mirror of
https://github.com/Sevichecc/Urara-Blog.git
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269 lines
No EOL
11 KiB
Text
269 lines
No EOL
11 KiB
Text
"use strict";
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var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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var desc = Object.getOwnPropertyDescriptor(m, k);
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if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
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desc = { enumerable: true, get: function() { return m[k]; } };
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}
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Object.defineProperty(o, k2, desc);
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}) : (function(o, m, k, k2) {
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if (k2 === undefined) k2 = k;
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o[k2] = m[k];
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}));
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var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
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Object.defineProperty(o, "default", { enumerable: true, value: v });
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}) : function(o, v) {
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o["default"] = v;
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});
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var __importStar = (this && this.__importStar) || function (mod) {
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if (mod && mod.__esModule) return mod;
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var result = {};
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if (mod != null) for (var k in mod) if (k !== "default" && Object.prototype.hasOwnProperty.call(mod, k)) __createBinding(result, mod, k);
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__setModuleDefault(result, mod);
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return result;
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};
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Object.defineProperty(exports, "__esModule", { value: true });
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const tsutils = __importStar(require("tsutils"));
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const ts = __importStar(require("typescript"));
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const util = __importStar(require("../util"));
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const util_1 = require("../util");
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const utils_1 = require("@typescript-eslint/utils");
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const functionScopeBoundaries = [
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utils_1.AST_NODE_TYPES.ArrowFunctionExpression,
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utils_1.AST_NODE_TYPES.FunctionDeclaration,
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utils_1.AST_NODE_TYPES.FunctionExpression,
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utils_1.AST_NODE_TYPES.MethodDefinition,
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].join(', ');
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exports.default = util.createRule({
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name: 'prefer-readonly',
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meta: {
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docs: {
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description: "Require private members to be marked as `readonly` if they're never modified outside of the constructor",
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recommended: false,
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requiresTypeChecking: true,
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},
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fixable: 'code',
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messages: {
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preferReadonly: "Member '{{name}}' is never reassigned; mark it as `readonly`.",
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},
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schema: [
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{
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allowAdditionalProperties: false,
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properties: {
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onlyInlineLambdas: {
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type: 'boolean',
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},
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},
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type: 'object',
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},
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],
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type: 'suggestion',
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},
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defaultOptions: [{ onlyInlineLambdas: false }],
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create(context, [{ onlyInlineLambdas }]) {
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const parserServices = util.getParserServices(context);
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const checker = parserServices.program.getTypeChecker();
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const classScopeStack = [];
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function handlePropertyAccessExpression(node, parent, classScope) {
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if (ts.isBinaryExpression(parent)) {
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handleParentBinaryExpression(node, parent, classScope);
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return;
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}
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if (ts.isDeleteExpression(parent) || isDestructuringAssignment(node)) {
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classScope.addVariableModification(node);
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return;
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}
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if (ts.isPostfixUnaryExpression(parent) ||
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ts.isPrefixUnaryExpression(parent)) {
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handleParentPostfixOrPrefixUnaryExpression(parent, classScope);
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}
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}
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function handleParentBinaryExpression(node, parent, classScope) {
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if (parent.left === node &&
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tsutils.isAssignmentKind(parent.operatorToken.kind)) {
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classScope.addVariableModification(node);
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}
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}
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function handleParentPostfixOrPrefixUnaryExpression(node, classScope) {
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if (node.operator === ts.SyntaxKind.PlusPlusToken ||
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node.operator === ts.SyntaxKind.MinusMinusToken) {
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classScope.addVariableModification(node.operand);
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}
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}
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function isDestructuringAssignment(node) {
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let current = node.parent;
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while (current) {
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const parent = current.parent;
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if (ts.isObjectLiteralExpression(parent) ||
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ts.isArrayLiteralExpression(parent) ||
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ts.isSpreadAssignment(parent) ||
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(ts.isSpreadElement(parent) &&
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ts.isArrayLiteralExpression(parent.parent))) {
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current = parent;
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}
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else if (ts.isBinaryExpression(parent)) {
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return (parent.left === current &&
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parent.operatorToken.kind === ts.SyntaxKind.EqualsToken);
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}
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else {
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break;
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}
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}
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return false;
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}
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function isFunctionScopeBoundaryInStack(node) {
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if (classScopeStack.length === 0) {
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return false;
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}
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const tsNode = parserServices.esTreeNodeToTSNodeMap.get(node);
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if (ts.isConstructorDeclaration(tsNode)) {
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return false;
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}
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return tsutils.isFunctionScopeBoundary(tsNode);
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}
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function getEsNodesFromViolatingNode(violatingNode) {
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if (ts.isParameterPropertyDeclaration(violatingNode, violatingNode.parent)) {
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return {
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esNode: parserServices.tsNodeToESTreeNodeMap.get(violatingNode.name),
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nameNode: parserServices.tsNodeToESTreeNodeMap.get(violatingNode.name),
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};
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}
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return {
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esNode: parserServices.tsNodeToESTreeNodeMap.get(violatingNode),
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nameNode: parserServices.tsNodeToESTreeNodeMap.get(violatingNode.name),
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};
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}
