chore(deps): bump esbuild from 0.15.18 to 0.20.1

[dependabot]

Bumps esbuild from 0.15.18 to 0.20.1.

Release notes

Sourced from esbuild's releases.

v0.20.1

• Fix a bug with the CSS nesting transform (#3648)

  This release fixes a bug with the CSS nesting transform for older browsers where the generated CSS could be incorrect if a selector list contained a pseudo element followed by another selector. The bug was caused by incorrectly mutating the parent rule's selector list when filtering out pseudo elements for the child rules:

  /* Original code */
  .foo {
    &:after,
    & .bar {
      color: red;
    }
  }
  /* Old output (with --supported:nesting=false) */
  .foo .bar,
  .foo .bar {
  color: red;
  }
  /* New output (with --supported:nesting=false) */
  .foo:after,
  .foo .bar {
  color: red;
  }

• Constant folding for JavaScript inequality operators (#3645)

  This release introduces constant folding for the < > <= >= operators. The minifier will now replace these operators with true or false when both sides are compile-time numeric or string constants:

  // Original code
  console.log(1 < 2, '🍕' > '🧀')
  // Old output (with --minify)
  console.log(1<2,"🍕">"🧀");
  // New output (with --minify)
  console.log(!0,!1);

• Better handling of __proto__ edge cases (#3651)

  JavaScript object literal syntax contains a special case where a non-computed property with a key of __proto__ sets the prototype of the object. This does not apply to computed properties or to properties that use the shorthand property syntax introduced in ES6. Previously esbuild didn't correctly preserve the "sets the prototype" status of properties inside an object literal, meaning a property that sets the prototype could accidentally be transformed into one that doesn't and vice versa. This has now been fixed:

  // Original code
  function foo(__proto__) {
    return { __proto__: __proto__ } // Note: sets the prototype

... (truncated)

Changelog

Sourced from esbuild's changelog.

Changelog: 2022

This changelog documents all esbuild versions published in the year 2022 (versions 0.14.11 through 0.16.12).

0.16.12

• Loader defaults to js for extensionless files (#2776)

  Certain packages contain files without an extension. For example, the yargs package contains the file yargs/yargs which has no extension. Node, Webpack, and Parcel can all understand code that imports yargs/yargs because they assume that the file is JavaScript. However, esbuild was previously unable to understand this code because it relies on the file extension to tell it how to interpret the file. With this release, esbuild will now assume files without an extension are JavaScript files. This can be customized by setting the loader for "" (the empty string, representing files without an extension) to another loader. For example, if you want files without an extension to be treated as CSS instead, you can do that like this:

  • CLI:

    esbuild --bundle --loader:=css
    

  • JS:

    esbuild.build({
      bundle: true,
      loader: { '': 'css' },
    })

  • Go:

    api.Build(api.BuildOptions{
      Bundle: true,
      Loader: map[string]api.Loader{"": api.LoaderCSS},
    })

  In addition, the "type" field in package.json files now only applies to files with an explicit .js, .jsx, .ts, or .tsx extension. Previously it was incorrectly applied by esbuild to all files that had an extension other than .mjs, .mts, .cjs, or .cts including extensionless files. So for example an extensionless file in a "type": "module" package is now treated as CommonJS instead of ESM.

0.16.11

• Avoid a syntax error in the presence of direct eval (#2761)

  The behavior of nested function declarations in JavaScript depends on whether the code is run in strict mode or not. It would be problematic if esbuild preserved nested function declarations in its output because then the behavior would depend on whether the output was run in strict mode or not instead of respecting the strict mode behavior of the original source code. To avoid this, esbuild transforms nested function declarations to preserve the intended behavior of the original source code regardless of whether the output is run in strict mode or not:

  // Original code
  if (true) {
    function foo() {}
    console.log(!!foo)
    foo = null
    console.log(!!foo)
  }

... (truncated)

Commits

• 9f9e4f8 publish 0.20.1 to npm
• ac36537 fix #3651: handle __proto__ edge cases better
• 555db48 fix #3645: constant folding for \< > \<= >=
• 5650831 fix #3650: add a wrapper for float64 math
• d086889 fix some lints
• ad3d8c6 fix #3648: copy selectors before checking children
• a08f30d fix #3634: crash if resolving with bad source dir
• 2af5ccf publish 0.20.0 to npm
• 0bccf08 fix esbuild/deno-esbuild#5
• 931f87d work around api deprecations in deno 1.40.x (#3609) (#3611)
• Additional commits viewable in compare view

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[dependabot]

Superseded by #2502.