virtualx-engine/modules/gdscript/gdscript_warning.h
George Marques 0ba6048ad3
Add support for static variables in GDScript
Which allows editable data associated with a particular class instead of
the instance. Scripts with static variables are kept in memory
indefinitely unless the `@static_unload` annotation is used or the
`static_unload()` method is called on the GDScript.

If the custom function `_static_init()` exists it will be called when
the class is loaded, after the static variables are set.
2023-04-27 09:51:44 -03:00

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/**************************************************************************/
/* gdscript_warning.h */
/**************************************************************************/
/* This file is part of: */
/* GODOT ENGINE */
/* https://godotengine.org */
/**************************************************************************/
/* Copyright (c) 2014-present Godot Engine contributors (see AUTHORS.md). */
/* Copyright (c) 2007-2014 Juan Linietsky, Ariel Manzur. */
/* */
/* Permission is hereby granted, free of charge, to any person obtaining */
/* a copy of this software and associated documentation files (the */
/* "Software"), to deal in the Software without restriction, including */
/* without limitation the rights to use, copy, modify, merge, publish, */
/* distribute, sublicense, and/or sell copies of the Software, and to */
/* permit persons to whom the Software is furnished to do so, subject to */
/* the following conditions: */
/* */
/* The above copyright notice and this permission notice shall be */
/* included in all copies or substantial portions of the Software. */
/* */
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. */
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
/**************************************************************************/
#ifndef GDSCRIPT_WARNING_H
#define GDSCRIPT_WARNING_H
#ifdef DEBUG_ENABLED
#include "core/object/object.h"
#include "core/string/ustring.h"
#include "core/templates/vector.h"
class GDScriptWarning {
public:
enum WarnLevel {
IGNORE,
WARN,
ERROR
};
enum Code {
UNASSIGNED_VARIABLE, // Variable used but never assigned.
UNASSIGNED_VARIABLE_OP_ASSIGN, // Variable never assigned but used in an assignment operation (+=, *=, etc).
UNUSED_VARIABLE, // Local variable is declared but never used.
UNUSED_LOCAL_CONSTANT, // Local constant is declared but never used.
SHADOWED_VARIABLE, // Variable name shadowed by other variable in same class.
SHADOWED_VARIABLE_BASE_CLASS, // Variable name shadowed by other variable in some base class.
UNUSED_PRIVATE_CLASS_VARIABLE, // Class variable is declared private ("_" prefix) but never used in the file.
UNUSED_PARAMETER, // Function parameter is never used.
UNREACHABLE_CODE, // Code after a return statement.
UNREACHABLE_PATTERN, // Pattern in a match statement after a catch all pattern (wildcard or bind).
STANDALONE_EXPRESSION, // Expression not assigned to a variable.
NARROWING_CONVERSION, // Float value into an integer slot, precision is lost.
INCOMPATIBLE_TERNARY, // Possible values of a ternary if are not mutually compatible.
UNUSED_SIGNAL, // Signal is defined but never emitted.
RETURN_VALUE_DISCARDED, // Function call returns something but the value isn't used.
PROPERTY_USED_AS_FUNCTION, // Function not found, but there's a property with the same name.
CONSTANT_USED_AS_FUNCTION, // Function not found, but there's a constant with the same name.
FUNCTION_USED_AS_PROPERTY, // Property not found, but there's a function with the same name.
INTEGER_DIVISION, // Integer divide by integer, decimal part is discarded.
UNSAFE_PROPERTY_ACCESS, // Property not found in the detected type (but can be in subtypes).
UNSAFE_METHOD_ACCESS, // Function not found in the detected type (but can be in subtypes).
UNSAFE_CAST, // Cast used in an unknown type.
UNSAFE_CALL_ARGUMENT, // Function call argument is of a supertype of the require argument.
UNSAFE_VOID_RETURN, // Function returns void but returned a call to a function that can't be type checked.
DEPRECATED_KEYWORD, // The keyword is deprecated and should be replaced.
STANDALONE_TERNARY, // Return value of ternary expression is discarded.
ASSERT_ALWAYS_TRUE, // Expression for assert argument is always true.
ASSERT_ALWAYS_FALSE, // Expression for assert argument is always false.
REDUNDANT_AWAIT, // await is used but expression is synchronous (not a signal nor a coroutine).
EMPTY_FILE, // A script file is empty.
SHADOWED_GLOBAL_IDENTIFIER, // A global class or function has the same name as variable.
INT_AS_ENUM_WITHOUT_CAST, // An integer value was used as an enum value without casting.
