NET-Web-API-w-Angular/my-app/node_modules/@schematics/angular/utility/ast-utils.js

544 lines
22 KiB
JavaScript
Executable file

"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
*/
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
var desc = Object.getOwnPropertyDescriptor(m, k);
if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
desc = { enumerable: true, get: function() { return m[k]; } };
}
Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
if (k2 === undefined) k2 = k;
o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
o["default"] = v;
});
var __importStar = (this && this.__importStar) || function (mod) {
if (mod && mod.__esModule) return mod;
var result = {};
if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
__setModuleDefault(result, mod);
return result;
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.hasTopLevelIdentifier = exports.addRouteDeclarationToModule = exports.getRouterModuleDeclaration = exports.isImported = exports.addBootstrapToModule = exports.addExportToModule = exports.addProviderToModule = exports.addImportToModule = exports.addDeclarationToModule = exports.addSymbolToNgModuleMetadata = exports.getMetadataField = exports.getDecoratorMetadata = exports.insertAfterLastOccurrence = exports.findNode = exports.getSourceNodes = exports.findNodes = exports.insertImport = void 0;
const core_1 = require("@angular-devkit/core");
const ts = __importStar(require("../third_party/github.com/Microsoft/TypeScript/lib/typescript"));
const change_1 = require("./change");
const eol_1 = require("./eol");
/**
* 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.
* @param alias Alias that the symbol should be inserted under.
* @return Change
*/
function insertImport(source, fileToEdit, symbolName, fileName, isDefault = false, alias) {
const rootNode = source;
const allImports = findNodes(rootNode, ts.isImportDeclaration);
const importExpression = alias ? `${symbolName} as ${alias}` : symbolName;
// get nodes that map to import statements from the file fileName
const relevantImports = allImports.filter((node) => {
return ts.isStringLiteralLike(node.moduleSpecifier) && node.moduleSpecifier.text === fileName;
});
if (relevantImports.length > 0) {
const hasNamespaceImport = relevantImports.some((node) => {
return node.importClause?.namedBindings?.kind === ts.SyntaxKind.NamespaceImport;
});
// if imports * from fileName, don't add symbolName
if (hasNamespaceImport) {
return new change_1.NoopChange();
}
const imports = relevantImports.flatMap((node) => {
return node.importClause?.namedBindings && ts.isNamedImports(node.importClause.namedBindings)
? node.importClause.namedBindings.elements
: [];
});
// insert import if it's not there
if (!imports.some((node) => (node.propertyName || node.name).text === symbolName)) {
const fallbackPos = findNodes(relevantImports[0], ts.SyntaxKind.CloseBraceToken)[0].getStart() ||
findNodes(relevantImports[0], ts.SyntaxKind.FromKeyword)[0].getStart();
return insertAfterLastOccurrence(imports, `, ${importExpression}`, fileToEdit, fallbackPos);
}
return new change_1.NoopChange();
}
// no such import declaration exists
const useStrict = findNodes(rootNode, ts.isStringLiteral).filter((n) => n.text === 'use strict');
let fallbackPos = 0;
if (useStrict.length > 0) {
fallbackPos = useStrict[0].end;
}
const open = isDefault ? '' : '{ ';
const close = isDefault ? '' : ' }';
const eol = (0, eol_1.getEOL)(rootNode.getText());
// if there are no imports or 'use strict' statement, insert import at beginning of file
const insertAtBeginning = allImports.length === 0 && useStrict.length === 0;
const separator = insertAtBeginning ? '' : `;${eol}`;
const toInsert = `${separator}import ${open}${importExpression}${close}` +
` from '${fileName}'${insertAtBeginning ? `;${eol}` : ''}`;
return insertAfterLastOccurrence(allImports, toInsert, fileToEdit, fallbackPos, ts.SyntaxKind.StringLiteral);
}
exports.insertImport = insertImport;
function findNodes(node, kindOrGuard, max = Infinity, recursive = false) {
if (!node || max == 0) {
return [];
}
const test = typeof kindOrGuard === 'function'
? kindOrGuard
: (node) => node.kind === kindOrGuard;
const arr = [];
if (test(node)) {
arr.push(node);
max--;
}
if (max > 0 && (recursive || !test(node))) {
for (const child of node.getChildren()) {
findNodes(child, test, max, recursive).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 {Array<ts.Node>} An array 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) {
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) {
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.isImportDeclaration)
.map((node) => _angularImportsFromNode(node))
.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(ts.isPropertyAssignment)
// 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.text === metadataField;
}));
}
exports.getMetadataField = getMetadataField;
function addSymbolToNgModuleMetadata(source, ngModulePath, metadataField, symbolName, importPath = null) {
const nodes = getDecoratorMetadata(source, 'NgModule', '@angular/core');
const node = nodes[0];
// Find the decorator declaration.
