diff --git a/tools/goctl/api/gogen/gen_test.go b/tools/goctl/api/gogen/gen_test.go
index 434de035..68139428 100644
--- a/tools/goctl/api/gogen/gen_test.go
+++ b/tools/goctl/api/gogen/gen_test.go
@@ -78,7 +78,7 @@ service A-api {
   @server(
     handler: NoResponseHandler
   )
-  get /greet/get(Request) returns
+  get /greet/get(Request)
 }
 `
 
diff --git a/tools/goctl/api/parser/g4/ApiParser.g4 b/tools/goctl/api/parser/g4/ApiParser.g4
index 1cce30d0..2f31447d 100644
--- a/tools/goctl/api/parser/g4/ApiParser.g4
+++ b/tools/goctl/api/parser/g4/ApiParser.g4
@@ -63,9 +63,9 @@ serviceApi:     {match(p,"service")}serviceToken=ID serviceName lbrace='{' servi
 serviceRoute:   atDoc? (atServer|atHandler) route;
 atDoc:          ATDOC lp='('? ((kvLit+)|STRING) rp=')'?;
 atHandler:      ATHANDLER ID;
-route:          {checkHTTPMethod(p)}httpMethod=ID path request=body? returnToken=ID? response=replybody?;
+route:          {checkHTTPMethod(p)}httpMethod=ID path request=body? response=replybody?;
 body:           lp='(' (ID)? rp=')';
-replybody:      lp='(' dataType? rp=')';
+replybody:      returnToken='returns' lp='(' dataType? rp=')';
 // kv
 kvLit:          key=ID {checkKeyValue(p)}value=LINE_VALUE;
 
diff --git a/tools/goctl/api/parser/g4/ast/ast.go b/tools/goctl/api/parser/g4/ast/ast.go
index b166d2e7..2f708801 100644
--- a/tools/goctl/api/parser/g4/ast/ast.go
+++ b/tools/goctl/api/parser/g4/ast/ast.go
@@ -21,7 +21,7 @@ type (
 	// ApiVisitor wraps api.BaseApiParserVisitor to call methods which has prefix Visit to
 	// visit node from the api syntax
 	ApiVisitor struct {
-		api.BaseApiParserVisitor
+		*api.BaseApiParserVisitor
 		debug    bool
 		log      console.Console
 		prefix   string
diff --git a/tools/goctl/api/parser/g4/ast/service.go b/tools/goctl/api/parser/g4/ast/service.go
index e3eb8855..4c39509f 100644
--- a/tools/goctl/api/parser/g4/ast/service.go
+++ b/tools/goctl/api/parser/g4/ast/service.go
@@ -71,9 +71,10 @@ type Route struct {
 
 // Body describes request,response body ast for api syntax
 type Body struct {
-	Lp   Expr
-	Rp   Expr
-	Name DataType
+	ReturnExpr Expr
+	Lp         Expr
+	Rp         Expr
+	Name       DataType
 }
 
 // VisitServiceSpec implements from api.BaseApiParserVisitor
@@ -175,7 +176,7 @@ func (v *ApiVisitor) VisitAtHandler(ctx *api.AtHandlerContext) interface{} {
 	return &atHandler
 }
 
