| "use strict"; |
| /** |
| * @license |
| * Copyright Google LLC All Rights Reserved. |
| * |
| * Use of this source code is governed by an MIT-style license that can be |
| * found in the LICENSE file at https://angular.io/license |
| */ |
| Object.defineProperty(exports, "__esModule", { value: true }); |
| exports.getAppModulePath = exports.findBootstrapModulePath = exports.findBootstrapModuleCall = exports.addEntryComponentToModule = exports.addExportToModule = exports.addImportToModule = exports.addDeclarationToModule = exports.addSymbolToNgModuleMetadata = exports.getMetadataField = exports.getDecoratorMetadata = exports.insertAfterLastOccurrence = exports.findNode = exports.getSourceNodes = exports.findNodes = exports.insertImport = void 0; |
| // tslint:disable |
| /* |
| * Note: This file contains vendored TypeScript AST utils from "@schematics/angular". |
| * Since there is no canonical place for common utils, and we don't want to use the AST |
| * utils directly from "@schematics/angular" to avoid TypeScript version mismatches, we |
| * copy the needed AST utils until there is a general place for such utility functions. |
| * |
| * Taken from: |
| * (1) https://github.com/angular/angular-cli/blob/30df1470a0f18989db336d50b55a79021ab64c85/packages/schematics/angular/utility/ng-ast-utils.ts |
| * (2) https://github.com/angular/angular-cli/blob/30df1470a0f18989db336d50b55a79021ab64c85/packages/schematics/angular/utility/ast-utils.ts |
| */ |
| const core_1 = require("@angular-devkit/core"); |
| const schematics_1 = require("@angular-devkit/schematics"); |
| const change_1 = require("@schematics/angular/utility/change"); |
| const path_1 = require("path"); |
| const ts = require("typescript"); |
| /** |
| * Add Import `import { symbolName } from fileName` if the import doesn't exit |
| * already. Assumes fileToEdit can be resolved and accessed. |
| * @param fileToEdit (file we want to add import to) |
| * @param symbolName (item to import) |
| * @param fileName (path to the file) |
| * @param isDefault (if true, import follows style for importing default exports) |
| * @return Change |
| */ |
| function insertImport(source, fileToEdit, symbolName, fileName, isDefault = false) { |
| const rootNode = source; |
| const allImports = findNodes(rootNode, ts.SyntaxKind.ImportDeclaration); |
| // get nodes that map to import statements from the file fileName |
| const relevantImports = allImports.filter(node => { |
| // StringLiteral of the ImportDeclaration is the import file (fileName in this case). |
| const importFiles = node.getChildren() |
| .filter(child => child.kind === ts.SyntaxKind.StringLiteral) |
| .map(n => n.text); |
| return importFiles.filter(file => file === fileName).length === 1; |
| }); |
| if (relevantImports.length > 0) { |
| let importsAsterisk = false; |
| // imports from import file |
| const imports = []; |
| relevantImports.forEach(n => { |
| Array.prototype.push.apply(imports, findNodes(n, ts.SyntaxKind.Identifier)); |
| if (findNodes(n, ts.SyntaxKind.AsteriskToken).length > 0) { |
| importsAsterisk = true; |
| } |
| }); |
| // if imports * from fileName, don't add symbolName |
| if (importsAsterisk) { |
| return new change_1.NoopChange(); |
| } |
| const importTextNodes = imports.filter(n => n.text === symbolName); |
| // insert import if it's not there |
| if (importTextNodes.length === 0) { |
| const fallbackPos = findNodes(relevantImports[0], ts.SyntaxKind.CloseBraceToken)[0].getStart() || |
| findNodes(relevantImports[0], ts.SyntaxKind.FromKeyword)[0].getStart(); |
| return insertAfterLastOccurrence(imports, `, ${symbolName}`, fileToEdit, fallbackPos); |
| } |
| return new change_1.NoopChange(); |
| } |
| // no such import declaration exists |
| const useStrict = findNodes(rootNode, ts.SyntaxKind.StringLiteral) |
| .filter((n) => n.text === 'use strict'); |
| let fallbackPos = 0; |
| if (useStrict.length > 0) { |
| fallbackPos = useStrict[0].end; |
| } |
| const open = isDefault ? '' : '{ '; |
| const close = isDefault ? '' : ' }'; |
| // if there are no imports or 'use strict' statement, insert import at beginning of file |
| const insertAtBeginning = allImports.length === 0 && useStrict.length === 0; |
| const separator = insertAtBeginning ? '' : ';\n'; |
| const toInsert = `${separator}import ${open}${symbolName}${close}` + |
| ` from '${fileName}'${insertAtBeginning ? ';\n' : ''}`; |
| return insertAfterLastOccurrence(allImports, toInsert, fileToEdit, fallbackPos, ts.SyntaxKind.StringLiteral); |
| } |
| exports.insertImport = insertImport; |
| /** |
| * Find all nodes from the AST in the subtree of node of SyntaxKind kind. |
| * @param node |
| * @param kind |
| * @param max The maximum number of items to return. |
| * @param recursive Continue looking for nodes of kind recursive until end |
| * the last child even when node of kind has been found. |
| * @return all nodes of kind, or [] if none is found |