if (!node || !ts.isObjectLiteralExpression(node)) {
return [];
}
// Get all the children property assignment of object literals.
const matchingProperties = getMetadataField(node, metadataField);
if (matchingProperties.length == 0) {
// We haven't found the field in the metadata declaration. Insert a new field.
let position;
let toInsert;
if (node.properties.length == 0) {
position = node.getEnd() - 1;
toInsert = `\n ${metadataField}: [\n${core_1.tags.indentBy(4) `${symbolName}`}\n ]\n`;
}
else {
const childNode = node.properties[node.properties.length - 1];
position = childNode.getEnd();
// Get the indentation of the last element, if any.
const text = childNode.getFullText(source);
const matches = text.match(/^(\r?\n)(\s*)/);
if (matches) {
toInsert =
`,${matches[0]}${metadataField}: [${matches[1]}` +
`${core_1.tags.indentBy(matches[2].length + 2) `${symbolName}`}${matches[0]}]`;
}
else {
toInsert = `, ${metadataField}: [${symbolName}]`;
}
}
if (importPath !== null) {
return [
new change_1.InsertChange(ngModulePath, position, toInsert),
insertImport(source, ngModulePath, symbolName.replace(/\..*$/, ''), importPath),
];
}
else {
return [new change_1.InsertChange(ngModulePath, position, toInsert)];
}
}
const assignment = matchingProperties[0];
// If it's not an array, nothing we can do really.
if (!ts.isPropertyAssignment(assignment) ||
!ts.isArrayLiteralExpression(assignment.initializer)) {
return [];
}
let expression;
const assignmentInit = assignment.initializer;
const elements = assignmentInit.elements;
if (elements.length) {
const symbolsArray = elements.map((node) => core_1.tags.oneLine `${node.getText()}`);
if (symbolsArray.includes(core_1.tags.oneLine `${symbolName}`)) {
return [];
}
expression = elements[elements.length - 1];
}
else {
expression = assignmentInit;
}
let toInsert;
let position = expression.getEnd();
if (ts.isArrayLiteralExpression(expression)) {
// We found the field but it's empty. Insert it just before the `]`.
position--;
toInsert = `\n${core_1.tags.indentBy(4) `${symbolName}`}\n `;
}
else {
// Get the indentation of the last element, if any.
const text = expression.getFullText(source);
const matches = text.match(/^(\r?\n)(\s*)/);
if (matches) {
toInsert = `,${matches[1]}${core_1.tags.indentBy(matches[2].length) `${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 a provider into NgModule. It also imports it.
*/
function addProviderToModule(source, modulePath, classifiedName, importPath) {
return addSymbolToNgModuleMetadata(source, modulePath, 'providers', classifiedName, importPath);
}
exports.addProviderToModule = addProviderToModule;
/**
* 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 export into NgModule. It also imports it.
*/
function addBootstrapToModule(source, modulePath, classifiedName, importPath) {
return addSymbolToNgModuleMetadata(source, modulePath, 'bootstrap', classifiedName, importPath);
}
exports.addBootstrapToModule = addBootstrapToModule;
/**
* Determine if an import already exists.
*/
function isImported(source, classifiedName, importPath) {
const allNodes = getSourceNodes(source);
const matchingNodes = allNodes
.filter(ts.isImportDeclaration)
.filter((imp) => ts.isStringLiteral(imp.moduleSpecifier) && imp.moduleSpecifier.text === importPath)
.filter((imp) => {
if (!imp.importClause) {
return false;
}
const nodes = findNodes(imp.importClause, ts.isImportSpecifier).filter((n) => n.getText() === classifiedName);
return nodes.length > 0;
});
return matchingNodes.length > 0;
}
exports.isImported = isImported;
/**
* Returns the RouterModule declaration from NgModule metadata, if any.
