d95794ec8a
As many open source projects have started doing it, we're removing the current year from the copyright notice, so that we don't need to bump it every year. It seems like only the first year of publication is technically relevant for copyright notices, and even that seems to be something that many companies stopped listing altogether (in a version controlled codebase, the commits are a much better source of date of publication than a hardcoded copyright statement). We also now list Godot Engine contributors first as we're collectively the current maintainers of the project, and we clarify that the "exclusive" copyright of the co-founders covers the timespan before opensourcing (their further contributions are included as part of Godot Engine contributors). Also fixed "cf." Frenchism - it's meant as "refer to / see".
439 lines
12 KiB
C++
439 lines
12 KiB
C++
/**************************************************************************/
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/* gdscript_cache.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_cache.h"
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#include "core/io/file_access.h"
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#include "core/templates/vector.h"
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#include "gdscript.h"
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#include "gdscript_analyzer.h"
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#include "gdscript_compiler.h"
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#include "gdscript_parser.h"
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#include "scene/resources/packed_scene.h"
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bool GDScriptParserRef::is_valid() const {
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return parser != nullptr;
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}
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GDScriptParserRef::Status GDScriptParserRef::get_status() const {
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return status;
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}
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GDScriptParser *GDScriptParserRef::get_parser() const {
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return parser;
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}
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GDScriptAnalyzer *GDScriptParserRef::get_analyzer() {
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if (analyzer == nullptr) {
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analyzer = memnew(GDScriptAnalyzer(parser));
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}
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return analyzer;
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}
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Error GDScriptParserRef::raise_status(Status p_new_status) {
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ERR_FAIL_COND_V(parser == nullptr, ERR_INVALID_DATA);
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if (result != OK) {
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return result;
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}
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while (p_new_status > status) {
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switch (status) {
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case EMPTY:
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status = PARSED;
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result = parser->parse(GDScriptCache::get_source_code(path), path, false);
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break;
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case PARSED: {
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status = INHERITANCE_SOLVED;
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Error inheritance_result = get_analyzer()->resolve_inheritance();
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if (result == OK) {
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result = inheritance_result;
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}
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} break;
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case INHERITANCE_SOLVED: {
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status = INTERFACE_SOLVED;
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Error interface_result = get_analyzer()->resolve_interface();
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if (result == OK) {
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result = interface_result;
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}
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} break;
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case INTERFACE_SOLVED: {
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status = FULLY_SOLVED;
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Error body_result = get_analyzer()->resolve_body();
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if (result == OK) {
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result = body_result;
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}
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} break;
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case FULLY_SOLVED: {
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return result;
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}
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}
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if (result != OK) {
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return result;
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}
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}
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return result;
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}
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void GDScriptParserRef::clear() {
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if (cleared) {
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return;
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}
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cleared = true;
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if (parser != nullptr) {
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memdelete(parser);
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}
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if (analyzer != nullptr) {
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memdelete(analyzer);
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}
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}
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GDScriptParserRef::~GDScriptParserRef() {
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clear();
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MutexLock lock(GDScriptCache::singleton->mutex);
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GDScriptCache::singleton->parser_map.erase(path);
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}
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GDScriptCache *GDScriptCache::singleton = nullptr;
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void GDScriptCache::move_script(const String &p_from, const String &p_to) {
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if (singleton == nullptr || p_from == p_to) {
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return;
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}
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MutexLock lock(singleton->mutex);
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if (singleton->cleared) {
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return;
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}
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for (KeyValue<String, HashSet<String>> &E : singleton->packed_scene_dependencies) {
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if (E.value.has(p_from)) {
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E.value.insert(p_to);
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E.value.erase(p_from);
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}
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}
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if (singleton->parser_map.has(p_from) && !p_from.is_empty()) {
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singleton->parser_map[p_to] = singleton->parser_map[p_from];
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}
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singleton->parser_map.erase(p_from);
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if (singleton->shallow_gdscript_cache.has(p_from) && !p_from.is_empty()) {
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singleton->shallow_gdscript_cache[p_to] = singleton->shallow_gdscript_cache[p_from];
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}
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singleton->shallow_gdscript_cache.erase(p_from);
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if (singleton->full_gdscript_cache.has(p_from) && !p_from.is_empty()) {
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singleton->full_gdscript_cache[p_to] = singleton->full_gdscript_cache[p_from];
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}
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singleton->full_gdscript_cache.erase(p_from);
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}
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void GDScriptCache::remove_script(const String &p_path) {
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if (singleton == nullptr) {
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return;
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}
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MutexLock lock(singleton->mutex);
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if (singleton->cleared) {
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return;
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}
