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34 lines
1.3 KiB
34 lines
1.3 KiB
2 years ago
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import * as ts from 'typescript';
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/** Wraps an AST node. Can be used as a tree using `children` or a linked list using `next` and `skip`. */
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export interface NodeWrap {
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/** The real AST node. */
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node: ts.Node;
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/** The SyntaxKind of `node`. */
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kind: ts.SyntaxKind;
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/** All immediate children of `node` that would be visited by `ts.forEachChild(node, cb)`. */
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children: NodeWrap[];
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/** Link to the next NodeWrap, depth-first. */
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next?: NodeWrap;
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/** Link to the next NodeWrap skipping all children of the current node. */
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skip?: NodeWrap;
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/** Link to the parent NodeWrap */
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parent?: NodeWrap;
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}
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export interface WrappedAst extends NodeWrap {
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node: ts.SourceFile;
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next: NodeWrap;
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skip: undefined;
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parent: undefined;
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}
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export interface ConvertedAst {
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/** nodes wrapped in a data structure with useful links */
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wrapped: WrappedAst;
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/** depth-first array of all nodes excluding SourceFile */
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flat: ReadonlyArray<ts.Node>;
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}
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/**
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* Takes a `ts.SourceFile` and creates data structures that are easier (or more performant) to traverse.
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* Note that there is only a performance gain if you can reuse these structures. It's not recommended for one-time AST walks.
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*/
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export declare function convertAst(sourceFile: ts.SourceFile): ConvertedAst;
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