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This PR contains the following updates:
0.19.8
->0.19.11
8.54.0
->8.56.0
2.29.0
->2.29.1
5.7.2
->5.7.3
Release Notes
evanw/esbuild (esbuild)
v0.19.11
Compare Source
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 withuseDefineForClassFields
set tofalse
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 tosuper()
(sincesuper()
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: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:
Minifier: consider properties named using known
Symbol
instances to be side-effect free (#3561)Many things in JavaScript can have side effects including property accesses and ToString operations, so using a symbol such as
Symbol.iterator
as a computed property name is not obviously side-effect free. This release adds a special case for knownSymbol
instances so that they are considered side-effect free when used as property names. For example, this class declaration will now be considered side-effect free:Provide the
stop()
API in node to exit esbuild's child process (#3558)You can now call
stop()
in esbuild's node API to exit esbuild's child process to reclaim the resources used. It only makes sense to do this for a long-lived node process when you know you will no longer be making any more esbuild API calls. It is not necessary to call this to allow node to exit, and it's advantageous to not call this in between calls to esbuild's API as sharing a single long-lived esbuild child process is more efficient than re-creating a new esbuild child process for every API call. This API call used to exist but was removed in version 0.9.0. This release adds it back due to a user request.v0.19.10
Compare Source
Fix glob imports in TypeScript files (#3319)
This release fixes a problem where bundling a TypeScript file containing a glob import could emit a call to a helper function that doesn't exist. The problem happened because esbuild's TypeScript transformation removes unused imports (which is required for correctness, as they may be type-only imports) and esbuild's glob import transformation wasn't correctly marking the imported helper function as used. This wasn't caught earlier because most of esbuild's glob import tests were written in JavaScript, not in TypeScript.
Fix
require()
glob imports with bundling disabled (#3546)Previously
require()
calls containing glob imports were incorrectly transformed when bundling was disabled. All glob imports should only be transformed when bundling is enabled. This bug has been fixed.Fix a panic when transforming optional chaining with
define
(#3551, #3554)This release fixes a case where esbuild could crash with a panic, which was triggered by using
define
to replace an expression containing an optional chain. Here is an example:This fix was contributed by @hi-ogawa.
Work around a bug in node's CommonJS export name detector (#3544)
The export names of a CommonJS module are dynamically-determined at run time because CommonJS exports are properties on a mutable object. But the export names of an ES module are statically-determined at module instantiation time by using
import
andexport
syntax and cannot be changed at run time.When you import a CommonJS module into an ES module in node, node scans over the source code to attempt to detect the set of export names that the CommonJS module will end up using. That statically-determined set of names is used as the set of names that the ES module is allowed to import at module instantiation time. However, this scan appears to have bugs (or at least, can cause false positives) because it doesn't appear to do any scope analysis. Node will incorrectly consider the module to export something even if the assignment is done to a local variable instead of to the module-level
exports
object. For example:You can see that node incorrectly thinks the file
confuseNode.js
has an export callednotAnExport
when that file is loaded in an ES module context:To avoid this, esbuild will now rename local variables that use the names
exports
andmodule
when generating CommonJS output for thenode
platform.Fix the return value of esbuild's
super()
shim (#3538)Some people write
constructor
methods that use the return value ofsuper()
instead of usingthis
. This isn't too common because TypeScript doesn't let you do that but it can come up when writing JavaScript. Previously esbuild's class lowering transform incorrectly transformed the return value ofsuper()
intoundefined
. With this release, the return value ofsuper()
will now bethis
instead:Terminate the Go GC when esbuild's
stop()
API is called (#3552)If you use esbuild with WebAssembly and pass the
worker: false
flag toesbuild.initialize()
, then esbuild will run the WebAssembly module on the main thread. If you do this within a Deno test and that test callsesbuild.stop()
