@rollup/pluginutils - npm Package Compare versions

Comparing version 5.0.5 to 5.1.0

dist/cjs/index.js

@@ -288,3 +288,13 @@ 'use strict';
 }
+// isWellFormed exists from Node.js 20
+const hasStringIsWellFormed = 'isWellFormed' in String.prototype;
+function isWellFormedString(input) {
+    // @ts-expect-error String::isWellFormed exists from ES2024. tsconfig lib is set to ES6
+    if (hasStringIsWellFormed)
+        return input.isWellFormed();
+    // https://github.com/tc39/proposal-is-usv-string/blob/main/README.md#algorithm
+    return !/\p{Surrogate}/u.test(input);
+}
 const dataToEsm = function dataToEsm(data, options = {}) {
+    var _a, _b;
     const t = options.compact ? '' : 'indent' in options ? options.indent : '\t';
@@ -304,4 +314,13 @@ const _ = options.compact ? '' : ' ';
     }
+    let maxUnderbarPrefixLength = 0;
+    for (const key of Object.keys(data)) {
+        const underbarPrefixLength = (_b = (_a = key.match(/^(_+)/)) === null || _a === void 0 ? void 0 : _a[0].length) !== null && _b !== void 0 ? _b : 0;
+        if (underbarPrefixLength > maxUnderbarPrefixLength) {
+            maxUnderbarPrefixLength = underbarPrefixLength;
+        }
+    }
+    const arbitraryNamePrefix = `${'_'.repeat(maxUnderbarPrefixLength + 1)}arbitrary`;
     let namedExportCode = '';
     const defaultExportRows = [];
+    const arbitraryNameExportRows = [];
     for (const [key, value] of Object.entries(data)) {
@@ -317,5 +336,14 @@ if (key === makeLegalIdentifier(key)) {
             defaultExportRows.push(`${stringify(key)}:${_}${serialize(value, options.compact ? null : t, '')}`);
+            if (options.includeArbitraryNames && isWellFormedString(key)) {
+                const variableName = `${arbitraryNamePrefix}${arbitraryNameExportRows.length}`;
+                namedExportCode += `${declarationType} ${variableName}${_}=${_}${serialize(value, options.compact ? null : t, '')};${n}`;
+                arbitraryNameExportRows.push(`${variableName} as ${JSON.stringify(key)}`);
+            }
         }
     }
-    return `${namedExportCode}export default${_}{${n}${t}${defaultExportRows.join(`,${n}${t}`)}${n}};${n}`;
+    const arbitraryExportCode = arbitraryNameExportRows.length > 0
+        ? `export${_}{${n}${t}${arbitraryNameExportRows.join(`,${n}${t}`)}${n}};${n}`
+        : '';
+    const defaultExportCode = `export default${_}{${n}${t}${defaultExportRows.join(`,${n}${t}`)}${n}};${n}`;
+    return `${namedExportCode}${arbitraryExportCode}${defaultExportCode}`;
 };
@@ -322,0 +350,0 @@

dist/es/index.js

@@ -284,3 +284,13 @@ import { extname, win32, posix, isAbsolute, resolve } from 'path';
 }
+// isWellFormed exists from Node.js 20
+const hasStringIsWellFormed = 'isWellFormed' in String.prototype;
+function isWellFormedString(input) {
+    // @ts-expect-error String::isWellFormed exists from ES2024. tsconfig lib is set to ES6
+    if (hasStringIsWellFormed)
+        return input.isWellFormed();
+    // https://github.com/tc39/proposal-is-usv-string/blob/main/README.md#algorithm
+    return !/\p{Surrogate}/u.test(input);
+}
 const dataToEsm = function dataToEsm(data, options = {}) {
+    var _a, _b;
     const t = options.compact ? '' : 'indent' in options ? options.indent : '\t';
@@ -300,4 +310,13 @@ const _ = options.compact ? '' : ' ';
     }
+    let maxUnderbarPrefixLength = 0;
+    for (const key of Object.keys(data)) {
+        const underbarPrefixLength = (_b = (_a = key.match(/^(_+)/)) === null || _a === void 0 ? void 0 : _a[0].length) !== null && _b !== void 0 ? _b : 0;
+        if (underbarPrefixLength > maxUnderbarPrefixLength) {
+            maxUnderbarPrefixLength = underbarPrefixLength;
+        }
+    }
+    const arbitraryNamePrefix = `${'_'.repeat(maxUnderbarPrefixLength + 1)}arbitrary`;
     let namedExportCode = '';
     const defaultExportRows = [];
+    const arbitraryNameExportRows = [];
     for (const [key, value] of Object.entries(data)) {
@@ -313,5 +332,14 @@ if (key === makeLegalIdentifier(key)) {
             defaultExportRows.push(`${stringify(key)}:${_}${serialize(value, options.compact ? null : t, '')}`);
+            if (options.includeArbitraryNames && isWellFormedString(key)) {
+                const variableName = `${arbitraryNamePrefix}${arbitraryNameExportRows.length}`;
+                namedExportCode += `${declarationType} ${variableName}${_}=${_}${serialize(value, options.compact ? null : t, '')};${n}`;
+                arbitraryNameExportRows.push(`${variableName} as ${JSON.stringify(key)}`);
+            }
         }
     }
-    return `${namedExportCode}export default${_}{${n}${t}${defaultExportRows.join(`,${n}${t}`)}${n}};${n}`;
+    const arbitraryExportCode = arbitraryNameExportRows.length > 0
+        ? `export${_}{${n}${t}${arbitraryNameExportRows.join(`,${n}${t}`)}${n}};${n}`
+        : '';
+    const defaultExportCode = `export default${_}{${n}${t}${defaultExportRows.join(`,${n}${t}`)}${n}};${n}`;
+    return `${namedExportCode}${arbitraryExportCode}${defaultExportCode}`;
 };
@@ -318,0 +346,0 @@

