internal/lib/reflect: Value.SetZero

internal/lib/reflect/value.go

@@ -908,58 +908,55 @@ func (v Value) IsZero() bool {
 // SetZero sets v to be the zero value of v's type.
 // It panics if CanSet returns false.
 func (v Value) SetZero() {
-	/*
-		v.mustBeAssignable()
-		switch v.kind() {
-		case Bool:
-			*(*bool)(v.ptr) = false
-		case Int:
-			*(*int)(v.ptr) = 0
-		case Int8:
-			*(*int8)(v.ptr) = 0
-		case Int16:
-			*(*int16)(v.ptr) = 0
-		case Int32:
-			*(*int32)(v.ptr) = 0
-		case Int64:
-			*(*int64)(v.ptr) = 0
-		case Uint:
-			*(*uint)(v.ptr) = 0
-		case Uint8:
-			*(*uint8)(v.ptr) = 0
-		case Uint16:
-			*(*uint16)(v.ptr) = 0
-		case Uint32:
-			*(*uint32)(v.ptr) = 0
-		case Uint64:
-			*(*uint64)(v.ptr) = 0
-		case Uintptr:
-			*(*uintptr)(v.ptr) = 0
-		case Float32:
-			*(*float32)(v.ptr) = 0
-		case Float64:
-			*(*float64)(v.ptr) = 0
-		case Complex64:
-			*(*complex64)(v.ptr) = 0
-		case Complex128:
-			*(*complex128)(v.ptr) = 0
-		case String:
-			*(*string)(v.ptr) = ""
-		case Slice:
-			*(*unsafeheader.Slice)(v.ptr) = unsafeheader.Slice{}
-		case Interface:
-			*(*[2]unsafe.Pointer)(v.ptr) = [2]unsafe.Pointer{}
-		case Chan, Func, Map, Pointer, UnsafePointer:
-			*(*unsafe.Pointer)(v.ptr) = nil
-		case Array, Struct:
-			typedmemclr(v.typ(), v.ptr)
-		default:
-			// This should never happen, but will act as a safeguard for later,
-			// as a default value doesn't makes sense here.
-			panic(&ValueError{"reflect.Value.SetZero", v.Kind()})
-		}
-	*/
-	panic("todo: reflect.Value.SetZero")
+	v.mustBeAssignable()
+	switch v.kind() {
+	case Bool:
+		*(*bool)(v.ptr) = false
+	case Int:
+		*(*int)(v.ptr) = 0
+	case Int8:
+		*(*int8)(v.ptr) = 0
+	case Int16:
+		*(*int16)(v.ptr) = 0
+	case Int32:
+		*(*int32)(v.ptr) = 0
+	case Int64:
+		*(*int64)(v.ptr) = 0
+	case Uint:
+		*(*uint)(v.ptr) = 0
+	case Uint8:
+		*(*uint8)(v.ptr) = 0
+	case Uint16:
+		*(*uint16)(v.ptr) = 0
+	case Uint32:
+		*(*uint32)(v.ptr) = 0
+	case Uint64:
+		*(*uint64)(v.ptr) = 0
+	case Uintptr:
+		*(*uintptr)(v.ptr) = 0
+	case Float32:
+		*(*float32)(v.ptr) = 0
+	case Float64:
+		*(*float64)(v.ptr) = 0
+	case Complex64:
+		*(*complex64)(v.ptr) = 0
+	case Complex128:
+		*(*complex128)(v.ptr) = 0
+	case String:
+		*(*string)(v.ptr) = ""
+	case Slice:
+		*(*unsafeheaderSlice)(v.ptr) = unsafeheaderSlice{}
+	case Interface:
+		*(*[2]unsafe.Pointer)(v.ptr) = [2]unsafe.Pointer{}
+	case Chan, Func, Map, Pointer, UnsafePointer:
+		*(*unsafe.Pointer)(v.ptr) = nil
+	case Array, Struct:
+		typedmemclr(v.typ(), v.ptr)
+	default:
+		// This should never happen, but will act as a safeguard for later,
+		// as a default value doesn't makes sense here.
+		panic(&ValueError{"reflect.Value.SetZero", v.Kind()})
+	}
 }
 
 // Kind returns v's Kind.