5867 lines
199 KiB
C++
5867 lines
199 KiB
C++
/**************************************************************************/
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/* gdscript_parser.cpp */
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/**************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* https://godotengine.org */
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/**************************************************************************/
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/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
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/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
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/* */
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/* Permission is hereby granted, free of charge, to any person obtaining */
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/* a copy of this software and associated documentation files (the */
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/* "Software"), to deal in the Software without restriction, including */
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/* without limitation the rights to use, copy, modify, merge, publish, */
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/* distribute, sublicense, and/or sell copies of the Software, and to */
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/* permit persons to whom the Software is furnished to do so, subject to */
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/* the following conditions: */
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/* */
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/* The above copyright notice and this permission notice shall be */
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/* included in all copies or substantial portions of the Software. */
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/* */
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/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
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/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
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/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
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/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
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/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
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/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
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/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
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/**************************************************************************/
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#include "gdscript_parser.h"
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#include "gdscript.h"
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#include "gdscript_tokenizer_buffer.h"
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#include "core/config/project_settings.h"
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#include "core/io/file_access.h"
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#include "core/io/resource_loader.h"
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#include "core/math/math_defs.h"
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#include "scene/main/multiplayer_api.h"
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#ifdef DEBUG_ENABLED
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#include "core/os/os.h"
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#include "core/string/string_builder.h"
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#include "servers/text_server.h"
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#endif
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#ifdef TOOLS_ENABLED
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#include "editor/editor_settings.h"
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#endif
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// This function is used to determine that a type is "built-in" as opposed to native
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// and custom classes. So `Variant::NIL` and `Variant::OBJECT` are excluded:
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// `Variant::NIL` - `null` is literal, not a type.
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// `Variant::OBJECT` - `Object` should be treated as a class, not as a built-in type.
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static HashMap<StringName, Variant::Type> builtin_types;
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Variant::Type GDScriptParser::get_builtin_type(const StringName &p_type) {
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if (unlikely(builtin_types.is_empty())) {
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for (int i = 0; i < Variant::VARIANT_MAX; i++) {
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Variant::Type type = (Variant::Type)i;
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if (type != Variant::NIL && type != Variant::OBJECT) {
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builtin_types[Variant::get_type_name(type)] = type;
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}
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}
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}
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if (builtin_types.has(p_type)) {
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return builtin_types[p_type];
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}
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return Variant::VARIANT_MAX;
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}
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#ifdef TOOLS_ENABLED
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HashMap<String, String> GDScriptParser::theme_color_names;
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#endif
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HashMap<StringName, GDScriptParser::AnnotationInfo> GDScriptParser::valid_annotations;
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void GDScriptParser::cleanup() {
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builtin_types.clear();
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valid_annotations.clear();
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}
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void GDScriptParser::get_annotation_list(List<MethodInfo> *r_annotations) const {
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for (const KeyValue<StringName, AnnotationInfo> &E : valid_annotations) {
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r_annotations->push_back(E.value.info);
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}
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}
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bool GDScriptParser::annotation_exists(const String &p_annotation_name) const {
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return valid_annotations.has(p_annotation_name);
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}
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GDScriptParser::GDScriptParser() {
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// Register valid annotations.
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if (unlikely(valid_annotations.is_empty())) {
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register_annotation(MethodInfo("@tool"), AnnotationInfo::SCRIPT, &GDScriptParser::tool_annotation);
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register_annotation(MethodInfo("@icon", PropertyInfo(Variant::STRING, "icon_path")), AnnotationInfo::SCRIPT, &GDScriptParser::icon_annotation);
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register_annotation(MethodInfo("@static_unload"), AnnotationInfo::SCRIPT, &GDScriptParser::static_unload_annotation);
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register_annotation(MethodInfo("@onready"), AnnotationInfo::VARIABLE, &GDScriptParser::onready_annotation);
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// Export annotations.
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register_annotation(MethodInfo("@export"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_NONE, Variant::NIL>);
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register_annotation(MethodInfo("@export_enum", PropertyInfo(Variant::STRING, "names")), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_ENUM, Variant::NIL>, varray(), true);
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register_annotation(MethodInfo("@export_file", PropertyInfo(Variant::STRING, "filter")), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_FILE, Variant::STRING>, varray(""), true);
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register_annotation(MethodInfo("@export_dir"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_DIR, Variant::STRING>);
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register_annotation(MethodInfo("@export_global_file", PropertyInfo(Variant::STRING, "filter")), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_GLOBAL_FILE, Variant::STRING>, varray(""), true);
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register_annotation(MethodInfo("@export_global_dir"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_GLOBAL_DIR, Variant::STRING>);
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register_annotation(MethodInfo("@export_multiline"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_MULTILINE_TEXT, Variant::STRING>);
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register_annotation(MethodInfo("@export_placeholder", PropertyInfo(Variant::STRING, "placeholder")), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_PLACEHOLDER_TEXT, Variant::STRING>);
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register_annotation(MethodInfo("@export_range", PropertyInfo(Variant::FLOAT, "min"), PropertyInfo(Variant::FLOAT, "max"), PropertyInfo(Variant::FLOAT, "step"), PropertyInfo(Variant::STRING, "extra_hints")), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_RANGE, Variant::FLOAT>, varray(1.0, ""), true);
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register_annotation(MethodInfo("@export_exp_easing", PropertyInfo(Variant::STRING, "hints")), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_EXP_EASING, Variant::FLOAT>, varray(""), true);
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register_annotation(MethodInfo("@export_color_no_alpha"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_COLOR_NO_ALPHA, Variant::COLOR>);
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register_annotation(MethodInfo("@export_node_path", PropertyInfo(Variant::STRING, "type")), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_NODE_PATH_VALID_TYPES, Variant::NODE_PATH>, varray(""), true);
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register_annotation(MethodInfo("@export_flags", PropertyInfo(Variant::STRING, "names")), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_FLAGS, Variant::INT>, varray(), true);
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register_annotation(MethodInfo("@export_flags_2d_render"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_2D_RENDER, Variant::INT>);
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register_annotation(MethodInfo("@export_flags_2d_physics"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_2D_PHYSICS, Variant::INT>);
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register_annotation(MethodInfo("@export_flags_2d_navigation"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_2D_NAVIGATION, Variant::INT>);
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register_annotation(MethodInfo("@export_flags_3d_render"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_3D_RENDER, Variant::INT>);
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register_annotation(MethodInfo("@export_flags_3d_physics"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_3D_PHYSICS, Variant::INT>);
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register_annotation(MethodInfo("@export_flags_3d_navigation"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_3D_NAVIGATION, Variant::INT>);
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register_annotation(MethodInfo("@export_flags_avoidance"), AnnotationInfo::VARIABLE, &GDScriptParser::export_annotations<PROPERTY_HINT_LAYERS_AVOIDANCE, Variant::INT>);
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register_annotation(MethodInfo("@export_storage"), AnnotationInfo::VARIABLE, &GDScriptParser::export_storage_annotation);
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register_annotation(MethodInfo("@export_custom", PropertyInfo(Variant::INT, "hint", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_CLASS_IS_ENUM, "PropertyHint"), PropertyInfo(Variant::STRING, "hint_string"), PropertyInfo(Variant::INT, "usage", PROPERTY_HINT_NONE, "", PROPERTY_USAGE_CLASS_IS_BITFIELD, "PropertyUsageFlags")), AnnotationInfo::VARIABLE, &GDScriptParser::export_custom_annotation, varray(PROPERTY_USAGE_DEFAULT));
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// Export grouping annotations.
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register_annotation(MethodInfo("@export_category", PropertyInfo(Variant::STRING, "name")), AnnotationInfo::STANDALONE, &GDScriptParser::export_group_annotations<PROPERTY_USAGE_CATEGORY>);
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register_annotation(MethodInfo("@export_group", PropertyInfo(Variant::STRING, "name"), PropertyInfo(Variant::STRING, "prefix")), AnnotationInfo::STANDALONE, &GDScriptParser::export_group_annotations<PROPERTY_USAGE_GROUP>, varray(""));
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register_annotation(MethodInfo("@export_subgroup", PropertyInfo(Variant::STRING, "name"), PropertyInfo(Variant::STRING, "prefix")), AnnotationInfo::STANDALONE, &GDScriptParser::export_group_annotations<PROPERTY_USAGE_SUBGROUP>, varray(""));
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// Warning annotations.
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register_annotation(MethodInfo("@warning_ignore", PropertyInfo(Variant::STRING, "warning")), AnnotationInfo::CLASS_LEVEL | AnnotationInfo::STATEMENT, &GDScriptParser::warning_annotations, varray(), true);
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// Networking.
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register_annotation(MethodInfo("@rpc", PropertyInfo(Variant::STRING, "mode"), PropertyInfo(Variant::STRING, "sync"), PropertyInfo(Variant::STRING, "transfer_mode"), PropertyInfo(Variant::INT, "transfer_channel")), AnnotationInfo::FUNCTION, &GDScriptParser::rpc_annotation, varray("authority", "call_remote", "unreliable", 0));
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}
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#ifdef DEBUG_ENABLED
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is_ignoring_warnings = !(bool)GLOBAL_GET("debug/gdscript/warnings/enable");
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#endif
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#ifdef TOOLS_ENABLED
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if (unlikely(theme_color_names.is_empty())) {
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// Vectors.
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theme_color_names.insert("x", "axis_x_color");
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theme_color_names.insert("y", "axis_y_color");
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theme_color_names.insert("z", "axis_z_color");
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theme_color_names.insert("w", "axis_w_color");
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// Color.
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theme_color_names.insert("r", "axis_x_color");
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theme_color_names.insert("r8", "axis_x_color");
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theme_color_names.insert("g", "axis_y_color");
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theme_color_names.insert("g8", "axis_y_color");
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theme_color_names.insert("b", "axis_z_color");
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theme_color_names.insert("b8", "axis_z_color");
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theme_color_names.insert("a", "axis_w_color");
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theme_color_names.insert("a8", "axis_w_color");
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}
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#endif
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}
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GDScriptParser::~GDScriptParser() {
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while (list != nullptr) {
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Node *element = list;
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list = list->next;
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memdelete(element);
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}
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}
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void GDScriptParser::clear() {
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GDScriptParser tmp;
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tmp = *this;
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*this = GDScriptParser();
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}
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void GDScriptParser::push_error(const String &p_message, const Node *p_origin) {
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// TODO: Improve error reporting by pointing at source code.
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// TODO: Errors might point at more than one place at once (e.g. show previous declaration).
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panic_mode = true;
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// TODO: Improve positional information.
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if (p_origin == nullptr) {
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errors.push_back({ p_message, previous.start_line, previous.start_column });
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} else {
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errors.push_back({ p_message, p_origin->start_line, p_origin->leftmost_column });
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}
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}
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#ifdef DEBUG_ENABLED
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void GDScriptParser::push_warning(const Node *p_source, GDScriptWarning::Code p_code, const Vector<String> &p_symbols) {
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ERR_FAIL_NULL(p_source);
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ERR_FAIL_INDEX(p_code, GDScriptWarning::WARNING_MAX);
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if (is_ignoring_warnings) {
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return;
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}
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if (GLOBAL_GET("debug/gdscript/warnings/exclude_addons").booleanize() && script_path.begins_with("res://addons/")) {
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return;
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}
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GDScriptWarning::WarnLevel warn_level = (GDScriptWarning::WarnLevel)(int)GLOBAL_GET(GDScriptWarning::get_settings_path_from_code(p_code));
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if (warn_level == GDScriptWarning::IGNORE) {
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return;
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}
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PendingWarning pw;
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pw.source = p_source;
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pw.code = p_code;
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pw.treated_as_error = warn_level == GDScriptWarning::ERROR;
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pw.symbols = p_symbols;
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pending_warnings.push_back(pw);
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}
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void GDScriptParser::apply_pending_warnings() {
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for (const PendingWarning &pw : pending_warnings) {
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if (warning_ignored_lines[pw.code].has(pw.source->start_line)) {
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continue;
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}
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GDScriptWarning warning;
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warning.code = pw.code;
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warning.symbols = pw.symbols;
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warning.start_line = pw.source->start_line;
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warning.end_line = pw.source->end_line;
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warning.leftmost_column = pw.source->leftmost_column;
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warning.rightmost_column = pw.source->rightmost_column;
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if (pw.treated_as_error) {
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push_error(warning.get_message() + String(" (Warning treated as error.)"), pw.source);
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continue;
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}
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List<GDScriptWarning>::Element *before = nullptr;
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for (List<GDScriptWarning>::Element *E = warnings.front(); E; E = E->next()) {
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if (E->get().start_line > warning.start_line) {
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break;
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}
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before = E;
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}
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if (before) {
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warnings.insert_after(before, warning);
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} else {
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warnings.push_front(warning);
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}
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}
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pending_warnings.clear();
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}
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#endif
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void GDScriptParser::override_completion_context(const Node *p_for_node, CompletionType p_type, Node *p_node, int p_argument) {
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if (!for_completion) {
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return;
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}
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if (completion_context.node != p_for_node) {
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return;
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}
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CompletionContext context;
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context.type = p_type;
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context.current_class = current_class;
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context.current_function = current_function;
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context.current_suite = current_suite;
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context.current_line = tokenizer->get_cursor_line();
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context.current_argument = p_argument;
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context.node = p_node;
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context.parser = this;
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completion_context = context;
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}
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void GDScriptParser::make_completion_context(CompletionType p_type, Node *p_node, int p_argument) {
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if (!for_completion) {
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return;
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}
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if (previous.cursor_place != GDScriptTokenizerText::CURSOR_MIDDLE && previous.cursor_place != GDScriptTokenizerText::CURSOR_END && current.cursor_place == GDScriptTokenizerText::CURSOR_NONE) {
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return;
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}
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CompletionContext context;
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context.type = p_type;
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context.current_class = current_class;
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context.current_function = current_function;
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context.current_suite = current_suite;
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context.current_line = tokenizer->get_cursor_line();
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context.current_argument = p_argument;
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context.node = p_node;
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context.parser = this;
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completion_context = context;
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}
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void GDScriptParser::make_completion_context(CompletionType p_type, Variant::Type p_builtin_type) {
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if (!for_completion) {
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return;
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}
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if (previous.cursor_place != GDScriptTokenizerText::CURSOR_MIDDLE && previous.cursor_place != GDScriptTokenizerText::CURSOR_END && current.cursor_place == GDScriptTokenizerText::CURSOR_NONE) {
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return;
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}
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CompletionContext context;
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context.type = p_type;
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context.current_class = current_class;
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context.current_function = current_function;
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context.current_suite = current_suite;
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context.current_line = tokenizer->get_cursor_line();
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context.builtin_type = p_builtin_type;
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context.parser = this;
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completion_context = context;
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}
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void GDScriptParser::push_completion_call(Node *p_call) {
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if (!for_completion) {
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return;
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}
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CompletionCall call;
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call.call = p_call;
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call.argument = 0;
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completion_call_stack.push_back(call);
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if (previous.cursor_place == GDScriptTokenizerText::CURSOR_MIDDLE || previous.cursor_place == GDScriptTokenizerText::CURSOR_END || current.cursor_place == GDScriptTokenizerText::CURSOR_BEGINNING) {
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completion_call = call;
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}
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}
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void GDScriptParser::pop_completion_call() {
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if (!for_completion) {
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return;
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}
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ERR_FAIL_COND_MSG(completion_call_stack.is_empty(), "Trying to pop empty completion call stack");
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completion_call_stack.pop_back();
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}
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void GDScriptParser::set_last_completion_call_arg(int p_argument) {
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if (!for_completion || passed_cursor) {
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return;
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}
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ERR_FAIL_COND_MSG(completion_call_stack.is_empty(), "Trying to set argument on empty completion call stack");
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completion_call_stack.back()->get().argument = p_argument;
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}
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Error GDScriptParser::parse(const String &p_source_code, const String &p_script_path, bool p_for_completion, bool p_parse_body) {
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clear();
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String source = p_source_code;
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int cursor_line = -1;
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int cursor_column = -1;
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for_completion = p_for_completion;
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parse_body = p_parse_body;
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int tab_size = 4;
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#ifdef TOOLS_ENABLED
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if (EditorSettings::get_singleton()) {
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tab_size = EditorSettings::get_singleton()->get_setting("text_editor/behavior/indent/size");
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}
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#endif // TOOLS_ENABLED
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if (p_for_completion) {
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// Remove cursor sentinel char.
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const Vector<String> lines = p_source_code.split("\n");
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cursor_line = 1;
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cursor_column = 1;
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for (int i = 0; i < lines.size(); i++) {
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bool found = false;
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const String &line = lines[i];
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for (int j = 0; j < line.size(); j++) {
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if (line[j] == char32_t(0xFFFF)) {
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found = true;
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break;
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} else if (line[j] == '\t') {
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cursor_column += tab_size - 1;
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}
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cursor_column++;
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}
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if (found) {
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break;
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}
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cursor_line++;
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cursor_column = 1;
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}
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source = source.replace_first(String::chr(0xFFFF), String());
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}
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GDScriptTokenizerText *text_tokenizer = memnew(GDScriptTokenizerText);
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text_tokenizer->set_source_code(source);
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tokenizer = text_tokenizer;
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tokenizer->set_cursor_position(cursor_line, cursor_column);
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script_path = p_script_path.simplify_path();
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current = tokenizer->scan();
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// Avoid error or newline as the first token.
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// The latter can mess with the parser when opening files filled exclusively with comments and newlines.
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while (current.type == GDScriptTokenizer::Token::ERROR || current.type == GDScriptTokenizer::Token::NEWLINE) {
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if (current.type == GDScriptTokenizer::Token::ERROR) {
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push_error(current.literal);
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}
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current = tokenizer->scan();
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}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
// Warn about parsing an empty script file:
|
|
if (current.type == GDScriptTokenizer::Token::TK_EOF) {
|
|
// Create a dummy Node for the warning, pointing to the very beginning of the file
|
|
Node *nd = alloc_node<PassNode>();
|
|
nd->start_line = 1;
|
|
nd->start_column = 0;
|
|
nd->end_line = 1;
|
|
nd->leftmost_column = 0;
|
|
nd->rightmost_column = 0;
|
|
push_warning(nd, GDScriptWarning::EMPTY_FILE);
|
|
}
|
|
#endif
|
|
|
|
push_multiline(false); // Keep one for the whole parsing.
|
|
parse_program();
|
|
pop_multiline();
|
|
|
|
memdelete(text_tokenizer);
|
|
tokenizer = nullptr;
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
if (multiline_stack.size() > 0) {
|
|
ERR_PRINT("Parser bug: Imbalanced multiline stack.");
|
|
}
|
|
#endif
|
|
|
|
if (errors.is_empty()) {
|
|
return OK;
|
|
} else {
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
}
|
|
|
|
Error GDScriptParser::parse_binary(const Vector<uint8_t> &p_binary, const String &p_script_path) {
|
|
GDScriptTokenizerBuffer *buffer_tokenizer = memnew(GDScriptTokenizerBuffer);
|
|
Error err = buffer_tokenizer->set_code_buffer(p_binary);
|
|
|
|
if (err) {
|
|
memdelete(buffer_tokenizer);
|
|
return err;
|
|
}
|
|
|
|
tokenizer = buffer_tokenizer;
|
|
script_path = p_script_path.simplify_path();
|
|
current = tokenizer->scan();
|
|
// Avoid error or newline as the first token.
|
|
// The latter can mess with the parser when opening files filled exclusively with comments and newlines.
|
|
while (current.type == GDScriptTokenizer::Token::ERROR || current.type == GDScriptTokenizer::Token::NEWLINE) {
|
|
if (current.type == GDScriptTokenizer::Token::ERROR) {
|
|
push_error(current.literal);
|
|
}
|
|
current = tokenizer->scan();
|
|
}
|
|
|
|
push_multiline(false); // Keep one for the whole parsing.
|
|
parse_program();
|
|
pop_multiline();
|
|
|
|
memdelete(buffer_tokenizer);
|
|
tokenizer = nullptr;
|
|
|
|
if (errors.is_empty()) {
|
|
return OK;
|
|
} else {
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
}
|
|
|
|
GDScriptTokenizer::Token GDScriptParser::advance() {
|
|
lambda_ended = false; // Empty marker since we're past the end in any case.
|
|
|
|
if (current.type == GDScriptTokenizer::Token::TK_EOF) {
|
|
ERR_FAIL_COND_V_MSG(current.type == GDScriptTokenizer::Token::TK_EOF, current, "GDScript parser bug: Trying to advance past the end of stream.");
|
|
}
|
|
if (for_completion && !completion_call_stack.is_empty()) {
|
|
if (completion_call.call == nullptr && tokenizer->is_past_cursor()) {
|
|
completion_call = completion_call_stack.back()->get();
|
|
passed_cursor = true;
|
|
}
|
|
}
|
|
previous = current;
|
|
current = tokenizer->scan();
|
|
while (current.type == GDScriptTokenizer::Token::ERROR) {
|
|
push_error(current.literal);
|
|
current = tokenizer->scan();
|
|
}
|
|
if (previous.type != GDScriptTokenizer::Token::DEDENT) { // `DEDENT` belongs to the next non-empty line.
|
|
for (Node *n : nodes_in_progress) {
|
|
update_extents(n);
|
|
}
|
|
}
|
|
return previous;
|
|
}
|
|
|
|
bool GDScriptParser::match(GDScriptTokenizer::Token::Type p_token_type) {
|
|
if (!check(p_token_type)) {
|
|
return false;
|
|
}
|
|
advance();
|
|
return true;
|
|
}
|
|
|
|
bool GDScriptParser::check(GDScriptTokenizer::Token::Type p_token_type) const {
|
|
if (p_token_type == GDScriptTokenizer::Token::IDENTIFIER) {
|
|
return current.is_identifier();
|
|
}
|
|
return current.type == p_token_type;
|
|
}
|
|
|
|
bool GDScriptParser::consume(GDScriptTokenizer::Token::Type p_token_type, const String &p_error_message) {
|
|
if (match(p_token_type)) {
|
|
return true;
|
|
}
|
|
push_error(p_error_message);
|
|
return false;
|
|
}
|
|
|
|
bool GDScriptParser::is_at_end() const {
|
|
return check(GDScriptTokenizer::Token::TK_EOF);
|
|
}
|
|
|
|
void GDScriptParser::synchronize() {
|
|
panic_mode = false;
|
|
while (!is_at_end()) {
|
|
if (previous.type == GDScriptTokenizer::Token::NEWLINE || previous.type == GDScriptTokenizer::Token::SEMICOLON) {
|
|
return;
|
|
}
|
|
|
|
switch (current.type) {
|
|
case GDScriptTokenizer::Token::CLASS:
|
|
case GDScriptTokenizer::Token::FUNC:
|
|
case GDScriptTokenizer::Token::STATIC:
|
|
case GDScriptTokenizer::Token::VAR:
|
|
case GDScriptTokenizer::Token::CONST:
|
|
case GDScriptTokenizer::Token::SIGNAL:
|
|
//case GDScriptTokenizer::Token::IF: // Can also be inside expressions.
|
|
case GDScriptTokenizer::Token::FOR:
|
|
case GDScriptTokenizer::Token::WHILE:
|
|
case GDScriptTokenizer::Token::MATCH:
|
|
case GDScriptTokenizer::Token::RETURN:
|
|
case GDScriptTokenizer::Token::ANNOTATION:
|
|
return;
|
|
default:
|
|
// Do nothing.
|
|
break;
|
|
}
|
|
|
|
advance();
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::push_multiline(bool p_state) {
|
|
multiline_stack.push_back(p_state);
|
|
tokenizer->set_multiline_mode(p_state);
|
|
if (p_state) {
|
|
// Consume potential whitespace tokens already waiting in line.
|
|
while (current.type == GDScriptTokenizer::Token::NEWLINE || current.type == GDScriptTokenizer::Token::INDENT || current.type == GDScriptTokenizer::Token::DEDENT) {
|
|
current = tokenizer->scan(); // Don't call advance() here, as we don't want to change the previous token.
|
|
}
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::pop_multiline() {
|
|
ERR_FAIL_COND_MSG(multiline_stack.is_empty(), "Parser bug: trying to pop from multiline stack without available value.");
|
|
multiline_stack.pop_back();
|
|
tokenizer->set_multiline_mode(multiline_stack.size() > 0 ? multiline_stack.back()->get() : false);
|
|
}
|
|
|
|
bool GDScriptParser::is_statement_end_token() const {
|
|
return check(GDScriptTokenizer::Token::NEWLINE) || check(GDScriptTokenizer::Token::SEMICOLON) || check(GDScriptTokenizer::Token::TK_EOF);
|
|
}
|
|
|
|
bool GDScriptParser::is_statement_end() const {
|
|
return lambda_ended || in_lambda || is_statement_end_token();
|
|
}
|
|
|
|
void GDScriptParser::end_statement(const String &p_context) {
|
|
bool found = false;
|
|
while (is_statement_end() && !is_at_end()) {
|
|
// Remove sequential newlines/semicolons.
|
|
if (is_statement_end_token()) {
|
|
// Only consume if this is an actual token.
|
|
advance();
|
|
} else if (lambda_ended) {
|
|
lambda_ended = false; // Consume this "token".
|
|
found = true;
|
|
break;
|
|
} else {
|
|
if (!found) {
|
|
lambda_ended = true; // Mark the lambda as done since we found something else to end the statement.
|
|
found = true;
|
|
}
|
|
break;
|
|
}
|
|
|
|
found = true;
|
|
}
|
|
if (!found && !is_at_end()) {
|
|
push_error(vformat(R"(Expected end of statement after %s, found "%s" instead.)", p_context, current.get_name()));
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::parse_program() {
|
|
head = alloc_node<ClassNode>();
|
|
head->start_line = 1;
|
|
head->end_line = 1;
|
|
head->fqcn = GDScript::canonicalize_path(script_path);
|
|
current_class = head;
|
|
bool can_have_class_or_extends = true;
|
|
|
|
#define PUSH_PENDING_ANNOTATIONS_TO_HEAD \
|
|
if (!annotation_stack.is_empty()) { \
|
|
for (AnnotationNode * annot : annotation_stack) { \
|
|
head->annotations.push_back(annot); \
|
|
} \
|
|
annotation_stack.clear(); \
|
|
}
|
|
|
|
while (!check(GDScriptTokenizer::Token::TK_EOF)) {
|
|
if (match(GDScriptTokenizer::Token::ANNOTATION)) {
|
|
AnnotationNode *annotation = parse_annotation(AnnotationInfo::SCRIPT | AnnotationInfo::CLASS_LEVEL | AnnotationInfo::STANDALONE);
|
|
if (annotation != nullptr) {
|
|
if (annotation->applies_to(AnnotationInfo::CLASS)) {
|
|
// We do not know in advance what the annotation will be applied to: the `head` class or the subsequent inner class.
|
|
// If we encounter `class_name`, `extends` or pure `SCRIPT` annotation, then it's `head`, otherwise it's an inner class.
|
|
annotation_stack.push_back(annotation);
|
|
} else if (annotation->applies_to(AnnotationInfo::SCRIPT)) {
|
|
PUSH_PENDING_ANNOTATIONS_TO_HEAD;
|
|
if (annotation->name == SNAME("@tool") || annotation->name == SNAME("@icon")) {
|
|
// Some annotations need to be resolved in the parser.
|
|
annotation->apply(this, head, nullptr); // `head->outer == nullptr`.
|
|
} else {
|
|
head->annotations.push_back(annotation);
|
|
}
|
|
} else if (annotation->applies_to(AnnotationInfo::STANDALONE)) {
|
|
if (previous.type != GDScriptTokenizer::Token::NEWLINE) {
|
|
push_error(R"(Expected newline after a standalone annotation.)");
|
|
}
|
|
if (annotation->name == SNAME("@export_category") || annotation->name == SNAME("@export_group") || annotation->name == SNAME("@export_subgroup")) {
|
|
head->add_member_group(annotation);
|
|
// This annotation must appear after script-level annotations and `class_name`/`extends`,
|
|
// so we stop looking for script-level stuff.
|
|
can_have_class_or_extends = false;
|
|
break;
|
|
} else {
|
|
// For potential non-group standalone annotations.
|
|
push_error(R"(Unexpected standalone annotation.)");
|
|
}
|
|
} else {
|
|
annotation_stack.push_back(annotation);
|
|
// This annotation must appear after script-level annotations and `class_name`/`extends`,
|
|
// so we stop looking for script-level stuff.
|
|
can_have_class_or_extends = false;
|
|
break;
|
|
}
|
|
}
|
|
} else if (check(GDScriptTokenizer::Token::LITERAL) && current.literal.get_type() == Variant::STRING) {
|
|
// Allow strings in class body as multiline comments.
|
|
advance();
|
|
if (!match(GDScriptTokenizer::Token::NEWLINE)) {
|
|
push_error("Expected newline after comment string.");
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
while (can_have_class_or_extends) {
|
|
// Order here doesn't matter, but there should be only one of each at most.
|
|
switch (current.type) {
|
|
case GDScriptTokenizer::Token::CLASS_NAME:
|
|
PUSH_PENDING_ANNOTATIONS_TO_HEAD;
|
|
if (head->start_line == 1) {
|
|
reset_extents(head, current);
|
|
}
|
|
advance();
|
|
if (head->identifier != nullptr) {
|
|
push_error(R"("class_name" can only be used once.)");
|
|
} else {
|
|
parse_class_name();
|
|
}
|
|
break;
|
|
case GDScriptTokenizer::Token::EXTENDS:
|
|
PUSH_PENDING_ANNOTATIONS_TO_HEAD;
|
|
if (head->start_line == 1) {
|
|
reset_extents(head, current);
|
|
}
|
|
advance();
|
|
if (head->extends_used) {
|
|
push_error(R"("extends" can only be used once.)");
|
|
} else {
|
|
parse_extends();
|
|
end_statement("superclass");
|
|
}
|
|
break;
|
|
case GDScriptTokenizer::Token::TK_EOF:
|
|
PUSH_PENDING_ANNOTATIONS_TO_HEAD;
|
|
can_have_class_or_extends = false;
|
|
break;
|
|
case GDScriptTokenizer::Token::LITERAL:
|
|
if (current.literal.get_type() == Variant::STRING) {
|
|
// Allow strings in class body as multiline comments.
