diff options
Diffstat (limited to 'node_modules/@babel/helper-module-transforms/lib/index.js')
| -rw-r--r-- | node_modules/@babel/helper-module-transforms/lib/index.js | 396 |
1 files changed, 396 insertions, 0 deletions
diff --git a/node_modules/@babel/helper-module-transforms/lib/index.js b/node_modules/@babel/helper-module-transforms/lib/index.js new file mode 100644 index 0000000..e2d8d4d --- /dev/null +++ b/node_modules/@babel/helper-module-transforms/lib/index.js @@ -0,0 +1,396 @@ +"use strict"; + +Object.defineProperty(exports, "__esModule", { + value: true +}); +Object.defineProperty(exports, "buildDynamicImport", { + enumerable: true, + get: function () { + return _dynamicImport.buildDynamicImport; + } +}); +exports.buildNamespaceInitStatements = buildNamespaceInitStatements; +exports.ensureStatementsHoisted = ensureStatementsHoisted; +Object.defineProperty(exports, "getModuleName", { + enumerable: true, + get: function () { + return _getModuleName.default; + } +}); +Object.defineProperty(exports, "hasExports", { + enumerable: true, + get: function () { + return _normalizeAndLoadMetadata.hasExports; + } +}); +Object.defineProperty(exports, "isModule", { + enumerable: true, + get: function () { + return _helperModuleImports.isModule; + } +}); +Object.defineProperty(exports, "isSideEffectImport", { + enumerable: true, + get: function () { + return _normalizeAndLoadMetadata.isSideEffectImport; + } +}); +exports.rewriteModuleStatementsAndPrepareHeader = rewriteModuleStatementsAndPrepareHeader; +Object.defineProperty(exports, "rewriteThis", { + enumerable: true, + get: function () { + return _rewriteThis.default; + } +}); +exports.wrapInterop = wrapInterop; +var _assert = require("assert"); +var _core = require("@babel/core"); +var _helperModuleImports = require("@babel/helper-module-imports"); +var _rewriteThis = require("./rewrite-this.js"); +var _rewriteLiveReferences = require("./rewrite-live-references.js"); +var _normalizeAndLoadMetadata = require("./normalize-and-load-metadata.js"); +var Lazy = require("./lazy-modules.js"); +var _dynamicImport = require("./dynamic-import.js"); +var _getModuleName = require("./get-module-name.js"); +exports.getDynamicImportSource = require("./dynamic-import").getDynamicImportSource; +function rewriteModuleStatementsAndPrepareHeader(path, { + exportName, + strict, + allowTopLevelThis, + strictMode, + noInterop, + importInterop = noInterop ? "none" : "babel", + lazy, + getWrapperPayload = Lazy.toGetWrapperPayload(lazy != null ? lazy : false), + wrapReference = Lazy.wrapReference, + esNamespaceOnly, + filename, + constantReexports = arguments[1].loose, + enumerableModuleMeta = arguments[1].loose, + noIncompleteNsImportDetection +}) { + (0, _normalizeAndLoadMetadata.validateImportInteropOption)(importInterop); + _assert((0, _helperModuleImports.isModule)(path), "Cannot process module statements in a script"); + path.node.sourceType = "script"; + const meta = (0, _normalizeAndLoadMetadata.default)(path, exportName, { + importInterop, + initializeReexports: constantReexports, + getWrapperPayload, + esNamespaceOnly, + filename + }); + if (!allowTopLevelThis) { + (0, _rewriteThis.default)(path); + } + (0, _rewriteLiveReferences.default)(path, meta, wrapReference); + if (strictMode !== false) { + const hasStrict = path.node.directives.some(directive => { + return directive.value.value === "use strict"; + }); + if (!hasStrict) { + path.unshiftContainer("directives", _core.types.directive(_core.types.directiveLiteral("use strict"))); + } + } + const headers = []; + if ((0, _normalizeAndLoadMetadata.hasExports)(meta) && !strict) { + headers.push(buildESModuleHeader(meta, enumerableModuleMeta)); + } + const nameList = buildExportNameListDeclaration(path, meta); + if (nameList) { + meta.exportNameListName = nameList.name; + headers.push(nameList.statement); + } + headers.push(...buildExportInitializationStatements(path, meta, wrapReference, constantReexports, noIncompleteNsImportDetection)); + return { + meta, + headers + }; +} +function ensureStatementsHoisted(statements) { + statements.forEach(header => { + header._blockHoist = 3; + }); +} +function wrapInterop(programPath, expr, type) { + if (type === "none") { + return null; + } + if (type === "node-namespace") { + return _core.types.callExpression(programPath.hub.addHelper("interopRequireWildcard"), [expr, _core.types.booleanLiteral(true)]); + } else