-// VisitRoute implements from api.BaseApiParserVisitor
+// serVisitRoute implements from api.BaseApiParserVisitor
 func (v *ApiVisitor) VisitRoute(ctx *api.RouteContext) interface{} {
 	var route Route
 	path := ctx.Path()
@@ -193,16 +194,12 @@ func (v *ApiVisitor) VisitRoute(ctx *api.RouteContext) interface{} {
 	if ctx.GetResponse() != nil {
 		reply := ctx.GetResponse().Accept(v)
 		if reply != nil {
-			route.Reply = reply.(*Body)
+			resp := reply.(*Body)
+			route.ReturnToken = resp.ReturnExpr
+			resp.ReturnExpr = nil
+			route.Reply = resp
 		}
 	}
-	if ctx.GetReturnToken() != nil {
-		returnExpr := v.newExprWithToken(ctx.GetReturnToken())
-		if ctx.GetReturnToken().GetText() != "returns" {
-			v.panic(returnExpr, fmt.Sprintf("expecting returns, found input '%s'", ctx.GetReturnToken().GetText()))
-		}
-		route.ReturnToken = returnExpr
-	}
 
 	route.DocExpr = v.getDoc(ctx)
 	route.CommentExpr = v.getComment(ctx)
@@ -249,6 +246,14 @@ func (v *ApiVisitor) VisitReplybody(ctx *api.ReplybodyContext) interface{} {
 		return nil
 	}
 
+	var returnExpr Expr
+	if ctx.GetReturnToken() != nil {
+		returnExpr = v.newExprWithToken(ctx.GetReturnToken())
+		if ctx.GetReturnToken().GetText() != "returns" {
+			v.panic(returnExpr, fmt.Sprintf("expecting returns, found input '%s'", ctx.GetReturnToken().GetText()))
+		}
+	}
+
 	dt := ctx.DataType().Accept(v).(DataType)
 	if dt == nil {
 		return nil
@@ -275,9 +280,10 @@ func (v *ApiVisitor) VisitReplybody(ctx *api.ReplybodyContext) interface{} {
 	}
 
 	return &Body{
-		Lp:   v.newExprWithToken(ctx.GetLp()),
-		Rp:   v.newExprWithToken(ctx.GetRp()),
-		Name: dt,
+		ReturnExpr: returnExpr,
+		Lp:         v.newExprWithToken(ctx.GetLp()),
+		Rp:         v.newExprWithToken(ctx.GetRp()),
+		Name:       dt,
 	}
 }
 
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_base_visitor.go b/tools/goctl/api/parser/g4/gen/api/apiparser_base_visitor.go
index 1651d432..14de43f8 100644
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_base_visitor.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_base_visitor.go
@@ -1,3 +1,4 @@
+
 package api // ApiParser
 import "github.com/zeromicro/antlr"
 
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_lexer.go b/tools/goctl/api/parser/g4/gen/api/apiparser_lexer.go
index b790bc53..2e0413f0 100644
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_lexer.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_lexer.go
