fix: fix property location reporting (#495)

closes #494

Author: bartveneman

package-lock.json

@@ -49,7 +49,7 @@
 		"code"
 	],
 	"dependencies": {
-		"@projectwallace/css-parser": "^0.12.2"
+		"@projectwallace/css-parser": "^0.12.3"
 	},
 	"devDependencies": {
 		"@codecov/vite-plugin": "^1.9.1",

package.json

@@ -471,6 +471,7 @@ function analyzeInternal<T extends boolean>(css: string, options: Options, useLo
 			let { is_important, property, is_browserhack, is_vendor_prefixed } = node
 
 			let propertyLoc = toLoc(node)
+			propertyLoc.length = property.length
 
 			properties.p(property, propertyLoc)
 

src/index.ts

@@ -209,3 +209,16 @@ test('counts the amount of !important used on custom properties', () => {
 		'--color3': 1,
 	})
 })
+
+test('reports locations correctly', () => {
+	const fixture = `
+    properties {
+      margin: 0;
+    }
+  `
+	const actual = analyze(fixture, { useLocations: true }).properties.uniqueWithLocations
+
+	expect(actual).toEqual({
+		margin: [{ offset: 24, length: 6, column: 7, line: 3 }],
+	})
+})