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Commit 3ccab96

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Supresses the IO Exception of convert-source-map
The IO Exception occurs when in the webpack pipeline some files have the .map counterpart but some dont. If the user enables the stats of webpack, he/she would still see the warnings.
1 parent 8dc129e commit 3ccab96

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+16
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1 file changed

+16
-7
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‎src/index.ts‎

Lines changed: 16 additions & 7 deletions
Original file line numberDiff line numberDiff line change
@@ -20,14 +20,23 @@ export default function(this: loader.LoaderContext, source: string, sourceMap?:
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options = Object.assign(defaultOptions, options);
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validateOptions(optionsSchema, options, "Coverage Istanbul Loader");
2222

23-
if (!sourceMap) {
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// Check for an inline source map
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const inlineSourceMap = convert.fromSource(source)
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|| convert.fromMapFileSource(source, path.dirname(this.resourcePath));
23+
try {
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if (!sourceMap) {
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// Check for an inline source map
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const inlineSourceMap = convert.fromSource(source)
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|| convert.fromMapFileSource(source, path.dirname(this.resourcePath));
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28-
if (inlineSourceMap) {
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// Use the inline source map
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sourceMap = inlineSourceMap.sourcemap as RawSourceMap;
29+
if (inlineSourceMap) {
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// Use the inline source map
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sourceMap = inlineSourceMap.sourcemap as RawSourceMap;
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}
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}
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} catch (e) {
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// Exception is thrown by fromMapFileSource when there is no source map file
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if (e instanceof Error && e.message.includes("An error occurred while trying to read the map file at")) {
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this.emitWarning(e);
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} else {
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throw e;
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}
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}
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