feat: add support for compileFunction allowing us to avoid the module wrapper#9252
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SimenB
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SimenB
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SimenB
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Dec 1, 2019
SimenB
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Dec 1, 2019
| return compileFunction(code, params, { | ||
| filename, | ||
| parsingContext: this.context, | ||
| }) as any; |
thymikee
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@thymikee I've reworked this to use feature detection instead of an option, and just dropped it from jsdom for now. It should be invisible to consumers. Thoughts? |
SimenB
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Dec 1, 2019
| fakeTimersLolex: LolexFakeTimers | null; | ||
| moduleMocker: jestMock.ModuleMocker | null; | ||
| runScript<T = unknown>(script: Script): T | null; | ||
| compileFunction?<T = unknown>( |
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I've made it optional so we're not blocked by jsdom having support. It'll silently use it if it's ever implemented
SimenB
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Dec 1, 2019
| if ( | ||
| e instanceof SyntaxError && | ||
| // `instanceof` might come from the wrong context | ||
| e.name === 'SyntaxError' && |
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the SyntaxError thrown by compileFunction comes from the passed in context
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compileFunction allowing us to avoid the module wrapper
SimenB
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Dec 1, 2019
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@SimenB works for me |
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This pull request has been automatically locked since there has not been any recent activity after it was closed. Please open a new issue for related bugs. |
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Summary
This is essentially nodejs/node#21573. Doing this should make it easier for sourcemaps to do their thing since we don't inject arbitrary code around the code.
I made this into an option as
vm.compileFunctionwas addednode@10.10. Happy to not have an option and rather use feature detection? Also note that JSDOM does not support it, but I'll open up a PR shortly.EDIT: jsdom/jsdom#2731
Mildly related to #8596 as it won't need the
moduleWrapperLengththing anymore.Docs: https://nodejs.org/api/vm.html#vm_vm_compilefunction_code_params_options
Test plan
I haven't added new tests yet, but existing tests should pass, na drunning locally with
--no-module-wrapperseems to work correctly. If CI is happy, I'll flip the default and see what it says - hopefully the only failing tests at that point will be the ones for config