@@ -1,143 +1,146 @@
 package api
-
 import (
 	"fmt"
 	"unicode"
 
 	"github.com/zeromicro/antlr"
 )
-
 // Suppress unused import error
 var _ = fmt.Printf
 var _ = unicode.IsLetter
 
+
 var serializedLexerAtn = []uint16{
-	3, 24715, 42794, 33075, 47597, 16764, 15335, 30598, 22884, 2, 25, 266,
-	8, 1, 4, 2, 9, 2, 4, 3, 9, 3, 4, 4, 9, 4, 4, 5, 9, 5, 4, 6, 9, 6, 4, 7,
-	9, 7, 4, 8, 9, 8, 4, 9, 9, 9, 4, 10, 9, 10, 4, 11, 9, 11, 4, 12, 9, 12,
-	4, 13, 9, 13, 4, 14, 9, 14, 4, 15, 9, 15, 4, 16, 9, 16, 4, 17, 9, 17, 4,
-	18, 9, 18, 4, 19, 9, 19, 4, 20, 9, 20, 4, 21, 9, 21, 4, 22, 9, 22, 4, 23,
-	9, 23, 4, 24, 9, 24, 4, 25, 9, 25, 4, 26, 9, 26, 4, 27, 9, 27, 4, 28, 9,
-	28, 4, 29, 9, 29, 4, 30, 9, 30, 4, 31, 9, 31, 3, 2, 3, 2, 3, 3, 3, 3, 3,
-	4, 3, 4, 3, 5, 3, 5, 3, 6, 3, 6, 3, 7, 3, 7, 3, 8, 3, 8, 3, 8, 3, 8, 3,
-	8, 3, 8, 3, 8, 3, 8, 3, 8, 3, 8, 3, 9, 3, 9, 3, 10, 3, 10, 3, 11, 3, 11,
-	3, 12, 3, 12, 3, 13, 3, 13, 3, 13, 3, 14, 3, 14, 3, 14, 3, 14, 3, 14, 3,
-	15, 3, 15, 3, 15, 3, 15, 3, 15, 3, 15, 3, 15, 3, 15, 3, 15, 3, 16, 3, 16,
-	3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3,
-	17, 3, 17, 3, 17, 3, 17, 3, 17, 3, 17, 3, 17, 3, 17, 3, 18, 6, 18, 132,
-	10, 18, 13, 18, 14, 18, 133, 3, 18, 3, 18, 3, 19, 3, 19, 3, 19, 3, 19,
-	7, 19, 142, 10, 19, 12, 19, 14, 19, 145, 11, 19, 3, 19, 3, 19, 3, 19, 3,
-	19, 3, 19, 3, 20, 3, 20, 3, 20, 3, 20, 7, 20, 156, 10, 20, 12, 20, 14,
-	20, 159, 11, 20, 3, 20, 3, 20, 3, 21, 3, 21, 3, 21, 7, 21, 166, 10, 21,
-	12, 21, 14, 21, 169, 11, 21, 3, 21, 3, 21, 3, 22, 3, 22, 3, 22, 6, 22,
-	176, 10, 22, 13, 22, 14, 22, 177, 3, 22, 3, 22, 3, 23, 3, 23, 7, 23, 184,
-	10, 23, 12, 23, 14, 23, 187, 11, 23, 3, 23, 3, 23, 7, 23, 191, 10, 23,
-	12, 23, 14, 23, 194, 11, 23, 5, 23, 196, 10, 23, 3, 24, 3, 24, 7, 24, 200,
-	10, 24, 12, 24, 14, 24, 203, 11, 24, 3, 25, 3, 25, 5, 25, 207, 10, 25,
-	3, 25, 3, 25, 3, 26, 3, 26, 3, 26, 3, 26, 5, 26, 215, 10, 26, 3, 26, 5,
-	26, 218, 10, 26, 3, 26, 3, 26, 3, 26, 6, 26, 223, 10, 26, 13, 26, 14, 26,
-	224, 3, 26, 3, 26, 3, 26, 3, 26, 3, 26, 5, 26, 232, 10, 26, 3, 27, 3, 27,
-	3, 27, 7, 27, 237, 10, 27, 12, 27, 14, 27, 240, 11, 27, 3, 27, 5, 27, 243,
-	10, 27, 3, 28, 3, 28, 3, 29, 3, 29, 7, 29, 249, 10, 29, 12, 29, 14, 29,
-	252, 11, 29, 3, 29, 5, 29, 255, 10, 29, 3, 30, 3, 30, 5, 30, 259, 10, 30,
-	3, 31, 3, 31, 3, 31, 3, 31, 5, 31, 265, 10, 31, 3, 143, 2, 32, 3, 3, 5,
