Variable sniffs: minor performance tweak #374
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Rebased without changes. Merging once the build passes. |
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On second thought, I will delay merging this PR until the 3.10.0 release as there is a, albeit small, chance that this change could break external sniffs which extend one of the sniffs involved in this PR (as they would inherit the change, which may not be the desired behaviour for their sniff). |
The `AbstractVariableSniff` by default listens to all `T_VARIABLE`, `T_DOUBLE_QUOTED_STRING` and `T_HEREDOC` tokens. The majority of the sniffs extending the `AbstractVariableSniff`, however, only handle `T_VARIABLE` tokens and in particular, only handle `T_VARIABLE` tokens when in an OO scope and nothing more. This small tweak means these sniffs will no longer "listen" to `T_DOUBLE_QUOTED_STRING` and `T_HEREDOC` tokens, which should make them marginally faster, in particular for code bases containing lots of `T_DOUBLE_QUOTED_STRING` and `T_HEREDOC` tokens. It also means that these sniff will no longer be triggered for `T_VARIABLE` tokens outside of an OO context.
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Description
The
AbstractVariableSniffby default listens to allT_VARIABLE,T_DOUBLE_QUOTED_STRINGandT_HEREDOCtokens.The majority of the sniffs extending the
AbstractVariableSniff, however, only handleT_VARIABLEtokens and in particular, only handleT_VARIABLEtokens when in an OO scope and nothing more.This small tweak means these sniffs will no longer "listen" to
T_DOUBLE_QUOTED_STRINGandT_HEREDOCtokens, which should make them marginally faster, in particular for code bases containing lots ofT_DOUBLE_QUOTED_STRINGandT_HEREDOCtokens.It also means that these sniff will no longer be triggered for
T_VARIABLEtokens outside of an OO context.Suggested changelog entry
Small performance improvement for five sniffs.