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lightningcss 1.33.0: Transform and minify an inline style with Lightning CSS 1.33.0 for a Browserslist-derived Safari 12 target

Amostra verificada para npm lightningcss 1.33.0: Transform and minify an inline style with Lightning CSS 1.33.0 for a Browserslist-derived Safari 12 target.…

sha256:a455d54bcaffa5c281b8a4ec09e90a4b4a92e87c79ee4e8cc2cfaa97c5165127

Esta rede oferece uma coisa: uma amostra que compila. Ela a executou em um sandbox e guardou o recibo assinado. Não classifica nem garante nada — se o mesmo código compila onde você está, ela não mediu. Quantas chaves de assinatura distintas enviaram um recibo de contrato aprovado. Uma é só o autor; mais de uma significa que outra pessoa também o compilou. Uma chave é gerada por conta própria e não tem identidade registrada por trás, então conta chaves, não pessoas. MIT-0

Evidência de execução

O ambiente declarado e as execuções assinadas ficam separados, para você ver exatamente o que esta amostra executou e onde.

Base da evidência
Contrato assinado aprovado
Recibos de verificação
2
Chaves de assinatura que o compilaram
2
Ambiente declarado node 22 linux · musl x64 node 22 javascript npm

Ambientes das execuções de verificação

Ambiente Contrato Etapas Execução
node 22 · linux alpine/x64 · docker ed25519:d91480838ac982c9 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · npm@1		 2026-08-17
node 22 · linux alpine/x64 · docker ed25519:2175b912ea1c23b1 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · npm@1		 2026-08-18

Caso

HOW
Objetivo
Transform and minify an inline style with Lightning CSS 1.33.0 for a Browserslist-derived Safari 12 target
Pacotes
Símbolos
  • lightningcss.browserslistToTargets
  • lightningcss.transformStyleAttribute
Ambiente
node 22
Criado
2026-08-17T01:57:05Z

Contrato

  1. assert browserslistToTargets encodes Safari 12 as the packed target value 12 shifted by 16 bits
  2. assert transformStyleAttribute returns a Buffer containing declarations without selector braces
  3. assert minification merges four margin declarations, reduces rgb red to its keyword, and adds the Safari webkit user-select prefix while retaining the standard declaration

Arquivos

  • csx.json
  • package-lock.json
  • package.json
  • test/contract.cjs

Baixar o artefato de código-fonte (tar.gz)

Código-fonte

csx.json
{"case":{"caseId":"case:sha256:614ecb99356fe0795c7dc77f03e0585d70308e09d6b76f5959d4f94aea595ce4","constraints":{"libc":"musl","moduleSystem":"cjs","runtime":"node"},"contract":["assert browserslistToTargets encodes Safari 12 as the packed target value 12 shifted by 16 bits","assert transformStyleAttribute returns a Buffer containing declarations without selector braces","assert minification merges four margin declarations, reduces rgb red to its keyword, and adds the Safari webkit user-select prefix while retaining the standard declaration"],"goal":"Transform and minify an inline style with Lightning CSS 1.33.0 for a Browserslist-derived Safari 12 target","kind":"HOW","packages":["pkg:npm/lightningcss@1.33.0"],"schemaVersion":1,"symbols":["lightningcss.browserslistToTargets","lightningcss.transformStyleAttribute"]},"contractCommand":["npm","test","--offline"],"environment":{"arch":"x64","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"musl","moduleSystem":"cjs","os":"linux","packageManager":"npm","runtime":"node","runtimeVersion":"22","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/lightningcss@1.33.0"],"schemaVersion":1,"symbols":["lightningcss.browserslistToTargets","lightningcss.transformStyleAttribute"],"verifierAdapter":"npm@1"}
package-lock.json
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}
package.json
{
  "name": "csx-lightningcss-style-api",
  "version": "1.0.0",
  "private": true,
  "type": "commonjs",
  "license": "MIT-0",
  "scripts": {
    "test": "node test/contract.cjs"
  },
  "dependencies": {
    "lightningcss": "1.33.0"
  }
}
test/contract.cjs
const assert = require('node:assert/strict');
const {
  browserslistToTargets,
  transformStyleAttribute,
} = require('lightningcss');

const targets = browserslistToTargets(['safari 12']);
assert.equal(targets.safari, 12 << 16);

const result = transformStyleAttribute({
  code: Buffer.from(
    'margin-top:20px;margin-right:10px;margin-bottom:20px;margin-left:10px;' +
      'user-select:none;color:rgb(255,0,0)',
  ),
  minify: true,
  targets,
});

assert.equal(Buffer.isBuffer(result.code), true);
const css = result.code.toString('utf8');

assert.equal(css.includes('{'), false);
assert.equal(css.includes('}'), false);
assert.equal(css.includes('margin:20px 10px'), true, css);
assert.equal(css.includes('-webkit-user-select:none'), true, css);
assert.equal(css.includes('user-select:none'), true, css);
assert.equal(css.includes('color:red'), true, css);

console.log('CONTRACT PASS: lightningcss transformed a targeted inline style');

Seeder de origem

csx-seed