| */ |
| function findNodes(node, kind, max = Infinity, recursive = false) { |
| if (!node || max == 0) { |
| return []; |
| } |
| const arr = []; |
| if (node.kind === kind) { |
| arr.push(node); |
| max--; |
| } |
| if (max > 0 && (recursive || node.kind !== kind)) { |
| for (const child of node.getChildren()) { |
| findNodes(child, kind, max).forEach(node => { |
| if (max > 0) { |
| arr.push(node); |
| } |
| max--; |
| }); |
| if (max <= 0) { |
| break; |
| } |
| } |
| } |
| return arr; |
| } |
| exports.findNodes = findNodes; |
| /** |
| * Get all the nodes from a source. |
| * @param sourceFile The source file object. |
| * @returns {Observable<ts.Node>} An observable of all the nodes in the source. |
| */ |
| function getSourceNodes(sourceFile) { |
| const nodes = [sourceFile]; |
| const result = []; |
| while (nodes.length > 0) { |
| const node = nodes.shift(); |
| if (node) { |
| result.push(node); |
| if (node.getChildCount(sourceFile) >= 0) { |
| nodes.unshift(...node.getChildren()); |
| } |
| } |
| } |
| return result; |
| } |
| exports.getSourceNodes = getSourceNodes; |
| function findNode(node, kind, text) { |
| if (node.kind === kind && node.getText() === text) { |
| // throw new Error(node.getText()); |
| return node; |
| } |
| let foundNode = null; |
| ts.forEachChild(node, childNode => { |
| foundNode = foundNode || findNode(childNode, kind, text); |
| }); |
| return foundNode; |
| } |
| exports.findNode = findNode; |
| /** |
| * Helper for sorting nodes. |
| * @return function to sort nodes in increasing order of position in sourceFile |
| */ |
| function nodesByPosition(first, second) { |
| return first.getStart() - second.getStart(); |
| } |
| /** |
| * Insert `toInsert` after the last occurence of `ts.SyntaxKind[nodes[i].kind]` |
| * or after the last of occurence of `syntaxKind` if the last occurence is a sub child |
| * of ts.SyntaxKind[nodes[i].kind] and save the changes in file. |
| * |
| * @param nodes insert after the last occurence of nodes |
| * @param toInsert string to insert |
| * @param file file to insert changes into |
| * @param fallbackPos position to insert if toInsert happens to be the first occurence |
| * @param syntaxKind the ts.SyntaxKind of the subchildren to insert after |
| * @return Change instance |
| * @throw Error if toInsert is first occurence but fall back is not set |
| */ |
| function insertAfterLastOccurrence(nodes, toInsert, file, fallbackPos, syntaxKind) { |
| let lastItem; |
| for (const node of nodes) { |
| if (!lastItem || lastItem.getStart() < node.getStart()) { |
| lastItem = node; |
| } |
| } |
| if (syntaxKind && lastItem) { |
| lastItem = findNodes(lastItem, syntaxKind).sort(nodesByPosition).pop(); |
| } |
| if (!lastItem && fallbackPos == undefined) { |
| throw new Error(`tried to insert ${toInsert} as first occurence with no fallback position`); |
| } |
| const lastItemPosition = lastItem ? lastItem.getEnd() : fallbackPos; |
| return new change_1.InsertChange(file, lastItemPosition, toInsert); |
| } |
| exports.insertAfterLastOccurrence = insertAfterLastOccurrence; |
| function _angularImportsFromNode(node, _sourceFile) { |
| const ms = node.moduleSpecifier; |
| let modulePath; |
| switch (ms.kind) { |
| case ts.SyntaxKind.StringLiteral: |
| modulePath = ms.text; |
| break; |
| default: |
| return {}; |
| } |
| if (!modulePath.startsWith('@angular/')) { |
| return {}; |
| } |
| if (node.importClause) { |
| if (node.importClause.name) { |
| // This is of the form `import Name from 'path'`. Ignore. |
| return {}; |
| } |
| else if (node.importClause.namedBindings) { |
| const nb = node.importClause.namedBindings; |
| if (nb.kind == ts.SyntaxKind.NamespaceImport) { |
| // This is of the form `import * as name from 'path'`. Return `name.`. |
| return { |
| [nb.name.text + '.']: modulePath, |
| }; |
| } |
| else { |
| // This is of the form `import {a,b,c} from 'path'` |
| const namedImports = nb; |
| return namedImports.elements |
| .map((is) => is.propertyName ? is.propertyName.text : is.name.text) |
| .reduce((acc, curr) => { |
| acc[curr] = modulePath; |
| return acc; |
| }, {}); |
| } |
| } |
| return {}; |
| } |
| else { |
| // This is of the form `import 'path';`. Nothing to do. |
| return {}; |
| } |
| } |
| function getDecoratorMetadata(source, identifier, module) { |
| const angularImports = findNodes(source, ts.SyntaxKind.ImportDeclaration) |
| .map((node) => _angularImportsFromNode(node, source)) |
| .reduce((acc, current) => { |
| for (const key of Object.keys(current)) { |
| acc[key] = current[key]; |
| } |
| return acc; |
| }, {}); |
| return getSourceNodes(source) |
| .filter(node => { |
| return node.kind == ts.SyntaxKind.Decorator |
| && node.expression.kind == ts.SyntaxKind.CallExpression; |
| }) |
| .map(node => node.expression) |
| .filter(expr => { |
| if (expr.expression.kind == ts.SyntaxKind.Identifier) { |
| const id = expr.expression; |
