Bump github.com/evanw/esbuild from 0.12.10 to 0.18.5

[dependabot[bot]]

Bumps github.com/evanw/esbuild from 0.12.10 to 0.18.5.

Release notes

Sourced from github.com/evanw/esbuild's releases.

v0.18.5

• Implement auto accessors (#3009)

  This release implements the new auto-accessor syntax from the upcoming JavaScript decorators proposal. The auto-accessor syntax looks like this:

  class Foo {
    accessor foo;
    static accessor bar;
  }
  new Foo().foo = Foo.bar;
  

  This syntax is not yet a part of JavaScript but it was added to TypeScript in version 4.9. More information about this feature can be found in microsoft/TypeScript#49705. Auto-accessors will be transformed if the target is set to something other than esnext:

  // Output (with --target=esnext)
  class Foo {
    accessor foo;
    static accessor bar;
  }
  new Foo().foo = Foo.bar;
  // Output (with --target=es2022)
  class Foo {
  #foo;
  get foo() {
  return this.#foo;
  }
  set foo(_) {
  this.#foo = ;
  }
  static #bar;
  static get bar() {
  return this.#bar;
  }
  static set bar() {
  this.#bar = _;
  }
  }
  new Foo().foo = Foo.bar;
  // Output (with --target=es2021)
  var _foo, _bar;
  class Foo {
  constructor() {
  __privateAdd(this, _foo, void 0);
  }
  get foo() {
  return __privateGet(this, _foo);
  

... (truncated)

Changelog

Sourced from github.com/evanw/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

• 931be1b publish 0.18.5 to npm
• d46e491 fix #3009: release notes for auto-accessor support
• 0252c7b fix decorators on auto-accessors and add a test
• c12b289 check lowering target for js decorators in ts
• 1ca08b0 implement lowering for auto-accessors
• 8ffb21e pull out field lowering into helper
• f52f600 pull out method lowering into helper
• 092f635 move class-related lowering code to another file
• 56698ab rename private symbols so generating them is safe
• 109c94e warn about duplicate class members
• Additional commits viewable in compare view

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Superseded by #408.