If it does not end with a json tag, omitempty cannot be removed after executing inject_tag.

[ghost]

Automatically generate pb files based on table structure:

type EntityGiftDetail struct {
	state         protoimpl.MessageState
	sizeCache     protoimpl.SizeCache
	unknownFields protoimpl.UnknownFields

	// @inject_tag: orm:"id,primary"
	Id uint32 `protobuf:"varint,1,opt,name=id,proto3" json:"id,omitempty" orm:"id,primary"` //
	// @inject_tag: orm:"name"
	Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name,omitempty" orm:"name"` // gift name
	// @inject_tag: orm:"app_id"
	AppId uint32 `protobuf:"varint,3,opt,name=app_id,json=appId,proto3" json:"app_id,omitempty" orm:"app_id"` // app ID
	// @inject_tag: orm:"is_combo"
	IsCombo uint32 `protobuf:"varint,4,opt,name=is_combo,json=isCombo,proto3" json:"is_combo,omitempty" orm:"is_combo"` // combo gift. 0:no,1:yes
}

expect:

type EntityGiftDetail struct {
	state         protoimpl.MessageState
	sizeCache     protoimpl.SizeCache
	unknownFields protoimpl.UnknownFields

	// @inject_tag: orm:"id,primary"
	Id uint32 `protobuf:"varint,1,opt,name=id,proto3" json:"id" orm:"id,primary"` //
	// @inject_tag: orm:"name"
	Name string `protobuf:"bytes,2,opt,name=name,proto3" json:"name" orm:"name"` // gift name
	// @inject_tag: orm:"app_id"
	AppId uint32 `protobuf:"varint,3,opt,name=app_id,json=appId,proto3" json:"app_id,omitempty" orm:"app_id"` // app ID
	// @inject_tag: orm:"is_combo"
	IsCombo uint32 `protobuf:"varint,4,opt,name=is_combo,json=isCombo,proto3" json:"is_combo" orm:"is_combo"` // combo gift. 0:no,1:yes
}

===============================================

But can be parsed normally in custom struct:

message UserVip {
  // @inject_tag: json:"unlock"
  uint32 unlock = 1;//show_tab=vip, Unlock required level
  // @inject_tag: json:"state"
  uint32 state = 2; //state. 0:not unlock,1: unlock already
}

output:

type UserVip struct {
	state         protoimpl.MessageState
	sizeCache     protoimpl.SizeCache
	unknownFields protoimpl.UnknownFields

	// @inject_tag: json:"unlock"
	Unlock uint32 `protobuf:"varint,1,opt,name=unlock,proto3" json:"unlock"` //show_tab=vip, Unlock required level
	// @inject_tag: json:"state"
	State uint32 `protobuf:"varint,2,opt,name=state,proto3" json:"state"` //state. 0:not unlock,1: unlock already
}