Remove export code

src/index.js

@@ -225,20 +225,6 @@ export default async function loader(content, sourceMap, meta = {}) {
 
   const newMeta = { ...meta, ast, messages };
 
-  if (this.loaderIndex === 0) {
-    /**
-     * @memberof loader
-     * @callback callback
-     *
-     * @param {Object} null Error
-     * @param {String} css  Result (JS Module)
-     * @param {Object} map  Source Map
-     */
-    callback(null, `module.exports = ${JSON.stringify(css)}`, map);
-
-    return;
-  }
-
   /**
    * @memberof loader
    * @callback callback

test/__snapshots__/loader.test.js.snap

@@ -16,7 +16,10 @@ SyntaxError
 
 exports[`loader should emit Syntax Error: warnings 1`] = `Array []`;
 
-exports[`loader should emit warning: css 1`] = `"module.exports = \\"a { color: black }\\\\n\\""`;
+exports[`loader should emit warning: css 1`] = `
+"a { color: black }
+"
+`;
 
 exports[`loader should emit warning: errors 1`] = `Array []`;
 
@@ -29,7 +32,10 @@ Warning
 ]
 `;
 
-exports[`loader should work: css 1`] = `"module.exports = \\"a { color: black }\\\\n\\""`;
+exports[`loader should work: css 1`] = `
+"a { color: black }
+"
+`;
 
 exports[`loader should work: errors 1`] = `Array []`;
 

test/helpers/getCodeFromBundle.js

@@ -1,21 +1,25 @@
-import webpack from 'webpack';
-
 import normalizeMap from './normalizeMap';
 
-const isWebpack5 = webpack.version[0] === '5';
-
 export default (id, stats) => {
   const { modules } = stats.compilation;
   const module = modules.find((m) => m.id.endsWith(id));
   const { _source } = module;
 
-  return {
-    // eslint-disable-next-line no-underscore-dangle
-    css: _source._value || _source._valueAsString,
-    map: isWebpack5
-      ? // eslint-disable-next-line no-underscore-dangle
-        normalizeMap(_source._sourceMapAsObject)
-      : // eslint-disable-next-line no-underscore-dangle
-        normalizeMap(_source._sourceMap),
-  };
+  // eslint-disable-next-line no-underscore-dangle
+  const code = (_source._value || _source._valueAsString).replace(
+    'module.exports = ',
+    ''
+  );
+
+  let result;
+
+  try {
+    result = JSON.parse(code);
+  } catch (error) {
+    result = { css: code };
+  }
+
+  const { css, map } = result;
+
+  return { css, map: normalizeMap(map) };
 };

test/helpers/getCompiler.js

@@ -20,6 +20,10 @@ export default (fixture, loaderOptions = {}, config = {}) => {
         {
           test: /\.css$/i,
           use: [
+            {
+              loader: require.resolve('./testLoader'),
+              options: {},
+            },
             {
               loader: path.resolve(__dirname, '../../src'),
               options: loaderOptions || {},

test/helpers/testLoader.js

@@ -0,0 +1,11 @@
+function testLoader(content, sourceMap) {
+  const result = { css: content };
+
+  if (sourceMap) {
+    result.map = sourceMap;
+  }
+
+  return `module.exports = ${JSON.stringify(result)}`;
+}
+
+module.exports = testLoader;

test/options/__snapshots__/config.test.js.snap

@@ -1,24 +1,36 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Config Options should work Config - {Object}: css 1`] = `"module.exports = \\"a { color: rgba(255, 0, 0, 1.0) }\\\\n\\""`;
+exports[`Config Options should work Config - {Object}: css 1`] = `
+"a { color: rgba(255, 0, 0, 1.0) }
+"
+`;
 
 exports[`Config Options should work Config - {Object}: errors 1`] = `Array []`;
 
 exports[`Config Options should work Config - {Object}: warnings 1`] = `Array []`;
 
