mark IntGauge/IntSum/IntDataPoint as deprecated

cmd/pdatagen/internal/base_structs.go

@@ -26,6 +26,7 @@ const messageValueTemplate = `${description}
 //
 // Must use New${structName} function to create new instances.
 // Important: zero-initialized instance is not valid for use.
+// ${deprecated}
 type ${structName} struct {
 	orig *${originName}
 }
@@ -78,6 +79,7 @@ type messageValueStruct struct {
 	structName     string
 	description    string
 	originFullName string
+	deprecated     string
 	fields         []baseField
 }
 
@@ -94,6 +96,8 @@ func (ms *messageValueStruct) generateStruct(sb *strings.Builder) {
 			return ms.originFullName
 		case "description":
 			return ms.description
+		case "deprecated":
+			return ms.deprecated
 		default:
 			panic(name)
 		}

cmd/pdatagen/internal/metrics_structs.go

@@ -130,6 +130,7 @@ var intGauge = &messageValueStruct{
 	structName:     "IntGauge",
 	description:    "// IntGauge represents the type of a int scalar metric that always exports the \"current value\" for every data point.",
 	originFullName: "otlpmetrics.IntGauge",
+	deprecated:     "Deprecated: Use Gauge instead.",
 	fields: []baseField{
 		&sliceField{
 			fieldName:       "DataPoints",
@@ -156,6 +157,7 @@ var intSum = &messageValueStruct{
 	structName:     "IntSum",
 	description:    "// IntSum represents the type of a numeric int scalar metric that is calculated as a sum of all reported measurements over a time interval.",
 	originFullName: "otlpmetrics.IntSum",
+	deprecated:     "Deprecated: Use Sum instead.",
 	fields: []baseField{
 		aggregationTemporalityField,
 		isMonotonicField,
@@ -218,6 +220,7 @@ var intDataPoint = &messageValueStruct{
 	structName:     "IntDataPoint",
 	description:    "// IntDataPoint is a single data point in a timeseries that describes the time-varying values of a scalar int metric.",
 	originFullName: "otlpmetrics.IntDataPoint",
+	deprecated:     "Deprecated: Use NumberDataPoint instead.",
 	fields: []baseField{
 		labelsField,
 		startTimeField,