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return {
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'ClassDeclaration, ClassExpression'(node) {
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classScopeStack.push(new ClassScope(checker, parserServices.esTreeNodeToTSNodeMap.get(node), onlyInlineLambdas));
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},
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'ClassDeclaration, ClassExpression:exit'() {
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const finalizedClassScope = classScopeStack.pop();
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const sourceCode = context.getSourceCode();
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for (const violatingNode of finalizedClassScope.finalizeUnmodifiedPrivateNonReadonlys()) {
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const { esNode, nameNode } = getEsNodesFromViolatingNode(violatingNode);
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context.report({
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data: {
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name: sourceCode.getText(nameNode),
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},
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fix: fixer => fixer.insertTextBefore(nameNode, 'readonly '),
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messageId: 'preferReadonly',
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node: esNode,
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});
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}
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},
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MemberExpression(node) {
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if (classScopeStack.length !== 0 && !node.computed) {
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const tsNode = parserServices.esTreeNodeToTSNodeMap.get(node);
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handlePropertyAccessExpression(tsNode, tsNode.parent, classScopeStack[classScopeStack.length - 1]);
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}
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},
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[functionScopeBoundaries](node) {
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if (utils_1.ASTUtils.isConstructor(node)) {
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classScopeStack[classScopeStack.length - 1].enterConstructor(parserServices.esTreeNodeToTSNodeMap.get(node));
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}
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else if (isFunctionScopeBoundaryInStack(node)) {
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classScopeStack[classScopeStack.length - 1].enterNonConstructor();
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}
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},
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[`${functionScopeBoundaries}:exit`](node) {
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if (utils_1.ASTUtils.isConstructor(node)) {
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classScopeStack[classScopeStack.length - 1].exitConstructor();
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}
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else if (isFunctionScopeBoundaryInStack(node)) {
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classScopeStack[classScopeStack.length - 1].exitNonConstructor();
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}
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},
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};
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},
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});
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const OUTSIDE_CONSTRUCTOR = -1;
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const DIRECTLY_INSIDE_CONSTRUCTOR = 0;
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class ClassScope {
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constructor(checker, classNode, onlyInlineLambdas) {
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this.checker = checker;
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this.onlyInlineLambdas = onlyInlineLambdas;
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this.privateModifiableMembers = new Map();
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this.privateModifiableStatics = new Map();
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this.memberVariableModifications = new Set();
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this.staticVariableModifications = new Set();
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this.constructorScopeDepth = OUTSIDE_CONSTRUCTOR;
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const classType = checker.getTypeAtLocation(classNode);
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if (tsutils.isIntersectionType(classType)) {
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this.classType = classType.types[0];
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}
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else {
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this.classType = classType;
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}
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for (const member of classNode.members) {
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if (ts.isPropertyDeclaration(member)) {
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this.addDeclaredVariable(member);
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}
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}
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}
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addDeclaredVariable(node) {
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if (!tsutils.isModifierFlagSet(node, ts.ModifierFlags.Private) ||
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tsutils.isModifierFlagSet(node, ts.ModifierFlags.Readonly) ||
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ts.isComputedPropertyName(node.name)) {
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return;
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}
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if (this.onlyInlineLambdas &&
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node.initializer !== undefined &&
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!ts.isArrowFunction(node.initializer)) {
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return;
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}
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(tsutils.isModifierFlagSet(node, ts.ModifierFlags.Static)
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? this.privateModifiableStatics
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: this.privateModifiableMembers).set(node.name.getText(), node);
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}
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addVariableModification(node) {
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const modifierType = this.checker.getTypeAtLocation(node.expression);
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if (!modifierType.getSymbol() ||
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!(0, util_1.typeIsOrHasBaseType)(modifierType, this.classType)) {
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return;
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}
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const modifyingStatic = tsutils.isObjectType(modifierType) &&
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tsutils.isObjectFlagSet(modifierType, ts.ObjectFlags.Anonymous);
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if (!modifyingStatic &&
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this.constructorScopeDepth === DIRECTLY_INSIDE_CONSTRUCTOR) {
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return;
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}
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(modifyingStatic
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? this.staticVariableModifications
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: this.memberVariableModifications).add(node.name.text);
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}
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enterConstructor(node) {
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this.constructorScopeDepth = DIRECTLY_INSIDE_CONSTRUCTOR;
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for (const parameter of node.parameters) {
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if (tsutils.isModifierFlagSet(parameter, ts.ModifierFlags.Private)) {
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this.addDeclaredVariable(parameter);
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}
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}
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}
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exitConstructor() {
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this.constructorScopeDepth = OUTSIDE_CONSTRUCTOR;
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}
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enterNonConstructor() {
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if (this.constructorScopeDepth !== OUTSIDE_CONSTRUCTOR) {
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this.constructorScopeDepth += 1;
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}
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}
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exitNonConstructor() {
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if (this.constructorScopeDepth !== OUTSIDE_CONSTRUCTOR) {
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this.constructorScopeDepth -= 1;
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}
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}
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finalizeUnmodifiedPrivateNonReadonlys() {
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this.memberVariableModifications.forEach(variableName => {
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this.privateModifiableMembers.delete(variableName);
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});
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this.staticVariableModifications.forEach(variableName => {
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this.privateModifiableStatics.delete(variableName);
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});
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return [
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...Array.from(this.privateModifiableMembers.values()),
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...Array.from(this.privateModifiableStatics.values()),
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];
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}
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}
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//# sourceMappingURL=prefer-readonly.js.map |