package.json

 {
   "name": "@rollup/pluginutils",
-  "version": "5.0.5",
+  "version": "5.1.0",
   "publishConfig": {
@@ -29,16 +29,2 @@ "access": "public"
   },
-  "scripts": {
-    "build": "rollup -c",
-    "ci:coverage": "nyc pnpm test && nyc report --reporter=text-lcov > coverage.lcov",
-    "ci:lint": "pnpm build && pnpm lint",
-    "ci:lint:commits": "commitlint --from=${CIRCLE_BRANCH} --to=${CIRCLE_SHA1}",
-    "ci:test": "pnpm test -- --verbose",
-    "prebuild": "del-cli dist",
-    "prepare": "if [ ! -d 'dist' ]; then pnpm build; fi",
-    "prerelease": "pnpm build",
-    "pretest": "pnpm build --sourcemap",
-    "release": "pnpm --workspace-root plugin:release --pkg $npm_package_name",
-    "test": "ava",
-    "test:ts": "tsc --noEmit"
-  },
   "files": [
@@ -100,3 +86,16 @@ "dist",
     ]
+  },
+  "scripts": {
+    "build": "rollup -c",
+    "ci:coverage": "nyc pnpm test && nyc report --reporter=text-lcov > coverage.lcov",
+    "ci:lint": "pnpm build && pnpm lint",
+    "ci:lint:commits": "commitlint --from=${CIRCLE_BRANCH} --to=${CIRCLE_SHA1}",
+    "ci:test": "pnpm test -- --verbose",
+    "prebuild": "del-cli dist",
+    "prerelease": "pnpm build",
+    "pretest": "pnpm build --sourcemap",
+    "release": "pnpm --workspace-root package:release $(pwd)",
+    "test": "ava",
+    "test:ts": "tsc --noEmit"
   }
-}
+}

README.md

@@ -103,3 +103,3 @@ [npm]: https://img.shields.io/npm/v/@rollup/pluginutils
 Parameters: `(include?: <picomatch>, exclude?: <picomatch>, options?: Object)`<br>
-Returns: `String`
+Returns: `(id: string | unknown) => boolean`
 
@@ -147,3 +147,3 @@ #### `include` and `exclude`
 
-Parameters: `(data: Object)`<br>
+Parameters: `(data: Object, options: DataToEsmOptions)`<br>
 Returns: `String`
@@ -157,2 +157,8 @@
 
+#### `options`
+
+Type: `DataToEsmOptions`
+
+_Note: Please see the TypeScript definition for complete documentation of these options_
+
 #### Usage
@@ -173,3 +179,4 @@
     objectShorthand: true,
-    namedExports: true
+    namedExports: true,
+    includeArbitraryNames: false
   }
@@ -176,0 +183,0 @@ );

types/index.d.ts

@@ -13,2 +13,8 @@ import type { BaseNode } from 'estree';
   compact?: boolean;
+  /**
+   * @desc When this option is set, dataToEsm will generate a named export for keys that
+   * are not a valid identifier, by leveraging the "Arbitrary Module Namespace Identifier
+   * Names" feature. See: https://github.com/tc39/ecma262/pull/2154
+   */
+  includeArbitraryNames?: boolean;
   indent?: string;
@@ -15,0 +21,0 @@ namedExports?: boolean;

No alert changes

Improved metrics

Total package byte prevSize

57092

51.27%

Number of package files

8

33.33%

Lines of code

1150

57.53%

Number of lines in readme file

263

2.73%

No dependency changes