@babel/types 7.29.7: assertCallExpression, callExpression, isCallExpression

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/types.callExpression in pkg:npm/%40babel/types@7.29.7
Kind: HOW

Use EXACTLY these public packages and versions:
  - pkg:npm/%40babel/types@7.29.7
Demonstrate these symbols/APIs:
  - assertCallExpression
  - callExpression
  - isCallExpression

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.

{"case":{"caseId":"case:sha256:3136b7f2fb3b53ce89336d1419f65ce6371843afaffaa1118bd1051969638a99","contract":["callExpression constructs a CallExpression AST node with callee identifier and argument list","callExpression constructs a method CallExpression with a MemberExpression callee","isCallExpression returns true for CallExpression nodes and false for other AST nodes","assertCallExpression asserts that an AST node is a CallExpression and throws on mismatch"],"goal":"verify @babel/types.callExpression in pkg:npm/%40babel/types@7.29.7","kind":"HOW","packages":["pkg:npm/%40babel/types@7.29.7"],"schemaVersion":1,"symbols":["assertCallExpression","callExpression","isCallExpression"]},"contractCommand":["node","test/contract.mjs"],"environment":{"arch":"x64","distro":"ubuntu","ecosystem":"npm","libc":"glibc","libcVersion":"2.39","os":"linux","osVersionBucket":"24","packageManager":"npm","schemaVersion":1},"license":"MIT-0","packages":["pkg:npm/%40babel/types@7.29.7"],"schemaVersion":1,"subject":"pkg:npm/%40babel/types@7.29.7","symbols":["assertCallExpression","callExpression","isCallExpression"],"verifierAdapter":"node-typescript@1"}

{
  "name": "sample-babel-types-call-expression",
  "version": "1.0.0",
  "lockfileVersion": 3,
  "requires": true,
  "packages": {
    "": {
      "name": "sample-babel-types-call-expression",
      "version": "1.0.0",
      "license": "MIT-0",
      "dependencies": {
        "@babel/types": "7.29.7"
      }
    },
    "node_modules/@babel/helper-string-parser": {
      "version": "7.29.7",
      "resolved": "https://registry.npmjs.org/@babel/helper-string-parser/-/helper-string-parser-7.29.7.tgz",
      "integrity": "sha512-Pb5ijPrZ89GDH8223L4UP8i6QApWxs04RbPQJTeWDV0/keR2E36MeKnyr6LYmUUvqRRI+Iv87SuF1W6ErINzYw==",
      "license": "MIT",
      "engines": {
        "node": ">=6.9.0"
      }
    },
    "node_modules/@babel/helper-validator-identifier": {
      "version": "7.29.7",
      "resolved": "https://registry.npmjs.org/@babel/helper-validator-identifier/-/helper-validator-identifier-7.29.7.tgz",
      "integrity": "sha512-qehxGkRj55h/ff8EMaJ+cYhyaKlHIxqYDn682wQD7RNp9UujOQsHog2uS0r2vzr4pW+sXf90NeeayjcNaX3fFg==",
      "license": "MIT",
      "engines": {
        "node": ">=6.9.0"
      }
    },
    "node_modules/@babel/types": {
      "version": "7.29.7",
      "resolved": "https://registry.npmjs.org/@babel/types/-/types-7.29.7.tgz",
      "integrity": "sha512-4zBIxpPzowiZpusoFkyGVwakdRJUyuH5PxQ/PrqghfdFWWasvnCdPfQXHrenDai+gyLARulZjZowCOj6fjT4pA==",
      "license": "MIT",
      "dependencies": {
        "@babel/helper-string-parser": "^7.29.7",
        "@babel/helper-validator-identifier": "^7.29.7"
      },
      "engines": {
        "node": ">=6.9.0"
      }
    }
  }
}

{
  "name": "sample-babel-types-call-expression",
  "version": "1.0.0",
  "private": true,
  "type": "module",
  "license": "MIT-0",
  "dependencies": {
    "@babel/types": "7.29.7"
  }
}

{
  "schemaVersion": 1,
  "goal": "verify @babel/types.callExpression in pkg:npm/%40babel/types@7.29.7",
  "kind": "HOW",
  "packages": [
    "pkg:npm/%40babel/types@7.29.7"
  ],
  "symbols": [
    "assertCallExpression",
    "callExpression",
    "isCallExpression"
  ]
}

import * as t from "@babel/types";

export function createSimpleCall(calleeName, args = []) {
  return t.callExpression(t.identifier(calleeName), args);
}

export function createMemberCall(objectName, propertyName, args = []) {
  const callee = t.memberExpression(t.identifier(objectName), t.identifier(propertyName));
  return t.callExpression(callee, args);
}

export function checkIsCallExpression(node, opts) {
  return t.isCallExpression(node, opts);
}

export function assertIsCallExpression(node, opts) {
  t.assertCallExpression(node, opts);
}

import assert from "node:assert/strict";
import * as t from "@babel/types";
import {
  createSimpleCall,
  createMemberCall,
  checkIsCallExpression,
  assertIsCallExpression
} from "../src/index.mjs";

// Test 1: callExpression constructs a CallExpression AST node with callee identifier and argument list
{
  const arg1 = t.stringLiteral("hello");
  const arg2 = t.numericLiteral(42);
  const node = createSimpleCall("fn", [arg1, arg2]);

  assert.equal(node.type, "CallExpression");
  assert.equal(node.callee.type, "Identifier");
  assert.equal(node.callee.name, "fn");
  assert.equal(node.arguments.length, 2);
  assert.equal(node.arguments[0].type, "StringLiteral");
  assert.equal(node.arguments[0].value, "hello");
  assert.equal(node.arguments[1].type, "NumericLiteral");
  assert.equal(node.arguments[1].value, 42);
}

// Test 2: callExpression constructs a method CallExpression with a MemberExpression callee
{
  const arg = t.identifier("data");
  const node = createMemberCall("console", "log", [arg]);

  assert.equal(node.type, "CallExpression");
  assert.equal(node.callee.type, "MemberExpression");
  assert.equal(node.callee.object.name, "console");
  assert.equal(node.callee.property.name, "log");
  assert.equal(node.arguments.length, 1);
  assert.equal(node.arguments[0].name, "data");
}

// Test 3: isCallExpression returns true for CallExpression nodes and false for other AST nodes
{
  const callNode = t.callExpression(t.identifier("doWork"), []);
  const identNode = t.identifier("doWork");

  assert.equal(checkIsCallExpression(callNode), true);
  assert.equal(checkIsCallExpression(identNode), false);
  assert.equal(checkIsCallExpression(null), false);
  assert.equal(checkIsCallExpression(undefined), false);
}

// Test 4: assertCallExpression asserts that an AST node is a CallExpression and throws on mismatch
{
  const callNode = t.callExpression(t.identifier("doWork"), []);
  const literalNode = t.numericLiteral(123);

  assert.doesNotThrow(() => {
    assertIsCallExpression(callNode);
  });

  assert.throws(
    () => {
      assertIsCallExpression(literalNode);
    },
    {
      name: "Error"
    }
  );
}

console.log("All @babel/types.callExpression contract tests passed successfully.");