eslint · snitin315 · Jul 17, 2025 · Jun 24, 2025 · Jun 25, 2025 · Jul 9, 2025
@@ -51,6 +51,7 @@ This rule always checks object literals and property descriptors. By default, it
 * `setWithoutGet` set to `true` will warn for setters without getters (Default `true`).
 * `getWithoutSet` set to `true` will warn for getters without setters (Default `false`).
 * `enforceForClassMembers` set to `true` additionally applies this rule to class getters/setters (Default `true`). Set `enforceForClassMembers` to `false` if you want this rule to ignore class declarations and class expressions.
+* `enforceForTSTypes`: set to `true` additionally applies this rule to TypeScript type definitions (Default `false`).
 
 ### setWithoutGet
 
@@ -273,6 +274,71 @@ const Quux = class {
 
 :::
 
+### enforceForTSTypes
+
+When `enforceForTSTypes` is set to `true`:
+
+* `"getWithoutSet": true` will also warn for getters without setters in TypeScript types.
+* `"setWithoutGet": true` will also warn for setters without getters in TypeScript types.
+
+Examples of **incorrect** code for `{ "getWithoutSet": true, "enforceForTSTypes": true }`:
+
+:::incorrect
+
+```ts
+/*eslint accessor-pairs: ["error", { "getWithoutSet": true, "enforceForTSTypes": true }]*/
+
+interface I {
+    get a(): string
+}
+
+type T = {
+    get a(): number
+}
+```
+
+:::
+
+Examples of **incorrect** code for `{ "setWithoutGet": true, "enforceForTSTypes": true }`:
+
+:::incorrect
+
+```ts
+/*eslint accessor-pairs: ["error", { "setWithoutGet": true, "enforceForTSTypes": true }]*/
+
+interface I {
+    set a(value: unknown): void
+}
+
+type T = {
+    set a(value: unknown): void
+}
+```
+
+:::
+
+When `enforceForTSTypes` is set to `false`, this rule ignores TypeScript types.
+
+Examples of **correct** code for `{ "getWithoutSet": true, "setWithoutGet": true, "enforceForTSTypes": false }`:
+
+:::correct
+
+```ts
+/*eslint accessor-pairs: ["error", {
+    "getWithoutSet": true, "setWithoutGet": true, "enforceForTSTypes": false
+}]*/
+
+interface I {
+    get a(): string
+}
+
+type T = {
+    set a(value: unknown): void
+}
+```
+
+:::
+
 ## Known Limitations
 
 Due to the limits of static analysis, this rule does not account for possible side effects and in certain cases

@@ -152,12 +152,15 @@ const Bar = class {
 
 ## Options
 
-This rule has a string option:
-
+This rule has a primary string and an optional secondary object option.
+The string option specifies the order:
 * `"anyOrder"` (default) does not enforce order.
 * `"getBeforeSet"` if a property has both getter and setter, requires the getter to be defined before the setter.
 * `"setBeforeGet"` if a property has both getter and setter, requires the setter to be defined before the getter.
 
+The optional object option allows opting-in to check additional object-likes:
+* `enforceForTSTypes`: also check TypeScript types (interfaces and type literals)
+
 ### getBeforeSet
 