|
|
advance();
|
|
if (!match(GDScriptTokenizer::Token::NEWLINE)) {
|
|
push_error("Expected newline after comment string.");
|
|
}
|
|
break;
|
|
}
|
|
[[fallthrough]];
|
|
default:
|
|
// No tokens are allowed between script annotations and class/extends.
|
|
can_have_class_or_extends = false;
|
|
break;
|
|
}
|
|
|
|
if (panic_mode) {
|
|
synchronize();
|
|
}
|
|
}
|
|
|
|
// When the only thing needed is the class name and the icon, we don't need to parse the hole file.
|
|
// It really speed up the call to GDScriptLanguage::get_global_class_name especially for large script.
|
|
if (!parse_body) {
|
|
return;
|
|
}
|
|
|
|
#undef PUSH_PENDING_ANNOTATIONS_TO_HEAD
|
|
|
|
parse_class_body(true);
|
|
complete_extents(head);
|
|
|
|
#ifdef TOOLS_ENABLED
|
|
const HashMap<int, GDScriptTokenizer::CommentData> &comments = tokenizer->get_comments();
|
|
int line = MIN(max_script_doc_line, head->end_line);
|
|
while (line > 0) {
|
|
if (comments.has(line) && comments[line].new_line && comments[line].comment.begins_with("##")) {
|
|
head->doc_data = parse_class_doc_comment(line);
|
|
break;
|
|
}
|
|
line--;
|
|
}
|
|
|
|
#endif // TOOLS_ENABLED
|
|
|
|
if (!check(GDScriptTokenizer::Token::TK_EOF)) {
|
|
push_error("Expected end of file.");
|
|
}
|
|
|
|
clear_unused_annotations();
|
|
}
|
|
|
|
Ref<GDScriptParserRef> GDScriptParser::get_depended_parser_for(const String &p_path) {
|
|
Ref<GDScriptParserRef> ref;
|
|
if (depended_parsers.has(p_path)) {
|
|
ref = depended_parsers[p_path];
|
|
} else {
|
|
Error err = OK;
|
|
ref = GDScriptCache::get_parser(p_path, GDScriptParserRef::EMPTY, err, script_path);
|
|
if (ref.is_valid()) {
|
|
depended_parsers[p_path] = ref;
|
|
}
|
|
}
|
|
|
|
return ref;
|
|
}
|
|
|
|
const HashMap<String, Ref<GDScriptParserRef>> &GDScriptParser::get_depended_parsers() {
|
|
return depended_parsers;
|
|
}
|
|
|
|
GDScriptParser::ClassNode *GDScriptParser::find_class(const String &p_qualified_name) const {
|
|
String first = p_qualified_name.get_slice("::", 0);
|
|
|
|
Vector<String> class_names;
|
|
GDScriptParser::ClassNode *result = nullptr;
|
|
// Empty initial name means start at the head.
|
|
if (first.is_empty() || (head->identifier && first == head->identifier->name)) {
|
|
class_names = p_qualified_name.split("::");
|
|
result = head;
|
|
} else if (p_qualified_name.begins_with(script_path)) {
|
|
// Script path could have a class path separator("::") in it.
|
|
class_names = p_qualified_name.trim_prefix(script_path).split("::");
|
|
result = head;
|
|
} else if (head->has_member(first)) {
|
|
class_names = p_qualified_name.split("::");
|
|
GDScriptParser::ClassNode::Member member = head->get_member(first);
|
|
if (member.type == GDScriptParser::ClassNode::Member::CLASS) {
|
|
result = member.m_class;
|
|
}
|
|
}
|
|
|
|
// Starts at index 1 because index 0 was handled above.
|
|
for (int i = 1; result != nullptr && i < class_names.size(); i++) {
|
|
const String ¤t_name = class_names[i];
|
|
GDScriptParser::ClassNode *next = nullptr;
|
|
if (result->has_member(current_name)) {
|
|
GDScriptParser::ClassNode::Member member = result->get_member(current_name);
|
|
if (member.type == GDScriptParser::ClassNode::Member::CLASS) {
|
|
next = member.m_class;
|
|
}
|
|
}
|
|
result = next;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
bool GDScriptParser::has_class(const GDScriptParser::ClassNode *p_class) const {
|
|
if (head->fqcn.is_empty() && p_class->fqcn.get_slice("::", 0).is_empty()) {
|
|
return p_class == head;
|
|
} else if (p_class->fqcn.begins_with(head->fqcn)) {
|
|
return find_class(p_class->fqcn.trim_prefix(head->fqcn)) == p_class;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
GDScriptParser::ClassNode *GDScriptParser::parse_class(bool p_is_static) {
|
|
ClassNode *n_class = alloc_node<ClassNode>();
|
|
|
|
ClassNode *previous_class = current_class;
|
|
current_class = n_class;
|
|
n_class->outer = previous_class;
|
|
|
|
if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected identifier for the class name after "class".)")) {
|
|
n_class->identifier = parse_identifier();
|
|
if (n_class->outer) {
|
|
String fqcn = n_class->outer->fqcn;
|
|
if (fqcn.is_empty()) {
|
|
fqcn = GDScript::canonicalize_path(script_path);
|
|
}
|
|
n_class->fqcn = fqcn + "::" + n_class->identifier->name;
|
|
} else {
|
|
n_class->fqcn = n_class->identifier->name;
|
|
}
|
|
}
|
|
|
|
if (match(GDScriptTokenizer::Token::EXTENDS)) {
|
|
parse_extends();
|
|
}
|
|
|
|
consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after class declaration.)");
|
|
|
|
bool multiline = match(GDScriptTokenizer::Token::NEWLINE);
|
|
|
|
if (multiline && !consume(GDScriptTokenizer::Token::INDENT, R"(Expected indented block after class declaration.)")) {
|
|
current_class = previous_class;
|
|
complete_extents(n_class);
|
|
return n_class;
|
|
}
|
|
|
|
if (match(GDScriptTokenizer::Token::EXTENDS)) {
|
|
if (n_class->extends_used) {
|
|
push_error(R"(Cannot use "extends" more than once in the same class.)");
|
|
}
|
|
parse_extends();
|
|
end_statement("superclass");
|
|
}
|
|
|
|
parse_class_body(multiline);
|
|
complete_extents(n_class);
|
|
|
|
if (multiline) {
|
|
consume(GDScriptTokenizer::Token::DEDENT, R"(Missing unindent at the end of the class body.)");
|
|
}
|
|
|
|
current_class = previous_class;
|
|
return n_class;
|
|
}
|
|
|
|
void GDScriptParser::parse_class_name() {
|
|
if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected identifier for the global class name after "class_name".)")) {
|
|
current_class->identifier = parse_identifier();
|
|
current_class->fqcn = String(current_class->identifier->name);
|
|
}
|
|
|
|
if (match(GDScriptTokenizer::Token::EXTENDS)) {
|
|
// Allow extends on the same line.
|
|
parse_extends();
|
|
end_statement("superclass");
|
|
} else {
|
|
end_statement("class_name statement");
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::parse_extends() {
|
|
current_class->extends_used = true;
|
|
|
|
int chain_index = 0;
|
|
|
|
if (match(GDScriptTokenizer::Token::LITERAL)) {
|
|
if (previous.literal.get_type() != Variant::STRING) {
|
|
push_error(vformat(R"(Only strings or identifiers can be used after "extends", found "%s" instead.)", Variant::get_type_name(previous.literal.get_type())));
|
|
}
|
|
current_class->extends_path = previous.literal;
|
|
|
|
if (!match(GDScriptTokenizer::Token::PERIOD)) {
|
|
return;
|
|
}
|
|
}
|
|
|
|
make_completion_context(COMPLETION_INHERIT_TYPE, current_class, chain_index++);
|
|
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected superclass name after "extends".)")) {
|
|
return;
|
|
}
|
|
current_class->extends.push_back(parse_identifier());
|
|
|
|
while (match(GDScriptTokenizer::Token::PERIOD)) {
|
|
make_completion_context(COMPLETION_INHERIT_TYPE, current_class, chain_index++);
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected superclass name after ".".)")) {
|
|
return;
|
|
}
|
|
current_class->extends.push_back(parse_identifier());
|
|
}
|
|
}
|
|
|
|
template <typename T>
|
|
void GDScriptParser::parse_class_member(T *(GDScriptParser::*p_parse_function)(bool), AnnotationInfo::TargetKind p_target, const String &p_member_kind, bool p_is_static) {
|
|
advance();
|
|
|
|
// Consume annotations.
|
|
List<AnnotationNode *> annotations;
|
|
while (!annotation_stack.is_empty()) {
|
|
AnnotationNode *last_annotation = annotation_stack.back()->get();
|
|
if (last_annotation->applies_to(p_target)) {
|
|
annotations.push_front(last_annotation);
|
|
annotation_stack.pop_back();
|
|
} else {
|
|
push_error(vformat(R"(Annotation "%s" cannot be applied to a %s.)", last_annotation->name, p_member_kind));
|
|
clear_unused_annotations();
|
|
}
|
|
}
|
|
|
|
T *member = (this->*p_parse_function)(p_is_static);
|
|
if (member == nullptr) {
|
|
return;
|
|
}
|
|
|
|
#ifdef TOOLS_ENABLED
|
|
int doc_comment_line = member->start_line - 1;
|
|
#endif // TOOLS_ENABLED
|
|
|
|
for (AnnotationNode *&annotation : annotations) {
|
|
member->annotations.push_back(annotation);
|
|
#ifdef TOOLS_ENABLED
|
|
if (annotation->start_line <= doc_comment_line) {
|
|
doc_comment_line = annotation->start_line - 1;
|
|
}
|
|
#endif // TOOLS_ENABLED
|
|
}
|
|
|
|
#ifdef TOOLS_ENABLED
|
|
if constexpr (std::is_same_v<T, ClassNode>) {
|
|
if (has_comment(member->start_line, true)) {
|
|
// Inline doc comment.
|
|
member->doc_data = parse_class_doc_comment(member->start_line, true);
|
|
} else if (has_comment(doc_comment_line, true) && tokenizer->get_comments()[doc_comment_line].new_line) {
|
|
// Normal doc comment. Don't check `min_member_doc_line` because a class ends parsing after its members.
|
|
// This may not work correctly for cases like `var a; class B`, but it doesn't matter in practice.
|
|
member->doc_data = parse_class_doc_comment(doc_comment_line);
|
|
}
|
|
} else {
|
|
if (has_comment(member->start_line, true)) {
|
|
// Inline doc comment.
|
|
member->doc_data = parse_doc_comment(member->start_line, true);
|
|
} else if (doc_comment_line >= min_member_doc_line && has_comment(doc_comment_line, true) && tokenizer->get_comments()[doc_comment_line].new_line) {
|
|
// Normal doc comment.
|
|
member->doc_data = parse_doc_comment(doc_comment_line);
|
|
}
|
|
}
|
|
|
|
min_member_doc_line = member->end_line + 1; // Prevent multiple members from using the same doc comment.
|
|
#endif // TOOLS_ENABLED
|
|
|
|
if (member->identifier != nullptr) {
|
|
if (!((String)member->identifier->name).is_empty()) { // Enums may be unnamed.
|
|
if (current_class->members_indices.has(member->identifier->name)) {
|
|
push_error(vformat(R"(%s "%s" has the same name as a previously declared %s.)", p_member_kind.capitalize(), member->identifier->name, current_class->get_member(member->identifier->name).get_type_name()), member->identifier);
|
|
} else {
|
|
current_class->add_member(member);
|
|
}
|
|
} else {
|
|
current_class->add_member(member);
|
|
}
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::parse_class_body(bool p_is_multiline) {
|
|
bool class_end = false;
|
|
bool next_is_static = false;
|
|
while (!class_end && !is_at_end()) {
|
|
GDScriptTokenizer::Token token = current;
|
|
switch (token.type) {
|
|
case GDScriptTokenizer::Token::VAR:
|
|
parse_class_member(&GDScriptParser::parse_variable, AnnotationInfo::VARIABLE, "variable", next_is_static);
|
|
if (next_is_static) {
|
|
current_class->has_static_data = true;
|
|
}
|
|
break;
|
|
case GDScriptTokenizer::Token::CONST:
|
|
parse_class_member(&GDScriptParser::parse_constant, AnnotationInfo::CONSTANT, "constant");
|
|
break;
|
|
case GDScriptTokenizer::Token::SIGNAL:
|
|
parse_class_member(&GDScriptParser::parse_signal, AnnotationInfo::SIGNAL, "signal");
|
|
break;
|
|
case GDScriptTokenizer::Token::FUNC:
|
|
parse_class_member(&GDScriptParser::parse_function, AnnotationInfo::FUNCTION, "function", next_is_static);
|
|
break;
|
|
case GDScriptTokenizer::Token::CLASS:
|
|
parse_class_member(&GDScriptParser::parse_class, AnnotationInfo::CLASS, "class");
|
|
break;
|
|
case GDScriptTokenizer::Token::ENUM:
|
|
parse_class_member(&GDScriptParser::parse_enum, AnnotationInfo::NONE, "enum");
|
|
break;
|
|
case GDScriptTokenizer::Token::STATIC: {
|
|
advance();
|
|
next_is_static = true;
|
|
if (!check(GDScriptTokenizer::Token::FUNC) && !check(GDScriptTokenizer::Token::VAR)) {
|
|
push_error(R"(Expected "func" or "var" after "static".)");
|
|
}
|
|
} break;
|
|
case GDScriptTokenizer::Token::ANNOTATION: {
|
|
advance();
|
|
|
|
// Check for class-level and standalone annotations.
|
|
AnnotationNode *annotation = parse_annotation(AnnotationInfo::CLASS_LEVEL | AnnotationInfo::STANDALONE);
|
|
if (annotation != nullptr) {
|
|
if (annotation->applies_to(AnnotationInfo::STANDALONE)) {
|
|
if (previous.type != GDScriptTokenizer::Token::NEWLINE) {
|
|
push_error(R"(Expected newline after a standalone annotation.)");
|
|
}
|
|
if (annotation->name == SNAME("@export_category") || annotation->name == SNAME("@export_group") || annotation->name == SNAME("@export_subgroup")) {
|
|
current_class->add_member_group(annotation);
|
|
} else {
|
|
// For potential non-group standalone annotations.
|
|
push_error(R"(Unexpected standalone annotation.)");
|
|
}
|
|
} else { // `AnnotationInfo::CLASS_LEVEL`.
|
|
annotation_stack.push_back(annotation);
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
case GDScriptTokenizer::Token::PASS:
|
|
advance();
|
|
end_statement(R"("pass")");
|
|
break;
|
|
case GDScriptTokenizer::Token::DEDENT:
|
|
class_end = true;
|
|
break;
|
|
case GDScriptTokenizer::Token::LITERAL:
|
|
if (current.literal.get_type() == Variant::STRING) {
|
|
// Allow strings in class body as multiline comments.
|
|
advance();
|
|
if (!match(GDScriptTokenizer::Token::NEWLINE)) {
|
|
push_error("Expected newline after comment string.");
|
|
}
|
|
break;
|
|
}
|
|
[[fallthrough]];
|
|
default:
|
|
// Display a completion with identifiers.
|
|
make_completion_context(COMPLETION_IDENTIFIER, nullptr);
|
|
push_error(vformat(R"(Unexpected "%s" in class body.)", current.get_name()));
|
|
advance();
|
|
break;
|
|
}
|
|
if (token.type != GDScriptTokenizer::Token::STATIC) {
|
|
next_is_static = false;
|
|
}
|
|
if (panic_mode) {
|
|
synchronize();
|
|
}
|
|
if (!p_is_multiline) {
|
|
class_end = true;
|
|
}
|
|
}
|
|
}
|
|
|
|
GDScriptParser::VariableNode *GDScriptParser::parse_variable(bool p_is_static) {
|
|
return parse_variable(p_is_static, true);
|
|
}
|
|
|
|
GDScriptParser::VariableNode *GDScriptParser::parse_variable(bool p_is_static, bool p_allow_property) {
|
|
VariableNode *variable = alloc_node<VariableNode>();
|
|
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected variable name after "var".)")) {
|
|
complete_extents(variable);
|
|
return nullptr;
|
|
}
|
|
|
|
variable->identifier = parse_identifier();
|
|
variable->export_info.name = variable->identifier->name;
|
|
variable->is_static = p_is_static;
|
|
|
|
if (match(GDScriptTokenizer::Token::COLON)) {
|
|
if (check(GDScriptTokenizer::Token::NEWLINE)) {
|
|
if (p_allow_property) {
|
|
advance();
|
|
return parse_property(variable, true);
|
|
} else {
|
|
push_error(R"(Expected type after ":")");
|
|
complete_extents(variable);
|
|
return nullptr;
|
|
}
|
|
} else if (check((GDScriptTokenizer::Token::EQUAL))) {
|
|
// Infer type.
|
|
variable->infer_datatype = true;
|
|
} else {
|
|
if (p_allow_property) {
|
|
make_completion_context(COMPLETION_PROPERTY_DECLARATION_OR_TYPE, variable);
|
|
if (check(GDScriptTokenizer::Token::IDENTIFIER)) {
|
|
// Check if get or set.
|
|
if (current.get_identifier() == "get" || current.get_identifier() == "set") {
|
|
return parse_property(variable, false);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Parse type.
|
|
variable->datatype_specifier = parse_type();
|
|
}
|
|
}
|
|
|
|
if (match(GDScriptTokenizer::Token::EQUAL)) {
|
|
// Initializer.
|
|
variable->initializer = parse_expression(false);
|
|
if (variable->initializer == nullptr) {
|
|
push_error(R"(Expected expression for variable initial value after "=".)");
|
|
}
|
|
variable->assignments++;
|
|
}
|
|
|
|
if (p_allow_property && match(GDScriptTokenizer::Token::COLON)) {
|
|
if (match(GDScriptTokenizer::Token::NEWLINE)) {
|
|
return parse_property(variable, true);
|
|
} else {
|
|
return parse_property(variable, false);
|
|
}
|
|
}
|
|
|
|
complete_extents(variable);
|
|
end_statement("variable declaration");
|
|
|
|
return variable;
|
|
}
|
|
|
|
GDScriptParser::VariableNode *GDScriptParser::parse_property(VariableNode *p_variable, bool p_need_indent) {
|
|
if (p_need_indent) {
|
|
if (!consume(GDScriptTokenizer::Token::INDENT, R"(Expected indented block for property after ":".)")) {
|
|
complete_extents(p_variable);
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
VariableNode *property = p_variable;
|
|
|
|
make_completion_context(COMPLETION_PROPERTY_DECLARATION, property);
|
|
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected "get" or "set" for property declaration.)")) {
|
|
complete_extents(p_variable);
|
|
return nullptr;
|
|
}
|
|
|
|
IdentifierNode *function = parse_identifier();
|
|
|
|
if (check(GDScriptTokenizer::Token::EQUAL)) {
|
|
p_variable->property = VariableNode::PROP_SETGET;
|
|
} else {
|
|
p_variable->property = VariableNode::PROP_INLINE;
|
|
if (!p_need_indent) {
|
|
push_error("Property with inline code must go to an indented block.");
|
|
}
|
|
}
|
|
|
|
bool getter_used = false;
|
|
bool setter_used = false;
|
|
|
|
// Run with a loop because order doesn't matter.
|
|
for (int i = 0; i < 2; i++) {
|
|
if (function->name == SNAME("set")) {
|
|
if (setter_used) {
|
|
push_error(R"(Properties can only have one setter.)");
|
|
} else {
|
|
parse_property_setter(property);
|
|
setter_used = true;
|
|
}
|
|
} else if (function->name == SNAME("get")) {
|
|
if (getter_used) {
|
|
push_error(R"(Properties can only have one getter.)");
|
|
} else {
|
|
parse_property_getter(property);
|
|
getter_used = true;
|
|
}
|
|
} else {
|
|
// TODO: Update message to only have the missing one if it's the case.
|
|
push_error(R"(Expected "get" or "set" for property declaration.)");
|
|
}
|
|
|
|
if (i == 0 && p_variable->property == VariableNode::PROP_SETGET) {
|
|
if (match(GDScriptTokenizer::Token::COMMA)) {
|
|
// Consume potential newline.
|
|
if (match(GDScriptTokenizer::Token::NEWLINE)) {
|
|
if (!p_need_indent) {
|
|
push_error(R"(Inline setter/getter setting cannot span across multiple lines (use "\\"" if needed).)");
|
|
}
|
|
}
|
|
} else {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!match(GDScriptTokenizer::Token::IDENTIFIER)) {
|
|
break;
|
|
}
|
|
function = parse_identifier();
|
|
}
|
|
complete_extents(p_variable);
|
|
|
|
if (p_variable->property == VariableNode::PROP_SETGET) {
|
|
end_statement("property declaration");
|
|
}
|
|
|
|
if (p_need_indent) {
|
|
consume(GDScriptTokenizer::Token::DEDENT, R"(Expected end of indented block for property.)");
|
|
}
|
|
return property;
|
|
}
|
|
|
|
void GDScriptParser::parse_property_setter(VariableNode *p_variable) {
|
|
switch (p_variable->property) {
|
|
case VariableNode::PROP_INLINE: {
|
|
FunctionNode *function = alloc_node<FunctionNode>();
|
|
IdentifierNode *identifier = alloc_node<IdentifierNode>();
|
|
complete_extents(identifier);
|
|
identifier->name = "@" + p_variable->identifier->name + "_setter";
|
|
function->identifier = identifier;
|
|
function->is_static = p_variable->is_static;
|
|
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected "(" after "set".)");
|
|
|
|
ParameterNode *parameter = alloc_node<ParameterNode>();
|
|
if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected parameter name after "(".)")) {
|
|
reset_extents(parameter, previous);
|
|
p_variable->setter_parameter = parse_identifier();
|
|
parameter->identifier = p_variable->setter_parameter;
|
|
function->parameters_indices[parameter->identifier->name] = 0;
|
|
function->parameters.push_back(parameter);
|
|
}
|
|
complete_extents(parameter);
|
|
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected ")" after parameter name.)*");
|
|
consume(GDScriptTokenizer::Token::COLON, R"*(Expected ":" after ")".)*");
|
|
|
|
FunctionNode *previous_function = current_function;
|
|
current_function = function;
|
|
if (p_variable->setter_parameter != nullptr) {
|
|
SuiteNode *body = alloc_node<SuiteNode>();
|
|
body->add_local(parameter, function);
|
|
function->body = parse_suite("setter declaration", body);
|
|
p_variable->setter = function;
|
|
}
|
|
current_function = previous_function;
|
|
complete_extents(function);
|
|
break;
|
|
}
|
|
case VariableNode::PROP_SETGET:
|
|
consume(GDScriptTokenizer::Token::EQUAL, R"(Expected "=" after "set")");
|
|
make_completion_context(COMPLETION_PROPERTY_METHOD, p_variable);
|
|
if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected setter function name after "=".)")) {
|
|
p_variable->setter_pointer = parse_identifier();
|
|
}
|
|
break;
|
|
case VariableNode::PROP_NONE:
|
|
break; // Unreachable.
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::parse_property_getter(VariableNode *p_variable) {
|
|
switch (p_variable->property) {
|
|
case VariableNode::PROP_INLINE: {
|
|
FunctionNode *function = alloc_node<FunctionNode>();
|
|
|
|
if (match(GDScriptTokenizer::Token::PARENTHESIS_OPEN)) {
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected ")" after "get(".)*");
|
|
consume(GDScriptTokenizer::Token::COLON, R"*(Expected ":" after "get()".)*");
|
|
} else {
|
|
consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" or "(" after "get".)");
|
|
}
|
|
|
|
IdentifierNode *identifier = alloc_node<IdentifierNode>();
|
|
complete_extents(identifier);
|
|
identifier->name = "@" + p_variable->identifier->name + "_getter";
|
|
function->identifier = identifier;
|
|
function->is_static = p_variable->is_static;
|
|
|
|
FunctionNode *previous_function = current_function;
|
|
current_function = function;
|
|
|
|
SuiteNode *body = alloc_node<SuiteNode>();
|
|
function->body = parse_suite("getter declaration", body);
|
|
p_variable->getter = function;
|
|
|
|
current_function = previous_function;
|
|
complete_extents(function);
|
|
break;
|
|
}
|
|
case VariableNode::PROP_SETGET:
|
|
consume(GDScriptTokenizer::Token::EQUAL, R"(Expected "=" after "get")");
|
|
make_completion_context(COMPLETION_PROPERTY_METHOD, p_variable);
|
|
if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected getter function name after "=".)")) {
|
|
p_variable->getter_pointer = parse_identifier();
|
|
}
|
|
break;
|
|
case VariableNode::PROP_NONE:
|
|
break; // Unreachable.
|
|
}
|
|
}
|
|
|
|
GDScriptParser::ConstantNode *GDScriptParser::parse_constant(bool p_is_static) {
|
|
ConstantNode *constant = alloc_node<ConstantNode>();
|
|
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected constant name after "const".)")) {
|
|
complete_extents(constant);
|
|
return nullptr;
|
|
}
|
|
|
|
constant->identifier = parse_identifier();
|
|
|
|
if (match(GDScriptTokenizer::Token::COLON)) {
|
|
if (check((GDScriptTokenizer::Token::EQUAL))) {
|
|
// Infer type.
|
|
constant->infer_datatype = true;
|
|
} else {
|
|
// Parse type.
|
|
constant->datatype_specifier = parse_type();
|
|
}
|
|
}
|
|
|
|
if (consume(GDScriptTokenizer::Token::EQUAL, R"(Expected initializer after constant name.)")) {
|
|
// Initializer.
|
|
constant->initializer = parse_expression(false);
|
|
|
|
if (constant->initializer == nullptr) {
|
|
push_error(R"(Expected initializer expression for constant.)");
|
|
complete_extents(constant);
|
|
return nullptr;
|
|
}
|
|
} else {
|
|
complete_extents(constant);
|
|
return nullptr;
|
|
}
|
|
|
|
complete_extents(constant);
|
|
end_statement("constant declaration");
|
|
|
|
return constant;
|
|
}
|
|
|
|
GDScriptParser::ParameterNode *GDScriptParser::parse_parameter() {
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected parameter name.)")) {
|
|
return nullptr;
|
|
}
|
|
|
|
ParameterNode *parameter = alloc_node<ParameterNode>();
|
|
parameter->identifier = parse_identifier();
|
|
|
|
if (match(GDScriptTokenizer::Token::COLON)) {
|
|
if (check((GDScriptTokenizer::Token::EQUAL))) {
|
|
// Infer type.
|
|
parameter->infer_datatype = true;
|
|
} else {
|
|
// Parse type.
|
|
make_completion_context(COMPLETION_TYPE_NAME, parameter);
|
|
parameter->datatype_specifier = parse_type();
|
|
}
|
|
}
|
|
|
|
if (match(GDScriptTokenizer::Token::EQUAL)) {
|
|
// Default value.
|
|
parameter->initializer = parse_expression(false);
|
|
}
|
|
|
|
complete_extents(parameter);
|
|
return parameter;
|
|
}
|
|
|
|
GDScriptParser::SignalNode *GDScriptParser::parse_signal(bool p_is_static) {
|
|
SignalNode *signal = alloc_node<SignalNode>();
|
|
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected signal name after "signal".)")) {
|
|
complete_extents(signal);
|
|
return nullptr;
|
|
}
|
|
|
|
signal->identifier = parse_identifier();
|
|
|
|
if (check(GDScriptTokenizer::Token::PARENTHESIS_OPEN)) {
|
|
push_multiline(true);
|
|
advance();
|
|
do {
|
|
if (check(GDScriptTokenizer::Token::PARENTHESIS_CLOSE)) {
|
|
// Allow for trailing comma.
|
|
break;
|
|
}
|
|
|
|
ParameterNode *parameter = parse_parameter();
|
|
if (parameter == nullptr) {
|
|
push_error("Expected signal parameter name.");
|
|
break;
|
|
}
|
|
if (parameter->initializer != nullptr) {
|
|
push_error(R"(Signal parameters cannot have a default value.)");
|
|
}
|
|
if (signal->parameters_indices.has(parameter->identifier->name)) {
|
|
push_error(vformat(R"(Parameter with name "%s" was already declared for this signal.)", parameter->identifier->name));
|
|
} else {
|
|
signal->parameters_indices[parameter->identifier->name] = signal->parameters.size();
|
|
signal->parameters.push_back(parameter);
|
|
}
|
|
} while (match(GDScriptTokenizer::Token::COMMA) && !is_at_end());
|
|
|
|
pop_multiline();
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected closing ")" after signal parameters.)*");
|
|
}
|
|
|
|
complete_extents(signal);
|
|
end_statement("signal declaration");
|
|
|
|
return signal;
|
|
}
|
|
|
|
GDScriptParser::EnumNode *GDScriptParser::parse_enum(bool p_is_static) {
|
|
EnumNode *enum_node = alloc_node<EnumNode>();
|
|
bool named = false;
|
|
|
|
if (match(GDScriptTokenizer::Token::IDENTIFIER)) {
|
|
enum_node->identifier = parse_identifier();
|
|
named = true;
|
|
}
|
|
|
|
push_multiline(true);
|
|
consume(GDScriptTokenizer::Token::BRACE_OPEN, vformat(R"(Expected "{" after %s.)", named ? "enum name" : R"("enum")"));
|
|
#ifdef TOOLS_ENABLED
|
|
int min_enum_value_doc_line = previous.end_line + 1;
|
|
#endif
|
|
|
|
HashMap<StringName, int> elements;
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
List<MethodInfo> gdscript_funcs;
|
|
GDScriptLanguage::get_singleton()->get_public_functions(&gdscript_funcs);
|
|
#endif
|
|
|
|
do {
|
|
if (check(GDScriptTokenizer::Token::BRACE_CLOSE)) {
|
|
break; // Allow trailing comma.
