d8223ffa75
That year should bring the long-awaited OpenGL ES 3.0 compatible renderer
with state-of-the-art rendering techniques tuned to work as low as middle
end handheld devices - without compromising with the possibilities given
for higher end desktop games of course. Great times ahead for the Godot
community and the gamers that will play our games!
(cherry picked from commit c7bc44d5ad)
1918 lines
58 KiB
C++
1918 lines
58 KiB
C++
/*************************************************************************/
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/* gd_compiler.cpp */
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/*************************************************************************/
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/* This file is part of: */
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/* GODOT ENGINE */
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/* http://www.godotengine.org */
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/*************************************************************************/
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/* Copyright (c) 2007-2017 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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#include "gd_compiler.h"
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#include "gd_script.h"
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void GDCompiler::_set_error(const String& p_error,const GDParser::Node *p_node) {
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if (error!="")
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return;
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error=p_error;
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if (p_node) {
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err_line=p_node->line;
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err_column=p_node->column;
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} else {
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err_line=0;
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err_column=0;
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}
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}
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bool GDCompiler::_create_unary_operator(CodeGen& codegen,const GDParser::OperatorNode *on,Variant::Operator op, int p_stack_level) {
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ERR_FAIL_COND_V(on->arguments.size()!=1,false);
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int src_address_a = _parse_expression(codegen,on->arguments[0],p_stack_level);
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if (src_address_a<0)
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return false;
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codegen.opcodes.push_back(GDFunction::OPCODE_OPERATOR); // perform operator
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codegen.opcodes.push_back(op); //which operator
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codegen.opcodes.push_back(src_address_a); // argument 1
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codegen.opcodes.push_back(src_address_a); // argument 2 (repeated)
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//codegen.opcodes.push_back(GDFunction::ADDR_TYPE_NIL); // argument 2 (unary only takes one parameter)
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return true;
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}
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bool GDCompiler::_create_binary_operator(CodeGen& codegen,const GDParser::OperatorNode *on,Variant::Operator op, int p_stack_level,bool p_initializer) {
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ERR_FAIL_COND_V(on->arguments.size()!=2,false);
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int src_address_a = _parse_expression(codegen,on->arguments[0],p_stack_level,false,p_initializer);
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if (src_address_a<0)
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return false;
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if (src_address_a&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS)
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p_stack_level++; //uses stack for return, increase stack
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int src_address_b = _parse_expression(codegen,on->arguments[1],p_stack_level,false,p_initializer);
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if (src_address_b<0)
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return false;
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codegen.opcodes.push_back(GDFunction::OPCODE_OPERATOR); // perform operator
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codegen.opcodes.push_back(op); //which operator
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codegen.opcodes.push_back(src_address_a); // argument 1
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codegen.opcodes.push_back(src_address_b); // argument 2 (unary only takes one parameter)
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return true;
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}
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/*
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int GDCompiler::_parse_subexpression(CodeGen& codegen,const GDParser::Node *p_expression) {
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int ret = _parse_expression(codegen,p_expression);
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if (ret<0)
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return ret;
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if (ret&(GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS)) {
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codegen.stack_level++;
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codegen.check_max_stack_level();
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//stack was used, keep value
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}
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return ret;
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}
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*/
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int GDCompiler::_parse_assign_right_expression(CodeGen& codegen,const GDParser::OperatorNode *p_expression, int p_stack_level) {
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Variant::Operator var_op=Variant::OP_MAX;
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switch(p_expression->op) {
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case GDParser::OperatorNode::OP_ASSIGN_ADD: var_op=Variant::OP_ADD; break;
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case GDParser::OperatorNode::OP_ASSIGN_SUB: var_op=Variant::OP_SUBSTRACT; break;
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case GDParser::OperatorNode::OP_ASSIGN_MUL: var_op=Variant::OP_MULTIPLY; break;
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case GDParser::OperatorNode::OP_ASSIGN_DIV: var_op=Variant::OP_DIVIDE; break;
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case GDParser::OperatorNode::OP_ASSIGN_MOD: var_op=Variant::OP_MODULE; break;
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case GDParser::OperatorNode::OP_ASSIGN_SHIFT_LEFT: var_op=Variant::OP_SHIFT_LEFT; break;
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case GDParser::OperatorNode::OP_ASSIGN_SHIFT_RIGHT: var_op=Variant::OP_SHIFT_RIGHT; break;
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case GDParser::OperatorNode::OP_ASSIGN_BIT_AND: var_op=Variant::OP_BIT_AND; break;
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case GDParser::OperatorNode::OP_ASSIGN_BIT_OR: var_op=Variant::OP_BIT_OR; break;
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case GDParser::OperatorNode::OP_ASSIGN_BIT_XOR: var_op=Variant::OP_BIT_XOR; break;
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case GDParser::OperatorNode::OP_INIT_ASSIGN:
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case GDParser::OperatorNode::OP_ASSIGN: {
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//none
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} break;
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default: {
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ERR_FAIL_V(-1);
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}
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}
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bool initializer = p_expression->op==GDParser::OperatorNode::OP_INIT_ASSIGN;
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if (var_op==Variant::OP_MAX) {
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return _parse_expression(codegen,p_expression->arguments[1],p_stack_level,false,initializer);
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}
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if (!_create_binary_operator(codegen,p_expression,var_op,p_stack_level,initializer))
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return -1;
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int dst_addr=(p_stack_level)|(GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
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codegen.opcodes.push_back(dst_addr); // append the stack level as destination address of the opcode
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codegen.alloc_stack(p_stack_level);
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return dst_addr;
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}
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int GDCompiler::_parse_expression(CodeGen& codegen,const GDParser::Node *p_expression, int p_stack_level,bool p_root,bool p_initializer) {
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switch(p_expression->type) {
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//should parse variable declaration and adjust stack accordingly...
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case GDParser::Node::TYPE_IDENTIFIER: {
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//return identifier
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//wait, identifier could be a local variable or something else... careful here, must reference properly
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//as stack may be more interesting to work with
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//This could be made much simpler by just indexing "self", but done this way (with custom self-addressing modes) increases peformance a lot.
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const GDParser::IdentifierNode *in = static_cast<const GDParser::IdentifierNode*>(p_expression);
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StringName identifier = in->name;
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// TRY STACK!
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if (!p_initializer && codegen.stack_identifiers.has(identifier)) {
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int pos = codegen.stack_identifiers[identifier];
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return pos|(GDFunction::ADDR_TYPE_STACK_VARIABLE<<GDFunction::ADDR_BITS);
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}
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//TRY MEMBERS!
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if (!codegen.function_node || !codegen.function_node->_static) {
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// TRY MEMBER VARIABLES!
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//static function
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if (codegen.script->member_indices.has(identifier)) {
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int idx = codegen.script->member_indices[identifier].index;
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return idx|(GDFunction::ADDR_TYPE_MEMBER<<GDFunction::ADDR_BITS); //argument (stack root)
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}
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}
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//TRY CLASS CONSTANTS
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GDScript *owner = codegen.script;
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while (owner) {
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GDScript *scr = owner;
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GDNativeClass *nc=NULL;
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while(scr) {
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if (scr->constants.has(identifier)) {
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//int idx=scr->constants[identifier];
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int idx = codegen.get_name_map_pos(identifier);
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return idx|(GDFunction::ADDR_TYPE_CLASS_CONSTANT<<GDFunction::ADDR_BITS); //argument (stack root)
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}
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if (scr->native.is_valid())
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nc=scr->native.ptr();
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scr=scr->_base;
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}
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// CLASS C++ Integer Constant
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if (nc) {
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bool success=false;
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int constant = ObjectTypeDB::get_integer_constant(nc->get_name(),identifier,&success);
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if (success) {
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Variant key=constant;
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int idx;
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if (!codegen.constant_map.has(key)) {
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idx=codegen.constant_map.size();
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codegen.constant_map[key]=idx;
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} else {
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idx=codegen.constant_map[key];
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}
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return idx|(GDFunction::ADDR_TYPE_LOCAL_CONSTANT<<GDFunction::ADDR_BITS); //make it a local constant (faster access)
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}
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}
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owner=owner->_owner;
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}
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/*
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handled in constants now
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if (codegen.script->subclasses.has(identifier)) {
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//same with a subclass, make it a local constant.
