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Fix sourcemap lookup when line numbers are enabled #81

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Merged
nsavoire merged 1 commit into from
Mar 9, 2023
Merged

Fix sourcemap lookup when line numbers are enabled #81

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12 changes: 10 additions & 2 deletions ts/src/sourcemapper/sourcemapper.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -212,13 +212,21 @@ export class SourceMapper {
return location;
}

const generatedPos = {line: location.line, column: location.column};
const generatedPos = {
line: location.line,
column: location.column,
bias: sourceMap.SourceMapConsumer.LEAST_UPPER_BOUND,
};

// TODO: Determine how to remove the explicit cast here.
const consumer: sourceMap.SourceMapConsumer =
entry.mapConsumer as {} as sourceMap.SourceMapConsumer;

const pos = consumer.originalPositionFor(generatedPos);
let pos = consumer.originalPositionFor(generatedPos);
if (pos.source === null) {
generatedPos.bias = sourceMap.SourceMapConsumer.GREATEST_LOWER_BOUND;
pos = consumer.originalPositionFor(generatedPos);
}
if (pos.source === null) {
return location;
}
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