|
|
}
|
|
if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected identifier for enum key.)")) {
|
|
GDScriptParser::IdentifierNode *identifier = parse_identifier();
|
|
|
|
EnumNode::Value item;
|
|
item.identifier = identifier;
|
|
item.parent_enum = enum_node;
|
|
item.line = previous.start_line;
|
|
item.leftmost_column = previous.leftmost_column;
|
|
item.rightmost_column = previous.rightmost_column;
|
|
|
|
if (elements.has(item.identifier->name)) {
|
|
push_error(vformat(R"(Name "%s" was already in this enum (at line %d).)", item.identifier->name, elements[item.identifier->name]), item.identifier);
|
|
} else if (!named) {
|
|
if (current_class->members_indices.has(item.identifier->name)) {
|
|
push_error(vformat(R"(Name "%s" is already used as a class %s.)", item.identifier->name, current_class->get_member(item.identifier->name).get_type_name()));
|
|
}
|
|
}
|
|
|
|
elements[item.identifier->name] = item.line;
|
|
|
|
if (match(GDScriptTokenizer::Token::EQUAL)) {
|
|
ExpressionNode *value = parse_expression(false);
|
|
if (value == nullptr) {
|
|
push_error(R"(Expected expression value after "=".)");
|
|
}
|
|
item.custom_value = value;
|
|
}
|
|
|
|
item.index = enum_node->values.size();
|
|
enum_node->values.push_back(item);
|
|
if (!named) {
|
|
// Add as member of current class.
|
|
current_class->add_member(item);
|
|
}
|
|
}
|
|
} while (match(GDScriptTokenizer::Token::COMMA));
|
|
|
|
#ifdef TOOLS_ENABLED
|
|
// Enum values documentation.
|
|
for (int i = 0; i < enum_node->values.size(); i++) {
|
|
int enum_value_line = enum_node->values[i].line;
|
|
int doc_comment_line = enum_value_line - 1;
|
|
|
|
MemberDocData doc_data;
|
|
if (has_comment(enum_value_line, true)) {
|
|
// Inline doc comment.
|
|
if (i == enum_node->values.size() - 1 || enum_node->values[i + 1].line > enum_value_line) {
|
|
doc_data = parse_doc_comment(enum_value_line, true);
|
|
}
|
|
} else if (doc_comment_line >= min_enum_value_doc_line && has_comment(doc_comment_line, true) && tokenizer->get_comments()[doc_comment_line].new_line) {
|
|
// Normal doc comment.
|
|
doc_data = parse_doc_comment(doc_comment_line);
|
|
}
|
|
|
|
if (named) {
|
|
enum_node->values.write[i].doc_data = doc_data;
|
|
} else {
|
|
current_class->set_enum_value_doc_data(enum_node->values[i].identifier->name, doc_data);
|
|
}
|
|
|
|
min_enum_value_doc_line = enum_value_line + 1; // Prevent multiple enum values from using the same doc comment.
|
|
}
|
|
#endif // TOOLS_ENABLED
|
|
|
|
pop_multiline();
|
|
consume(GDScriptTokenizer::Token::BRACE_CLOSE, R"(Expected closing "}" for enum.)");
|
|
complete_extents(enum_node);
|
|
end_statement("enum");
|
|
|
|
return enum_node;
|
|
}
|
|
|
|
void GDScriptParser::parse_function_signature(FunctionNode *p_function, SuiteNode *p_body, const String &p_type) {
|
|
if (!check(GDScriptTokenizer::Token::PARENTHESIS_CLOSE) && !is_at_end()) {
|
|
bool default_used = false;
|
|
do {
|
|
if (check(GDScriptTokenizer::Token::PARENTHESIS_CLOSE)) {
|
|
// Allow for trailing comma.
|
|
break;
|
|
}
|
|
ParameterNode *parameter = parse_parameter();
|
|
if (parameter == nullptr) {
|
|
break;
|
|
}
|
|
if (parameter->initializer != nullptr) {
|
|
default_used = true;
|
|
} else {
|
|
if (default_used) {
|
|
push_error("Cannot have mandatory parameters after optional parameters.");
|
|
continue;
|
|
}
|
|
}
|
|
if (p_function->parameters_indices.has(parameter->identifier->name)) {
|
|
push_error(vformat(R"(Parameter with name "%s" was already declared for this %s.)", parameter->identifier->name, p_type));
|
|
} else {
|
|
p_function->parameters_indices[parameter->identifier->name] = p_function->parameters.size();
|
|
p_function->parameters.push_back(parameter);
|
|
p_body->add_local(parameter, current_function);
|
|
}
|
|
} while (match(GDScriptTokenizer::Token::COMMA));
|
|
}
|
|
|
|
pop_multiline();
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, vformat(R"*(Expected closing ")" after %s parameters.)*", p_type));
|
|
|
|
if (match(GDScriptTokenizer::Token::FORWARD_ARROW)) {
|
|
make_completion_context(COMPLETION_TYPE_NAME_OR_VOID, p_function);
|
|
p_function->return_type = parse_type(true);
|
|
if (p_function->return_type == nullptr) {
|
|
push_error(R"(Expected return type or "void" after "->".)");
|
|
}
|
|
}
|
|
|
|
if (!p_function->source_lambda && p_function->identifier && p_function->identifier->name == GDScriptLanguage::get_singleton()->strings._static_init) {
|
|
if (!p_function->is_static) {
|
|
push_error(R"(Static constructor must be declared static.)");
|
|
}
|
|
if (p_function->parameters.size() != 0) {
|
|
push_error(R"(Static constructor cannot have parameters.)");
|
|
}
|
|
current_class->has_static_data = true;
|
|
}
|
|
|
|
// TODO: Improve token consumption so it synchronizes to a statement boundary. This way we can get into the function body with unrecognized tokens.
|
|
consume(GDScriptTokenizer::Token::COLON, vformat(R"(Expected ":" after %s declaration.)", p_type));
|
|
}
|
|
|
|
GDScriptParser::FunctionNode *GDScriptParser::parse_function(bool p_is_static) {
|
|
FunctionNode *function = alloc_node<FunctionNode>();
|
|
|
|
make_completion_context(COMPLETION_OVERRIDE_METHOD, function);
|
|
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected function name after "func".)")) {
|
|
complete_extents(function);
|
|
return nullptr;
|
|
}
|
|
|
|
FunctionNode *previous_function = current_function;
|
|
current_function = function;
|
|
|
|
function->identifier = parse_identifier();
|
|
function->is_static = p_is_static;
|
|
|
|
SuiteNode *body = alloc_node<SuiteNode>();
|
|
SuiteNode *previous_suite = current_suite;
|
|
current_suite = body;
|
|
|
|
push_multiline(true);
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected opening "(" after function name.)");
|
|
parse_function_signature(function, body, "function");
|
|
|
|
current_suite = previous_suite;
|
|
function->body = parse_suite("function declaration", body);
|
|
|
|
current_function = previous_function;
|
|
complete_extents(function);
|
|
return function;
|
|
}
|
|
|
|
GDScriptParser::AnnotationNode *GDScriptParser::parse_annotation(uint32_t p_valid_targets) {
|
|
AnnotationNode *annotation = alloc_node<AnnotationNode>();
|
|
|
|
annotation->name = previous.literal;
|
|
|
|
make_completion_context(COMPLETION_ANNOTATION, annotation);
|
|
|
|
bool valid = true;
|
|
|
|
if (!valid_annotations.has(annotation->name)) {
|
|
push_error(vformat(R"(Unrecognized annotation: "%s".)", annotation->name));
|
|
valid = false;
|
|
}
|
|
|
|
annotation->info = &valid_annotations[annotation->name];
|
|
|
|
if (!annotation->applies_to(p_valid_targets)) {
|
|
if (annotation->applies_to(AnnotationInfo::SCRIPT)) {
|
|
push_error(vformat(R"(Annotation "%s" must be at the top of the script, before "extends" and "class_name".)", annotation->name));
|
|
} else {
|
|
push_error(vformat(R"(Annotation "%s" is not allowed in this level.)", annotation->name));
|
|
}
|
|
valid = false;
|
|
}
|
|
|
|
if (check(GDScriptTokenizer::Token::PARENTHESIS_OPEN)) {
|
|
push_multiline(true);
|
|
advance();
|
|
// Arguments.
|
|
push_completion_call(annotation);
|
|
make_completion_context(COMPLETION_ANNOTATION_ARGUMENTS, annotation, 0);
|
|
int argument_index = 0;
|
|
do {
|
|
if (check(GDScriptTokenizer::Token::PARENTHESIS_CLOSE)) {
|
|
// Allow for trailing comma.
|
|
break;
|
|
}
|
|
|
|
make_completion_context(COMPLETION_ANNOTATION_ARGUMENTS, annotation, argument_index);
|
|
set_last_completion_call_arg(argument_index++);
|
|
ExpressionNode *argument = parse_expression(false);
|
|
if (argument == nullptr) {
|
|
push_error("Expected expression as the annotation argument.");
|
|
valid = false;
|
|
continue;
|
|
}
|
|
annotation->arguments.push_back(argument);
|
|
} while (match(GDScriptTokenizer::Token::COMMA) && !is_at_end());
|
|
|
|
pop_multiline();
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected ")" after annotation arguments.)*");
|
|
pop_completion_call();
|
|
}
|
|
complete_extents(annotation);
|
|
|
|
match(GDScriptTokenizer::Token::NEWLINE); // Newline after annotation is optional.
|
|
|
|
if (valid) {
|
|
valid = validate_annotation_arguments(annotation);
|
|
}
|
|
|
|
return valid ? annotation : nullptr;
|
|
}
|
|
|
|
void GDScriptParser::clear_unused_annotations() {
|
|
for (const AnnotationNode *annotation : annotation_stack) {
|
|
push_error(vformat(R"(Annotation "%s" does not precede a valid target, so it will have no effect.)", annotation->name), annotation);
|
|
}
|
|
|
|
annotation_stack.clear();
|
|
}
|
|
|
|
bool GDScriptParser::register_annotation(const MethodInfo &p_info, uint32_t p_target_kinds, AnnotationAction p_apply, const Vector<Variant> &p_default_arguments, bool p_is_vararg) {
|
|
ERR_FAIL_COND_V_MSG(valid_annotations.has(p_info.name), false, vformat(R"(Annotation "%s" already registered.)", p_info.name));
|
|
|
|
AnnotationInfo new_annotation;
|
|
new_annotation.info = p_info;
|
|
new_annotation.info.default_arguments = p_default_arguments;
|
|
if (p_is_vararg) {
|
|
new_annotation.info.flags |= METHOD_FLAG_VARARG;
|
|
}
|
|
new_annotation.apply = p_apply;
|
|
new_annotation.target_kind = p_target_kinds;
|
|
|
|
valid_annotations[p_info.name] = new_annotation;
|
|
return true;
|
|
}
|
|
|
|
GDScriptParser::SuiteNode *GDScriptParser::parse_suite(const String &p_context, SuiteNode *p_suite, bool p_for_lambda) {
|
|
SuiteNode *suite = p_suite != nullptr ? p_suite : alloc_node<SuiteNode>();
|
|
suite->parent_block = current_suite;
|
|
suite->parent_function = current_function;
|
|
current_suite = suite;
|
|
|
|
if (!p_for_lambda && suite->parent_block != nullptr && suite->parent_block->is_in_loop) {
|
|
// Do not reset to false if true is set before calling parse_suite().
|
|
suite->is_in_loop = true;
|
|
}
|
|
|
|
bool multiline = false;
|
|
|
|
if (match(GDScriptTokenizer::Token::NEWLINE)) {
|
|
multiline = true;
|
|
}
|
|
|
|
if (multiline) {
|
|
if (!consume(GDScriptTokenizer::Token::INDENT, vformat(R"(Expected indented block after %s.)", p_context))) {
|
|
current_suite = suite->parent_block;
|
|
complete_extents(suite);
|
|
return suite;
|
|
}
|
|
}
|
|
reset_extents(suite, current);
|
|
|
|
int error_count = 0;
|
|
|
|
do {
|
|
if (is_at_end() || (!multiline && previous.type == GDScriptTokenizer::Token::SEMICOLON && check(GDScriptTokenizer::Token::NEWLINE))) {
|
|
break;
|
|
}
|
|
Node *statement = parse_statement();
|
|
if (statement == nullptr) {
|
|
if (error_count++ > 100) {
|
|
push_error("Too many statement errors.", suite);
|
|
break;
|
|
}
|
|
continue;
|
|
}
|
|
suite->statements.push_back(statement);
|
|
|
|
// Register locals.
|
|
switch (statement->type) {
|
|
case Node::VARIABLE: {
|
|
VariableNode *variable = static_cast<VariableNode *>(statement);
|
|
const SuiteNode::Local &local = current_suite->get_local(variable->identifier->name);
|
|
if (local.type != SuiteNode::Local::UNDEFINED) {
|
|
push_error(vformat(R"(There is already a %s named "%s" declared in this scope.)", local.get_name(), variable->identifier->name), variable->identifier);
|
|
}
|
|
current_suite->add_local(variable, current_function);
|
|
break;
|
|
}
|
|
case Node::CONSTANT: {
|
|
ConstantNode *constant = static_cast<ConstantNode *>(statement);
|
|
const SuiteNode::Local &local = current_suite->get_local(constant->identifier->name);
|
|
if (local.type != SuiteNode::Local::UNDEFINED) {
|
|
String name;
|
|
if (local.type == SuiteNode::Local::CONSTANT) {
|
|
name = "constant";
|
|
} else {
|
|
name = "variable";
|
|
}
|
|
push_error(vformat(R"(There is already a %s named "%s" declared in this scope.)", name, constant->identifier->name), constant->identifier);
|
|
}
|
|
current_suite->add_local(constant, current_function);
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
|
|
} while ((multiline || previous.type == GDScriptTokenizer::Token::SEMICOLON) && !check(GDScriptTokenizer::Token::DEDENT) && !lambda_ended && !is_at_end());
|
|
|
|
complete_extents(suite);
|
|
|
|
if (multiline) {
|
|
if (!lambda_ended) {
|
|
consume(GDScriptTokenizer::Token::DEDENT, vformat(R"(Missing unindent at the end of %s.)", p_context));
|
|
|
|
} else {
|
|
match(GDScriptTokenizer::Token::DEDENT);
|
|
}
|
|
} else if (previous.type == GDScriptTokenizer::Token::SEMICOLON) {
|
|
consume(GDScriptTokenizer::Token::NEWLINE, vformat(R"(Expected newline after ";" at the end of %s.)", p_context));
|
|
}
|
|
|
|
if (p_for_lambda) {
|
|
lambda_ended = true;
|
|
}
|
|
current_suite = suite->parent_block;
|
|
return suite;
|
|
}
|
|
|
|
GDScriptParser::Node *GDScriptParser::parse_statement() {
|
|
Node *result = nullptr;
|
|
#ifdef DEBUG_ENABLED
|
|
bool unreachable = current_suite->has_return && !current_suite->has_unreachable_code;
|
|
#endif
|
|
|
|
List<AnnotationNode *> annotations;
|
|
if (current.type != GDScriptTokenizer::Token::ANNOTATION) {
|
|
while (!annotation_stack.is_empty()) {
|
|
AnnotationNode *last_annotation = annotation_stack.back()->get();
|
|
if (last_annotation->applies_to(AnnotationInfo::STATEMENT)) {
|
|
annotations.push_front(last_annotation);
|
|
annotation_stack.pop_back();
|
|
} else {
|
|
push_error(vformat(R"(Annotation "%s" cannot be applied to a statement.)", last_annotation->name));
|
|
clear_unused_annotations();
|
|
}
|
|
}
|
|
}
|
|
|
|
switch (current.type) {
|
|
case GDScriptTokenizer::Token::PASS:
|
|
advance();
|
|
result = alloc_node<PassNode>();
|
|
complete_extents(result);
|
|
end_statement(R"("pass")");
|
|
break;
|
|
case GDScriptTokenizer::Token::VAR:
|
|
advance();
|
|
result = parse_variable(false, false);
|
|
break;
|
|
case GDScriptTokenizer::Token::CONST:
|
|
advance();
|
|
result = parse_constant(false);
|
|
break;
|
|
case GDScriptTokenizer::Token::IF:
|
|
advance();
|
|
result = parse_if();
|
|
break;
|
|
case GDScriptTokenizer::Token::FOR:
|
|
advance();
|
|
result = parse_for();
|
|
break;
|
|
case GDScriptTokenizer::Token::WHILE:
|
|
advance();
|
|
result = parse_while();
|
|
break;
|
|
case GDScriptTokenizer::Token::MATCH:
|
|
advance();
|
|
result = parse_match();
|
|
break;
|
|
case GDScriptTokenizer::Token::BREAK:
|
|
advance();
|
|
result = parse_break();
|
|
break;
|
|
case GDScriptTokenizer::Token::CONTINUE:
|
|
advance();
|
|
result = parse_continue();
|
|
break;
|
|
case GDScriptTokenizer::Token::RETURN: {
|
|
advance();
|
|
ReturnNode *n_return = alloc_node<ReturnNode>();
|
|
if (!is_statement_end()) {
|
|
if (current_function && (current_function->identifier->name == GDScriptLanguage::get_singleton()->strings._init || current_function->identifier->name == GDScriptLanguage::get_singleton()->strings._static_init)) {
|
|
push_error(R"(Constructor cannot return a value.)");
|
|
}
|
|
n_return->return_value = parse_expression(false);
|
|
} else if (in_lambda && !is_statement_end_token()) {
|
|
// Try to parse it anyway as this might not be the statement end in a lambda.
|
|
// If this fails the expression will be nullptr, but that's the same as no return, so it's fine.
|
|
n_return->return_value = parse_expression(false);
|
|
}
|
|
complete_extents(n_return);
|
|
result = n_return;
|
|
|
|
current_suite->has_return = true;
|
|
|
|
end_statement("return statement");
|
|
break;
|
|
}
|
|
case GDScriptTokenizer::Token::BREAKPOINT:
|
|
advance();
|
|
result = alloc_node<BreakpointNode>();
|
|
complete_extents(result);
|
|
end_statement(R"("breakpoint")");
|
|
break;
|
|
case GDScriptTokenizer::Token::ASSERT:
|
|
advance();
|
|
result = parse_assert();
|
|
break;
|
|
case GDScriptTokenizer::Token::ANNOTATION: {
|
|
advance();
|
|
AnnotationNode *annotation = parse_annotation(AnnotationInfo::STATEMENT);
|
|
if (annotation != nullptr) {
|
|
annotation_stack.push_back(annotation);
|
|
}
|
|
break;
|
|
}
|
|
default: {
|
|
// Expression statement.
|
|
ExpressionNode *expression = parse_expression(true); // Allow assignment here.
|
|
bool has_ended_lambda = false;
|
|
if (expression == nullptr) {
|
|
if (in_lambda) {
|
|
// If it's not a valid expression beginning, it might be the continuation of the outer expression where this lambda is.
|
|
lambda_ended = true;
|
|
has_ended_lambda = true;
|
|
} else {
|
|
advance();
|
|
push_error(vformat(R"(Expected statement, found "%s" instead.)", previous.get_name()));
|
|
}
|
|
} else {
|
|
end_statement("expression");
|
|
}
|
|
lambda_ended = lambda_ended || has_ended_lambda;
|
|
result = expression;
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
if (expression != nullptr) {
|
|
switch (expression->type) {
|
|
case Node::ASSIGNMENT:
|
|
case Node::AWAIT:
|
|
case Node::CALL:
|
|
// Fine.
|
|
break;
|
|
case Node::PRELOAD:
|
|
// `preload` is a function-like keyword.
|
|
push_warning(expression, GDScriptWarning::RETURN_VALUE_DISCARDED, "preload");
|
|
break;
|
|
case Node::LAMBDA:
|
|
// Standalone lambdas can't be used, so make this an error.
|
|
push_error("Standalone lambdas cannot be accessed. Consider assigning it to a variable.", expression);
|
|
break;
|
|
case Node::LITERAL:
|
|
// Allow strings as multiline comments.
|
|
if (static_cast<GDScriptParser::LiteralNode *>(expression)->value.get_type() != Variant::STRING) {
|
|
push_warning(expression, GDScriptWarning::STANDALONE_EXPRESSION);
|
|
}
|
|
break;
|
|
case Node::TERNARY_OPERATOR:
|
|
push_warning(expression, GDScriptWarning::STANDALONE_TERNARY);
|
|
break;
|
|
default:
|
|
push_warning(expression, GDScriptWarning::STANDALONE_EXPRESSION);
|
|
}
|
|
}
|
|
#endif
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (result != nullptr && !annotations.is_empty()) {
|
|
for (AnnotationNode *&annotation : annotations) {
|
|
result->annotations.push_back(annotation);
|
|
}
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
if (unreachable && result != nullptr) {
|
|
current_suite->has_unreachable_code = true;
|
|
if (current_function) {
|
|
push_warning(result, GDScriptWarning::UNREACHABLE_CODE, current_function->identifier ? current_function->identifier->name : "<anonymous lambda>");
|
|
} else {
|
|
// TODO: Properties setters and getters with unreachable code are not being warned
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (panic_mode) {
|
|
synchronize();
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
GDScriptParser::AssertNode *GDScriptParser::parse_assert() {
|
|
// TODO: Add assert message.
|
|
AssertNode *assert = alloc_node<AssertNode>();
|
|
|
|
push_multiline(true);
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected "(" after "assert".)");
|
|
|
|
assert->condition = parse_expression(false);
|
|
if (assert->condition == nullptr) {
|
|
push_error("Expected expression to assert.");
|
|
pop_multiline();
|
|
complete_extents(assert);
|
|
return nullptr;
|
|
}
|
|
|
|
if (match(GDScriptTokenizer::Token::COMMA) && !check(GDScriptTokenizer::Token::PARENTHESIS_CLOSE)) {
|
|
assert->message = parse_expression(false);
|
|
if (assert->message == nullptr) {
|
|
push_error(R"(Expected error message for assert after ",".)");
|
|
pop_multiline();
|
|
complete_extents(assert);
|
|
return nullptr;
|
|
}
|
|
match(GDScriptTokenizer::Token::COMMA);
|
|
}
|
|
|
|
pop_multiline();
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected ")" after assert expression.)*");
|
|
|
|
complete_extents(assert);
|
|
end_statement(R"("assert")");
|
|
|
|
return assert;
|
|
}
|
|
|
|
GDScriptParser::BreakNode *GDScriptParser::parse_break() {
|
|
if (!can_break) {
|
|
push_error(R"(Cannot use "break" outside of a loop.)");
|
|
}
|
|
BreakNode *break_node = alloc_node<BreakNode>();
|
|
complete_extents(break_node);
|
|
end_statement(R"("break")");
|
|
return break_node;
|
|
}
|
|
|
|
GDScriptParser::ContinueNode *GDScriptParser::parse_continue() {
|
|
if (!can_continue) {
|
|
push_error(R"(Cannot use "continue" outside of a loop.)");
|
|
}
|
|
current_suite->has_continue = true;
|
|
ContinueNode *cont = alloc_node<ContinueNode>();
|
|
complete_extents(cont);
|
|
end_statement(R"("continue")");
|
|
return cont;
|
|
}
|
|
|
|
GDScriptParser::ForNode *GDScriptParser::parse_for() {
|
|
ForNode *n_for = alloc_node<ForNode>();
|
|
|
|
if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected loop variable name after "for".)")) {
|
|
n_for->variable = parse_identifier();
|
|
}
|
|
|
|
if (match(GDScriptTokenizer::Token::COLON)) {
|
|
n_for->datatype_specifier = parse_type();
|
|
if (n_for->datatype_specifier == nullptr) {
|
|
push_error(R"(Expected type specifier after ":".)");
|
|
}
|
|
}
|
|
|
|
if (n_for->datatype_specifier == nullptr) {
|
|
consume(GDScriptTokenizer::Token::IN, R"(Expected "in" or ":" after "for" variable name.)");
|
|
} else {
|
|
consume(GDScriptTokenizer::Token::IN, R"(Expected "in" after "for" variable type specifier.)");
|
|
}
|
|
|
|
n_for->list = parse_expression(false);
|
|
|
|
if (!n_for->list) {
|
|
push_error(R"(Expected iterable after "in".)");
|
|
}
|
|
|
|
consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after "for" condition.)");
|
|
|
|
// Save break/continue state.
|
|
bool could_break = can_break;
|
|
bool could_continue = can_continue;
|
|
|
|
// Allow break/continue.
|
|
can_break = true;
|
|
can_continue = true;
|
|
|
|
SuiteNode *suite = alloc_node<SuiteNode>();
|
|
if (n_for->variable) {
|
|
const SuiteNode::Local &local = current_suite->get_local(n_for->variable->name);
|
|
if (local.type != SuiteNode::Local::UNDEFINED) {
|
|
push_error(vformat(R"(There is already a %s named "%s" declared in this scope.)", local.get_name(), n_for->variable->name), n_for->variable);
|
|
}
|
|
suite->add_local(SuiteNode::Local(n_for->variable, current_function));
|
|
}
|
|
suite->is_in_loop = true;
|
|
n_for->loop = parse_suite(R"("for" block)", suite);
|
|
complete_extents(n_for);
|
|
|
|
// Reset break/continue state.
|
|
can_break = could_break;
|
|
can_continue = could_continue;
|
|
|
|
return n_for;
|
|
}
|
|
|
|
GDScriptParser::IfNode *GDScriptParser::parse_if(const String &p_token) {
|
|
IfNode *n_if = alloc_node<IfNode>();
|
|
|
|
n_if->condition = parse_expression(false);
|
|
if (n_if->condition == nullptr) {
|
|
push_error(vformat(R"(Expected conditional expression after "%s".)", p_token));
|
|
}
|
|
|
|
consume(GDScriptTokenizer::Token::COLON, vformat(R"(Expected ":" after "%s" condition.)", p_token));
|
|
|
|
n_if->true_block = parse_suite(vformat(R"("%s" block)", p_token));
|
|
n_if->true_block->parent_if = n_if;
|
|
|
|
if (n_if->true_block->has_continue) {
|
|
current_suite->has_continue = true;
|
|
}
|
|
|
|
if (match(GDScriptTokenizer::Token::ELIF)) {
|
|
SuiteNode *else_block = alloc_node<SuiteNode>();
|
|
else_block->parent_function = current_function;
|
|
else_block->parent_block = current_suite;
|
|
|
|
SuiteNode *previous_suite = current_suite;
|
|
current_suite = else_block;
|
|
|
|
IfNode *elif = parse_if("elif");
|
|
else_block->statements.push_back(elif);
|
|
complete_extents(else_block);
|
|
n_if->false_block = else_block;
|
|
|
|
current_suite = previous_suite;
|
|
} else if (match(GDScriptTokenizer::Token::ELSE)) {
|
|
consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after "else".)");
|
|
n_if->false_block = parse_suite(R"("else" block)");
|
|
}
|
|
complete_extents(n_if);
|
|
|
|
if (n_if->false_block != nullptr && n_if->false_block->has_return && n_if->true_block->has_return) {
|
|
current_suite->has_return = true;
|
|
}
|
|
if (n_if->false_block != nullptr && n_if->false_block->has_continue) {
|
|
current_suite->has_continue = true;
|
|
}
|
|
|
|
return n_if;
|
|
}
|
|
|
|
GDScriptParser::MatchNode *GDScriptParser::parse_match() {
|
|
MatchNode *match_node = alloc_node<MatchNode>();
|
|
|
|
match_node->test = parse_expression(false);
|
|
if (match_node->test == nullptr) {
|
|
push_error(R"(Expected expression to test after "match".)");
|
|
}
|
|
|
|
consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after "match" expression.)");
|
|
consume(GDScriptTokenizer::Token::NEWLINE, R"(Expected a newline after "match" statement.)");
|
|
|
|
if (!consume(GDScriptTokenizer::Token::INDENT, R"(Expected an indented block after "match" statement.)")) {
|
|
complete_extents(match_node);
|
|
return match_node;
|
|
}
|
|
|
|
bool all_have_return = true;
|
|
bool have_wildcard = false;
|
|
|
|
List<AnnotationNode *> match_branch_annotation_stack;
|
|
|
|
while (!check(GDScriptTokenizer::Token::DEDENT) && !is_at_end()) {
|
|
if (match(GDScriptTokenizer::Token::PASS)) {
|
|
consume(GDScriptTokenizer::Token::NEWLINE, R"(Expected newline after "pass".)");
|
|
continue;
|
|
}
|
|
|
|
if (match(GDScriptTokenizer::Token::ANNOTATION)) {
|
|
AnnotationNode *annotation = parse_annotation(AnnotationInfo::STATEMENT);
|
|
if (annotation == nullptr) {
|
|
continue;
|
|
}
|
|
if (annotation->name != SNAME("@warning_ignore")) {
|
|
push_error(vformat(R"(Annotation "%s" is not allowed in this level.)", annotation->name), annotation);
|
|
continue;
|
|
}
|
|
match_branch_annotation_stack.push_back(annotation);
|
|
continue;
|
|
}
|
|
|
|
MatchBranchNode *branch = parse_match_branch();
|
|
if (branch == nullptr) {
|
|
advance();
|
|
continue;
|
|
}
|
|
|
|
for (AnnotationNode *annotation : match_branch_annotation_stack) {
|
|
branch->annotations.push_back(annotation);
|
|
}
|
|
match_branch_annotation_stack.clear();
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
if (have_wildcard && !branch->patterns.is_empty()) {
|
|
push_warning(branch->patterns[0], GDScriptWarning::UNREACHABLE_PATTERN);
|
|
}
|
|
#endif
|
|
|
|
have_wildcard = have_wildcard || branch->has_wildcard;
|
|
all_have_return = all_have_return && branch->block->has_return;
|
|
match_node->branches.push_back(branch);
|
|
}
|
|
complete_extents(match_node);
|
|
|
|
consume(GDScriptTokenizer::Token::DEDENT, R"(Expected an indented block after "match" statement.)");
|
|
|
|
if (all_have_return && have_wildcard) {
|
|
current_suite->has_return = true;
|
|
}
|
|
|
|
for (const AnnotationNode *annotation : match_branch_annotation_stack) {
|
|
push_error(vformat(R"(Annotation "%s" does not precede a valid target, so it will have no effect.)", annotation->name), annotation);
|
|
}
|
|
match_branch_annotation_stack.clear();
|
|
|
|
return match_node;
|
|
}
|
|
|
|
GDScriptParser::MatchBranchNode *GDScriptParser::parse_match_branch() {
|
|
MatchBranchNode *branch = alloc_node<MatchBranchNode>();
|
|
reset_extents(branch, current);
|
|
|
|
bool has_bind = false;
|
|
|
|
do {
|
|
PatternNode *pattern = parse_match_pattern();
|
|
if (pattern == nullptr) {
|
|
continue;
|
|
}
|
|
if (pattern->binds.size() > 0) {
|
|
has_bind = true;
|
|
}
|
|
if (branch->patterns.size() > 0 && has_bind) {
|
|
push_error(R"(Cannot use a variable bind with multiple patterns.)");
|
|
}
|
|
if (pattern->pattern_type == PatternNode::PT_REST) {
|
|
push_error(R"(Rest pattern can only be used inside array and dictionary patterns.)");
|
|
} else if (pattern->pattern_type == PatternNode::PT_BIND || pattern->pattern_type == PatternNode::PT_WILDCARD) {
|
|
branch->has_wildcard = true;
|
|
}
|
|
branch->patterns.push_back(pattern);
|
|
} while (match(GDScriptTokenizer::Token::COMMA));
|
|
|
|
if (branch->patterns.is_empty()) {
|
|
push_error(R"(No pattern found for "match" branch.)");
|
|
}
|
|
|
|
bool has_guard = false;
|
|
if (match(GDScriptTokenizer::Token::WHEN)) {
|
|
// Pattern guard.