| return id.text == identifier && angularImports[id.text] === module; |
| } |
| else if (expr.expression.kind == ts.SyntaxKind.PropertyAccessExpression) { |
| // This covers foo.NgModule when importing * as foo. |
| const paExpr = expr.expression; |
| // If the left expression is not an identifier, just give up at that point. |
| if (paExpr.expression.kind !== ts.SyntaxKind.Identifier) { |
| return false; |
| } |
| const id = paExpr.name.text; |
| const moduleId = paExpr.expression.text; |
| return id === identifier && (angularImports[moduleId + '.'] === module); |
| } |
| return false; |
| }) |
| .filter(expr => expr.arguments[0] |
| && expr.arguments[0].kind == ts.SyntaxKind.ObjectLiteralExpression) |
| .map(expr => expr.arguments[0]); |
| } |
| exports.getDecoratorMetadata = getDecoratorMetadata; |
| function getMetadataField(node, metadataField) { |
| return node.properties |
| .filter(prop => ts.isPropertyAssignment(prop)) |
| // Filter out every fields that's not "metadataField". Also handles string literals |
| // (but not expressions). |
| .filter(({ name }) => { |
| return (ts.isIdentifier(name) || ts.isStringLiteral(name)) |
| && name.getText() === metadataField; |
| }); |
| } |
| exports.getMetadataField = getMetadataField; |
| function addSymbolToNgModuleMetadata(source, ngModulePath, metadataField, symbolName, importPath = null) { |
| const nodes = getDecoratorMetadata(source, 'NgModule', '@angular/core'); |
| let node = nodes[0]; // tslint:disable-line:no-any |
| // Find the decorator declaration. |
| if (!node) { |
| return []; |
| } |
| // Get all the children property assignment of object literals. |
| const matchingProperties = getMetadataField(node, metadataField); |
| // Get the last node of the array literal. |
| if (!matchingProperties) { |
| return []; |
| } |
| if (matchingProperties.length == 0) { |
| // We haven't found the field in the metadata declaration. Insert a new field. |
| const expr = node; |
| let position; |
| let toInsert; |
| if (expr.properties.length == 0) { |
| position = expr.getEnd() - 1; |
| toInsert = ` ${metadataField}: [${symbolName}]\n`; |
| } |
| else { |
| node = expr.properties[expr.properties.length - 1]; |
| position = node.getEnd(); |
| // Get the indentation of the last element, if any. |
| const text = node.getFullText(source); |
| const matches = text.match(/^\r?\n\s*/); |
| if (matches && matches.length > 0) { |
| toInsert = `,${matches[0]}${metadataField}: [${symbolName}]`; |
| } |
| else { |
| toInsert = `, ${metadataField}: [${symbolName}]`; |
| } |
| } |
| if (importPath !== null) { |
| return [ |
| new change_1.InsertChange(ngModulePath, position, toInsert), |
| insertImport(source, ngModulePath, symbolName.replace(/\..*$/, ''), importPath), |
| ]; |
| } |
| else { |
| return [new change_1.InsertChange(ngModulePath, position, toInsert)]; |
| } |
| } |
| const assignment = matchingProperties[0]; |
| // If it's not an array, nothing we can do really. |
| if (assignment.initializer.kind !== ts.SyntaxKind.ArrayLiteralExpression) { |
| return []; |
| } |
| const arrLiteral = assignment.initializer; |
| if (arrLiteral.elements.length == 0) { |
| // Forward the property. |
| node = arrLiteral; |
| } |
| else { |
| node = arrLiteral.elements; |
| } |
| if (!node) { |
| // tslint:disable-next-line: no-console |
| console.error('No app module found. Please add your new class to your component.'); |
| return []; |
| } |
| if (Array.isArray(node)) { |
| const nodeArray = node; |
| const symbolsArray = nodeArray.map(node => node.getText()); |
| if (symbolsArray.includes(symbolName)) { |
| return []; |
| } |
| node = node[node.length - 1]; |
| } |
| let toInsert; |
| let position = node.getEnd(); |
| if (node.kind == ts.SyntaxKind.ObjectLiteralExpression) { |
| // We haven't found the field in the metadata declaration. Insert a new |
| // field. |
| const expr = node; |
| if (expr.properties.length == 0) { |
| position = expr.getEnd() - 1; |
| toInsert = ` ${symbolName}\n`; |
| } |
| else { |
| // Get the indentation of the last element, if any. |
| const text = node.getFullText(source); |
| if (text.match(/^\r?\r?\n/)) { |
| toInsert = `,${text.match(/^\r?\n\s*/)[0]}${symbolName}`; |
| } |
| else { |
| toInsert = `, ${symbolName}`; |
| } |
| } |
| } |
| else if (node.kind == ts.SyntaxKind.ArrayLiteralExpression) { |
| // We found the field but it's empty. Insert it just before the `]`. |
| position--; |
| toInsert = `${symbolName}`; |
| } |
| else { |
| // Get the indentation of the last element, if any. |
| const text = node.getFullText(source); |
| if (text.match(/^\r?\n/)) { |
| toInsert = `,${text.match(/^\r?\n(\r?)\s*/)[0]}${symbolName}`; |
| } |
| else { |
| toInsert = `, ${symbolName}`; |
| } |
| } |
| if (importPath !== null) { |
| return [ |
| new change_1.InsertChange(ngModulePath, position, toInsert), |
| insertImport(source, ngModulePath, symbolName.replace(/\..*$/, ''), importPath), |
| ]; |
