do not check inherited properties if interface has one item in heritage list

vladima · vladima · commit 2b8f04af0caf · 2014-07-16T22:53:53.000-07:00
diff --git a/src/compiler/checker.ts b/src/compiler/checker.ts
@@ -2345,7 +2345,7 @@ module ts {
         }
 
         function checkInheritedPropertiesAreIdentical(type: InterfaceType, typeNode: Node): boolean {
-            if (!type.baseTypes.length) {
+            if (!type.baseTypes.length || type.baseTypes.length === 1) {
                 return true;
             }
 

Original file line number	Diff line number	Diff line change
`@@ -2345,7 +2345,7 @@ module ts {`
`2345`	`2345`	`}`
`2346`	`2346`
`2347`	`2347`	`function checkInheritedPropertiesAreIdentical(type: InterfaceType, typeNode: Node): boolean {`
`2348`		`- if (!type.baseTypes.length) {`
	`2348`	`+ if (!type.baseTypes.length \|\| type.baseTypes.length === 1) {`
`2349`	`2349`	`return true;`
`2350`	`2350`	`}`
`2351`	`2351`