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Provide compiled JSON to TypeScript compiler. (#4404)

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Fixes #4101

Previously, we would just provide the raw JSON to the TypeScript
compiler worker, but TypeScript does not transform JSON.  This caused
a problem when emitting a bundle, that the JSON would just be "inlined"
into the output, instead of being transformed into a module.

This fixes this problem by providing the compiled JSON to the TypeScript
compiler, so TypeScript just sees JSON as a "normal" TypeScript module.
This commit is contained in:
Kitson Kelly 2020-03-19 03:39:53 +11:00 • committed by GitHub
parent 83f4916195
commit da8cb408c8
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5 changed files with 60 additions and 7 deletions
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5
cli/js/compiler/sourcefile.ts
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@ -35,7 +35,10 @@ function getExtension(fileName: string, mediaType: MediaType): ts.Extension {
case MediaType.TSX:
return ts.Extension.Tsx;
case MediaType.Json:
return ts.Extension.Json;
// we internally compile JSON, so what gets provided to the TypeScript
// compiler is an ES module, but in order to get TypeScript to handle it
// properly we have to pretend it is TS.
return ts.Extension.Ts;
case MediaType.Wasm:
// Custom marker for Wasm type.
return ts.Extension.Js;