| } |
| return [new change_1.InsertChange(ngModulePath, position, toInsert)]; |
| } |
| exports.addSymbolToNgModuleMetadata = addSymbolToNgModuleMetadata; |
| /** |
| * Custom function to insert a declaration (component, pipe, directive) |
| * into NgModule declarations. It also imports the component. |
| */ |
| function addDeclarationToModule(source, modulePath, classifiedName, importPath) { |
| return addSymbolToNgModuleMetadata(source, modulePath, 'declarations', classifiedName, importPath); |
| } |
| exports.addDeclarationToModule = addDeclarationToModule; |
| /** |
| * Custom function to insert an NgModule into NgModule imports. It also imports the module. |
| */ |
| function addImportToModule(source, modulePath, classifiedName, importPath) { |
| return addSymbolToNgModuleMetadata(source, modulePath, 'imports', classifiedName, importPath); |
| } |
| exports.addImportToModule = addImportToModule; |
| /** |
| * Custom function to insert an export into NgModule. It also imports it. |
| */ |
| function addExportToModule(source, modulePath, classifiedName, importPath) { |
| return addSymbolToNgModuleMetadata(source, modulePath, 'exports', classifiedName, importPath); |
| } |
| exports.addExportToModule = addExportToModule; |
| /** |
| * Custom function to insert an entryComponent into NgModule. It also imports it. |
| * @deprecated - Since version 9.0.0 with Ivy, entryComponents is no longer necessary. |
| */ |
| function addEntryComponentToModule(source, modulePath, classifiedName, importPath) { |
| return addSymbolToNgModuleMetadata(source, modulePath, 'entryComponents', classifiedName, importPath); |
| } |
| exports.addEntryComponentToModule = addEntryComponentToModule; |
| function findBootstrapModuleCall(host, mainPath) { |
| const mainBuffer = host.read(mainPath); |
| if (!mainBuffer) { |
| throw new schematics_1.SchematicsException(`Main file (${mainPath}) not found`); |
| } |
| const mainText = mainBuffer.toString('utf-8'); |
| const source = ts.createSourceFile(mainPath, mainText, ts.ScriptTarget.Latest, true); |
| const allNodes = getSourceNodes(source); |
| let bootstrapCall = null; |
| for (const node of allNodes) { |
| let bootstrapCallNode = null; |
| bootstrapCallNode = findNode(node, ts.SyntaxKind.Identifier, 'bootstrapModule'); |
| // Walk up the parent until CallExpression is found. |
| while (bootstrapCallNode && bootstrapCallNode.parent |
| && bootstrapCallNode.parent.kind !== ts.SyntaxKind.CallExpression) { |
| bootstrapCallNode = bootstrapCallNode.parent; |
| } |
| if (bootstrapCallNode !== null && |
| bootstrapCallNode.parent !== undefined && |
| bootstrapCallNode.parent.kind === ts.SyntaxKind.CallExpression) { |
| bootstrapCall = bootstrapCallNode.parent; |
| break; |
| } |
| } |
| return bootstrapCall; |
| } |
| exports.findBootstrapModuleCall = findBootstrapModuleCall; |
| function findBootstrapModulePath(host, mainPath) { |
| const bootstrapCall = findBootstrapModuleCall(host, mainPath); |
| if (!bootstrapCall) { |
| throw new schematics_1.SchematicsException('Bootstrap call not found'); |
| } |
| const bootstrapModule = bootstrapCall.arguments[0]; |
| const mainBuffer = host.read(mainPath); |
| if (!mainBuffer) { |
| throw new schematics_1.SchematicsException(`Client app main file (${mainPath}) not found`); |
| } |
| const mainText = mainBuffer.toString('utf-8'); |
| const source = ts.createSourceFile(mainPath, mainText, ts.ScriptTarget.Latest, true); |
| const allNodes = getSourceNodes(source); |
| const bootstrapModuleRelativePath = allNodes |
| .filter(node => node.kind === ts.SyntaxKind.ImportDeclaration) |
| .filter(imp => { |
| return findNode(imp, ts.SyntaxKind.Identifier, bootstrapModule.getText()); |
| }) |
| .map((imp) => { |
| const modulePathStringLiteral = imp.moduleSpecifier; |
| return modulePathStringLiteral.text; |
| })[0]; |
| return bootstrapModuleRelativePath; |
| } |
| exports.findBootstrapModulePath = findBootstrapModulePath; |
| function getAppModulePath(host, mainPath) { |
| const moduleRelativePath = findBootstrapModulePath(host, mainPath); |
| const mainDir = path_1.dirname(mainPath); |
| const modulePath = core_1.normalize(`/${mainDir}/${moduleRelativePath}.ts`); |
| return modulePath; |
| } |
| exports.getAppModulePath = getAppModulePath; |
