Fix ticket 8442: detect unselectable switch cases - #8815
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chrchr-github merged 4 commits intoSep 6, 2026
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| { | ||
| reportError(tok, Severity::style, "unreachableSwitchCase", | ||
| "Switch case '" + caseExpression + | ||
| "' can never be selected because the switch condition has a known value.", |
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Thanks for your contribution. It might be helpful to mention the known value in the error message.
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Updated the message to include the known value. thanks.
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Please add a short note in releasenotes.txt. |
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Added a short note. Thanks! |
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You may add yourself to the AUTHORS file if you'd like. Please add |
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Added myself to AUTHORS file with |
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ValueFlow already knows the switch condition value in this case,
but the case labels were not checked against it.
This change uses that value to report case labels that cannot be
selected when the switch condition has a known integer value.
Added regression tests for enum and integer cases, unknown
switch values, and nested switches.