Fix declaration-block-no-redundant-longhand-properties autofix for grid-column and grid-row

.changeset/wet-houses-warn.md

@@ -0,0 +1,5 @@
+---
+"stylelint": patch
+---
+
+Fixed: `declaration-block-no-redundant-longhand-properties` autofix for `grid-column` and `grid-row`

lib/rules/declaration-block-no-redundant-longhand-properties/__tests__/index.js

@@ -206,6 +206,18 @@ testRule({
 			description: 'autofixer should not mangle css functions with comma separated values',
 			message: messages.expected('transition'),
 		},
+		{
+			code: 'a { grid-column-start: 1; grid-column-end: 2; }',
+			fixed: 'a { grid-column: 1 / 2; }',
+			description: 'explicit grid-column test',
+			message: messages.expected('grid-column'),
+		},
+		{
+			code: 'a { grid-row-start: 1; grid-row-end: 2; }',
+			fixed: 'a { grid-row: 1 / 2; }',
+			description: 'explicit grid-row test',
+			message: messages.expected('grid-row'),
+		},
 		{
 			code: 'a { border-top-left-radius: 1em; border-top-right-radius: 2em; border-bottom-right-radius: 3em; border-bottom-left-radius: 4em; }',
 			fixed: 'a { border-radius: 1em 2em 3em 4em; }',

lib/rules/declaration-block-no-redundant-longhand-properties/index.js

@@ -28,6 +28,28 @@ const meta = {
 
 /** @type {Map<string, (decls: Map<string, Declaration>) => (string | undefined)>} */
 const customResolvers = new Map([
+	[
+		'grid-column',
+		(decls) => {
+			const start = decls.get('grid-column-start')?.value.trim();
+			const end = decls.get('grid-column-end')?.value.trim();
+
+			if (!start || !end) return;
+
+			return `${start} / ${end}`;
+		},
+	],
+	[
+		'grid-row',
+		(decls) => {
+			const start = decls.get('grid-row-start')?.value.trim();
+			const end = decls.get('grid-row-end')?.value.trim();
+
+			if (!start || !end) return;
+
+			return `${start} / ${end}`;
+		},
+	],
 	[
 		'grid-template',
 		(decls) => {