| //# 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* @license\n * Copyright Google LLC All Rights Reserved.\n *\n * Use of this source code is governed by an MIT-style license that can be\n * found in the LICENSE file at https://angular.io/license\n */\n\n// tslint:disable\n\n/*\n * Note: This file contains vendored TypeScript AST utils from \"@schematics/angular\".\n * Since there is no canonical place for common utils, and we don't want to use the AST\n * utils directly from \"@schematics/angular\" to avoid TypeScript version mismatches, we\n * copy the needed AST utils until there is a general place for such utility functions.\n *\n * Taken from:\n *   (1) https://github.com/angular/angular-cli/blob/30df1470a0f18989db336d50b55a79021ab64c85/packages/schematics/angular/utility/ng-ast-utils.ts\n *   (2) https://github.com/angular/angular-cli/blob/30df1470a0f18989db336d50b55a79021ab64c85/packages/schematics/angular/utility/ast-utils.ts\n */\n\nimport {normalize} from '@angular-devkit/core';\nimport {SchematicsException, Tree} from '@angular-devkit/schematics';\nimport {Change, InsertChange, NoopChange} from '@schematics/angular/utility/change';\nimport {dirname} from 'path';\n\nimport * as ts from 'typescript';\n\n/**\n * Add Import `import { symbolName } from fileName` if the import doesn't exit\n * already. Assumes fileToEdit can be resolved and accessed.\n * @param fileToEdit (file we want to add import to)\n * @param symbolName (item to import)\n * @param fileName (path to the file)\n * @param isDefault (if true, import follows style for importing default exports)\n * @return Change\n */\nexport function insertImport(source: ts.SourceFile, fileToEdit: string, symbolName: string,\n                             fileName: string, isDefault = false): Change {\n  const rootNode = source;\n  const allImports = findNodes(rootNode, ts.SyntaxKind.ImportDeclaration);\n\n  // get nodes that map to import statements from the file fileName\n  const relevantImports = allImports.filter(node => {\n    // StringLiteral of the ImportDeclaration is the import file (fileName in this case).\n    const importFiles = node.getChildren()\n      .filter(child => child.kind === ts.SyntaxKind.StringLiteral)\n      .map(n => (n as ts.StringLiteral).text);\n\n    return importFiles.filter(file => file === fileName).length === 1;\n  });\n\n  if (relevantImports.length > 0) {\n    let importsAsterisk = false;\n    // imports from import file\n    const imports: ts.Node[] = [];\n    relevantImports.forEach(n => {\n      Array.prototype.push.apply(imports, findNodes(n, ts.SyntaxKind.Identifier));\n      if (findNodes(n, ts.SyntaxKind.AsteriskToken).length > 0) {\n        importsAsterisk = true;\n      }\n    });\n\n    // if imports * from fileName, don't add symbolName\n    if (importsAsterisk) {\n      return new NoopChange();\n    }\n\n    const importTextNodes = imports.filter(n => (n as ts.Identifier).text === symbolName);\n\n    // insert import if it's not there\n    if (importTextNodes.length === 0) {\n      const fallbackPos =\n        findNodes(relevantImports[0], ts.SyntaxKind.CloseBraceToken)[0].getStart() ||\n        findNodes(relevantImports[0], ts.SyntaxKind.FromKeyword)[0].getStart();\n\n      return insertAfterLastOccurrence(imports, `, ${symbolName}`, fileToEdit, fallbackPos);\n    }\n\n    return new NoopChange();\n  }\n\n  // no such import declaration exists\n  const useStrict = findNodes(rootNode, ts.SyntaxKind.StringLiteral)\n    .filter((n: ts.StringLiteral) => n.text === 'use strict');\n  let fallbackPos = 0;\n  if (useStrict.length > 0) {\n    fallbackPos = useStrict[0].end;\n  }\n  const open = isDefault ? '' : '{ ';\n  const close = isDefault ? '' : ' }';\n  // if there are no imports or 'use strict' statement, insert import at beginning of file\n  const insertAtBeginning = allImports.length === 0 && useStrict.length === 0;\n  const separator = insertAtBeginning ? '' : ';\\n';\n  const toInsert = `${separator}import ${open}${symbolName}${close}` +\n    ` from '${fileName}'${insertAtBeginning ? ';\\n' : ''}`;\n\n  return insertAfterLastOccurrence(\n    allImports,\n    toInsert,\n    fileToEdit,\n    fallbackPos,\n    ts.SyntaxKind.StringLiteral,\n  );\n}\n\n\n/**\n * Find all nodes from the AST in the subtree of node of SyntaxKind kind.\n * @param node\n * @param kind\n * @param max The maximum number of items to return.\n * @param recursive Continue looking for nodes of kind recursive until end\n * the last child even when node of kind has been found.\n * @return all nodes of kind, or [] if none is found\n */\nexport function findNodes(node: ts.Node, kind: ts.SyntaxKind, max = Infinity, recursive = false): ts.Node[] {\n  if (!node || max == 0) {\n    return [];\n  }\n\n  const arr: ts.Node[] = [];\n  if (node.kind === kind) {\n    arr.push(node);\n    max--;\n  }\n  if (max > 0 && (recursive || node.kind !== kind)) {\n    for (const child of node.getChildren()) {\n      findNodes(child, kind, max).forEach(node => {\n        if (max > 0) {\n          arr.push(node);\n        }\n        max--;\n      });\n\n      if (max <= 0) {\n        break;\n      }\n    }\n  }\n\n  return arr;\n}\n\n\n/**\n * Get all the nodes from a source.\n * @param sourceFile The source file object.\n * @returns {Observable<ts.Node>} An observable of all the nodes in the source.