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GDScript: Do not allow standalone lambdas

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They cannot be accessed in this case, so an error is shown to avoid
misleading the uses, especially in case of named lambdas.
This commit is contained in:
George Marques 2022-05-23 12:25:03 -03:00
parent a76db34592
commit 0a28b4cd94
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GPG Key ID: 046BD46A3201E43D
3 changed files with 9 additions and 0 deletions
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4
modules/gdscript/gdscript_parser.cpp
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@ -1624,6 +1624,10 @@ GDScriptParser::Node *GDScriptParser::parse_statement() {
case Node::AWAIT:
// Fine.
break;
case Node::LAMBDA:
// Standalone lambdas can't be used, so make this an error.
push_error("Standalone lambdas cannot be accessed. Consider assigning it to a variable.", expression);
break;
default:
push_warning(expression, GDScriptWarning::STANDALONE_EXPRESSION);
}

3
modules/gdscript/tests/scripts/parser/errors/lambda_standalone.gd Normal file
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@ -0,0 +1,3 @@
func test():
func standalone():
print("can't be accessed")

2
modules/gdscript/tests/scripts/parser/errors/lambda_standalone.out Normal file
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@ -0,0 +1,2 @@
GDTEST_PARSER_ERROR
Standalone lambdas cannot be accessed. Consider assigning it to a variable.