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393 lines
12 KiB
393 lines
12 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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Object.defineProperty(exports, "buildDynamicImport", {
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enumerable: true,
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get: function () {
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return _dynamicImport.buildDynamicImport;
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}
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});
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exports.buildNamespaceInitStatements = buildNamespaceInitStatements;
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exports.ensureStatementsHoisted = ensureStatementsHoisted;
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Object.defineProperty(exports, "getDynamicImportSource", {
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enumerable: true,
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get: function () {
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return _dynamicImport.getDynamicImportSource;
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}
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});
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Object.defineProperty(exports, "getModuleName", {
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enumerable: true,
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get: function () {
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return _getModuleName.default;
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}
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});
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Object.defineProperty(exports, "hasExports", {
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enumerable: true,
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get: function () {
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return _normalizeAndLoadMetadata.hasExports;
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}
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});
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Object.defineProperty(exports, "isModule", {
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enumerable: true,
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get: function () {
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return _helperModuleImports.isModule;
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}
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});
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Object.defineProperty(exports, "isSideEffectImport", {
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enumerable: true,
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get: function () {
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return _normalizeAndLoadMetadata.isSideEffectImport;
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}
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});
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exports.rewriteModuleStatementsAndPrepareHeader = rewriteModuleStatementsAndPrepareHeader;
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Object.defineProperty(exports, "rewriteThis", {
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enumerable: true,
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get: function () {
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return _rewriteThis.default;
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}
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});
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exports.wrapInterop = wrapInterop;
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var _assert = require("assert");
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var _t = require("@babel/types");
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var _template = require("@babel/template");
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var _helperModuleImports = require("@babel/helper-module-imports");
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var _rewriteThis = require("./rewrite-this");
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var _rewriteLiveReferences = require("./rewrite-live-references");
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var _normalizeAndLoadMetadata = require("./normalize-and-load-metadata");
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var _dynamicImport = require("./dynamic-import");
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var _getModuleName = require("./get-module-name");
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const {
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booleanLiteral,
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callExpression,
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cloneNode,
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directive,
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directiveLiteral,
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expressionStatement,
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identifier,
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isIdentifier,
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memberExpression,
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stringLiteral,
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valueToNode,
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variableDeclaration,
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variableDeclarator
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} = _t;
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function rewriteModuleStatementsAndPrepareHeader(path, {
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loose,
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exportName,
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strict,
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allowTopLevelThis,
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strictMode,
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noInterop,
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importInterop = noInterop ? "none" : "babel",
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lazy,
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esNamespaceOnly,
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filename,
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constantReexports = loose,
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enumerableModuleMeta = loose,
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noIncompleteNsImportDetection
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}) {
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(0, _normalizeAndLoadMetadata.validateImportInteropOption)(importInterop);
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_assert((0, _helperModuleImports.isModule)(path), "Cannot process module statements in a script");
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path.node.sourceType = "script";
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const meta = (0, _normalizeAndLoadMetadata.default)(path, exportName, {
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importInterop,
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initializeReexports: constantReexports,
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lazy,
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esNamespaceOnly,
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filename
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});
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if (!allowTopLevelThis) {
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(0, _rewriteThis.default)(path);
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}
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(0, _rewriteLiveReferences.default)(path, meta);
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if (strictMode !== false) {
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const hasStrict = path.node.directives.some(directive => {
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return directive.value.value === "use strict";
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});
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if (!hasStrict) {
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path.unshiftContainer("directives", directive(directiveLiteral("use strict")));
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}
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}
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const headers = [];
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if ((0, _normalizeAndLoadMetadata.hasExports)(meta) && !strict) {
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headers.push(buildESModuleHeader(meta, enumerableModuleMeta));
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}
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const nameList = buildExportNameListDeclaration(path, meta);
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if (nameList) {
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meta.exportNameListName = nameList.name;
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headers.push(nameList.statement);
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}
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headers.push(...buildExportInitializationStatements(path, meta, constantReexports, noIncompleteNsImportDetection));
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return {
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meta,
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headers
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};
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}
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function ensureStatementsHoisted(statements) {
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statements.forEach(header => {
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header._blockHoist = 3;
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});
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}