\n */\nexport function getSourceNodes(sourceFile: ts.SourceFile): ts.Node[] {\n  const nodes: ts.Node[] = [sourceFile];\n  const result: ts.Node[] = [];\n\n  while (nodes.length > 0) {\n    const node = nodes.shift();\n\n    if (node) {\n      result.push(node);\n      if (node.getChildCount(sourceFile) >= 0) {\n        nodes.unshift(...node.getChildren());\n      }\n    }\n  }\n\n  return result;\n}\n\nexport function findNode(node: ts.Node, kind: ts.SyntaxKind, text: string): ts.Node | null {\n  if (node.kind === kind && node.getText() === text) {\n    // throw new Error(node.getText());\n    return node;\n  }\n\n  let foundNode: ts.Node | null = null;\n  ts.forEachChild(node, childNode => {\n    foundNode = foundNode || findNode(childNode, kind, text);\n  });\n\n  return foundNode;\n}\n\n\n/**\n * Helper for sorting nodes.\n * @return function to sort nodes in increasing order of position in sourceFile\n */\nfunction nodesByPosition(first: ts.Node, second: ts.Node): number {\n  return first.getStart() - second.getStart();\n}\n\n\n/**\n * Insert `toInsert` after the last occurence of `ts.SyntaxKind[nodes[i].kind]`\n * or after the last of occurence of `syntaxKind` if the last occurence is a sub child\n * of ts.SyntaxKind[nodes[i].kind] and save the changes in file.\n *\n * @param nodes insert after the last occurence of nodes\n * @param toInsert string to insert\n * @param file file to insert changes into\n * @param fallbackPos position to insert if toInsert happens to be the first occurence\n * @param syntaxKind the ts.SyntaxKind of the subchildren to insert after\n * @return Change instance\n * @throw Error if toInsert is first occurence but fall back is not set\n */\nexport function insertAfterLastOccurrence(nodes: ts.Node[],\n                                          toInsert: string,\n                                          file: string,\n                                          fallbackPos: number,\n                                          syntaxKind?: ts.SyntaxKind): Change {\n  let lastItem: ts.Node | undefined;\n  for (const node of nodes) {\n    if (!lastItem || lastItem.getStart() < node.getStart()) {\n      lastItem = node;\n    }\n  }\n  if (syntaxKind && lastItem) {\n    lastItem = findNodes(lastItem, syntaxKind).sort(nodesByPosition).pop();\n  }\n  if (!lastItem && fallbackPos == undefined) {\n    throw new Error(`tried to insert ${toInsert} as first occurence with no fallback position`);\n  }\n  const lastItemPosition: number = lastItem ? lastItem.getEnd() : fallbackPos;\n\n  return new InsertChange(file, lastItemPosition, toInsert);\n}\n\nfunction _angularImportsFromNode(node: ts.ImportDeclaration,\n                                 _sourceFile: ts.SourceFile): {[name: string]: string} {\n  const ms = node.moduleSpecifier;\n  let modulePath: string;\n  switch (ms.kind) {\n    case ts.SyntaxKind.StringLiteral:\n      modulePath = (ms as ts.StringLiteral).text;\n      break;\n    default:\n      return {};\n  }\n\n  if (!modulePath.startsWith('@angular/')) {\n    return {};\n  }\n\n  if (node.importClause) {\n    if (node.importClause.name) {\n      // This is of the form `import Name from 'path'`. Ignore.\n      return {};\n    } else if (node.importClause.namedBindings) {\n      const nb = node.importClause.namedBindings;\n      if (nb.kind == ts.SyntaxKind.NamespaceImport) {\n        // This is of the form `import * as name from 'path'`. Return `name.`.\n        return {\n          [(nb as ts.NamespaceImport).name.text + '.']: modulePath,\n        };\n      } else {\n        // This is of the form `import {a,b,c} from 'path'`\n        const namedImports = nb as ts.NamedImports;\n\n        return namedImports.elements\n          .map((is: ts.ImportSpecifier) => is.propertyName ? is.propertyName.text : is.name.text)\n          .reduce((acc: {[name: string]: string}, curr: string) => {\n            acc[curr] = modulePath;\n\n            return acc;\n          }, {});\n      }\n    }\n\n    return {};\n  } else {\n    // This is of the form `import 'path';`. Nothing to do.\n    return {};\n  }\n}\n\nexport function getDecoratorMetadata(source: ts.SourceFile, identifier: string,\n                                     module: string): ts.Node[] {\n  const angularImports: {[name: string]: string}\n    = findNodes(source, ts.SyntaxKind.ImportDeclaration)\n    .map((node: ts.ImportDeclaration) => _angularImportsFromNode(node, source))\n    .reduce((acc: {[name: string]: string}, current: {[name: string]: string}) => {\n      for (const key of Object.keys(current)) {\n        acc[key] = current[key];\n      }\n\n      return acc;\n    }, {});\n\n  return getSourceNodes(source)\n    .filter(node => {\n      return node.kind == ts.SyntaxKind.Decorator\n        && (node as ts.Decorator).expression.kind == ts.SyntaxKind.CallExpression;\n    })\n    .map(node => (node as ts.Decorator).expression as ts.CallExpression)\n    .filter(expr => {\n      if (expr.expression.kind == ts.SyntaxKind.Identifier) {\n        const id = expr.expression as ts.Identifier;\n\n        return id.text == identifier && angularImports[id.text] === module;\n      } else if (expr.expression.kind == ts.SyntaxKind.PropertyAccessExpression) {\n        // This covers foo.NgModule when importing * as foo.