Bump github.com/evanw/esbuild from 0.12.10 to 0.18.2

[dependabot[bot]]

Bumps github.com/evanw/esbuild from 0.12.10 to 0.18.2.

Release notes

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

v0.18.2

• Lower static blocks when static fields are lowered (#2800, #2950, #3025)

  This release fixes a bug where esbuild incorrectly did not lower static class blocks when static class fields needed to be lowered. For example, the following code should print 1 2 3 but previously printed 2 1 3 instead due to this bug:

  // Original code
  class Foo {
    static x = console.log(1)
    static { console.log(2) }
    static y = console.log(3)
  }
  // Old output (with --supported:class-static-field=false)
  class Foo {
  static {
  console.log(2);
  }
  }
  __publicField(Foo, "x", console.log(1));
  __publicField(Foo, "y", console.log(3));
  // New output (with --supported:class-static-field=false)
  class Foo {
  }
  __publicField(Foo, "x", console.log(1));
  console.log(2);
  __publicField(Foo, "y", console.log(3));
  

• Use static blocks to implement --keep-names on classes (#2389)

  This change fixes a bug where the name property could previously be incorrect within a class static context when using --keep-names. The problem was that the name property was being initialized after static blocks were run instead of before. This has been fixed by moving the name property initializer into a static block at the top of the class body:

  // Original code
  if (typeof Foo === 'undefined') {
    let Foo = class {
      static test = this.name
    }
    console.log(Foo.test)
  }
  // Old output (with --keep-names)
  if (typeof Foo === "undefined") {
  let Foo2 = /* @PURE */ __name(class {
  static test = this.name;
  }, "Foo");
  console.log(Foo2.test);
  }
  

... (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

• a7a9096 publish 0.18.2 to npm
• d5b317a fix #2389: use a static block for --keep-names
• fb38ef6 inline static blocks that are all expressions
• 8bdc589 use X instead of ✘ in expected logs on windows
• b76b433 ignore uglify failure about default arugment tdz
• 70e59c3 run more class lowering tests with bundling on
• c12cc90 fix #2800, fix #2950, fix #3025: static blocks
• a1a1e44 auto-annotate pure iife expressions
• 3aa3ec2 publish 0.18.1 to npm
• 394941b #3149: @__NO_SIDE_EFFECTS__ on async functions
• Additional commits viewable in compare view

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[dependabot[bot]]

Superseded by #403.