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node_modules/next/dist/build/babel/plugins/react-loadable-plugin.js

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+/**
+COPYRIGHT (c) 2017-present James Kyle <me@thejameskyle.com>
+ MIT License
+ Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+ The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+ THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWAR
+*/ // This file is https://github.com/jamiebuilds/react-loadable/blob/master/src/babel.js
+// - Modified to also look for `next/dynamic`
+// - Modified to put `webpack` and `modules` under `loadableGenerated` to be
+//   backwards compatible with next/dynamic which has a `modules` key
+// - Modified to support `dynamic(import('something'))` and
+//   `dynamic(import('something'), options)
+// - Removed `Loadable.Map` support, `next/dynamic` uses overloaded arguments
+//   instead of a separate API
+"use strict";
+Object.defineProperty(exports, "__esModule", {
+    value: true
+});
+Object.defineProperty(exports, "default", {
+    enumerable: true,
+    get: function() {
+        return _default;
+    }
+});
+const _path = require("path");
+function _default({ types: t }) {
+    return {
+        visitor: {
+            ImportDeclaration (path, state) {
+                let source = path.node.source.value;
+                if (source !== 'next/dynamic') return;
+                let defaultSpecifier = path.get('specifiers').find((specifier)=>{
+                    return specifier.isImportDefaultSpecifier();
+                });
+                if (!defaultSpecifier) return;
+                const bindingName = defaultSpecifier.node.local.name;
+                const binding = path.scope.getBinding(bindingName);
+                if (!binding) {
+                    return;
+                }
+                binding.referencePaths.forEach((refPath)=>{
+                    var _state_file_opts_caller, _state_file_opts_caller1;
+                    let callExpression = refPath.parentPath;
+                    if (!(callExpression == null ? void 0 : callExpression.isCallExpression())) return;
+                    let args = callExpression.get('arguments');
+                    if (args.length > 2) {
+                        throw callExpression.buildCodeFrameError('next/dynamic only accepts 2 arguments');
+                    }
+                    if (!args[0]) {
+                        return;
+                    }
+                    let loader;
+                    let options;
+                    if (args[0].isObjectExpression()) {
+                        options = args[0];
+                    } else {
+                        if (!args[1]) {
+                            callExpression.node.arguments.push(t.objectExpression([]));
+                        }
+                        // This is needed as the code is modified above
+                        args = callExpression.get('arguments');
+                        loader = args[0];
+                        options = args[1];
+                    }
+                    if (!options.isObjectExpression()) return;
+                    const options_ = options;
+                    let properties = options_.get('properties');
+                    let propertiesMap = {};
+                    properties.forEach((property)=>{
+                        const key = property.get('key');
+                        propertiesMap[key.node.name] = property;
+                    });
+                    if (propertiesMap.loadableGenerated) {
+                        return;
+                    }
+                    if (propertiesMap.loader) {
+                        loader = propertiesMap.loader.get('value');
+                    }
+                    if (propertiesMap.modules) {
+                        loader = propertiesMap.modules.get('value');
+                    }
+                    if (!loader || Array.isArray(loader)) {
+                        return;
+                    }
+                    const dynamicImports = [];
+                    const dynamicKeys = [];
+                    if (propertiesMap.ssr) {
+                        const ssr = propertiesMap.ssr.get('value');
+                        const nodePath = Array.isArray(ssr) ? undefined : ssr;
+                        if (nodePath) {
+                            var _state_file_opts_caller2;
+                            const nonSSR = nodePath.node.type === 'BooleanLiteral' && nodePath.node.value === false;
+                            // If `ssr` is set to `false`, erase the loader for server side
+                            if (nonSSR && loader && ((_state_file_opts_caller2 = state.file.opts.caller) == null ? void 0 : _state_file_opts_caller2.isServer)) {
+                                loader.replaceWith(t.arrowFunctionExpression([], t.nullLiteral(), true));
+                            }
+                        }
+                    }
+                    loader.traverse({
+                        Import (importPath) {
+                            var _state_file_opts_caller;
+                            const importArguments = importPath.parentPath.get('arguments');
+                            if (!Array.isArray(importArguments)) return;
+                            const node = importArguments[0].node;
+                            dynamicImports.push(node);
+                            dynamicKeys.push(t.binaryExpression('+', t.stringLiteral((((_state_file_opts_caller = state.file.opts.caller) == null ? void 0 : _state_file_opts_caller.srcDir) ? (0, _path.relative)(state.file.opts.caller.srcDir, state.file.opts.filename) : state.file.opts.filename) + ' -> '), node));
+                        }
+                    });
+                    if (!dynamicImports.length) return;
+                    options.node.properties.push(t.objectProperty(t.identifier('loadableGenerated'), t.objectExpression(((_state_file_opts_caller = state.file.opts.caller) == null ? void 0 : _state_file_opts_caller.isDev) || ((_state_file_opts_caller1 = state.file.opts.caller) == null ? void 0 : _state_file_opts_caller1.isServer) ? [
+                        t.objectProperty(t.identifier('modules'), t.arrayExpression(dynamicKeys))
+                    ] : [
+                        t.objectProperty(t.identifier('webpack'), t.arrowFunctionExpression([], t.arrayExpression(dynamicImports.map((dynamicImport)=>{
+                            return t.callExpression(t.memberExpression(t.identifier('require'), t.identifier('resolveWeak')), [
+                                dynamicImport
+                            ]);
+                        }))))
+                    ])));
+                    // Turns `dynamic(import('something'))` into `dynamic(() => import('something'))` for backwards compat.
+                    // This is the replicate the behavior in versions below Next.js 7 where we magically handled not executing the `import()` too.
+                    // We'll deprecate this behavior and provide a codemod for it in 7.1.
+                    if (loader.isCallExpression()) {
+                        const arrowFunction = t.arrowFunctionExpression([], loader.node);
+                        loader.replaceWith(arrowFunction);
+                    }
+                });
+            }
+        }
+    };
+}
+
+//# sourceMappingURL=react-loadable-plugin.js.map