Fix crash when using arithmetic expressions in pattern matching #3593
+11
−0
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Fixes https://bugs.ruby-lang.org/issues/21460
When arithmetic expressions like
-1**2
are used in pattern matching contexts, Ruby crashes with "Unexpected node type in pattern matching expression: PM_CALL_NODE". This happens because the Prism parser createsPM_CALL_NODE
for arithmetic operations, but Ruby's pattern matching compiler doesn't handle call nodes.This fix adds validation to reject PM_CALL_NODE in pattern contexts with a proper syntax error.