Rename structPointer_Map to structPointer_NewAt.

It was never map-specific, and will soon be used for other types.

proto/decode.go

@@ -675,7 +675,7 @@ func (o *Buffer) dec_new_map(p *Properties, base structPointer) error {
 	oi := o.index       // index at the end of this map entry
 	o.index -= len(raw) // move buffer back to start of map entry
 
-	mptr := structPointer_Map(base, p.field, p.mtype) // *map[K]V
+	mptr := structPointer_NewAt(base, p.field, p.mtype) // *map[K]V
 	if mptr.Elem().IsNil() {
 		mptr.Elem().Set(reflect.MakeMap(mptr.Type().Elem()))
 	}

proto/encode.go

@@ -1084,7 +1084,7 @@ func (o *Buffer) enc_new_map(p *Properties, base structPointer) error {
 			repeated MapFieldEntry map_field = N;
 	*/
 
-	v := structPointer_Map(base, p.field, p.mtype).Elem() // map[K]V
+	v := structPointer_NewAt(base, p.field, p.mtype).Elem() // map[K]V
 	if v.Len() == 0 {
 		return nil
 	}
@@ -1123,7 +1123,7 @@ func (o *Buffer) enc_new_map(p *Properties, base structPointer) error {
 }
 
 func size_new_map(p *Properties, base structPointer) int {
-	v := structPointer_Map(base, p.field, p.mtype).Elem() // map[K]V
+	v := structPointer_NewAt(base, p.field, p.mtype).Elem() // map[K]V
 
 	keycopy, valcopy, keybase, valbase := mapEncodeScratch(p.mtype)
 

proto/pointer_reflect.go

@@ -144,8 +144,8 @@ func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
 	return structPointer_ifield(p, f).(*map[int32]Extension)
 }
 
-// Map returns the reflect.Value for the address of a map field in the struct.
-func structPointer_Map(p structPointer, f field, typ reflect.Type) reflect.Value {
+// NewAt returns the reflect.Value for a pointer to a field in the struct.
+func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
 	return structPointer_field(p, f).Addr()
 }
 

proto/pointer_unsafe.go

@@ -130,8 +130,8 @@ func structPointer_ExtMap(p structPointer, f field) *map[int32]Extension {
 	return (*map[int32]Extension)(unsafe.Pointer(uintptr(p) + uintptr(f)))
 }
 
-// Map returns the reflect.Value for the address of a map field in the struct.
-func structPointer_Map(p structPointer, f field, typ reflect.Type) reflect.Value {
+// NewAt returns the reflect.Value for a pointer to a field in the struct.
+func structPointer_NewAt(p structPointer, f field, typ reflect.Type) reflect.Value {
 	return reflect.NewAt(typ, unsafe.Pointer(uintptr(p)+uintptr(f)))
 }