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function wrapInterop(programPath, expr, type) {
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if (type === "none") {
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return null;
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}
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if (type === "node-namespace") {
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return callExpression(programPath.hub.addHelper("interopRequireWildcard"), [expr, booleanLiteral(true)]);
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} else if (type === "node-default") {
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return null;
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}
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let helper;
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if (type === "default") {
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helper = "interopRequireDefault";
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} else if (type === "namespace") {
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helper = "interopRequireWildcard";
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} else {
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throw new Error(`Unknown interop: ${type}`);
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}
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return callExpression(programPath.hub.addHelper(helper), [expr]);
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}
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function buildNamespaceInitStatements(metadata, sourceMetadata, constantReexports = false) {
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const statements = [];
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let srcNamespace = identifier(sourceMetadata.name);
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if (sourceMetadata.lazy) srcNamespace = callExpression(srcNamespace, []);
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for (const localName of sourceMetadata.importsNamespace) {
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if (localName === sourceMetadata.name) continue;
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statements.push(_template.default.statement`var NAME = SOURCE;`({
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NAME: localName,
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SOURCE: cloneNode(srcNamespace)
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}));
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}
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if (constantReexports) {
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statements.push(...buildReexportsFromMeta(metadata, sourceMetadata, true));
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}
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for (const exportName of sourceMetadata.reexportNamespace) {
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statements.push((sourceMetadata.lazy ? _template.default.statement`
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Object.defineProperty(EXPORTS, "NAME", {
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enumerable: true,
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get: function() {
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return NAMESPACE;
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}
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});
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` : _template.default.statement`EXPORTS.NAME = NAMESPACE;`)({
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EXPORTS: metadata.exportName,
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NAME: exportName,
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NAMESPACE: cloneNode(srcNamespace)
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}));
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}
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if (sourceMetadata.reexportAll) {
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const statement = buildNamespaceReexport(metadata, cloneNode(srcNamespace), constantReexports);
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statement.loc = sourceMetadata.reexportAll.loc;
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statements.push(statement);
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}
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return statements;
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}
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const ReexportTemplate = {
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constant: _template.default.statement`EXPORTS.EXPORT_NAME = NAMESPACE_IMPORT;`,
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constantComputed: _template.default.statement`EXPORTS["EXPORT_NAME"] = NAMESPACE_IMPORT;`,
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spec: _template.default.statement`
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Object.defineProperty(EXPORTS, "EXPORT_NAME", {
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enumerable: true,
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get: function() {
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return NAMESPACE_IMPORT;
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},
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});
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`
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};
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function buildReexportsFromMeta(meta, metadata, constantReexports) {
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const namespace = metadata.lazy ? callExpression(identifier(metadata.name), []) : identifier(metadata.name);
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const {
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stringSpecifiers
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} = meta;
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return Array.from(metadata.reexports, ([exportName, importName]) => {
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let NAMESPACE_IMPORT = cloneNode(namespace);
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if (importName === "default" && metadata.interop === "node-default") {
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} else if (stringSpecifiers.has(importName)) {
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NAMESPACE_IMPORT = memberExpression(NAMESPACE_IMPORT, stringLiteral(importName), true);
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} else {
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NAMESPACE_IMPORT = memberExpression(NAMESPACE_IMPORT, identifier(importName));
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}
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const astNodes = {
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EXPORTS: meta.exportName,
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EXPORT_NAME: exportName,
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NAMESPACE_IMPORT
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};
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if (constantReexports || isIdentifier(NAMESPACE_IMPORT)) {
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if (stringSpecifiers.has(exportName)) {
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return ReexportTemplate.constantComputed(astNodes);
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} else {
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return ReexportTemplate.constant(astNodes);
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}
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} else {
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return ReexportTemplate.spec(astNodes);
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}
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});
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}
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function buildESModuleHeader(metadata, enumerableModuleMeta = false) {
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return (enumerableModuleMeta ? _template.default.statement`
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EXPORTS.__esModule = true;
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` : _template.default.statement`
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Object.defineProperty(EXPORTS, "__esModule", {
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value: true,
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});
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`)({
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EXPORTS: metadata.exportName
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});
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}
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function buildNamespaceReexport(metadata, namespace, constantReexports) {
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return (constantReexports ? _template.default.statement`
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Object.keys(NAMESPACE).forEach(function(key) {
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if (key === "default" || key === "__esModule") return;
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VERIFY_NAME_LIST;
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if (key in EXPORTS && EXPORTS[key] === NAMESPACE[key]) return;
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EXPORTS[key] = NAMESPACE[key];
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});
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` :
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_template.default.statement`
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Object.keys(NAMESPACE).forEach(function(key) {
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if (key === "default" || key === "__esModule") return;
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VERIFY_NAME_LIST;
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if (key in EXPORTS && EXPORTS[key] === NAMESPACE[key]) return;