-	4, 7, 5, 9, 6, 11, 7, 13, 8, 15, 9, 17, 10, 19, 11, 21, 12, 23, 13, 25,
-	14, 27, 15, 29, 16, 31, 17, 33, 18, 35, 19, 37, 20, 39, 21, 41, 22, 43,
-	23, 45, 24, 47, 25, 49, 2, 51, 2, 53, 2, 55, 2, 57, 2, 59, 2, 61, 2, 3,
-	2, 20, 5, 2, 11, 12, 14, 15, 34, 34, 4, 2, 12, 12, 15, 15, 4, 2, 36, 36,
-	94, 94, 6, 2, 12, 12, 15, 15, 94, 94, 98, 98, 4, 2, 11, 11, 34, 34, 6,
-	2, 12, 12, 15, 15, 36, 36, 98, 98, 4, 2, 71, 71, 103, 103, 4, 2, 45, 45,
-	47, 47, 10, 2, 36, 36, 41, 41, 94, 94, 100, 100, 104, 104, 112, 112, 116,
-	116, 118, 118, 3, 2, 50, 53, 3, 2, 50, 57, 5, 2, 50, 59, 67, 72, 99, 104,
-	3, 2, 50, 59, 4, 2, 50, 59, 97, 97, 6, 2, 38, 38, 67, 92, 97, 97, 99, 124,
-	4, 2, 2, 129, 55298, 56321, 3, 2, 55298, 56321, 3, 2, 56322, 57345, 2,
-	283, 2, 3, 3, 2, 2, 2, 2, 5, 3, 2, 2, 2, 2, 7, 3, 2, 2, 2, 2, 9, 3, 2,
-	2, 2, 2, 11, 3, 2, 2, 2, 2, 13, 3, 2, 2, 2, 2, 15, 3, 2, 2, 2, 2, 17, 3,
-	2, 2, 2, 2, 19, 3, 2, 2, 2, 2, 21, 3, 2, 2, 2, 2, 23, 3, 2, 2, 2, 2, 25,
-	3, 2, 2, 2, 2, 27, 3, 2, 2, 2, 2, 29, 3, 2, 2, 2, 2, 31, 3, 2, 2, 2, 2,
-	33, 3, 2, 2, 2, 2, 35, 3, 2, 2, 2, 2, 37, 3, 2, 2, 2, 2, 39, 3, 2, 2, 2,
-	2, 41, 3, 2, 2, 2, 2, 43, 3, 2, 2, 2, 2, 45, 3, 2, 2, 2, 2, 47, 3, 2, 2,
-	2, 3, 63, 3, 2, 2, 2, 5, 65, 3, 2, 2, 2, 7, 67, 3, 2, 2, 2, 9, 69, 3, 2,
-	2, 2, 11, 71, 3, 2, 2, 2, 13, 73, 3, 2, 2, 2, 15, 75, 3, 2, 2, 2, 17, 85,
-	3, 2, 2, 2, 19, 87, 3, 2, 2, 2, 21, 89, 3, 2, 2, 2, 23, 91, 3, 2, 2, 2,
-	25, 93, 3, 2, 2, 2, 27, 96, 3, 2, 2, 2, 29, 101, 3, 2, 2, 2, 31, 110, 3,
-	2, 2, 2, 33, 122, 3, 2, 2, 2, 35, 131, 3, 2, 2, 2, 37, 137, 3, 2, 2, 2,
-	39, 151, 3, 2, 2, 2, 41, 162, 3, 2, 2, 2, 43, 172, 3, 2, 2, 2, 45, 181,
-	3, 2, 2, 2, 47, 197, 3, 2, 2, 2, 49, 204, 3, 2, 2, 2, 51, 231, 3, 2, 2,
-	2, 53, 233, 3, 2, 2, 2, 55, 244, 3, 2, 2, 2, 57, 246, 3, 2, 2, 2, 59, 258,
-	3, 2, 2, 2, 61, 264, 3, 2, 2, 2, 63, 64, 7, 63, 2, 2, 64, 4, 3, 2, 2, 2,
-	65, 66, 7, 42, 2, 2, 66, 6, 3, 2, 2, 2, 67, 68, 7, 43, 2, 2, 68, 8, 3,
-	2, 2, 2, 69, 70, 7, 125, 2, 2, 70, 10, 3, 2, 2, 2, 71, 72, 7, 127, 2, 2,
-	72, 12, 3, 2, 2, 2, 73, 74, 7, 44, 2, 2, 74, 14, 3, 2, 2, 2, 75, 76, 7,
-	118, 2, 2, 76, 77, 7, 107, 2, 2, 77, 78, 7, 111, 2, 2, 78, 79, 7, 103,
-	2, 2, 79, 80, 7, 48, 2, 2, 80, 81, 7, 86, 2, 2, 81, 82, 7, 107, 2, 2, 82,
-	83, 7, 111, 2, 2, 83, 84, 7, 103, 2, 2, 84, 16, 3, 2, 2, 2, 85, 86, 7,
-	93, 2, 2, 86, 18, 3, 2, 2, 2, 87, 88, 7, 95, 2, 2, 88, 20, 3, 2, 2, 2,
