fix: expand on platform level to adjust path prop

.changeset/mighty-rings-share.md

@@ -0,0 +1,5 @@
+---
+'style-dictionary': patch
+---
+
+Fix for expand utility on platform level to adjust the token's path property.

__tests__/utils/expandObjectTokens.test.js

@@ -100,6 +100,38 @@ describe('utils', () => {
           expect(expanded).to.eql(borderOutput);
         });
 
+        it('should adjust the path properties of the newly expanded tokens if path prop is already present (platform expand)', () => {
+          const expanded = expandToken(
+            {
+              type: 'border',
+              value: {
+                width: '2px',
+                style: 'solid',
+                color: '#000',
+              },
+              path: ['input', 'border'],
+            },
+            { expand: true, usesDtcg: false },
+          );
+          expect(expanded).to.eql({
+            color: {
+              type: 'color',
+              value: '#000',
+              path: ['input', 'border', 'color'],
+            },
+            style: {
+              type: 'strokeStyle',
+              value: 'solid',
+              path: ['input', 'border', 'style'],
+            },
+            width: {
+              type: 'dimension',
+              value: '2px',
+              path: ['input', 'border', 'width'],
+            },
+          });
+        });
+
         it('should handle DTCG spec tokens expansion', () => {
           const expanded = expandToken(
             {

lib/utils/expandObjectTokens.js

@@ -178,6 +178,11 @@ export function expandToken(token, opts, platform) {
         [`${uses$ ? '$' : ''}value`]: value,
         [`${uses$ ? '$' : ''}type`]: getTypeFromMap(key, compositionType, typesMap),
       };
+      if (Array.isArray(expandedTokenObjRef[key].path)) {
+        // if we're expanding on platform level, we already have a path property
+        // we will need to adjust this by adding the new keys of th expanded tokens to the path array
+        expandedTokenObjRef[key].path = [...expandedTokenObjRef[key].path, key];
+      }
     });
   });