language: fix Hover.Range omitempty field to pointer

Author: zchee

language.go

@@ -328,7 +328,7 @@ type Hover struct {
 
 	// Range an optional range is a range inside a text document
 	// that is used to visualize a hover, e.g. by changing the background color.
-	Range Range `json:"range,omitempty"`
+	Range *Range `json:"range,omitempty"`
 }
 
 // SignatureHelp signature help represents the signature of something

language_gojay.go

@@ -239,7 +239,7 @@ var (
 // MarshalJSONObject implements gojay.MarshalerJSONObject.
 func (v *Hover) MarshalJSONObject(enc *gojay.Encoder) {
 	enc.ObjectKey(keyContents, &v.Contents)
-	enc.ObjectKey(keyRange, &v.Range)
+	enc.ObjectKeyOmitEmpty(keyRange, v.Range)
 }
 
 // IsNil returns wether the structure is nil value or not.
@@ -251,7 +251,10 @@ func (v *Hover) UnmarshalJSONObject(dec *gojay.Decoder, k string) error {
 	case keyContents:
 		return dec.Object(&v.Contents)
 	case keyRange:
-		return dec.Object(&v.Range)
+		if v.Range == nil {
+			v.Range = &Range{}
+		}
+		return dec.Object(v.Range)
 	}
 	return nil
 }

language_test.go

@@ -810,7 +810,7 @@ func testHover(t *testing.T, marshal marshalFunc, unmarshal unmarshalFunc) {
 			Kind:  Markdown,
 			Value: "example value",
 		},
-		Range: Range{
+		Range: &Range{
 			Start: Position{
 				Line:      255,
 				Character: 4,