Add event for when tree tokens change #228593
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kalebers
approved these changes
Sep 16, 2024
hediet
approved these changes
Sep 18, 2024
| @@ -102,7 +105,13 @@ export class TextModelTreeSitter extends Disposable { | |||
| } | |||
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| private async _onDidChangeContent(treeSitterTree: TreeSitterParseResult, changes: IModelContentChange[]) { | |||
| return treeSitterTree.onDidChangeContent(this.model, changes); | |||
| const oldTree = treeSitterTree.tree?.copy(); | |||
| await treeSitterTree.onDidChangeContent(this.model, changes); | |||
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Not sure if that is a problem here, but subsequent onDidChangeContent event calls can make multiple promises to get stuck here.
Then line 110 might cause a race condition, depending on which promise resolves first.
| const oldTree = treeSitterTree.tree?.copy(); | ||
| await treeSitterTree.onDidChangeContent(this.model, changes); | ||
| if (oldTree && treeSitterTree.tree) { | ||
| const diff = oldTree.getChangedRanges(treeSitterTree.tree); |
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This diff propagates all the way up to the tokenizer.
However, I'm not sure how "local" the tokenization rules are.
Lets say you have this class:
class Foo {
public bar() {}
}Now, you change public to private:
class Foo {
private bar() {}
}In the tree, the keyword public now changed to private, so that's (hopefully) the range you'd get.
However, it might not be sufficient to only re-render the private token now, as there might be a rule which makes bar bold depending on if the method is public or private.
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Part of #210475