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JestRuntime:-Using scriptTransformer cache in jest-runner #13735

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merged 3 commits into from
Jan 7, 2023
Merged

JestRuntime:-Using scriptTransformer cache in jest-runner #13735

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3ec9e05
Using scriptTransformer cache in jest-runner
Biki-das Jan 5, 2023
503d86f
Removed transformed files import
Biki-das Jan 5, 2023
99093ae
Removed the if condition and Added the changelog
Biki-das Jan 7, 2023
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1 change: 1 addition & 0 deletions CHANGELOG.md
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@
- `[@jest/expect-utils]` `toMatchObject` should handle `Symbol` properties ([#13639](https://github.com/facebook/jest/pull/13639))
- `[jest-resolve]` Add global paths to `require.resolve.paths` ([#13633](https://github.com/facebook/jest/pull/13633))
- `[jest-runtime]` Support Wasm files that import JS resources ([#13608](https://github.com/facebook/jest/pull/13608))
- `[jest-runtime]` Using the scriptTransformer cache in jest-runner ([#13735](https://github.com/facebook/jest/pull/13735))
- `[jest-snapshot]` Make sure to import `babel` outside of the sandbox ([#13694](https://github.com/facebook/jest/pull/13694))

### Chore & Maintenance
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29 changes: 8 additions & 21 deletions packages/jest-runtime/src/index.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -42,7 +42,6 @@ import {
CallerTransformOptions,
ScriptTransformer,
ShouldInstrumentOptions,
TransformResult,
TransformationOptions,
handlePotentialSyntaxError,
shouldInstrument,
Expand Down Expand Up @@ -1574,14 +1573,7 @@ export default class Runtime {
return source;
}

let transformedFile: TransformResult | undefined =
this._fileTransforms.get(filename);

if (transformedFile) {
return transformedFile.code;
}

transformedFile = this._scriptTransformer.transform(
const transformedFile = this._scriptTransformer.transform(
filename,
this._getFullTransformationOptions(options),
source,
Expand All @@ -1608,23 +1600,18 @@ export default class Runtime {
return source;
}

let transformedFile: TransformResult | undefined =
this._fileTransforms.get(filename);

if (transformedFile) {
return transformedFile.code;
}

transformedFile = await this._scriptTransformer.transformAsync(
const transformedFile = await this._scriptTransformer.transformAsync(
filename,
this._getFullTransformationOptions(options),
source,
);

this._fileTransforms.set(filename, {
...transformedFile,
wrapperLength: 0,
});
if (this._fileTransforms.get(filename)?.code !== transformedFile.code) {
this._fileTransforms.set(filename, {
...transformedFile,
wrapperLength: 0,
});
}

if (transformedFile.sourceMapPath) {
this._sourceMapRegistry.set(filename, transformedFile.sourceMapPath);
Expand Down