diff options
Diffstat (limited to 'modules/gdscript/gd_compiler.cpp')
| -rw-r--r-- | modules/gdscript/gd_compiler.cpp | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/modules/gdscript/gd_compiler.cpp b/modules/gdscript/gd_compiler.cpp index ce8b6a6ea4..923f8090f7 100644 --- a/modules/gdscript/gd_compiler.cpp +++ b/modules/gdscript/gd_compiler.cpp @@ -662,6 +662,46 @@ int GDCompiler::_parse_expression(CodeGen& codegen,const GDParser::Node *p_expre 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; |