-	89, 90, 7, 47, 2, 2, 90, 22, 3, 2, 2, 2, 91, 92, 7, 49, 2, 2, 92, 24, 3,
-	2, 2, 2, 93, 94, 7, 49, 2, 2, 94, 95, 7, 60, 2, 2, 95, 26, 3, 2, 2, 2,
-	96, 97, 7, 66, 2, 2, 97, 98, 7, 102, 2, 2, 98, 99, 7, 113, 2, 2, 99, 100,
-	7, 101, 2, 2, 100, 28, 3, 2, 2, 2, 101, 102, 7, 66, 2, 2, 102, 103, 7,
-	106, 2, 2, 103, 104, 7, 99, 2, 2, 104, 105, 7, 112, 2, 2, 105, 106, 7,
-	102, 2, 2, 106, 107, 7, 110, 2, 2, 107, 108, 7, 103, 2, 2, 108, 109, 7,
-	116, 2, 2, 109, 30, 3, 2, 2, 2, 110, 111, 7, 107, 2, 2, 111, 112, 7, 112,
-	2, 2, 112, 113, 7, 118, 2, 2, 113, 114, 7, 103, 2, 2, 114, 115, 7, 116,
-	2, 2, 115, 116, 7, 104, 2, 2, 116, 117, 7, 99, 2, 2, 117, 118, 7, 101,
-	2, 2, 118, 119, 7, 103, 2, 2, 119, 120, 7, 125, 2, 2, 120, 121, 7, 127,
-	2, 2, 121, 32, 3, 2, 2, 2, 122, 123, 7, 66, 2, 2, 123, 124, 7, 117, 2,
-	2, 124, 125, 7, 103, 2, 2, 125, 126, 7, 116, 2, 2, 126, 127, 7, 120, 2,
-	2, 127, 128, 7, 103, 2, 2, 128, 129, 7, 116, 2, 2, 129, 34, 3, 2, 2, 2,
-	130, 132, 9, 2, 2, 2, 131, 130, 3, 2, 2, 2, 132, 133, 3, 2, 2, 2, 133,
-	131, 3, 2, 2, 2, 133, 134, 3, 2, 2, 2, 134, 135, 3, 2, 2, 2, 135, 136,
-	8, 18, 2, 2, 136, 36, 3, 2, 2, 2, 137, 138, 7, 49, 2, 2, 138, 139, 7, 44,
-	2, 2, 139, 143, 3, 2, 2, 2, 140, 142, 11, 2, 2, 2, 141, 140, 3, 2, 2, 2,
-	142, 145, 3, 2, 2, 2, 143, 144, 3, 2, 2, 2, 143, 141, 3, 2, 2, 2, 144,
-	146, 3, 2, 2, 2, 145, 143, 3, 2, 2, 2, 146, 147, 7, 44, 2, 2, 147, 148,
-	7, 49, 2, 2, 148, 149, 3, 2, 2, 2, 149, 150, 8, 19, 3, 2, 150, 38, 3, 2,
-	2, 2, 151, 152, 7, 49, 2, 2, 152, 153, 7, 49, 2, 2, 153, 157, 3, 2, 2,
-	2, 154, 156, 10, 3, 2, 2, 155, 154, 3, 2, 2, 2, 156, 159, 3, 2, 2, 2, 157,
-	155, 3, 2, 2, 2, 157, 158, 3, 2, 2, 2, 158, 160, 3, 2, 2, 2, 159, 157,
-	3, 2, 2, 2, 160, 161, 8, 20, 3, 2, 161, 40, 3, 2, 2, 2, 162, 167, 7, 36,
-	2, 2, 163, 166, 10, 4, 2, 2, 164, 166, 5, 51, 26, 2, 165, 163, 3, 2, 2,
-	2, 165, 164, 3, 2, 2, 2, 166, 169, 3, 2, 2, 2, 167, 165, 3, 2, 2, 2, 167,
-	168, 3, 2, 2, 2, 168, 170, 3, 2, 2, 2, 169, 167, 3, 2, 2, 2, 170, 171,
-	7, 36, 2, 2, 171, 42, 3, 2, 2, 2, 172, 175, 7, 98, 2, 2, 173, 176, 10,
-	5, 2, 2, 174, 176, 5, 51, 26, 2, 175, 173, 3, 2, 2, 2, 175, 174, 3, 2,
-	2, 2, 176, 177, 3, 2, 2, 2, 177, 175, 3, 2, 2, 2, 177, 178, 3, 2, 2, 2,
-	178, 179, 3, 2, 2, 2, 179, 180, 7, 98, 2, 2, 180, 44, 3, 2, 2, 2, 181,
-	185, 7, 60, 2, 2, 182, 184, 9, 6, 2, 2, 183, 182, 3, 2, 2, 2, 184, 187,