 Examples of **incorrect** code for this rule with the `"getBeforeSet"` option:
@@ -308,6 +311,49 @@ const Bar = class {
 }
 ```
 
+:::
+### enforceForTSTypes
+
+Examples of **incorrect** code for this rule with `["anyOrder", { enforceForTSTypes: true }]`:
+
+::: incorrect
+
+```ts
+/*eslint grouped-accessor-pairs: ["error", "anyOrder", { enforceForTSTypes: true }] */
+
+interface I {
+    get a(): string,
+    between: true,
+    set a(value: string): void
+}
+
+type T = {
+    get a(): string,
+    between: true,
+    set a(value: string): void
+};
+```
+
+:::
+
+Examples of **correct** code for this rule with with `["anyOrder", { enforceForTSTypes: true }]`:
+
+::: correct
+
+```ts
+/*eslint grouped-accessor-pairs: ["error", "anyOrder", { enforceForTSTypes: true }] */
+
+interface I {
+    get a(): string,
+    set a(value: string): void,
+}
+
+type T = {
+    set a(value: string): void,
+    get a(): string,
+};
+```
+
 :::
 
 ## Known Limitations

@@ -148,6 +148,7 @@ module.exports = {
 
 		defaultOptions: [
 			{
+				enforceForTSTypes: false,
 				enforceForClassMembers: true,
 				getWithoutSet: false,
 				setWithoutGet: true,
@@ -174,6 +175,9 @@ module.exports = {
 					enforceForClassMembers: {
 						type: "boolean",
 					},
+					enforceForTSTypes: {
+						type: "boolean",
+					},
 				},
 				additionalProperties: false,
 			},
@@ -190,6 +194,8 @@ module.exports = {
 				"Setter is not present for {{ name }}.",
 			missingGetterInClass: "Getter is not present for class {{ name }}.",
 			missingSetterInClass: "Setter is not present for class {{ name }}.",
+			missingGetterInType: "Getter is not present for type {{ name }}.",
+			missingSetterInType: "Setter is not present for type {{ name }}.",
 		},
 	},
 	create(context) {
@@ -198,6 +204,7 @@ module.exports = {
 				getWithoutSet: checkGetWithoutSet,
 				setWithoutGet: checkSetWithoutGet,
 				enforceForClassMembers,
+				enforceForTSTypes,
 			},
 		] = context.options;
 		const sourceCode = context.sourceCode;
@@ -228,6 +235,15 @@ module.exports = {
 						name: astUtils.getFunctionNameWithKind(node.value),
 					},
 				});
+			} else if (node.type === "TSMethodSignature") {
+				context.report({
+					node,
+					messageId: `${messageKind}InType`,
+					loc: astUtils.getFunctionHeadLoc(node, sourceCode),
+					data: {
+						name: astUtils.getFunctionNameWithKind(node),
+					},
+				});
 			} else {
 				context.report({
 					node,
@@ -371,13 +387,32 @@ module.exports = {
 			checkList(methodDefinitions.filter(m => !m.static));
 		}
 
+		/**
+		 * Checks the given type.
+		 * @param {ASTNode} node `TSTypeLiteral` or `TSInterfaceBody` node to check.
+		 * @returns {void}
+		 * @private
+		 */
+		function checkType(node) {
+			const members =
+				node.type === "TSTypeLiteral" ? node.members : node.body;
+			const methodDefinitions = members.filter(
+				m => m.type === "TSMethodSignature",
+			);
+
+			checkList(methodDefinitions);
+		}
+
 		const listeners = {};
 
 		if (checkSetWithoutGet || checkGetWithoutSet) {
 			listeners.ObjectExpression = checkObjectExpression;
 			if (enforceForClassMembers) {
 				listeners.ClassBody = checkClassBody;
 			}
+			if (enforceForTSTypes) {
+				listeners["TSTypeLiteral, TSInterfaceBody"] = checkType;
+			}
 		}
 
 		return listeners;

@@ -87,6 +87,8 @@ function isAccessorKind(node) {
 	return node.kind === "get" || node.kind === "set";
 }
 
+const DEFAULT_ORDER = "anyOrder";
+
 //------------------------------------------------------------------------------
 // Rule Definition
 //------------------------------------------------------------------------------
@@ -96,7 +98,7 @@ module.exports = {
 	meta: {
 		type: "suggestion",
 
-		defaultOptions: ["anyOrder"],
