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222 lines
7.8 KiB
222 lines
7.8 KiB
"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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var _helperPluginUtils = require("@babel/helper-plugin-utils"); |
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var _helperModuleTransforms = require("@babel/helper-module-transforms"); |
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var _helperSimpleAccess = require("@babel/helper-simple-access"); |
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var _core = require("@babel/core"); |
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var _utils = require("babel-plugin-dynamic-import-node/utils"); |
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var _default = (0, _helperPluginUtils.declare)((api, options) => { |
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var _api$assumption, _api$assumption2, _api$assumption3; |
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api.assertVersion(7); |
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const transformImportCall = (0, _utils.createDynamicImportTransform)(api); |
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const { |
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strictNamespace = false, |
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mjsStrictNamespace = strictNamespace, |
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allowTopLevelThis, |
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strict, |
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strictMode, |
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noInterop, |
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importInterop, |
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lazy = false, |
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allowCommonJSExports = true, |
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loose = false |
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} = options; |
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const constantReexports = (_api$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).filter(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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})[0]; |
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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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}, |
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visitor: { |
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CallExpression(path) { |
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if (!this.file.has("@babel/plugin-proposal-dynamic-import")) return; |
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if (!path.get("callee").isImport()) 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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transformImportCall(this, path.get("callee")); |
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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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(0, _helperSimpleAccess.default)(path, new Set(["module", "exports"]), false); |
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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 { |
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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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lazy, |
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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 (metadata.lazy) throw new Error("Assertion failure"); |
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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.lazy) { |
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header = _core.template.statement.ast` |
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function ${metadata.name}() { |
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const data = ${init}; |
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${metadata.name} = function(){ return data; }; |
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return data; |
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} |
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`; |
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} else { |
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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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} |
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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)); |
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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.indexOf(path.node) === -1) 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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exports.default = _default; |