|
|
// Create block for guard because it also needs to access the bound variables from patterns, and we don't want to add them to the outer scope.
|
|
branch->guard_body = alloc_node<SuiteNode>();
|
|
if (branch->patterns.size() > 0) {
|
|
for (const KeyValue<StringName, IdentifierNode *> &E : branch->patterns[0]->binds) {
|
|
SuiteNode::Local local(E.value, current_function);
|
|
local.type = SuiteNode::Local::PATTERN_BIND;
|
|
branch->guard_body->add_local(local);
|
|
}
|
|
}
|
|
|
|
SuiteNode *parent_block = current_suite;
|
|
branch->guard_body->parent_block = parent_block;
|
|
current_suite = branch->guard_body;
|
|
|
|
ExpressionNode *guard = parse_expression(false);
|
|
if (guard == nullptr) {
|
|
push_error(R"(Expected expression for pattern guard after "when".)");
|
|
} else {
|
|
branch->guard_body->statements.append(guard);
|
|
}
|
|
current_suite = parent_block;
|
|
complete_extents(branch->guard_body);
|
|
|
|
has_guard = true;
|
|
branch->has_wildcard = false; // If it has a guard, the wildcard might still not match.
|
|
}
|
|
|
|
if (!consume(GDScriptTokenizer::Token::COLON, vformat(R"(Expected ":"%s after "match" %s.)", has_guard ? "" : R"( or "when")", has_guard ? "pattern guard" : "patterns"))) {
|
|
complete_extents(branch);
|
|
return nullptr;
|
|
}
|
|
|
|
SuiteNode *suite = alloc_node<SuiteNode>();
|
|
if (branch->patterns.size() > 0) {
|
|
for (const KeyValue<StringName, IdentifierNode *> &E : branch->patterns[0]->binds) {
|
|
SuiteNode::Local local(E.value, current_function);
|
|
local.type = SuiteNode::Local::PATTERN_BIND;
|
|
suite->add_local(local);
|
|
}
|
|
}
|
|
|
|
branch->block = parse_suite("match pattern block", suite);
|
|
complete_extents(branch);
|
|
|
|
return branch;
|
|
}
|
|
|
|
GDScriptParser::PatternNode *GDScriptParser::parse_match_pattern(PatternNode *p_root_pattern) {
|
|
PatternNode *pattern = alloc_node<PatternNode>();
|
|
reset_extents(pattern, current);
|
|
|
|
switch (current.type) {
|
|
case GDScriptTokenizer::Token::VAR: {
|
|
// Bind.
|
|
advance();
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected bind name after "var".)")) {
|
|
complete_extents(pattern);
|
|
return nullptr;
|
|
}
|
|
pattern->pattern_type = PatternNode::PT_BIND;
|
|
pattern->bind = parse_identifier();
|
|
|
|
PatternNode *root_pattern = p_root_pattern == nullptr ? pattern : p_root_pattern;
|
|
|
|
if (p_root_pattern != nullptr) {
|
|
if (p_root_pattern->has_bind(pattern->bind->name)) {
|
|
push_error(vformat(R"(Bind variable name "%s" was already used in this pattern.)", pattern->bind->name));
|
|
complete_extents(pattern);
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
if (current_suite->has_local(pattern->bind->name)) {
|
|
push_error(vformat(R"(There's already a %s named "%s" in this scope.)", current_suite->get_local(pattern->bind->name).get_name(), pattern->bind->name));
|
|
complete_extents(pattern);
|
|
return nullptr;
|
|
}
|
|
|
|
root_pattern->binds[pattern->bind->name] = pattern->bind;
|
|
|
|
} break;
|
|
case GDScriptTokenizer::Token::UNDERSCORE:
|
|
// Wildcard.
|
|
advance();
|
|
pattern->pattern_type = PatternNode::PT_WILDCARD;
|
|
break;
|
|
case GDScriptTokenizer::Token::PERIOD_PERIOD:
|
|
// Rest.
|
|
advance();
|
|
pattern->pattern_type = PatternNode::PT_REST;
|
|
break;
|
|
case GDScriptTokenizer::Token::BRACKET_OPEN: {
|
|
// Array.
|
|
push_multiline(true);
|
|
advance();
|
|
pattern->pattern_type = PatternNode::PT_ARRAY;
|
|
do {
|
|
if (is_at_end() || check(GDScriptTokenizer::Token::BRACKET_CLOSE)) {
|
|
break;
|
|
}
|
|
PatternNode *sub_pattern = parse_match_pattern(p_root_pattern != nullptr ? p_root_pattern : pattern);
|
|
if (sub_pattern == nullptr) {
|
|
continue;
|
|
}
|
|
if (pattern->rest_used) {
|
|
push_error(R"(The ".." pattern must be the last element in the pattern array.)");
|
|
} else if (sub_pattern->pattern_type == PatternNode::PT_REST) {
|
|
pattern->rest_used = true;
|
|
}
|
|
pattern->array.push_back(sub_pattern);
|
|
} while (match(GDScriptTokenizer::Token::COMMA));
|
|
consume(GDScriptTokenizer::Token::BRACKET_CLOSE, R"(Expected "]" to close the array pattern.)");
|
|
pop_multiline();
|
|
break;
|
|
}
|
|
case GDScriptTokenizer::Token::BRACE_OPEN: {
|
|
// Dictionary.
|
|
push_multiline(true);
|
|
advance();
|
|
pattern->pattern_type = PatternNode::PT_DICTIONARY;
|
|
do {
|
|
if (check(GDScriptTokenizer::Token::BRACE_CLOSE) || is_at_end()) {
|
|
break;
|
|
}
|
|
if (match(GDScriptTokenizer::Token::PERIOD_PERIOD)) {
|
|
// Rest.
|
|
if (pattern->rest_used) {
|
|
push_error(R"(The ".." pattern must be the last element in the pattern dictionary.)");
|
|
} else {
|
|
PatternNode *sub_pattern = alloc_node<PatternNode>();
|
|
complete_extents(sub_pattern);
|
|
sub_pattern->pattern_type = PatternNode::PT_REST;
|
|
pattern->dictionary.push_back({ nullptr, sub_pattern });
|
|
pattern->rest_used = true;
|
|
}
|
|
} else {
|
|
ExpressionNode *key = parse_expression(false);
|
|
if (key == nullptr) {
|
|
push_error(R"(Expected expression as key for dictionary pattern.)");
|
|
}
|
|
if (match(GDScriptTokenizer::Token::COLON)) {
|
|
// Value pattern.
|
|
PatternNode *sub_pattern = parse_match_pattern(p_root_pattern != nullptr ? p_root_pattern : pattern);
|
|
if (sub_pattern == nullptr) {
|
|
continue;
|
|
}
|
|
if (pattern->rest_used) {
|
|
push_error(R"(The ".." pattern must be the last element in the pattern dictionary.)");
|
|
} else if (sub_pattern->pattern_type == PatternNode::PT_REST) {
|
|
push_error(R"(The ".." pattern cannot be used as a value.)");
|
|
} else {
|
|
pattern->dictionary.push_back({ key, sub_pattern });
|
|
}
|
|
} else {
|
|
// Key match only.
|
|
pattern->dictionary.push_back({ key, nullptr });
|
|
}
|
|
}
|
|
} while (match(GDScriptTokenizer::Token::COMMA));
|
|
consume(GDScriptTokenizer::Token::BRACE_CLOSE, R"(Expected "}" to close the dictionary pattern.)");
|
|
pop_multiline();
|
|
break;
|
|
}
|
|
default: {
|
|
// Expression.
|
|
ExpressionNode *expression = parse_expression(false);
|
|
if (expression == nullptr) {
|
|
push_error(R"(Expected expression for match pattern.)");
|
|
complete_extents(pattern);
|
|
return nullptr;
|
|
} else {
|
|
if (expression->type == GDScriptParser::Node::LITERAL) {
|
|
pattern->pattern_type = PatternNode::PT_LITERAL;
|
|
} else {
|
|
pattern->pattern_type = PatternNode::PT_EXPRESSION;
|
|
}
|
|
pattern->expression = expression;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
complete_extents(pattern);
|
|
|
|
return pattern;
|
|
}
|
|
|
|
bool GDScriptParser::PatternNode::has_bind(const StringName &p_name) {
|
|
return binds.has(p_name);
|
|
}
|
|
|
|
GDScriptParser::IdentifierNode *GDScriptParser::PatternNode::get_bind(const StringName &p_name) {
|
|
return binds[p_name];
|
|
}
|
|
|
|
GDScriptParser::WhileNode *GDScriptParser::parse_while() {
|
|
WhileNode *n_while = alloc_node<WhileNode>();
|
|
|
|
n_while->condition = parse_expression(false);
|
|
if (n_while->condition == nullptr) {
|
|
push_error(R"(Expected conditional expression after "while".)");
|
|
}
|
|
|
|
consume(GDScriptTokenizer::Token::COLON, R"(Expected ":" after "while" condition.)");
|
|
|
|
// Save break/continue state.
|
|
bool could_break = can_break;
|
|
bool could_continue = can_continue;
|
|
|
|
// Allow break/continue.
|
|
can_break = true;
|
|
can_continue = true;
|
|
|
|
SuiteNode *suite = alloc_node<SuiteNode>();
|
|
suite->is_in_loop = true;
|
|
n_while->loop = parse_suite(R"("while" block)", suite);
|
|
complete_extents(n_while);
|
|
|
|
// Reset break/continue state.
|
|
can_break = could_break;
|
|
can_continue = could_continue;
|
|
|
|
return n_while;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_precedence(Precedence p_precedence, bool p_can_assign, bool p_stop_on_assign) {
|
|
// Switch multiline mode on for grouping tokens.
|
|
// Do this early to avoid the tokenizer generating whitespace tokens.
|
|
switch (current.type) {
|
|
case GDScriptTokenizer::Token::PARENTHESIS_OPEN:
|
|
case GDScriptTokenizer::Token::BRACE_OPEN:
|
|
case GDScriptTokenizer::Token::BRACKET_OPEN:
|
|
push_multiline(true);
|
|
break;
|
|
default:
|
|
break; // Nothing to do.
|
|
}
|
|
|
|
// Completion can appear whenever an expression is expected.
|
|
make_completion_context(COMPLETION_IDENTIFIER, nullptr);
|
|
|
|
GDScriptTokenizer::Token token = current;
|
|
GDScriptTokenizer::Token::Type token_type = token.type;
|
|
if (token.is_identifier()) {
|
|
// Allow keywords that can be treated as identifiers.
|
|
token_type = GDScriptTokenizer::Token::IDENTIFIER;
|
|
}
|
|
ParseFunction prefix_rule = get_rule(token_type)->prefix;
|
|
|
|
if (prefix_rule == nullptr) {
|
|
// Expected expression. Let the caller give the proper error message.
|
|
return nullptr;
|
|
}
|
|
|
|
advance(); // Only consume the token if there's a valid rule.
|
|
|
|
ExpressionNode *previous_operand = (this->*prefix_rule)(nullptr, p_can_assign);
|
|
|
|
while (p_precedence <= get_rule(current.type)->precedence) {
|
|
if (previous_operand == nullptr || (p_stop_on_assign && current.type == GDScriptTokenizer::Token::EQUAL) || lambda_ended) {
|
|
return previous_operand;
|
|
}
|
|
// Also switch multiline mode on here for infix operators.
|
|
switch (current.type) {
|
|
// case GDScriptTokenizer::Token::BRACE_OPEN: // Not an infix operator.
|
|
case GDScriptTokenizer::Token::PARENTHESIS_OPEN:
|
|
case GDScriptTokenizer::Token::BRACKET_OPEN:
|
|
push_multiline(true);
|
|
break;
|
|
default:
|
|
break; // Nothing to do.
|
|
}
|
|
token = advance();
|
|
ParseFunction infix_rule = get_rule(token.type)->infix;
|
|
previous_operand = (this->*infix_rule)(previous_operand, p_can_assign);
|
|
}
|
|
|
|
return previous_operand;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_expression(bool p_can_assign, bool p_stop_on_assign) {
|
|
return parse_precedence(PREC_ASSIGNMENT, p_can_assign, p_stop_on_assign);
|
|
}
|
|
|
|
GDScriptParser::IdentifierNode *GDScriptParser::parse_identifier() {
|
|
IdentifierNode *identifier = static_cast<IdentifierNode *>(parse_identifier(nullptr, false));
|
|
#ifdef DEBUG_ENABLED
|
|
// Check for spoofing here (if available in TextServer) since this isn't called inside expressions. This is only relevant for declarations.
|
|
if (identifier && TS->has_feature(TextServer::FEATURE_UNICODE_SECURITY) && TS->spoof_check(identifier->name)) {
|
|
push_warning(identifier, GDScriptWarning::CONFUSABLE_IDENTIFIER, identifier->name.operator String());
|
|
}
|
|
#endif
|
|
return identifier;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_identifier(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
if (!previous.is_identifier()) {
|
|
ERR_FAIL_V_MSG(nullptr, "Parser bug: parsing identifier node without identifier token.");
|
|
}
|
|
IdentifierNode *identifier = alloc_node<IdentifierNode>();
|
|
complete_extents(identifier);
|
|
identifier->name = previous.get_identifier();
|
|
if (identifier->name.operator String().is_empty()) {
|
|
print_line("Empty identifier found.");
|
|
}
|
|
identifier->suite = current_suite;
|
|
|
|
if (current_suite != nullptr && current_suite->has_local(identifier->name)) {
|
|
const SuiteNode::Local &declaration = current_suite->get_local(identifier->name);
|
|
|
|
identifier->source_function = declaration.source_function;
|
|
switch (declaration.type) {
|
|
case SuiteNode::Local::CONSTANT:
|
|
identifier->source = IdentifierNode::LOCAL_CONSTANT;
|
|
identifier->constant_source = declaration.constant;
|
|
declaration.constant->usages++;
|
|
break;
|
|
case SuiteNode::Local::VARIABLE:
|
|
identifier->source = IdentifierNode::LOCAL_VARIABLE;
|
|
identifier->variable_source = declaration.variable;
|
|
declaration.variable->usages++;
|
|
break;
|
|
case SuiteNode::Local::PARAMETER:
|
|
identifier->source = IdentifierNode::FUNCTION_PARAMETER;
|
|
identifier->parameter_source = declaration.parameter;
|
|
declaration.parameter->usages++;
|
|
break;
|
|
case SuiteNode::Local::FOR_VARIABLE:
|
|
identifier->source = IdentifierNode::LOCAL_ITERATOR;
|
|
identifier->bind_source = declaration.bind;
|
|
declaration.bind->usages++;
|
|
break;
|
|
case SuiteNode::Local::PATTERN_BIND:
|
|
identifier->source = IdentifierNode::LOCAL_BIND;
|
|
identifier->bind_source = declaration.bind;
|
|
declaration.bind->usages++;
|
|
break;
|
|
case SuiteNode::Local::UNDEFINED:
|
|
ERR_FAIL_V_MSG(nullptr, "Undefined local found.");
|
|
}
|
|
}
|
|
|
|
return identifier;
|
|
}
|
|
|
|
GDScriptParser::LiteralNode *GDScriptParser::parse_literal() {
|
|
return static_cast<LiteralNode *>(parse_literal(nullptr, false));
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_literal(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
if (previous.type != GDScriptTokenizer::Token::LITERAL) {
|
|
push_error("Parser bug: parsing literal node without literal token.");
|
|
ERR_FAIL_V_MSG(nullptr, "Parser bug: parsing literal node without literal token.");
|
|
}
|
|
|
|
LiteralNode *literal = alloc_node<LiteralNode>();
|
|
literal->value = previous.literal;
|
|
reset_extents(literal, p_previous_operand);
|
|
update_extents(literal);
|
|
make_completion_context(COMPLETION_NONE, literal, -1);
|
|
complete_extents(literal);
|
|
return literal;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_self(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
if (current_function && current_function->is_static) {
|
|
push_error(R"(Cannot use "self" inside a static function.)");
|
|
}
|
|
SelfNode *self = alloc_node<SelfNode>();
|
|
complete_extents(self);
|
|
self->current_class = current_class;
|
|
return self;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_builtin_constant(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
GDScriptTokenizer::Token::Type op_type = previous.type;
|
|
LiteralNode *constant = alloc_node<LiteralNode>();
|
|
complete_extents(constant);
|
|
|
|
switch (op_type) {
|
|
case GDScriptTokenizer::Token::CONST_PI:
|
|
constant->value = Math_PI;
|
|
break;
|
|
case GDScriptTokenizer::Token::CONST_TAU:
|
|
constant->value = Math_TAU;
|
|
break;
|
|
case GDScriptTokenizer::Token::CONST_INF:
|
|
constant->value = INFINITY;
|
|
break;
|
|
case GDScriptTokenizer::Token::CONST_NAN:
|
|
constant->value = NAN;
|
|
break;
|
|
default:
|
|
return nullptr; // Unreachable.
|
|
}
|
|
|
|
return constant;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_unary_operator(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
GDScriptTokenizer::Token::Type op_type = previous.type;
|
|
UnaryOpNode *operation = alloc_node<UnaryOpNode>();
|
|
|
|
switch (op_type) {
|
|
case GDScriptTokenizer::Token::MINUS:
|
|
operation->operation = UnaryOpNode::OP_NEGATIVE;
|
|
operation->variant_op = Variant::OP_NEGATE;
|
|
operation->operand = parse_precedence(PREC_SIGN, false);
|
|
if (operation->operand == nullptr) {
|
|
push_error(R"(Expected expression after "-" operator.)");
|
|
}
|
|
break;
|
|
case GDScriptTokenizer::Token::PLUS:
|
|
operation->operation = UnaryOpNode::OP_POSITIVE;
|
|
operation->variant_op = Variant::OP_POSITIVE;
|
|
operation->operand = parse_precedence(PREC_SIGN, false);
|
|
if (operation->operand == nullptr) {
|
|
push_error(R"(Expected expression after "+" operator.)");
|
|
}
|
|
break;
|
|
case GDScriptTokenizer::Token::TILDE:
|
|
operation->operation = UnaryOpNode::OP_COMPLEMENT;
|
|
operation->variant_op = Variant::OP_BIT_NEGATE;
|
|
operation->operand = parse_precedence(PREC_BIT_NOT, false);
|
|
if (operation->operand == nullptr) {
|
|
push_error(R"(Expected expression after "~" operator.)");
|
|
}
|
|
break;
|
|
case GDScriptTokenizer::Token::NOT:
|
|
case GDScriptTokenizer::Token::BANG:
|
|
operation->operation = UnaryOpNode::OP_LOGIC_NOT;
|
|
operation->variant_op = Variant::OP_NOT;
|
|
operation->operand = parse_precedence(PREC_LOGIC_NOT, false);
|
|
if (operation->operand == nullptr) {
|
|
push_error(vformat(R"(Expected expression after "%s" operator.)", op_type == GDScriptTokenizer::Token::NOT ? "not" : "!"));
|
|
}
|
|
break;
|
|
default:
|
|
complete_extents(operation);
|
|
return nullptr; // Unreachable.
|
|
}
|
|
complete_extents(operation);
|
|
|
|
return operation;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_binary_not_in_operator(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
// check that NOT is followed by IN by consuming it before calling parse_binary_operator which will only receive a plain IN
|
|
UnaryOpNode *operation = alloc_node<UnaryOpNode>();
|
|
reset_extents(operation, p_previous_operand);
|
|
update_extents(operation);
|
|
consume(GDScriptTokenizer::Token::IN, R"(Expected "in" after "not" in content-test operator.)");
|
|
ExpressionNode *in_operation = parse_binary_operator(p_previous_operand, p_can_assign);
|
|
operation->operation = UnaryOpNode::OP_LOGIC_NOT;
|
|
operation->variant_op = Variant::OP_NOT;
|
|
operation->operand = in_operation;
|
|
complete_extents(operation);
|
|
return operation;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_binary_operator(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
GDScriptTokenizer::Token op = previous;
|
|
BinaryOpNode *operation = alloc_node<BinaryOpNode>();
|
|
reset_extents(operation, p_previous_operand);
|
|
update_extents(operation);
|
|
|
|
Precedence precedence = (Precedence)(get_rule(op.type)->precedence + 1);
|
|
operation->left_operand = p_previous_operand;
|
|
operation->right_operand = parse_precedence(precedence, false);
|
|
complete_extents(operation);
|
|
|
|
if (operation->right_operand == nullptr) {
|
|
push_error(vformat(R"(Expected expression after "%s" operator.)", op.get_name()));
|
|
}
|
|
|
|
// TODO: Also for unary, ternary, and assignment.
|
|
switch (op.type) {
|
|
case GDScriptTokenizer::Token::PLUS:
|
|
operation->operation = BinaryOpNode::OP_ADDITION;
|
|
operation->variant_op = Variant::OP_ADD;
|
|
break;
|
|
case GDScriptTokenizer::Token::MINUS:
|
|
operation->operation = BinaryOpNode::OP_SUBTRACTION;
|
|
operation->variant_op = Variant::OP_SUBTRACT;
|
|
break;
|
|
case GDScriptTokenizer::Token::STAR:
|
|
operation->operation = BinaryOpNode::OP_MULTIPLICATION;
|
|
operation->variant_op = Variant::OP_MULTIPLY;
|
|
break;
|
|
case GDScriptTokenizer::Token::SLASH:
|
|
operation->operation = BinaryOpNode::OP_DIVISION;
|
|
operation->variant_op = Variant::OP_DIVIDE;
|
|
break;
|
|
case GDScriptTokenizer::Token::PERCENT:
|
|
operation->operation = BinaryOpNode::OP_MODULO;
|
|
operation->variant_op = Variant::OP_MODULE;
|
|
break;
|
|
case GDScriptTokenizer::Token::STAR_STAR:
|
|
operation->operation = BinaryOpNode::OP_POWER;
|
|
operation->variant_op = Variant::OP_POWER;
|
|
break;
|
|
case GDScriptTokenizer::Token::LESS_LESS:
|
|
operation->operation = BinaryOpNode::OP_BIT_LEFT_SHIFT;
|
|
operation->variant_op = Variant::OP_SHIFT_LEFT;
|
|
break;
|
|
case GDScriptTokenizer::Token::GREATER_GREATER:
|
|
operation->operation = BinaryOpNode::OP_BIT_RIGHT_SHIFT;
|
|
operation->variant_op = Variant::OP_SHIFT_RIGHT;
|
|
break;
|
|
case GDScriptTokenizer::Token::AMPERSAND:
|
|
operation->operation = BinaryOpNode::OP_BIT_AND;
|
|
operation->variant_op = Variant::OP_BIT_AND;
|
|
break;
|
|
case GDScriptTokenizer::Token::PIPE:
|
|
operation->operation = BinaryOpNode::OP_BIT_OR;
|
|
operation->variant_op = Variant::OP_BIT_OR;
|
|
break;
|
|
case GDScriptTokenizer::Token::CARET:
|
|
operation->operation = BinaryOpNode::OP_BIT_XOR;
|
|
operation->variant_op = Variant::OP_BIT_XOR;
|
|
break;
|
|
case GDScriptTokenizer::Token::AND:
|
|
case GDScriptTokenizer::Token::AMPERSAND_AMPERSAND:
|
|
operation->operation = BinaryOpNode::OP_LOGIC_AND;
|
|
operation->variant_op = Variant::OP_AND;
|
|
break;
|
|
case GDScriptTokenizer::Token::OR:
|
|
case GDScriptTokenizer::Token::PIPE_PIPE:
|
|
operation->operation = BinaryOpNode::OP_LOGIC_OR;
|
|
operation->variant_op = Variant::OP_OR;
|
|
break;
|
|
case GDScriptTokenizer::Token::IN:
|
|
operation->operation = BinaryOpNode::OP_CONTENT_TEST;
|
|
operation->variant_op = Variant::OP_IN;
|
|
break;
|
|
case GDScriptTokenizer::Token::EQUAL_EQUAL:
|
|
operation->operation = BinaryOpNode::OP_COMP_EQUAL;
|
|
operation->variant_op = Variant::OP_EQUAL;
|
|
break;
|
|
case GDScriptTokenizer::Token::BANG_EQUAL:
|
|
operation->operation = BinaryOpNode::OP_COMP_NOT_EQUAL;
|
|
operation->variant_op = Variant::OP_NOT_EQUAL;
|
|
break;
|
|
case GDScriptTokenizer::Token::LESS:
|
|
operation->operation = BinaryOpNode::OP_COMP_LESS;
|
|
operation->variant_op = Variant::OP_LESS;
|
|
break;
|
|
case GDScriptTokenizer::Token::LESS_EQUAL:
|
|
operation->operation = BinaryOpNode::OP_COMP_LESS_EQUAL;
|
|
operation->variant_op = Variant::OP_LESS_EQUAL;
|
|
break;
|
|
case GDScriptTokenizer::Token::GREATER:
|
|
operation->operation = BinaryOpNode::OP_COMP_GREATER;
|
|
operation->variant_op = Variant::OP_GREATER;
|
|
break;
|
|
case GDScriptTokenizer::Token::GREATER_EQUAL:
|
|
operation->operation = BinaryOpNode::OP_COMP_GREATER_EQUAL;
|
|
operation->variant_op = Variant::OP_GREATER_EQUAL;
|
|
break;
|
|
default:
|
|
return nullptr; // Unreachable.
|
|
}
|
|
|
|
return operation;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_ternary_operator(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
// Only one ternary operation exists, so no abstraction here.
|
|
TernaryOpNode *operation = alloc_node<TernaryOpNode>();
|
|
reset_extents(operation, p_previous_operand);
|
|
update_extents(operation);
|
|
|
|
operation->true_expr = p_previous_operand;
|
|
operation->condition = parse_precedence(PREC_TERNARY, false);
|
|
|
|
if (operation->condition == nullptr) {
|
|
push_error(R"(Expected expression as ternary condition after "if".)");
|
|
}
|
|
|
|
consume(GDScriptTokenizer::Token::ELSE, R"(Expected "else" after ternary operator condition.)");
|
|
|
|
operation->false_expr = parse_precedence(PREC_TERNARY, false);
|
|
|
|
if (operation->false_expr == nullptr) {
|
|
push_error(R"(Expected expression after "else".)");
|
|
}
|
|
|
|
complete_extents(operation);
|
|
return operation;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_assignment(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
if (!p_can_assign) {
|
|
push_error("Assignment is not allowed inside an expression.");
|
|
return parse_expression(false); // Return the following expression.
|
|
}
|
|
if (p_previous_operand == nullptr) {
|
|
return parse_expression(false); // Return the following expression.
|
|
}
|
|
|
|
switch (p_previous_operand->type) {
|
|
case Node::IDENTIFIER: {
|
|
#ifdef DEBUG_ENABLED
|
|
// Get source to store assignment count.
|
|
// Also remove one usage since assignment isn't usage.
|
|
IdentifierNode *id = static_cast<IdentifierNode *>(p_previous_operand);
|
|
switch (id->source) {
|
|
case IdentifierNode::LOCAL_VARIABLE:
|
|
id->variable_source->usages--;
|
|
break;
|
|
case IdentifierNode::LOCAL_CONSTANT:
|
|
id->constant_source->usages--;
|
|
break;
|
|
case IdentifierNode::FUNCTION_PARAMETER:
|
|
id->parameter_source->usages--;
|
|
break;
|
|
case IdentifierNode::LOCAL_ITERATOR:
|
|
case IdentifierNode::LOCAL_BIND:
|
|
id->bind_source->usages--;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
#endif
|
|
} break;
|
|
case Node::SUBSCRIPT:
|
|
// Okay.
|
|
break;
|
|
default:
|
|
push_error(R"(Only identifier, attribute access, and subscription access can be used as assignment target.)");
|
|
return parse_expression(false); // Return the following expression.
