fix: A unary-test expression with ? returns true/false #959
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Add a test case to verify an unary-tests expression with the special variable `?` for a parameter with ANY type.
Check if a function argument is an error before invoking the function. Otherwise, the function may handle the argument not as an error but a regular value.
Move the function validation in the interpreter before invoking the function.
saig0
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backport 1.17
backport 1.18
backport 1.16
backport 1.19
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backport 1.16
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tasso94
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Jan 3, 2025
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Description
The engine restricts the usage of
?to an unary-test expression. It is implemented by returning aValFatalErrorwhen accessing?. If the expression is a unary-test, it evaluates the expression again and assigns the input value to?.Previously, the engine invoked a function without checking the arguments before. As a result, a function with an
Anyparameter (e.g.list contains(list, any)) accepted aValError/ValFatalErroras a regular value and didn't forward the error.Fix the issue by adding the validation of the arguments before invoking the function.
Related issues
closes camunda/camunda#26054