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Support any Integer/Boolean/Real value in SelectExpression #77

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benedekh opened this issue Jun 8, 2021 · 2 comments
Open

Support any Integer/Boolean/Real value in SelectExpression #77

benedekh opened this issue Jun 8, 2021 · 2 comments
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enhancement New feature or request

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@benedekh
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benedekh commented Jun 8, 2021

SelectExpression exptects an Expression as operand from which it chooses a value. At the moment IntegerRangeLiteral and ArrayListLiteral expressions are supported. However, it would be useful if we could select any Integer, Boolean, Real, etc. values not only from a range.

/cc @vincemolnar
@benedekh benedekh added the enhancement New feature or request label Jun 8, 2021
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grbeni commented Jun 8, 2021

@vincemolnar and I have consulted about the issue and we have concluded that the transformation of such select expressions to havoc expressions in the XSTS model can lead to non-deterministic behavior in choice actions due to the else branch. This could be addressed by for example introducing if-else actions in the XSTS language in the future.

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grbeni commented Aug 26, 2024

See the introduction of havoc actions in 4a0c205.

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