Add components

slider/node_modules/eslint/lib/rules/space-before-function-paren.js

@@ -0,0 +1,205 @@
+/**
+ * @fileoverview Rule to validate spacing before function paren.
+ * @author Mathias Schreck <https://github.com/lo1tuma>
+ * @deprecated in ESLint v8.53.0
+ */
+"use strict";
+
+//------------------------------------------------------------------------------
+// Requirements
+//------------------------------------------------------------------------------
+
+const astUtils = require("./utils/ast-utils");
+
+//------------------------------------------------------------------------------
+// Rule Definition
+//------------------------------------------------------------------------------
+
+/** @type {import('../types').Rule.RuleModule} */
+module.exports = {
+	meta: {
+		deprecated: {
+			message: "Formatting rules are being moved out of ESLint core.",
+			url: "https://eslint.org/blog/2023/10/deprecating-formatting-rules/",
+			deprecatedSince: "8.53.0",
+			availableUntil: "10.0.0",
+			replacedBy: [
+				{
+					message:
+						"ESLint Stylistic now maintains deprecated stylistic core rules.",
+					url: "https://eslint.style/guide/migration",
+					plugin: {
+						name: "@stylistic/eslint-plugin",
+						url: "https://eslint.style",
+					},
+					rule: {
+						name: "space-before-function-paren",
+						url: "https://eslint.style/rules/space-before-function-paren",
+					},
+				},
+			],
+		},
+		type: "layout",
+
+		docs: {
+			description:
+				"Enforce consistent spacing before `function` definition opening parenthesis",
+			recommended: false,
+			url: "https://eslint.org/docs/latest/rules/space-before-function-paren",
+		},
+
+		fixable: "whitespace",
+
+		schema: [
+			{
+				oneOf: [
+					{
+						enum: ["always", "never"],
+					},
+					{
+						type: "object",
+						properties: {
+							anonymous: {
+								enum: ["always", "never", "ignore"],
+							},
+							named: {
+								enum: ["always", "never", "ignore"],
+							},
+							asyncArrow: {
+								enum: ["always", "never", "ignore"],
+							},
+						},
+						additionalProperties: false,
+					},
+				],
+			},
+		],
+
+		messages: {
+			unexpectedSpace: "Unexpected space before function parentheses.",
+			missingSpace: "Missing space before function parentheses.",
+		},
+	},
+
+	create(context) {
+		const sourceCode = context.sourceCode;
+		const baseConfig =
+			typeof context.options[0] === "string"
+				? context.options[0]
+				: "always";
+		const overrideConfig =
+			typeof context.options[0] === "object" ? context.options[0] : {};
+
+		/**
+		 * Determines whether a function has a name.
+		 * @param {ASTNode} node The function node.
+		 * @returns {boolean} Whether the function has a name.
+		 */
+		function isNamedFunction(node) {
+			if (node.id) {
+				return true;
+			}
+
+			const parent = node.parent;
+
+			return (
+				parent.type === "MethodDefinition" ||
+				(parent.type === "Property" &&
+					(parent.kind === "get" ||
+						parent.kind === "set" ||
+						parent.method))
+			);
+		}
+
+		/**
+		 * Gets the config for a given function
+		 * @param {ASTNode} node The function node
+		 * @returns {string} "always", "never", or "ignore"
+		 */
+		function getConfigForFunction(node) {
+			if (node.type === "ArrowFunctionExpression") {
+				// Always ignore non-async functions and arrow functions without parens, e.g. async foo => bar
+				if (
+					node.async &&
+					astUtils.isOpeningParenToken(
+						sourceCode.getFirstToken(node, { skip: 1 }),
+					)
+				) {
+					return overrideConfig.asyncArrow || baseConfig;
+				}
+			} else if (isNamedFunction(node)) {
+				return overrideConfig.named || baseConfig;
+
+				// `generator-star-spacing` should warn anonymous generators. E.g. `function* () {}`
+			} else if (!node.generator) {
+				return overrideConfig.anonymous || baseConfig;
+			}
+
+			return "ignore";
+		}
+
+		/**
+		 * Checks the parens of a function node
+		 * @param {ASTNode} node A function node
+		 * @returns {void}
+		 */
+		function checkFunction(node) {
+			const functionConfig = getConfigForFunction(node);
+
+			if (functionConfig === "ignore") {
+				return;
+			}
+
+			const rightToken = sourceCode.getFirstToken(
+				node,
+				astUtils.isOpeningParenToken,
+			);
+			const leftToken = sourceCode.getTokenBefore(rightToken);
+			const hasSpacing = sourceCode.isSpaceBetweenTokens(
+				leftToken,
+				rightToken,
+			);
+
+			if (hasSpacing && functionConfig === "never") {
+				context.report({
+					node,
+					loc: {
+						start: leftToken.loc.end,
+						end: rightToken.loc.start,
+					},
+					messageId: "unexpectedSpace",
+					fix(fixer) {
+						const comments =
+							sourceCode.getCommentsBefore(rightToken);
+
+						// Don't fix anything if there's a single line comment between the left and the right token
+						if (comments.some(comment => comment.type === "Line")) {
+							return null;
+						}
+						return fixer.replaceTextRange(
+							[leftToken.range[1], rightToken.range[0]],
+							comments.reduce(
+								(text, comment) =>
+									text + sourceCode.getText(comment),
+								"",
+							),
+						);
+					},
+				});
+			} else if (!hasSpacing && functionConfig === "always") {
+				context.report({
+					node,
+					loc: rightToken.loc,
+					messageId: "missingSpace",
+					fix: fixer => fixer.insertTextAfter(leftToken, " "),
+				});
+			}
+		}
+
+		return {
+			ArrowFunctionExpression: checkFunction,
+			FunctionDeclaration: checkFunction,
+			FunctionExpression: checkFunction,
+		};
+	},
+};