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