193 lines
8.0 KiB
JavaScript
193 lines
8.0 KiB
JavaScript
"use strict";
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Object.defineProperty(exports, "__esModule", {
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value: true
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});
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exports.default = void 0;
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Object.defineProperty(exports, "defineCommonJSHook", {
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enumerable: true,
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get: function () {
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return _hooks.defineCommonJSHook;
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}
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});
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var _helperPluginUtils = require("@babel/helper-plugin-utils");
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var _helperModuleTransforms = require("@babel/helper-module-transforms");
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var _core = require("@babel/core");
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var _dynamicImport = require("./dynamic-import.js");
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var _lazy = require("./lazy.js");
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var _hooks = require("./hooks.js");
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var _default = exports.default = (0, _helperPluginUtils.declare)((api, options) => {
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var _api$assumption, _api$assumption2, _api$assumption3;
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api.assertVersion(7);
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const {
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strictNamespace = false,
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mjsStrictNamespace = strictNamespace,
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allowTopLevelThis,
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strict,
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strictMode,
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noInterop,
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importInterop,
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lazy = false,
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allowCommonJSExports = true,
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loose = false
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} = options;
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const constantReexports = (_api$assumption = api.assumption("constantReexports")) != null ? _api$assumption : loose;
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const enumerableModuleMeta = (_api$assumption2 = api.assumption("enumerableModuleMeta")) != null ? _api$assumption2 : loose;
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const noIncompleteNsImportDetection = (_api$assumption3 = api.assumption("noIncompleteNsImportDetection")) != null ? _api$assumption3 : false;
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if (typeof lazy !== "boolean" && typeof lazy !== "function" && (!Array.isArray(lazy) || !lazy.every(item => typeof item === "string"))) {
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throw new Error(`.lazy must be a boolean, array of strings, or a function`);
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}
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if (typeof strictNamespace !== "boolean") {
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throw new Error(`.strictNamespace must be a boolean, or undefined`);
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}
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if (typeof mjsStrictNamespace !== "boolean") {
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throw new Error(`.mjsStrictNamespace must be a boolean, or undefined`);
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}
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const getAssertion = localName => _core.template.expression.ast`
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(function(){
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throw new Error(
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"The CommonJS '" + "${localName}" + "' variable is not available in ES6 modules." +
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"Consider setting setting sourceType:script or sourceType:unambiguous in your " +
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"Babel config for this file.");
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})()
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`;
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const moduleExportsVisitor = {
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ReferencedIdentifier(path) {
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const localName = path.node.name;
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if (localName !== "module" && localName !== "exports") return;
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const localBinding = path.scope.getBinding(localName);
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const rootBinding = this.scope.getBinding(localName);
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if (rootBinding !== localBinding || path.parentPath.isObjectProperty({
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value: path.node
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}) && path.parentPath.parentPath.isObjectPattern() || path.parentPath.isAssignmentExpression({
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left: path.node
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}) || path.isAssignmentExpression({
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left: path.node
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})) {
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return;
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}
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path.replaceWith(getAssertion(localName));
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},
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UpdateExpression(path) {
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const arg = path.get("argument");
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if (!arg.isIdentifier()) return;
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const localName = arg.node.name;
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if (localName !== "module" && localName !== "exports") return;
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const localBinding = path.scope.getBinding(localName);
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const rootBinding = this.scope.getBinding(localName);
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if (rootBinding !== localBinding) return;
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path.replaceWith(_core.types.assignmentExpression(path.node.operator[0] + "=", arg.node, getAssertion(localName)));
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},
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AssignmentExpression(path) {
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const left = path.get("left");
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if (left.isIdentifier()) {
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const localName = left.node.name;
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if (localName !== "module" && localName !== "exports") return;
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const localBinding = path.scope.getBinding(localName);
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const rootBinding = this.scope.getBinding(localName);
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if (rootBinding !== localBinding) return;
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const right = path.get("right");
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right.replaceWith(_core.types.sequenceExpression([right.node, getAssertion(localName)]));
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} else if (left.isPattern()) {
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const ids = left.getOuterBindingIdentifiers();
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const localName = Object.keys(ids).find(localName => {