-exports[`Config Options should work Config - Context - {Object} - with ident: css 1`] = `"module.exports = \\"a { color: rgba(255, 0, 0, 1.0) }\\\\n\\""`;
+exports[`Config Options should work Config - Context - {Object} - with ident: css 1`] = `
+"a { color: rgba(255, 0, 0, 1.0) }
+"
+`;
 
 exports[`Config Options should work Config - Context - {Object} - with ident: errors 1`] = `Array []`;
 
 exports[`Config Options should work Config - Context - {Object} - with ident: warnings 1`] = `Array []`;
 
-exports[`Config Options should work Config - Context - {Object}: css 1`] = `"module.exports = \\"a { color: rgba(255, 0, 0, 1.0) }\\\\n\\""`;
+exports[`Config Options should work Config - Context - {Object}: css 1`] = `
+"a { color: rgba(255, 0, 0, 1.0) }
+"
+`;
 
 exports[`Config Options should work Config - Context - {Object}: errors 1`] = `Array []`;
 
 exports[`Config Options should work Config - Context - {Object}: warnings 1`] = `Array []`;
 
-exports[`Config Options should work Config - Path - {String}: css 1`] = `"module.exports = \\"a { color: black }\\\\n\\""`;
+exports[`Config Options should work Config - Path - {String}: css 1`] = `
+"a { color: black }
+"
+`;
 
 exports[`Config Options should work Config - Path - {String}: errors 1`] = `Array []`;
 

test/options/__snapshots__/exec.test.js.snap

@@ -1,13 +1,17 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Options Exec should work Exec - {Boolean}: css 1`] = `"module.exports = \\"a {\\\\n    color: green\\\\n}\\""`;
+exports[`Options Exec should work Exec - {Boolean}: css 1`] = `
+"a {
+    color: green
+}"
+`;
 
 exports[`Options Exec should work Exec - {Boolean}: errors 1`] = `Array []`;
 
 exports[`Options Exec should work Exec - {Boolean}: warnings 1`] = `Array []`;
 
 exports[`Options Exec should work JSS - {String}: css 1`] = `
-"module.exports = { a: { color: 'yellow' } }
+"{ a: { color: 'yellow' } }
 "
 `;
 

test/options/__snapshots__/parser.test.js.snap

@@ -1,12 +1,22 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Options Parser should work Parser - {Object}: css 1`] = `"module.exports = \\"a {\\\\n  color: black\\\\n}\\\\n\\""`;
+exports[`Options Parser should work Parser - {Object}: css 1`] = `
+"a {
+  color: black
+}
+"
+`;
 
 exports[`Options Parser should work Parser - {Object}: errors 1`] = `Array []`;
 
 exports[`Options Parser should work Parser - {Object}: warnings 1`] = `Array []`;
 
-exports[`Options Parser should work Parser - {String}: css 1`] = `"module.exports = \\"a {\\\\n  color: black\\\\n}\\\\n\\""`;
+exports[`Options Parser should work Parser - {String}: css 1`] = `
+"a {
+  color: black
+}
+"
+`;
 
 exports[`Options Parser should work Parser - {String}: errors 1`] = `Array []`;
 

test/options/__snapshots__/plugins.test.js.snap

@@ -1,24 +1,36 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Options Plugins should work Plugins - {Array}: css 1`] = `"module.exports = \\"a { color: rgba(255, 0, 0, 1.0) }\\\\n\\""`;
+exports[`Options Plugins should work Plugins - {Array}: css 1`] = `
+"a { color: rgba(255, 0, 0, 1.0) }
+"
+`;
 
 exports[`Options Plugins should work Plugins - {Array}: errors 1`] = `Array []`;
 
 exports[`Options Plugins should work Plugins - {Array}: warnings 1`] = `Array []`;
 
-exports[`Options Plugins should work Plugins - {Function} - {Array}: css 1`] = `"module.exports = \\"a { color: rgba(255, 0, 0, 1.0) }\\\\n\\""`;
+exports[`Options Plugins should work Plugins - {Function} - {Array}: css 1`] = `
+"a { color: rgba(255, 0, 0, 1.0) }
+"
+`;
 
 exports[`Options Plugins should work Plugins - {Function} - {Array}: errors 1`] = `Array []`;
 
 exports[`Options Plugins should work Plugins - {Function} - {Array}: warnings 1`] = `Array []`;
 