to clean up esbuild's resources, Deno may complain that asetTimeout()
call lasted past the end of the test. This happens when the Go is in the middle of a garbage collection pass and has scheduled additional ongoing garbage collection work. Normally callingesbuild.stop()
will terminate the web worker that the WebAssembly module runs in, which will terminate the Go GC, but that doesn't happen if you disable the web worker withworker: false
.With this release, esbuild will now attempt to terminate the Go GC in this edge case by calling
clearTimeout()
on these pending timeouts.Apply
/* @​__NO_SIDE_EFFECTS__ */
on tagged template literals (#3511)Tagged template literals that reference functions annotated with a
@__NO_SIDE_EFFECTS__
comment are now able to be removed via tree-shaking if the result is unused. This is a convention from Rollup. Here is an example:Note that this feature currently only works within a single file, so it's not especially useful. This feature does not yet work across separate files. I still recommend using
@__PURE__
annotations instead of this feature, as they have wider tooling support. The drawback of course is that@__PURE__
annotations need to be added at each call site, not at the declaration, and for non-call expressions such as template literals you need to wrap the expression in an IIFE (immediately-invoked function expression) to create a call expression to apply the@__PURE__
annotation to.Publish builds for IBM AIX PowerPC 64-bit (#3549)
This release publishes a binary executable to npm for IBM AIX PowerPC 64-bit, which means that in theory esbuild can now be installed in that environment with
npm install esbuild
. This hasn't actually been tested yet. If you have access to such a system, it would be helpful to confirm whether or not doing this actually works.v0.19.9
Compare Source
Add support for transforming new CSS gradient syntax for older browsers
The specification called CSS Images Module Level 4 introduces new CSS gradient syntax for customizing how the browser interpolates colors in between color stops. You can now control the color space that the interpolation happens in as well as (for "polar" color spaces) control whether hue angle interpolation happens clockwise or counterclockwise. You can read more about this in Mozilla's blog post about new CSS gradient features.
With this release, esbuild will now automatically transform this syntax for older browsers in the
target
list. For example, here's a gradient that should appear as a rainbow in a browser that supports this new syntax:You can now use this syntax in your CSS source code and esbuild will automatically convert it to an equivalent gradient for older browsers. In addition, esbuild will now also transform "double position" and "transition hint" syntax for older browsers as appropriate:
You can see visual examples of these new syntax features by looking at esbuild's gradient transformation tests.
If necessary, esbuild will construct a new gradient that approximates the original gradient by recursively splitting the interval in between color stops until the approximation error is within a small threshold. That is why the above output CSS contains many more color stops than the input CSS.
Note that esbuild deliberately replaces the original gradient with the approximation instead of inserting the approximation before the original gradient as a fallback. The latest version of Firefox has multiple gradient rendering bugs (including incorrect interpolation of partially-transparent colors and interpolating non-sRGB colors using the incorrect color space). If esbuild didn't replace the original gradient, then Firefox would use the original gradient instead of the fallback the appearance would be incorrect in Firefox. In other words, the latest version of Firefox supports modern gradient syntax but interprets it incorrectly.
Add support for
color()
,lab()
,lch()
,oklab()
,oklch()
, andhwb()
in CSSCSS has recently added lots of new ways of specifying colors. You can read more about this in Chrome's blog post about CSS color spaces.
This release adds support for minifying colors that use the
color()
,lab()
,lch()
,oklab()
,oklch()
, orhwb()
syntax and/or transforming these colors for browsers that don't support it yet:As you can see, colors outside of the sRGB color space such as
color(display-p3 1 0 0)
are mapped back into the sRGB gamut and inserted as a fallback for browsers that don't support the new color syntax.Allow empty type parameter lists in certain cases (#3512)
TypeScript allows interface declarations and type aliases to have empty type parameter lists. Previously esbuild didn't handle this edge case but with this release, esbuild will now parse this syntax:
This fix was contributed by @magic-akari.