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for (KeyValue<String, HashSet<String>> &E : singleton->packed_scene_dependencies) {
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if (!E.value.has(p_path)) {
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continue;
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}
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E.value.erase(p_path);
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}
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GDScriptCache::clear_unreferenced_packed_scenes();
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if (singleton->parser_map.has(p_path)) {
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singleton->parser_map[p_path]->clear();
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singleton->parser_map.erase(p_path);
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}
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singleton->dependencies.erase(p_path);
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singleton->shallow_gdscript_cache.erase(p_path);
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singleton->full_gdscript_cache.erase(p_path);
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}
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Ref<GDScriptParserRef> GDScriptCache::get_parser(const String &p_path, GDScriptParserRef::Status p_status, Error &r_error, const String &p_owner) {
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MutexLock lock(singleton->mutex);
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Ref<GDScriptParserRef> ref;
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if (!p_owner.is_empty()) {
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singleton->dependencies[p_owner].insert(p_path);
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}
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if (singleton->parser_map.has(p_path)) {
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ref = Ref<GDScriptParserRef>(singleton->parser_map[p_path]);
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if (ref.is_null()) {
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r_error = ERR_INVALID_DATA;
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return ref;
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}
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} else {
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if (!FileAccess::exists(p_path)) {
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r_error = ERR_FILE_NOT_FOUND;
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return ref;
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}
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GDScriptParser *parser = memnew(GDScriptParser);
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ref.instantiate();
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ref->parser = parser;
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ref->path = p_path;
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singleton->parser_map[p_path] = ref.ptr();
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}
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r_error = ref->raise_status(p_status);
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return ref;
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}
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String GDScriptCache::get_source_code(const String &p_path) {
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Vector<uint8_t> source_file;
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Error err;
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Ref<FileAccess> f = FileAccess::open(p_path, FileAccess::READ, &err);
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ERR_FAIL_COND_V(err, "");
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uint64_t len = f->get_length();
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source_file.resize(len + 1);
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uint64_t r = f->get_buffer(source_file.ptrw(), len);
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ERR_FAIL_COND_V(r != len, "");
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source_file.write[len] = 0;
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String source;
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if (source.parse_utf8((const char *)source_file.ptr()) != OK) {
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ERR_FAIL_V_MSG("", "Script '" + p_path + "' contains invalid unicode (UTF-8), so it was not loaded. Please ensure that scripts are saved in valid UTF-8 unicode.");
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}
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return source;
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}
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Ref<GDScript> GDScriptCache::get_shallow_script(const String &p_path, Error &r_error, const String &p_owner) {
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MutexLock lock(singleton->mutex);
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if (!p_owner.is_empty()) {
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singleton->dependencies[p_owner].insert(p_path);
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}
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if (singleton->full_gdscript_cache.has(p_path)) {
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return singleton->full_gdscript_cache[p_path];
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}
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if (singleton->shallow_gdscript_cache.has(p_path)) {
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return singleton->shallow_gdscript_cache[p_path];
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}
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Ref<GDScript> script;
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script.instantiate();
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script->set_path(p_path, true);
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script->load_source_code(p_path);
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Ref<GDScriptParserRef> parser_ref = get_parser(p_path, GDScriptParserRef::PARSED, r_error);
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if (r_error == OK) {
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GDScriptCompiler::make_scripts(script.ptr(), parser_ref->get_parser()->get_tree(), true);
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}
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singleton->shallow_gdscript_cache[p_path] = script;
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return script;
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}
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Ref<GDScript> GDScriptCache::get_full_script(const String &p_path, Error &r_error, const String &p_owner, bool p_update_from_disk) {
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MutexLock lock(singleton->mutex);
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if (!p_owner.is_empty()) {
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singleton->dependencies[p_owner].insert(p_path);
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}
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Ref<GDScript> script;
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r_error = OK;
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if (singleton->full_gdscript_cache.has(p_path)) {
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script = singleton->full_gdscript_cache[p_path];
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if (!p_update_from_disk) {
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return script;
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}
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}
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if (script.is_null()) {
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script = get_shallow_script(p_path, r_error);
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if (r_error) {
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return script;
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}
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}
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if (p_update_from_disk) {
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r_error = script->load_source_code(p_path);
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}
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if (r_error) {
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return script;
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}
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singleton->full_gdscript_cache[p_path] = script;
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singleton->shallow_gdscript_cache.erase(p_path);
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script->reload(true);
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return script;
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}
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Ref<GDScript> GDScriptCache::get_cached_script(const String &p_path) {
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MutexLock lock(singleton->mutex);
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if (singleton->full_gdscript_cache.has(p_path)) {
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return singleton->full_gdscript_cache[p_path];
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}
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if (singleton->shallow_gdscript_cache.has(p_path)) {
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return singleton->shallow_gdscript_cache[p_path];
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}
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return Ref<GDScript>();
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}
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Error GDScriptCache::finish_compiling(const String &p_owner) {
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MutexLock lock(singleton->mutex);
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// Mark this as compiled.
