fix: make sure every prop is rendered even if no type (#120)

vue-styleguidist/vue-styleguidist#222

Author: elevatebart

src/script-handlers/__tests__/propHandler.ts

@@ -198,6 +198,21 @@ describe('propHandler', () => {
         },
       })
     })
+
+    it('should still return props with delegated types', () => {
+      const src = [
+        'export default {',
+        '  props: {',
+        "    toto",
+        '  }',
+        '}',
+      ].join('\n')
+      tester(src, {
+        type: {
+          name: "undefined",
+        },
+      })
+    })
   })
 
   describe('required', () => {

src/script-handlers/propHandler.ts

@@ -108,13 +108,15 @@ export function describeType(
   }
 }
 
+const VALID_VUE_TYPES = ["string", "number", "boolean", "array", "object", "date", "function", "symbol"]
+
 function getTypeFromTypePath(typePath: NodePath): { name: string; func?: boolean } {
   const typeNode = typePath.node
   const typeName = bt.isArrayExpression(typeNode)
-    ? typeNode.elements
-        .map(t => (t && bt.isIdentifier(t) ? t.name.toLowerCase() : 'undefined'))
+    ? typePath.get("elements")
+        .map((t: NodePath) => getTypeFromTypePath(t).name)
         .join('|')
-    : typeNode && bt.isIdentifier(typeNode)
+    : typeNode && bt.isIdentifier(typeNode) && VALID_VUE_TYPES.indexOf(typeNode.name.toLowerCase()) > -1
     ? typeNode.name.toLowerCase()
     : 'undefined'
   return {