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Bump github.com/evanw/esbuild from 0.12.10 to 0.18.3 #403

Closed dependabot[bot] closed 1 year ago

dependabot[bot] commented 1 year ago

Bumps github.com/evanw/esbuild from 0.12.10 to 0.18.3.

Release notes

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

v0.18.3

  • Fix a panic due to empty static class blocks (#3161)

    This release fixes a bug where an internal invariant that was introduced in the previous release was sometimes violated, which then caused a panic. It happened when bundling code containing an empty static class block with both minification and bundling enabled.

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") {

... (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)

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dependabot[bot] commented 1 year ago

Superseded by #404.