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int idx = codegen.get_constant_pos(codegen.script->subclasses[identifier]);
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return idx|(GDFunction::ADDR_TYPE_LOCAL_CONSTANT<<GDFunction::ADDR_BITS); //make it a local constant (faster access)
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}*/
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if (GDScriptLanguage::get_singleton()->get_global_map().has(identifier)) {
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int idx = GDScriptLanguage::get_singleton()->get_global_map()[identifier];
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return idx|(GDFunction::ADDR_TYPE_GLOBAL<<GDFunction::ADDR_BITS); //argument (stack root)
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}
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//not found, error
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_set_error("Identifier not found: "+String(identifier),p_expression);
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return -1;
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} break;
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case GDParser::Node::TYPE_CONSTANT: {
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//return constant
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const GDParser::ConstantNode *cn = static_cast<const GDParser::ConstantNode*>(p_expression);
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int idx;
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if (!codegen.constant_map.has(cn->value)) {
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idx=codegen.constant_map.size();
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codegen.constant_map[cn->value]=idx;
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} else {
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idx=codegen.constant_map[cn->value];
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}
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return idx|(GDFunction::ADDR_TYPE_LOCAL_CONSTANT<<GDFunction::ADDR_BITS); //argument (stack root)
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} break;
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case GDParser::Node::TYPE_SELF: {
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//return constant
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if (codegen.function_node && codegen.function_node->_static) {
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_set_error("'self' not present in static function!",p_expression);
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return -1;
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}
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return (GDFunction::ADDR_TYPE_SELF<<GDFunction::ADDR_BITS);
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} break;
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case GDParser::Node::TYPE_ARRAY: {
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const GDParser::ArrayNode *an = static_cast<const GDParser::ArrayNode*>(p_expression);
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Vector<int> values;
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int slevel=p_stack_level;
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for(int i=0;i<an->elements.size();i++) {
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int ret = _parse_expression(codegen,an->elements[i],slevel);
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if (ret<0)
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return ret;
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if (ret&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
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slevel++;
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codegen.alloc_stack(slevel);
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}
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values.push_back(ret);
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}
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codegen.opcodes.push_back(GDFunction::OPCODE_CONSTRUCT_ARRAY);
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codegen.opcodes.push_back(values.size());
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for(int i=0;i<values.size();i++)
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codegen.opcodes.push_back(values[i]);
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int dst_addr=(p_stack_level)|(GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
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codegen.opcodes.push_back(dst_addr); // append the stack level as destination address of the opcode
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codegen.alloc_stack(p_stack_level);
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return dst_addr;
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} break;
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case GDParser::Node::TYPE_DICTIONARY: {
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const GDParser::DictionaryNode *dn = static_cast<const GDParser::DictionaryNode*>(p_expression);
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Vector<int> values;
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int slevel=p_stack_level;
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for(int i=0;i<dn->elements.size();i++) {
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int ret = _parse_expression(codegen,dn->elements[i].key,slevel);
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if (ret<0)
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return ret;
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if (ret&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
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slevel++;
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codegen.alloc_stack(slevel);
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}
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values.push_back(ret);
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ret = _parse_expression(codegen,dn->elements[i].value,slevel);
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if (ret<0)
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return ret;
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if (ret&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
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slevel++;
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codegen.alloc_stack(slevel);
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}
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values.push_back(ret);
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}
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codegen.opcodes.push_back(GDFunction::OPCODE_CONSTRUCT_DICTIONARY);
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codegen.opcodes.push_back(dn->elements.size());
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for(int i=0;i<values.size();i++)
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codegen.opcodes.push_back(values[i]);
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int dst_addr=(p_stack_level)|(GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
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codegen.opcodes.push_back(dst_addr); // append the stack level as destination address of the opcode
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codegen.alloc_stack(p_stack_level);
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return dst_addr;
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} break;
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case GDParser::Node::TYPE_OPERATOR: {
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//hell breaks loose
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const GDParser::OperatorNode *on = static_cast<const GDParser::OperatorNode*>(p_expression);
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switch(on->op) {
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//call/constructor operator
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case GDParser::OperatorNode::OP_PARENT_CALL: {
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ERR_FAIL_COND_V(on->arguments.size()<1,-1);
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const GDParser::IdentifierNode *in = (const GDParser::IdentifierNode *)on->arguments[0];
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Vector<int> arguments;
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int slevel = p_stack_level;
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for(int i=1;i<on->arguments.size();i++) {
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int ret = _parse_expression(codegen,on->arguments[i],slevel);
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if (ret<0)
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return ret;
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if (ret&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
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slevel++;
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codegen.alloc_stack(slevel);
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}
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arguments.push_back(ret);
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}
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//push call bytecode
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codegen.opcodes.push_back(GDFunction::OPCODE_CALL_SELF_BASE); // basic type constructor
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codegen.opcodes.push_back(codegen.get_name_map_pos(in->name)); //instance
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codegen.opcodes.push_back(arguments.size()); //argument count
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codegen.alloc_call(arguments.size());
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for(int i=0;i<arguments.size();i++)
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codegen.opcodes.push_back(arguments[i]); //arguments
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} break;
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case GDParser::OperatorNode::OP_CALL: {
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if (on->arguments[0]->type==GDParser::Node::TYPE_TYPE) {
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//construct a basic type
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ERR_FAIL_COND_V(on->arguments.size()<1,-1);
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const GDParser::TypeNode *tn = (const GDParser::TypeNode *)on->arguments[0];
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int vtype = tn->vtype;
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Vector<int> arguments;
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int slevel = p_stack_level;
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for(int i=1;i<on->arguments.size();i++) {
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int ret = _parse_expression(codegen,on->arguments[i],slevel);
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if (ret<0)
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return ret;
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if (ret&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
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slevel++;
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codegen.alloc_stack(slevel);
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}
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arguments.push_back(ret);
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}
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//push call bytecode
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codegen.opcodes.push_back(GDFunction::OPCODE_CONSTRUCT); // basic type constructor
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codegen.opcodes.push_back(vtype); //instance
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codegen.opcodes.push_back(arguments.size()); //argument count
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codegen.alloc_call(arguments.size());
