Support TypeScript experimental decorators on abstract class fields (#3684)
With this release, you can now use TypeScript experimental decorators on abstract class fields. This was silently compiled incorrectly in esbuild 0.19.7 and below, and was an error from esbuild 0.19.8 to esbuild 0.20.1. Code such as the following should now work correctly:
// Original code
const log = (x: any, y: string) => console.log(y)
abstract class Foo { @log abstract foo: string }
new class extends Foo { foo = '' }
// Old output (with --loader=ts --tsconfig-raw={"compilerOptions":{"experimentalDecorators":true}})
const log = (x, y) => console.log(y);
class Foo {
}
new class extends Foo {
foo = "";
}();
// New output (with --loader=ts --tsconfig-raw={"compilerOptions":{"experimentalDecorators":true}})
const log = (x, y) => console.log(y);
class Foo {
}
__decorateClass([
log
], Foo.prototype, "foo", 2);
new class extends Foo {
foo = "";
}();
JSON loader now preserves __proto__ properties (#3700)
Copying JSON source code into a JavaScript file will change its meaning if a JSON object contains the __proto__ key. A literal __proto__ property in a JavaScript object literal sets the prototype of the object instead of adding a property named __proto__, while a literal __proto__ property in a JSON object literal just adds a property named __proto__. With this release, esbuild will now work around this problem by converting JSON to JavaScript with a computed property key in this case:
// Original code
import data from 'data:application/json,{"__proto__":{"fail":true}}'
if (Object.getPrototypeOf(data)?.fail) throw 'fail'
// Old output (with --bundle)
(() => {
// <data:application/json,{"proto":{"fail":true}}>
var json_proto_fail_true_default = { proto: { fail: true } };
// entry.js
if (Object.getPrototypeOf(json_proto_fail_true_default)?.fail)
throw "fail";
})();
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 5 updates:
7.1.0
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7.1.0
7.3.0
0.14.54
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Updates
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from 7.1.0 to 7.3.0Release notes
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chore(release): publish 7.3.0d2995df
fix(eslint-plugin): [no-unnecessary-type-assertion] fix false negative for co...2869c68
feat(eslint-plugin): [prefer-reduce-type-parameter] supports tuple, union, in...d830364
test(eslint-plugin): [no-unnecessary-type-assertion] add tests with noUncheck...04e32d6
fix(eslint-plugin): [class-literal-property-style] ignore property assigned i...612875b
fix(eslint-plugin): [explicit-function-return-type, explicit-module-boundary-...da006b1
fix(eslint-plugin): [ban-ts-comment] more accurate handling of multiline comm...71bfb7c
chore: fix ast-spec type import snapshot errors (#8699)fb18de9
fix(eslint-plugin): [no-unused-expressions] false negatives when using assert...f7323be
fix(eslint-plugin): [no-unnecessary-qualifier] handle merge namespace with en...Updates
@typescript-eslint/parser
from 7.1.0 to 7.3.0Release notes
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chore(release): publish 7.3.0883f220
fix: correctengines.node
constraints inpackage.json
(#8671)95cf139
chore(release): publish 7.2.088b7463
chore(release): publish 7.1.1Updates
esbuild
from 0.14.54 to 0.20.2Release notes
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Commits
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publish 0.20.2 to npm4780075
fix #3700: json loader preserves__proto__
keys30bed2d
better errors for invalid js decorator syntax300eeb7
ts: allow non-null assertions in js decorators4d997d9
fix #3698: yarn pnp edge case withtsconfig.json
cf42954
resolver: improve some debug loggingb0765ae
fix some lintsdfa6206
fix some comments (closes #3683)ae5cc17
fix #3684:abstract
experimental decoratorsc809af0
fix #2388: allow consuming types without dom types (#3679)Updates
karma-esbuild
from 2.2.5 to 2.3.0Release notes
Sourced from karma-esbuild's releases.
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2.3.02799b2b
Merge pull request #55 from handerss-tibco/esbuild-17e47863f
Fix tests58106ad
Switch to new esbuild APIs for incremental builds4f75bf3
Bump esbuild to 0.17 and update peerDependenciesMaintainer changes
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Updates
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from 5.3.3 to 5.4.2Release notes
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Commits
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Bump version to 5.4.2 and LKG992c705
Add release pipeline to release-5.4 (#57513)db6b2a9
Bump version to 5.4.1-rc and LKGbd4f51c
Update LKG8a1f79d
Merge remote-tracking branch 'origin/main' into release-5.4d04e348
Improve apparent type of mapped types (#57122)86a1663
Update package-lock.jsonfeb57c2
Instantiate earlier inferred constraints in conditional types (#57362)91e67ff
fix(57392): using is not suggested as a keyword (#57394)29c0024
Avoid creating rest elements witherrorType
whenany
is spread (#57116)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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