-exports[`Options Plugins should work Plugins - {Function} - {Object}: css 1`] = `"module.exports = \\"a { color: rgba(255, 0, 0, 1.0) }\\\\n\\""`;
+exports[`Options Plugins should work Plugins - {Function} - {Object}: css 1`] = `
+"a { color: rgba(255, 0, 0, 1.0) }
+"
+`;
 
 exports[`Options Plugins should work Plugins - {Function} - {Object}: errors 1`] = `Array []`;
 
 exports[`Options Plugins should work Plugins - {Function} - {Object}: warnings 1`] = `Array []`;
 
-exports[`Options Plugins should work Plugins - {Object}: css 1`] = `"module.exports = \\"a { color: rgba(255, 0, 0, 1.0) }\\\\n\\""`;
+exports[`Options Plugins should work Plugins - {Object}: css 1`] = `
+"a { color: rgba(255, 0, 0, 1.0) }
+"
+`;
 
 exports[`Options Plugins should work Plugins - {Object}: errors 1`] = `Array []`;
 

test/options/__snapshots__/sourceMap.test.js.snap

@@ -1,6 +1,9 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Options Sourcemap should work Sourcemap - {Boolean}: css 1`] = `"module.exports = \\"a { color: rgba(255, 0, 0, 1.0) }\\\\n\\""`;
+exports[`Options Sourcemap should work Sourcemap - {Boolean}: css 1`] = `
+"a { color: rgba(255, 0, 0, 1.0) }
+"
+`;
 
 exports[`Options Sourcemap should work Sourcemap - {Boolean}: errors 1`] = `Array []`;
 
@@ -22,7 +25,11 @@ Object {
 
 exports[`Options Sourcemap should work Sourcemap - {Boolean}: warnings 1`] = `Array []`;
 
-exports[`Options Sourcemap should work Sourcemap - {String}: css 1`] = `"module.exports = \\"a { color: rgba(255, 0, 0, 1.0) }\\\\n\\\\n/*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInRlc3QvZml4dHVyZXMvY3NzL3N0eWxlLmNzcyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSxJQUFJLDRCQUFhIiwiZmlsZSI6InRlc3QvZml4dHVyZXMvY3NzL3N0eWxlLmNzcyIsInNvdXJjZXNDb250ZW50IjpbImEgeyBjb2xvcjogYmxhY2sgfVxuIl19 */\\""`;
+exports[`Options Sourcemap should work Sourcemap - {String}: css 1`] = `
+"a { color: rgba(255, 0, 0, 1.0) }
+
+/*# sourceMappingURL=data:application/json;base64,eyJ2ZXJzaW9uIjozLCJzb3VyY2VzIjpbInRlc3QvZml4dHVyZXMvY3NzL3N0eWxlLmNzcyJdLCJuYW1lcyI6W10sIm1hcHBpbmdzIjoiQUFBQSxJQUFJLDRCQUFhIiwiZmlsZSI6InRlc3QvZml4dHVyZXMvY3NzL3N0eWxlLmNzcyIsInNvdXJjZXNDb250ZW50IjpbImEgeyBjb2xvcjogYmxhY2sgfVxuIl19 */"
+`;
 
 exports[`Options Sourcemap should work Sourcemap - {String}: errors 1`] = `Array []`;
 

test/options/__snapshots__/stringifier.test.js.snap

@@ -1,12 +1,18 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Options Stringifier should work Stringifier - {Object}: css 1`] = `"module.exports = \\"a  color: black\\\\n\\""`;
+exports[`Options Stringifier should work Stringifier - {Object}: css 1`] = `
+"a  color: black
+"
+`;
 
 exports[`Options Stringifier should work Stringifier - {Object}: errors 1`] = `Array []`;
 
 exports[`Options Stringifier should work Stringifier - {Object}: warnings 1`] = `Array []`;
 
