Update esbuild: 0.14.36 → 0.14.38 (minor)

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Here is everything you need to know about this update. Please take a good look at what changed and the test results before merging this pull request.

What changed?

✳️ esbuild (0.14.36 → 0.14.38) · Repo · Changelog

Release Notes

0.14.38

• Further fixes to TypeScript 4.7 instantiation expression parsing (#2201)

  This release fixes some additional edge cases with parsing instantiation expressions from the upcoming version 4.7 of TypeScript. Previously it was allowed for an instantiation expression to precede a binary operator but with this release, that's no longer allowed. This was sometimes valid in the TypeScript 4.7 beta but is no longer allowed in the latest version of TypeScript 4.7. Fixing this also fixed a regression that was introduced by the previous release of esbuild:

  Code	TS 4.6.3	TS 4.7.0 beta	TS 4.7.0 nightly	esbuild 0.14.36	esbuild 0.14.37	esbuild 0.14.38
  a<b> == c<d>	Invalid	a == c	Invalid	a == c	a == c	Invalid
  a<b> in c<d>	Invalid	Invalid	Invalid	Invalid	a in c	Invalid
  a<b>>=c<d>	Invalid	Invalid	Invalid	Invalid	a >= c	Invalid
  a<b>=c<d>	Invalid	a < b >= c	a = c	a < b >= c	a = c	a = c
  a<b>>c<d>	a < b >> c	a < b >> c	a < b >> c	a < b >> c	a > c	a < b >> c

  This table illustrates some of the more significant changes between all of these parsers. The most important part is that esbuild 0.14.38 now matches the behavior of the latest TypeScript compiler for all of these cases.

0.14.37

• Add support for TypeScript's moduleSuffixes field from TypeScript 4.7

  The upcoming version of TypeScript adds the moduleSuffixes field to tsconfig.json that introduces more rules to import path resolution. Setting moduleSuffixes to [".ios", ".native", ""] will try to look at the the relative files ./foo.ios.ts, ./foo.native.ts, and finally ./foo.ts for an import path of ./foo. Note that the empty string "" in moduleSuffixes is necessary for TypeScript to also look-up ./foo.ts. This was announced in the TypeScript 4.7 beta blog post.

• Match the new ASI behavior from TypeScript nightly builds (#2188)

  This release updates esbuild to match some very recent behavior changes in the TypeScript parser regarding automatic semicolon insertion. For more information, see TypeScript issues #48711 and #48654 (I'm not linking to them directly to avoid Dependabot linkback spam on these issues due to esbuild's popularity). The result is that the following TypeScript code is now considered valid TypeScript syntax:

  class A<T> {}
  new A<number> /* ASI now happens here */
  if (0) {}
  
  interface B {
    (a: number): typeof a /* ASI now happens here */
    <T>(): void
  }

  This fix was contributed by @g-plane.

Does any of this look wrong? Please let us know.

Commits

See the full diff on Github. The new version differs by 6 commits:

• publish 0.14.38 to npm
• fix #2201: more ts instantiation expression fixes
• publish 0.14.37 to npm
• Make TS InstantiationExpr parsing more permissive (#2188)
• allow ASI before `<` in typescript type parameters
• support `moduleSuffixes` in `tsconfig.json`

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