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if (localName !== "module" && localName !== "exports") return false;
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return this.scope.getBinding(localName) === path.scope.getBinding(localName);
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});
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if (localName) {
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const right = path.get("right");
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right.replaceWith(_core.types.sequenceExpression([right.node, getAssertion(localName)]));
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}
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}
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}
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};
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return {
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name: "transform-modules-commonjs",
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pre() {
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this.file.set("@babel/plugin-transform-modules-*", "commonjs");
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if (lazy) (0, _hooks.defineCommonJSHook)(this.file, (0, _lazy.lazyImportsHook)(lazy));
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},
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visitor: {
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["CallExpression" + (api.types.importExpression ? "|ImportExpression" : "")](path) {
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if (!this.file.has("@babel/plugin-proposal-dynamic-import")) return;
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if (path.isCallExpression() && !_core.types.isImport(path.node.callee)) return;
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let {
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scope
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} = path;
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do {
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scope.rename("require");
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} while (scope = scope.parent);
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(0, _dynamicImport.transformDynamicImport)(path, noInterop, this.file);
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},
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Program: {
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exit(path, state) {
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if (!(0, _helperModuleTransforms.isModule)(path)) return;
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path.scope.rename("exports");
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path.scope.rename("module");
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path.scope.rename("require");
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path.scope.rename("__filename");
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path.scope.rename("__dirname");
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if (!allowCommonJSExports) {
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path.traverse(moduleExportsVisitor, {
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scope: path.scope
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});
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}
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let moduleName = (0, _helperModuleTransforms.getModuleName)(this.file.opts, options);
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if (moduleName) moduleName = _core.types.stringLiteral(moduleName);
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const hooks = (0, _hooks.makeInvokers)(this.file);
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const {
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meta,
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headers
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} = (0, _helperModuleTransforms.rewriteModuleStatementsAndPrepareHeader)(path, {
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exportName: "exports",
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constantReexports,
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enumerableModuleMeta,
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strict,
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strictMode,
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allowTopLevelThis,
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noInterop,
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importInterop,
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wrapReference: hooks.wrapReference,
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getWrapperPayload: hooks.getWrapperPayload,
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esNamespaceOnly: typeof state.filename === "string" && /\.mjs$/.test(state.filename) ? mjsStrictNamespace : strictNamespace,
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noIncompleteNsImportDetection,
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filename: this.file.opts.filename
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});
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for (const [source, metadata] of meta.source) {
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const loadExpr = _core.types.callExpression(_core.types.identifier("require"), [_core.types.stringLiteral(source)]);
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let header;
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if ((0, _helperModuleTransforms.isSideEffectImport)(metadata)) {
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if (lazy && metadata.wrap === "function") {
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throw new Error("Assertion failure");
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}
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header = _core.types.expressionStatement(loadExpr);
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} else {
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const init = (0, _helperModuleTransforms.wrapInterop)(path, loadExpr, metadata.interop) || loadExpr;
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if (metadata.wrap) {
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const res = hooks.buildRequireWrapper(metadata.name, init, metadata.wrap, metadata.referenced);
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if (res === false) continue;else header = res;
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}
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header != null ? header : header = _core.template.statement.ast`
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var ${metadata.name} = ${init};
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`;
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}
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header.loc = metadata.loc;
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headers.push(header);
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headers.push(...(0, _helperModuleTransforms.buildNamespaceInitStatements)(meta, metadata, constantReexports, hooks.wrapReference));
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}
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(0, _helperModuleTransforms.ensureStatementsHoisted)(headers);
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path.unshiftContainer("body", headers);
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path.get("body").forEach(path => {
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if (!headers.includes(path.node)) return;
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if (path.isVariableDeclaration()) {
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path.scope.registerDeclaration(path);
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}
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});
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}
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}
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}
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};
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});
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//# sourceMappingURL=index.js.map
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