-exports[`Options Stringifier should work Stringifier - {String}: css 1`] = `"module.exports = \\"a  color: black\\\\n\\""`;
+exports[`Options Stringifier should work Stringifier - {String}: css 1`] = `
+"a  color: black
+"
+`;
 
 exports[`Options Stringifier should work Stringifier - {String}: errors 1`] = `Array []`;
 

test/options/__snapshots__/syntax.test.js.snap

@@ -1,12 +1,20 @@
 // Jest Snapshot v1, https://goo.gl/fbAQLP
 
-exports[`Options Syntax should work Syntax - {Object}: css 1`] = `"module.exports = \\"a\\\\n  color: black\\\\n\\""`;
+exports[`Options Syntax should work Syntax - {Object}: css 1`] = `
+"a
+  color: black
+"
+`;
 
 exports[`Options Syntax should work Syntax - {Object}: errors 1`] = `Array []`;
 
 exports[`Options Syntax should work Syntax - {Object}: warnings 1`] = `Array []`;
 
-exports[`Options Syntax should work Syntax - {String}: css 1`] = `"module.exports = \\"a\\\\n  color: black\\\\n\\""`;
+exports[`Options Syntax should work Syntax - {String}: css 1`] = `
+"a
+  color: black
+"
+`;
 
 exports[`Options Syntax should work Syntax - {String}: errors 1`] = `Array []`;
 

test/options/exec.test.js

@@ -19,6 +19,10 @@ describe('Options Exec', () => {
             {
               test: /style\.(exec\.js|js)$/i,
               use: [
+                {
+                  loader: require.resolve('../helpers/testLoader'),
+                  options: {},
+                },
                 {
                   loader: path.resolve(__dirname, '../../src'),
                   options: { exec: true },
@@ -48,6 +52,10 @@ describe('Options Exec', () => {
             {
               test: /style.\.js$/i,
               use: [
+                {
+                  loader: require.resolve('../helpers/testLoader'),
+                  options: {},
+                },
                 {
                   loader: path.resolve(__dirname, '../../src'),
                   options: { parser: 'postcss-js' },

test/options/parser.test.js

@@ -19,6 +19,10 @@ describe('Options Parser', () => {
             {
               test: /\.sss$/i,
               use: [
+                {
+                  loader: require.resolve('../helpers/testLoader'),
+                  options: {},
+                },
                 {
                   loader: path.resolve(__dirname, '../../src'),
                   options: { parser: 'sugarss' },
@@ -48,6 +52,10 @@ describe('Options Parser', () => {
             {
               test: /\.sss$/i,
               use: [
+                {
+                  loader: require.resolve('../helpers/testLoader'),
+                  options: {},
+                },
                 {
                   loader: path.resolve(__dirname, '../../src'),
                   // eslint-disable-next-line global-require

test/options/syntax.test.js

@@ -19,6 +19,10 @@ describe('Options Syntax', () => {
             {
               test: /\.sss$/i,
               use: [
+                {
+                  loader: require.resolve('../helpers/testLoader'),
+                  options: {},
+                },
                 {
                   loader: path.resolve(__dirname, '../../src'),
                   options: { syntax: 'sugarss' },
@@ -48,6 +52,10 @@ describe('Options Syntax', () => {
             {
               test: /\.sss$/i,
               use: [
+                {
+                  loader: require.resolve('../helpers/testLoader'),
+                  options: {},
+                },
                 {
                   loader: path.resolve(__dirname, '../../src'),
                   options: {

test/validate-options.test.js

@@ -72,6 +72,10 @@ describe('validate options', () => {
                 {
                   test: /\.sss$/i,
                   use: [
+                    {
+                      loader: require.resolve('./helpers/testLoader'),
+                      options: {},
+                    },
                     {
                       loader: path.resolve(__dirname, '../src'),
                       options: { [key]: value },