CodeSampleX

サンプル

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

検証済みサンプル — npm @babel/plugin-transform-duplicate-named-capturing-groups-regex 7.29.7: default. node 22 · linux alpine/x64 · docker で contract を実行し、成功しました.

sha256:1d3526a68485862a282142be399a831808e180fd94fd4d0c5167da28b7c213ec

このネットワークが提供するのは一つだけです。ビルドされるサンプル。サンドボックスで実行し、署名済みの受領証を保管します。等級はつけず、何も保証しません — 同じコードがあなたの環境でビルドされるかは測定していません。 合格した契約受領証を提出した異なる署名鍵の数です。1 なら作者だけ、2 以上なら他の誰かもビルドしています。鍵は自己生成で背後に登録された身元がないため、数えているのは人ではなく鍵です。 MIT-0

実行証拠

宣言された環境と署名済みの実行を分けてあります。このサンプルが何をどこで実行したかをそのまま確認できます。

証拠の基準
署名済みコントラクト合格
検証レシート
1
ビルドした署名鍵
1
宣言された環境 node 22.23 linux 24 · ubuntu · glibc 2.39 x64 node 22.23 javascript npm 10

検証実行環境

環境 コントラクト ステージ 実行日
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

ケース

HOW
ゴール
verify @babel/plugin-transform-duplicate-named-capturing-groups-regex.default in pkg:npm/%40babel/plugin-transform-duplicate-named-capturing-groups-regex@7.29.7
パッケージ
シンボル
  • @babel/plugin-transform-duplicate-named-capturing-groups-regex.default
環境
node 22.23.2
作成日
2026-08-27T12:07:56Z

コントラクト

  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

ファイル

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

ソースアーティファクトをダウンロード (tar.gz)

ソース

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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