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for(int i=0;i<arguments.size();i++)
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codegen.opcodes.push_back(arguments[i]); //arguments
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} else if (on->arguments[0]->type==GDParser::Node::TYPE_BUILT_IN_FUNCTION) {
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//built in function
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ERR_FAIL_COND_V(on->arguments.size()<1,-1);
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Vector<int> arguments;
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int slevel = p_stack_level;
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for(int i=1;i<on->arguments.size();i++) {
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int ret = _parse_expression(codegen,on->arguments[i],slevel);
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if (ret<0)
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return ret;
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if (ret&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
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slevel++;
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codegen.alloc_stack(slevel);
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}
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arguments.push_back(ret);
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}
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codegen.opcodes.push_back(GDFunction::OPCODE_CALL_BUILT_IN);
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codegen.opcodes.push_back(static_cast<const GDParser::BuiltInFunctionNode*>(on->arguments[0])->function);
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codegen.opcodes.push_back(on->arguments.size()-1);
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codegen.alloc_call(on->arguments.size()-1);
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for(int i=0;i<arguments.size();i++)
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codegen.opcodes.push_back(arguments[i]);
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} else {
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//regular function
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ERR_FAIL_COND_V(on->arguments.size()<2,-1);
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const GDParser::Node *instance = on->arguments[0];
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if (instance->type==GDParser::Node::TYPE_SELF) {
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//room for optimization
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}
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Vector<int> arguments;
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int slevel = p_stack_level;
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for(int i=0;i<on->arguments.size();i++) {
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int ret;
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if (i==0 && on->arguments[i]->type==GDParser::Node::TYPE_SELF && codegen.function_node && codegen.function_node->_static) {
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//static call to self
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ret=(GDFunction::ADDR_TYPE_CLASS<<GDFunction::ADDR_BITS);
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} else if (i==1) {
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if (on->arguments[i]->type!=GDParser::Node::TYPE_IDENTIFIER) {
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_set_error("Attempt to call a non-identifier.",on);
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return -1;
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}
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GDParser::IdentifierNode *id = static_cast<GDParser::IdentifierNode*>(on->arguments[i]);
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ret=codegen.get_name_map_pos(id->name);
|
|
|
|
} else {
|
|
|
|
ret = _parse_expression(codegen,on->arguments[i],slevel);
|
|
if (ret<0)
|
|
return ret;
|
|
if (ret&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
|
|
slevel++;
|
|
codegen.alloc_stack(slevel);
|
|
}
|
|
}
|
|
arguments.push_back(ret);
|
|
|
|
}
|
|
|
|
codegen.opcodes.push_back(p_root?GDFunction::OPCODE_CALL:GDFunction::OPCODE_CALL_RETURN); // perform operator
|
|
codegen.opcodes.push_back(on->arguments.size()-2);
|
|
codegen.alloc_call(on->arguments.size()-2);
|
|
for(int i=0;i<arguments.size();i++)
|
|
codegen.opcodes.push_back(arguments[i]);
|
|
}
|
|
} break;
|
|
case GDParser::OperatorNode::OP_YIELD: {
|
|
|
|
|
|
ERR_FAIL_COND_V(on->arguments.size() && on->arguments.size()!=2,-1);
|
|
|
|
Vector<int> arguments;
|
|
int slevel = p_stack_level;
|
|
for(int i=0;i<on->arguments.size();i++) {
|
|
|
|
int ret = _parse_expression(codegen,on->arguments[i],slevel);
|
|
if (ret<0)
|
|
return ret;
|
|
if (ret&(GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS)) {
|
|
slevel++;
|
|
codegen.alloc_stack(slevel);
|
|
}
|
|
arguments.push_back(ret);
|
|
}
|
|
|
|
//push call bytecode
|
|
codegen.opcodes.push_back(arguments.size()==0?GDFunction::OPCODE_YIELD:GDFunction::OPCODE_YIELD_SIGNAL); // basic type constructor
|
|
for(int i=0;i<arguments.size();i++)
|
|
codegen.opcodes.push_back(arguments[i]); //arguments
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_YIELD_RESUME);
|
|
//next will be where to place the result :)
|
|
|
|
} break;
|
|
|
|
//indexing operator
|
|
case GDParser::OperatorNode::OP_INDEX:
|
|
case GDParser::OperatorNode::OP_INDEX_NAMED: {
|
|
|
|
ERR_FAIL_COND_V(on->arguments.size()!=2,-1);
|
|
|
|
int slevel = p_stack_level;
|
|
bool named=(on->op==GDParser::OperatorNode::OP_INDEX_NAMED);
|
|
|
|
int from = _parse_expression(codegen,on->arguments[0],slevel);
|
|
if (from<0)
|
|
return from;
|
|
|
|
int index;
|
|
if (named) {
|
|
if (on->arguments[0]->type==GDParser::Node::TYPE_SELF && codegen.script && codegen.function_node && !codegen.function_node->_static) {
|
|
|
|
GDParser::IdentifierNode* identifier = static_cast<GDParser::IdentifierNode*>(on->arguments[1]);
|
|
const Map<StringName,GDScript::MemberInfo>::Element *MI = codegen.script->member_indices.find(identifier->name);
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
if (MI && MI->get().getter==codegen.function_node->name) {
|
|
String n = static_cast<GDParser::IdentifierNode*>(on->arguments[1])->name;
|
|
_set_error("Must use '"+n+"' instead of 'self."+n+"' in getter.",on);
|
|
return -1;
|
|
}
|
|
#endif
|
|
|
|
if (MI && MI->get().getter=="") {
|
|
// Faster than indexing self (as if no self. had been used)
|
|
return (MI->get().index)|(GDFunction::ADDR_TYPE_MEMBER<<GDFunction::ADDR_BITS);
|
|
}
|
|
}
|
|
|
|
index=codegen.get_name_map_pos(static_cast<GDParser::IdentifierNode*>(on->arguments[1])->name);
|
|
|
|
} else {
|
|
|
|
if (on->arguments[1]->type==GDParser::Node::TYPE_CONSTANT && static_cast<const GDParser::ConstantNode*>(on->arguments[1])->value.get_type()==Variant::STRING) {
|
|
//also, somehow, named (speed up anyway)
|
|
StringName name = static_cast<const GDParser::ConstantNode*>(on->arguments[1])->value;
|
|
index=codegen.get_name_map_pos(name);
|
|
named=true;
|
|
|
|
} else {
|
|
//regular indexing
|
|
if (from&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
|
|
slevel++;
|
|
codegen.alloc_stack(slevel);
|
|
}
|
|
|
|
index = _parse_expression(codegen,on->arguments[1],slevel);
|
|
if (index<0)
|
|
return index;
|
|
}
|
|
}
|
|
|
|
codegen.opcodes.push_back(named?GDFunction::OPCODE_GET_NAMED:GDFunction::OPCODE_GET); // perform operator
|
|
codegen.opcodes.push_back(from); // argument 1
|
|
codegen.opcodes.push_back(index); // argument 2 (unary only takes one parameter)
|
|
|
|
} break;
|
|
case GDParser::OperatorNode::OP_AND: {
|
|
|
|
// AND operator with early out on failure
|
|
|
|
int res = _parse_expression(codegen,on->arguments[0],p_stack_level);
|
|
if (res<0)
|
|
return res;
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP_IF_NOT);
|
|
codegen.opcodes.push_back(res);
|
|
int jump_fail_pos=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(0);
|
|
|
|
res = _parse_expression(codegen,on->arguments[1],p_stack_level);
|
|
if (res<0)
|
|
return res;
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP_IF_NOT);
|
|
codegen.opcodes.push_back(res);
|
|
int jump_fail_pos2=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(0);
|
|
|
|
codegen.alloc_stack(p_stack_level); //it will be used..
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ASSIGN_TRUE);
|
|
codegen.opcodes.push_back(p_stack_level|GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP);
|
|
codegen.opcodes.push_back(codegen.opcodes.size()+3);
|
|
codegen.opcodes[jump_fail_pos]=codegen.opcodes.size();
|
|
codegen.opcodes[jump_fail_pos2]=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ASSIGN_FALSE);
|
|
codegen.opcodes.push_back(p_stack_level|GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
|
|
return p_stack_level|GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS;
|
|
|
|
} break;
|
|
case GDParser::OperatorNode::OP_OR: {
|
|
|
|
// OR operator with early out on success
|
|
|
|
int res = _parse_expression(codegen,on->arguments[0],p_stack_level);
|
|
if (res<0)
|
|
return res;
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP_IF);
|
|
codegen.opcodes.push_back(res);
|
|
int jump_success_pos=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(0);
|
|
|
|
res = _parse_expression(codegen,on->arguments[1],p_stack_level);
|
|
if (res<0)
|
|
return res;
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP_IF);
|
|
codegen.opcodes.push_back(res);
|
|
int jump_success_pos2=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(0);
|
|
|
|
codegen.alloc_stack(p_stack_level); //it will be used..
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ASSIGN_FALSE);
|
|
codegen.opcodes.push_back(p_stack_level|GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP);
|
|
codegen.opcodes.push_back(codegen.opcodes.size()+3);
|
|
codegen.opcodes[jump_success_pos]=codegen.opcodes.size();
|
|
codegen.opcodes[jump_success_pos2]=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ASSIGN_TRUE);
|
|
codegen.opcodes.push_back(p_stack_level|GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
|
|
return p_stack_level|GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS;
|
|
|
|
} break;
|
|
// ternary operators
|
|
case GDParser::OperatorNode::OP_TERNARY_IF: {
|
|
|
|
// x IF a ELSE y operator with early out on failure
|
|
|
|
int res = _parse_expression(codegen,on->arguments[0],p_stack_level);
|
|
if (res<0)
|
|
return res;
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP_IF_NOT);
|
|
codegen.opcodes.push_back(res);
|
|
int jump_fail_pos=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(0);
|
|
|
|
|
|
res = _parse_expression(codegen,on->arguments[1],p_stack_level);
|
|
if (res<0)
|
|
return res;
|
|
|
|
codegen.alloc_stack(p_stack_level); //it will be used..
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ASSIGN);
|
|
codegen.opcodes.push_back(p_stack_level|GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
|
|
codegen.opcodes.push_back(res);
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP);
|
|
int jump_past_pos=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(0);
|
|
|
|
codegen.opcodes[jump_fail_pos]=codegen.opcodes.size();
|
|
res = _parse_expression(codegen,on->arguments[2],p_stack_level);
|
|
if (res<0)
|
|
return res;
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ASSIGN);
|
|
codegen.opcodes.push_back(p_stack_level|GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
|
|
codegen.opcodes.push_back(res);
|
|
|
|
codegen.opcodes[jump_past_pos]=codegen.opcodes.size();
|
|
|
|
return p_stack_level|GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS;
|
|
|
|
} break;
|
|
//unary operators
|
|
case GDParser::OperatorNode::OP_NEG: { if (!_create_unary_operator(codegen,on,Variant::OP_NEGATE,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_NOT: { if (!_create_unary_operator(codegen,on,Variant::OP_NOT,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_BIT_INVERT: { if (!_create_unary_operator(codegen,on,Variant::OP_BIT_NEGATE,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_PREINC: { } break; //?
