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add existence check when merging source map - fixes #1111

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This commit is contained in:
Sebastian McKenzie 2015-03-29 17:17:43 +11:00
parent 94f005e324
commit e26f994075
1 changed files with 3 additions and 1 deletions
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4
src/babel/transformation/file/index.js
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@ -535,7 +535,9 @@ export default class File {
result.code = `${this.shebang}\n${result.code}`;
}
result.map = this.mergeSourceMap(result.map);
if (result.map) {
result.map = this.mergeSourceMap(result.map);
}
if (opts.sourceMaps === "inline" || opts.sourceMaps === "both") {
result.code += "\n" + convertSourceMap.fromObject(result.map).toComment();