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33 lines
604 B
TypeScript
33 lines
604 B
TypeScript
import { syntaxTree } from '@codemirror/language';
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import { EditorState } from '@codemirror/state';
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interface Range {
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from: number;
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to: number;
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}
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const intersectsSyntaxNode = (state: EditorState, range: Range, nodeName: string) => {
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let foundNode = false;
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syntaxTree(state).iterate({
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from: range.from,
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to: range.to,
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enter: node => {
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if (node.name === nodeName) {
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foundNode = true;
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// Skip children
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return false;
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}
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// Search children if we haven't found a matching node yet.
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return !foundNode;
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},
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});
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return foundNode;
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};
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export default intersectsSyntaxNode;
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