|
|
case GDParser::OperatorNode::OP_PREDEC: { } break;
|
|
case GDParser::OperatorNode::OP_INC: { } break;
|
|
case GDParser::OperatorNode::OP_DEC: { } break;
|
|
//binary operators (in precedence order)
|
|
case GDParser::OperatorNode::OP_IN: { if (!_create_binary_operator(codegen,on,Variant::OP_IN,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_EQUAL: { if (!_create_binary_operator(codegen,on,Variant::OP_EQUAL,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_NOT_EQUAL: { if (!_create_binary_operator(codegen,on,Variant::OP_NOT_EQUAL,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_LESS: { if (!_create_binary_operator(codegen,on,Variant::OP_LESS,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_LESS_EQUAL: { if (!_create_binary_operator(codegen,on,Variant::OP_LESS_EQUAL,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_GREATER: { if (!_create_binary_operator(codegen,on,Variant::OP_GREATER,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_GREATER_EQUAL: { if (!_create_binary_operator(codegen,on,Variant::OP_GREATER_EQUAL,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_ADD: { if (!_create_binary_operator(codegen,on,Variant::OP_ADD,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_SUB: { if (!_create_binary_operator(codegen,on,Variant::OP_SUBSTRACT,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_MUL: { if (!_create_binary_operator(codegen,on,Variant::OP_MULTIPLY,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_DIV: { if (!_create_binary_operator(codegen,on,Variant::OP_DIVIDE,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_MOD: { if (!_create_binary_operator(codegen,on,Variant::OP_MODULE,p_stack_level)) return -1;} break;
|
|
//case GDParser::OperatorNode::OP_SHIFT_LEFT: { if (!_create_binary_operator(codegen,on,Variant::OP_SHIFT_LEFT,p_stack_level)) return -1;} break;
|
|
//case GDParser::OperatorNode::OP_SHIFT_RIGHT: { if (!_create_binary_operator(codegen,on,Variant::OP_SHIFT_RIGHT,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_BIT_AND: { if (!_create_binary_operator(codegen,on,Variant::OP_BIT_AND,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_BIT_OR: { if (!_create_binary_operator(codegen,on,Variant::OP_BIT_OR,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_BIT_XOR: { if (!_create_binary_operator(codegen,on,Variant::OP_BIT_XOR,p_stack_level)) return -1;} break;
|
|
//shift
|
|
case GDParser::OperatorNode::OP_SHIFT_LEFT: { if (!_create_binary_operator(codegen,on,Variant::OP_SHIFT_LEFT,p_stack_level)) return -1;} break;
|
|
case GDParser::OperatorNode::OP_SHIFT_RIGHT: { if (!_create_binary_operator(codegen,on,Variant::OP_SHIFT_RIGHT,p_stack_level)) return -1;} break;
|
|
//assignment operators
|
|
case GDParser::OperatorNode::OP_ASSIGN_ADD:
|
|
case GDParser::OperatorNode::OP_ASSIGN_SUB:
|
|
case GDParser::OperatorNode::OP_ASSIGN_MUL:
|
|
case GDParser::OperatorNode::OP_ASSIGN_DIV:
|
|
case GDParser::OperatorNode::OP_ASSIGN_MOD:
|
|
case GDParser::OperatorNode::OP_ASSIGN_SHIFT_LEFT:
|
|
case GDParser::OperatorNode::OP_ASSIGN_SHIFT_RIGHT:
|
|
case GDParser::OperatorNode::OP_ASSIGN_BIT_AND:
|
|
case GDParser::OperatorNode::OP_ASSIGN_BIT_OR:
|
|
case GDParser::OperatorNode::OP_ASSIGN_BIT_XOR:
|
|
case GDParser::OperatorNode::OP_INIT_ASSIGN:
|
|
case GDParser::OperatorNode::OP_ASSIGN: {
|
|
|
|
ERR_FAIL_COND_V(on->arguments.size()!=2,-1);
|
|
|
|
|
|
if (on->arguments[0]->type==GDParser::Node::TYPE_OPERATOR && (static_cast<GDParser::OperatorNode*>(on->arguments[0])->op==GDParser::OperatorNode::OP_INDEX || static_cast<GDParser::OperatorNode*>(on->arguments[0])->op==GDParser::OperatorNode::OP_INDEX_NAMED)) {
|
|
//SET (chained) MODE!!
|
|
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
if (static_cast<GDParser::OperatorNode*>(on->arguments[0])->op==GDParser::OperatorNode::OP_INDEX_NAMED) {
|
|
const GDParser::OperatorNode* inon = static_cast<GDParser::OperatorNode*>(on->arguments[0]);
|
|
|
|
|
|
if (inon->arguments[0]->type==GDParser::Node::TYPE_SELF && codegen.script && codegen.function_node && !codegen.function_node->_static) {
|
|
|
|
const Map<StringName,GDScript::MemberInfo>::Element *MI = codegen.script->member_indices.find(static_cast<GDParser::IdentifierNode*>(inon->arguments[1])->name);
|
|
if (MI && MI->get().setter==codegen.function_node->name) {
|
|
String n = static_cast<GDParser::IdentifierNode*>(inon->arguments[1])->name;
|
|
_set_error("Must use '"+n+"' instead of 'self."+n+"' in setter.",inon);
|
|
return -1;
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
|
|
int slevel=p_stack_level;
|
|
|
|
GDParser::OperatorNode* op = static_cast<GDParser::OperatorNode*>(on->arguments[0]);
|
|
|
|
/* Find chain of sets */
|
|
|
|
List<GDParser::OperatorNode*> chain;
|
|
|
|
{
|
|
//create get/set chain
|
|
GDParser::OperatorNode* n=op;
|
|
while(true) {
|
|
|
|
chain.push_back(n);
|
|
if (n->arguments[0]->type!=GDParser::Node::TYPE_OPERATOR)
|
|
break;
|
|
n = static_cast<GDParser::OperatorNode*>(n->arguments[0]);
|
|
if (n->op!=GDParser::OperatorNode::OP_INDEX && n->op!=GDParser::OperatorNode::OP_INDEX_NAMED)
|
|
break;
|
|
}
|
|
}
|
|
|
|
/* Chain of gets */
|
|
|
|
//get at (potential) root stack pos, so it can be returned
|
|
int prev_pos = _parse_expression(codegen,chain.back()->get()->arguments[0],slevel);
|
|
if (prev_pos<0)
|
|
return prev_pos;
|
|
int retval=prev_pos;
|
|
|
|
//print_line("retval: "+itos(retval));
|
|
|
|
if (retval&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
|
|
slevel++;
|
|
codegen.alloc_stack(slevel);
|
|
}
|
|
|
|
|
|
Vector<int> setchain;
|
|
|
|
for(List<GDParser::OperatorNode*>::Element *E=chain.back();E;E=E->prev()) {
|
|
|
|
|
|
if (E==chain.front()) //ignore first
|
|
break;
|
|
|
|
bool named = E->get()->op==GDParser::OperatorNode::OP_INDEX_NAMED;
|
|
int key_idx;
|
|
|
|
if (named) {
|
|
|
|
key_idx = codegen.get_name_map_pos(static_cast<const GDParser::IdentifierNode*>(E->get()->arguments[1])->name);
|
|
//printf("named key %x\n",key_idx);
|
|
|
|
} else {
|
|
|
|
if (prev_pos&(GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS)) {
|
|
slevel++;
|
|
codegen.alloc_stack(slevel);
|
|
}
|
|
|
|
GDParser::Node *key = E->get()->arguments[1];
|
|
key_idx = _parse_expression(codegen,key,slevel);
|
|
//printf("expr key %x\n",key_idx);
|
|
|
|
|
|
//stack was raised here if retval was stack but..
|
|
|
|
}
|
|
|
|
if (key_idx<0)
|
|
return key_idx;
|
|
|
|
codegen.opcodes.push_back(named ? GDFunction::OPCODE_GET_NAMED : GDFunction::OPCODE_GET);
|
|
codegen.opcodes.push_back(prev_pos);
|
|
codegen.opcodes.push_back(key_idx);
|
|
slevel++;
|
|
codegen.alloc_stack(slevel);
|
|
int dst_pos = (GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS)|slevel;
|
|
|
|
codegen.opcodes.push_back(dst_pos);
|
|
|
|
//add in reverse order, since it will be reverted
|
|
setchain.push_back(dst_pos);
|
|
setchain.push_back(key_idx);
|
|
setchain.push_back(prev_pos);
|
|
setchain.push_back(named ? GDFunction::OPCODE_SET_NAMED : GDFunction::OPCODE_SET);
|
|
|
|
prev_pos=dst_pos;
|
|
|
|
}
|
|
|
|
setchain.invert();
|
|
|
|
|
|
int set_index;
|
|
bool named=false;
|
|
|
|
|
|
if (static_cast<const GDParser::OperatorNode*>(op)->op==GDParser::OperatorNode::OP_INDEX_NAMED) {
|
|
|
|
|
|
set_index=codegen.get_name_map_pos(static_cast<const GDParser::IdentifierNode*>(op->arguments[1])->name);
|
|
named=true;
|
|
} else {
|
|
|
|
set_index = _parse_expression(codegen,op->arguments[1],slevel+1);
|
|
named=false;
|
|
}
|
|
|
|
|
|
if (set_index<0)
|
|
return set_index;
|
|
|
|
if (set_index&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
|
|
slevel++;
|
|
codegen.alloc_stack(slevel);
|
|
}
|
|
|
|
|
|
int set_value = _parse_assign_right_expression(codegen,on,slevel+1);
|
|
if (set_value<0)
|
|
return set_value;
|
|
|
|
codegen.opcodes.push_back(named?GDFunction::OPCODE_SET_NAMED:GDFunction::OPCODE_SET);
|
|
codegen.opcodes.push_back(prev_pos);
|
|
codegen.opcodes.push_back(set_index);
|
|
codegen.opcodes.push_back(set_value);
|
|
|
|
for(int i=0;i<setchain.size();i+=4) {
|
|
|
|
|
|
codegen.opcodes.push_back(setchain[i+0]);
|
|
codegen.opcodes.push_back(setchain[i+1]);
|
|
codegen.opcodes.push_back(setchain[i+2]);
|
|
codegen.opcodes.push_back(setchain[i+3]);
|
|
}
|
|
|
|
return retval;
|
|
|
|
|
|
} else {
|
|
//ASSIGNMENT MODE!!
