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/**************************************************************************/
/* gdscript_compiler.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_COMPILER_H
#define GDSCRIPT_COMPILER_H
#include "gdscript.h"
#include "gdscript_codegen.h"
#include "gdscript_function.h"
#include "gdscript_parser.h"
#include "core/templates/hash_set.h"
class GDScriptCompiler {
const GDScriptParser *parser = nullptr;
HashSet<GDScript *> parsed_classes;
HashSet<GDScript *> parsing_classes;
GDScript *main_script = nullptr;
struct FunctionLambdaInfo {
GDScriptFunction *function = nullptr;
GDScriptFunction *parent = nullptr;
GDScript *script = nullptr;
StringName name;
int line = 0;
int index = 0;
int depth = 0;
//uint64_t code_hash;
//int code_size;
int capture_count = 0;
bool use_self = false;
int arg_count = 0;
int default_arg_count = 0;
//Vector<GDScriptDataType> argument_types;
//GDScriptDataType return_type;
Vector<FunctionLambdaInfo> sublambdas;
};
struct ScriptLambdaInfo {
Vector<FunctionLambdaInfo> implicit_initializer_info;
Vector<FunctionLambdaInfo> implicit_ready_info;
Vector<FunctionLambdaInfo> static_initializer_info;
HashMap<StringName, Vector<FunctionLambdaInfo>> member_function_infos;
Vector<FunctionLambdaInfo> other_function_infos;
HashMap<StringName, ScriptLambdaInfo> subclass_info;
};
struct CodeGen {
GDScript *script = nullptr;
const GDScriptParser::ClassNode *class_node = nullptr;
const GDScriptParser::FunctionNode *function_node = nullptr;
StringName function_name;
GDScriptCodeGenerator *generator = nullptr;
HashMap<StringName, GDScriptCodeGenerator::Address> parameters;
HashMap<StringName, GDScriptCodeGenerator::Address> locals;
List<HashMap<StringName, GDScriptCodeGenerator::Address>> locals_stack;
bool is_static = false;
GDScriptCodeGenerator::Address add_local(const StringName &p_name, const GDScriptDataType &p_type) {
uint32_t addr = generator->add_local(p_name, p_type);
locals[p_name] = GDScriptCodeGenerator::Address(GDScriptCodeGenerator::Address::LOCAL_VARIABLE, addr, p_type);
return locals[p_name];
}
GDScriptCodeGenerator::Address add_local_constant(const StringName &p_name, const Variant &p_value) {
uint32_t addr = generator->add_local_constant(p_name, p_value);
locals[p_name] = GDScriptCodeGenerator::Address(GDScriptCodeGenerator::Address::CONSTANT, addr);
return locals[p_name];
}
GDScriptCodeGenerator::Address add_temporary(const GDScriptDataType &p_type = GDScriptDataType()) {
uint32_t addr = generator->add_temporary(p_type);
return GDScriptCodeGenerator::Address(GDScriptCodeGenerator::Address::TEMPORARY, addr, p_type);
}
GDScriptCodeGenerator::Address add_constant(const Variant &p_constant) {
GDScriptDataType type;
type.has_type = true;
type.kind = GDScriptDataType::BUILTIN;
type.builtin_type = p_constant.get_type();
if (type.builtin_type == Variant::OBJECT) {
Object *obj = p_constant;
if (obj) {
type.kind = GDScriptDataType::NATIVE;
type.native_type = obj->get_class_name();
Ref<Script> scr = obj->get_script();
if (scr.is_valid()) {
type.script_type = scr.ptr();
Ref<GDScript> gdscript = scr;
if (gdscript.is_valid()) {
type.kind = GDScriptDataType::GDSCRIPT;
} else {
type.kind = GDScriptDataType::SCRIPT;
}
}
} else {
type.builtin_type = Variant::NIL;
}
}
uint32_t addr = generator->add_or_get_constant(p_constant);
return GDScriptCodeGenerator::Address(GDScriptCodeGenerator::Address::CONSTANT, addr, type);
}
void start_block() {
HashMap<StringName, GDScriptCodeGenerator::Address> old_locals = locals;
locals_stack.push_back(old_locals);
generator->start_block();
}
void end_block() {
locals = locals_stack.back()->get();
locals_stack.pop_back();
generator->end_block();
