bc518174
 王天杨
提交两个项目文件
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import { COLUMN, SOURCES_INDEX, SOURCE_LINE, SOURCE_COLUMN } from './sourcemap-segment';
import { sortComparator } from './sort';
import type { ReverseSegment, SourceMapSegment } from './sourcemap-segment';
export type Source = ReverseSegment[][];
// Rebuilds the original source files, with mappings that are ordered by source line/column instead
// of generated line/column.
export default function buildBySources(
decoded: readonly SourceMapSegment[][],
memos: unknown[],
): Source[] {
const sources: Source[] = memos.map(() => []);
for (let i = 0; i < decoded.length; i++) {
const line = decoded[i];
for (let j = 0; j < line.length; j++) {
const seg = line[j];
if (seg.length === 1) continue;
const sourceIndex = seg[SOURCES_INDEX];
const sourceLine = seg[SOURCE_LINE];
const sourceColumn = seg[SOURCE_COLUMN];
const source = sources[sourceIndex];
const segs = (source[sourceLine] ||= []);
segs.push([sourceColumn, i, seg[COLUMN]]);
}
}
for (let i = 0; i < sources.length; i++) {
const source = sources[i];
for (let j = 0; j < source.length; j++) {
const line = source[j];
if (line) line.sort(sortComparator);
}
}
return sources;
}
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