|
|
|
|
int slevel = p_stack_level;
|
|
|
|
int dst_address_a = _parse_expression(codegen,on->arguments[0],slevel,false,on->op==GDParser::OperatorNode::OP_INIT_ASSIGN);
|
|
if (dst_address_a<0)
|
|
return -1;
|
|
|
|
if (dst_address_a&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS) {
|
|
slevel++;
|
|
codegen.alloc_stack(slevel);
|
|
}
|
|
|
|
int src_address_b = _parse_assign_right_expression(codegen,on,slevel);
|
|
if (src_address_b<0)
|
|
return -1;
|
|
|
|
|
|
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ASSIGN); // perform operator
|
|
codegen.opcodes.push_back(dst_address_a); // argument 1
|
|
codegen.opcodes.push_back(src_address_b); // argument 2 (unary only takes one parameter)
|
|
return dst_address_a; //if anything, returns wathever was assigned or correct stack position
|
|
|
|
}
|
|
|
|
|
|
} break;
|
|
case GDParser::OperatorNode::OP_EXTENDS: {
|
|
|
|
ERR_FAIL_COND_V(on->arguments.size()!=2,false);
|
|
|
|
|
|
int slevel = p_stack_level;
|
|
|
|
int src_address_a = _parse_expression(codegen,on->arguments[0],slevel);
|
|
if (src_address_a<0)
|
|
return -1;
|
|
|
|
if (src_address_a&GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS)
|
|
slevel++; //uses stack for return, increase stack
|
|
|
|
int src_address_b = _parse_expression(codegen,on->arguments[1],slevel);
|
|
if (src_address_b<0)
|
|
return -1;
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_EXTENDS_TEST); // perform operator
|
|
codegen.opcodes.push_back(src_address_a); // argument 1
|
|
codegen.opcodes.push_back(src_address_b); // argument 2 (unary only takes one parameter)
|
|
|
|
} break;
|
|
default: {
|
|
|
|
|
|
ERR_EXPLAIN("Bug in bytecode compiler, unexpected operator #"+itos(on->op)+" in parse tree while parsing expression.");
|
|
ERR_FAIL_V(0); //unreachable code
|
|
|
|
} break;
|
|
}
|
|
|
|
int dst_addr=(p_stack_level)|(GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
|
|
codegen.opcodes.push_back(dst_addr); // append the stack level as destination address of the opcode
|
|
codegen.alloc_stack(p_stack_level);
|
|
return dst_addr;
|
|
} break;
|
|
//TYPE_TYPE,
|
|
default: {
|
|
|
|
ERR_EXPLAIN("Bug in bytecode compiler, unexpected node in parse tree while parsing expression.");
|
|
ERR_FAIL_V(-1); //unreachable code
|
|
} break;
|
|
|
|
|
|
}
|
|
|
|
ERR_FAIL_V(-1); //unreachable code
|
|
}
|
|
|
|
|
|
Error GDCompiler::_parse_block(CodeGen& codegen,const GDParser::BlockNode *p_block,int p_stack_level,int p_break_addr,int p_continue_addr) {
|
|
|
|
codegen.push_stack_identifiers();
|
|
int new_identifiers=0;
|
|
codegen.current_line=p_block->line;
|
|
|
|
for(int i=0;i<p_block->statements.size();i++) {
|
|
|
|
const GDParser::Node *s = p_block->statements[i];
|
|
|
|
|
|
switch(s->type) {
|
|
case GDParser::Node::TYPE_NEWLINE: {
|
|
#ifdef DEBUG_ENABLED
|
|
const GDParser::NewLineNode *nl = static_cast<const GDParser::NewLineNode*>(s);
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_LINE);
|
|
codegen.opcodes.push_back(nl->line);
|
|
codegen.current_line=nl->line;
|
|
#endif
|
|
} break;
|
|
case GDParser::Node::TYPE_CONTROL_FLOW: {
|
|
// try subblocks
|
|
|
|
const GDParser::ControlFlowNode *cf = static_cast<const GDParser::ControlFlowNode*>(s);
|
|
|
|
switch(cf->cf_type) {
|
|
|
|
|
|
case GDParser::ControlFlowNode::CF_IF: {
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_LINE);
|
|
codegen.opcodes.push_back(cf->line);
|
|
codegen.current_line=cf->line;
|
|
#endif
|
|
int ret = _parse_expression(codegen,cf->arguments[0],p_stack_level,false);
|
|
if (ret<0)
|
|
return ERR_PARSE_ERROR;
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP_IF_NOT);
|
|
codegen.opcodes.push_back(ret);
|
|
int else_addr=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(0); //temporary
|
|
|
|
Error err = _parse_block(codegen,cf->body,p_stack_level,p_break_addr,p_continue_addr);
|
|
if (err)
|
|
return err;
|
|
|
|
if (cf->body_else) {
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP);
|
|
int end_addr=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(0);
|
|
codegen.opcodes[else_addr]=codegen.opcodes.size();
|
|
|
|
Error err = _parse_block(codegen,cf->body_else,p_stack_level,p_break_addr,p_continue_addr);
|
|
if (err)
|
|
return err;
|
|
|
|
codegen.opcodes[end_addr]=codegen.opcodes.size();
|
|
} else {
|
|
//end without else
|
|
codegen.opcodes[else_addr]=codegen.opcodes.size();
|
|
|
|
}
|
|
|
|
} break;
|
|
case GDParser::ControlFlowNode::CF_FOR: {
|
|
|
|
|
|
|
|
int slevel=p_stack_level;
|
|
int iter_stack_pos=slevel;
|
|
int iterator_pos = (slevel++)|(GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
|
|
int counter_pos = (slevel++)|(GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
|
|
int container_pos = (slevel++)|(GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS);
|
|
codegen.alloc_stack(slevel);
|
|
|
|
codegen.push_stack_identifiers();
|
|
codegen.add_stack_identifier(static_cast<const GDParser::IdentifierNode*>(cf->arguments[0])->name,iter_stack_pos);
|
|
|
|
int ret = _parse_expression(codegen,cf->arguments[1],slevel,false);
|
|
if (ret<0)
|
|
return ERR_COMPILATION_FAILED;
|
|
|
|
//assign container
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ASSIGN);
|
|
codegen.opcodes.push_back(container_pos);
|
|
codegen.opcodes.push_back(ret);
|
|
|
|
//begin loop
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ITERATE_BEGIN);
|
|
codegen.opcodes.push_back(counter_pos);
|
|
codegen.opcodes.push_back(container_pos);
|
|
codegen.opcodes.push_back(codegen.opcodes.size()+4);
|
|
codegen.opcodes.push_back(iterator_pos);
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP); //skip code for next
|
|
codegen.opcodes.push_back(codegen.opcodes.size()+8);
|
|
//break loop
|
|
int break_pos=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP); //skip code for next
|
|
codegen.opcodes.push_back(0); //skip code for next
|
|
//next loop
|
|
int continue_pos=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ITERATE);
|
|
codegen.opcodes.push_back(counter_pos);
|
|
codegen.opcodes.push_back(container_pos);
|
|
codegen.opcodes.push_back(break_pos);
|
|
codegen.opcodes.push_back(iterator_pos);
|
|
|
|
|
|
Error err = _parse_block(codegen,cf->body,slevel,break_pos,continue_pos);
|
|
if (err)
|
|
return err;
|
|
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP);
|
|
codegen.opcodes.push_back(continue_pos);
|
|
codegen.opcodes[break_pos+1]=codegen.opcodes.size();
|
|
|
|
|
|
codegen.pop_stack_identifiers();
|
|
|
|
} break;
|
|
case GDParser::ControlFlowNode::CF_WHILE: {
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP);
|
|
codegen.opcodes.push_back(codegen.opcodes.size()+3);
|
|
int break_addr=codegen.opcodes.size();
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP);
|
|
codegen.opcodes.push_back(0);
|
|
int continue_addr=codegen.opcodes.size();
|
|
|
|