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Object.defineProperty(EXPORTS, key, {
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enumerable: true,
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get: function() {
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return NAMESPACE[key];
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},
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});
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});
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`)({
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NAMESPACE: namespace,
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EXPORTS: metadata.exportName,
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VERIFY_NAME_LIST: metadata.exportNameListName ? (0, _template.default)`
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if (Object.prototype.hasOwnProperty.call(EXPORTS_LIST, key)) return;
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`({
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EXPORTS_LIST: metadata.exportNameListName
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}) : null
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});
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}
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function buildExportNameListDeclaration(programPath, metadata) {
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const exportedVars = Object.create(null);
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for (const data of metadata.local.values()) {
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for (const name of data.names) {
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exportedVars[name] = true;
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}
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}
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let hasReexport = false;
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for (const data of metadata.source.values()) {
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for (const exportName of data.reexports.keys()) {
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exportedVars[exportName] = true;
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}
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for (const exportName of data.reexportNamespace) {
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exportedVars[exportName] = true;
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}
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hasReexport = hasReexport || !!data.reexportAll;
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}
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if (!hasReexport || Object.keys(exportedVars).length === 0) return null;
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const name = programPath.scope.generateUidIdentifier("exportNames");
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delete exportedVars.default;
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return {
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name: name.name,
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statement: variableDeclaration("var", [variableDeclarator(name, valueToNode(exportedVars))])
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};
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}
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function buildExportInitializationStatements(programPath, metadata, constantReexports = false, noIncompleteNsImportDetection = false) {
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const initStatements = [];
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for (const [localName, data] of metadata.local) {
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if (data.kind === "import") {
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} else if (data.kind === "hoisted") {
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initStatements.push([
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data.names[0], buildInitStatement(metadata, data.names, identifier(localName))]);
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} else if (!noIncompleteNsImportDetection) {
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for (const exportName of data.names) {
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initStatements.push([exportName, null]);
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}
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}
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}
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for (const data of metadata.source.values()) {
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if (!constantReexports) {
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const reexportsStatements = buildReexportsFromMeta(metadata, data, false);
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const reexports = [...data.reexports.keys()];
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for (let i = 0; i < reexportsStatements.length; i++) {
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initStatements.push([reexports[i], reexportsStatements[i]]);
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}
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}
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if (!noIncompleteNsImportDetection) {
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for (const exportName of data.reexportNamespace) {
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initStatements.push([exportName, null]);
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}
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}
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}
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initStatements.sort(([a], [b]) => {
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if (a < b) return -1;
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if (b < a) return 1;
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return 0;
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});
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const results = [];
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if (noIncompleteNsImportDetection) {
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for (const [, initStatement] of initStatements) {
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results.push(initStatement);
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}
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} else {
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const chunkSize = 100;
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for (let i = 0; i < initStatements.length; i += chunkSize) {
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let uninitializedExportNames = [];
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for (let j = 0; j < chunkSize && i + j < initStatements.length; j++) {
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const [exportName, initStatement] = initStatements[i + j];
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if (initStatement !== null) {
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if (uninitializedExportNames.length > 0) {
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results.push(buildInitStatement(metadata, uninitializedExportNames, programPath.scope.buildUndefinedNode()));
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uninitializedExportNames = [];
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}
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results.push(initStatement);
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} else {
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uninitializedExportNames.push(exportName);
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}
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}
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if (uninitializedExportNames.length > 0) {
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results.push(buildInitStatement(metadata, uninitializedExportNames, programPath.scope.buildUndefinedNode()));
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}
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}
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}
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return results;
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}
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const InitTemplate = {
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computed: _template.default.expression`EXPORTS["NAME"] = VALUE`,
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default: _template.default.expression`EXPORTS.NAME = VALUE`
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};
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function buildInitStatement(metadata, exportNames, initExpr) {
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const {
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stringSpecifiers,
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exportName: EXPORTS
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} = metadata;
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return expressionStatement(exportNames.reduce((acc, exportName) => {
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const params = {
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EXPORTS,
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NAME: exportName,
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VALUE: acc
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};
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if (stringSpecifiers.has(exportName)) {
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return InitTemplate.computed(params);
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} else {
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return InitTemplate.default(params);
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}
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}, initExpr));
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}
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//# sourceMappingURL=index.js.map
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