-	3, 2, 2, 2, 185, 183, 3, 2, 2, 2, 185, 186, 3, 2, 2, 2, 186, 195, 3, 2,
-	2, 2, 187, 185, 3, 2, 2, 2, 188, 196, 5, 41, 21, 2, 189, 191, 10, 7, 2,
-	2, 190, 189, 3, 2, 2, 2, 191, 194, 3, 2, 2, 2, 192, 190, 3, 2, 2, 2, 192,
-	193, 3, 2, 2, 2, 193, 196, 3, 2, 2, 2, 194, 192, 3, 2, 2, 2, 195, 188,
-	3, 2, 2, 2, 195, 192, 3, 2, 2, 2, 196, 46, 3, 2, 2, 2, 197, 201, 5, 61,
-	31, 2, 198, 200, 5, 59, 30, 2, 199, 198, 3, 2, 2, 2, 200, 203, 3, 2, 2,
-	2, 201, 199, 3, 2, 2, 2, 201, 202, 3, 2, 2, 2, 202, 48, 3, 2, 2, 2, 203,
-	201, 3, 2, 2, 2, 204, 206, 9, 8, 2, 2, 205, 207, 9, 9, 2, 2, 206, 205,
-	3, 2, 2, 2, 206, 207, 3, 2, 2, 2, 207, 208, 3, 2, 2, 2, 208, 209, 5, 57,
-	29, 2, 209, 50, 3, 2, 2, 2, 210, 211, 7, 94, 2, 2, 211, 232, 9, 10, 2,
-	2, 212, 217, 7, 94, 2, 2, 213, 215, 9, 11, 2, 2, 214, 213, 3, 2, 2, 2,
-	214, 215, 3, 2, 2, 2, 215, 216, 3, 2, 2, 2, 216, 218, 9, 12, 2, 2, 217,
-	214, 3, 2, 2, 2, 217, 218, 3, 2, 2, 2, 218, 219, 3, 2, 2, 2, 219, 232,
-	9, 12, 2, 2, 220, 222, 7, 94, 2, 2, 221, 223, 7, 119, 2, 2, 222, 221, 3,
-	2, 2, 2, 223, 224, 3, 2, 2, 2, 224, 222, 3, 2, 2, 2, 224, 225, 3, 2, 2,
-	2, 225, 226, 3, 2, 2, 2, 226, 227, 5, 55, 28, 2, 227, 228, 5, 55, 28, 2,
-	228, 229, 5, 55, 28, 2, 229, 230, 5, 55, 28, 2, 230, 232, 3, 2, 2, 2, 231,
-	210, 3, 2, 2, 2, 231, 212, 3, 2, 2, 2, 231, 220, 3, 2, 2, 2, 232, 52, 3,
-	2, 2, 2, 233, 242, 5, 55, 28, 2, 234, 237, 5, 55, 28, 2, 235, 237, 7, 97,
-	2, 2, 236, 234, 3, 2, 2, 2, 236, 235, 3, 2, 2, 2, 237, 240, 3, 2, 2, 2,
-	238, 236, 3, 2, 2, 2, 238, 239, 3, 2, 2, 2, 239, 241, 3, 2, 2, 2, 240,
-	238, 3, 2, 2, 2, 241, 243, 5, 55, 28, 2, 242, 238, 3, 2, 2, 2, 242, 243,
-	3, 2, 2, 2, 243, 54, 3, 2, 2, 2, 244, 245, 9, 13, 2, 2, 245, 56, 3, 2,
-	2, 2, 246, 254, 9, 14, 2, 2, 247, 249, 9, 15, 2, 2, 248, 247, 3, 2, 2,
-	2, 249, 252, 3, 2, 2, 2, 250, 248, 3, 2, 2, 2, 250, 251, 3, 2, 2, 2, 251,
-	253, 3, 2, 2, 2, 252, 250, 3, 2, 2, 2, 253, 255, 9, 14, 2, 2, 254, 250,
-	3, 2, 2, 2, 254, 255, 3, 2, 2, 2, 255, 58, 3, 2, 2, 2, 256, 259, 5, 61,
-	31, 2, 257, 259, 9, 14, 2, 2, 258, 256, 3, 2, 2, 2, 258, 257, 3, 2, 2,
-	2, 259, 60, 3, 2, 2, 2, 260, 265, 9, 16, 2, 2, 261, 265, 10, 17, 2, 2,
-	262, 263, 9, 18, 2, 2, 263, 265, 9, 19, 2, 2, 264, 260, 3, 2, 2, 2, 264,
-	261, 3, 2, 2, 2, 264, 262, 3, 2, 2, 2, 265, 62, 3, 2, 2, 2, 26, 2, 133,
-	143, 157, 165, 167, 175, 177, 185, 192, 195, 201, 206, 214, 217, 224, 231,
