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Flow: add decodedMap to Babel type definitions #57302

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Flow: add decodedMap to Babel type definitions #57302

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19 changes: 19 additions & 0 deletions flow-typed/npm/babel_v7.x.x.js
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Original file line number Diff line number Diff line change
Expand Up @@ -28,6 +28,24 @@ type _BabelSourceMapSegment = {
...
};

// A "decoded" source map (as produced by `@jridgewell/gen-mapping`), grouped by
// generated line. Segment fields are all 0-based: generated column, source
// index, source line, source column, name index.
type _BabelDecodedSourceMapSegment =
| [number]
| [number, number, number, number]
| [number, number, number, number, number];

type _BabelDecodedSourceMap = Readonly<{
file?: string,
mappings: Array<Array<_BabelDecodedSourceMapSegment>>,
names: Array<string>,
sourceRoot?: string,
sources: Array<string>,
sourcesContent?: Array<?string>,
version: number,
}>;

export type BabelSourceLocation = Readonly<{
start: Readonly<{line: number, column: number}>,
end: Readonly<{line: number, column: number}>,
Expand Down Expand Up @@ -1111,6 +1129,7 @@ declare module '@babel/generator' {
declare export type GeneratorResult = {
code: string,
map: ?_BabelSourceMap,
decodedMap: ?_BabelDecodedSourceMap,
rawMappings: ?Array<BabelSourceMapSegment>,
};

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