Bump esbuild from 0.12.6 to 0.18.11

[dependabot]

Bumps esbuild from 0.12.6 to 0.18.11.

Release notes

Sourced from esbuild's releases.

v0.18.11

• Fix a TypeScript code generation edge case (#3199)

  This release fixes a regression in version 0.18.4 where using a TypeScript namespace that exports a class declaration combined with --keep-names and a --target of es2021 or earlier could cause esbuild to export the class from the namespace using an incorrect name (notice the assignment to X2._Y vs. X2.Y):

  // Original code
  // Old output (with --keep-names --target=es2021)
  var X;
  ((X2) => {
  const _Y = class _Y {
  };
  __name(_Y, "Y");
  let Y = _Y;
  X2._Y = _Y;
  })(X || (X = {}));
  // New output (with --keep-names --target=es2021)
  var X;
  ((X2) => {
  const _Y = class _Y {
  };
  __name(_Y, "Y");
  let Y = _Y;
  X2.Y = _Y;
  })(X || (X = {}));

v0.18.10

• Fix a tree-shaking bug that removed side effects (#3195)

  This fixes a regression in version 0.18.4 where combining --minify-syntax with --keep-names could cause expressions with side effects after a function declaration to be considered side-effect free for tree shaking purposes. The reason was because --keep-names generates an expression statement containing a call to a helper function after the function declaration with a special flag that makes the function call able to be tree shaken, and then --minify-syntax could potentially merge that expression statement with following expressions without clearing the flag. This release fixes the bug by clearing the flag when merging expression statements together.

• Fix an incorrect warning about CSS nesting (#3197)

  A warning is currently generated when transforming nested CSS to a browser that doesn't support :is() because transformed nested CSS may need to use that feature to represent nesting. This was previously always triggered when an at-rule was encountered in a declaration context. Typically the only case you would encounter this is when using CSS nesting within a selector rule. However, there is a case where that's not true: when using a margin at-rule such as @top-left within @page. This release avoids incorrectly generating a warning in this case by checking that the at-rule is within a selector rule before generating a warning.

v0.18.9

• Fix await using declarations inside async generator functions

  I forgot about the new await using declarations when implementing lowering for async generator functions in the previous release. This change fixes the transformation of await using declarations when they are inside lowered async generator functions:

  // Original code
  async function* foo() {
    await using x = await y
  }
  // Old output (with --supported:async-generator=false)

... (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

• 2703f90 publish 0.18.11 to npm
• cd23ee5 fix #3199: keep names + namespace + export class
• 52110fd fix catch block mapping in source maps
• babcb2c alphabetize engine names in generated code
• cdb6c7c publish 0.18.10 to npm
• 8a15942 fix #3197: css nesting warning in selector subtree
• b677152 fix #3195: tree-shaking bug that didn't keep code
• d568ff0 publish 0.18.9 to npm
• 7e10dd6 fix #2041: add text loader data to source maps
• 9ed47f5 fix #3122: prefix some more css properties
• Additional commits viewable in compare view

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[dependabot]

Superseded by #412.