mirror of
https://github.com/godotengine/godot
synced 2024-11-02 11:59:10 +00:00
165 lines
6.6 KiB
C++
165 lines
6.6 KiB
C++
/*************************************************************************/
|
|
/* gd_compiler.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* http://www.godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2016 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 GD_COMPILER_H
|
|
#define GD_COMPILER_H
|
|
|
|
#include "gd_parser.h"
|
|
#include "gd_script.h"
|
|
|
|
|
|
class GDCompiler {
|
|
|
|
const GDParser *parser;
|
|
struct CodeGen {
|
|
GDScript *script;
|
|
const GDParser::ClassNode *class_node;
|
|
const GDParser::FunctionNode *function_node;
|
|
bool debug_stack;
|
|
|
|
List< Map<StringName,int> > stack_id_stack;
|
|
Map<StringName,int> stack_identifiers;
|
|
|
|
List<GDFunction::StackDebug> stack_debug;
|
|
List< Map<StringName,int> > block_identifier_stack;
|
|
Map<StringName,int> block_identifiers;
|
|
|
|
void add_stack_identifier(const StringName& p_id,int p_stackpos) {
|
|
stack_identifiers[p_id]=p_stackpos;
|
|
if (debug_stack) {
|
|
block_identifiers[p_id]=p_stackpos;
|
|
GDFunction::StackDebug sd;
|
|
sd.added=true;
|
|
sd.line=current_line;
|
|
sd.identifier=p_id;
|
|
sd.pos=p_stackpos;
|
|
stack_debug.push_back(sd);
|
|
}
|
|
}
|
|
|
|
void push_stack_identifiers() {
|
|
stack_id_stack.push_back( stack_identifiers );
|
|
if (debug_stack) {
|
|
|
|
block_identifier_stack.push_back(block_identifiers);
|
|
block_identifiers.clear();
|
|
}
|
|
}
|
|
|
|
void pop_stack_identifiers() {
|
|
stack_identifiers = stack_id_stack.back()->get();
|
|
stack_id_stack.pop_back();
|
|
|
|
if (debug_stack) {
|
|
for (Map<StringName,int>::Element *E=block_identifiers.front();E;E=E->next()) {
|
|
|
|
GDFunction::StackDebug sd;
|
|
sd.added=false;
|
|
sd.identifier=E->key();
|
|
sd.line=current_line;
|
|
sd.pos=E->get();
|
|
stack_debug.push_back(sd);
|
|
}
|
|
block_identifiers=block_identifier_stack.back()->get();
|
|
block_identifier_stack.pop_back();
|
|
}
|
|
}
|
|
|
|
|
|
//int get_identifier_pos(const StringName& p_dentifier) const;
|
|
HashMap<Variant,int,VariantHasher> constant_map;
|
|
Map<StringName,int> name_map;
|
|
|
|
int get_name_map_pos(const StringName& p_identifier) {
|
|
int ret;
|
|
if (!name_map.has(p_identifier)) {
|
|
ret=name_map.size();
|
|
name_map[p_identifier]=ret;
|
|
} else {
|
|
ret=name_map[p_identifier];
|
|
}
|
|
return ret;
|
|
}
|
|
|
|
int get_constant_pos(const Variant& p_constant) {
|
|
if (constant_map.has(p_constant))
|
|
return constant_map[p_constant];
|
|
int pos = constant_map.size();
|
|
constant_map[p_constant]=pos;
|
|
return pos;
|
|
}
|
|
|
|
Vector<int> opcodes;
|
|
void alloc_stack(int p_level) { if (p_level >= stack_max) stack_max=p_level+1; }
|
|
void alloc_call(int p_params) { if (p_params >= call_max) call_max=p_params; }
|
|
|
|
int current_line;
|
|
int stack_max;
|
|
int call_max;
|
|
};
|
|
|
|
#if 0
|
|
void _create_index(const GDParser::OperatorNode *on);
|
|
void _create_call(const GDParser::OperatorNode *on);
|
|
|
|
|
|
int _parse_expression(const GDParser::Node *p_expr,CodeGen& codegen);
|
|
void _parse_block(GDParser::BlockNode *p_block);
|
|
void _parse_function(GDParser::FunctionNode *p_func);
|
|
Ref<GDScript> _parse_class(GDParser::ClassNode *p_class);
|
|
#endif
|
|
|
|
void _set_error(const String& p_error,const GDParser::Node *p_node);
|
|
|
|
bool _create_unary_operator(CodeGen& codegen,const GDParser::OperatorNode *on,Variant::Operator op, int p_stack_level);
|
|
bool _create_binary_operator(CodeGen& codegen,const GDParser::OperatorNode *on,Variant::Operator op, int p_stack_level,bool p_initializer=false);
|
|
|
|
//int _parse_subexpression(CodeGen& codegen,const GDParser::BlockNode *p_block,const GDParser::Node *p_expression);
|
|
int _parse_assign_right_expression(CodeGen& codegen,const GDParser::OperatorNode *p_expression, int p_stack_level);
|
|
int _parse_expression(CodeGen& codegen,const GDParser::Node *p_expression, int p_stack_level,bool p_root=false,bool p_initializer=false);
|
|
Error _parse_block(CodeGen& codegen,const GDParser::BlockNode *p_block,int p_stack_level=0,int p_break_addr=-1,int p_continue_addr=-1);
|
|
Error _parse_function(GDScript *p_script,const GDParser::ClassNode *p_class,const GDParser::FunctionNode *p_func,bool p_for_ready=false);
|
|
Error _parse_class(GDScript *p_script,GDScript *p_owner,const GDParser::ClassNode *p_class,bool p_keep_state);
|
|
int err_line;
|
|
int err_column;
|
|
StringName source;
|
|
String error;
|
|
|
|
public:
|
|
|
|
Error compile(const GDParser *p_parser, GDScript *p_script, bool p_keep_state=false);
|
|
|
|
String get_error() const;
|
|
int get_error_line() const;
|
|
int get_error_column() const;
|
|
|
|
GDCompiler();
|
|
};
|
|
|
|
|
|
#endif // COMPILER_H
|