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fix(compiler): support `sourceMappingURL` comments that have trailing lines (#28055) 

Previously the call to `extractSourceMap()` would only work if the
`//#sourceMappingURL ...` was the last line of the file. This doesn't
work if the code is JIT evaluated as the comment is actually the last
line in the body of a function, wrapped by curly-braces.

PR Close #28055
This commit is contained in:
Pete Bacon Darwin 2019-02-08 22:10:20 +00:00 committed by Misko Hevery
parent 54ca24b47d
commit 0d6fdec4bd
1 changed files with 1 additions and 1 deletions
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2
packages/compiler/testing/src/output/source_map_util.ts
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@ -29,7 +29,7 @@ export function originalPositionFor(
export function extractSourceMap(source: string): SourceMap|null { export function extractSourceMap(source: string): SourceMap|null {
let idx = source.lastIndexOf('\n//#'); let idx = source.lastIndexOf('\n//#');
if (idx == -1) return null; if (idx == -1) return null;
const smComment = source.slice(idx).trim(); const smComment = source.slice(idx).split('\n', 2)[1].trim();
const smB64 = smComment.split('sourceMappingURL=data:application/json;base64,')[1]; const smB64 = smComment.split('sourceMappingURL=data:application/json;base64,')[1];
return smB64 ? JSON.parse(decodeB64String(smB64)) : null; return smB64 ? JSON.parse(decodeB64String(smB64)) : null;
} }