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Emit PhanUnusedVariable for a reference if there are no uses or redefinitions #2733

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TysonAndre opened this issue May 6, 2019 · 0 comments · Fixed by #2737
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Emit PhanUnusedVariable for a reference if there are no uses or redefinitions #2733

TysonAndre opened this issue May 6, 2019 · 0 comments · Fixed by #2737
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dead code detection Affects --dead-code-detection enhancement This improves the quality of Phan's analysis of a codebase

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@TysonAndre
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e.g.

function test($a) {
    $b = &$a;  // should warn since $b is not read or assigned later
    $a = 2;
    return $a;
}
@TysonAndre TysonAndre added enhancement This improves the quality of Phan's analysis of a codebase dead code detection Affects --dead-code-detection labels May 6, 2019
TysonAndre added a commit to TysonAndre/phan that referenced this issue May 6, 2019
@TysonAndre
Improve unused variable detection for non-regular variables
1991630 
Fixes phan#2733
@TysonAndre TysonAndre mentioned this issue May 6, 2019
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dead code detection Affects --dead-code-detection enhancement This improves the quality of Phan's analysis of a codebase
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Improve unused variable detection for non-regular variables TysonAndre/phan
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@TysonAndre