Merge commit '6e92d2345e8231a44556ce7d416451f5f3e6c398' as 'engine262'

2026-08-18 21:31:46 +00:00 · 2026-03-27 10:07:29 +05:30
parent 8f26db5a1f 6e92d2345e
commit b42a69d9f8
433 changed files with 90478 additions and 0 deletions
@@ -0,0 +1,177 @@
+import { readFileSync } from 'node:fs';
+import { execSync } from 'node:child_process';
+import { createRequire } from 'node:module';
+import { babel, type RollupBabelInputPluginOptions } from '@rollup/plugin-babel';
+import commonjs from '@rollup/plugin-commonjs';
+import json from '@rollup/plugin-json';
+import { nodeResolve } from '@rollup/plugin-node-resolve';
+import { defineConfig, type Plugin } from 'rollup';
+import packageJson from '../package.json' with { type: 'json' };
+
+const commitHash = execSync('git rev-parse HEAD', { encoding: 'utf8' }).trim();
+
+const banner = `/*!
+ * engine262 ${packageJson.version} ${commitHash}
+ *
+ * ${readFileSync('./LICENSE', 'utf8').trim().split('\n').join('\n * ')}
+ */
+`;
+
+const babelOptions: RollupBabelInputPluginOptions = {
+  babelHelpers: 'bundled',
+  exclude: 'node_modules/**',
+  generatorOpts: {
+    importAttributesKeyword: 'with',
+  },
+  presets: [[
+    '@babel/preset-env',
+    {
+      // this includes at least 1 LTS for Node.js
+      targets: ['last 2 node versions'],
+      spec: true,
+      bugfixes: true,
+    },
+  ], [
+    '@babel/preset-typescript',
+    {
+      allowDeclareFields: true,
+    },
+  ]],
+  extensions: ['.mts'],
+};
+
+export default defineConfig([
+  {
+    input: 'lib-src/inspector/index.mts',
+    plugins: [
+      babel(babelOptions),
+      {
+        name: 'resolve-self',
+        resolveId(source, _importer, _options) {
+          if (source === '#self') {
+            return { id: './engine262.mjs' };
+          }
+          return undefined;
+        },
+      },
+      {
+        name: 'dts',
+        buildStart() {
+          this.emitFile({
+            type: 'asset',
+            fileName: 'inspector.d.ts',
+            source: 'export * from "../lib/inspector/index.d.mts";',
+          });
+          this.emitFile({
+            type: 'asset',
+            fileName: 'inspector.d.mts',
+            source: 'export * from "../lib/inspector/index.d.mts";',
+          });
+        },
+      },
+    ],
+    external: ['./engine262.mjs'],
+    output: [
+      {
+        file: 'lib/inspector.js',
+        format: 'umd',
+        sourcemap: true,
+        name: `${packageJson.name}/inspector`,
+        banner,
+        globals: { './engine262.mjs': '@engine262/engine262' },
+      },
+      {
+        file: 'lib/inspector.mjs',
+        format: 'es',
+        sourcemap: true,
+        banner,
+      },
+    ],
+  },
+  {
+    input: './src/index.mts',
+    plugins: [
+      importUnicodeLib(),
+      (json.default || json)({ compact: true }),
+      (commonjs.default || commonjs)(),
+      nodeResolve({ exportConditions: ['rollup'], extensions: ['.mts'] }),
+      babel({
+        ...babelOptions,
+        plugins: [
+          './scripts/transform.mts',
+          ['@babel/plugin-proposal-decorators', {
+            'version': '2023-11',
+          }],
+        ],
+      }),
+      {
+        name: 'dts',
+        buildStart() {
+          this.emitFile({
+            type: 'asset',
+            fileName: 'engine262.d.ts',
+            source: 'export * from "../declaration/index.d.mjs";',
+          });
+          this.emitFile({
+            type: 'asset',
+            fileName: 'engine262.d.mts',
+            source: 'export * from "../declaration/index.d.mjs";',
+          });
+        },
+      },
+    ],
+    output: [
+      {
+        file: 'lib/engine262.js',
+        format: 'umd',
+        sourcemap: true,
+        name: packageJson.name,
+        banner,
+      },
+      {
+        file: 'lib/engine262.mjs',
+        format: 'es',
+        sourcemap: true,
+        banner,
+      },
+    ],
+    onwarn(warning, warn) {
+      if (warning.code === 'CIRCULAR_DEPENDENCY' || warning.code === 'SOURCEMAP_BROKEN') {
+        // Squelch.
+        return;
+      }
+      process.exitCode = 1;
+      warn(warning);
+    },
+  }]);
+
+/**
+ * Special handle of the following modules so we don't need to import the whole zlib polyfill.
+ */
+function importUnicodeLib(): Plugin {
+  const canImport = ['@unicode/unicode-16.0.0/Case_Folding/C/symbols.js', '@unicode/unicode-16.0.0/Case_Folding/S/symbols.js'];
+  return {
+    name: '@unicode lib import',
+    async transform(code, id) {
+      if (!id.includes('node_modules/@unicode')) {
+        return { code, map: this.getCombinedSourcemap() };
+      }
+      if (canImport.some((i) => id.endsWith(i))) {
+        const module = createRequire(import.meta.url)(id) as Map<string, string>;
+        const codePointsInArray = Array.from(module.entries()).map(([str, str2]) => {
+          const it1 = str[Symbol.iterator]();
+          const it2 = str2[Symbol.iterator]();
+          it1.next();
+          it2.next();
+          if (!it1.next().done || !it2.next().done) {
+            throw new Error(`TODO: handle something strange: ${str} ${str2}`);
+          }
+          return [str.codePointAt(0), str2.codePointAt(0)];
+        });
+        const str = JSON.stringify(JSON.stringify(codePointsInArray));
+        return `export default new Map(JSON.parse(${str}).map(([cp1, cp2]) => [String.fromCodePoint(cp1), String.fromCodePoint(cp2)]));`;
+      }
+      return code;
+    },
+  };
+}