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Fix inefficient list iteration in Node #88785

Merged
merged 1 commit into from
Feb 25, 2024
Merged

Fix inefficient list iteration in Node #88785

merged 1 commit into from
Feb 25, 2024

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KoBeWi
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@KoBeWi KoBeWi commented Feb 24, 2024

Noticed some random code that iterates a List using indices.

@KoBeWi KoBeWi added this to the 4.3 milestone Feb 24, 2024
@KoBeWi KoBeWi requested a review from a team as a code owner February 24, 2024 22:20
Mickeon
Mickeon approved these changes Feb 25, 2024
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So that's more efficient, huh?

Even if it weren't, this is standard across the codebase.

@KoBeWi
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KoBeWi commented Feb 25, 2024

So that's more efficient, huh?

It's more efficient specifically in List. Accessing a linked list element by index requires iterating all prior elements.

@lawnjelly
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It would be nice to remove the [] operator entirely from list, and fix all the misuse cases. I have a feeling it was discussed long ago, but there was some technical barrier (perhaps in some template requiring certain algorithms to be available).

@akien-mga akien-mga merged commit 81f3d43 into godotengine:master Feb 25, 2024
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Thanks!

@KoBeWi KoBeWi deleted the list_cringe branch February 25, 2024 11:37
@akien-mga akien-mga added the cherrypick:4.2 Considered for cherry-picking into a future 4.2.x release label Mar 9, 2024
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Cherry-picked for 4.2.2.

@akien-mga akien-mga removed the cherrypick:4.2 Considered for cherry-picking into a future 4.2.x release label Mar 9, 2024
@jsjtxietian jsjtxietian mentioned this pull request Mar 27, 2024
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@Chubercik Chubercik Chubercik approved these changes

@Mickeon Mickeon Mickeon approved these changes

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bug performance topic:core
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@KoBeWi @lawnjelly @akien-mga @Chubercik @Mickeon