"use strict"; 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 }); const utils_1 = require("@typescript-eslint/utils"); const util = __importStar(require("../util")); exports.default = util.createRule({ name: 'parameter-properties', meta: { type: 'problem', docs: { description: 'Require or disallow parameter properties in class constructors', recommended: false, }, messages: { preferClassProperty: 'Property {{parameter}} should be declared as a class property.', preferParameterProperty: 'Property {{parameter}} should be declared as a parameter property.', }, schema: [ { type: 'object', properties: { allow: { type: 'array', items: { enum: [ 'readonly', 'private', 'protected', 'public', 'private readonly', 'protected readonly', 'public readonly', ], }, minItems: 1, }, prefer: { enum: ['class-property', 'parameter-property'], }, }, additionalProperties: false, }, ], }, defaultOptions: [ { allow: [], prefer: 'class-property', }, ], create(context, [{ allow = [], prefer = 'class-property' }]) { /** * Gets the modifiers of `node`. * @param node the node to be inspected. */ function getModifiers(node) { const modifiers = []; if (node.accessibility) { modifiers.push(node.accessibility); } if (node.readonly) { modifiers.push('readonly'); } return modifiers.filter(Boolean).join(' '); } if (prefer === 'class-property') { return { TSParameterProperty(node) { const modifiers = getModifiers(node); if (!allow.includes(modifiers)) { // HAS to be an identifier or assignment or TSC will throw if (node.parameter.type !== utils_1.AST_NODE_TYPES.Identifier && node.parameter.type !== utils_1.AST_NODE_TYPES.AssignmentPattern) { return; } const name = node.parameter.type === utils_1.AST_NODE_TYPES.Identifier ? node.parameter.name : // has to be an Identifier or TSC will throw an error node.parameter.left.name; context.report({ node, messageId: 'preferClassProperty', data: { parameter: name, }, }); } }, }; } const propertyNodesByNameStack = []; function getNodesByName(name) { const propertyNodesByName = propertyNodesByNameStack[propertyNodesByNameStack.length - 1]; const existing = propertyNodesByName.get(name); if (existing) { return existing; } const created = {}; propertyNodesByName.set(name, created); return created; } const sourceCode = context.getSourceCode(); function typeAnnotationsMatch(classProperty, constructorParameter) { if (!classProperty.typeAnnotation || !constructorParameter.typeAnnotation) { return (classProperty.typeAnnotation === constructorParameter.typeAnnotation); } return (sourceCode.getText(classProperty.typeAnnotation) === sourceCode.getText(constructorParameter.typeAnnotation)); } return { 'ClassDeclaration, ClassExpression'() { propertyNodesByNameStack.push(new Map()); }, ':matches(ClassDeclaration, ClassExpression):exit'() { const propertyNodesByName = propertyNodesByNameStack.pop(); for (const [name, nodes] of propertyNodesByName) { if (nodes.classProperty && nodes.constructorAssignment && nodes.constructorParameter && typeAnnotationsMatch(nodes.classProperty, nodes.constructorParameter)) { context.report({ data: { parameter: name, }, messageId: 'preferParameterProperty', node: nodes.classProperty, }); } } }, ClassBody(node) { for (const element of node.body) { if (element.type === utils_1.AST_NODE_TYPES.PropertyDefinition && element.key.type === utils_1.AST_NODE_TYPES.Identifier && !element.value && !allow.includes(getModifiers(element))) { getNodesByName(element.key.name).classProperty = element; } } }, 'MethodDefinition[kind="constructor"]'(node) { var _a, _b; for (const parameter of node.value.params) { if (parameter.type === utils_1.AST_NODE_TYPES.Identifier) { getNodesByName(parameter.name).constructorParameter = parameter; } } for (const statement of (_b = (_a = node.value.body) === null || _a === void 0 ? void 0 : _a.body) !== null && _b !== void 0 ? _b : []) { if (statement.type !== utils_1.AST_NODE_TYPES.ExpressionStatement || statement.expression.type !== utils_1.AST_NODE_TYPES.AssignmentExpression || statement.expression.left.type !== utils_1.AST_NODE_TYPES.MemberExpression || statement.expression.left.object.type !== utils_1.AST_NODE_TYPES.ThisExpression || statement.expression.left.property.type !== utils_1.AST_NODE_TYPES.Identifier || statement.expression.right.type !== utils_1.AST_NODE_TYPES.Identifier) { break; } getNodesByName(statement.expression.right.name).constructorAssignment = statement.expression; } }, }; }, }); //# sourceMappingURL=parameter-properties.js.map