[DependencyInjection] Fix circular reference with Factory + Lazy Iterrator #38980
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src/Symfony/Component/DependencyInjection/Tests/Dumper/PhpDumperTest.php
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nicolas-grekas
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Nov 4, 2020
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Thank you @jderusse. |
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… paths (jderusse) This PR was merged into the 4.4 branch. Discussion ---------- [DependencyInjection] Fix circular detection with multiple paths | Q | A | ------------- | --- | Branch? | 4.4 | Bug fix? | yes | New feature? | no | Deprecations? | no | Tickets | Fix #39056 | License | MIT | Doc PR | - There are currently 2 kind of issues related to the Dependency Injection: 1. performance issue when project contains many loops (#37850) Which has been fixed by #38882 2. Infinity loop in some case (#38970) Which has been fixed by #38980 and #39021 The new issue #39056 has been introduced by #38882 (The performance issue refactor) because in order to optimize loop detection, I take a short cut and choose to not collect ALL the circular loop but only the one that matters I was wrong. All loops matters. This PR fix my previous refacto to collect ALL the paths, with a low CPU footprint Commits ------- 1c3721e Fix circular detection with multiple paths
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Nov 27, 2020
…truct loop (jderusse) This PR was squashed before being merged into the 4.4 branch. Discussion ---------- [DependencyInjection] Fix circular in DI with lazy + byContruct loop | Q | A | ------------- | --- | Branch? | 4.4 | Bug fix? | yes | New feature? | no | Deprecations? | no | Tickets | Fix #39120 | License | MIT | Doc PR | - This fix another issue lazy service. It partially revert #38980 and #39021 Initially, we trusted lazy services to be lazy and not beeing called while building the services graph => bug #38970 when lazy deps is injected in a factory, it may be consumed directly to build the object before the graph is fully built Fixed by #38980 => lazy service are considered as "normal service" => bug #39015 some loop are not resolvable with "normal service", but it shouldn't be an issue when servie proxifyied Fixed by #39021 => lazy service are considered as "normal service" except when proxyfied => bug #39120 some loop are not resolvable with "normal service", but it shouldn't be an issue because the lazy service is injected in the constructor and user Fixed by this PR => that revert to the initial state. lazy service are trusted. But now, The IterratorArgument injected in a factory (single exception) is not more considered as lazy Commits ------- 54af139 [DependencyInjection] Fix circular in DI with lazy + byContruct loop
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The issue, occurs when a
factoryiterates over services (think tagged iterator) that also need thefactory.The PhpDumper is not able to detect the loop because the TaggedService iterator is flaged as "lazy" which is ignored in the loop detection.
symfony/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
Lines 474 to 476 in 2d7e0b0
See test case for a reproduce case.
This PR takes into account lazy services when computing loops.
I'm not sure this is the right thing to do /cc @nicolas-grekas .
A better solution could be to do this ONLY when the service is used as a factory?