Fix crash when using arithmetic expressions in pattern matching#3593
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eileencodes merged 1 commit intoruby:mainfrom Jul 16, 2025
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Fix crash when using arithmetic expressions in pattern matching#3593eileencodes merged 1 commit intoruby:mainfrom
eileencodes merged 1 commit intoruby:mainfrom
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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 creates `PM_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.
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Looks like this also fixes #3381 (basically the same issue) |
eileencodes
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@eileencodes Thanks! |
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Fixes https://bugs.ruby-lang.org/issues/21460
When arithmetic expressions like
-1**2are 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_NODEfor 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.