CodeSampleX

示例

@babel/plugin-transform-duplicate-named-capturing-groups-regex 7.29.7: default

已验证示例 — npm @babel/plugin-transform-duplicate-named-capturing-groups-regex 7.29.7: default. contract 在 node 22 · linux alpine/x64 · docker 上运行并通过.

sha256:1d3526a68485862a282142be399a831808e180fd94fd4d0c5167da28b7c213ec

本网络只提供一件事：能构建的样本。它在沙箱中运行并保留签名回执。它不评级、不担保——同样的代码能否在你的环境构建，它没有测量过。 提交了通过的契约回执的不同签名密钥数量。为 1 表示只有作者；大于 1 表示还有其他人构建过。密钥是自行生成的，背后没有注册身份，因此计的是密钥而非人。 MIT-0

执行证据

声明的环境与签名的运行分开呈现，你可以看到这个样本究竟运行了什么、在哪里运行。

证据依据
签名契约通过
验证回执
1
构建过它的签名密钥
1
声明的环境 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

验证运行环境

环境 契约 阶段 运行日期
node 22 · linux alpine/x64 · docker ed25519:c1973797be207ac4 PASS compile:SKIPPED · contract:PASS · load:PASS · resolve:PASS
CONTAINER_RUN · node-typescript@1node:22-alpine@sha256:c610fcdfb1d5…		 2026-08-27

案例

HOW
目标
verify @babel/plugin-transform-duplicate-named-capturing-groups-regex.default in pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7
包
符号
  • @babel/plugin-transform-duplicate-named-capturing-groups-regex.default
环境
node 22.23.2
创建时间
2026-08-27T12:07:56Z

契约

  1. Plugin default export is a function factory declaring Babel version compatibility
  2. Plugin factory returns an object named transform-duplicate-named-capturing-groups-regex with manipulateOptions, pre, and visitor.RegExpLiteral
  3. Plugin factory throws an Error when runtime option is non-boolean
  4. Plugin pre() sets duplicateNamedCaptureGroups feature flag and runtime options on Babel file context
  5. RegExpLiteral visitor compiles duplicate named capturing groups to numbered groups and wraps with wrapRegExp helper when runtime is true
  6. RegExpLiteral visitor compiles duplicate named capturing groups without wrapRegExp when runtime is false
  7. RegExpLiteral visitor skips wrapRegExp helper wrapping when RegExp is used in a test method expression
  8. RegExpLiteral visitor leaves regular expressions without duplicate named groups unchanged

文件

  • PROMPT.md
  • csx.json
  • package-lock.json
  • package.json
  • spec.json
  • src/index.mjs
  • test/contract.mjs

下载源代码构件 (tar.gz)

源代码

PROMPT.md
Clean-room public code sample — generation instructions

Write a brand-new, minimal, self-contained code sample in this clean-room directory.
Do not copy, paraphrase, or reference any existing project source. Work only from this spec.

A csx.json manifest scaffold already exists. Do not recreate it from memory. Preserve its case.goal, packages and symbols; fill its empty case.contract with exact assertions and correct its environment, commands and verifierAdapter for the files you generate.

Goal: verify @babel/plugin-transform-duplicate-named-capturing-groups-regex.default in pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7
Demonstrate these symbols/APIs:
  - @babel/plugin-transform-duplicate-named-capturing-groups-regex.default
Constraints:
  - executionContext: node
Required runtime conditions:
  - ecosystem: npm
  - language: javascript
  - moduleSystem: esm
  - packageManager: npm@10.9.8
  - runtime: node@22.23.2

