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Rosanny Sihombing authoredThis reverts merge request !169
5b5df7d0
/** * @fileoverview Rule to disallow certain object properties * @author Will Klein & Eli White */"use strict";const astUtils = require("./utils/ast-utils");//------------------------------------------------------------------------------// Rule Definition//------------------------------------------------------------------------------module.exports = { meta: { type: "suggestion", docs: { description: "disallow certain properties on certain objects", category: "Best Practices", recommended: false, url: "https://eslint.org/docs/rules/no-restricted-properties" }, schema: { type: "array", items: { anyOf: [ // `object` and `property` are both optional, but at least one of them must be provided. { type: "object", properties: { object: { type: "string" }, property: { type: "string" }, message: { type: "string" } }, additionalProperties: false, required: ["object"] }, { type: "object", properties: { object: { type: "string" }, property: { type: "string" }, message: { type: "string" } }, additionalProperties: false, required: ["property"] } ] }, uniqueItems: true }, messages: { // eslint-disable-next-line eslint-plugin/report-message-format restrictedObjectProperty: "'{{objectName}}.{{propertyName}}' is restricted from being used.{{message}}", // eslint-disable-next-line eslint-plugin/report-message-format restrictedProperty: "'{{propertyName}}' is restricted from being used.{{message}}"
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}
},
create(context) {
const restrictedCalls = context.options;
if (restrictedCalls.length === 0) {
return {};
}
const restrictedProperties = new Map();
const globallyRestrictedObjects = new Map();
const globallyRestrictedProperties = new Map();
restrictedCalls.forEach(option => {
const objectName = option.object;
const propertyName = option.property;
if (typeof objectName === "undefined") {
globallyRestrictedProperties.set(propertyName, { message: option.message });
} else if (typeof propertyName === "undefined") {
globallyRestrictedObjects.set(objectName, { message: option.message });
} else {
if (!restrictedProperties.has(objectName)) {
restrictedProperties.set(objectName, new Map());
}
restrictedProperties.get(objectName).set(propertyName, {
message: option.message
});
}
});
/**
* Checks to see whether a property access is restricted, and reports it if so.
* @param {ASTNode} node The node to report
* @param {string} objectName The name of the object
* @param {string} propertyName The name of the property
* @returns {undefined}
*/
function checkPropertyAccess(node, objectName, propertyName) {
if (propertyName === null) {
return;
}
const matchedObject = restrictedProperties.get(objectName);
const matchedObjectProperty = matchedObject ? matchedObject.get(propertyName) : globallyRestrictedObjects.get(objectName);
const globalMatchedProperty = globallyRestrictedProperties.get(propertyName);
if (matchedObjectProperty) {
const message = matchedObjectProperty.message ? ` ${matchedObjectProperty.message}` : "";
context.report({
node,
messageId: "restrictedObjectProperty",
data: {
objectName,
propertyName,
message
}
});
} else if (globalMatchedProperty) {
const message = globalMatchedProperty.message ? ` ${globalMatchedProperty.message}` : "";
context.report({
node,
messageId: "restrictedProperty",
data: {
propertyName,
message
}
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});
}
}
/**
* Checks property accesses in a destructuring assignment expression, e.g. `var foo; ({foo} = bar);`
* @param {ASTNode} node An AssignmentExpression or AssignmentPattern node
* @returns {undefined}
*/
function checkDestructuringAssignment(node) {
if (node.right.type === "Identifier") {
const objectName = node.right.name;
if (node.left.type === "ObjectPattern") {
node.left.properties.forEach(property => {
checkPropertyAccess(node.left, objectName, astUtils.getStaticPropertyName(property));
});
}
}
}
return {
MemberExpression(node) {
checkPropertyAccess(node, node.object && node.object.name, astUtils.getStaticPropertyName(node));
},
VariableDeclarator(node) {
if (node.init && node.init.type === "Identifier") {
const objectName = node.init.name;
if (node.id.type === "ObjectPattern") {
node.id.properties.forEach(property => {
checkPropertyAccess(node.id, objectName, astUtils.getStaticPropertyName(property));
});
}
}
},
AssignmentExpression: checkDestructuringAssignment,
AssignmentPattern: checkDestructuringAssignment
};
}
};