*/
function getRouterModuleDeclaration(source) {
const result = getDecoratorMetadata(source, 'NgModule', '@angular/core');
const node = result[0];
if (!node || !ts.isObjectLiteralExpression(node)) {
return undefined;
}
const matchingProperties = getMetadataField(node, 'imports');
if (!matchingProperties) {
return;
}
const assignment = matchingProperties[0];
if (assignment.initializer.kind !== ts.SyntaxKind.ArrayLiteralExpression) {
return;
}
const arrLiteral = assignment.initializer;
return arrLiteral.elements
.filter((el) => el.kind === ts.SyntaxKind.CallExpression)
.find((el) => el.getText().startsWith('RouterModule'));
}
exports.getRouterModuleDeclaration = getRouterModuleDeclaration;
/**
* Adds a new route declaration to a router module (i.e. has a RouterModule declaration)
*/
function addRouteDeclarationToModule(source, fileToAdd, routeLiteral) {
const routerModuleExpr = getRouterModuleDeclaration(source);
if (!routerModuleExpr) {
throw new Error(`Couldn't find a route declaration in ${fileToAdd}.\n` +
`Use the '--module' option to specify a different routing module.`);
}
const scopeConfigMethodArgs = routerModuleExpr.arguments;
if (!scopeConfigMethodArgs.length) {
const { line } = source.getLineAndCharacterOfPosition(routerModuleExpr.getStart());
throw new Error(`The router module method doesn't have arguments ` + `at line ${line} in ${fileToAdd}`);
}
let routesArr;
const routesArg = scopeConfigMethodArgs[0];
// Check if the route declarations array is
// an inlined argument of RouterModule or a standalone variable
if (ts.isArrayLiteralExpression(routesArg)) {
routesArr = routesArg;
}
else {
const routesVarName = routesArg.getText();
let routesVar;
if (routesArg.kind === ts.SyntaxKind.Identifier) {
routesVar = source.statements.filter(ts.isVariableStatement).find((v) => {
return v.declarationList.declarations[0].name.getText() === routesVarName;
});
}
if (!routesVar) {
const { line } = source.getLineAndCharacterOfPosition(routesArg.getStart());
throw new Error(`No route declaration array was found that corresponds ` +
`to router module at line ${line} in ${fileToAdd}`);
}
routesArr = findNodes(routesVar, ts.SyntaxKind.ArrayLiteralExpression, 1)[0];
}
const occurrencesCount = routesArr.elements.length;
const text = routesArr.getFullText(source);
let route = routeLiteral;
let insertPos = routesArr.elements.pos;
if (occurrencesCount > 0) {
const lastRouteLiteral = [...routesArr.elements].pop();
const lastRouteIsWildcard = ts.isObjectLiteralExpression(lastRouteLiteral) &&
lastRouteLiteral.properties.some((n) => ts.isPropertyAssignment(n) &&
ts.isIdentifier(n.name) &&
n.name.text === 'path' &&
ts.isStringLiteral(n.initializer) &&
n.initializer.text === '**');
const indentation = text.match(/\r?\n(\r?)\s*/) || [];
const routeText = `${indentation[0] || ' '}${routeLiteral}`;
// Add the new route before the wildcard route
// otherwise we'll always redirect to the wildcard route
if (lastRouteIsWildcard) {
insertPos = lastRouteLiteral.pos;
route = `${routeText},`;
}
else {
insertPos = lastRouteLiteral.end;
route = `,${routeText}`;
}
}
return new change_1.InsertChange(fileToAdd, insertPos, route);
}
exports.addRouteDeclarationToModule = addRouteDeclarationToModule;
/** Asserts if the specified node is a named declaration (e.g. class, interface). */
function isNamedNode(node) {
return !!node.name && ts.isIdentifier(node.name);
}
/**
* Determines if a SourceFile has a top-level declaration whose name matches a specific symbol.
* Can be used to avoid conflicts when inserting new imports into a file.
* @param sourceFile File in which to search.
* @param symbolName Name of the symbol to search for.
* @param skipModule Path of the module that the symbol may have been imported from. Used to
* avoid false positives where the same symbol we're looking for may have been imported.
*/
function hasTopLevelIdentifier(sourceFile, symbolName, skipModule = null) {
for (const node of sourceFile.statements) {
if (isNamedNode(node) && node.name.text === symbolName) {
return true;
}
if (ts.isVariableStatement(node) &&
node.declarationList.declarations.some((decl) => {
return isNamedNode(decl) && decl.name.text === symbolName;
})) {
return true;
}
if (ts.isImportDeclaration(node) &&
ts.isStringLiteralLike(node.moduleSpecifier) &&
node.moduleSpecifier.text !== skipModule &&
node.importClause?.namedBindings &&
ts.isNamedImports(node.importClause.namedBindings) &&
node.importClause.namedBindings.elements.some((el) => el.name.text === symbolName)) {
return true;
}
}
return false;
}
exports.hasTopLevelIdentifier = hasTopLevelIdentifier;