Improved mutation score #983
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Ocramius
requested changes
Jan 20, 2022
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Some of the remaining mutants can probably be ignored, eg. mutants with |
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TBH, it always depends: I believe most escaped mutated nullability checks are hidden bugs/unused caches, so we'll need to evaluate case-by-case |
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Yes
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Ocramius
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Feb 1, 2022
Fixes vimeo#7478 As discussed in the upstream issue, `trait_exists()` always returns `bool`: while it can return `null` when the arguments passed to it do not match (either no arguments, or 3 or more arguments), we do not support that scenario, as that already doesn't respect the type signature of this function. We cut to the point: always make it `bool`, which is the scenario that works under healthy operational conditions. Ref: Roave/BetterReflection#983 (comment) Ref: https://psalm.dev/r/c41a43805d Ref: vimeo#7478 (comment) Ref: vimeo#7478 (comment) Ref: https://3v4l.org/XpHmh
Ocramius
added a commit
to Ocramius/psalm
that referenced
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Feb 1, 2022
Fixes vimeo#7478 As discussed in the upstream issue, `trait_exists()` always returns `bool`: while it can return `null` when the arguments passed to it do not match (either no arguments, or 3 or more arguments), we do not support that scenario, as that already doesn't respect the type signature of this function. We cut to the point: always make it `bool`, which is the scenario that works under healthy operational conditions. Ref: Roave/BetterReflection#983 (comment) Ref: https://psalm.dev/r/c41a43805d Ref: vimeo#7478 (comment) Ref: vimeo#7478 (comment) Ref: https://3v4l.org/XpHmh
Ocramius
added a commit
to Ocramius/psalm
that referenced
this pull request
Feb 1, 2022
Fixes vimeo#7478 As discussed in the upstream issue, `trait_exists()` always returns `bool`: while it can return `null` when the arguments passed to it do not match (either no arguments, or 3 or more arguments), we do not support that scenario, as that already doesn't respect the type signature of this function. We cut to the point: always make it `bool`, which is the scenario that works under healthy operational conditions. Ref: Roave/BetterReflection#983 (comment) Ref: https://psalm.dev/r/c41a43805d Ref: vimeo#7478 (comment) Ref: vimeo#7478 (comment) Ref: https://3v4l.org/XpHmh
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