Add components

slider/node_modules/eslint/lib/rules/max-params.js

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+/**
+ * @fileoverview Rule to flag when a function has too many parameters
+ * @author Ilya Volodin
+ */
+
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const astUtils = require("./utils/ast-utils");
+const { upperCaseFirst } = require("../shared/string-utils");
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../types').Rule.RuleModule} */
+module.exports = {
+	meta: {
+		type: "suggestion",
+		dialects: ["typescript", "javascript"],
+		language: "javascript",
+
+		docs: {
+			description:
+				"Enforce a maximum number of parameters in function definitions",
+			recommended: false,
+			url: "https://eslint.org/docs/latest/rules/max-params",
+		},
+
+		schema: [
+			{
+				oneOf: [
+					{
+						type: "integer",
+						minimum: 0,
+					},
+					{
+						type: "object",
+						properties: {
+							maximum: {
+								type: "integer",
+								minimum: 0,
+							},
+							max: {
+								type: "integer",
+								minimum: 0,
+							},
+							countVoidThis: {
+								type: "boolean",
+								description:
+									"Whether to count a `this` declaration when the type is `void`.",
+							},
+						},
+						additionalProperties: false,
+					},
+				],
+			},
+		],
+		messages: {
+			exceed: "{{name}} has too many parameters ({{count}}). Maximum allowed is {{max}}.",
+		},
+	},
+
+	create(context) {
+		const sourceCode = context.sourceCode;
+		const option = context.options[0];
+		let numParams = 3;
+		let countVoidThis = false;
+
+		if (typeof option === "object") {
+			if (
+				Object.hasOwn(option, "maximum") ||
+				Object.hasOwn(option, "max")
+			) {
+				numParams = option.maximum || option.max;
+			}
+			countVoidThis = option.countVoidThis;
+		}
+		if (typeof option === "number") {
+			numParams = option;
+		}
+
+		/**
+		 * Checks a function to see if it has too many parameters.
+		 * @param {ASTNode} node The node to check.
+		 * @returns {void}
+		 * @private
+		 */
+		function checkFunction(node) {
+			const hasVoidThisParam =
+				node.params.length > 0 &&
+				node.params[0].type === "Identifier" &&
+				node.params[0].name === "this" &&
+				node.params[0].typeAnnotation?.typeAnnotation.type ===
+					"TSVoidKeyword";
+
+			const effectiveParamCount =
+				hasVoidThisParam && !countVoidThis
+					? node.params.length - 1
+					: node.params.length;
+
+			if (effectiveParamCount > numParams) {
+				context.report({
+					loc: astUtils.getFunctionHeadLoc(node, sourceCode),
+					node,
+					messageId: "exceed",
+					data: {
+						name: upperCaseFirst(
+							astUtils.getFunctionNameWithKind(node),
+						),
+						count: effectiveParamCount,
+						max: numParams,
+					},
+				});
+			}
+		}
+
+		return {
+			FunctionDeclaration: checkFunction,
+			ArrowFunctionExpression: checkFunction,
+			FunctionExpression: checkFunction,
+			TSDeclareFunction: checkFunction,
+			TSFunctionType: checkFunction,
+		};
+	},
+};