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Fix GDScript parser crash on 'dollar mixed with assignment' expression

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fixes #53696
This commit is contained in:
Pawel Lampe 2021-11-21 21:17:35 +01:00
parent ed02b8af59
commit 1a15a3adf6
3 changed files with 7 additions and 0 deletions
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3
modules/gdscript/gdscript_parser.cpp
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@ -2420,6 +2420,9 @@ GDScriptParser::ExpressionNode *GDScriptParser::parse_assignment(ExpressionNode
push_error("Assignment is not allowed inside an expression."); push_error("Assignment is not allowed inside an expression.");
return parse_expression(false); // Return the following expression. return parse_expression(false); // Return the following expression.
} }
if (p_previous_operand == nullptr) {
return parse_expression(false); // Return the following expression.
}
#ifdef DEBUG_ENABLED #ifdef DEBUG_ENABLED
VariableNode *source_variable = nullptr; VariableNode *source_variable = nullptr;

2
modules/gdscript/tests/scripts/parser/errors/dollar-assignment-bug-53696.gd Normal file
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@ -0,0 +1,2 @@
func test():
$=$

2
modules/gdscript/tests/scripts/parser/errors/dollar-assignment-bug-53696.out Normal file
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@ -0,0 +1,2 @@
GDTEST_PARSER_ERROR
Expect node path as string or identifier after "$".