|
|
}
|
|
|
|
AssignmentNode *assignment = alloc_node<AssignmentNode>();
|
|
reset_extents(assignment, p_previous_operand);
|
|
update_extents(assignment);
|
|
|
|
make_completion_context(COMPLETION_ASSIGN, assignment);
|
|
switch (previous.type) {
|
|
case GDScriptTokenizer::Token::EQUAL:
|
|
assignment->operation = AssignmentNode::OP_NONE;
|
|
assignment->variant_op = Variant::OP_MAX;
|
|
break;
|
|
case GDScriptTokenizer::Token::PLUS_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_ADDITION;
|
|
assignment->variant_op = Variant::OP_ADD;
|
|
break;
|
|
case GDScriptTokenizer::Token::MINUS_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_SUBTRACTION;
|
|
assignment->variant_op = Variant::OP_SUBTRACT;
|
|
break;
|
|
case GDScriptTokenizer::Token::STAR_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_MULTIPLICATION;
|
|
assignment->variant_op = Variant::OP_MULTIPLY;
|
|
break;
|
|
case GDScriptTokenizer::Token::STAR_STAR_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_POWER;
|
|
assignment->variant_op = Variant::OP_POWER;
|
|
break;
|
|
case GDScriptTokenizer::Token::SLASH_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_DIVISION;
|
|
assignment->variant_op = Variant::OP_DIVIDE;
|
|
break;
|
|
case GDScriptTokenizer::Token::PERCENT_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_MODULO;
|
|
assignment->variant_op = Variant::OP_MODULE;
|
|
break;
|
|
case GDScriptTokenizer::Token::LESS_LESS_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_BIT_SHIFT_LEFT;
|
|
assignment->variant_op = Variant::OP_SHIFT_LEFT;
|
|
break;
|
|
case GDScriptTokenizer::Token::GREATER_GREATER_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_BIT_SHIFT_RIGHT;
|
|
assignment->variant_op = Variant::OP_SHIFT_RIGHT;
|
|
break;
|
|
case GDScriptTokenizer::Token::AMPERSAND_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_BIT_AND;
|
|
assignment->variant_op = Variant::OP_BIT_AND;
|
|
break;
|
|
case GDScriptTokenizer::Token::PIPE_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_BIT_OR;
|
|
assignment->variant_op = Variant::OP_BIT_OR;
|
|
break;
|
|
case GDScriptTokenizer::Token::CARET_EQUAL:
|
|
assignment->operation = AssignmentNode::OP_BIT_XOR;
|
|
assignment->variant_op = Variant::OP_BIT_XOR;
|
|
break;
|
|
default:
|
|
break; // Unreachable.
|
|
}
|
|
assignment->assignee = p_previous_operand;
|
|
assignment->assigned_value = parse_expression(false);
|
|
if (assignment->assigned_value == nullptr) {
|
|
push_error(R"(Expected an expression after "=".)");
|
|
}
|
|
complete_extents(assignment);
|
|
|
|
return assignment;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_await(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
AwaitNode *await = alloc_node<AwaitNode>();
|
|
ExpressionNode *element = parse_precedence(PREC_AWAIT, false);
|
|
if (element == nullptr) {
|
|
push_error(R"(Expected signal or coroutine after "await".)");
|
|
}
|
|
await->to_await = element;
|
|
complete_extents(await);
|
|
|
|
if (current_function) { // Might be null in a getter or setter.
|
|
current_function->is_coroutine = true;
|
|
}
|
|
|
|
return await;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_array(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
ArrayNode *array = alloc_node<ArrayNode>();
|
|
|
|
if (!check(GDScriptTokenizer::Token::BRACKET_CLOSE)) {
|
|
do {
|
|
if (check(GDScriptTokenizer::Token::BRACKET_CLOSE)) {
|
|
// Allow for trailing comma.
|
|
break;
|
|
}
|
|
|
|
ExpressionNode *element = parse_expression(false);
|
|
if (element == nullptr) {
|
|
push_error(R"(Expected expression as array element.)");
|
|
} else {
|
|
array->elements.push_back(element);
|
|
}
|
|
} while (match(GDScriptTokenizer::Token::COMMA) && !is_at_end());
|
|
}
|
|
pop_multiline();
|
|
consume(GDScriptTokenizer::Token::BRACKET_CLOSE, R"(Expected closing "]" after array elements.)");
|
|
complete_extents(array);
|
|
|
|
return array;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_dictionary(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
DictionaryNode *dictionary = alloc_node<DictionaryNode>();
|
|
|
|
bool decided_style = false;
|
|
if (!check(GDScriptTokenizer::Token::BRACE_CLOSE)) {
|
|
do {
|
|
if (check(GDScriptTokenizer::Token::BRACE_CLOSE)) {
|
|
// Allow for trailing comma.
|
|
break;
|
|
}
|
|
|
|
// Key.
|
|
ExpressionNode *key = parse_expression(false, true); // Stop on "=" so we can check for Lua table style.
|
|
|
|
if (key == nullptr) {
|
|
push_error(R"(Expected expression as dictionary key.)");
|
|
}
|
|
|
|
if (!decided_style) {
|
|
switch (current.type) {
|
|
case GDScriptTokenizer::Token::COLON:
|
|
dictionary->style = DictionaryNode::PYTHON_DICT;
|
|
break;
|
|
case GDScriptTokenizer::Token::EQUAL:
|
|
dictionary->style = DictionaryNode::LUA_TABLE;
|
|
break;
|
|
default:
|
|
push_error(R"(Expected ":" or "=" after dictionary key.)");
|
|
break;
|
|
}
|
|
decided_style = true;
|
|
}
|
|
|
|
switch (dictionary->style) {
|
|
case DictionaryNode::LUA_TABLE:
|
|
if (key != nullptr && key->type != Node::IDENTIFIER && key->type != Node::LITERAL) {
|
|
push_error(R"(Expected identifier or string as Lua-style dictionary key (e.g "{ key = value }").)");
|
|
advance();
|
|
break;
|
|
}
|
|
if (key != nullptr && key->type == Node::LITERAL && static_cast<LiteralNode *>(key)->value.get_type() != Variant::STRING) {
|
|
push_error(R"(Expected identifier or string as Lua-style dictionary key (e.g "{ key = value }").)");
|
|
advance();
|
|
break;
|
|
}
|
|
if (!match(GDScriptTokenizer::Token::EQUAL)) {
|
|
if (match(GDScriptTokenizer::Token::COLON)) {
|
|
push_error(R"(Expected "=" after dictionary key. Mixing dictionary styles is not allowed.)");
|
|
advance(); // Consume wrong separator anyway.
|
|
} else {
|
|
push_error(R"(Expected "=" after dictionary key.)");
|
|
}
|
|
}
|
|
if (key != nullptr) {
|
|
key->is_constant = true;
|
|
if (key->type == Node::IDENTIFIER) {
|
|
key->reduced_value = static_cast<IdentifierNode *>(key)->name;
|
|
} else if (key->type == Node::LITERAL) {
|
|
key->reduced_value = StringName(static_cast<LiteralNode *>(key)->value.operator String());
|
|
}
|
|
}
|
|
break;
|
|
case DictionaryNode::PYTHON_DICT:
|
|
if (!match(GDScriptTokenizer::Token::COLON)) {
|
|
if (match(GDScriptTokenizer::Token::EQUAL)) {
|
|
push_error(R"(Expected ":" after dictionary key. Mixing dictionary styles is not allowed.)");
|
|
advance(); // Consume wrong separator anyway.
|
|
} else {
|
|
push_error(R"(Expected ":" after dictionary key.)");
|
|
}
|
|
}
|
|
break;
|
|
}
|
|
|
|
// Value.
|
|
ExpressionNode *value = parse_expression(false);
|
|
if (value == nullptr) {
|
|
push_error(R"(Expected expression as dictionary value.)");
|
|
}
|
|
|
|
if (key != nullptr && value != nullptr) {
|
|
dictionary->elements.push_back({ key, value });
|
|
}
|
|
} while (match(GDScriptTokenizer::Token::COMMA) && !is_at_end());
|
|
}
|
|
pop_multiline();
|
|
consume(GDScriptTokenizer::Token::BRACE_CLOSE, R"(Expected closing "}" after dictionary elements.)");
|
|
complete_extents(dictionary);
|
|
|
|
return dictionary;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_grouping(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
ExpressionNode *grouped = parse_expression(false);
|
|
pop_multiline();
|
|
if (grouped == nullptr) {
|
|
push_error(R"(Expected grouping expression.)");
|
|
} else {
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected closing ")" after grouping expression.)*");
|
|
}
|
|
return grouped;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_attribute(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
SubscriptNode *attribute = alloc_node<SubscriptNode>();
|
|
reset_extents(attribute, p_previous_operand);
|
|
update_extents(attribute);
|
|
|
|
if (for_completion) {
|
|
bool is_builtin = false;
|
|
if (p_previous_operand && p_previous_operand->type == Node::IDENTIFIER) {
|
|
const IdentifierNode *id = static_cast<const IdentifierNode *>(p_previous_operand);
|
|
Variant::Type builtin_type = get_builtin_type(id->name);
|
|
if (builtin_type < Variant::VARIANT_MAX) {
|
|
make_completion_context(COMPLETION_BUILT_IN_TYPE_CONSTANT_OR_STATIC_METHOD, builtin_type);
|
|
is_builtin = true;
|
|
}
|
|
}
|
|
if (!is_builtin) {
|
|
make_completion_context(COMPLETION_ATTRIBUTE, attribute, -1);
|
|
}
|
|
}
|
|
|
|
attribute->base = p_previous_operand;
|
|
|
|
if (current.is_node_name()) {
|
|
current.type = GDScriptTokenizer::Token::IDENTIFIER;
|
|
}
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected identifier after "." for attribute access.)")) {
|
|
complete_extents(attribute);
|
|
return attribute;
|
|
}
|
|
|
|
attribute->is_attribute = true;
|
|
attribute->attribute = parse_identifier();
|
|
|
|
complete_extents(attribute);
|
|
return attribute;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_subscript(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
SubscriptNode *subscript = alloc_node<SubscriptNode>();
|
|
reset_extents(subscript, p_previous_operand);
|
|
update_extents(subscript);
|
|
|
|
make_completion_context(COMPLETION_SUBSCRIPT, subscript);
|
|
|
|
subscript->base = p_previous_operand;
|
|
subscript->index = parse_expression(false);
|
|
|
|
#ifdef TOOLS_ENABLED
|
|
if (subscript->index != nullptr && subscript->index->type == Node::LITERAL) {
|
|
override_completion_context(subscript->index, COMPLETION_SUBSCRIPT, subscript);
|
|
}
|
|
#endif
|
|
|
|
if (subscript->index == nullptr) {
|
|
push_error(R"(Expected expression after "[".)");
|
|
}
|
|
|
|
pop_multiline();
|
|
consume(GDScriptTokenizer::Token::BRACKET_CLOSE, R"(Expected "]" after subscription index.)");
|
|
complete_extents(subscript);
|
|
|
|
return subscript;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_cast(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
CastNode *cast = alloc_node<CastNode>();
|
|
reset_extents(cast, p_previous_operand);
|
|
update_extents(cast);
|
|
|
|
cast->operand = p_previous_operand;
|
|
cast->cast_type = parse_type();
|
|
complete_extents(cast);
|
|
|
|
if (cast->cast_type == nullptr) {
|
|
push_error(R"(Expected type specifier after "as".)");
|
|
return p_previous_operand;
|
|
}
|
|
|
|
return cast;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_call(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
CallNode *call = alloc_node<CallNode>();
|
|
reset_extents(call, p_previous_operand);
|
|
|
|
if (previous.type == GDScriptTokenizer::Token::SUPER) {
|
|
// Super call.
|
|
call->is_super = true;
|
|
push_multiline(true);
|
|
if (match(GDScriptTokenizer::Token::PARENTHESIS_OPEN)) {
|
|
// Implicit call to the parent method of the same name.
|
|
if (current_function == nullptr) {
|
|
push_error(R"(Cannot use implicit "super" call outside of a function.)");
|
|
pop_multiline();
|
|
complete_extents(call);
|
|
return nullptr;
|
|
}
|
|
if (current_function->identifier) {
|
|
call->function_name = current_function->identifier->name;
|
|
} else {
|
|
call->function_name = SNAME("<anonymous>");
|
|
}
|
|
} else {
|
|
consume(GDScriptTokenizer::Token::PERIOD, R"(Expected "." or "(" after "super".)");
|
|
make_completion_context(COMPLETION_SUPER_METHOD, call, true);
|
|
if (!consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected function name after ".".)")) {
|
|
pop_multiline();
|
|
complete_extents(call);
|
|
return nullptr;
|
|
}
|
|
IdentifierNode *identifier = parse_identifier();
|
|
call->callee = identifier;
|
|
call->function_name = identifier->name;
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected "(" after function name.)");
|
|
}
|
|
} else {
|
|
call->callee = p_previous_operand;
|
|
|
|
if (call->callee == nullptr) {
|
|
push_error(R"*(Cannot call on an expression. Use ".call()" if it's a Callable.)*");
|
|
} else if (call->callee->type == Node::IDENTIFIER) {
|
|
call->function_name = static_cast<IdentifierNode *>(call->callee)->name;
|
|
make_completion_context(COMPLETION_METHOD, call->callee);
|
|
} else if (call->callee->type == Node::SUBSCRIPT) {
|
|
SubscriptNode *attribute = static_cast<SubscriptNode *>(call->callee);
|
|
if (attribute->is_attribute) {
|
|
if (attribute->attribute) {
|
|
call->function_name = attribute->attribute->name;
|
|
}
|
|
make_completion_context(COMPLETION_ATTRIBUTE_METHOD, call->callee);
|
|
} else {
|
|
// TODO: The analyzer can see if this is actually a Callable and give better error message.
|
|
push_error(R"*(Cannot call on an expression. Use ".call()" if it's a Callable.)*");
|
|
}
|
|
} else {
|
|
push_error(R"*(Cannot call on an expression. Use ".call()" if it's a Callable.)*");
|
|
}
|
|
}
|
|
|
|
// Arguments.
|
|
CompletionType ct = COMPLETION_CALL_ARGUMENTS;
|
|
if (call->function_name == SNAME("load")) {
|
|
ct = COMPLETION_RESOURCE_PATH;
|
|
}
|
|
push_completion_call(call);
|
|
int argument_index = 0;
|
|
do {
|
|
make_completion_context(ct, call, argument_index);
|
|
if (check(GDScriptTokenizer::Token::PARENTHESIS_CLOSE)) {
|
|
// Allow for trailing comma.
|
|
break;
|
|
}
|
|
ExpressionNode *argument = parse_expression(false);
|
|
if (argument == nullptr) {
|
|
push_error(R"(Expected expression as the function argument.)");
|
|
} else {
|
|
call->arguments.push_back(argument);
|
|
|
|
if (argument->type == Node::LITERAL) {
|
|
override_completion_context(argument, ct, call, argument_index);
|
|
}
|
|
}
|
|
|
|
ct = COMPLETION_CALL_ARGUMENTS;
|
|
argument_index++;
|
|
} while (match(GDScriptTokenizer::Token::COMMA));
|
|
pop_completion_call();
|
|
|
|
pop_multiline();
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected closing ")" after call arguments.)*");
|
|
complete_extents(call);
|
|
|
|
return call;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_get_node(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
// We want code completion after a DOLLAR even if the current code is invalid.
|
|
make_completion_context(COMPLETION_GET_NODE, nullptr, -1);
|
|
|
|
if (!current.is_node_name() && !check(GDScriptTokenizer::Token::LITERAL) && !check(GDScriptTokenizer::Token::SLASH) && !check(GDScriptTokenizer::Token::PERCENT)) {
|
|
push_error(vformat(R"(Expected node path as string or identifier after "%s".)", previous.get_name()));
|
|
return nullptr;
|
|
}
|
|
|
|
if (check(GDScriptTokenizer::Token::LITERAL)) {
|
|
if (current.literal.get_type() != Variant::STRING) {
|
|
push_error(vformat(R"(Expected node path as string or identifier after "%s".)", previous.get_name()));
|
|
return nullptr;
|
|
}
|
|
}
|
|
|
|
GetNodeNode *get_node = alloc_node<GetNodeNode>();
|
|
|
|
// Store the last item in the path so the parser knows what to expect.
|
|
// Allow allows more specific error messages.
|
|
enum PathState {
|
|
PATH_STATE_START,
|
|
PATH_STATE_SLASH,
|
|
PATH_STATE_PERCENT,
|
|
PATH_STATE_NODE_NAME,
|
|
} path_state = PATH_STATE_START;
|
|
|
|
if (previous.type == GDScriptTokenizer::Token::DOLLAR) {
|
|
// Detect initial slash, which will be handled in the loop if it matches.
|
|
match(GDScriptTokenizer::Token::SLASH);
|
|
} else {
|
|
get_node->use_dollar = false;
|
|
}
|
|
|
|
int context_argument = 0;
|
|
|
|
do {
|
|
if (previous.type == GDScriptTokenizer::Token::PERCENT) {
|
|
if (path_state != PATH_STATE_START && path_state != PATH_STATE_SLASH) {
|
|
push_error(R"("%" is only valid in the beginning of a node name (either after "$" or after "/"))");
|
|
complete_extents(get_node);
|
|
return nullptr;
|
|
}
|
|
|
|
get_node->full_path += "%";
|
|
|
|
path_state = PATH_STATE_PERCENT;
|
|
} else if (previous.type == GDScriptTokenizer::Token::SLASH) {
|
|
if (path_state != PATH_STATE_START && path_state != PATH_STATE_NODE_NAME) {
|
|
push_error(R"("/" is only valid at the beginning of the path or after a node name.)");
|
|
complete_extents(get_node);
|
|
return nullptr;
|
|
}
|
|
|
|
get_node->full_path += "/";
|
|
|
|
path_state = PATH_STATE_SLASH;
|
|
}
|
|
|
|
make_completion_context(COMPLETION_GET_NODE, get_node, context_argument++);
|
|
|
|
if (match(GDScriptTokenizer::Token::LITERAL)) {
|
|
if (previous.literal.get_type() != Variant::STRING) {
|
|
String previous_token;
|
|
switch (path_state) {
|
|
case PATH_STATE_START:
|
|
previous_token = "$";
|
|
break;
|
|
case PATH_STATE_PERCENT:
|
|
previous_token = "%";
|
|
break;
|
|
case PATH_STATE_SLASH:
|
|
previous_token = "/";
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
push_error(vformat(R"(Expected node path as string or identifier after "%s".)", previous_token));
|
|
complete_extents(get_node);
|
|
return nullptr;
|
|
}
|
|
|
|
get_node->full_path += previous.literal.operator String();
|
|
|
|
path_state = PATH_STATE_NODE_NAME;
|
|
} else if (current.is_node_name()) {
|
|
advance();
|
|
|
|
String identifier = previous.get_identifier();
|
|
#ifdef DEBUG_ENABLED
|
|
// Check spoofing.
|
|
if (TS->has_feature(TextServer::FEATURE_UNICODE_SECURITY) && TS->spoof_check(identifier)) {
|
|
push_warning(get_node, GDScriptWarning::CONFUSABLE_IDENTIFIER, identifier);
|
|
}
|
|
#endif
|
|
get_node->full_path += identifier;
|
|
|
|
path_state = PATH_STATE_NODE_NAME;
|
|
} else if (!check(GDScriptTokenizer::Token::SLASH) && !check(GDScriptTokenizer::Token::PERCENT)) {
|
|
push_error(vformat(R"(Unexpected "%s" in node path.)", current.get_name()));
|
|
complete_extents(get_node);
|
|
return nullptr;
|
|
}
|
|
} while (match(GDScriptTokenizer::Token::SLASH) || match(GDScriptTokenizer::Token::PERCENT));
|
|
|
|
complete_extents(get_node);
|
|
return get_node;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_preload(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
PreloadNode *preload = alloc_node<PreloadNode>();
|
|
preload->resolved_path = "<missing path>";
|
|
|
|
push_multiline(true);
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected "(" after "preload".)");
|
|
|
|
make_completion_context(COMPLETION_RESOURCE_PATH, preload);
|
|
push_completion_call(preload);
|
|
|
|
preload->path = parse_expression(false);
|
|
|
|
if (preload->path == nullptr) {
|
|
push_error(R"(Expected resource path after "(".)");
|
|
}
|
|
|
|
pop_completion_call();
|
|
|
|
pop_multiline();
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_CLOSE, R"*(Expected ")" after preload path.)*");
|
|
complete_extents(preload);
|
|
|
|
return preload;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_lambda(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
LambdaNode *lambda = alloc_node<LambdaNode>();
|
|
lambda->parent_function = current_function;
|
|
lambda->parent_lambda = current_lambda;
|
|
|
|
FunctionNode *function = alloc_node<FunctionNode>();
|
|
function->source_lambda = lambda;
|
|
|
|
function->is_static = current_function != nullptr ? current_function->is_static : false;
|
|
|
|
if (match(GDScriptTokenizer::Token::IDENTIFIER)) {
|
|
function->identifier = parse_identifier();
|
|
}
|
|
|
|
bool multiline_context = multiline_stack.back()->get();
|
|
|
|
// Reset the multiline stack since we don't want the multiline mode one in the lambda body.
|
|
push_multiline(false);
|
|
if (multiline_context) {
|
|
tokenizer->push_expression_indented_block();
|
|
}
|
|
|
|
push_multiline(true); // For the parameters.
|
|
if (function->identifier) {
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected opening "(" after lambda name.)");
|
|
} else {
|
|
consume(GDScriptTokenizer::Token::PARENTHESIS_OPEN, R"(Expected opening "(" after "func".)");
|
|
}
|
|
|
|
FunctionNode *previous_function = current_function;
|
|
current_function = function;
|
|
|
|
LambdaNode *previous_lambda = current_lambda;
|
|
current_lambda = lambda;
|
|
|
|
SuiteNode *body = alloc_node<SuiteNode>();
|
|
body->parent_function = current_function;
|
|
body->parent_block = current_suite;
|
|
|
|
SuiteNode *previous_suite = current_suite;
|
|
current_suite = body;
|
|
|
|
parse_function_signature(function, body, "lambda");
|
|
|
|
current_suite = previous_suite;
|
|
|
|
bool previous_in_lambda = in_lambda;
|
|
in_lambda = true;
|
|
|
|
// Save break/continue state.
|
|
bool could_break = can_break;
|
|
bool could_continue = can_continue;
|
|
|
|
// Disallow break/continue.
|
|
can_break = false;
|
|
can_continue = false;
|
|
|
|
function->body = parse_suite("lambda declaration", body, true);
|
|
complete_extents(function);
|
|
complete_extents(lambda);
|
|
|
|
pop_multiline();
|
|
|
|
if (multiline_context) {
|
|
// If we're in multiline mode, we want to skip the spurious DEDENT and NEWLINE tokens.
|
|
while (check(GDScriptTokenizer::Token::DEDENT) || check(GDScriptTokenizer::Token::INDENT) || check(GDScriptTokenizer::Token::NEWLINE)) {
|
|
current = tokenizer->scan(); // Not advance() since we don't want to change the previous token.
|
|
}
|
|
tokenizer->pop_expression_indented_block();
|
|
}
|
|
|
|
current_function = previous_function;
|
|
current_lambda = previous_lambda;
|
|
in_lambda = previous_in_lambda;
|
|
lambda->function = function;
|
|
|
|
// Reset break/continue state.
|
|
can_break = could_break;
|
|
can_continue = could_continue;
|
|
|
|
return lambda;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_type_test(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
// x is not int
|
|
// ^ ^^^ ExpressionNode, TypeNode
|
|
// ^^^^^^^^^^^^ TypeTestNode
|
|
// ^^^^^^^^^^^^ UnaryOpNode
|
|
UnaryOpNode *not_node = nullptr;
|
|
if (match(GDScriptTokenizer::Token::NOT)) {
|
|
not_node = alloc_node<UnaryOpNode>();
|
|
not_node->operation = UnaryOpNode::OP_LOGIC_NOT;
|
|
not_node->variant_op = Variant::OP_NOT;
|
|
reset_extents(not_node, p_previous_operand);
|
|
update_extents(not_node);
|
|
}
|
|
|
|
TypeTestNode *type_test = alloc_node<TypeTestNode>();
|
|
reset_extents(type_test, p_previous_operand);
|
|
update_extents(type_test);
|
|
|
|
type_test->operand = p_previous_operand;
|
|
type_test->test_type = parse_type();
|
|
complete_extents(type_test);
|
|
|
|
if (not_node != nullptr) {
|
|
not_node->operand = type_test;
|
|
complete_extents(not_node);
|
|
}
|
|
|
|
if (type_test->test_type == nullptr) {
|
|
if (not_node == nullptr) {
|
|
push_error(R"(Expected type specifier after "is".)");
|
|
} else {
|
|
push_error(R"(Expected type specifier after "is not".)");
|
|
}
|
|
}
|
|
|
|
if (not_node != nullptr) {
|
|
return not_node;
|
|
}
|
|
|
|
return type_test;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_yield(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
push_error(R"("yield" was removed in Godot 4. Use "await" instead.)");
|
|
return nullptr;
|
|
}
|
|
|
|
GDScriptParser::ExpressionNode *GDScriptParser::parse_invalid_token(ExpressionNode *p_previous_operand, bool p_can_assign) {
|
|
// Just for better error messages.
|
|
GDScriptTokenizer::Token::Type invalid = previous.type;
|
|
|
|
switch (invalid) {
|
|
case GDScriptTokenizer::Token::QUESTION_MARK:
|
|
push_error(R"(Unexpected "?" in source. If you want a ternary operator, use "truthy_value if true_condition else falsy_value".)");
|
|
break;
|
|
default:
|
|
return nullptr; // Unreachable.
|
|
}
|
|
|
|
// Return the previous expression.
|
|
return p_previous_operand;
|
|
}
|
|
|
|
GDScriptParser::TypeNode *GDScriptParser::parse_type(bool p_allow_void) {
|
|
TypeNode *type = alloc_node<TypeNode>();
|
|
make_completion_context(p_allow_void ? COMPLETION_TYPE_NAME_OR_VOID : COMPLETION_TYPE_NAME, type);
|
|
if (!match(GDScriptTokenizer::Token::IDENTIFIER)) {
|
|
if (match(GDScriptTokenizer::Token::VOID)) {
|
|
if (p_allow_void) {
|
|
complete_extents(type);
|
|
TypeNode *void_type = type;
|
|
return void_type;
|
|
} else {
|
|
push_error(R"("void" is only allowed for a function return type.)");
|
|
}
|
|
}
|
|
// Leave error message to the caller who knows the context.
|
|
complete_extents(type);
|
|
return nullptr;
|
|
}
|
|
|
|
IdentifierNode *type_element = parse_identifier();
|
|
|
|
type->type_chain.push_back(type_element);
|
|
|
|
if (match(GDScriptTokenizer::Token::BRACKET_OPEN)) {
|
|
// Typed collection (like Array[int]).
|
|
bool first_pass = true;
|
|
do {
|
|
TypeNode *container_type = parse_type(false); // Don't allow void for element type.
|
|
if (container_type == nullptr) {
|
|
push_error(vformat(R"(Expected type for collection after "%s".)", first_pass ? "[" : ","));
|
|
complete_extents(type);
|
|
type = nullptr;
|
|
break;
|
|
} else if (container_type->container_types.size() > 0) {
|
|
push_error("Nested typed collections are not supported.");
|
|
} else {
|
|
type->container_types.append(container_type);
|
|
}
|
|
first_pass = false;
|
|
} while (match(GDScriptTokenizer::Token::COMMA));
|
|
consume(GDScriptTokenizer::Token::BRACKET_CLOSE, R"(Expected closing "]" after collection type.)");
|
|
if (type != nullptr) {
|
|
complete_extents(type);
|
|
}
|
|
return type;
|
|
}
|
|
|
|
int chain_index = 1;
|
|
while (match(GDScriptTokenizer::Token::PERIOD)) {
|
|
make_completion_context(COMPLETION_TYPE_ATTRIBUTE, type, chain_index++);
|
|
if (consume(GDScriptTokenizer::Token::IDENTIFIER, R"(Expected inner type name after ".".)")) {
|
|
type_element = parse_identifier();
|
|
type->type_chain.push_back(type_element);
|
|
}
|
|
}
|
|
|
|
complete_extents(type);
|
|
return type;
|
|
}
|
|
|
|
#ifdef TOOLS_ENABLED
|
|
enum DocLineState {
|
|
DOC_LINE_NORMAL,
|
|
DOC_LINE_IN_CODE,
|
|
DOC_LINE_IN_CODEBLOCK,
|
|
DOC_LINE_IN_KBD,
|
|
};
|
|
|
|
static String _process_doc_line(const String &p_line, const String &p_text, const String &p_space_prefix, DocLineState &r_state) {
|
|
String line = p_line;
|
|
if (r_state == DOC_LINE_NORMAL) {
|
|
line = line.strip_edges(true, false);
|
|
} else {
|
|
line = line.trim_prefix(p_space_prefix);
|
|
}
|
|
|
|
String line_join;
|
|
if (!p_text.is_empty()) {
|
|
if (r_state == DOC_LINE_NORMAL) {
|
|
if (p_text.ends_with("[/codeblock]")) {
|
|
line_join = "\n";
|
|
} else if (!p_text.ends_with("[br]")) {
|
|
line_join = " ";
|
|
}
|
|
} else {
|
|
line_join = "\n";
|
|
}
|
|
}
|
|
|
|
String result;
|
|
int from = 0;
|
|
int buffer_start = 0;
|
|
const int len = line.length();
|
|
bool process = true;
|
|
while (process) {
|
|
switch (r_state) {
|
|
case DOC_LINE_NORMAL: {
|
|
int lb_pos = line.find_char('[', from);
|
|
if (lb_pos < 0) {
|
|
process = false;
|
|
break;
|
|
}
|
|
int rb_pos = line.find_char(']', lb_pos + 1);
|
|
if (rb_pos < 0) {
|
|
process = false;
|
|
break;
|
|
}
|
|
|
|
from = rb_pos + 1;
|
|
|
|
String tag = line.substr(lb_pos + 1, rb_pos - lb_pos - 1);
|
|
if (tag == "code" || tag.begins_with("code ")) {
|
|
r_state = DOC_LINE_IN_CODE;
|
|
} else if (tag == "codeblock" || tag.begins_with("codeblock ")) {
|
|
if (lb_pos == 0) {
|
|
line_join = "\n";
|
|
} else {
|
|
result += line.substr(buffer_start, lb_pos - buffer_start) + '\n';
|
|
}
|
|
result += "[" + tag + "]";
|
|
if (from < len) {
|
|
result += '\n';
|
|
}
|
|
|
|
r_state = DOC_LINE_IN_CODEBLOCK;
|
|
buffer_start = from;
|
|
} else if (tag == "kbd") {
|
|
r_state = DOC_LINE_IN_KBD;
|
|
}
|
|
} break;
|
|
case DOC_LINE_IN_CODE: {
|
|
int pos = line.find("[/code]", from);
|
|
if (pos < 0) {
|
|
process = false;
|
|
break;
|
|
}
|
|
|
|
from = pos + 7; // `len("[/code]")`.
