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Memoize PHP compatibility info
Summary: Ref T7892. Avoid reading the PHP compatibility information for every file being linted. Test Plan: ```name=Before real 1m24.327s user 1m19.571s sys 0m5.239s ``` ```lang=After real 1m12.029s user 1m5.756s sys 0m5.502s ``` Reviewers: epriestley, #blessed_reviewers Reviewed By: epriestley, #blessed_reviewers Subscribers: Korvin, epriestley Maniphest Tasks: T7892 Differential Revision: https://secure.phabricator.com/D12518
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1 changed files with 7 additions and 3 deletions
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@ -500,13 +500,17 @@ final class ArcanistXHPASTLinter extends ArcanistBaseXHPASTLinter {
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}
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private function lintPHPCompatibility(XHPASTNode $root) {
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static $compat_info;
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if (!$this->version) {
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return;
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}
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$target = phutil_get_library_root('phutil').
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'/../resources/php_compat_info.json';
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$compat_info = phutil_json_decode(Filesystem::readFile($target));
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if ($compat_info === null) {
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$target = phutil_get_library_root('phutil').
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'/../resources/php_compat_info.json';
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$compat_info = phutil_json_decode(Filesystem::readFile($target));
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}
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// Create a whitelist for symbols which are being used conditionally.
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$whitelist = array(
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