Rules:
  - One focused purpose; the smallest project that proves the goal.
  - Include a contract test (test/contract.*) that runs OFFLINE and exits 0 exactly when the goal behavior works.
  - Pin every dependency with a lockfile so resolution is reproducible.
  - No secrets, credentials, or tokens. No real URLs (only example.com or localhost). No absolute paths.
  - No personal names, emails, company names, or project identifiers of any kind.
  - No binaries and no generated output (node_modules, dist, target, venv, .git, .env).
  - Keep it under 200 files and 256KB packed.
csx.json
{"case":{"caseId":"case:sha256:eec49828a2272cd8a5144107a664bf1a760788ced6bb2a0d0d47dc0f3dce8c06","constraints":{"executionContext":"node"},"contract":["Plugin default export is a function factory declaring Babel version compatibility","Plugin factory returns an object named transform-duplicate-named-capturing-groups-regex with manipulateOptions, pre, and visitor.RegExpLiteral","Plugin factory throws an Error when runtime option is non-boolean","Plugin pre() sets duplicateNamedCaptureGroups feature flag and runtime options on Babel file context","RegExpLiteral visitor compiles duplicate named capturing groups to numbered groups and wraps with wrapRegExp helper when runtime is true","RegExpLiteral visitor compiles duplicate named capturing groups without wrapRegExp when runtime is false","RegExpLiteral visitor skips wrapRegExp helper wrapping when RegExp is used in a test method expression","RegExpLiteral visitor leaves regular expressions without duplicate named groups unchanged"],"goal":"verify @babel/plugin-transform-duplicate-named-capturing-groups-regex.default in pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7","kind":"HOW","packages":["pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7"],"schemaVersion":1,"symbols":["@babel/plugin-transform-duplicate-named-capturing-groups-regex.default"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","executionContext":"node","language":"javascript","libc":"glibc","libcVersion":"2.39","moduleSystem":"esm","os":"linux","osVersionBucket":"24","packageManager":"npm","packageManagerVersion":"10.9.8","runtime":"node","runtimeVersion":"22.23.2","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7"],"schemaVersion":1,"subject":"pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7","symbols":["@babel/plugin-transform-duplicate-named-capturing-groups-regex.default"],"verifierAdapter":"node-typescript@1"}
package-lock.json
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package.json
{
  "name": "sample-babel-plugin-transform-duplicate-named-capturing-groups-regex",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "@babel/plugin-transform-duplicate-named-capturing-groups-regex": "7.29.7"
  }
}
spec.json
{
  "schemaVersion": 1,
  "goal": "verify @babel/plugin-transform-duplicate-named-capturing-groups-regex.default in pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7"
  ],
  "symbols": [
    "@babel/plugin-transform-duplicate-named-capturing-groups-regex.default"
  ],
  "constraints": {
    "executionContext": "node"
  },
  "runtimeConditions": {
    "ecosystem": "npm",
    "language": "javascript",
    "moduleSystem": "esm",
    "packageManager": "npm@10.9.8",
    "runtime": "node@22.23.2"
  }
}
src/index.mjs
import pluginModule from "@babel/plugin-transform-duplicate-named-capturing-groups-regex";

export const duplicateNamedCapturingGroupsRegexPlugin =
  typeof pluginModule === "function"
    ? pluginModule
    : pluginModule.default || pluginModule;

export function instantiatePlugin(api = {}, options = {}) {
  const normalizedApi = {
    assertVersion: (range) => {
      if (typeof api.assertVersion === "function") {
        api.assertVersion(range);
      }
    },
    ...api
  };
  return duplicateNamedCapturingGroupsRegexPlugin(normalizedApi, options);
}

export function createFileContext(initialEntries = {}) {
  const store = new Map(Object.entries(initialEntries));
  return {
    get(key) {
      return store.get(key);
    },
    set(key, value) {
      store.set(key, value);
    },
    has(key) {
      return store.has(key);
    },
    _store: store
  };
}

export function applyPluginPre(pluginInstance, file) {
  if (typeof pluginInstance?.pre === "function") {
    pluginInstance.pre.call({ file });
  }
}

export function transformRegExpLiteral(pluginInstance, file, path, helpers = {}) {
  if (!pluginInstance?.visitor?.RegExpLiteral) {
    throw new Error("Invalid plugin instance: missing visitor.RegExpLiteral");
  }
  const thisContext = {
    file,
    addHelper: (name) => {
      if (typeof helpers.addHelper === "function") {
        return helpers.addHelper(name);
      }
      return { type: "Identifier", name };
    }
  };
  return pluginInstance.visitor.RegExpLiteral.call(thisContext, path);
}

export function simulateTransformation({
  pattern,
  flags = "",
  options = {},
  isTest = false,
  api = {}
} = {}) {
  const instance = instantiatePlugin(api, options);
  const file = createFileContext();
  applyPluginPre(instance, file);

  const node = {
    type: "RegExpLiteral",
    pattern,
    flags
  };

  let replacedNode = null;
  const path = {
    node,
    parentPath: {
      isMemberExpression: ({ object, computed }) =>
        isTest && object === node && computed === false,
      get: (prop) => ({
        isIdentifier: ({ name }) => isTest && prop === "property" && name === "test"
      })
    },
    replaceWith(newNode) {
      replacedNode = newNode;
    }
  };

  transformRegExpLiteral(instance, file, path);

  return {
    instance,
    file,
    node,
    replacedNode,
    finalPattern: node.pattern,
    finalFlags: node.flags
  };
}
test/contract.mjs
import assert from "node:assert/strict";
import pluginModule from "@babel/plugin-transform-duplicate-named-capturing-groups-regex";
import {
  duplicateNamedCapturingGroupsRegexPlugin,
  instantiatePlugin,
  createFileContext,
  applyPluginPre,
  transformRegExpLiteral,
  simulateTransformation
} from "../src/index.mjs";

const rawPlugin =
  typeof pluginModule === "function"
    ? pluginModule
    : pluginModule.default || pluginModule;

