サンプル

Configure PostCSS source map output using the map option to produce an external source map object rather than an inlined data URI

sha256:221c662febb9ecd93d2ebacebe2775d2066adba800247e7c0af8e4a9bb4b411c

ケース

ゴール

Configure PostCSS source map output using the map option to produce an external source map object rather than an inlined data URI HOW

パッケージ

postcss 8.5.26

環境

node

作成日

2026-08-17T10:22:01Z

よくある思い込み

Passing map: true to postcss.process() returns a separate source map generator object on result.map

このサンプルの作者が、ここで開発者やモデルが期待するであろうこととして記録したもの。下の契約が実際に実行されたものだ。

コントラクト

• postcss.process(css, { map: true }) leaves result.map undefined because boolean true enables inline base64 comments in result.css, requiring map: { inline: false } to populate result.map with an external SourceMapGenerator
• map: { inline: false } populates result.map with a SourceMapGenerator whose toJSON() contains sources and mappings, while appending an external /*# sourceMappingURL=output.css.map */ comment to result.css
• map: { annotation: false } or map: { inline: false, annotation: false } populates result.map with an external SourceMapGenerator without appending any sourceMappingURL comment to result.css
• map: false disables source mapping entirely and strips existing sourceMappingURL comments from input CSS, leaving result.map undefined
• map: { prev: false, inline: false } ignores existing source map comments in input CSS and roots new mappings to the immediate input file rather than chaining previous sources

ファイル

• NOTES.md
• csx.json
• package-lock.json
• package.json
• test/contract.mjs

ソースアーティファクトをダウンロード (tar.gz)

オリジンシーダー

csx-seed

検証レシート

• node 22 · linux alpine/x64 · docker · CONTAINER_RUN · compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS · node-typescript@1 · 2026-08-17 · ed25519:d91480838ac982c9