Add generateDecodedMap and expose SourceMap class #134
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@Rich-Harris see rollup/rollup#2061 for motivation behind this change. It will make Rollup source map generation almost 2x faster.
MagicString
/MagicStringBundle
generateDecodedMap
method, which returns a JSON representation of a source map (with array-form mappings).SourceMap
class that accepts this form and creates a spec-compliant source map object.P.S. Feel free to add me as a collaborator — I can triage some open issues/PRs.