// Contract 1: Plugin default export is a function factory declaring Babel version compatibility
{
  assert.equal(typeof duplicateNamedCapturingGroupsRegexPlugin, "function");
  assert.equal(typeof rawPlugin, "function");

  let assertedVersion = null;
  const api = {
    assertVersion: (range) => {
      assertedVersion = range;
    }
  };
  const pluginInstance = rawPlugin(api, {});
  assert.equal(assertedVersion, "^7.19.0 || ^8.0.0-0 || >8.0.0-alpha <8.0.0-beta");
  assert.ok(pluginInstance);
}

// Contract 2: Plugin factory returns an object named transform-duplicate-named-capturing-groups-regex with manipulateOptions, pre, and visitor.RegExpLiteral
{
  const api = {
    assertVersion: () => {}
  };
  const pluginInstance = instantiatePlugin(api, {});
  assert.equal(pluginInstance.name, "transform-duplicate-named-capturing-groups-regex");
  assert.equal(typeof pluginInstance.manipulateOptions, "function");
  assert.equal(typeof pluginInstance.pre, "function");
  assert.ok(pluginInstance.visitor);
  assert.equal(typeof pluginInstance.visitor.RegExpLiteral, "function");
}

// Contract 3: Plugin factory throws an Error when runtime option is non-boolean
{
  const api = {
    assertVersion: () => {}
  };
  assert.throws(
    () => instantiatePlugin(api, { runtime: "invalid" }),
    (err) => {
      assert.equal(err.message, "The 'runtime' option must be boolean");
      return true;
    }
  );
}

// Contract 4: Plugin pre() sets duplicateNamedCaptureGroups feature flag and runtime options on Babel file context
{
  const api = {
    assertVersion: () => {}
  };
  const pluginInstance = instantiatePlugin(api, { runtime: false });
  const file = createFileContext();
  applyPluginPre(pluginInstance, file);

  const featuresKey = "@babel/plugin-regexp-features/featuresKey";
  const runtimeKey = "@babel/plugin-regexp-features/runtimeKey";
  const versionKey = "@babel/plugin-regexp-features/version";

  assert.ok(file.has(featuresKey));
  assert.equal(file.get(runtimeKey), false);
  assert.equal(file.get(versionKey), "7.29.7");
}

// Contract 5: RegExpLiteral visitor compiles duplicate named capturing groups to numbered groups and wraps with wrapRegExp helper when runtime is true
{
  const result = simulateTransformation({
    pattern: "(?<year>\\d{4})-\\d{2}|\\d{2}-(?<year>\\d{4})",
    flags: "",
    options: { runtime: true }
  });

  assert.equal(result.finalPattern, "(\\d{4})-\\d{2}|\\d{2}-(\\d{4})");
  assert.ok(result.replacedNode);
  assert.equal(result.replacedNode.type, "CallExpression");
  assert.equal(result.replacedNode.callee?.name, "wrapRegExp");

  const [regexArg, mappingArg] = result.replacedNode.arguments;
  assert.equal(regexArg.type, "RegExpLiteral");
  assert.equal(regexArg.pattern, "(\\d{4})-\\d{2}|\\d{2}-(\\d{4})");
  assert.equal(mappingArg.type, "ObjectExpression");
  assert.equal(mappingArg.properties[0].key.name, "year");
  assert.deepEqual(
    mappingArg.properties[0].value.elements.map((el) => el.value),
    [1, 2]
  );
}

// Contract 6: RegExpLiteral visitor compiles duplicate named capturing groups without wrapRegExp when runtime is false
{
  const result = simulateTransformation({
    pattern: "(?<year>\\d{4})-\\d{2}|\\d{2}-(?<year>\\d{4})",
    flags: "",
    options: { runtime: false }
  });

  assert.equal(result.finalPattern, "(\\d{4})-\\d{2}|\\d{2}-(\\d{4})");
  assert.equal(result.replacedNode, null);
}

// Contract 7: RegExpLiteral visitor skips wrapRegExp helper wrapping when RegExp is used in a test method expression
{
  const result = simulateTransformation({
    pattern: "(?<year>\\d{4})-\\d{2}|\\d{2}-(?<year>\\d{4})",
    flags: "",
    options: { runtime: true },
    isTest: true
  });

  assert.equal(result.finalPattern, "(\\d{4})-\\d{2}|\\d{2}-(\\d{4})");
  assert.equal(result.replacedNode, null);
}

// Contract 8: RegExpLiteral visitor leaves regular expressions without duplicate named groups unchanged
{
  const result = simulateTransformation({
    pattern: "\\d{4}-\\d{2}",
    flags: "g",
    options: { runtime: true }
  });

  assert.equal(result.finalPattern, "\\d{4}-\\d{2}");
  assert.equal(result.finalFlags, "g");
  assert.equal(result.replacedNode, null);
}

console.log("All @babel/plugin-transform-duplicate-named-capturing-groups-regex contract tests passed successfully.");

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