Bump esbuild from 0.15.15 to 0.15.16

[dependabot[bot]]

Bumps esbuild from 0.15.15 to 0.15.16.

Release notes

Sourced from esbuild's releases.

v0.15.16

• Add a package alias feature (#2191)

  With this release, you can now easily substitute one package for another at build time with the new alias feature. For example, --alias:oldpkg=newpkg replaces all imports of oldpkg with newpkg. One use case for this is easily replacing a node-only package with a browser-friendly package in 3rd-party code that you don't control. These new substitutions happen first before all of esbuild's existing path resolution logic.

  Note that when an import path is substituted using an alias, the resulting import path is resolved in the working directory instead of in the directory containing the source file with the import path. If needed, the working directory can be set with the cd command when using the CLI or with the absWorkingDir setting when using the JS or Go APIs.

• Fix crash when pretty-printing minified JSX with object spread of object literal with computed property (#2697)

  JSX elements are translated to JavaScript function calls and JSX element attributes are translated to properties on a JavaScript object literal. These properties are always either strings (e.g. in <x y />, y is a string) or an object spread (e.g. in <x {...y} />, y is an object spread) because JSX doesn't provide syntax for directly passing a computed property as a JSX attribute. However, esbuild's minifier has a rule that tries to inline object spread with an inline object literal in JavaScript. For example, x = { ...{ y } } is minified to x={y} when minification is enabled. This means that there is a way to generate a non-string non-spread JSX attribute in esbuild's internal representation. One example is with <x {...{ [y]: z }} />. When minification is enabled, esbuild's internal representation of this is something like <x [y]={z} /> due to object spread inlining, which is not valid JSX syntax. If this internal representation is then pretty-printed as JSX using --minify --jsx=preserve, esbuild previously crashed when trying to print this invalid syntax. With this release, esbuild will now print <x {...{[y]:z}}/> in this scenario instead of crashing.

Changelog

Sourced from esbuild's changelog.

0.15.16

• Add a package alias feature (#2191)

  With this release, you can now easily substitute one package for another at build time with the new alias feature. For example, --alias:oldpkg=newpkg replaces all imports of oldpkg with newpkg. One use case for this is easily replacing a node-only package with a browser-friendly package in 3rd-party code that you don't control. These new substitutions happen first before all of esbuild's existing path resolution logic.

  Note that when an import path is substituted using an alias, the resulting import path is resolved in the working directory instead of in the directory containing the source file with the import path. If needed, the working directory can be set with the cd command when using the CLI or with the absWorkingDir setting when using the JS or Go APIs.

• Fix crash when pretty-printing minified JSX with object spread of object literal with computed property (#2697)

  JSX elements are translated to JavaScript function calls and JSX element attributes are translated to properties on a JavaScript object literal. These properties are always either strings (e.g. in <x y />, y is a string) or an object spread (e.g. in <x {...y} />, y is an object spread) because JSX doesn't provide syntax for directly passing a computed property as a JSX attribute. However, esbuild's minifier has a rule that tries to inline object spread with an inline object literal in JavaScript. For example, x = { ...{ y } } is minified to x={y} when minification is enabled. This means that there is a way to generate a non-string non-spread JSX attribute in esbuild's internal representation. One example is with <x {...{ [y]: z }} />. When minification is enabled, esbuild's internal representation of this is something like <x [y]={z} /> due to object spread inlining, which is not valid JSX syntax. If this internal representation is then pretty-printed as JSX using --minify --jsx=preserve, esbuild previously crashed when trying to print this invalid syntax. With this release, esbuild will now print <x {...{[y]:z}}/> in this scenario instead of crashing.

Commits

• 50ae05b publish 0.15.16 to npm
• d8d7362 alias: more tests, allow relative substitutions
• a7eb789 fix #2191: add a path alias feature
• 4e9f9c1 fix indentation for some tests
• 89e4520 fix #2697: jsx + spread + computed property crash
• ef348a3 jsx: pretty-print single-line JSX elements
• See full diff in compare view

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Superseded by #233.