+		defaultOptions: [DEFAULT_ORDER],
 
 		docs: {
 			description:
@@ -106,8 +108,15 @@ module.exports = {
 		},
 
 		schema: [
+			{ enum: ["anyOrder", "getBeforeSet", "setBeforeGet"] },
 			{
-				enum: ["anyOrder", "getBeforeSet", "setBeforeGet"],
+				type: "object",
+				properties: {
+					enforceForTSTypes: {
+						type: "boolean",
+					},
+				},
+				additionalProperties: false,
 			},
 		],
 
@@ -120,7 +129,9 @@ module.exports = {
 	},
 
 	create(context) {
-		const [order] = context.options;
+		const order = context.options[0] ?? DEFAULT_ORDER;
+		const enforceForTSTypes =
+			context.options[1]?.enforceForTSTypes ?? false;
 		const sourceCode = context.sourceCode;
 
 		/**
@@ -135,13 +146,22 @@ module.exports = {
 			context.report({
 				node: latterNode,
 				messageId,
-				loc: astUtils.getFunctionHeadLoc(latterNode.value, sourceCode),
+				loc: astUtils.getFunctionHeadLoc(
+					latterNode.type !== "TSMethodSignature"
+						? latterNode.value
+						: latterNode,
+					sourceCode,
+				),
 				data: {
 					formerName: astUtils.getFunctionNameWithKind(
-						formerNode.value,
+						formerNode.type !== "TSMethodSignature"
+							? formerNode.value
+							: formerNode,
 					),
 					latterName: astUtils.getFunctionNameWithKind(
-						latterNode.value,
+						latterNode.type !== "TSMethodSignature"
+							? latterNode.value
+							: latterNode,
 					),
 				},
 			});
@@ -232,6 +252,16 @@ module.exports = {
 					n => n.type === "MethodDefinition" && n.static,
 				);
 			},
+			"TSTypeLiteral, TSInterfaceBody"(node) {
+				if (enforceForTSTypes) {
+					checkList(
+						node.type === "TSTypeLiteral"
+							? node.members
+							: node.body,
+						n => n.type === "TSMethodSignature",
+					);
+				}
+			},
 		};
 	},
 };
@@ -298,6 +298,8 @@ function getStaticPropertyName(node) {
 		case "Property":
 		case "PropertyDefinition":
 		case "MethodDefinition":
+		case "TSPropertySignature":
+		case "TSMethodSignature":
 			prop = node.key;
 			break;
 
@@ -1944,13 +1946,15 @@ module.exports = {
 
 		if (
 			parent.type === "MethodDefinition" ||
-			parent.type === "PropertyDefinition"
+			parent.type === "PropertyDefinition" ||
+			node.type === "TSPropertySignature" ||
+			node.type === "TSMethodSignature"
 		) {
 			// The proposal uses `static` word consistently before visibility words: https://github.com/tc39/proposal-static-class-features
 			if (parent.static) {
 				tokens.push("static");
 			}
-			if (!parent.computed && parent.key.type === "PrivateIdentifier") {
+			if (!parent.computed && parent.key?.type === "PrivateIdentifier") {
 				tokens.push("private");
 			}
 		}
@@ -1972,6 +1976,14 @@ module.exports = {
 			} else {
 				tokens.push("method");
 			}
+		} else if (node.type === "TSMethodSignature") {
+			if (node.kind === "get") {
+				tokens.push("getter");
+			} else if (node.kind === "set") {
+				tokens.push("setter");
+			} else {
+				tokens.push("method");
+			}
 		} else if (parent.type === "PropertyDefinition") {
 			tokens.push("method");
 		} else {
@@ -1997,6 +2009,8 @@ module.exports = {
 					tokens.push(`'${node.id.name}'`);
 				}
 			}
+		} else if (node.type === "TSMethodSignature") {
+			tokens.push(`'${getStaticPropertyName(node)}'`);
 		} else if (node.id) {
 			tokens.push(`'${node.id.name}'`);
 		}
@@ -2109,7 +2123,9 @@ module.exports = {
 		if (
 			parent.type === "Property" ||
 			parent.type === "MethodDefinition" ||
-			parent.type === "PropertyDefinition"
+			parent.type === "PropertyDefinition" ||
+			parent.type === "TSPropertySignature" ||
+			parent.type === "TSMethodSignature"
 		) {
 			start = parent.loc.start;
 			end = getOpeningParenOfParams(node, sourceCode).loc.start;