|
|
|
|
r_state = DOC_LINE_NORMAL;
|
|
} break;
|
|
case DOC_LINE_IN_CODEBLOCK: {
|
|
int pos = line.find("[/codeblock]", from);
|
|
if (pos < 0) {
|
|
process = false;
|
|
break;
|
|
}
|
|
|
|
from = pos + 12; // `len("[/codeblock]")`.
|
|
|
|
if (pos == 0) {
|
|
line_join = "\n";
|
|
} else {
|
|
result += line.substr(buffer_start, pos - buffer_start) + '\n';
|
|
}
|
|
result += "[/codeblock]";
|
|
if (from < len) {
|
|
result += '\n';
|
|
}
|
|
|
|
r_state = DOC_LINE_NORMAL;
|
|
buffer_start = from;
|
|
} break;
|
|
case DOC_LINE_IN_KBD: {
|
|
int pos = line.find("[/kbd]", from);
|
|
if (pos < 0) {
|
|
process = false;
|
|
break;
|
|
}
|
|
|
|
from = pos + 6; // `len("[/kbd]")`.
|
|
|
|
r_state = DOC_LINE_NORMAL;
|
|
} break;
|
|
}
|
|
}
|
|
|
|
result += line.substr(buffer_start);
|
|
if (r_state == DOC_LINE_NORMAL) {
|
|
result = result.strip_edges(false, true);
|
|
}
|
|
|
|
return line_join + result;
|
|
}
|
|
|
|
bool GDScriptParser::has_comment(int p_line, bool p_must_be_doc) {
|
|
bool has_comment = tokenizer->get_comments().has(p_line);
|
|
// If there are no comments or if we don't care whether the comment
|
|
// is a docstring, we have our result.
|
|
if (!p_must_be_doc || !has_comment) {
|
|
return has_comment;
|
|
}
|
|
|
|
return tokenizer->get_comments()[p_line].comment.begins_with("##");
|
|
}
|
|
|
|
GDScriptParser::MemberDocData GDScriptParser::parse_doc_comment(int p_line, bool p_single_line) {
|
|
ERR_FAIL_COND_V(!has_comment(p_line, true), MemberDocData());
|
|
|
|
const HashMap<int, GDScriptTokenizer::CommentData> &comments = tokenizer->get_comments();
|
|
int line = p_line;
|
|
|
|
if (!p_single_line) {
|
|
while (comments.has(line - 1) && comments[line - 1].new_line && comments[line - 1].comment.begins_with("##")) {
|
|
line--;
|
|
}
|
|
}
|
|
|
|
max_script_doc_line = MIN(max_script_doc_line, line - 1);
|
|
|
|
String space_prefix;
|
|
{
|
|
int i = 2;
|
|
for (; i < comments[line].comment.length(); i++) {
|
|
if (comments[line].comment[i] != ' ') {
|
|
break;
|
|
}
|
|
}
|
|
space_prefix = String(" ").repeat(i - 2);
|
|
}
|
|
|
|
DocLineState state = DOC_LINE_NORMAL;
|
|
MemberDocData result;
|
|
|
|
while (line <= p_line) {
|
|
String doc_line = comments[line].comment.trim_prefix("##");
|
|
line++;
|
|
|
|
if (state == DOC_LINE_NORMAL) {
|
|
String stripped_line = doc_line.strip_edges();
|
|
if (stripped_line == "@deprecated" || stripped_line.begins_with("@deprecated:")) {
|
|
result.is_deprecated = true;
|
|
if (stripped_line.begins_with("@deprecated:")) {
|
|
result.deprecated_message = stripped_line.trim_prefix("@deprecated:").strip_edges();
|
|
}
|
|
continue;
|
|
} else if (stripped_line == "@experimental" || stripped_line.begins_with("@experimental:")) {
|
|
result.is_experimental = true;
|
|
if (stripped_line.begins_with("@experimental:")) {
|
|
result.experimental_message = stripped_line.trim_prefix("@experimental:").strip_edges();
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
result.description += _process_doc_line(doc_line, result.description, space_prefix, state);
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
GDScriptParser::ClassDocData GDScriptParser::parse_class_doc_comment(int p_line, bool p_single_line) {
|
|
ERR_FAIL_COND_V(!has_comment(p_line, true), ClassDocData());
|
|
|
|
const HashMap<int, GDScriptTokenizer::CommentData> &comments = tokenizer->get_comments();
|
|
int line = p_line;
|
|
|
|
if (!p_single_line) {
|
|
while (comments.has(line - 1) && comments[line - 1].new_line && comments[line - 1].comment.begins_with("##")) {
|
|
line--;
|
|
}
|
|
}
|
|
|
|
max_script_doc_line = MIN(max_script_doc_line, line - 1);
|
|
|
|
String space_prefix;
|
|
{
|
|
int i = 2;
|
|
for (; i < comments[line].comment.length(); i++) {
|
|
if (comments[line].comment[i] != ' ') {
|
|
break;
|
|
}
|
|
}
|
|
space_prefix = String(" ").repeat(i - 2);
|
|
}
|
|
|
|
DocLineState state = DOC_LINE_NORMAL;
|
|
bool is_in_brief = true;
|
|
ClassDocData result;
|
|
|
|
while (line <= p_line) {
|
|
String doc_line = comments[line].comment.trim_prefix("##");
|
|
line++;
|
|
|
|
if (state == DOC_LINE_NORMAL) {
|
|
String stripped_line = doc_line.strip_edges();
|
|
|
|
// A blank line separates the description from the brief.
|
|
if (is_in_brief && !result.brief.is_empty() && stripped_line.is_empty()) {
|
|
is_in_brief = false;
|
|
continue;
|
|
}
|
|
|
|
if (stripped_line.begins_with("@tutorial")) {
|
|
String title, link;
|
|
|
|
int begin_scan = String("@tutorial").length();
|
|
if (begin_scan >= stripped_line.length()) {
|
|
continue; // Invalid syntax.
|
|
}
|
|
|
|
if (stripped_line[begin_scan] == ':') { // No title.
|
|
// Syntax: ## @tutorial: https://godotengine.org/ // The title argument is optional.
|
|
title = "";
|
|
link = stripped_line.trim_prefix("@tutorial:").strip_edges();
|
|
} else {
|
|
/* Syntax:
|
|
* @tutorial ( The Title Here ) : https://the.url/
|
|
* ^ open ^ close ^ colon ^ url
|
|
*/
|
|
int open_bracket_pos = begin_scan, close_bracket_pos = 0;
|
|
while (open_bracket_pos < stripped_line.length() && (stripped_line[open_bracket_pos] == ' ' || stripped_line[open_bracket_pos] == '\t')) {
|
|
open_bracket_pos++;
|
|
}
|
|
if (open_bracket_pos == stripped_line.length() || stripped_line[open_bracket_pos++] != '(') {
|
|
continue; // Invalid syntax.
|
|
}
|
|
close_bracket_pos = open_bracket_pos;
|
|
while (close_bracket_pos < stripped_line.length() && stripped_line[close_bracket_pos] != ')') {
|
|
close_bracket_pos++;
|
|
}
|
|
if (close_bracket_pos == stripped_line.length()) {
|
|
continue; // Invalid syntax.
|
|
}
|
|
|
|
int colon_pos = close_bracket_pos + 1;
|
|
while (colon_pos < stripped_line.length() && (stripped_line[colon_pos] == ' ' || stripped_line[colon_pos] == '\t')) {
|
|
colon_pos++;
|
|
}
|
|
if (colon_pos == stripped_line.length() || stripped_line[colon_pos++] != ':') {
|
|
continue; // Invalid syntax.
|
|
}
|
|
|
|
title = stripped_line.substr(open_bracket_pos, close_bracket_pos - open_bracket_pos).strip_edges();
|
|
link = stripped_line.substr(colon_pos).strip_edges();
|
|
}
|
|
|
|
result.tutorials.append(Pair<String, String>(title, link));
|
|
continue;
|
|
} else if (stripped_line == "@deprecated" || stripped_line.begins_with("@deprecated:")) {
|
|
result.is_deprecated = true;
|
|
if (stripped_line.begins_with("@deprecated:")) {
|
|
result.deprecated_message = stripped_line.trim_prefix("@deprecated:").strip_edges();
|
|
}
|
|
continue;
|
|
} else if (stripped_line == "@experimental" || stripped_line.begins_with("@experimental:")) {
|
|
result.is_experimental = true;
|
|
if (stripped_line.begins_with("@experimental:")) {
|
|
result.experimental_message = stripped_line.trim_prefix("@experimental:").strip_edges();
|
|
}
|
|
continue;
|
|
}
|
|
}
|
|
|
|
if (is_in_brief) {
|
|
result.brief += _process_doc_line(doc_line, result.brief, space_prefix, state);
|
|
} else {
|
|
result.description += _process_doc_line(doc_line, result.description, space_prefix, state);
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
#endif // TOOLS_ENABLED
|
|
|
|
GDScriptParser::ParseRule *GDScriptParser::get_rule(GDScriptTokenizer::Token::Type p_token_type) {
|
|
// Function table for expression parsing.
|
|
// clang-format destroys the alignment here, so turn off for the table.
|
|
/* clang-format off */
|
|
static ParseRule rules[] = {
|
|
// PREFIX INFIX PRECEDENCE (for infix)
|
|
{ nullptr, nullptr, PREC_NONE }, // EMPTY,
|
|
// Basic
|
|
{ nullptr, nullptr, PREC_NONE }, // ANNOTATION,
|
|
{ &GDScriptParser::parse_identifier, nullptr, PREC_NONE }, // IDENTIFIER,
|
|
{ &GDScriptParser::parse_literal, nullptr, PREC_NONE }, // LITERAL,
|
|
// Comparison
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_COMPARISON }, // LESS,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_COMPARISON }, // LESS_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_COMPARISON }, // GREATER,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_COMPARISON }, // GREATER_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_COMPARISON }, // EQUAL_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_COMPARISON }, // BANG_EQUAL,
|
|
// Logical
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_LOGIC_AND }, // AND,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_LOGIC_OR }, // OR,
|
|
{ &GDScriptParser::parse_unary_operator, &GDScriptParser::parse_binary_not_in_operator, PREC_CONTENT_TEST }, // NOT,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_LOGIC_AND }, // AMPERSAND_AMPERSAND,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_LOGIC_OR }, // PIPE_PIPE,
|
|
{ &GDScriptParser::parse_unary_operator, nullptr, PREC_NONE }, // BANG,
|
|
// Bitwise
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_BIT_AND }, // AMPERSAND,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_BIT_OR }, // PIPE,
|
|
{ &GDScriptParser::parse_unary_operator, nullptr, PREC_NONE }, // TILDE,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_BIT_XOR }, // CARET,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_BIT_SHIFT }, // LESS_LESS,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_BIT_SHIFT }, // GREATER_GREATER,
|
|
// Math
|
|
{ &GDScriptParser::parse_unary_operator, &GDScriptParser::parse_binary_operator, PREC_ADDITION_SUBTRACTION }, // PLUS,
|
|
{ &GDScriptParser::parse_unary_operator, &GDScriptParser::parse_binary_operator, PREC_ADDITION_SUBTRACTION }, // MINUS,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_FACTOR }, // STAR,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_POWER }, // STAR_STAR,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_FACTOR }, // SLASH,
|
|
{ &GDScriptParser::parse_get_node, &GDScriptParser::parse_binary_operator, PREC_FACTOR }, // PERCENT,
|
|
// Assignment
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // PLUS_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // MINUS_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // STAR_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // STAR_STAR_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // SLASH_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // PERCENT_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // LESS_LESS_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // GREATER_GREATER_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // AMPERSAND_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // PIPE_EQUAL,
|
|
{ nullptr, &GDScriptParser::parse_assignment, PREC_ASSIGNMENT }, // CARET_EQUAL,
|
|
// Control flow
|
|
{ nullptr, &GDScriptParser::parse_ternary_operator, PREC_TERNARY }, // IF,
|
|
{ nullptr, nullptr, PREC_NONE }, // ELIF,
|
|
{ nullptr, nullptr, PREC_NONE }, // ELSE,
|
|
{ nullptr, nullptr, PREC_NONE }, // FOR,
|
|
{ nullptr, nullptr, PREC_NONE }, // WHILE,
|
|
{ nullptr, nullptr, PREC_NONE }, // BREAK,
|
|
{ nullptr, nullptr, PREC_NONE }, // CONTINUE,
|
|
{ nullptr, nullptr, PREC_NONE }, // PASS,
|
|
{ nullptr, nullptr, PREC_NONE }, // RETURN,
|
|
{ nullptr, nullptr, PREC_NONE }, // MATCH,
|
|
{ nullptr, nullptr, PREC_NONE }, // WHEN,
|
|
// Keywords
|
|
{ nullptr, &GDScriptParser::parse_cast, PREC_CAST }, // AS,
|
|
{ nullptr, nullptr, PREC_NONE }, // ASSERT,
|
|
{ &GDScriptParser::parse_await, nullptr, PREC_NONE }, // AWAIT,
|
|
{ nullptr, nullptr, PREC_NONE }, // BREAKPOINT,
|
|
{ nullptr, nullptr, PREC_NONE }, // CLASS,
|
|
{ nullptr, nullptr, PREC_NONE }, // CLASS_NAME,
|
|
{ nullptr, nullptr, PREC_NONE }, // CONST,
|
|
{ nullptr, nullptr, PREC_NONE }, // ENUM,
|
|
{ nullptr, nullptr, PREC_NONE }, // EXTENDS,
|
|
{ &GDScriptParser::parse_lambda, nullptr, PREC_NONE }, // FUNC,
|
|
{ nullptr, &GDScriptParser::parse_binary_operator, PREC_CONTENT_TEST }, // IN,
|
|
{ nullptr, &GDScriptParser::parse_type_test, PREC_TYPE_TEST }, // IS,
|
|
{ nullptr, nullptr, PREC_NONE }, // NAMESPACE,
|
|
{ &GDScriptParser::parse_preload, nullptr, PREC_NONE }, // PRELOAD,
|
|
{ &GDScriptParser::parse_self, nullptr, PREC_NONE }, // SELF,
|
|
{ nullptr, nullptr, PREC_NONE }, // SIGNAL,
|
|
{ nullptr, nullptr, PREC_NONE }, // STATIC,
|
|
{ &GDScriptParser::parse_call, nullptr, PREC_NONE }, // SUPER,
|
|
{ nullptr, nullptr, PREC_NONE }, // TRAIT,
|
|
{ nullptr, nullptr, PREC_NONE }, // VAR,
|
|
{ nullptr, nullptr, PREC_NONE }, // VOID,
|
|
{ &GDScriptParser::parse_yield, nullptr, PREC_NONE }, // YIELD,
|
|
// Punctuation
|
|
{ &GDScriptParser::parse_array, &GDScriptParser::parse_subscript, PREC_SUBSCRIPT }, // BRACKET_OPEN,
|
|
{ nullptr, nullptr, PREC_NONE }, // BRACKET_CLOSE,
|
|
{ &GDScriptParser::parse_dictionary, nullptr, PREC_NONE }, // BRACE_OPEN,
|
|
{ nullptr, nullptr, PREC_NONE }, // BRACE_CLOSE,
|
|
{ &GDScriptParser::parse_grouping, &GDScriptParser::parse_call, PREC_CALL }, // PARENTHESIS_OPEN,
|
|
{ nullptr, nullptr, PREC_NONE }, // PARENTHESIS_CLOSE,
|
|
{ nullptr, nullptr, PREC_NONE }, // COMMA,
|
|
{ nullptr, nullptr, PREC_NONE }, // SEMICOLON,
|
|
{ nullptr, &GDScriptParser::parse_attribute, PREC_ATTRIBUTE }, // PERIOD,
|
|
{ nullptr, nullptr, PREC_NONE }, // PERIOD_PERIOD,
|
|
{ nullptr, nullptr, PREC_NONE }, // COLON,
|
|
{ &GDScriptParser::parse_get_node, nullptr, PREC_NONE }, // DOLLAR,
|
|
{ nullptr, nullptr, PREC_NONE }, // FORWARD_ARROW,
|
|
{ nullptr, nullptr, PREC_NONE }, // UNDERSCORE,
|
|
// Whitespace
|
|
{ nullptr, nullptr, PREC_NONE }, // NEWLINE,
|
|
{ nullptr, nullptr, PREC_NONE }, // INDENT,
|
|
{ nullptr, nullptr, PREC_NONE }, // DEDENT,
|
|
// Constants
|
|
{ &GDScriptParser::parse_builtin_constant, nullptr, PREC_NONE }, // CONST_PI,
|
|
{ &GDScriptParser::parse_builtin_constant, nullptr, PREC_NONE }, // CONST_TAU,
|
|
{ &GDScriptParser::parse_builtin_constant, nullptr, PREC_NONE }, // CONST_INF,
|
|
{ &GDScriptParser::parse_builtin_constant, nullptr, PREC_NONE }, // CONST_NAN,
|
|
// Error message improvement
|
|
{ nullptr, nullptr, PREC_NONE }, // VCS_CONFLICT_MARKER,
|
|
{ nullptr, nullptr, PREC_NONE }, // BACKTICK,
|
|
{ nullptr, &GDScriptParser::parse_invalid_token, PREC_CAST }, // QUESTION_MARK,
|
|
// Special
|
|
{ nullptr, nullptr, PREC_NONE }, // ERROR,
|
|
{ nullptr, nullptr, PREC_NONE }, // TK_EOF,
|
|
};
|
|
/* clang-format on */
|
|
// Avoid desync.
|
|
static_assert(sizeof(rules) / sizeof(rules[0]) == GDScriptTokenizer::Token::TK_MAX, "Amount of parse rules don't match the amount of token types.");
|
|
|
|
// Let's assume this is never invalid, since nothing generates a TK_MAX.
|
|
return &rules[p_token_type];
|
|
}
|
|
|
|
bool GDScriptParser::SuiteNode::has_local(const StringName &p_name) const {
|
|
if (locals_indices.has(p_name)) {
|
|
return true;
|
|
}
|
|
if (parent_block != nullptr) {
|
|
return parent_block->has_local(p_name);
|
|
}
|
|
return false;
|
|
}
|
|
|
|
const GDScriptParser::SuiteNode::Local &GDScriptParser::SuiteNode::get_local(const StringName &p_name) const {
|
|
if (locals_indices.has(p_name)) {
|
|
return locals[locals_indices[p_name]];
|
|
}
|
|
if (parent_block != nullptr) {
|
|
return parent_block->get_local(p_name);
|
|
}
|
|
return empty;
|
|
}
|
|
|
|
bool GDScriptParser::AnnotationNode::apply(GDScriptParser *p_this, Node *p_target, ClassNode *p_class) {
|
|
if (is_applied) {
|
|
return true;
|
|
}
|
|
is_applied = true;
|
|
return (p_this->*(p_this->valid_annotations[name].apply))(this, p_target, p_class);
|
|
}
|
|
|
|
bool GDScriptParser::AnnotationNode::applies_to(uint32_t p_target_kinds) const {
|
|
return (info->target_kind & p_target_kinds) > 0;
|
|
}
|
|
|
|
bool GDScriptParser::validate_annotation_arguments(AnnotationNode *p_annotation) {
|
|
ERR_FAIL_COND_V_MSG(!valid_annotations.has(p_annotation->name), false, vformat(R"(Annotation "%s" not found to validate.)", p_annotation->name));
|
|
|
|
const MethodInfo &info = valid_annotations[p_annotation->name].info;
|
|
|
|
if (((info.flags & METHOD_FLAG_VARARG) == 0) && p_annotation->arguments.size() > info.arguments.size()) {
|
|
push_error(vformat(R"(Annotation "%s" requires at most %d arguments, but %d were given.)", p_annotation->name, info.arguments.size(), p_annotation->arguments.size()));
|
|
return false;
|
|
}
|
|
|
|
if (p_annotation->arguments.size() < info.arguments.size() - info.default_arguments.size()) {
|
|
push_error(vformat(R"(Annotation "%s" requires at least %d arguments, but %d were given.)", p_annotation->name, info.arguments.size() - info.default_arguments.size(), p_annotation->arguments.size()));
|
|
return false;
|
|
}
|
|
|
|
// Some annotations need to be resolved in the parser.
|
|
if (p_annotation->name == SNAME("@icon")) {
|
|
ExpressionNode *argument = p_annotation->arguments[0];
|
|
|
|
if (argument->type != Node::LITERAL) {
|
|
push_error(R"(Argument 1 of annotation "@icon" must be a string literal.)", argument);
|
|
return false;
|
|
}
|
|
|
|
Variant value = static_cast<LiteralNode *>(argument)->value;
|
|
|
|
if (value.get_type() != Variant::STRING) {
|
|
push_error(R"(Argument 1 of annotation "@icon" must be a string literal.)", argument);
|
|
return false;
|
|
}
|
|
|
|
p_annotation->resolved_arguments.push_back(value);
|
|
}
|
|
|
|
// For other annotations, see `GDScriptAnalyzer::resolve_annotation()`.
|
|
|
|
return true;
|
|
}
|
|
|
|
bool GDScriptParser::tool_annotation(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
|
|
#ifdef DEBUG_ENABLED
|
|
if (_is_tool) {
|
|
push_error(R"("@tool" annotation can only be used once.)", p_annotation);
|
|
return false;
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
_is_tool = true;
|
|
return true;
|
|
}
|
|
|
|
bool GDScriptParser::icon_annotation(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
|
|
ERR_FAIL_COND_V_MSG(p_target->type != Node::CLASS, false, R"("@icon" annotation can only be applied to classes.)");
|
|
ERR_FAIL_COND_V(p_annotation->resolved_arguments.is_empty(), false);
|
|
|
|
ClassNode *class_node = static_cast<ClassNode *>(p_target);
|
|
String path = p_annotation->resolved_arguments[0];
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
if (!class_node->icon_path.is_empty()) {
|
|
push_error(R"("@icon" annotation can only be used once.)", p_annotation);
|
|
return false;
|
|
}
|
|
if (path.is_empty()) {
|
|
push_error(R"("@icon" annotation argument must contain the path to the icon.)", p_annotation->arguments[0]);
|
|
return false;
|
|
}
|
|
#endif // DEBUG_ENABLED
|
|
|
|
class_node->icon_path = path;
|
|
|
|
if (path.is_empty() || path.is_absolute_path()) {
|
|
class_node->simplified_icon_path = path.simplify_path();
|
|
} else if (path.is_relative_path()) {
|
|
class_node->simplified_icon_path = script_path.get_base_dir().path_join(path).simplify_path();
|
|
} else {
|
|
class_node->simplified_icon_path = path;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool GDScriptParser::onready_annotation(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
|
|
ERR_FAIL_COND_V_MSG(p_target->type != Node::VARIABLE, false, R"("@onready" annotation can only be applied to class variables.)");
|
|
|
|
if (current_class && !ClassDB::is_parent_class(current_class->get_datatype().native_type, SNAME("Node"))) {
|
|
push_error(R"("@onready" can only be used in classes that inherit "Node".)", p_annotation);
|
|
return false;
|
|
}
|
|
|
|
VariableNode *variable = static_cast<VariableNode *>(p_target);
|
|
if (variable->is_static) {
|
|
push_error(R"("@onready" annotation cannot be applied to a static variable.)", p_annotation);
|
|
return false;
|
|
}
|
|
if (variable->onready) {
|
|
push_error(R"("@onready" annotation can only be used once per variable.)", p_annotation);
|
|
return false;
|
|
}
|
|
variable->onready = true;
|
|
current_class->onready_used = true;
|
|
return true;
|
|
}
|
|
|
|
static String _get_annotation_error_string(const StringName &p_annotation_name, const Vector<Variant::Type> &p_expected_types, const GDScriptParser::DataType &p_provided_type) {
|
|
Vector<String> types;
|
|
for (int i = 0; i < p_expected_types.size(); i++) {
|
|
const Variant::Type &type = p_expected_types[i];
|
|
types.push_back(Variant::get_type_name(type));
|
|
types.push_back("Array[" + Variant::get_type_name(type) + "]");
|
|
switch (type) {
|
|
case Variant::INT:
|
|
types.push_back("PackedByteArray");
|
|
types.push_back("PackedInt32Array");
|
|
types.push_back("PackedInt64Array");
|
|
break;
|
|
case Variant::FLOAT:
|
|
types.push_back("PackedFloat32Array");
|
|
types.push_back("PackedFloat64Array");
|
|
break;
|
|
case Variant::STRING:
|
|
types.push_back("PackedStringArray");
|
|
break;
|
|
case Variant::VECTOR2:
|
|
types.push_back("PackedVector2Array");
|
|
break;
|
|
case Variant::VECTOR3:
|
|
types.push_back("PackedVector3Array");
|
|
break;
|
|
case Variant::COLOR:
|
|
types.push_back("PackedColorArray");
|
|
break;
|
|
case Variant::VECTOR4:
|
|
types.push_back("PackedVector4Array");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
String string;
|
|
if (types.size() == 1) {
|
|
string = types[0].quote();
|
|
} else if (types.size() == 2) {
|
|
string = types[0].quote() + " or " + types[1].quote();
|
|
} else if (types.size() >= 3) {
|
|
string = types[0].quote();
|
|
for (int i = 1; i < types.size() - 1; i++) {
|
|
string += ", " + types[i].quote();
|
|
}
|
|
string += ", or " + types[types.size() - 1].quote();
|
|
}
|
|
|
|
return vformat(R"("%s" annotation requires a variable of type %s, but type "%s" was given instead.)", p_annotation_name, string, p_provided_type.to_string());
|
|
}
|
|
|
|
static StringName _find_narrowest_native_or_global_class(const GDScriptParser::DataType &p_type) {
|
|
switch (p_type.kind) {
|
|
case GDScriptParser::DataType::NATIVE: {
|
|
if (p_type.is_meta_type) {
|
|
return Object::get_class_static(); // `GDScriptNativeClass` is not an exposed class.
|
|
}
|
|
return p_type.native_type;
|
|
} break;
|
|
case GDScriptParser::DataType::SCRIPT: {
|
|
Ref<Script> script;
|
|
if (p_type.script_type.is_valid()) {
|
|
script = p_type.script_type;
|
|
} else {
|
|
script = ResourceLoader::load(p_type.script_path, SNAME("Script"));
|
|
}
|
|
|
|
if (p_type.is_meta_type) {
|
|
return script.is_valid() ? script->get_class() : Script::get_class_static();
|
|
}
|
|
if (script.is_null()) {
|
|
return p_type.native_type;
|
|
}
|
|
if (script->get_global_name() != StringName()) {
|
|
return script->get_global_name();
|
|
}
|
|
|
|
Ref<Script> base_script = script->get_base_script();
|
|
if (base_script.is_null()) {
|
|
return script->get_instance_base_type();
|
|
}
|
|
|
|
GDScriptParser::DataType base_type;
|
|
base_type.kind = GDScriptParser::DataType::SCRIPT;
|
|
base_type.builtin_type = Variant::OBJECT;
|
|
base_type.native_type = base_script->get_instance_base_type();
|
|
base_type.script_type = base_script;
|
|
base_type.script_path = base_script->get_path();
|
|
|
|
return _find_narrowest_native_or_global_class(base_type);
|
|
} break;
|
|
case GDScriptParser::DataType::CLASS: {
|
|
if (p_type.is_meta_type) {
|
|
return GDScript::get_class_static();
|
|
}
|
|
if (p_type.class_type == nullptr) {
|
|
return p_type.native_type;
|
|
}
|
|
if (p_type.class_type->get_global_name() != StringName()) {
|
|
return p_type.class_type->get_global_name();
|
|
}
|
|
return _find_narrowest_native_or_global_class(p_type.class_type->base_type);
|
|
} break;
|
|
default: {
|
|
ERR_FAIL_V(StringName());
|
|
} break;
|
|
}
|
|
}
|
|
|
|
template <PropertyHint t_hint, Variant::Type t_type>
|
|
bool GDScriptParser::export_annotations(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
|
|
ERR_FAIL_COND_V_MSG(p_target->type != Node::VARIABLE, false, vformat(R"("%s" annotation can only be applied to variables.)", p_annotation->name));
|
|
ERR_FAIL_NULL_V(p_class, false);
|
|
|
|
VariableNode *variable = static_cast<VariableNode *>(p_target);
|
|
if (variable->is_static) {
|
|
push_error(vformat(R"(Annotation "%s" cannot be applied to a static variable.)", p_annotation->name), p_annotation);
|
|
return false;
|
|
}
|
|
if (variable->exported) {
|
|
push_error(vformat(R"(Annotation "%s" cannot be used with another "@export" annotation.)", p_annotation->name), p_annotation);
|
|
return false;
|
|
}
|
|
|
|
variable->exported = true;
|
|
|
|
variable->export_info.type = t_type;
|
|
variable->export_info.hint = t_hint;
|
|
|
|
String hint_string;
|
|
for (int i = 0; i < p_annotation->resolved_arguments.size(); i++) {
|
|
String arg_string = String(p_annotation->resolved_arguments[i]);
|
|
|
|
if (p_annotation->name != SNAME("@export_placeholder")) {
|
|
if (arg_string.is_empty()) {
|
|
push_error(vformat(R"(Argument %d of annotation "%s" is empty.)", i + 1, p_annotation->name), p_annotation->arguments[i]);
|
|
return false;
|
|
}
|
|
if (arg_string.contains(",")) {
|
|
push_error(vformat(R"(Argument %d of annotation "%s" contains a comma. Use separate arguments instead.)", i + 1, p_annotation->name), p_annotation->arguments[i]);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
// WARNING: Do not merge with the previous `if` because there `!=`, not `==`!