\n        const paExpr = expr.expression as ts.PropertyAccessExpression;\n        // If the left expression is not an identifier, just give up at that point.\n        if (paExpr.expression.kind !== ts.SyntaxKind.Identifier) {\n          return false;\n        }\n\n        const id = paExpr.name.text;\n        const moduleId = (paExpr.expression as ts.Identifier).text;\n\n        return id === identifier && (angularImports[moduleId + '.'] === module);\n      }\n\n      return false;\n    })\n    .filter(expr => expr.arguments[0]\n      && expr.arguments[0].kind == ts.SyntaxKind.ObjectLiteralExpression)\n    .map(expr => expr.arguments[0] as ts.ObjectLiteralExpression);\n}\n\nexport function getMetadataField(\n  node: ts.ObjectLiteralExpression,\n  metadataField: string,\n): ts.ObjectLiteralElement[] {\n  return node.properties\n    .filter(prop => ts.isPropertyAssignment(prop))\n    // Filter out every fields that's not \"metadataField\". Also handles string literals\n    // (but not expressions).\n    .filter(({ name }: ts.PropertyAssignment) => {\n      return (ts.isIdentifier(name) || ts.isStringLiteral(name))\n        && name.getText() === metadataField;\n    });\n}\n\nexport function addSymbolToNgModuleMetadata(\n  source: ts.SourceFile,\n  ngModulePath: string,\n  metadataField: string,\n  symbolName: string,\n  importPath: string | null = null,\n): Change[] {\n  const nodes = getDecoratorMetadata(source, 'NgModule', '@angular/core');\n  let node: any = nodes[0];  // tslint:disable-line:no-any\n\n  // Find the decorator declaration.\n  if (!node) {\n    return [];\n  }\n\n  // Get all the children property assignment of object literals.\n  const matchingProperties = getMetadataField(\n    node as ts.ObjectLiteralExpression,\n    metadataField,\n  );\n\n  // Get the last node of the array literal.\n  if (!matchingProperties) {\n    return [];\n  }\n  if (matchingProperties.length == 0) {\n    // We haven't found the field in the metadata declaration. Insert a new field.\n    const expr = node as ts.ObjectLiteralExpression;\n    let position: number;\n    let toInsert: string;\n    if (expr.properties.length == 0) {\n      position = expr.getEnd() - 1;\n      toInsert = `  ${metadataField}: [${symbolName}]\\n`;\n    } else {\n      node = expr.properties[expr.properties.length - 1];\n      position = node.getEnd();\n      // Get the indentation of the last element, if any.\n      const text = node.getFullText(source);\n      const matches = text.match(/^\\r?\\n\\s*/);\n      if (matches && matches.length > 0) {\n        toInsert = `,${matches[0]}${metadataField}: [${symbolName}]`;\n      } else {\n        toInsert = `, ${metadataField}: [${symbolName}]`;\n      }\n    }\n    if (importPath !== null) {\n      return [\n        new InsertChange(ngModulePath, position, toInsert),\n        insertImport(source, ngModulePath, symbolName.replace(/\\..*$/, ''), importPath),\n      ];\n    } else {\n      return [new InsertChange(ngModulePath, position, toInsert)];\n    }\n  }\n  const assignment = matchingProperties[0] as ts.PropertyAssignment;\n\n  // If it's not an array, nothing we can do really.\n  if (assignment.initializer.kind !== ts.SyntaxKind.ArrayLiteralExpression) {\n    return [];\n  }\n\n  const arrLiteral = assignment.initializer as ts.ArrayLiteralExpression;\n  if (arrLiteral.elements.length == 0) {\n    // Forward the property.\n    node = arrLiteral;\n  } else {\n    node = arrLiteral.elements;\n  }\n\n  if (!node) {\n    // tslint:disable-next-line: no-console\n    console.error('No app module found. Please add your new class to your component.');\n\n    return [];\n  }\n\n  if (Array.isArray(node)) {\n    const nodeArray = node as {} as Array<ts.Node>;\n    const symbolsArray = nodeArray.map(node => node.getText());\n    if (symbolsArray.includes(symbolName)) {\n      return [];\n    }\n\n    node = node[node.length - 1];\n  }\n\n  let toInsert: string;\n  let position = node.getEnd();\n  if (node.kind == ts.SyntaxKind.ObjectLiteralExpression) {\n    // We haven't found the field in the metadata declaration. Insert a new\n    // field.\n    const expr = node as ts.ObjectLiteralExpression;\n    if (expr.properties.length == 0) {\n      position = expr.getEnd() - 1;\n      toInsert = `  ${symbolName}\\n`;\n    } else {\n      // Get the indentation of the last element, if any.\n      const text = node.getFullText(source);\n      if (text.match(/^\\r?\\r?\\n/)) {\n        toInsert = `,${text.match(/^\\r?\\n\\s*/)[0]}${symbolName}`;\n      } else {\n        toInsert = `, ${symbolName}`;\n      }\n    }\n  } else if (node.kind == ts.SyntaxKind.ArrayLiteralExpression) {\n    // We found the field but it's empty. Insert it just before the `]`.\n    position--;\n    toInsert = `${symbolName}`;\n  } else {\n    // Get the indentation of the last element, if any.