}
};
bool _is_class_member_property(CodeGen &codegen, const StringName &p_name);
bool _is_class_member_property(GDScript *owner, const StringName &p_name);
bool _is_local_or_parameter(CodeGen &codegen, const StringName &p_name);
void _set_error(const String &p_error, const GDScriptParser::Node *p_node);
GDScriptDataType _gdtype_from_datatype(const GDScriptParser::DataType &p_datatype, GDScript *p_owner, bool p_handle_metatype = true);
GDScriptCodeGenerator::Address _parse_expression(CodeGen &codegen, Error &r_error, const GDScriptParser::ExpressionNode *p_expression, bool p_root = false, bool p_initializer = false);
GDScriptCodeGenerator::Address _parse_match_pattern(CodeGen &codegen, Error &r_error, const GDScriptParser::PatternNode *p_pattern, const GDScriptCodeGenerator::Address &p_value_addr, const GDScriptCodeGenerator::Address &p_type_addr, const GDScriptCodeGenerator::Address &p_previous_test, bool p_is_first, bool p_is_nested);
List<GDScriptCodeGenerator::Address> _add_block_locals(CodeGen &codegen, const GDScriptParser::SuiteNode *p_block);
void _clear_block_locals(CodeGen &codegen, const List<GDScriptCodeGenerator::Address> &p_locals);
Error _parse_block(CodeGen &codegen, const GDScriptParser::SuiteNode *p_block, bool p_add_locals = true, bool p_clear_locals = true);
GDScriptFunction *_parse_function(Error &r_error, GDScript *p_script, const GDScriptParser::ClassNode *p_class, const GDScriptParser::FunctionNode *p_func, bool p_for_ready = false, bool p_for_lambda = false);
GDScriptFunction *_make_static_initializer(Error &r_error, GDScript *p_script, const GDScriptParser::ClassNode *p_class);
Error _parse_setter_getter(GDScript *p_script, const GDScriptParser::ClassNode *p_class, const GDScriptParser::VariableNode *p_variable, bool p_is_setter);
Error _prepare_compilation(GDScript *p_script, const GDScriptParser::ClassNode *p_class, bool p_keep_state);
Error _compile_class(GDScript *p_script, const GDScriptParser::ClassNode *p_class, bool p_keep_state);
FunctionLambdaInfo _get_function_replacement_info(GDScriptFunction *p_func, int p_index = -1, int p_depth = 0, GDScriptFunction *p_parent_func = nullptr);
Vector<FunctionLambdaInfo> _get_function_lambda_replacement_info(GDScriptFunction *p_func, int p_depth = 0, GDScriptFunction *p_parent_func = nullptr);
ScriptLambdaInfo _get_script_lambda_replacement_info(GDScript *p_script);
bool _do_function_infos_match(const FunctionLambdaInfo &p_old_info, const FunctionLambdaInfo *p_new_info);
void _get_function_ptr_replacements(HashMap<GDScriptFunction *, GDScriptFunction *> &r_replacements, const FunctionLambdaInfo &p_old_info, const FunctionLambdaInfo *p_new_info);
void _get_function_ptr_replacements(HashMap<GDScriptFunction *, GDScriptFunction *> &r_replacements, const Vector<FunctionLambdaInfo> &p_old_infos, const Vector<FunctionLambdaInfo> *p_new_infos);
void _get_function_ptr_replacements(HashMap<GDScriptFunction *, GDScriptFunction *> &r_replacements, const ScriptLambdaInfo &p_old_info, const ScriptLambdaInfo *p_new_info);
int err_line = 0;
int err_column = 0;
StringName source;
String error;
GDScriptParser::ExpressionNode *awaited_node = nullptr;
bool has_static_data = false;
public:
static void convert_to_initializer_type(Variant &p_variant, const GDScriptParser::VariableNode *p_node);
static void make_scripts(GDScript *p_script, const GDScriptParser::ClassNode *p_class, bool p_keep_state);
Error compile(const GDScriptParser *p_parser, GDScript *p_script, bool p_keep_state = false);
String get_error() const;
int get_error_line() const;
int get_error_column() const;
GDScriptCompiler();
};
#endif // GDSCRIPT_COMPILER_H
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