import type { MapSource as MapSourceType } from './source-map-tree';
import type { SourceMapInput, SourceMapLoader } from './types';
/**
* Recursively builds a tree structure out of sourcemap files, with each node
* being either an `OriginalSource` "leaf" or a `SourceMapTree` composed of
* `OriginalSource`s and `SourceMapTree`s.
*
* Every sourcemap is composed of a collection of source files and mappings
* into locations of those source files. When we generate a `SourceMapTree` for
* the sourcemap, we attempt to load each source file's own sourcemap. If it
* does not have an associated sourcemap, it is considered an original,
* unmodified source file.
*/
export default function buildSourceMapTree(input: SourceMapInput | SourceMapInput[], loader: SourceMapLoader): MapSourceType;
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