\n    const text = node.getFullText(source);\n    if (text.match(/^\\r?\\n/)) {\n      toInsert = `,${text.match(/^\\r?\\n(\\r?)\\s*/)[0]}${symbolName}`;\n    } else {\n      toInsert = `, ${symbolName}`;\n    }\n  }\n  if (importPath !== null) {\n    return [\n      new InsertChange(ngModulePath, position, toInsert),\n      insertImport(source, ngModulePath, symbolName.replace(/\\..*$/, ''), importPath),\n    ];\n  }\n\n  return [new InsertChange(ngModulePath, position, toInsert)];\n}\n\n/**\n * Custom function to insert a declaration (component, pipe, directive)\n * into NgModule declarations. It also imports the component.\n */\nexport function addDeclarationToModule(source: ts.SourceFile,\n                                       modulePath: string, classifiedName: string,\n                                       importPath: string): Change[] {\n  return addSymbolToNgModuleMetadata(\n    source, modulePath, 'declarations', classifiedName, importPath);\n}\n\n/**\n * Custom function to insert an NgModule into NgModule imports. It also imports the module.\n */\nexport function addImportToModule(source: ts.SourceFile,\n                                  modulePath: string, classifiedName: string,\n                                  importPath: string): Change[] {\n\n  return addSymbolToNgModuleMetadata(source, modulePath, 'imports', classifiedName, importPath);\n}\n\n/**\n * Custom function to insert an export into NgModule. It also imports it.\n */\nexport function addExportToModule(source: ts.SourceFile,\n                                  modulePath: string, classifiedName: string,\n                                  importPath: string): Change[] {\n  return addSymbolToNgModuleMetadata(source, modulePath, 'exports', classifiedName, importPath);\n}\n\n/**\n * Custom function to insert an entryComponent into NgModule. It also imports it.\n * @deprecated - Since version 9.0.0 with Ivy, entryComponents is no longer necessary.\n */\nexport function addEntryComponentToModule(source: ts.SourceFile,\n                                          modulePath: string, classifiedName: string,\n                                          importPath: string): Change[] {\n  return addSymbolToNgModuleMetadata(\n    source, modulePath,\n    'entryComponents', classifiedName, importPath,\n  );\n}\n\nexport function findBootstrapModuleCall(host: Tree, mainPath: string): ts.CallExpression | null {\n  const mainBuffer = host.read(mainPath);\n  if (!mainBuffer) {\n    throw new SchematicsException(`Main file (${mainPath}) not found`);\n  }\n  const mainText = mainBuffer.toString('utf-8');\n  const source = ts.createSourceFile(mainPath, mainText, ts.ScriptTarget.Latest, true);\n\n  const allNodes = getSourceNodes(source);\n\n  let bootstrapCall: ts.CallExpression | null = null;\n\n  for (const node of allNodes) {\n\n    let bootstrapCallNode: ts.Node | null = null;\n    bootstrapCallNode = findNode(node, ts.SyntaxKind.Identifier, 'bootstrapModule');\n\n    // Walk up the parent until CallExpression is found.\n    while (bootstrapCallNode && bootstrapCallNode.parent\n    && bootstrapCallNode.parent.kind !== ts.SyntaxKind.CallExpression) {\n\n      bootstrapCallNode = bootstrapCallNode.parent;\n    }\n\n    if (bootstrapCallNode !== null &&\n      bootstrapCallNode.parent !== undefined &&\n      bootstrapCallNode.parent.kind === ts.SyntaxKind.CallExpression) {\n      bootstrapCall = bootstrapCallNode.parent as ts.CallExpression;\n      break;\n    }\n  }\n\n  return bootstrapCall;\n}\n\nexport function findBootstrapModulePath(host: Tree, mainPath: string): string {\n  const bootstrapCall = findBootstrapModuleCall(host, mainPath);\n  if (!bootstrapCall) {\n    throw new SchematicsException('Bootstrap call not found');\n  }\n\n  const bootstrapModule = bootstrapCall.arguments[0];\n\n  const mainBuffer = host.read(mainPath);\n  if (!mainBuffer) {\n    throw new SchematicsException(`Client app main file (${mainPath}) not found`);\n  }\n  const mainText = mainBuffer.toString('utf-8');\n  const source = ts.createSourceFile(mainPath, mainText, ts.ScriptTarget.Latest, true);\n  const allNodes = getSourceNodes(source);\n  const bootstrapModuleRelativePath = allNodes\n    .filter(node => node.kind === ts.SyntaxKind.ImportDeclaration)\n    .filter(imp => {\n      return findNode(imp, ts.SyntaxKind.Identifier, bootstrapModule.getText());\n    })\n    .map((imp: ts.ImportDeclaration) => {\n      const modulePathStringLiteral = imp.moduleSpecifier as ts.StringLiteral;\n\n      return modulePathStringLiteral.text;\n    })[0];\n\n  return bootstrapModuleRelativePath;\n}\n\nexport function getAppModulePath(host: Tree, mainPath: string): string {\n  const moduleRelativePath = findBootstrapModulePath(host, mainPath);\n  const mainDir = dirname(mainPath);\n  const modulePath = normalize(`/${mainDir}/${moduleRelativePath}.ts`);\n\n  return modulePath;\n}\n"]} |
