chore: unbundled esm

.gitignore

@@ -4,17 +4,17 @@
 node_modules
 *.map
 /src/compiler/compile/internal_exports.js
+/src/shared/version.js
 /compiler.d.ts
-/compiler.*js
-/index.*js
-/ssr.*js
-/action
-/internal
-/store
-/easing
-/motion
-/transition
-/animate
+/compiler.cjs
+/index.d.ts
+/action.d.ts
+/internal.d.ts
+/store.d.ts
+/easing.d.ts
+/motion.d.ts
+/transition.d.ts
+/animate.d.ts
 /scratch/
 /test/*/samples/_
 /test/runtime/shards

.prettierignore

@@ -5,11 +5,13 @@
 /site
 !/src
 src/compiler/compile/internal_exports.js
+src/shared/version.js
 !/test
 /test/**/*.svelte
 /test/**/_expected*
 /test/**/_actual*
 /test/**/expected*
 /test/**/_output
 /types
+!rollup.config.js
 !vitest.config.js

package.json

@@ -6,75 +6,67 @@
   "module": "index.mjs",
   "main": "index",
   "files": [
+    "src",
     "types",
     "compiler.*",
     "register.js",
-    "index.*",
-    "ssr.*",
-    "internal",
-    "store",
-    "animate",
-    "transition",
-    "easing",
-    "motion",
-    "action",
-    "elements",
+    "index.d.ts",
+    "internal.d.ts",
+    "store.d.ts",
+    "animate.d.ts",
+    "transition.d.ts",
+    "easing.d.ts",
+    "motion.d.ts",
+    "action.d.ts",
+    "elements.d.ts",
     "README.md"
   ],
   "exports": {
     "./package.json": "./package.json",
     ".": {
       "types": "./types/runtime/index.d.ts",
       "browser": {
-        "import": "./index.mjs",
-        "require": "./index.js"
+        "import": "./src/runtime/index.js"
       },
-      "import": "./ssr.mjs",
-      "require": "./ssr.js"
+      "import": "./src/runtime/ssr.js"
     },
     "./compiler": {
       "types": "./types/compiler/index.d.ts",
-      "import": "./compiler.mjs",
-      "require": "./compiler.js"
+      "import": "./src/compiler/index.js",
+      "require": "./compiler.cjs"
     },
     "./action": {
       "types": "./types/runtime/action/index.d.ts"
     },
     "./animate": {
       "types": "./types/runtime/animate/index.d.ts",
-      "import": "./animate/index.mjs",
-      "require": "./animate/index.js"
+      "import": "./src/runtime/animate/index.js"
     },
     "./easing": {
       "types": "./types/runtime/easing/index.d.ts",
-      "import": "./easing/index.mjs",
-      "require": "./easing/index.js"
+      "import": "./src/runtime/easing/index.js"
     },
     "./internal": {
       "types": "./types/runtime/internal/index.d.ts",
-      "import": "./internal/index.mjs",
-      "require": "./internal/index.js"
+      "import": "./src/runtime/internal/index.js"
     },
     "./motion": {
       "types": "./types/runtime/motion/index.d.ts",
-      "import": "./motion/index.mjs",
-      "require": "./motion/index.js"
+      "import": "./src/runtime/motion/index.js"
     },
     "./register": {
       "require": "./register.js"
     },
     "./store": {
       "types": "./types/runtime/store/index.d.ts",
-      "import": "./store/index.mjs",
-      "require": "./store/index.js"
+      "import": "./src/runtime/store/index.js"
     },
     "./transition": {
       "types": "./types/runtime/transition/index.d.ts",
-      "import": "./transition/index.mjs",
-      "require": "./transition/index.js"
+      "import": "./src/runtime/transition/index.js"
     },
     "./elements": {
-      "types": "./elements/index.d.ts"
+      "types": "./elements.d.ts"
     }
   },
   "engines": {

rollup.config.js

@@ -0,0 +1,82 @@
+import fs from 'node:fs';
+import { createRequire } from 'node:module';
+import replace from '@rollup/plugin-replace';
+import resolve from '@rollup/plugin-node-resolve';
+import commonjs from '@rollup/plugin-commonjs';
+import json from '@rollup/plugin-json';
+
+const require = createRequire(import.meta.url);
+const pkg = JSON.parse(fs.readFileSync('package.json', 'utf-8'));
+
+// Create auto-generated .js files
+fs.writeFileSync(
+	'./src/shared/version.js',
+	`/** @type {string} */\nexport const VERSION = '${pkg.version}';`
+);
+
+const internal = await import('./src/runtime/internal/index.js');
+fs.writeFileSync(
+	'src/compiler/compile/internal_exports.js',
+	`// This file is automatically generated\n` +
+		`export default new Set(${JSON.stringify(Object.keys(internal))});`
+);
+
+// Generate d.ts files for runtime entrypoints so that TS can find it also without `"moduleResolution": "bundler"`
+fs.readdirSync('src/runtime', { withFileTypes: true })
+	.filter((dirent) => dirent.isDirectory())
+	.forEach((dirent) =>
+		fs.writeFileSync(
+			`${dirent.name}.d.ts`,
+			`export * from './types/runtime/${dirent.name}/index.js';`
+		)
+	);
+
+fs.writeFileSync('./index.d.ts', `export * from './types/runtime/index.js';`);
+
+fs.writeFileSync(
+	'./compiler.d.ts',
+	`export { compile, parse, preprocess, walk, VERSION } from './types/compiler/index.js';`
+);
+
+/**
+ * @type {import("rollup").RollupOptions[]}
+ */
+export default [
+	// Generate UMD build of the compiler so that Eslint/Pretter (which need CJS) and REPL (which needs UMD because browser) can use it
+	{
+		input: 'src/compiler/index.js',
+		plugins: [
+			replace({
+				preventAssignment: true,
+				values: {
+					'process.env.NODE_DEBUG': false // appears inside the util package
+				}
+			}),
+			{
+				resolveId(id) {
+					// util is a built-in module in Node.js, but we want a self-contained compiler bundle
+					// that also works in the browser, so we load its polyfill instead
+					if (id === 'util') {
+						return require.resolve('./node_modules/util'); // just 'utils' would resolve this to the built-in module
+					}
+					// Must import from the `css-tree` browser bundled distribution due to `createRequire` usage if importing from css-tree directly
+					if (id === 'css-tree') {
+						return require.resolve('./node_modules/css-tree/dist/csstree.esm.js');
+					}
+				}
+			},
+			resolve(),
+			commonjs({
+				include: ['node_modules/**']
+			}),
+			json()
+		],
+		output: {
+			file: 'compiler.cjs',
+			format: 'umd',
+			name: 'svelte',
+			sourcemap: false
+		},
+		external: []
+	}
+];

src/compiler/compile/Component.js

@@ -28,6 +28,7 @@ import {
 	extract_svelte_ignore_from_comments
 } from '../utils/extract_svelte_ignore.js';
 import check_enable_sourcemap from './utils/check_enable_sourcemap.js';
+import { VERSION } from '../../shared/version.js';
 
 const regex_leading_directory_separator = /^[/\\]/;
 const regex_starts_with_term_export = /^Export/;
@@ -320,7 +321,7 @@ export default class Component {
 		if (result) {
 			const { compile_options, name } = this;
 			const { format = 'esm' } = compile_options;
-			const banner = `${this.file ? `${this.file} ` : ''}generated by Svelte v${'__VERSION__'}`;
+			const banner = `${this.file ? `${this.file} ` : ''}generated by Svelte v${VERSION}`;
 
 			/** @type {any} */
 			const program = { type: 'Program', body: result.js };