if (type === "node-default") { + return null; + } + let helper; + if (type === "default") { + helper = "interopRequireDefault"; + } else if (type === "namespace") { + helper = "interopRequireWildcard"; + } else { + throw new Error(`Unknown interop: ${type}`); + } + return _core.types.callExpression(programPath.hub.addHelper(helper), [expr]); +} +function buildNamespaceInitStatements(metadata, sourceMetadata, constantReexports = false, wrapReference = Lazy.wrapReference) { + var _wrapReference; + const statements = []; + const srcNamespaceId = _core.types.identifier(sourceMetadata.name); + for (const localName of sourceMetadata.importsNamespace) { + if (localName === sourceMetadata.name) continue; + statements.push(_core.template.statement`var NAME = SOURCE;`({ + NAME: localName, + SOURCE: _core.types.cloneNode(srcNamespaceId) + })); + } + const srcNamespace = (_wrapReference = wrapReference(srcNamespaceId, sourceMetadata.wrap)) != null ? _wrapReference : srcNamespaceId; + if (constantReexports) { + statements.push(...buildReexportsFromMeta(metadata, sourceMetadata, true, wrapReference)); + } + for (const exportName of sourceMetadata.reexportNamespace) { + statements.push((!_core.types.isIdentifier(srcNamespace) ? _core.template.statement` + Object.defineProperty(EXPORTS, "NAME", { + enumerable: true, + get: function() { + return NAMESPACE; + } + }); + ` : _core.template.statement`EXPORTS.NAME = NAMESPACE;`)({ + EXPORTS: metadata.exportName, + NAME: exportName, + NAMESPACE: _core.types.cloneNode(srcNamespace) + })); + } + if (sourceMetadata.reexportAll) { + const statement = buildNamespaceReexport(metadata, _core.types.cloneNode(srcNamespace), constantReexports); + statement.loc = sourceMetadata.reexportAll.loc; + statements.push(statement); + } + return statements; +} +const ReexportTemplate = { + constant: ({ + exports, + exportName, + namespaceImport + }) => _core.template.statement.ast` + ${exports}.${exportName} = ${namespaceImport}; + `, + constantComputed: ({ + exports, + exportName, + namespaceImport + }) => _core.template.statement.ast` + ${exports}["${exportName}"] = ${namespaceImport}; + `, + spec: ({ + exports, + exportName, + namespaceImport + }) => _core.template.statement.ast` + Object.defineProperty(${exports}, "${exportName}", { + enumerable: true, + get: function() { + return ${namespaceImport}; + }, + }); + ` +}; +function buildReexportsFromMeta(meta, metadata, constantReexports, wrapReference) { + var _wrapReference2; + let namespace = _core.types.identifier(metadata.name); + namespace = (_wrapReference2 = wrapReference(namespace, metadata.wrap)) != null ? _wrapReference2 : namespace; + const { + stringSpecifiers + } = meta; + return Array.from(metadata.reexports, ([exportName, importName]) => { + let namespaceImport = _core.types.cloneNode(namespace); + if (importName === "default" && metadata.interop === "node-default") {} else if (stringSpecifiers.has(importName)) { + namespaceImport = _core.types.memberExpression(namespaceImport, _core.types.stringLiteral(importName), true); + } else { + namespaceImport = _core.types.memberExpression(namespaceImport, _core.types.identifier(importName)); + } + const astNodes = { + exports: meta.exportName, + exportName, + namespaceImport + }; + if (constantReexports || _core.types.isIdentifier(namespaceImport)) { + if (stringSpecifiers.has(exportName)) { + return ReexportTemplate.constantComputed(astNodes); + } else { + return ReexportTemplate.constant(astNodes); + } + } else { + return ReexportTemplate.spec(astNodes); + } + }); +} +function buildESModuleHeader(metadata, enumerableModuleMeta = false) { + return (enumerableModuleMeta ? _core.template.statement` + EXPORTS.__esModule = true; + ` : _core.template.statement` + Object.defineProperty(EXPORTS, "__esModule", { + value: true, + }); + `)({ + EXPORTS: metadata.exportName + }); +} +function buildNamespaceReexport(metadata, namespace, constantReexports) { + return (constantReexports ? _core.template.statement` + Object.keys(NAMESPACE).forEach(function(key) { + if (key === "default" || key === "__esModule") return; + VERIFY_NAME_LIST; + if (key in EXPORTS && EXPORTS[key] === NAMESPACE[key]) return; + + EXPORTS[key] = NAMESPACE[key]; + }); + ` : _core.template.statement` + Object.keys(NAMESPACE).forEach(function(key) { + if (key === "default" || key === "__esModule") return; + VERIFY_NAME_LIST; + if (key in