|
|
if (p_annotation->name == SNAME("@export_flags")) {
|
|
const int64_t max_flags = 32;
|
|
Vector<String> t = arg_string.split(":", true, 1);
|
|
if (t[0].is_empty()) {
|
|
push_error(vformat(R"(Invalid argument %d of annotation "@export_flags": Expected flag name.)", i + 1), p_annotation->arguments[i]);
|
|
return false;
|
|
}
|
|
if (t.size() == 2) {
|
|
if (t[1].is_empty()) {
|
|
push_error(vformat(R"(Invalid argument %d of annotation "@export_flags": Expected flag value.)", i + 1), p_annotation->arguments[i]);
|
|
return false;
|
|
}
|
|
if (!t[1].is_valid_int()) {
|
|
push_error(vformat(R"(Invalid argument %d of annotation "@export_flags": The flag value must be a valid integer.)", i + 1), p_annotation->arguments[i]);
|
|
return false;
|
|
}
|
|
int64_t value = t[1].to_int();
|
|
if (value < 1 || value >= (1LL << max_flags)) {
|
|
push_error(vformat(R"(Invalid argument %d of annotation "@export_flags": The flag value must be at least 1 and at most 2 ** %d - 1.)", i + 1, max_flags), p_annotation->arguments[i]);
|
|
return false;
|
|
}
|
|
} else if (i >= max_flags) {
|
|
push_error(vformat(R"(Invalid argument %d of annotation "@export_flags": Starting from argument %d, the flag value must be specified explicitly.)", i + 1, max_flags + 1), p_annotation->arguments[i]);
|
|
return false;
|
|
}
|
|
} else if (p_annotation->name == SNAME("@export_node_path")) {
|
|
String native_class = arg_string;
|
|
if (ScriptServer::is_global_class(arg_string)) {
|
|
native_class = ScriptServer::get_global_class_native_base(arg_string);
|
|
}
|
|
if (!ClassDB::class_exists(native_class)) {
|
|
push_error(vformat(R"(Invalid argument %d of annotation "@export_node_path": The class "%s" was not found in the global scope.)", i + 1, arg_string), p_annotation->arguments[i]);
|
|
return false;
|
|
} else if (!ClassDB::is_parent_class(native_class, SNAME("Node"))) {
|
|
push_error(vformat(R"(Invalid argument %d of annotation "@export_node_path": The class "%s" does not inherit "Node".)", i + 1, arg_string), p_annotation->arguments[i]);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (i > 0) {
|
|
hint_string += ",";
|
|
}
|
|
hint_string += arg_string;
|
|
}
|
|
variable->export_info.hint_string = hint_string;
|
|
|
|
// This is called after the analyzer is done finding the type, so this should be set here.
|
|
DataType export_type = variable->get_datatype();
|
|
|
|
// Use initializer type if specified type is `Variant`.
|
|
if (export_type.is_variant() && variable->initializer != nullptr && variable->initializer->datatype.is_set()) {
|
|
export_type = variable->initializer->get_datatype();
|
|
export_type.type_source = DataType::INFERRED;
|
|
}
|
|
|
|
const Variant::Type original_export_type_builtin = export_type.builtin_type;
|
|
|
|
// Process array and packed array annotations on the element type.
|
|
bool is_array = false;
|
|
if (export_type.builtin_type == Variant::ARRAY && export_type.has_container_element_type(0)) {
|
|
is_array = true;
|
|
export_type = export_type.get_container_element_type(0);
|
|
} else if (export_type.is_typed_container_type()) {
|
|
is_array = true;
|
|
export_type = export_type.get_typed_container_type();
|
|
export_type.type_source = variable->datatype.type_source;
|
|
}
|
|
|
|
bool use_default_variable_type_check = true;
|
|
|
|
if (p_annotation->name == SNAME("@export_range")) {
|
|
if (export_type.builtin_type == Variant::INT) {
|
|
variable->export_info.type = Variant::INT;
|
|
}
|
|
} else if (p_annotation->name == SNAME("@export_multiline")) {
|
|
use_default_variable_type_check = false;
|
|
|
|
if (export_type.builtin_type != Variant::STRING && export_type.builtin_type != Variant::DICTIONARY) {
|
|
Vector<Variant::Type> expected_types = { Variant::STRING, Variant::DICTIONARY };
|
|
push_error(_get_annotation_error_string(p_annotation->name, expected_types, variable->get_datatype()), p_annotation);
|
|
return false;
|
|
}
|
|
|
|
if (export_type.builtin_type == Variant::DICTIONARY) {
|
|
variable->export_info.type = Variant::DICTIONARY;
|
|
}
|
|
} else if (p_annotation->name == SNAME("@export")) {
|
|
use_default_variable_type_check = false;
|
|
|
|
if (variable->datatype_specifier == nullptr && variable->initializer == nullptr) {
|
|
push_error(R"(Cannot use simple "@export" annotation with variable without type or initializer, since type can't be inferred.)", p_annotation);
|
|
return false;
|
|
}
|
|
|
|
if (export_type.is_variant() || export_type.has_no_type()) {
|
|
push_error(R"(Cannot use simple "@export" annotation because the type of the initialized value can't be inferred.)", p_annotation);
|
|
return false;
|
|
}
|
|
|
|
switch (export_type.kind) {
|
|
case GDScriptParser::DataType::BUILTIN:
|
|
variable->export_info.type = export_type.builtin_type;
|
|
variable->export_info.hint = PROPERTY_HINT_NONE;
|
|
variable->export_info.hint_string = String();
|
|
break;
|
|
case GDScriptParser::DataType::NATIVE:
|
|
case GDScriptParser::DataType::SCRIPT:
|
|
case GDScriptParser::DataType::CLASS: {
|
|
const StringName class_name = _find_narrowest_native_or_global_class(export_type);
|
|
if (ClassDB::is_parent_class(export_type.native_type, SNAME("Resource"))) {
|
|
variable->export_info.type = Variant::OBJECT;
|
|
variable->export_info.hint = PROPERTY_HINT_RESOURCE_TYPE;
|
|
variable->export_info.hint_string = class_name;
|
|
} else if (ClassDB::is_parent_class(export_type.native_type, SNAME("Node"))) {
|
|
variable->export_info.type = Variant::OBJECT;
|
|
variable->export_info.hint = PROPERTY_HINT_NODE_TYPE;
|
|
variable->export_info.hint_string = class_name;
|
|
} else {
|
|
push_error(R"(Export type can only be built-in, a resource, a node, or an enum.)", p_annotation);
|
|
return false;
|
|
}
|
|
} break;
|
|
case GDScriptParser::DataType::ENUM: {
|
|
if (export_type.is_meta_type) {
|
|
variable->export_info.type = Variant::DICTIONARY;
|
|
} else {
|
|
variable->export_info.type = Variant::INT;
|
|
variable->export_info.hint = PROPERTY_HINT_ENUM;
|
|
|
|
String enum_hint_string;
|
|
bool first = true;
|
|
for (const KeyValue<StringName, int64_t> &E : export_type.enum_values) {
|
|
if (!first) {
|
|
enum_hint_string += ",";
|
|
} else {
|
|
first = false;
|
|
}
|
|
enum_hint_string += E.key.operator String().capitalize().xml_escape();
|
|
enum_hint_string += ":";
|
|
enum_hint_string += String::num_int64(E.value).xml_escape();
|
|
}
|
|
|
|
variable->export_info.hint_string = enum_hint_string;
|
|
variable->export_info.usage |= PROPERTY_USAGE_CLASS_IS_ENUM;
|
|
variable->export_info.class_name = String(export_type.native_type).replace("::", ".");
|
|
}
|
|
} break;
|
|
default:
|
|
push_error(R"(Export type can only be built-in, a resource, a node, or an enum.)", p_annotation);
|
|
return false;
|
|
}
|
|
|
|
if (variable->export_info.hint == PROPERTY_HINT_NODE_TYPE && !ClassDB::is_parent_class(p_class->base_type.native_type, SNAME("Node"))) {
|
|
push_error(vformat(R"(Node export is only supported in Node-derived classes, but the current class inherits "%s".)", p_class->base_type.to_string()), p_annotation);
|
|
return false;
|
|
}
|
|
} else if (p_annotation->name == SNAME("@export_enum")) {
|
|
use_default_variable_type_check = false;
|
|
|
|
Variant::Type enum_type = Variant::INT;
|
|
|
|
if (export_type.kind == DataType::BUILTIN && export_type.builtin_type == Variant::STRING) {
|
|
enum_type = Variant::STRING;
|
|
}
|
|
|
|
variable->export_info.type = enum_type;
|
|
|
|
if (!export_type.is_variant() && (export_type.kind != DataType::BUILTIN || export_type.builtin_type != enum_type)) {
|
|
Vector<Variant::Type> expected_types = { Variant::INT, Variant::STRING };
|
|
push_error(_get_annotation_error_string(p_annotation->name, expected_types, variable->get_datatype()), p_annotation);
|
|
return false;
|
|
}
|
|
}
|
|
|
|
if (use_default_variable_type_check) {
|
|
// Validate variable type with export.
|
|
if (!export_type.is_variant() && (export_type.kind != DataType::BUILTIN || export_type.builtin_type != t_type)) {
|
|
// Allow float/int conversion.
|
|
if ((t_type != Variant::FLOAT || export_type.builtin_type != Variant::INT) && (t_type != Variant::INT || export_type.builtin_type != Variant::FLOAT)) {
|
|
Vector<Variant::Type> expected_types = { t_type };
|
|
push_error(_get_annotation_error_string(p_annotation->name, expected_types, variable->get_datatype()), p_annotation);
|
|
return false;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (is_array) {
|
|
String hint_prefix = itos(variable->export_info.type);
|
|
if (variable->export_info.hint) {
|
|
hint_prefix += "/" + itos(variable->export_info.hint);
|
|
}
|
|
variable->export_info.type = original_export_type_builtin;
|
|
variable->export_info.hint = PROPERTY_HINT_TYPE_STRING;
|
|
variable->export_info.hint_string = hint_prefix + ":" + variable->export_info.hint_string;
|
|
variable->export_info.usage = PROPERTY_USAGE_DEFAULT;
|
|
variable->export_info.class_name = StringName();
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
// For `@export_storage` and `@export_custom`, there is no need to check the variable type, argument values,
|
|
// or handle array exports in a special way, so they are implemented as separate methods.
|
|
|
|
bool GDScriptParser::export_storage_annotation(AnnotationNode *p_annotation, Node *p_node, ClassNode *p_class) {
|
|
ERR_FAIL_COND_V_MSG(p_node->type != Node::VARIABLE, false, vformat(R"("%s" annotation can only be applied to variables.)", p_annotation->name));
|
|
|
|
VariableNode *variable = static_cast<VariableNode *>(p_node);
|
|
if (variable->is_static) {
|
|
push_error(vformat(R"(Annotation "%s" cannot be applied to a static variable.)", p_annotation->name), p_annotation);
|
|
return false;
|
|
}
|
|
if (variable->exported) {
|
|
push_error(vformat(R"(Annotation "%s" cannot be used with another "@export" annotation.)", p_annotation->name), p_annotation);
|
|
return false;
|
|
}
|
|
|
|
variable->exported = true;
|
|
|
|
// Save the info because the compiler uses export info for overwriting member info.
|
|
variable->export_info = variable->get_datatype().to_property_info(variable->identifier->name);
|
|
variable->export_info.usage |= PROPERTY_USAGE_STORAGE;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool GDScriptParser::export_custom_annotation(AnnotationNode *p_annotation, Node *p_node, ClassNode *p_class) {
|
|
ERR_FAIL_COND_V_MSG(p_node->type != Node::VARIABLE, false, vformat(R"("%s" annotation can only be applied to variables.)", p_annotation->name));
|
|
ERR_FAIL_COND_V_MSG(p_annotation->resolved_arguments.size() < 2, false, R"(Annotation "@export_custom" requires 2 arguments.)");
|
|
|
|
VariableNode *variable = static_cast<VariableNode *>(p_node);
|
|
if (variable->is_static) {
|
|
push_error(vformat(R"(Annotation "%s" cannot be applied to a static variable.)", p_annotation->name), p_annotation);
|
|
return false;
|
|
}
|
|
if (variable->exported) {
|
|
push_error(vformat(R"(Annotation "%s" cannot be used with another "@export" annotation.)", p_annotation->name), p_annotation);
|
|
return false;
|
|
}
|
|
|
|
variable->exported = true;
|
|
|
|
DataType export_type = variable->get_datatype();
|
|
|
|
variable->export_info.type = export_type.builtin_type;
|
|
variable->export_info.hint = static_cast<PropertyHint>(p_annotation->resolved_arguments[0].operator int64_t());
|
|
variable->export_info.hint_string = p_annotation->resolved_arguments[1];
|
|
|
|
if (p_annotation->resolved_arguments.size() >= 3) {
|
|
variable->export_info.usage = p_annotation->resolved_arguments[2].operator int64_t();
|
|
}
|
|
return true;
|
|
}
|
|
|
|
template <PropertyUsageFlags t_usage>
|
|
bool GDScriptParser::export_group_annotations(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
|
|
if (p_annotation->resolved_arguments.is_empty()) {
|
|
return false;
|
|
}
|
|
|
|
p_annotation->export_info.name = p_annotation->resolved_arguments[0];
|
|
|
|
switch (t_usage) {
|
|
case PROPERTY_USAGE_CATEGORY: {
|
|
p_annotation->export_info.usage = t_usage;
|
|
} break;
|
|
|
|
case PROPERTY_USAGE_GROUP: {
|
|
p_annotation->export_info.usage = t_usage;
|
|
if (p_annotation->resolved_arguments.size() == 2) {
|
|
p_annotation->export_info.hint_string = p_annotation->resolved_arguments[1];
|
|
}
|
|
} break;
|
|
|
|
case PROPERTY_USAGE_SUBGROUP: {
|
|
p_annotation->export_info.usage = t_usage;
|
|
if (p_annotation->resolved_arguments.size() == 2) {
|
|
p_annotation->export_info.hint_string = p_annotation->resolved_arguments[1];
|
|
}
|
|
} break;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool GDScriptParser::warning_annotations(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
|
|
#ifndef DEBUG_ENABLED
|
|
// Only available in debug builds.
|
|
return true;
|
|
#else // DEBUG_ENABLED
|
|
if (is_ignoring_warnings) {
|
|
return true; // We already ignore all warnings, let's optimize it.
|
|
}
|
|
|
|
bool has_error = false;
|
|
for (const Variant &warning_name : p_annotation->resolved_arguments) {
|
|
GDScriptWarning::Code warning_code = GDScriptWarning::get_code_from_name(String(warning_name).to_upper());
|
|
if (warning_code == GDScriptWarning::WARNING_MAX) {
|
|
push_error(vformat(R"(Invalid warning name: "%s".)", warning_name), p_annotation);
|
|
has_error = true;
|
|
} else {
|
|
int start_line = p_annotation->start_line;
|
|
int end_line = p_target->end_line;
|
|
|
|
switch (p_target->type) {
|
|
#define SIMPLE_CASE(m_type, m_class, m_property) \
|
|
case m_type: { \
|
|
m_class *node = static_cast<m_class *>(p_target); \
|
|
if (node->m_property == nullptr) { \
|
|
end_line = node->start_line; \
|
|
} else { \
|
|
end_line = node->m_property->end_line; \
|
|
} \
|
|
} break;
|
|
|
|
// Can contain properties (set/get).
|
|
SIMPLE_CASE(Node::VARIABLE, VariableNode, initializer)
|
|
|
|
// Contain bodies.
|
|
SIMPLE_CASE(Node::FOR, ForNode, list)
|
|
SIMPLE_CASE(Node::IF, IfNode, condition)
|
|
SIMPLE_CASE(Node::MATCH, MatchNode, test)
|
|
SIMPLE_CASE(Node::WHILE, WhileNode, condition)
|
|
#undef SIMPLE_CASE
|
|
|
|
case Node::CLASS: {
|
|
end_line = p_target->start_line;
|
|
for (const AnnotationNode *annotation : p_target->annotations) {
|
|
start_line = MIN(start_line, annotation->start_line);
|
|
end_line = MAX(end_line, annotation->end_line);
|
|
}
|
|
} break;
|
|
|
|
case Node::FUNCTION: {
|
|
// `@warning_ignore` on function has a controversial feature that is used in tests.
|
|
// It's better not to remove it for now, while there is no way to mass-ignore warnings.
|
|
} break;
|
|
|
|
case Node::MATCH_BRANCH: {
|
|
MatchBranchNode *branch = static_cast<MatchBranchNode *>(p_target);
|
|
end_line = branch->start_line;
|
|
for (int i = 0; i < branch->patterns.size(); i++) {
|
|
end_line = MAX(end_line, branch->patterns[i]->end_line);
|
|
}
|
|
} break;
|
|
|
|
default: {
|
|
} break;
|
|
}
|
|
|
|
end_line = MAX(start_line, end_line); // Prevent infinite loop.
|
|
for (int line = start_line; line <= end_line; line++) {
|
|
warning_ignored_lines[warning_code].insert(line);
|
|
}
|
|
}
|
|
}
|
|
return !has_error;
|
|
#endif // DEBUG_ENABLED
|
|
}
|
|
|
|
bool GDScriptParser::rpc_annotation(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
|
|
ERR_FAIL_COND_V_MSG(p_target->type != Node::FUNCTION, false, vformat(R"("%s" annotation can only be applied to functions.)", p_annotation->name));
|
|
|
|
FunctionNode *function = static_cast<FunctionNode *>(p_target);
|
|
if (function->rpc_config.get_type() != Variant::NIL) {
|
|
push_error(R"(RPC annotations can only be used once per function.)", p_annotation);
|
|
return false;
|
|
}
|
|
|
|
Dictionary rpc_config;
|
|
rpc_config["rpc_mode"] = MultiplayerAPI::RPC_MODE_AUTHORITY;
|
|
if (!p_annotation->resolved_arguments.is_empty()) {
|
|
unsigned char locality_args = 0;
|
|
unsigned char permission_args = 0;
|
|
unsigned char transfer_mode_args = 0;
|
|
|
|
for (int i = 0; i < p_annotation->resolved_arguments.size(); i++) {
|
|
if (i == 3) {
|
|
rpc_config["channel"] = p_annotation->resolved_arguments[i].operator int();
|
|
continue;
|
|
}
|
|
|
|
String arg = p_annotation->resolved_arguments[i].operator String();
|
|
if (arg == "call_local") {
|
|
locality_args++;
|
|
rpc_config["call_local"] = true;
|
|
} else if (arg == "call_remote") {
|
|
locality_args++;
|
|
rpc_config["call_local"] = false;
|
|
} else if (arg == "any_peer") {
|
|
permission_args++;
|
|
rpc_config["rpc_mode"] = MultiplayerAPI::RPC_MODE_ANY_PEER;
|
|
} else if (arg == "authority") {
|
|
permission_args++;
|
|
rpc_config["rpc_mode"] = MultiplayerAPI::RPC_MODE_AUTHORITY;
|
|
} else if (arg == "reliable") {
|
|
transfer_mode_args++;
|
|
rpc_config["transfer_mode"] = MultiplayerPeer::TRANSFER_MODE_RELIABLE;
|
|
} else if (arg == "unreliable") {
|
|
transfer_mode_args++;
|
|
rpc_config["transfer_mode"] = MultiplayerPeer::TRANSFER_MODE_UNRELIABLE;
|
|
} else if (arg == "unreliable_ordered") {
|
|
transfer_mode_args++;
|
|
rpc_config["transfer_mode"] = MultiplayerPeer::TRANSFER_MODE_UNRELIABLE_ORDERED;
|
|
} else {
|
|
push_error(R"(Invalid RPC argument. Must be one of: "call_local"/"call_remote" (local calls), "any_peer"/"authority" (permission), "reliable"/"unreliable"/"unreliable_ordered" (transfer mode).)", p_annotation);
|
|
}
|
|
}
|
|
|
|
if (locality_args > 1) {
|
|
push_error(R"(Invalid RPC config. The locality ("call_local"/"call_remote") must be specified no more than once.)", p_annotation);
|
|
} else if (permission_args > 1) {
|
|
push_error(R"(Invalid RPC config. The permission ("any_peer"/"authority") must be specified no more than once.)", p_annotation);
|
|
} else if (transfer_mode_args > 1) {
|
|
push_error(R"(Invalid RPC config. The transfer mode ("reliable"/"unreliable"/"unreliable_ordered") must be specified no more than once.)", p_annotation);
|
|
}
|
|
}
|
|
function->rpc_config = rpc_config;
|
|
return true;
|
|
}
|
|
|
|
bool GDScriptParser::static_unload_annotation(AnnotationNode *p_annotation, Node *p_target, ClassNode *p_class) {
|
|
ERR_FAIL_COND_V_MSG(p_target->type != Node::CLASS, false, vformat(R"("%s" annotation can only be applied to classes.)", p_annotation->name));
|
|
ClassNode *class_node = static_cast<ClassNode *>(p_target);
|
|
if (class_node->annotated_static_unload) {
|
|
push_error(vformat(R"("%s" annotation can only be used once per script.)", p_annotation->name), p_annotation);
|
|
return false;
|
|
}
|
|
class_node->annotated_static_unload = true;
|
|
return true;
|
|
}
|
|
|
|
GDScriptParser::DataType GDScriptParser::SuiteNode::Local::get_datatype() const {
|
|
switch (type) {
|
|
case CONSTANT:
|
|
return constant->get_datatype();
|
|
case VARIABLE:
|
|
return variable->get_datatype();
|
|
case PARAMETER:
|
|
return parameter->get_datatype();
|
|
case FOR_VARIABLE:
|
|
case PATTERN_BIND:
|
|
return bind->get_datatype();
|
|
case UNDEFINED:
|
|
return DataType();
|
|
}
|
|
return DataType();
|
|
}
|
|
|
|
String GDScriptParser::SuiteNode::Local::get_name() const {
|
|
switch (type) {
|
|
case SuiteNode::Local::PARAMETER:
|
|
return "parameter";
|
|
case SuiteNode::Local::CONSTANT:
|
|
return "constant";
|
|
case SuiteNode::Local::VARIABLE:
|
|
return "variable";
|
|
case SuiteNode::Local::FOR_VARIABLE:
|
|
return "for loop iterator";
|
|
case SuiteNode::Local::PATTERN_BIND:
|
|
return "pattern bind";
|
|
case SuiteNode::Local::UNDEFINED:
|
|
return "<undefined>";
|
|
default:
|
|
return String();
|
|
}
|
|
}
|
|
|
|
String GDScriptParser::DataType::to_string() const {
|
|
switch (kind) {
|
|
case VARIANT:
|
|
return "Variant";
|
|
case BUILTIN:
|
|
if (builtin_type == Variant::NIL) {
|
|
return "null";
|
|
}
|
|
if (builtin_type == Variant::ARRAY && has_container_element_type(0)) {
|
|
return vformat("Array[%s]", container_element_types[0].to_string());
|
|
}
|
|
return Variant::get_type_name(builtin_type);
|
|
case NATIVE:
|
|
if (is_meta_type) {
|
|
return GDScriptNativeClass::get_class_static();
|
|
}
|
|
return native_type.operator String();
|
|
case CLASS:
|
|
if (class_type->identifier != nullptr) {
|
|
return class_type->identifier->name.operator String();
|
|
}
|
|
return class_type->fqcn;
|
|
case SCRIPT: {
|
|
if (is_meta_type) {
|
|
return script_type != nullptr ? script_type->get_class_name().operator String() : "";
|
|
}
|
|
String name = script_type != nullptr ? script_type->get_name() : "";
|
|
if (!name.is_empty()) {
|
|
return name;
|
|
}
|
|
name = script_path;
|
|
if (!name.is_empty()) {
|
|
return name;
|
|
}
|
|
return native_type.operator String();
|
|
}
|
|
case ENUM: {
|
|
// native_type contains either the native class defining the enum
|
|
// or the fully qualified class name of the script defining the enum
|
|
return String(native_type).get_file(); // Remove path, keep filename
|
|
}
|
|
case RESOLVING:
|
|
case UNRESOLVED:
|
|
return "<unresolved type>";
|
|
}
|
|
|
|
ERR_FAIL_V_MSG("<unresolved type>", "Kind set outside the enum range.");
|
|
}
|
|
|
|
PropertyInfo GDScriptParser::DataType::to_property_info(const String &p_name) const {
|
|
PropertyInfo result;
|
|
result.name = p_name;
|
|
result.usage = PROPERTY_USAGE_NONE;
|
|
|
|
if (!is_hard_type()) {
|
|
result.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
|
|
return result;
|
|
}
|
|
|
|
switch (kind) {
|
|
case BUILTIN:
|
|
result.type = builtin_type;
|
|
if (builtin_type == Variant::ARRAY && has_container_element_type(0)) {
|
|
const DataType elem_type = get_container_element_type(0);
|
|
switch (elem_type.kind) {
|
|
case BUILTIN:
|
|
result.hint = PROPERTY_HINT_ARRAY_TYPE;
|
|
result.hint_string = Variant::get_type_name(elem_type.builtin_type);
|
|
break;
|
|
case NATIVE:
|
|
result.hint = PROPERTY_HINT_ARRAY_TYPE;
|
|
result.hint_string = elem_type.native_type;
|
|
break;
|
|
case SCRIPT:
|
|
result.hint = PROPERTY_HINT_ARRAY_TYPE;
|
|
if (elem_type.script_type.is_valid() && elem_type.script_type->get_global_name() != StringName()) {
|
|
result.hint_string = elem_type.script_type->get_global_name();
|
|
} else {
|
|
result.hint_string = elem_type.native_type;
|
|
}
|
|
break;
|
|
case CLASS:
|
|
result.hint = PROPERTY_HINT_ARRAY_TYPE;
|
|
if (elem_type.class_type != nullptr && elem_type.class_type->get_global_name() != StringName()) {
|
|
result.hint_string = elem_type.class_type->get_global_name();
|
|
} else {
|
|
result.hint_string = elem_type.native_type;
|
|
}
|
|
break;
|
|
case ENUM:
|
|
result.hint = PROPERTY_HINT_ARRAY_TYPE;
|
|
result.hint_string = String(elem_type.native_type).replace("::", ".");
|
|
break;
|
|
case VARIANT:
|
|
case RESOLVING:
|
|
case UNRESOLVED:
|
|
break;
|
|
}
|
|
}
|
|
break;
|
|
case NATIVE:
|
|
result.type = Variant::OBJECT;
|
|
if (is_meta_type) {
|
|
result.class_name = GDScriptNativeClass::get_class_static();
|
|
} else {
|
|
result.class_name = native_type;
|
|
}
|
|
break;
|
|
case SCRIPT:
|
|
result.type = Variant::OBJECT;
|
|
if (is_meta_type) {
|
|
result.class_name = script_type.is_valid() ? script_type->get_class() : Script::get_class_static();
|
|
} else if (script_type.is_valid() && script_type->get_global_name() != StringName()) {
|
|
result.class_name = script_type->get_global_name();
|
|
} else {
|
|
result.class_name = native_type;
|
|
}
|
|
break;
|
|
case CLASS:
|
|
result.type = Variant::OBJECT;
|
|
if (is_meta_type) {
|
|
result.class_name = GDScript::get_class_static();
|
|
} else if (class_type != nullptr && class_type->get_global_name() != StringName()) {
|
|
result.class_name = class_type->get_global_name();
|
|
} else {
|
|
result.class_name = native_type;
|
|
}
|
|
break;
|
|
case ENUM:
|
|
if (is_meta_type) {
|
|
result.type = Variant::DICTIONARY;
|
|
} else {
|
|
result.type = Variant::INT;
|
|
result.usage |= PROPERTY_USAGE_CLASS_IS_ENUM;
|
|
result.class_name = String(native_type).replace("::", ".");
|
|
}
|
|
break;
|
|
case VARIANT:
|
|
case RESOLVING:
|
|
case UNRESOLVED:
|
|
result.usage |= PROPERTY_USAGE_NIL_IS_VARIANT;
|
|
break;
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
static Variant::Type _variant_type_to_typed_array_element_type(Variant::Type p_type) {
|
|
switch (p_type) {
|
|
case Variant::PACKED_BYTE_ARRAY:
|
|
case Variant::PACKED_INT32_ARRAY:
|
|
case Variant::PACKED_INT64_ARRAY:
|
|
return Variant::INT;
|
|
case Variant::PACKED_FLOAT32_ARRAY:
|
|
case Variant::PACKED_FLOAT64_ARRAY:
|
|
return Variant::FLOAT;
|
|
case Variant::PACKED_STRING_ARRAY:
|
|
return Variant::STRING;
|
|
case Variant::PACKED_VECTOR2_ARRAY:
|
|
return Variant::VECTOR2;
|
|
case Variant::PACKED_VECTOR3_ARRAY:
|
|
return Variant::VECTOR3;
|
|
case Variant::PACKED_COLOR_ARRAY:
|
|
return Variant::COLOR;
|
|
case Variant::PACKED_VECTOR4_ARRAY:
|
|
return Variant::VECTOR4;
|
|
default:
|
|
return Variant::NIL;
|
|
}
|
|
}
|
|
|
|
bool GDScriptParser::DataType::is_typed_container_type() const {
|
|
return kind == GDScriptParser::DataType::BUILTIN && _variant_type_to_typed_array_element_type(builtin_type) != Variant::NIL;
|
|
}
|
|
|
|
GDScriptParser::DataType GDScriptParser::DataType::get_typed_container_type() const {
|
|
GDScriptParser::DataType type;
|
|
type.kind = GDScriptParser::DataType::BUILTIN;
|
|
type.builtin_type = _variant_type_to_typed_array_element_type(builtin_type);
|
|
return type;
|
|
}
|
|
|
|
void GDScriptParser::complete_extents(Node *p_node) {
|
|
while (!nodes_in_progress.is_empty() && nodes_in_progress.back()->get() != p_node) {
|
|
ERR_PRINT("Parser bug: Mismatch in extents tracking stack.");
|
|
nodes_in_progress.pop_back();
|
|
}
|
|
if (nodes_in_progress.is_empty()) {
|
|
ERR_PRINT("Parser bug: Extents tracking stack is empty.");
|
|
} else {
|
|
nodes_in_progress.pop_back();
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::update_extents(Node *p_node) {
|
|
p_node->end_line = previous.end_line;
|
|
p_node->end_column = previous.end_column;
|
|
p_node->leftmost_column = MIN(p_node->leftmost_column, previous.leftmost_column);
|
|
p_node->rightmost_column = MAX(p_node->rightmost_column, previous.rightmost_column);
|
|
}
|
|
|
|
void GDScriptParser::reset_extents(Node *p_node, GDScriptTokenizer::Token p_token) {
|
|
p_node->start_line = p_token.start_line;
|
|
p_node->end_line = p_token.end_line;
|
|
p_node->start_column = p_token.start_column;
|
|
p_node->end_column = p_token.end_column;
|
|
p_node->leftmost_column = p_token.leftmost_column;
|
|
p_node->rightmost_column = p_token.rightmost_column;
|
|
}
|
|
|
|
void GDScriptParser::reset_extents(Node *p_node, Node *p_from) {
|
|
if (p_from == nullptr) {
|
|
return;
|
|
}
|
|
p_node->start_line = p_from->start_line;
|
|
p_node->end_line = p_from->end_line;
|
|
p_node->start_column = p_from->start_column;
|
|
p_node->end_column = p_from->end_column;
|
|
p_node->leftmost_column = p_from->leftmost_column;
|
|
p_node->rightmost_column = p_from->rightmost_column;
|
|
}
|
|
|
|
/*---------- PRETTY PRINT FOR DEBUG ----------*/
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
|
|
void GDScriptParser::TreePrinter::increase_indent() {
|
|
indent_level++;
|
|
indent = "";
|
|
for (int i = 0; i < indent_level * 4; i++) {
|
|
if (i % 4 == 0) {
|
|
indent += "|";
|
|
} else {
|
|
indent += " ";
|
|
}
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::decrease_indent() {
|
|
indent_level--;
|
|
indent = "";
|
|
for (int i = 0; i < indent_level * 4; i++) {
|
|
if (i % 4 == 0) {
|
|
indent += "|";
|
|
} else {
|
|
indent += " ";
|
|
}
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::push_line(const String &p_line) {
|
|
if (!p_line.is_empty()) {
|
|
push_text(p_line);
|
|
}
|
|
printed += "\n";
|
|
pending_indent = true;
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::push_text(const String &p_text) {
|
|
if (pending_indent) {
|
|
printed += indent;
|
|
pending_indent = false;
|
|
}
|
|
printed += p_text;
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_annotation(const AnnotationNode *p_annotation) {
|
|
push_text(p_annotation->name);
|
|
push_text(" (");
|
|
for (int i = 0; i < p_annotation->arguments.size(); i++) {
|
|
if (i > 0) {
|
|
push_text(" , ");
|
|
}
|
|
print_expression(p_annotation->arguments[i]);
|
|
}
|
|
push_line(")");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_array(ArrayNode *p_array) {
|
|
push_text("[ ");
|
|
for (int i = 0; i < p_array->elements.size(); i++) {
|
|
if (i > 0) {
|
|
push_text(" , ");
|
|
}
|
|
print_expression(p_array->elements[i]);
|
|
}
|
|
push_text(" ]");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_assert(AssertNode *p_assert) {
|
|
push_text("Assert ( ");
|
|
print_expression(p_assert->condition);
|
|
push_line(" )");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_assignment(AssignmentNode *p_assignment) {
|
|
switch (p_assignment->assignee->type) {
|
|
case Node::IDENTIFIER:
|
|
print_identifier(static_cast<IdentifierNode *>(p_assignment->assignee));
|
|
break;
|
|
case Node::SUBSCRIPT:
|
|
print_subscript(static_cast<SubscriptNode *>(p_assignment->assignee));
|
|
break;
|
|
default:
|
|
break; // Unreachable.
