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Short-circuit the word and treesitter object movement commands #5851

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merged 1 commit into from
Feb 7, 2023
Merged

Short-circuit the word and treesitter object movement commands #5851

merged 1 commit into from
Feb 7, 2023

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trink
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@trink trink commented Feb 6, 2023

The loop always iterates the number of times the user specified even if the beginning/end of the document is reached.

For an extreme demonstration try the following commands, Helix will hang for several seconds.
100000000w
100000000]c

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LGTM, small and simple fix for a pathological case 👍

We might want to do something similar for other movements like move_next_paragraph and move_prev_paragraph too? It's not as critical there as the loop is quite a bit cheapter but 9999999999999]p also seems to take a lot longer than it should.

@pascalkuthe pascalkuthe added C-bug Category: This is a bug E-easy Call for participation: Experience needed to fix: Easy / not much S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. A-core Area: Helix core improvements labels Feb 6, 2023
pascalkuthe
pascalkuthe approved these changes Feb 6, 2023
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LGTM now, nice catch. It's always good to fixup things that can accidently lockup the UI thread

@pascalkuthe pascalkuthe added S-waiting-on-review Status: Awaiting review from a maintainer. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Feb 6, 2023
the-mikedavis
the-mikedavis reviewed Feb 6, 2023
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Just a minor style nit, otherwise I think this looks good

helix-core/src/movement.rs Outdated Show resolved Hide resolved
@pascalkuthe pascalkuthe added S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. and removed S-waiting-on-review Status: Awaiting review from a maintainer. labels Feb 6, 2023
@trink
Short-circuit the word and treesitter object movement commands
b6aa475 
The loop always iterates the number of times the user specified even
if the beginning/end of the document is reached.

For an extreme demonstration try the following commands, Helix will
hang for several seconds.
100000000w
100000000]c

Review feedback amended:
    - short-circuit the prev/next paragraph commands
@pascalkuthe pascalkuthe added S-waiting-on-review Status: Awaiting review from a maintainer. and removed S-waiting-on-author Status: This is awaiting some action (such as code changes or more information) from the author. labels Feb 7, 2023
@the-mikedavis the-mikedavis merged commit c704701 into helix-editor:master Feb 7, 2023
@trink trink deleted the shortcircut_movement branch March 2, 2024 00:47
@trink trink mentioned this pull request Mar 7, 2024
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@pascalkuthe pascalkuthe pascalkuthe approved these changes

@the-mikedavis the-mikedavis the-mikedavis approved these changes

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A-core Area: Helix core improvements C-bug Category: This is a bug E-easy Call for participation: Experience needed to fix: Easy / not much S-waiting-on-review Status: Awaiting review from a maintainer.
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@trink @pascalkuthe @the-mikedavis