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https://github.com/godotengine/godot
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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".
155 lines
8.1 KiB
C++
155 lines
8.1 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 "core/templates/hash_set.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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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 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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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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Error _create_binary_operator(CodeGen &codegen, const GDScriptParser::BinaryOpNode *on, Variant::Operator op, bool p_initializer = false, const GDScriptCodeGenerator::Address &p_index_addr = GDScriptCodeGenerator::Address());
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Error _create_binary_operator(CodeGen &codegen, const GDScriptParser::ExpressionNode *p_left_operand, const GDScriptParser::ExpressionNode *p_right_operand, Variant::Operator op, bool p_initializer = false, const GDScriptCodeGenerator::Address &p_index_addr = GDScriptCodeGenerator::Address());
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GDScriptDataType _gdtype_from_datatype(const GDScriptParser::DataType &p_datatype, GDScript *p_owner);
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GDScriptCodeGenerator::Address _parse_assign_right_expression(CodeGen &codegen, Error &r_error, const GDScriptParser::AssignmentNode *p_assignmentint, const GDScriptCodeGenerator::Address &p_index_addr = GDScriptCodeGenerator::Address());
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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, const GDScriptCodeGenerator::Address &p_index_addr = GDScriptCodeGenerator::Address());
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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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void _add_locals_in_block(CodeGen &codegen, const GDScriptParser::SuiteNode *p_block);
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Error _parse_block(CodeGen &codegen, const GDScriptParser::SuiteNode *p_block, bool p_add_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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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 _populate_class_members(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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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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bool within_await = 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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