Fix TypeScript-specific class transform edge case (#3559)
The previous release introduced an optimization that avoided transforming super() in the class constructor for TypeScript code compiled with useDefineForClassFields set to false if all class instance fields have no initializers. The rationale was that in this case, all class instance fields are omitted in the output so no changes to the constructor are needed. However, if all of this is the case and there are #private instance fields with initializers, those private instance field initializers were still being moved into the constructor. This was problematic because they were being inserted before the call to super() (since super() is now no longer transformed in that case). This release introduces an additional optimization that avoids moving the private instance field initializers into the constructor in this edge case, which generates smaller code, matches the TypeScript compiler's output more closely, and avoids this bug:
// Original code
class Foo extends Bar {
#private = 1;
public: any;
constructor() {
super();
}
}
// Old output (with esbuild v0.19.9)
class Foo extends Bar {
constructor() {
super();
this.#private = 1;
}
#private;
}
// Old output (with esbuild v0.19.10)
class Foo extends Bar {
constructor() {
this.#private = 1;
super();
}
#private;
}
// New output
class Foo extends Bar {
#private = 1;
constructor() {
super();
}
}
Minifier: allow reording a primitive past a side-effect (#3568)
The minifier previously allowed reordering a side-effect past a primitive, but didn't handle the case of reordering a primitive past a side-effect. This additional case is now handled:
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:
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)
}
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Bumps the dev-deps group with 10 updates:
10.0.410.0.60.1.100.1.116.12.06.19.06.12.06.19.00.14.540.19.118.54.08.56.02.29.02.29.12.2.52.3.03.1.03.1.15.2.25.3.3Updates
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7c673a1chore(release): publish 6.19.085ae4a8fix(eslint-plugin): [no-unnecesary-type-assertion] treat unknown/any as nulla...5a56708fix(eslint-plugin): [no-unnecessary-type-assertion] detect unnecessary non-nu...c3767edfeat(eslint-plugin): [no-useless-template-literals] add fix suggestions (#8065)8ca5e5edocs: force space after await in no-floating-promises snippet (#8228)e0f591efeat(eslint-plugin): [no-array-delete] add new rule (#8067)1aa8664feat(eslint-plugin): [prefer-promise-reject-errors] add rule (#8011)aa7ab0echore(release): publish 6.18.178db0adchore: fix test formatting in prefer-readonly.test.ts (#8223)5205192fix(eslint-plugin): [switch-exhaustiveness-check] fix new allowDefaultCaseFor...Updates
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7c673a1chore(release): publish 6.19.0aa7ab0echore(release): publish 6.18.11ee3087chore: enable eslint-plugin-jsdoc internally (#8145)21460efchore(release): publish 6.18.0d0977abchore: use nx release (#8194)e566a5dchore: publish v6.17.07246e56chore: publish v6.16.06128a02chore: publish v6.15.0c7d702fchore: publish v6.14.0cc2c6d3chore: publish v6.13.2Updates
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6ee8225publish 0.19.11 to npmf8ae3affix #3561: treeshaking of knownSymbolinstances0811058switch define data to flagsf5f8ff8fix #3568: can reorder primitive past side-effect914f608fix #3558: put thestop()api call back2aa166bfix #3559: fix recent class transform regression55e1127publish 0.19.10 to npmd968af2fix #3511:@__NO_SIDE_EFFECTS__with templates00c4ebefix #3546: don't transformrequireglob importse1b7050fix #3319: missing symbol usage in glob transformUpdates
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8e8e9f88.56.0085978bBuild: changelog update for 8.56.0ba6af85chore: upgrade@eslint/js@8.56.0 (#17864)60a531achore: package.json update for@eslint/jsrelease0dd9704feat: Support custom severity when reporting unused disable directives (#17212)31a7e3ffeat: fix no-restricted-properties false negatives with unknown objects (#17818)ba87a06chore: update dependency markdownlint to ^0.32.0 (#17783)7d5e5f6fix:TypeError: fs.exists is not a functionon read-only file system (#17846)9271d10chore: add GitHub issue template for docs issues (#17845)70a686bchore: Convert rule tests to FlatRuleTester (#17819)Updates
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ee5fadeBump to 2.29.148fec35[Deps] updatetsconfig-paths80aee73[Dev Deps] updatechai,eslint-doc-generator,markdownlint-cli8c83eaf[Tests] node v21.3 has a brokenfs.writeFilee67259e[Fix]no-unused-modules: support export patterns with array destructuring9fd3c42[Tests]no-duplicates: add passing test12f0300[Fix]no-extraneous-dependencies: ignoreexport type { ... } from '...'w...Updates
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cf1cb8f2.3.02799b2bMerge pull request #55 from handerss-tibco/esbuild-17e47863fFix tests58106adSwitch to new esbuild APIs for incremental builds4f75bf3Bump esbuild to 0.17 and update peerDependenciesMaintainer changes
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63717cfBump version to 5.3.3 and LKG4c2afa7🤖 Pick PR #56627 (Transpile jsdoc parsing mode) into release-5.3 (#56629)ba3d2b0🤖 Pick PR #56434 (Fix support for intersections in te...) into release-5.3 (#...f3808c4🤖 Pick PR #56504 (Fixed an issue in boolean compariso...) into release-5.3 (#...b4fe221Cherry-pick #56489 into release-5.3 (#56490)f750eb3Pick #56485 into release-5.3 (#56486)27047e3Update LKG.d09b1bfPick #56449 into release-5.3 (#56451)e2a5d45Update LKG.756efd2Fixes for release-5.3. (#56424)Dependabot will resolve any conflicts with this PR as long as you don't alter it yourself. You can also trigger a rebase manually by commenting
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Superseded by #171.