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node_modules/@jridgewell/remapping/src/remapping.ts

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+import buildSourceMapTree from './build-source-map-tree';
+import { traceMappings } from './source-map-tree';
+import SourceMap from './source-map';
+
+import type { SourceMapInput, SourceMapLoader, Options } from './types';
+export type {
+  SourceMapSegment,
+  EncodedSourceMap,
+  EncodedSourceMap as RawSourceMap,
+  DecodedSourceMap,
+  SourceMapInput,
+  SourceMapLoader,
+  LoaderContext,
+  Options,
+} from './types';
+export type { SourceMap };
+
+/**
+ * Traces through all the mappings in the root sourcemap, through the sources
+ * (and their sourcemaps), all the way back to the original source location.
+ *
+ * `loader` will be called every time we encounter a source file. If it returns
+ * a sourcemap, we will recurse into that sourcemap to continue the trace. If
+ * it returns a falsey value, that source file is treated as an original,
+ * unmodified source file.
+ *
+ * Pass `excludeContent` to exclude any self-containing source file content
+ * from the output sourcemap.
+ *
+ * Pass `decodedMappings` to receive a SourceMap with decoded (instead of
+ * VLQ encoded) mappings.
+ */
+export default function remapping(
+  input: SourceMapInput | SourceMapInput[],
+  loader: SourceMapLoader,
+  options?: boolean | Options,
+): SourceMap {
+  const opts =
+    typeof options === 'object' ? options : { excludeContent: !!options, decodedMappings: false };
+  const tree = buildSourceMapTree(input, loader);
+  return new SourceMap(traceMappings(tree), opts);
+}