This release fixes more edge cases where the new comment preservation behavior that was added in 0.16.14 could introduce syntax errors. Specifically:
x = () => (/* comment */ {})
for ((/* comment */ let).x of y) ;
function *f() { yield (/* comment */class {}) }
These cases caused esbuild to generate code with a syntax error in version 0.16.14 or above. These bugs have now been fixed.
v0.16.16
Fix a regression caused by comment preservation (#2805)
The new comment preservation behavior that was added in 0.16.14 introduced a regression where comments in certain locations could cause esbuild to omit certain necessary parentheses in the output. The outermost parentheses were incorrectly removed for the following syntax forms, which then introduced syntax errors:
(/* comment */ { x: 0 }).x;
(/* comment */ function () { })();
(/* comment */ class { }).prototype;
This regression has been fixed.
v0.16.15
Add format to input files in the JSON metafile data
When --metafile is enabled, input files may now have an additional format field that indicates the export format used by this file. When present, the value will either be cjs for CommonJS-style exports or esm for ESM-style exports. This can be useful in bundle analysis.
For example, esbuild's new Bundle Size Analyzer now uses this information to visualize whether ESM or CommonJS was used for each directory and file of source code (click on the CJS/ESM bar at the top).
This information is helpful when trying to reduce the size of your bundle. Using the ESM variant of a dependency instead of the CommonJS variant always results in a faster and smaller bundle because it omits CommonJS wrappers, and also may result in better tree-shaking as it allows esbuild to perform tree-shaking at the statement level instead of the module level.
Fix a bundling edge case with dynamic import (#2793)
This release fixes a bug where esbuild's bundler could produce incorrect output. The problematic edge case involves the entry point importing itself using a dynamic import() expression in an imported file, like this:
This release fixes more edge cases where the new comment preservation behavior that was added in 0.16.14 could introduce syntax errors. Specifically:
x = () => (/* comment */ {})
for ((/* comment */ let).x of y) ;
function *f() { yield (/* comment */class {}) }
These cases caused esbuild to generate code with a syntax error in version 0.16.14 or above. These bugs have now been fixed.
0.16.16
Fix a regression caused by comment preservation (#2805)
The new comment preservation behavior that was added in 0.16.14 introduced a regression where comments in certain locations could cause esbuild to omit certain necessary parentheses in the output. The outermost parentheses were incorrectly removed for the following syntax forms, which then introduced syntax errors:
(/* comment */ { x: 0 }).x;
(/* comment */ function () { })();
(/* comment */ class { }).prototype;
This regression has been fixed.
0.16.15
Add format to input files in the JSON metafile data
When --metafile is enabled, input files may now have an additional format field that indicates the export format used by this file. When present, the value will either be cjs for CommonJS-style exports or esm for ESM-style exports. This can be useful in bundle analysis.
For example, esbuild's new Bundle Size Analyzer now uses this information to visualize whether ESM or CommonJS was used for each directory and file of source code (click on the CJS/ESM bar at the top).
This information is helpful when trying to reduce the size of your bundle. Using the ESM variant of a dependency instead of the CommonJS variant always results in a faster and smaller bundle because it omits CommonJS wrappers, and also may result in better tree-shaking as it allows esbuild to perform tree-shaking at the statement level instead of the module level.
Fix a bundling edge case with dynamic import (#2793)
This release fixes a bug where esbuild's bundler could produce incorrect output. The problematic edge case involves the entry point importing itself using a dynamic import() expression in an imported file, like this:
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Bumps esbuild from 0.14.54 to 0.16.17.
Release notes
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Changelog
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Commits
d751dfb
publish 0.16.17 to npm6346398
fix #2814: additional comment-related regressionse4cf1b3
workaround for #2785 and #2812edede3c
publish 0.16.16 to npm7d89263
fix #2805: parentheses for commented expressions9df9a65
only register plugin callbacks if needed33a5159
publish 0.16.15 to npmb3b06c7
fix #2798: make type declarations work in TS v3.5+dad3e64
fix #2793: bundling edge case with dynamic import6398f81
add"format"
to inputs in metafileDependabot 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
@dependabot rebase
.Dependabot commands and options
You can trigger Dependabot actions by commenting on this PR: - `@dependabot rebase` will rebase this PR - `@dependabot recreate` will recreate this PR, overwriting any edits that have been made to it - `@dependabot merge` will merge this PR after your CI passes on it - `@dependabot squash and merge` will squash and merge this PR after your CI passes on it - `@dependabot cancel merge` will cancel a previously requested merge and block automerging - `@dependabot reopen` will reopen this PR if it is closed - `@dependabot close` will close this PR and stop Dependabot recreating it. You can achieve the same result by closing it manually - `@dependabot ignore this major version` will close this PR and stop Dependabot creating any more for this major version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this minor version` will close this PR and stop Dependabot creating any more for this minor version (unless you reopen the PR or upgrade to it yourself) - `@dependabot ignore this dependency` will close this PR and stop Dependabot creating any more for this dependency (unless you reopen the PR or upgrade to it yourself)