2e528ef382
- Replace the for loop temporaries by locals. They cause conflicts with the stack when being popped, while locals are properly handled in the scope. - Change the interface for the codegen so the for loop list doesn't live through the whole block if it's a temporary. - Keep track of the actual amount of local variables in the stack. Using the size of the map is misleading in cases where multiple locals have the same name (which is allowed when there's no shadowing). - Added a few debug checks for temporaries, to avoid them being wrongly manipulated in the future. They should not live more than a line of code. - Rearrange some of compiler code to make sure the temporaries don't live across blocks.
164 lines
9.1 KiB
C++
164 lines
9.1 KiB
C++
/*************************************************************************/
|
|
/* gdscript_codegen.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2020 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* 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_CODEGEN
|
|
#define GDSCRIPT_CODEGEN
|
|
|
|
#include "core/io/multiplayer_api.h"
|
|
#include "core/string/string_name.h"
|
|
#include "core/variant/variant.h"
|
|
#include "gdscript_function.h"
|
|
#include "gdscript_functions.h"
|
|
|
|
class GDScriptCodeGenerator {
|
|
public:
|
|
struct Address {
|
|
enum AddressMode {
|
|
SELF,
|
|
CLASS,
|
|
MEMBER,
|
|
CONSTANT,
|
|
CLASS_CONSTANT,
|
|
LOCAL_CONSTANT,
|
|
LOCAL_VARIABLE,
|
|
FUNCTION_PARAMETER,
|
|
TEMPORARY,
|
|
GLOBAL,
|
|
NAMED_GLOBAL,
|
|
NIL,
|
|
};
|
|
AddressMode mode = NIL;
|
|
uint32_t address = 0;
|
|
GDScriptDataType type;
|
|
|
|
Address() {}
|
|
Address(AddressMode p_mode, const GDScriptDataType &p_type = GDScriptDataType()) {
|
|
mode = p_mode;
|
|
type = p_type;
|
|
}
|
|
Address(AddressMode p_mode, uint32_t p_address, const GDScriptDataType &p_type = GDScriptDataType()) {
|
|
mode = p_mode,
|
|
address = p_address;
|
|
type = p_type;
|
|
}
|
|
};
|
|
|
|
virtual uint32_t add_parameter(const StringName &p_name, bool p_is_optional, const GDScriptDataType &p_type) = 0;
|
|
virtual uint32_t add_local(const StringName &p_name, const GDScriptDataType &p_type) = 0;
|
|
virtual uint32_t add_local_constant(const StringName &p_name, const Variant &p_constant) = 0;
|
|
virtual uint32_t add_or_get_constant(const Variant &p_constant) = 0;
|
|
virtual uint32_t add_or_get_name(const StringName &p_name) = 0;
|
|
virtual uint32_t add_temporary() = 0;
|
|
virtual void pop_temporary() = 0;
|
|
|
|
virtual void start_parameters() = 0;
|
|
virtual void end_parameters() = 0;
|
|
|
|
virtual void start_block() = 0;
|
|
virtual void end_block() = 0;
|
|
|
|
// virtual int get_max_stack_level() = 0;
|
|
// virtual int get_max_function_arguments() = 0;
|
|
|
|
virtual void write_start(GDScript *p_script, const StringName &p_function_name, bool p_static, MultiplayerAPI::RPCMode p_rpc_mode, const GDScriptDataType &p_return_type) = 0;
|
|
virtual GDScriptFunction *write_end() = 0;
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
virtual void set_signature(const String &p_signature) = 0;
|
|
#endif
|
|
virtual void set_initial_line(int p_line) = 0;
|
|
|
|
// virtual void alloc_stack(int p_level) = 0; // Is this needed?
|
|
// virtual void alloc_call(int p_arg_count) = 0; // This might be automatic from other functions.
