PHP 8 match() expression is not counted in Generic.Metrics.CyclomaticComplexity #3472
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MarkBaker
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Nov 12, 2021
Calculate CYC for PHP 8 match() expression in Cyclomatic Complexity sniff
MarkBaker
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MarkBaker
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Dec 3, 2021
This is for Issue squizlabs#3472, which identified that match() was not being included in the count, when it should have been (similar to a switch statement). There is no need to add one for the T_MATCH_DEFAULT token, because this is always followed by a T_MATCH_ARROW token, and to do so would be to double-count that entry. Unit tests provided.
gsherwood
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gsherwood
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Dec 6, 2021
This is for Issue #3472, which identified that match() was not being included in the count, when it should have been (similar to a switch statement). There is no need to add one for the T_MATCH_DEFAULT token, because this is always followed by a T_MATCH_ARROW token, and to do so would be to double-count that entry. Unit tests provided.
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PHP8 Introduced
match()as a new expression syntax, similar to aswitchstatement but with a rather different structure, using an arrow (=>) to separate thecasefrom the expression that it would return. This should also be factored into the CYC calculation for theGeneric.Metrics.CyclomaticComplexitysniff.When calculating the CYC, this should be evaluated like a
switchstatement, with eachT_MATCH_ARROWtoken corresponding to acaseand increasing the CYC by one. There is no need to add one for theT_MATCH_DEFAULTtoken, because this is followed by aT_MATCH_ARROWtoken, and to do so would be to double-count that entry.PR to follow.
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