int ret = _parse_expression(codegen,cf->arguments[0],p_stack_level,false);
|
|
if (ret<0)
|
|
return ERR_PARSE_ERROR;
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP_IF_NOT);
|
|
codegen.opcodes.push_back(ret);
|
|
codegen.opcodes.push_back(break_addr);
|
|
Error err = _parse_block(codegen,cf->body,p_stack_level,break_addr,continue_addr);
|
|
if (err)
|
|
return err;
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP);
|
|
codegen.opcodes.push_back(continue_addr);
|
|
|
|
codegen.opcodes[break_addr+1]=codegen.opcodes.size();
|
|
|
|
} break;
|
|
case GDParser::ControlFlowNode::CF_SWITCH: {
|
|
|
|
} break;
|
|
case GDParser::ControlFlowNode::CF_BREAK: {
|
|
|
|
if (p_break_addr<0) {
|
|
|
|
_set_error("'break'' not within loop",cf);
|
|
return ERR_COMPILATION_FAILED;
|
|
}
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP);
|
|
codegen.opcodes.push_back(p_break_addr);
|
|
|
|
} break;
|
|
case GDParser::ControlFlowNode::CF_CONTINUE: {
|
|
|
|
if (p_continue_addr<0) {
|
|
|
|
_set_error("'continue' not within loop",cf);
|
|
return ERR_COMPILATION_FAILED;
|
|
}
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP);
|
|
codegen.opcodes.push_back(p_continue_addr);
|
|
|
|
} break;
|
|
case GDParser::ControlFlowNode::CF_RETURN: {
|
|
|
|
int ret;
|
|
|
|
if (cf->arguments.size()) {
|
|
|
|
ret = _parse_expression(codegen,cf->arguments[0],p_stack_level,false);
|
|
if (ret<0)
|
|
return ERR_PARSE_ERROR;
|
|
|
|
} else {
|
|
|
|
ret=GDFunction::ADDR_TYPE_NIL << GDFunction::ADDR_BITS;
|
|
}
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_RETURN);
|
|
codegen.opcodes.push_back(ret);
|
|
|
|
} break;
|
|
|
|
}
|
|
} break;
|
|
case GDParser::Node::TYPE_ASSERT: {
|
|
// try subblocks
|
|
|
|
const GDParser::AssertNode *as = static_cast<const GDParser::AssertNode*>(s);
|
|
|
|
int ret = _parse_expression(codegen,as->condition,p_stack_level,false);
|
|
if (ret<0)
|
|
return ERR_PARSE_ERROR;
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_ASSERT);
|
|
codegen.opcodes.push_back(ret);
|
|
} break;
|
|
case GDParser::Node::TYPE_BREAKPOINT: {
|
|
#ifdef DEBUG_ENABLED
|
|
// try subblocks
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_BREAKPOINT);
|
|
#endif
|
|
} break;
|
|
case GDParser::Node::TYPE_LOCAL_VAR: {
|
|
|
|
|
|
const GDParser::LocalVarNode *lv = static_cast<const GDParser::LocalVarNode*>(s);
|
|
|
|
codegen.add_stack_identifier(lv->name,p_stack_level++);
|
|
codegen.alloc_stack(p_stack_level);
|
|
new_identifiers++;
|
|
|
|
} break;
|
|
default: {
|
|
//expression
|
|
int ret = _parse_expression(codegen,s,p_stack_level,true);
|
|
if (ret<0)
|
|
return ERR_PARSE_ERROR;
|
|
} break;
|
|
|
|
}
|
|
|
|
}
|
|
codegen.pop_stack_identifiers();
|
|
return OK;
|
|
}
|
|
|
|
|
|
Error GDCompiler::_parse_function(GDScript *p_script,const GDParser::ClassNode *p_class,const GDParser::FunctionNode *p_func,bool p_for_ready) {
|
|
|
|
Vector<int> bytecode;
|
|
CodeGen codegen;
|
|
|
|
codegen.class_node=p_class;
|
|
codegen.script=p_script;
|
|
codegen.function_node=p_func;
|
|
codegen.stack_max=0;
|
|
codegen.current_line=0;
|
|
codegen.call_max=0;
|
|
codegen.debug_stack=ScriptDebugger::get_singleton()!=NULL;
|
|
Vector<StringName> argnames;
|
|
|
|
int stack_level=0;
|
|
|
|
if (p_func) {
|
|
for(int i=0;i<p_func->arguments.size();i++) {
|
|
codegen.add_stack_identifier(p_func->arguments[i],i);
|
|
#ifdef TOOLS_ENABLED
|
|
argnames.push_back(p_func->arguments[i]);
|
|
#endif
|
|
}
|
|
stack_level=p_func->arguments.size();
|
|
}
|
|
|
|
codegen.alloc_stack(stack_level);
|
|
|
|
/* Parse initializer -if applies- */
|
|
|
|
bool is_initializer=!p_for_ready && !p_func;
|
|
|
|
if (is_initializer || (p_func && String(p_func->name)=="_init")) {
|
|
//parse initializer for class members
|
|
if (!p_func && p_class->extends_used && p_script->native.is_null()){
|
|
|
|
//call implicit parent constructor
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_CALL_SELF_BASE);
|
|
codegen.opcodes.push_back(codegen.get_name_map_pos("_init"));
|
|
codegen.opcodes.push_back(0);
|
|
codegen.opcodes.push_back((GDFunction::ADDR_TYPE_STACK<<GDFunction::ADDR_BITS)|0);
|
|
|
|
}
|
|
Error err = _parse_block(codegen,p_class->initializer,stack_level);
|
|
if (err)
|
|
return err;
|
|
is_initializer=true;
|
|
|
|
}
|
|
|
|
if (p_for_ready || (p_func && String(p_func->name)=="_ready")) {
|
|
//parse initializer for class members
|
|
if (p_class->ready->statements.size()) {
|
|
Error err = _parse_block(codegen,p_class->ready,stack_level);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
}
|
|
|
|
|
|
/* Parse default argument code -if applies- */
|
|
|
|
Vector<int> defarg_addr;
|
|
StringName func_name;
|
|
|
|
if (p_func) {
|
|
|
|
if (p_func->default_values.size()) {
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_JUMP_TO_DEF_ARGUMENT);
|
|
defarg_addr.push_back(codegen.opcodes.size());
|
|
for(int i=0;i<p_func->default_values.size();i++) {
|
|
|
|
_parse_expression(codegen,p_func->default_values[i],stack_level,true);
|
|
defarg_addr.push_back(codegen.opcodes.size());
|
|
}
|
|
|
|
|
|
defarg_addr.invert();
|
|
}
|
|
|
|
|
|
|
|
Error err = _parse_block(codegen,p_func->body,stack_level);
|
|
if (err)
|
|
return err;
|
|
|
|
func_name=p_func->name;
|
|
} else {
|
|
if (p_for_ready)
|
|
func_name="_ready";
|
|
else
|
|
func_name="_init";
|
|
}
|
|
|
|
codegen.opcodes.push_back(GDFunction::OPCODE_END);
|
|
|
|
GDFunction *gdfunc=NULL;
|
|
|
|
//if (String(p_func->name)=="") { //initializer func
|
|
// gdfunc = &p_script->initializer;
|
|
|
|
//} else { //regular func
|
|
p_script->member_functions[func_name]=memnew(GDFunction);
|
|
gdfunc = p_script->member_functions[func_name];
|
|
//}
|
|
|
|
if (p_func)
|
|
gdfunc->_static=p_func->_static;
|
|
|
|
#ifdef TOOLS_ENABLED
|
|
gdfunc->arg_names=argnames;
|
|
#endif
|
|
//constants
|
|
if (codegen.constant_map.size()) {
|
|
gdfunc->_constant_count=codegen.constant_map.size();
|
|
gdfunc->constants.resize(codegen.constant_map.size());
|
|
gdfunc->_constants_ptr=&gdfunc->constants[0];
|
|
const Variant *K=NULL;
|
|
while((K=codegen.constant_map.next(K))) {
|
|
int idx = codegen.constant_map[*K];
|
|
gdfunc->constants[idx]=*K;
|
|
}
|
|
} else {
|
|
|
|
gdfunc->_constants_ptr=NULL;
|
|
gdfunc->_constant_count=0;
|
|
}
|
|
//global names
|
|
if (codegen.name_map.size()) {
|
|
|
|
gdfunc->global_names.resize(codegen.name_map.size());
|
|
gdfunc->_global_names_ptr = &gdfunc->global_names[0];
|
|
for(Map<StringName,int>::Element *E=codegen.name_map.front();E;E=E->next()) {
|
|
|
|
gdfunc->global_names[E->get()]=E->key();
|
|
}
|
|
gdfunc->_global_names_count=gdfunc->global_names.size();
|
|
|
|
} else {
|
|
gdfunc->_global_names_ptr = NULL;
|
|
gdfunc->_global_names_count =0;
|
|
}
|
|
|
|
|
|
if (codegen.opcodes.size()) {
|
|
|
|
gdfunc->code=codegen.opcodes;
|
|
gdfunc->_code_ptr=&gdfunc->code[0];
|
|
gdfunc->_code_size=codegen.opcodes.size();
|
|
|
|
