Bump esbuild from 0.12.6 to 0.17.15

[dependabot]

Bumps esbuild from 0.12.6 to 0.17.15.

Release notes

Sourced from esbuild's releases.

v0.17.15

• Allow keywords as type parameter names in mapped types (#3033)

  TypeScript allows type keywords to be used as parameter names in mapped types. Previously esbuild incorrectly treated this as an error. Code that does this is now supported:

  type Foo = 'a' | 'b' | 'c'
  type A = { [keyof in Foo]: number }
  type B = { [infer in Foo]: number }
  type C = { [readonly in Foo]: number }

• Add annotations for re-exported modules in node (#2486, #3029)

  Node lets you import named imports from a CommonJS module using ESM import syntax. However, the allowed names aren't derived from the properties of the CommonJS module. Instead they are derived from an arbitrary syntax-only analysis of the CommonJS module's JavaScript AST.

  To accommodate node doing this, esbuild's ESM-to-CommonJS conversion adds a special non-executable "annotation" for node that describes the exports that node should expose in this scenario. It takes the form 0 && (module.exports = { ... }) and comes at the end of the file (0 && expr means expr is never evaluated).

  Previously esbuild didn't do this for modules re-exported using the export * from syntax. Annotations for these re-exports will now be added starting with this release:

  // Original input
  export { foo } from './foo'
  export * from './bar'
  // Old output (with --format=cjs --platform=node)
  ...
  0 && (module.exports = {
  foo
  });
  // New output (with --format=cjs --platform=node)
  ...
  0 && (module.exports = {
  foo,
  ...require("./bar")
  });

  Note that you need to specify both --format=cjs and --platform=node to get these node-specific annotations.

• Avoid printing an unnecessary space in between a number and a . (#3026)

  JavaScript typically requires a space in between a number token and a . token to avoid the . being interpreted as a decimal point instead of a member expression. However, this space is not required if the number token itself contains a decimal point, an exponent, or uses a base other than 10. This release of esbuild now avoids printing the unnecessary space in these cases:

  // Original input
  foo(1000 .x, 0 .x, 0.1 .x, 0.0001 .x, 0xFFFF_0000_FFFF_0000 .x)
  // Old output (with --minify)

... (truncated)

Changelog

Sourced from esbuild's changelog.

Changelog: 2021

This changelog documents all esbuild versions published in the year 2021 (versions 0.8.29 through 0.14.10).

0.14.10

• Enable tree shaking of classes with lowered static fields (#175)

  If the configured target environment doesn't support static class fields, they are converted into a call to esbuild's __publicField function instead. However, esbuild's tree-shaking pass treated this call as a side effect, which meant that all classes with static fields were ineligible for tree shaking. This release fixes the problem by explicitly ignoring calls to the __publicField function during tree shaking side-effect determination. Tree shaking is now enabled for these classes:

  // Original code
  class Foo { static foo = 'foo' }
  class Bar { static bar = 'bar' }
  new Bar()
  // Old output (with --tree-shaking=true --target=es6)
  class Foo {
  }
  __publicField(Foo, "foo", "foo");
  class Bar {
  }
  __publicField(Bar, "bar", "bar");
  new Bar();
  // New output (with --tree-shaking=true --target=es6)
  class Bar {
  }
  __publicField(Bar, "bar", "bar");
  new Bar();

• Treat --define:foo=undefined as an undefined literal instead of an identifier (#1407)

  References to the global variable undefined are automatically replaced with the literal value for undefined, which appears as void 0 when printed. This allows for additional optimizations such as collapsing undefined ?? bar into just bar. However, this substitution was not done for values specified via --define:. As a result, esbuild could potentially miss out on certain optimizations in these cases. With this release, it's now possible to use --define: to substitute something with an undefined literal:

  // Original code
  let win = typeof window !== 'undefined' ? window : {}
  // Old output (with --define:window=undefined --minify)
  let win=typeof undefined!="undefined"?undefined:{};
  // New output (with --define:window=undefined --minify)
  let win={};

• Add the --drop:debugger flag (#1809)

  Passing this flag causes all debugger; statements to be removed from the output. This is similar to the drop_debugger: true flag available in the popular UglifyJS and Terser JavaScript minifiers.

... (truncated)

Commits

• ef91289 publish 0.17.15 to npm
• f780ad3 fix #3027: live reload SSE when outdir is /
• fa974c2 close #3026: remove unneeded spaces after numbers
• b86e581 fix #2486, fix #3029: node re-export annotations
• 9fbf1fd fix #3033: mapped type parameters can be keywords
• b2b8978 publish 0.17.14 to npm
• 079eca4 fix #3021: add support for const in object types
• 72c8379 fix #1945: initial lowering code for css nesting
• 96e09b4 cannot inline no-op nesting with pseudo-elements
• cd62fa1 minify: remove unnecessary & selectors
• Additional commits viewable in compare view

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[dependabot]

Superseded by #360.