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