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GDScript: Show error on unary operators without argument

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This commit is contained in:
George Marques
2021-09-15 11:08:59 -03:00
parent 5a612d61b9
commit d49046938a
11 changed files with 34 additions and 0 deletions
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12
modules/gdscript/gdscript_parser.cpp
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@@ -2123,22 +2123,34 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_unary_operator(ExpressionN
operation->operation = UnaryOpNode::OP_NEGATIVE;
operation->variant_op = Variant::OP_NEGATE;
operation->operand = parse_precedence(PREC_SIGN, false);
if (operation->operand == nullptr) {
push_error(R"(Expected expression after "-" operator.)");
}
break;
case GDScriptTokenizer::Token::PLUS:
operation->operation = UnaryOpNode::OP_POSITIVE;
operation->variant_op = Variant::OP_POSITIVE;
operation->operand = parse_precedence(PREC_SIGN, false);
if (operation->operand == nullptr) {
push_error(R"(Expected expression after "+" operator.)");
}
break;
case GDScriptTokenizer::Token::TILDE:
operation->operation = UnaryOpNode::OP_COMPLEMENT;
operation->variant_op = Variant::OP_BIT_NEGATE;
operation->operand = parse_precedence(PREC_BIT_NOT, false);
if (operation->operand == nullptr) {
push_error(R"(Expected expression after "~" operator.)");
}
break;
case GDScriptTokenizer::Token::NOT:
case GDScriptTokenizer::Token::BANG:
operation->operation = UnaryOpNode::OP_LOGIC_NOT;
operation->variant_op = Variant::OP_NOT;
operation->operand = parse_precedence(PREC_LOGIC_NOT, false);
if (operation->operand == nullptr) {
push_error(vformat(R"(Expected expression after "%s" operator.)", op_type == GDScriptTokenizer::Token::NOT ? "not" : "!"));
}
break;
default:
return nullptr; // Unreachable.