[TwigBundle] fix broken FilesystemLoader::exists() with Twig 3 #34878
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nicolas-grekas
approved these changes
Dec 10, 2019
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@dpesch can you please squash your PR? I cannot do it as you did allow pushing on your fork. |
Twig3 FilesystemLoader::findTemplate() should return `string|null` instead of Twig2 `string|null|false`: see <https://github.com/twigphp/Twig/blob/3.x/src/Loader/FilesystemLoader.php#L167> Returning `null` fixes `exists()` of Twig 3 FilesystemLoader without breaking Twig 2 (which expected `null` or `false` for not found templates). Change the test to assert `null` instead of `false`.
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@nicolas-grekas Thank you for your message. Is it better now? And how could/should I make it better? Should Allow edits from maintainers. be turned off? |
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Thanks. It should be turned on actually. |
fabpot
approved these changes
Dec 11, 2019
|
Thank you @dpesch. |
fabpot
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Dec 11, 2019
…ig 3 (dpesch) This PR was merged into the 4.4 branch. Discussion ---------- [TwigBundle] fix broken FilesystemLoader::exists() with Twig 3 | Q | A | ------------- | --- | Branch? | 4.4 | Bug fix? | yes | New feature? | no | Deprecations? | no | Tickets | Fix #34877 | License | MIT | Doc PR | This fix adapts the declaration of Twig 3 `\Twig\Loader\FilesystemLoader::findTemplate()` which expects to return `string|null` and returns `null` instead of `false`. Returning `false` breaks `\Twig\Loader\FilesystemLoader::exists()` which returns `true` if `findTemplate()` does not return `null`. Twig 2 should not be affected by this patch. The `exists()` method expects `null` or `false` for not found templates: <https://github.com/twigphp/Twig/blob/fdb691a424682a524555f73b2c665c06971c4ed5/src/Loader/FilesystemLoader.php#L169> Commits ------- ff1d77e bug #34877 [TwigBundle] fix findTemplate() to return `null`
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This fix adapts the declaration of Twig 3
\Twig\Loader\FilesystemLoader::findTemplate()which expects to returnstring|nulland returnsnullinstead offalse.Returning
falsebreaks\Twig\Loader\FilesystemLoader::exists()which returnstrueiffindTemplate()does not returnnull.Twig 2 should not be affected by this patch. The
exists()method expectsnullorfalsefor not found templates: https://github.com/twigphp/Twig/blob/fdb691a424682a524555f73b2c665c06971c4ed5/src/Loader/FilesystemLoader.php#L169