169 lines
		
	
	
		
			6.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
			
		
		
	
	
			169 lines
		
	
	
		
			6.2 KiB
		
	
	
	
		
			JavaScript
		
	
	
	
	
	
| /**
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|  * @fileoverview Rule to disallow certain object properties
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|  * @author Will Klein & Eli White
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|  */
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| 
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| "use strict";
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| 
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| const astUtils = require("./utils/ast-utils");
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| 
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| //------------------------------------------------------------------------------
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| // Rule Definition
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| //------------------------------------------------------------------------------
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| 
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| /** @type {import('../shared/types').Rule} */
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| module.exports = {
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|     meta: {
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|         type: "suggestion",
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| 
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|         docs: {
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|             description: "Disallow certain properties on certain objects",
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|             recommended: false,
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|             url: "https://eslint.org/docs/latest/rules/no-restricted-properties"
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|         },
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| 
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|         schema: {
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|             type: "array",
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|             items: {
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|                 anyOf: [ // `object` and `property` are both optional, but at least one of them must be provided.
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|                     {
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|                         type: "object",
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|                         properties: {
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|                             object: {
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|                                 type: "string"
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|                             },
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|                             property: {
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|                                 type: "string"
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|                             },
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|                             message: {
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|                                 type: "string"
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|                             }
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|                         },
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|                         additionalProperties: false,
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|                         required: ["object"]
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|                     },
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|                     {
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|                         type: "object",
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|                         properties: {
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|                             object: {
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|                                 type: "string"
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|                             },
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|                             property: {
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|                                 type: "string"
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|                             },
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|                             message: {
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|                                 type: "string"
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|                             }
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|                         },
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|                         additionalProperties: false,
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|                         required: ["property"]
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|                     }
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|                 ]
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|             },
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|             uniqueItems: true
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|         },
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| 
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|         messages: {
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|             // eslint-disable-next-line eslint-plugin/report-message-format -- Custom message might not end in a period
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|             restrictedObjectProperty: "'{{objectName}}.{{propertyName}}' is restricted from being used.{{message}}",
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|             // eslint-disable-next-line eslint-plugin/report-message-format -- Custom message might not end in a period
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|             restrictedProperty: "'{{propertyName}}' is restricted from being used.{{message}}"
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|         }
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|     },
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| 
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|     create(context) {
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|         const restrictedCalls = context.options;
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| 
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|         if (restrictedCalls.length === 0) {
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|             return {};
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|         }
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| 
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|         const restrictedProperties = new Map();
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|         const globallyRestrictedObjects = new Map();
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|         const globallyRestrictedProperties = new Map();
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| 
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|         restrictedCalls.forEach(option => {
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|             const objectName = option.object;
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|             const propertyName = option.property;
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| 
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|             if (typeof objectName === "undefined") {
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|                 globallyRestrictedProperties.set(propertyName, { message: option.message });
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|             } else if (typeof propertyName === "undefined") {
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|                 globallyRestrictedObjects.set(objectName, { message: option.message });
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|             } else {
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|                 if (!restrictedProperties.has(objectName)) {
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|                     restrictedProperties.set(objectName, new Map());
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|                 }
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| 
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|                 restrictedProperties.get(objectName).set(propertyName, {
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|                     message: option.message
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|                 });
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|             }
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|         });
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| 
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|         /**
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|          * Checks to see whether a property access is restricted, and reports it if so.
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|          * @param {ASTNode} node The node to report
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|          * @param {string} objectName The name of the object
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|          * @param {string} propertyName The name of the property
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|          * @returns {undefined}
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|          */
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|         function checkPropertyAccess(node, objectName, propertyName) {
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|             if (propertyName === null) {
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|                 return;
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|             }
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|             const matchedObject = restrictedProperties.get(objectName);
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|             const matchedObjectProperty = matchedObject ? matchedObject.get(propertyName) : globallyRestrictedObjects.get(objectName);
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|             const globalMatchedProperty = globallyRestrictedProperties.get(propertyName);
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| 
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|             if (matchedObjectProperty) {
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|                 const message = matchedObjectProperty.message ? ` ${matchedObjectProperty.message}` : "";
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| 
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|                 context.report({
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|                     node,
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|                     messageId: "restrictedObjectProperty",
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|                     data: {
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|                         objectName,
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|                         propertyName,
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|                         message
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|                     }
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|                 });
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|             } else if (globalMatchedProperty) {
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|                 const message = globalMatchedProperty.message ? ` ${globalMatchedProperty.message}` : "";
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| 
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|                 context.report({
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|                     node,
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|                     messageId: "restrictedProperty",
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|                     data: {
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|                         propertyName,
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|                         message
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|                     }
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|                 });
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|             }
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|         }
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| 
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|         return {
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|             MemberExpression(node) {
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|                 checkPropertyAccess(node, node.object && node.object.name, astUtils.getStaticPropertyName(node));
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|             },
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|             ObjectPattern(node) {
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|                 let objectName = null;
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| 
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|                 if (node.parent.type === "VariableDeclarator") {
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|                     if (node.parent.init && node.parent.init.type === "Identifier") {
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|                         objectName = node.parent.init.name;
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|                     }
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|                 } else if (node.parent.type === "AssignmentExpression" || node.parent.type === "AssignmentPattern") {
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|                     if (node.parent.right.type === "Identifier") {
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|                         objectName = node.parent.right.name;
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|                     }
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|                 }
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| 
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|                 node.properties.forEach(property => {
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|                     checkPropertyAccess(node, objectName, astUtils.getStaticPropertyName(property));
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|                 });
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|             }
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|         };
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|     }
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| };
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