|
|
}
|
|
|
|
push_text(" ");
|
|
switch (p_assignment->operation) {
|
|
case AssignmentNode::OP_ADDITION:
|
|
push_text("+");
|
|
break;
|
|
case AssignmentNode::OP_SUBTRACTION:
|
|
push_text("-");
|
|
break;
|
|
case AssignmentNode::OP_MULTIPLICATION:
|
|
push_text("*");
|
|
break;
|
|
case AssignmentNode::OP_DIVISION:
|
|
push_text("/");
|
|
break;
|
|
case AssignmentNode::OP_MODULO:
|
|
push_text("%");
|
|
break;
|
|
case AssignmentNode::OP_POWER:
|
|
push_text("**");
|
|
break;
|
|
case AssignmentNode::OP_BIT_SHIFT_LEFT:
|
|
push_text("<<");
|
|
break;
|
|
case AssignmentNode::OP_BIT_SHIFT_RIGHT:
|
|
push_text(">>");
|
|
break;
|
|
case AssignmentNode::OP_BIT_AND:
|
|
push_text("&");
|
|
break;
|
|
case AssignmentNode::OP_BIT_OR:
|
|
push_text("|");
|
|
break;
|
|
case AssignmentNode::OP_BIT_XOR:
|
|
push_text("^");
|
|
break;
|
|
case AssignmentNode::OP_NONE:
|
|
break;
|
|
}
|
|
push_text("= ");
|
|
print_expression(p_assignment->assigned_value);
|
|
push_line();
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_await(AwaitNode *p_await) {
|
|
push_text("Await ");
|
|
print_expression(p_await->to_await);
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_binary_op(BinaryOpNode *p_binary_op) {
|
|
// Surround in parenthesis for disambiguation.
|
|
push_text("(");
|
|
print_expression(p_binary_op->left_operand);
|
|
switch (p_binary_op->operation) {
|
|
case BinaryOpNode::OP_ADDITION:
|
|
push_text(" + ");
|
|
break;
|
|
case BinaryOpNode::OP_SUBTRACTION:
|
|
push_text(" - ");
|
|
break;
|
|
case BinaryOpNode::OP_MULTIPLICATION:
|
|
push_text(" * ");
|
|
break;
|
|
case BinaryOpNode::OP_DIVISION:
|
|
push_text(" / ");
|
|
break;
|
|
case BinaryOpNode::OP_MODULO:
|
|
push_text(" % ");
|
|
break;
|
|
case BinaryOpNode::OP_POWER:
|
|
push_text(" ** ");
|
|
break;
|
|
case BinaryOpNode::OP_BIT_LEFT_SHIFT:
|
|
push_text(" << ");
|
|
break;
|
|
case BinaryOpNode::OP_BIT_RIGHT_SHIFT:
|
|
push_text(" >> ");
|
|
break;
|
|
case BinaryOpNode::OP_BIT_AND:
|
|
push_text(" & ");
|
|
break;
|
|
case BinaryOpNode::OP_BIT_OR:
|
|
push_text(" | ");
|
|
break;
|
|
case BinaryOpNode::OP_BIT_XOR:
|
|
push_text(" ^ ");
|
|
break;
|
|
case BinaryOpNode::OP_LOGIC_AND:
|
|
push_text(" AND ");
|
|
break;
|
|
case BinaryOpNode::OP_LOGIC_OR:
|
|
push_text(" OR ");
|
|
break;
|
|
case BinaryOpNode::OP_CONTENT_TEST:
|
|
push_text(" IN ");
|
|
break;
|
|
case BinaryOpNode::OP_COMP_EQUAL:
|
|
push_text(" == ");
|
|
break;
|
|
case BinaryOpNode::OP_COMP_NOT_EQUAL:
|
|
push_text(" != ");
|
|
break;
|
|
case BinaryOpNode::OP_COMP_LESS:
|
|
push_text(" < ");
|
|
break;
|
|
case BinaryOpNode::OP_COMP_LESS_EQUAL:
|
|
push_text(" <= ");
|
|
break;
|
|
case BinaryOpNode::OP_COMP_GREATER:
|
|
push_text(" > ");
|
|
break;
|
|
case BinaryOpNode::OP_COMP_GREATER_EQUAL:
|
|
push_text(" >= ");
|
|
break;
|
|
}
|
|
print_expression(p_binary_op->right_operand);
|
|
// Surround in parenthesis for disambiguation.
|
|
push_text(")");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_call(CallNode *p_call) {
|
|
if (p_call->is_super) {
|
|
push_text("super");
|
|
if (p_call->callee != nullptr) {
|
|
push_text(".");
|
|
print_expression(p_call->callee);
|
|
}
|
|
} else {
|
|
print_expression(p_call->callee);
|
|
}
|
|
push_text("( ");
|
|
for (int i = 0; i < p_call->arguments.size(); i++) {
|
|
if (i > 0) {
|
|
push_text(" , ");
|
|
}
|
|
print_expression(p_call->arguments[i]);
|
|
}
|
|
push_text(" )");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_cast(CastNode *p_cast) {
|
|
print_expression(p_cast->operand);
|
|
push_text(" AS ");
|
|
print_type(p_cast->cast_type);
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_class(ClassNode *p_class) {
|
|
push_text("Class ");
|
|
if (p_class->identifier == nullptr) {
|
|
push_text("<unnamed>");
|
|
} else {
|
|
print_identifier(p_class->identifier);
|
|
}
|
|
|
|
if (p_class->extends_used) {
|
|
bool first = true;
|
|
push_text(" Extends ");
|
|
if (!p_class->extends_path.is_empty()) {
|
|
push_text(vformat(R"("%s")", p_class->extends_path));
|
|
first = false;
|
|
}
|
|
for (int i = 0; i < p_class->extends.size(); i++) {
|
|
if (!first) {
|
|
push_text(".");
|
|
} else {
|
|
first = false;
|
|
}
|
|
push_text(p_class->extends[i]->name);
|
|
}
|
|
}
|
|
|
|
push_line(" :");
|
|
|
|
increase_indent();
|
|
|
|
for (int i = 0; i < p_class->members.size(); i++) {
|
|
const ClassNode::Member &m = p_class->members[i];
|
|
|
|
switch (m.type) {
|
|
case ClassNode::Member::CLASS:
|
|
print_class(m.m_class);
|
|
break;
|
|
case ClassNode::Member::VARIABLE:
|
|
print_variable(m.variable);
|
|
break;
|
|
case ClassNode::Member::CONSTANT:
|
|
print_constant(m.constant);
|
|
break;
|
|
case ClassNode::Member::SIGNAL:
|
|
print_signal(m.signal);
|
|
break;
|
|
case ClassNode::Member::FUNCTION:
|
|
print_function(m.function);
|
|
break;
|
|
case ClassNode::Member::ENUM:
|
|
print_enum(m.m_enum);
|
|
break;
|
|
case ClassNode::Member::ENUM_VALUE:
|
|
break; // Nothing. Will be printed by enum.
|
|
case ClassNode::Member::GROUP:
|
|
break; // Nothing. Groups are only used by inspector.
|
|
case ClassNode::Member::UNDEFINED:
|
|
push_line("<unknown member>");
|
|
break;
|
|
}
|
|
}
|
|
|
|
decrease_indent();
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_constant(ConstantNode *p_constant) {
|
|
push_text("Constant ");
|
|
print_identifier(p_constant->identifier);
|
|
|
|
increase_indent();
|
|
|
|
push_line();
|
|
push_text("= ");
|
|
if (p_constant->initializer == nullptr) {
|
|
push_text("<missing value>");
|
|
} else {
|
|
print_expression(p_constant->initializer);
|
|
}
|
|
decrease_indent();
|
|
push_line();
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_dictionary(DictionaryNode *p_dictionary) {
|
|
push_line("{");
|
|
increase_indent();
|
|
for (int i = 0; i < p_dictionary->elements.size(); i++) {
|
|
print_expression(p_dictionary->elements[i].key);
|
|
if (p_dictionary->style == DictionaryNode::PYTHON_DICT) {
|
|
push_text(" : ");
|
|
} else {
|
|
push_text(" = ");
|
|
}
|
|
print_expression(p_dictionary->elements[i].value);
|
|
push_line(" ,");
|
|
}
|
|
decrease_indent();
|
|
push_text("}");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_expression(ExpressionNode *p_expression) {
|
|
if (p_expression == nullptr) {
|
|
push_text("<invalid expression>");
|
|
return;
|
|
}
|
|
switch (p_expression->type) {
|
|
case Node::ARRAY:
|
|
print_array(static_cast<ArrayNode *>(p_expression));
|
|
break;
|
|
case Node::ASSIGNMENT:
|
|
print_assignment(static_cast<AssignmentNode *>(p_expression));
|
|
break;
|
|
case Node::AWAIT:
|
|
print_await(static_cast<AwaitNode *>(p_expression));
|
|
break;
|
|
case Node::BINARY_OPERATOR:
|
|
print_binary_op(static_cast<BinaryOpNode *>(p_expression));
|
|
break;
|
|
case Node::CALL:
|
|
print_call(static_cast<CallNode *>(p_expression));
|
|
break;
|
|
case Node::CAST:
|
|
print_cast(static_cast<CastNode *>(p_expression));
|
|
break;
|
|
case Node::DICTIONARY:
|
|
print_dictionary(static_cast<DictionaryNode *>(p_expression));
|
|
break;
|
|
case Node::GET_NODE:
|
|
print_get_node(static_cast<GetNodeNode *>(p_expression));
|
|
break;
|
|
case Node::IDENTIFIER:
|
|
print_identifier(static_cast<IdentifierNode *>(p_expression));
|
|
break;
|
|
case Node::LAMBDA:
|
|
print_lambda(static_cast<LambdaNode *>(p_expression));
|
|
break;
|
|
case Node::LITERAL:
|
|
print_literal(static_cast<LiteralNode *>(p_expression));
|
|
break;
|
|
case Node::PRELOAD:
|
|
print_preload(static_cast<PreloadNode *>(p_expression));
|
|
break;
|
|
case Node::SELF:
|
|
print_self(static_cast<SelfNode *>(p_expression));
|
|
break;
|
|
case Node::SUBSCRIPT:
|
|
print_subscript(static_cast<SubscriptNode *>(p_expression));
|
|
break;
|
|
case Node::TERNARY_OPERATOR:
|
|
print_ternary_op(static_cast<TernaryOpNode *>(p_expression));
|
|
break;
|
|
case Node::TYPE_TEST:
|
|
print_type_test(static_cast<TypeTestNode *>(p_expression));
|
|
break;
|
|
case Node::UNARY_OPERATOR:
|
|
print_unary_op(static_cast<UnaryOpNode *>(p_expression));
|
|
break;
|
|
default:
|
|
push_text(vformat("<unknown expression %d>", p_expression->type));
|
|
break;
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_enum(EnumNode *p_enum) {
|
|
push_text("Enum ");
|
|
if (p_enum->identifier != nullptr) {
|
|
print_identifier(p_enum->identifier);
|
|
} else {
|
|
push_text("<unnamed>");
|
|
}
|
|
|
|
push_line(" {");
|
|
increase_indent();
|
|
for (int i = 0; i < p_enum->values.size(); i++) {
|
|
const EnumNode::Value &item = p_enum->values[i];
|
|
print_identifier(item.identifier);
|
|
push_text(" = ");
|
|
push_text(itos(item.value));
|
|
push_line(" ,");
|
|
}
|
|
decrease_indent();
|
|
push_line("}");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_for(ForNode *p_for) {
|
|
push_text("For ");
|
|
print_identifier(p_for->variable);
|
|
push_text(" IN ");
|
|
print_expression(p_for->list);
|
|
push_line(" :");
|
|
|
|
increase_indent();
|
|
|
|
print_suite(p_for->loop);
|
|
|
|
decrease_indent();
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_function(FunctionNode *p_function, const String &p_context) {
|
|
for (const AnnotationNode *E : p_function->annotations) {
|
|
print_annotation(E);
|
|
}
|
|
if (p_function->is_static) {
|
|
push_text("Static ");
|
|
}
|
|
push_text(p_context);
|
|
push_text(" ");
|
|
if (p_function->identifier) {
|
|
print_identifier(p_function->identifier);
|
|
} else {
|
|
push_text("<anonymous>");
|
|
}
|
|
push_text("( ");
|
|
for (int i = 0; i < p_function->parameters.size(); i++) {
|
|
if (i > 0) {
|
|
push_text(" , ");
|
|
}
|
|
print_parameter(p_function->parameters[i]);
|
|
}
|
|
push_line(" ) :");
|
|
increase_indent();
|
|
print_suite(p_function->body);
|
|
decrease_indent();
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_get_node(GetNodeNode *p_get_node) {
|
|
if (p_get_node->use_dollar) {
|
|
push_text("$");
|
|
}
|
|
push_text(p_get_node->full_path);
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_identifier(IdentifierNode *p_identifier) {
|
|
if (p_identifier != nullptr) {
|
|
push_text(p_identifier->name);
|
|
} else {
|
|
push_text("<invalid identifier>");
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_if(IfNode *p_if, bool p_is_elif) {
|
|
if (p_is_elif) {
|
|
push_text("Elif ");
|
|
} else {
|
|
push_text("If ");
|
|
}
|
|
print_expression(p_if->condition);
|
|
push_line(" :");
|
|
|
|
increase_indent();
|
|
print_suite(p_if->true_block);
|
|
decrease_indent();
|
|
|
|
// FIXME: Properly detect "elif" blocks.
|
|
if (p_if->false_block != nullptr) {
|
|
push_line("Else :");
|
|
increase_indent();
|
|
print_suite(p_if->false_block);
|
|
decrease_indent();
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_lambda(LambdaNode *p_lambda) {
|
|
print_function(p_lambda->function, "Lambda");
|
|
push_text("| captures [ ");
|
|
for (int i = 0; i < p_lambda->captures.size(); i++) {
|
|
if (i > 0) {
|
|
push_text(" , ");
|
|
}
|
|
push_text(p_lambda->captures[i]->name.operator String());
|
|
}
|
|
push_line(" ]");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_literal(LiteralNode *p_literal) {
|
|
// Prefix for string types.
|
|
switch (p_literal->value.get_type()) {
|
|
case Variant::NODE_PATH:
|
|
push_text("^\"");
|
|
break;
|
|
case Variant::STRING:
|
|
push_text("\"");
|
|
break;
|
|
case Variant::STRING_NAME:
|
|
push_text("&\"");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
push_text(p_literal->value);
|
|
// Suffix for string types.
|
|
switch (p_literal->value.get_type()) {
|
|
case Variant::NODE_PATH:
|
|
case Variant::STRING:
|
|
case Variant::STRING_NAME:
|
|
push_text("\"");
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_match(MatchNode *p_match) {
|
|
push_text("Match ");
|
|
print_expression(p_match->test);
|
|
push_line(" :");
|
|
|
|
increase_indent();
|
|
for (int i = 0; i < p_match->branches.size(); i++) {
|
|
print_match_branch(p_match->branches[i]);
|
|
}
|
|
decrease_indent();
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_match_branch(MatchBranchNode *p_match_branch) {
|
|
for (int i = 0; i < p_match_branch->patterns.size(); i++) {
|
|
if (i > 0) {
|
|
push_text(" , ");
|
|
}
|
|
print_match_pattern(p_match_branch->patterns[i]);
|
|
}
|
|
|
|
push_line(" :");
|
|
|
|
increase_indent();
|
|
print_suite(p_match_branch->block);
|
|
decrease_indent();
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_match_pattern(PatternNode *p_match_pattern) {
|
|
switch (p_match_pattern->pattern_type) {
|
|
case PatternNode::PT_LITERAL:
|
|
print_literal(p_match_pattern->literal);
|
|
break;
|
|
case PatternNode::PT_WILDCARD:
|
|
push_text("_");
|
|
break;
|
|
case PatternNode::PT_REST:
|
|
push_text("..");
|
|
break;
|
|
case PatternNode::PT_BIND:
|
|
push_text("Var ");
|
|
print_identifier(p_match_pattern->bind);
|
|
break;
|
|
case PatternNode::PT_EXPRESSION:
|
|
print_expression(p_match_pattern->expression);
|
|
break;
|
|
case PatternNode::PT_ARRAY:
|
|
push_text("[ ");
|
|
for (int i = 0; i < p_match_pattern->array.size(); i++) {
|
|
if (i > 0) {
|
|
push_text(" , ");
|
|
}
|
|
print_match_pattern(p_match_pattern->array[i]);
|
|
}
|
|
push_text(" ]");
|
|
break;
|
|
case PatternNode::PT_DICTIONARY:
|
|
push_text("{ ");
|
|
for (int i = 0; i < p_match_pattern->dictionary.size(); i++) {
|
|
if (i > 0) {
|
|
push_text(" , ");
|
|
}
|
|
if (p_match_pattern->dictionary[i].key != nullptr) {
|
|
// Key can be null for rest pattern.
|
|
print_expression(p_match_pattern->dictionary[i].key);
|
|
push_text(" : ");
|
|
}
|
|
print_match_pattern(p_match_pattern->dictionary[i].value_pattern);
|
|
}
|
|
push_text(" }");
|
|
break;
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_parameter(ParameterNode *p_parameter) {
|
|
print_identifier(p_parameter->identifier);
|
|
if (p_parameter->datatype_specifier != nullptr) {
|
|
push_text(" : ");
|
|
print_type(p_parameter->datatype_specifier);
|
|
}
|
|
if (p_parameter->initializer != nullptr) {
|
|
push_text(" = ");
|
|
print_expression(p_parameter->initializer);
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_preload(PreloadNode *p_preload) {
|
|
push_text(R"(Preload ( ")");
|
|
push_text(p_preload->resolved_path);
|
|
push_text(R"(" )");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_return(ReturnNode *p_return) {
|
|
push_text("Return");
|
|
if (p_return->return_value != nullptr) {
|
|
push_text(" ");
|
|
print_expression(p_return->return_value);
|
|
}
|
|
push_line();
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_self(SelfNode *p_self) {
|
|
push_text("Self(");
|
|
if (p_self->current_class->identifier != nullptr) {
|
|
print_identifier(p_self->current_class->identifier);
|
|
} else {
|
|
push_text("<main class>");
|
|
}
|
|
push_text(")");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_signal(SignalNode *p_signal) {
|
|
push_text("Signal ");
|
|
print_identifier(p_signal->identifier);
|
|
push_text("( ");
|
|
for (int i = 0; i < p_signal->parameters.size(); i++) {
|
|
print_parameter(p_signal->parameters[i]);
|
|
}
|
|
push_line(" )");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_subscript(SubscriptNode *p_subscript) {
|
|
print_expression(p_subscript->base);
|
|
if (p_subscript->is_attribute) {
|
|
push_text(".");
|
|
print_identifier(p_subscript->attribute);
|
|
} else {
|
|
push_text("[ ");
|
|
print_expression(p_subscript->index);
|
|
push_text(" ]");
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_statement(Node *p_statement) {
|
|
switch (p_statement->type) {
|
|
case Node::ASSERT:
|
|
print_assert(static_cast<AssertNode *>(p_statement));
|
|
break;
|
|
case Node::VARIABLE:
|
|
print_variable(static_cast<VariableNode *>(p_statement));
|
|
break;
|
|
case Node::CONSTANT:
|
|
print_constant(static_cast<ConstantNode *>(p_statement));
|
|
break;
|
|
case Node::IF:
|
|
print_if(static_cast<IfNode *>(p_statement));
|
|
break;
|
|
case Node::FOR:
|
|
print_for(static_cast<ForNode *>(p_statement));
|
|
break;
|
|
case Node::WHILE:
|
|
print_while(static_cast<WhileNode *>(p_statement));
|
|
break;
|
|
case Node::MATCH:
|
|
print_match(static_cast<MatchNode *>(p_statement));
|
|
break;
|
|
case Node::RETURN:
|
|
print_return(static_cast<ReturnNode *>(p_statement));
|
|
break;
|
|
case Node::BREAK:
|
|
push_line("Break");
|
|
break;
|
|
case Node::CONTINUE:
|
|
push_line("Continue");
|
|
break;
|
|
case Node::PASS:
|
|
push_line("Pass");
|
|
break;
|
|
case Node::BREAKPOINT:
|
|
push_line("Breakpoint");
|
|
break;
|
|
case Node::ASSIGNMENT:
|
|
print_assignment(static_cast<AssignmentNode *>(p_statement));
|
|
break;
|
|
default:
|
|
if (p_statement->is_expression()) {
|
|
print_expression(static_cast<ExpressionNode *>(p_statement));
|
|
push_line();
|
|
} else {
|
|
push_line(vformat("<unknown statement %d>", p_statement->type));
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_suite(SuiteNode *p_suite) {
|
|
for (int i = 0; i < p_suite->statements.size(); i++) {
|
|
print_statement(p_suite->statements[i]);
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_ternary_op(TernaryOpNode *p_ternary_op) {
|
|
// Surround in parenthesis for disambiguation.
|
|
push_text("(");
|
|
print_expression(p_ternary_op->true_expr);
|
|
push_text(") IF (");
|
|
print_expression(p_ternary_op->condition);
|
|
push_text(") ELSE (");
|
|
print_expression(p_ternary_op->false_expr);
|
|
push_text(")");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_type(TypeNode *p_type) {
|
|
if (p_type->type_chain.is_empty()) {
|
|
push_text("Void");
|
|
} else {
|
|
for (int i = 0; i < p_type->type_chain.size(); i++) {
|
|
if (i > 0) {
|
|
push_text(".");
|
|
}
|
|
print_identifier(p_type->type_chain[i]);
|
|
}
|
|
}
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_type_test(TypeTestNode *p_test) {
|
|
print_expression(p_test->operand);
|
|
push_text(" IS ");
|
|
print_type(p_test->test_type);
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_unary_op(UnaryOpNode *p_unary_op) {
|
|
// Surround in parenthesis for disambiguation.
|
|
push_text("(");
|
|
switch (p_unary_op->operation) {
|
|
case UnaryOpNode::OP_POSITIVE:
|
|
push_text("+");
|
|
break;
|
|
case UnaryOpNode::OP_NEGATIVE:
|
|
push_text("-");
|
|
break;
|
|
case UnaryOpNode::OP_LOGIC_NOT:
|
|
push_text("NOT");
|
|
break;
|
|
case UnaryOpNode::OP_COMPLEMENT:
|
|
push_text("~");
|
|
break;
|
|
}
|
|
print_expression(p_unary_op->operand);
|
|
// Surround in parenthesis for disambiguation.
|
|
push_text(")");
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_variable(VariableNode *p_variable) {
|
|
for (const AnnotationNode *E : p_variable->annotations) {
|
|
print_annotation(E);
|
|
}
|
|
|
|
if (p_variable->is_static) {
|
|
push_text("Static ");
|
|
}
|
|
push_text("Variable ");
|
|
print_identifier(p_variable->identifier);
|
|
|
|
push_text(" : ");
|
|
if (p_variable->datatype_specifier != nullptr) {
|
|
print_type(p_variable->datatype_specifier);
|
|
} else if (p_variable->infer_datatype) {
|
|
push_text("<inferred type>");
|
|
} else {
|
|
push_text("Variant");
|
|
}
|
|
|
|
increase_indent();
|
|
|
|
push_line();
|
|
push_text("= ");
|
|
if (p_variable->initializer == nullptr) {
|
|
push_text("<default value>");
|
|
} else {
|
|
print_expression(p_variable->initializer);
|
|
}
|
|
push_line();
|
|
|
|
if (p_variable->property != VariableNode::PROP_NONE) {
|
|
if (p_variable->getter != nullptr) {
|
|
push_text("Get");
|
|
if (p_variable->property == VariableNode::PROP_INLINE) {
|
|
push_line(":");
|
|
increase_indent();
|
|
print_suite(p_variable->getter->body);
|
|
decrease_indent();
|
|
} else {
|
|
push_line(" =");
|
|
increase_indent();
|
|
print_identifier(p_variable->getter_pointer);
|
|
push_line();
|
|
decrease_indent();
|
|
}
|
|
}
|
|
if (p_variable->setter != nullptr) {
|
|
push_text("Set (");
|
|
if (p_variable->property == VariableNode::PROP_INLINE) {
|
|
if (p_variable->setter_parameter != nullptr) {
|
|
print_identifier(p_variable->setter_parameter);
|
|
} else {
|
|
push_text("<missing>");
|
|
}
|
|
push_line("):");
|
|
increase_indent();
|
|
print_suite(p_variable->setter->body);
|
|
decrease_indent();
|
|
} else {
|
|
push_line(" =");
|
|
increase_indent();
|
|
print_identifier(p_variable->setter_pointer);
|
|
push_line();
|
|
decrease_indent();
|
|
}
|
|
}
|
|
}
|
|
|
|
decrease_indent();
|
|
push_line();
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_while(WhileNode *p_while) {
|
|
push_text("While ");
|
|
print_expression(p_while->condition);
|
|
push_line(" :");
|
|
|
|
increase_indent();
|
|
print_suite(p_while->loop);
|
|
decrease_indent();
|
|
}
|
|
|
|
void GDScriptParser::TreePrinter::print_tree(const GDScriptParser &p_parser) {
|
|
ERR_FAIL_NULL_MSG(p_parser.get_tree(), "Parse the code before printing the parse tree.");
|
|
|
|
if (p_parser.is_tool()) {
|
|
push_line("@tool");
|
|
}
|
|
if (!p_parser.get_tree()->icon_path.is_empty()) {
|
|
push_text(R"(@icon (")");
|
|
push_text(p_parser.get_tree()->icon_path);
|
|
push_line("\")");
|
|
}
|
|
print_class(p_parser.get_tree());
|
|
|
|
print_line(String(printed));
|
|
}
|
|
|
|
#endif // DEBUG_ENABLED
|