} else {
|
|
|
|
gdfunc->_code_ptr=NULL;
|
|
gdfunc->_code_size=0;
|
|
}
|
|
|
|
if (defarg_addr.size()) {
|
|
|
|
gdfunc->default_arguments=defarg_addr;
|
|
gdfunc->_default_arg_count=defarg_addr.size()-1;
|
|
gdfunc->_default_arg_ptr=&gdfunc->default_arguments[0];
|
|
} else {
|
|
gdfunc->_default_arg_count=0;
|
|
gdfunc->_default_arg_ptr=NULL;
|
|
}
|
|
|
|
gdfunc->_argument_count=p_func ? p_func->arguments.size() : 0;
|
|
gdfunc->_stack_size=codegen.stack_max;
|
|
gdfunc->_call_size=codegen.call_max;
|
|
gdfunc->name=func_name;
|
|
#ifdef DEBUG_ENABLED
|
|
if (ScriptDebugger::get_singleton()){
|
|
String signature;
|
|
//path
|
|
if (p_script->get_path()!=String())
|
|
signature+=p_script->get_path();
|
|
//loc
|
|
if (p_func) {
|
|
signature+="::"+itos(p_func->body->line);
|
|
} else {
|
|
signature+="::0";
|
|
}
|
|
|
|
//funciton and class
|
|
|
|
if (p_class->name) {
|
|
signature+="::"+String(p_class->name)+"."+String(func_name);;
|
|
} else {
|
|
signature+="::"+String(func_name);
|
|
}
|
|
|
|
|
|
|
|
gdfunc->profile.signature=signature;
|
|
}
|
|
#endif
|
|
gdfunc->_script=p_script;
|
|
gdfunc->source=source;
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
|
|
{
|
|
gdfunc->func_cname=(String(source)+" - "+String(func_name)).utf8();
|
|
gdfunc->_func_cname=gdfunc->func_cname.get_data();
|
|
|
|
}
|
|
|
|
#endif
|
|
if (p_func) {
|
|
gdfunc->_initial_line=p_func->line;
|
|
} else {
|
|
gdfunc->_initial_line=0;
|
|
}
|
|
|
|
if (codegen.debug_stack)
|
|
gdfunc->stack_debug=codegen.stack_debug;
|
|
|
|
if (is_initializer)
|
|
p_script->initializer=gdfunc;
|
|
|
|
|
|
return OK;
|
|
}
|
|
|
|
|
|
|
|
Error GDCompiler::_parse_class(GDScript *p_script, GDScript *p_owner, const GDParser::ClassNode *p_class, bool p_keep_state) {
|
|
|
|
Map<StringName,Ref<GDScript> > old_subclasses;
|
|
|
|
if (p_keep_state) {
|
|
old_subclasses=p_script->subclasses;
|
|
}
|
|
|
|
p_script->native=Ref<GDNativeClass>();
|
|
p_script->base=Ref<GDScript>();
|
|
p_script->_base=NULL;
|
|
p_script->members.clear();
|
|
p_script->constants.clear();
|
|
for (Map<StringName,GDFunction*>::Element *E=p_script->member_functions.front();E;E=E->next()) {
|
|
memdelete(E->get());
|
|
}
|
|
p_script->member_functions.clear();
|
|
p_script->member_indices.clear();
|
|
p_script->member_info.clear();
|
|
p_script->_signals.clear();
|
|
p_script->initializer=NULL;
|
|
|
|
p_script->subclasses.clear();
|
|
p_script->_owner=p_owner;
|
|
p_script->tool=p_class->tool;
|
|
p_script->name=p_class->name;
|
|
|
|
|
|
Ref<GDNativeClass> native;
|
|
|
|
if (p_class->extends_used) {
|
|
//do inheritance
|
|
String path = p_class->extends_file;
|
|
|
|
Ref<GDScript> script;
|
|
|
|
|
|
if (path!="") {
|
|
//path (and optionally subclasses)
|
|
|
|
if (path.is_rel_path()) {
|
|
|
|
String base;
|
|
|
|
if (p_owner) {
|
|
GDScript *current_class = p_owner;
|
|
while (current_class != NULL) {
|
|
base=current_class->get_path();
|
|
if (base=="")
|
|
current_class = current_class->_owner;
|
|
else
|
|
break;
|
|
}
|
|
}
|
|
else {
|
|
base = p_script->get_path();
|
|
}
|
|
|
|
if (base=="" || base.is_rel_path()) {
|
|
_set_error("Could not resolve relative path for parent class: "+path,p_class);
|
|
return ERR_FILE_NOT_FOUND;
|
|
}
|
|
path=base.get_base_dir().plus_file(path).simplify_path();
|
|
}
|
|
script = ResourceLoader::load(path);
|
|
if (script.is_null()) {
|
|
_set_error("Could not load base class: "+path,p_class);
|
|
return ERR_FILE_NOT_FOUND;
|
|
}
|
|
if (!script->valid) {
|
|
|
|
_set_error("Script not fully loaded (cyclic preload?): "+path,p_class);
|
|
return ERR_BUSY;
|
|
}
|
|
//print_line("EXTENDS PATH: "+path+" script is "+itos(script.is_valid())+" indices is "+itos(script->member_indices.size())+" valid? "+itos(script->valid));
|
|
|
|
if (p_class->extends_class.size()) {
|
|
|
|
for(int i=0;i<p_class->extends_class.size();i++) {
|
|
|
|
String sub = p_class->extends_class[i];
|
|
if (script->subclasses.has(sub)) {
|
|
|
|
Ref<Script> subclass = script->subclasses[sub]; //avoid reference from dissapearing
|
|
script=subclass;
|
|
} else {
|
|
|
|
_set_error("Could not find subclass: "+sub,p_class);
|
|
return ERR_FILE_NOT_FOUND;
|
|
}
|
|
}
|
|
}
|
|
|
|
} else {
|
|
|
|
ERR_FAIL_COND_V(p_class->extends_class.size()==0,ERR_BUG);
|
|
//look around for the subclasses
|
|
|
|
String base=p_class->extends_class[0];
|
|
GDScript *p = p_owner;
|
|
Ref<GDScript> base_class;
|
|
|
|
while(p) {
|
|
|
|
if (p->subclasses.has(base)) {
|
|
|
|
base_class=p->subclasses[base];
|
|
break;
|
|
}
|
|
p=p->_owner;
|
|
}
|
|
|
|
if (base_class.is_valid()) {
|
|
|
|
for(int i=1;i<p_class->extends_class.size();i++) {
|
|
|
|
String subclass=p_class->extends_class[i];
|
|
|
|
if (base_class->subclasses.has(subclass)) {
|
|
|
|
base_class=base_class->subclasses[subclass];
|
|
} else {
|
|
|
|
_set_error("Could not find subclass: "+subclass,p_class);
|
|
return ERR_FILE_NOT_FOUND;
|
|
}
|
|
}
|
|
|
|
script=base_class;
|
|
|
|
|
|
} else {
|
|
|
|
if (p_class->extends_class.size()>1) {
|
|
|
|
_set_error("Invalid inheritance (unknown class+subclasses)",p_class);
|
|
return ERR_FILE_NOT_FOUND;
|
|
|
|
}
|
|
//if not found, try engine classes
|
|
if (!GDScriptLanguage::get_singleton()->get_global_map().has(base)) {
|
|
|
|
_set_error("Unknown class: '"+base+"'",p_class);
|
|
return ERR_FILE_NOT_FOUND;
|
|
}
|
|
|
|
int base_idx = GDScriptLanguage::get_singleton()->get_global_map()[base];
|
|
native = GDScriptLanguage::get_singleton()->get_global_array()[base_idx];
|
|
if (!native.is_valid()) {
|
|
|
|
_set_error("Global not a class: '"+base+"'",p_class);
|
|
|
|
return ERR_FILE_NOT_FOUND;
|
|
}
|
|
}
|
|
|
|
|
|
}
|
|
|
|
if (script.is_valid()) {
|
|
|
|
p_script->base=script;
|
|
p_script->_base=p_script->base.ptr();
|
|
p_script->member_indices=script->member_indices;
|
|
|
|
} else if (native.is_valid()) {
|
|
|
|
p_script->native=native;
|
|
} else {
|
|
|
|
_set_error("Could not determine inheritance",p_class);
|
|
return ERR_FILE_NOT_FOUND;
|
|
}
|
|
|
|
|
|
}
|
|
|
|
|
|
//print_line("Script: "+p_script->get_path()+" indices: "+itos(p_script->member_indices.size()));
|
|
|
|
|
|
for(int i=0;i<p_class->variables.size();i++) {
|
|
|
|
StringName name = p_class->variables[i].identifier;
|
|
if (p_script->member_indices.has(name)) {
|
|
_set_error("Member '"+name+"' already exists (in current or parent class)",p_class);
|
|
return ERR_ALREADY_EXISTS;
|
|
}
|
|
|
|
if (p_class->variables[i]._export.type!=Variant::NIL) {
|
|
|
|
p_script->member_info[name]=p_class->variables[i]._export;
|
|
#ifdef TOOLS_ENABLED
|
|
if (p_class->variables[i].default_value.get_type()!=Variant::NIL) {
|
|
|
|
p_script->member_default_values[name]=p_class->variables[i].default_value;
|
|
}
|
|
#endif
|
|
} else {
|
|
|
|
p_script->member_info[name]=PropertyInfo(Variant::NIL,name,PROPERTY_HINT_NONE,"",PROPERTY_USAGE_SCRIPT_VARIABLE);