EXPORTS && EXPORTS[key] === NAMESPACE[key]) return; + + Object.defineProperty(EXPORTS, key, { + enumerable: true, + get: function() { + return NAMESPACE[key]; + }, + }); + }); + `)({ + NAMESPACE: namespace, + EXPORTS: metadata.exportName, + VERIFY_NAME_LIST: metadata.exportNameListName ? (0, _core.template)` + if (Object.prototype.hasOwnProperty.call(EXPORTS_LIST, key)) return; + `({ + EXPORTS_LIST: metadata.exportNameListName + }) : null + }); +} +function buildExportNameListDeclaration(programPath, metadata) { + const exportedVars = Object.create(null); + for (const data of metadata.local.values()) { + for (const name of data.names) { + exportedVars[name] = true; + } + } + let hasReexport = false; + for (const data of metadata.source.values()) { + for (const exportName of data.reexports.keys()) { + exportedVars[exportName] = true; + } + for (const exportName of data.reexportNamespace) { + exportedVars[exportName] = true; + } + hasReexport = hasReexport || !!data.reexportAll; + } + if (!hasReexport || Object.keys(exportedVars).length === 0) return null; + const name = programPath.scope.generateUidIdentifier("exportNames"); + delete exportedVars.default; + return { + name: name.name, + statement: _core.types.variableDeclaration("var", [_core.types.variableDeclarator(name, _core.types.valueToNode(exportedVars))]) + }; +} +function buildExportInitializationStatements(programPath, metadata, wrapReference, constantReexports = false, noIncompleteNsImportDetection = false) { + const initStatements = []; + for (const [localName, data] of metadata.local) { + if (data.kind === "import") {} else if (data.kind === "hoisted") { + initStatements.push([data.names[0], buildInitStatement(metadata, data.names, _core.types.identifier(localName))]); + } else if (!noIncompleteNsImportDetection) { + for (const exportName of data.names) { + initStatements.push([exportName, null]); + } + } + } + for (const data of metadata.source.values()) { + if (!constantReexports) { + const reexportsStatements = buildReexportsFromMeta(metadata, data, false, wrapReference); + const reexports = [...data.reexports.keys()]; + for (let i = 0; i < reexportsStatements.length; i++) { + initStatements.push([reexports[i], reexportsStatements[i]]); + } + } + if (!noIncompleteNsImportDetection) { + for (const exportName of data.reexportNamespace) { + initStatements.push([exportName, null]); + } + } + } + initStatements.sort(([a], [b]) => { + if (a < b) return -1; + if (b < a) return 1; + return 0; + }); + const results = []; + if (noIncompleteNsImportDetection) { + for (const [, initStatement] of initStatements) { + results.push(initStatement); + } + } else { + const chunkSize = 100; + for (let i = 0; i < initStatements.length; i += chunkSize) { + let uninitializedExportNames = []; + for (let j = 0; j < chunkSize && i + j < initStatements.length; j++) { + const [exportName, initStatement] = initStatements[i + j]; + if (initStatement !== null) { + if (uninitializedExportNames.length > 0) { + results.push(buildInitStatement(metadata, uninitializedExportNames, programPath.scope.buildUndefinedNode())); + uninitializedExportNames = []; + } + results.push(initStatement); + } else { + uninitializedExportNames.push(exportName); + } + } + if (uninitializedExportNames.length > 0) { + results.push(buildInitStatement(metadata, uninitializedExportNames, programPath.scope.buildUndefinedNode())); + } + } + } + return results; +} +const InitTemplate = { + computed: ({ + exports, + name, + value + }) => _core.template.expression.ast`${exports}["${name}"] = ${value}`, + default: ({ + exports, + name, + value + }) => _core.template.expression.ast`${exports}.${name} = ${value}`, + define: ({ + exports, + name, + value + }) => _core.template.expression.ast` + Object.defineProperty(${exports}, "${name}", { + enumerable: true, + value: void 0, + writable: true + })["${name}"] = ${value}` +}; +function buildInitStatement(metadata, exportNames, initExpr) { + const { + stringSpecifiers, + exportName: exports + } = metadata; + return _core.types.expressionStatement(exportNames.reduce((value, name) => { + const params = { + exports, + name, + value + }; + if (name === "__proto__") { + return InitTemplate.define(params); + } + if (stringSpecifiers.has(name)) { + return InitTemplate.computed(params); + } + return InitTemplate.default(params); + }, initExpr)); +} + +//# sourceMappingURL=index.js.map |