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Merge pull request #21449 from vnen/gdscript-builtin-is

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Allow `is` operator to test built-in types
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Rémi Verschelde 2018-08-27 17:48:11 +02:00 • committed by GitHub
commit f06b7d40c8
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5 changed files with 75 additions and 3 deletions
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19
modules/gdscript/gdscript_compiler.cpp
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@ -1253,6 +1253,25 @@ int GDScriptCompiler::_parse_expression(CodeGen &codegen, const GDScriptParser::
codegen.opcodes.push_back(src_address_b); // argument 2 (unary only takes one parameter)
} break;
case GDScriptParser::OperatorNode::OP_IS_BUILTIN: {
ERR_FAIL_COND_V(on->arguments.size() != 2, false);
ERR_FAIL_COND_V(on->arguments[1]->type != GDScriptParser::Node::TYPE_TYPE, 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 & GDScriptFunction::ADDR_TYPE_STACK << GDScriptFunction::ADDR_BITS)
slevel++; //uses stack for return, increase stack
const GDScriptParser::TypeNode *tn = static_cast<const GDScriptParser::TypeNode *>(on->arguments[1]);
codegen.opcodes.push_back(GDScriptFunction::OPCODE_IS_BUILTIN); // perform operator
codegen.opcodes.push_back(src_address_a); // argument 1
codegen.opcodes.push_back((int)tn->vtype); // 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.");