|
|
}
|
|
|
|
//int new_idx = p_script->member_indices.size();
|
|
GDScript::MemberInfo minfo;
|
|
minfo.index = p_script->member_indices.size();
|
|
minfo.setter = p_class->variables[i].setter;
|
|
minfo.getter = p_class->variables[i].getter;
|
|
p_script->member_indices[name]=minfo;
|
|
p_script->members.insert(name);
|
|
|
|
}
|
|
|
|
for(int i=0;i<p_class->constant_expressions.size();i++) {
|
|
|
|
StringName name = p_class->constant_expressions[i].identifier;
|
|
ERR_CONTINUE( p_class->constant_expressions[i].expression->type!=GDParser::Node::TYPE_CONSTANT );
|
|
|
|
GDParser::ConstantNode *constant = static_cast<GDParser::ConstantNode*>(p_class->constant_expressions[i].expression);
|
|
|
|
p_script->constants.insert(name,constant->value);
|
|
//p_script->constants[constant->value].make_const();
|
|
}
|
|
|
|
for(int i=0;i<p_class->_signals.size();i++) {
|
|
|
|
StringName name = p_class->_signals[i].name;
|
|
|
|
GDScript *c = p_script;
|
|
|
|
while(c) {
|
|
|
|
if (c->_signals.has(name)) {
|
|
_set_error("Signal '"+name+"' redefined (in current or parent class)",p_class);
|
|
return ERR_ALREADY_EXISTS;
|
|
}
|
|
|
|
if (c->base.is_valid()) {
|
|
c=c->base.ptr();
|
|
} else {
|
|
c=NULL;
|
|
}
|
|
}
|
|
|
|
if (native.is_valid()) {
|
|
if (ObjectTypeDB::has_signal(native->get_name(),name)) {
|
|
_set_error("Signal '"+name+"' redefined (original in native class '"+String(native->get_name())+"')",p_class);
|
|
return ERR_ALREADY_EXISTS;
|
|
}
|
|
}
|
|
|
|
p_script->_signals[name]=p_class->_signals[i].arguments;
|
|
}
|
|
//parse sub-classes
|
|
|
|
for(int i=0;i<p_class->subclasses.size();i++) {
|
|
StringName name = p_class->subclasses[i]->name;
|
|
|
|
Ref<GDScript> subclass;
|
|
|
|
if (old_subclasses.has(name)) {
|
|
subclass=old_subclasses[name];
|
|
} else {
|
|
subclass.instance();
|
|
}
|
|
|
|
Error err = _parse_class(subclass.ptr(),p_script,p_class->subclasses[i],p_keep_state);
|
|
if (err)
|
|
return err;
|
|
|
|
|
|
p_script->constants.insert(name,subclass); //once parsed, goes to the list of constants
|
|
p_script->subclasses.insert(name,subclass);
|
|
|
|
}
|
|
|
|
|
|
//parse methods
|
|
|
|
bool has_initializer=false;
|
|
bool has_ready=false;
|
|
|
|
for(int i=0;i<p_class->functions.size();i++) {
|
|
|
|
if (!has_initializer && p_class->functions[i]->name=="_init")
|
|
has_initializer=true;
|
|
if (!has_ready && p_class->functions[i]->name=="_ready")
|
|
has_ready=true;
|
|
Error err = _parse_function(p_script,p_class,p_class->functions[i]);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
//parse static methods
|
|
|
|
for(int i=0;i<p_class->static_functions.size();i++) {
|
|
|
|
Error err = _parse_function(p_script,p_class,p_class->static_functions[i]);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
|
|
if (!has_initializer) {
|
|
//create a constructor
|
|
Error err = _parse_function(p_script,p_class,NULL);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
if (!has_ready && p_class->ready->statements.size()) {
|
|
//create a constructor
|
|
Error err = _parse_function(p_script,p_class,NULL,true);
|
|
if (err)
|
|
return err;
|
|
}
|
|
|
|
#ifdef DEBUG_ENABLED
|
|
//validate setters/getters if debug is enabled
|
|
for(int i=0;i<p_class->variables.size();i++) {
|
|
|
|
if (p_class->variables[i].setter) {
|
|
const Map<StringName,GDFunction*>::Element *E=p_script->get_member_functions().find(p_class->variables[i].setter);
|
|
if (!E) {
|
|
_set_error("Setter function '"+String(p_class->variables[i].setter)+"' not found in class.",NULL);
|
|
err_line=p_class->variables[i].line;
|
|
err_column=0;
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
if (E->get()->is_static()) {
|
|
|
|
_set_error("Setter function '"+String(p_class->variables[i].setter)+"' is static.",NULL);
|
|
err_line=p_class->variables[i].line;
|
|
err_column=0;
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
}
|
|
if (p_class->variables[i].getter) {
|
|
const Map<StringName,GDFunction*>::Element *E=p_script->get_member_functions().find(p_class->variables[i].getter);
|
|
if (!E) {
|
|
_set_error("Getter function '"+String(p_class->variables[i].getter)+"' not found in class.",NULL);
|
|
err_line=p_class->variables[i].line;
|
|
err_column=0;
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
if (E->get()->is_static()) {
|
|
|
|
_set_error("Getter function '"+String(p_class->variables[i].getter)+"' is static.",NULL);
|
|
err_line=p_class->variables[i].line;
|
|
err_column=0;
|
|
return ERR_PARSE_ERROR;
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
//validate instances if keeping state
|
|
|
|
if (p_keep_state) {
|
|
|
|
print_line("RELOAD KEEP "+p_script->path);
|
|
for (Set<Object*>::Element *E=p_script->instances.front();E;) {
|
|
|
|
Set<Object*>::Element *N = E->next();
|
|
|
|
ScriptInstance *si = E->get()->get_script_instance();
|
|
if (si->is_placeholder()) {
|
|
#ifdef TOOLS_ENABLED
|
|
PlaceHolderScriptInstance *psi = static_cast<PlaceHolderScriptInstance*>(si);
|
|
|
|
if (p_script->is_tool()) {
|
|
//re-create as an instance
|
|
p_script->placeholders.erase(psi); //remove placeholder
|
|
|
|
GDInstance* instance = memnew( GDInstance );
|
|
instance->base_ref=E->get()->cast_to<Reference>();
|
|
instance->members.resize(p_script->member_indices.size());
|
|
instance->script=Ref<GDScript>(p_script);
|
|
instance->owner=E->get();
|
|
|
|
//needed for hot reloading
|
|
for(Map<StringName,GDScript::MemberInfo>::Element *E=p_script->member_indices.front();E;E=E->next()) {
|
|
instance->member_indices_cache[E->key()]=E->get().index;
|
|
}
|
|
instance->owner->set_script_instance(instance);
|
|
|
|
|
|
/* STEP 2, INITIALIZE AND CONSRTUCT */
|
|
|
|
Variant::CallError ce;
|
|
p_script->initializer->call(instance,NULL,0,ce);
|
|
|
|
if (ce.error!=Variant::CallError::CALL_OK) {
|
|
//well, tough luck, not goinna do anything here
|
|
}
|
|
}
|
|
#endif
|
|
} else {
|
|
|
|
GDInstance *gi = static_cast<GDInstance*>(si);
|
|
gi->reload_members();
|
|
}
|
|
|
|
E=N;
|
|
|
|
}
|
|
|
|
|
|
}
|
|
#endif
|
|
|
|
p_script->valid=true;
|
|
return OK;
|
|
}
|
|
|
|
Error GDCompiler::compile(const GDParser *p_parser,GDScript *p_script,bool p_keep_state) {
|
|
|
|
err_line=-1;
|
|
err_column=-1;
|
|
error="";
|
|
parser=p_parser;
|
|
const GDParser::Node* root = parser->get_parse_tree();
|
|
ERR_FAIL_COND_V(root->type!=GDParser::Node::TYPE_CLASS,ERR_INVALID_DATA);
|
|
|
|
source=p_script->get_path();
|
|
|
|
Error err = _parse_class(p_script,NULL,static_cast<const GDParser::ClassNode*>(root),p_keep_state);
|
|
|
|
if (err)
|
|
return err;
|
|
|
|
return OK;
|
|
|
|
}
|
|
|
|
String GDCompiler::get_error() const {
|
|
|
|
return error;
|
|
}
|
|
int GDCompiler::get_error_line() const{
|
|
|
|
return err_line;
|
|
}
|
|
int GDCompiler::get_error_column() const{
|
|
|
|
return err_column;
|
|
}
|
|
|
|
GDCompiler::GDCompiler()
|
|
{
|
|
}
|
|
|
|
|