chore(deps): update dependency esbuild to v0.19.3

[renovate]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
esbuild	0.19.2 -> 0.19.3

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Release Notes

evanw/esbuild (esbuild)

v0.19.3

Compare Source

• Fix list-style-type with the local-css loader (#​3325)

  The local-css loader incorrectly treated all identifiers provided to list-style-type as a custom local identifier. That included identifiers such as none which have special meaning in CSS, and which should not be treated as custom local identifiers. This release fixes this bug:

  /* Original code */
  ul { list-style-type: none }
  
  /* Old output (with --loader=local-css) */
  ul {
    list-style-type: stdin_none;
  }
  
  /* New output (with --loader=local-css) */
  ul {
    list-style-type: none;
  }

  Note that this bug only affected code using the local-css loader. It did not affect code using the css loader.

• Avoid inserting temporary variables before use strict (#​3322)

  This release fixes a bug where esbuild could incorrectly insert automatically-generated temporary variables before use strict directives:

  // Original code
  function foo() {
    'use strict'
    a.b?.c()
  }
  
  // Old output (with --target=es6)
  function foo() {
    var _a;
    "use strict";
    (_a = a.b) == null ? void 0 : _a.c();
  }
  
  // New output (with --target=es6)
  function foo() {
    "use strict";
    var _a;
    (_a = a.b) == null ? void 0 : _a.c();
  }

• Adjust TypeScript enum output to better approximate tsc (#​3329)

  TypeScript enum values can be either number literals or string literals. Numbers create a bidirectional mapping between the name and the value but strings only create a unidirectional mapping from the name to the value. When the enum value is neither a number literal nor a string literal, TypeScript and esbuild both default to treating it as a number:

  // Original TypeScript code
  declare const foo: any
  enum Foo {
    NUMBER = 1,
    STRING = 'a',
    OTHER = foo,
  }
  
  // Compiled JavaScript code (from "tsc")
  var Foo;
  (function (Foo) {
    Foo[Foo["NUMBER"] = 1] = "NUMBER";
    Foo["STRING"] = "a";
    Foo[Foo["OTHER"] = foo] = "OTHER";
  })(Foo || (Foo = {}));

  However, TypeScript does constant folding slightly differently than esbuild. For example, it may consider template literals to be string literals in some cases:

  // Original TypeScript code
  declare const foo = 'foo'
  enum Foo {
    PRESENT = `${foo}`,
    MISSING = `${bar}`,
  }
  
  // Compiled JavaScript code (from "tsc")
  var Foo;
  (function (Foo) {
    Foo["PRESENT"] = "foo";
    Foo[Foo["MISSING"] = `${bar}`] = "MISSING";
  })(Foo || (Foo = {}));

  The template literal initializer for PRESENT is treated as a string while the template literal initializer for MISSING is treated as a number. Previously esbuild treated both of these cases as a number but starting with this release, esbuild will now treat both of these cases as a string. This doesn't exactly match the behavior of tsc but in the case where the behavior diverges tsc reports a compile error, so this seems like acceptible behavior for esbuild. Note that handling these cases completely correctly would require esbuild to parse type declarations (see the declare keyword), which esbuild deliberately doesn't do.

• Ignore case in CSS in more places (#​3316)

  This release makes esbuild's CSS support more case-agnostic, which better matches how browsers work. For example:

  /* Original code */
  @​KeyFrames Foo { From { OpaCity: 0 } To { OpaCity: 1 } }
  body { CoLoR: YeLLoW }
  
  /* Old output (with --minify) */
  @​KeyFrames Foo{From {OpaCity: 0} To {OpaCity: 1}}body{CoLoR:YeLLoW}
  
  /* New output (with --minify) */
  @​KeyFrames Foo{0%{OpaCity:0}To{OpaCity:1}}body{CoLoR:#ff0}

  Please never actually write code like this.

• Improve the error message for null entries in exports (#​3377)

  Package authors can disable package export paths with the exports map in package.json. With this release, esbuild now has a clearer error message that points to the null token in package.json itself instead of to the surrounding context. Here is an example of the new error message:

  ✘ [ERROR] Could not resolve "msw/browser"
  
      lib/msw-config.ts:2:28:
        2 │ import { setupWorker } from 'msw/browser';
          ╵                             ~~~~~~~~~~~~~
  
    The path "./browser" cannot be imported from package "msw" because it was explicitly disabled by
    the package author here:
  
      node_modules/msw/package.json:17:14:
        17 │       "node": null,
           ╵               ~~~~
  
    You can mark the path "msw/browser" as external to exclude it from the bundle, which will remove
    this error and leave the unresolved path in the bundle.
  

• Parse and print the with keyword in import statements

  JavaScript was going to have a feature called "import assertions" that adds an assert keyword to import statements. It looked like this:

  import stuff from './stuff.json' assert { type: 'json' }

  The feature provided a way to assert that the imported file is of a certain type (but was not allowed to affect how the import is interpreted, even though that's how everyone expected it to behave). The feature was fully specified and then actually implemented and shipped in Chrome before the people behind the feature realized that they should allow it to affect how the import is interpreted after all. So import assertions are no longer going to be added to the language.

  Instead, the current proposal is to add a feature called "import attributes" instead that adds a with keyword to import statements. It looks like this:

  import stuff from './stuff.json' with { type: 'json' }

  This feature provides a way to affect how the import is interpreted. With this release, esbuild now has preliminary support for parsing and printing this new with keyword. The with keyword is not yet interpreted by esbuild, however, so bundling code with it will generate a build error. All this release does is allow you to use esbuild to process code containing it (such as removing types from TypeScript code). Note that this syntax is not yet a part of JavaScript and may be removed or altered in the future if the specification changes (which it already has once, as described above). If that happens, esbuild reserves the right to remove or alter its support for this syntax too.

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