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Ref<GDScript> script = get_cached_script(p_owner);
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singleton->full_gdscript_cache[p_owner] = script;
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singleton->shallow_gdscript_cache.erase(p_owner);
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HashSet<String> depends = singleton->dependencies[p_owner];
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Error err = OK;
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for (const String &E : depends) {
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Error this_err = OK;
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// No need to save the script. We assume it's already referenced in the owner.
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get_full_script(E, this_err);
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if (this_err != OK) {
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err = this_err;
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}
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}
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singleton->dependencies.erase(p_owner);
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return err;
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}
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Ref<PackedScene> GDScriptCache::get_packed_scene(const String &p_path, Error &r_error, const String &p_owner) {
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MutexLock lock(singleton->mutex);
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if (singleton->packed_scene_cache.has(p_path)) {
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singleton->packed_scene_dependencies[p_path].insert(p_owner);
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return singleton->packed_scene_cache[p_path];
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}
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Ref<PackedScene> scene = ResourceCache::get_ref(p_path);
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if (scene.is_valid()) {
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singleton->packed_scene_cache[p_path] = scene;
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singleton->packed_scene_dependencies[p_path].insert(p_owner);
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return scene;
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}
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scene.instantiate();
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r_error = OK;
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if (p_path.is_empty()) {
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r_error = ERR_FILE_BAD_PATH;
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return scene;
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}
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scene->set_path(p_path);
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singleton->packed_scene_cache[p_path] = scene;
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singleton->packed_scene_dependencies[p_path].insert(p_owner);
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scene->reload_from_file();
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return scene;
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}
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void GDScriptCache::clear_unreferenced_packed_scenes() {
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if (singleton == nullptr) {
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return;
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}
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MutexLock lock(singleton->mutex);
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if (singleton->cleared) {
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return;
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}
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for (KeyValue<String, HashSet<String>> &E : singleton->packed_scene_dependencies) {
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if (E.value.size() > 0 || !ResourceLoader::is_imported(E.key)) {
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continue;
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}
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singleton->packed_scene_dependencies.erase(E.key);
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singleton->packed_scene_cache.erase(E.key);
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}
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}
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void GDScriptCache::clear() {
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if (singleton == nullptr) {
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return;
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}
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MutexLock lock(singleton->mutex);
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if (singleton->cleared) {
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return;
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}
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singleton->cleared = true;
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RBSet<Ref<GDScriptParserRef>> parser_map_refs;
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for (KeyValue<String, GDScriptParserRef *> &E : singleton->parser_map) {
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parser_map_refs.insert(E.value);
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}
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for (Ref<GDScriptParserRef> &E : parser_map_refs) {
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if (E.is_valid())
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E->clear();
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}
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singleton->packed_scene_dependencies.clear();
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singleton->packed_scene_cache.clear();
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parser_map_refs.clear();
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singleton->parser_map.clear();
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singleton->shallow_gdscript_cache.clear();
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singleton->full_gdscript_cache.clear();
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singleton->packed_scene_cache.clear();
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singleton->packed_scene_dependencies.clear();
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}
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GDScriptCache::GDScriptCache() {
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singleton = this;
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}
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GDScriptCache::~GDScriptCache() {
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if (!cleared) {
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clear();
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}
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singleton = nullptr;
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}
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