INT_AS_ENUM_WITHOUT_MATCH, // An integer value was used as an enum value without matching enum member.
STATIC_CALLED_ON_INSTANCE, // A static method was called on an instance of a class instead of on the class itself.
CONFUSABLE_IDENTIFIER, // The identifier contains misleading characters that can be confused. E.g. "usеr" (has Cyrillic "е" instead of Latin "e").
RENAMED_IN_GD4_HINT, // A variable or function that could not be found has been renamed in Godot 4
INFERENCE_ON_VARIANT, // The declaration uses type inference but the value is typed as Variant.
NATIVE_METHOD_OVERRIDE, // The script method overrides a native one, this may not work as intended.
GET_NODE_DEFAULT_WITHOUT_ONREADY, // A class variable uses `get_node()` (or the `$` notation) as its default value, but does not use the @onready annotation.
ONREADY_WITH_EXPORT, // The `@onready` annotation will set the value after `@export` which is likely not intended.
REDUNDANT_STATIC_UNLOAD, // The `@static_unload` annotation is used but the class does not have static data.
WARNING_MAX,
};
constexpr static WarnLevel default_warning_levels[] = {
WARN, // UNASSIGNED_VARIABLE
WARN, // UNASSIGNED_VARIABLE_OP_ASSIGN
WARN, // UNUSED_VARIABLE
WARN, // UNUSED_LOCAL_CONSTANT
WARN, // SHADOWED_VARIABLE
WARN, // SHADOWED_VARIABLE_BASE_CLASS
WARN, // UNUSED_PRIVATE_CLASS_VARIABLE
WARN, // UNUSED_PARAMETER
WARN, // UNREACHABLE_CODE
WARN, // UNREACHABLE_PATTERN
WARN, // STANDALONE_EXPRESSION
WARN, // NARROWING_CONVERSION
WARN, // INCOMPATIBLE_TERNARY
WARN, // UNUSED_SIGNAL
IGNORE, // RETURN_VALUE_DISCARDED // Too spammy by default on common cases (connect, Tween, etc.).
WARN, // PROPERTY_USED_AS_FUNCTION
WARN, // CONSTANT_USED_AS_FUNCTION
WARN, // FUNCTION_USED_AS_PROPERTY
WARN, // INTEGER_DIVISION
IGNORE, // UNSAFE_PROPERTY_ACCESS // Too common in untyped scenarios.
IGNORE, // UNSAFE_METHOD_ACCESS // Too common in untyped scenarios.
IGNORE, // UNSAFE_CAST // Too common in untyped scenarios.
IGNORE, // UNSAFE_CALL_ARGUMENT // Too common in untyped scenarios.
WARN, // UNSAFE_VOID_RETURN
WARN, // DEPRECATED_KEYWORD
WARN, // STANDALONE_TERNARY
WARN, // ASSERT_ALWAYS_TRUE
WARN, // ASSERT_ALWAYS_FALSE
WARN, // REDUNDANT_AWAIT
WARN, // EMPTY_FILE
WARN, // SHADOWED_GLOBAL_IDENTIFIER
WARN, // INT_AS_ENUM_WITHOUT_CAST
WARN, // INT_AS_ENUM_WITHOUT_MATCH
WARN, // STATIC_CALLED_ON_INSTANCE
WARN, // CONFUSABLE_IDENTIFIER
WARN, // RENAMED_IN_GD4_HINT
ERROR, // INFERENCE_ON_VARIANT // Most likely done by accident, usually inference is trying for a particular type.
ERROR, // NATIVE_METHOD_OVERRIDE // May not work as expected.
ERROR, // GET_NODE_DEFAULT_WITHOUT_ONREADY // May not work as expected.
ERROR, // ONREADY_WITH_EXPORT // May not work as expected.
WARN, // REDUNDANT_STATIC_UNLOAD
};
static_assert((sizeof(default_warning_levels) / sizeof(default_warning_levels[0])) == WARNING_MAX, "Amount of default levels does not match the amount of warnings.");
Code code = WARNING_MAX;
int start_line = -1, end_line = -1;
int leftmost_column = -1, rightmost_column = -1;
Vector<String> symbols;
String get_name() const;
String get_message() const;
static int get_default_value(Code p_code);
static PropertyInfo get_property_info(Code p_code);
static String get_name_from_code(Code p_code);
static String get_settings_path_from_code(Code p_code);
static Code get_code_from_name(const String &p_name);
};
#endif // DEBUG_ENABLED
#endif // GDSCRIPT_WARNING_H