candiduslynx commented on code in PR #35457:
URL: https://github.com/apache/arrow/pull/35457#discussion_r1187605623
##########
go/internal/types/extension_types.go:
##########
@@ -208,37 +199,49 @@ type UUIDType struct {
// NewUUIDType is a convenience function to create an instance of UuidType
// with the correct storage type
func NewUUIDType() *UUIDType {
- return &UUIDType{
- ExtensionBase: arrow.ExtensionBase{
- Storage: &arrow.FixedSizeBinaryType{ByteWidth: 16}}}
+ return &UUIDType{ExtensionBase: arrow.ExtensionBase{Storage:
&arrow.FixedSizeBinaryType{ByteWidth: 16}}}
}
-// ArrayType returns TypeOf(UuidArray) for constructing uuid arrays
-func (UUIDType) ArrayType() reflect.Type { return reflect.TypeOf(UUIDArray{}) }
+// ArrayType returns TypeOf(UUIDArray{}) for constructing UUID arrays
+func (*UUIDType) ArrayType() reflect.Type {
+ return reflect.TypeOf(UUIDArray{})
+}
+
+func (*UUIDType) ExtensionName() string {
+ return "uuid"
+}
+
+func (e *UUIDType) String() string {
+ return fmt.Sprintf("extension_type<storage=%s>", e.Storage)
+}
-func (UUIDType) ExtensionName() string { return "uuid" }
+func (e *UUIDType) MarshalJSON() ([]byte, error) {
+ return []byte(fmt.Sprintf(`{"name":"%s","metadata":%s}`,
e.ExtensionName(), e.Serialize())), nil
+}
// Serialize returns "uuid-serialized" for testing proper metadata passing
-func (UUIDType) Serialize() string { return "uuid-serialized" }
+func (*UUIDType) Serialize() string {
+ return "uuid-serialized"
+}
// Deserialize expects storageType to be FixedSizeBinaryType{ByteWidth: 16}
and the data to be
-// "uuid-serialized" in order to correctly create a UUIDType for testing
deserialize.
-func (UUIDType) Deserialize(storageType arrow.DataType, data string)
(arrow.ExtensionType, error) {
- if string(data) != "uuid-serialized" {
- return nil, fmt.Errorf("type identifier did not match: '%s'",
string(data))
+// "uuid-serialized" in order to correctly create a UuidType for testing
deserialize.
+func (*UUIDType) Deserialize(storageType arrow.DataType, data string)
(arrow.ExtensionType, error) {
+ if data != "uuid-serialized" {
+ return nil, fmt.Errorf("type identifier did not match: '%s'",
data)
}
if !arrow.TypeEqual(storageType, &arrow.FixedSizeBinaryType{ByteWidth:
16}) {
- return nil, fmt.Errorf("invalid storage type for UUIDType: %s",
storageType.Name())
+ return nil, fmt.Errorf("invalid storage type for UuidType: %s",
storageType.Name())
}
return NewUUIDType(), nil
}
-// UuidTypes are equal if both are named "uuid"
-func (u UUIDType) ExtensionEquals(other arrow.ExtensionType) bool {
- return u.ExtensionName() == other.ExtensionName()
+// ExtensionEquals returns true if both extensions have the same name
+func (e *UUIDType) ExtensionEquals(other arrow.ExtensionType) bool {
Review Comment:
consistency only
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