|
|
|
|
virtual void write_operator(const Address &p_target, Variant::Operator p_operator, const Address &p_left_operand, const Address &p_right_operand) = 0;
|
|
virtual void write_type_test(const Address &p_target, const Address &p_source, const Address &p_type) = 0;
|
|
virtual void write_type_test_builtin(const Address &p_target, const Address &p_source, Variant::Type p_type) = 0;
|
|
virtual void write_and_left_operand(const Address &p_left_operand) = 0;
|
|
virtual void write_and_right_operand(const Address &p_right_operand) = 0;
|
|
virtual void write_end_and(const Address &p_target) = 0;
|
|
virtual void write_or_left_operand(const Address &p_left_operand) = 0;
|
|
virtual void write_or_right_operand(const Address &p_right_operand) = 0;
|
|
virtual void write_end_or(const Address &p_target) = 0;
|
|
virtual void write_start_ternary(const Address &p_target) = 0;
|
|
virtual void write_ternary_condition(const Address &p_condition) = 0;
|
|
virtual void write_ternary_true_expr(const Address &p_expr) = 0;
|
|
virtual void write_ternary_false_expr(const Address &p_expr) = 0;
|
|
virtual void write_end_ternary() = 0;
|
|
virtual void write_set(const Address &p_target, const Address &p_index, const Address &p_source) = 0;
|
|
virtual void write_get(const Address &p_target, const Address &p_index, const Address &p_source) = 0;
|
|
virtual void write_set_named(const Address &p_target, const StringName &p_name, const Address &p_source) = 0;
|
|
virtual void write_get_named(const Address &p_target, const StringName &p_name, const Address &p_source) = 0;
|
|
virtual void write_set_member(const Address &p_value, const StringName &p_name) = 0;
|
|
virtual void write_get_member(const Address &p_target, const StringName &p_name) = 0;
|
|
virtual void write_assign(const Address &p_target, const Address &p_source) = 0;
|
|
virtual void write_assign_true(const Address &p_target) = 0;
|
|
virtual void write_assign_false(const Address &p_target) = 0;
|
|
virtual void write_cast(const Address &p_target, const Address &p_source, const GDScriptDataType &p_type) = 0;
|
|
virtual void write_call(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_super_call(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_call_async(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_call_builtin(const Address &p_target, GDScriptFunctions::Function p_function, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_call_builtin_type(const Address &p_target, const Address &p_base, Variant::Type p_type, const StringName &p_method, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_call_method_bind(const Address &p_target, const Address &p_base, MethodBind *p_method, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_call_ptrcall(const Address &p_target, const Address &p_base, MethodBind *p_method, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_call_self(const Address &p_target, const StringName &p_function_name, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_call_script_function(const Address &p_target, const Address &p_base, const StringName &p_function_name, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_construct(const Address &p_target, Variant::Type p_type, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_construct_array(const Address &p_target, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_construct_dictionary(const Address &p_target, const Vector<Address> &p_arguments) = 0;
|
|
virtual void write_await(const Address &p_target, const Address &p_operand) = 0;
|
|
virtual void write_if(const Address &p_condition) = 0;
|
|
// virtual void write_elseif(const Address &p_condition) = 0; This kind of makes things more difficult for no real benefit.
|
|
virtual void write_else() = 0;
|
|
virtual void write_endif() = 0;
|
|
virtual void start_for(const GDScriptDataType &p_iterator_type, const GDScriptDataType &p_list_type) = 0;
|
|
virtual void write_for_assignment(const Address &p_variable, const Address &p_list) = 0;
|
|
virtual void write_for() = 0;
|
|
virtual void write_endfor() = 0;
|
|
virtual void start_while_condition() = 0; // Used to allow a jump to the expression evaluation.
|
|
virtual void write_while(const Address &p_condition) = 0;
|
|
virtual void write_endwhile() = 0;
|
|
virtual void start_match() = 0;
|
|
virtual void start_match_branch() = 0;
|
|
virtual void end_match() = 0;
|
|
virtual void write_break() = 0;
|
|
virtual void write_continue() = 0;
|
|
virtual void write_continue_match() = 0;
|
|
virtual void write_breakpoint() = 0;
|
|
virtual void write_newline(int p_line) = 0;
|
|
virtual void write_return(const Address &p_return_value) = 0;
|
|
virtual void write_assert(const Address &p_test, const Address &p_message) = 0;
|
|
|
|
virtual ~GDScriptCodeGenerator() {}
|
|
};
|
|
|
|
#endif // GDSCRIPT_CODEGEN
|