Supporting arrays

Author: yazgazan

diff/diff.go

@@ -64,7 +64,7 @@ func diff(c config, lhs, rhs interface{}, visited *visited) (Differ, error) {
 	}
 
 	switch lhsVal.Kind() {
-	case reflect.Slice:
+	case reflect.Slice, reflect.Array:
 		return c.sliceFn(c, lhs, rhs, visited)
 	case reflect.Map:
 		return newMap(c, lhs, rhs, visited)
@@ -79,6 +79,9 @@ func areScalars(lhs, rhs reflect.Value) bool {
 	if lhs.Kind() == reflect.Struct || rhs.Kind() == reflect.Struct {
 		return false
 	}
+	if lhs.Kind() == reflect.Array || rhs.Kind() == reflect.Array {
+		return false
+	}
 
 	return lhs.Type().Comparable() && rhs.Type().Comparable()
 }

diff/example_test.go

@@ -48,13 +48,15 @@ func ExampleDiff_struct() {
 		Foo int
 		Bar string
 		Baz subStruct
+		Ban [2]int
 
 		priv int
 	}
 	type structB struct {
 		Foo int
 		Bar string
 		Baz subStruct
+		Ban [2]int
 
 		priv int
 	}
@@ -66,6 +68,7 @@ func ExampleDiff_struct() {
 			Hello: 11,
 			World: 3.5,
 		},
+		Ban:  [2]int{3, 5},
 		priv: 0,
 	}
 	rhs := structB{
@@ -75,6 +78,7 @@ func ExampleDiff_struct() {
 			Hello: 11,
 			World: 3.5,
 		},
+		Ban:  [2]int{3, 7},
 		priv: 1,
 	}
 
@@ -91,6 +95,11 @@ func ExampleDiff_struct() {
 
 	// Output:
 	// diff_test.structA map[
+	//    Ban: [2]int [
+	//      int 3
+	// -    int 5
+	// +    int 7
+	//    ]
 	//    Bar: string hello
 	//    Baz: diff_test.subStruct {11 3.5}
 	// -  Foo: int 42