nodeIndex

tcmts.core.analyze.nodeIndex · #b35ygxq6 · term · runs anywhere

import { indexes } from "#codebase/tcmts/core/analyze";
import type { Node as ts_Node, SourceFile as ts_SourceFile } from "typescript/ast";

export function nodeIndex(sf: ts_SourceFile): Map<number, ts_Node> {
  let m = indexes.get(sf);
  if (!m) {
    const out = new Map<number, ts_Node>();
    const walk = (n: ts_Node) => {
      out.set((n as unknown as { index: number }).index, n);
      n.forEachChild(walk, (arr) => void arr.forEach(walk));
    };
    walk(sf);
    indexes.set(sf, (m = out));
  }
  return m;
}

uses

• tcmts.core.analyze.indexes

used by

• tcmts.core.analyze.analyzeSources
• tcmts.core.analyze.tableOf