[DependencyInjection] Use WeakReference to break circular references in the container #48469
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Rebase needed |
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Rebased |
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Rebase needed again :) |
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rebased (failures unrelated) |
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Thank you @nicolas-grekas. |
stof
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Dec 9, 2022
nicolas-grekas
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Mar 14, 2023
…ilder (nicolas-grekas) This PR was merged into the 6.3 branch. Discussion ---------- [DependencyInjection] Use weak references in ContainerBuilder | Q | A | ------------- | --- | Branch? | 6.3 | Bug fix? | no | New feature? | no | Deprecations? | no | Tickets | - | License | MIT | Doc PR | - Same as #48469 for ContainerBuilder. Commits ------- 749d4b9 [DependencyInjection] Use weak references in ContainerBuilder
nicolas-grekas
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May 26, 2023
…ontainer" (nicolas-grekas) This PR was merged into the 6.3 branch. Discussion ---------- [DependencyInjection] Revert "Use weak references in the container" | Q | A | ------------- | --- | Branch? | 6.3 | Bug fix? | yes | New feature? | no | Deprecations? | no | Tickets | Fix #50439 | License | MIT | Doc PR | - This is the second time this issue is reported, let's revert PR #48469 and #49684 before it does more harm :) Commits ------- d6ea474 [DependencyInjection] Revert "Use weak references in the container"
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Jul 19, 2023
…ces multiple times with as files `true` (HypeMC) This PR was merged into the 6.3 branch. Discussion ---------- [DependencyInjection] Fix fetching lazy non-shared services multiple times with as files `true` | Q | A | ------------- | --- | Branch? | 6.3 | Bug fix? | yes | New feature? | no | Deprecations? | no | Tickets | Fix #50975 | License | MIT | Doc PR | - Followup to #50985, fixes case when `as_files` is `true`. This particular problem exists only on v6.3 and was introduced in #48469. Commits ------- cb434a4 [DependencyInjection] Fix fetching lazy non-shared services multiple times with as files true
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While working on #48461, I realized that we could break many circular loops involving the container by using a
WeakReferenceto access it. This happens when we generate closures.Conceptually, we generate this at the moment:
And we'd generate this with this PR:
This should reduce the pressure on the garbage collector.