eslint/eslint (eslint)
v8.56.0
Compare Source
Features
0dd9704
feat: Support custom severity when reporting unused disable directives (#17212) (Bryan Mishkin)31a7e3f
feat: fix no-restricted-properties false negatives with unknown objects (#17818) (Arka Pratim Chaudhuri)Bug Fixes
7d5e5f6
fix:TypeError: fs.exists is not a function
on read-only file system (#17846) (Francesco Trotta)74739c8
fix: suggestion with invalid syntax in no-promise-executor-return rule (#17812) (Bryan Mishkin)Documentation
9007719
docs: update link in ways-to-extend.md (#17839) (Amel SELMANE)3a22236
docs: Update README (GitHub Actions Bot)54c3ca6
docs: fix migration-guide example (#17829) (Tanuj Kanti)4391b71
docs: check config comments in rule examples (#17815) (Francesco Trotta)fd28363
docs: remove mention about ESLint stylistic rules in readme (#17810) (Zwyx)48ed5a6
docs: Update README (GitHub Actions Bot)Chores
ba6af85
chore: upgrade @eslint/js@8.56.0 (#17864) (Milos Djermanovic)60a531a
chore: package.json update for @eslint/js release (Jenkins)ba87a06
chore: update dependency markdownlint to ^0.32.0 (#17783) (renovate[bot])9271d10
chore: add GitHub issue template for docs issues (#17845) (Josh Goldberg ✨)70a686b
chore: Convert rule tests to FlatRuleTester (#17819) (Nicholas C. Zakas)f3a599d
chore: upgrade eslint-plugin-unicorn to v49.0.0 (#17837) (唯然)905d4b7
chore: upgrade eslint-plugin-eslint-plugin v5.2.1 (#17838) (唯然)4d7c3ce
chore: update eslint-plugin-n v16.4.0 (#17836) (唯然)fd0c60c
ci: unpin Node.js 21.2.0 (#17821) (Francesco Trotta)v8.55.0
Compare Source
Features
8c9e6c1
feat: importNamePattern option in no-restricted-imports (#17721) (Tanuj Kanti)Documentation
83ece2a
docs: fix typo--rules
->--rule
(#17806) (OKURA Masafumi)fffca5c
docs: remove "Open in Playground" buttons for removed rules (#17791) (Francesco Trotta)a6d9442
docs: fix correct/incorrect examples of rules (#17789) (Tanuj Kanti)383e999
docs: update and fix examples forno-unused-vars
(#17788) (Tanuj Kanti)5a8efd5
docs: add specific stylistic rule for each deprecated rule (#17778) (Etienne)Chores
eb8950c
chore: upgrade @eslint/js@8.55.0 (#17811) (Milos Djermanovic)93df384
chore: package.json update for @eslint/js release (Jenkins)fe4b954
chore: upgrade @eslint/eslintrc@2.1.4 (#17799) (Milos Djermanovic)bd8911d
ci: pin Node.js 21.2.0 (#17809) (Milos Djermanovic)b29a16b
chore: fix severalcli
tests to run in the intended flat config mode (#17797) (Milos Djermanovic)de165c1
chore: remove unused config-extends fixtures (#17781) (Milos Djermanovic)d4304b8
chore: remove formatting/stylistic rules from new rule templates (#17780) (Francesco Trotta)21024fe
chore: check rule examples for syntax errors (#17718) (Francesco Trotta)import-js/eslint-plugin-import (eslint-plugin-import)
v2.29.1
Compare Source
Fixed
no-extraneous-dependencies
]: ignoreexport type { ... } from '...'
whenincludeTypes
isfalse
([#2919], thanks [@Pandemic1617])no-unused-modules
]: support export patterns with array destructuring ([#2930], thanks [@ljharb])tsconfig-paths
([#2447], thanks [@domdomegg])ljharb/tape (tape)
v5.7.3
Compare Source
Commits
Test
: cleanerat
logicaf4d109
intercept
: give a proper error message with a readonly Symbol property4640a91
getHarness
: avoid mutatingopts
, account for only one internal callsite forcreateExitHarness
19cfc8f
4a57fbe
createHarness
: when noconf
is provided,only
should not throw8a1cccc
bin/tape
: ignore options on windowsa2b74f9
_assert
: avoid reassigning argumentsdc64c08
Results
: usethis
instead ofself
5f831b4
new
it78fd0d6
aud
,npmignore
ceabd99
npm test
on windowsbcf6ce7
9cbae8a
Results
createStream
: clean up_push
handler878a500
Test
: a more precise checkf6d30cf
object.assign
201e650
d1987c0
engines
check since bin/tape and the rest of the lib conflict19af506
deep-equal
5d26485
mock-property
d90c29a
sideEffects
flag85f593b
Configuration
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♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.
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