Clone engine262 in /engine262

engine262/rollup.config.js

@@ -0,0 +1,55 @@
+'use strict';
+
+const fs = require('fs');
+const { execSync } = require('child_process');
+const { babel } = require('@rollup/plugin-babel');
+const commonjs = require('@rollup/plugin-commonjs');
+const { nodeResolve } = require('@rollup/plugin-node-resolve');
+const { name, version } = require('./package.json');
+
+const hash = execSync('git rev-parse HEAD', { encoding: 'utf8' }).trim();
+
+const banner = `/*!
+ * engine262 ${version} ${hash}
+ *
+ * ${fs.readFileSync('./LICENSE', 'utf8').trim().split('\n').join('\n * ')}
+ */
+`;
+
+module.exports = () => ({
+  input: './src/api.mjs',
+  plugins: [
+    commonjs(),
+    nodeResolve(),
+    babel({
+      babelHelpers: 'bundled',
+      exclude: 'node_modules/**',
+      plugins: [
+        './scripts/transform.js',
+      ],
+    }),
+  ],
+  output: [
+    {
+      file: 'dist/engine262.js',
+      format: 'umd',
+      sourcemap: true,
+      name,
+      banner,
+    },
+    {
+      file: 'dist/engine262.mjs',
+      format: 'es',
+      sourcemap: true,
+      banner,
+    },
+  ],
+  onwarn(warning, warn) {
+    if (warning.code === 'CIRCULAR_DEPENDENCY') {
+      // Squelch.
+      return;
+    }
+    process.exitCode = 1;
+    warn(warning);
+  },
+});