-	236, 238, 242, 250, 254, 258, 264, 4, 2, 3, 2, 2, 90, 2,
+	3, 24715, 42794, 33075, 47597, 16764, 15335, 30598, 22884, 2, 26, 276, 
+	8, 1, 4, 2, 9, 2, 4, 3, 9, 3, 4, 4, 9, 4, 4, 5, 9, 5, 4, 6, 9, 6, 4, 7, 
+	9, 7, 4, 8, 9, 8, 4, 9, 9, 9, 4, 10, 9, 10, 4, 11, 9, 11, 4, 12, 9, 12, 
+	4, 13, 9, 13, 4, 14, 9, 14, 4, 15, 9, 15, 4, 16, 9, 16, 4, 17, 9, 17, 4, 
+	18, 9, 18, 4, 19, 9, 19, 4, 20, 9, 20, 4, 21, 9, 21, 4, 22, 9, 22, 4, 23, 
+	9, 23, 4, 24, 9, 24, 4, 25, 9, 25, 4, 26, 9, 26, 4, 27, 9, 27, 4, 28, 9, 
+	28, 4, 29, 9, 29, 4, 30, 9, 30, 4, 31, 9, 31, 4, 32, 9, 32, 3, 2, 3, 2, 
+	3, 3, 3, 3, 3, 4, 3, 4, 3, 5, 3, 5, 3, 6, 3, 6, 3, 7, 3, 7, 3, 8, 3, 8, 
+	3, 8, 3, 8, 3, 8, 3, 8, 3, 8, 3, 8, 3, 8, 3, 8, 3, 9, 3, 9, 3, 10, 3, 10, 
+	3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 11, 3, 12, 3, 12, 3, 
+	13, 3, 13, 3, 14, 3, 14, 3, 14, 3, 15, 3, 15, 3, 15, 3, 15, 3, 15, 3, 16, 
+	3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3, 16, 3, 17, 3, 17, 3, 
+	17, 3, 17, 3, 17, 3, 17, 3, 17, 3, 17, 3, 17, 3, 17, 3, 17, 3, 17, 3, 18, 
+	3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 18, 3, 19, 6, 19, 142, 10, 
+	19, 13, 19, 14, 19, 143, 3, 19, 3, 19, 3, 20, 3, 20, 3, 20, 3, 20, 7, 20, 
+	152, 10, 20, 12, 20, 14, 20, 155, 11, 20, 3, 20, 3, 20, 3, 20, 3, 20, 3, 
+	20, 3, 21, 3, 21, 3, 21, 3, 21, 7, 21, 166, 10, 21, 12, 21, 14, 21, 169, 
+	11, 21, 3, 21, 3, 21, 3, 22, 3, 22, 3, 22, 7, 22, 176, 10, 22, 12, 22, 
+	14, 22, 179, 11, 22, 3, 22, 3, 22, 3, 23, 3, 23, 3, 23, 6, 23, 186, 10, 
+	23, 13, 23, 14, 23, 187, 3, 23, 3, 23, 3, 24, 3, 24, 7, 24, 194, 10, 24, 
+	12, 24, 14, 24, 197, 11, 24, 3, 24, 3, 24, 7, 24, 201, 10, 24, 12, 24, 
+	14, 24, 204, 11, 24, 5, 24, 206, 10, 24, 3, 25, 3, 25, 7, 25, 210, 10, 
+	25, 12, 25, 14, 25, 213, 11, 25, 3, 26, 3, 26, 5, 26, 217, 10, 26, 3, 26, 
+	3, 26, 3, 27, 3, 27, 3, 27, 3, 27, 5, 27, 225, 10, 27, 3, 27, 5, 27, 228, 
+	10, 27, 3, 27, 3, 27, 3, 27, 6, 27, 233, 10, 27, 13, 27, 14, 27, 234, 3, 
+	27, 3, 27, 3, 27, 3, 27, 3, 27, 5, 27, 242, 10, 27, 3, 28, 3, 28, 3, 28, 
+	7, 28, 247, 10, 28, 12, 28, 14, 28, 250, 11, 28, 3, 28, 5, 28, 253, 10, 
+	28, 3, 29, 3, 29, 3, 30, 3, 30, 7, 30, 259, 10, 30, 12, 30, 14, 30, 262, 
+	11, 30, 3, 30, 5, 30, 265, 10, 30, 3, 31, 3, 31, 5, 31, 269, 10, 31, 3, 
+	32, 3, 32, 3, 32, 3, 32, 5, 32, 275, 10, 32, 3, 153, 2, 33, 3, 3, 5, 4, 
+	7, 5, 9, 6, 11, 7, 13, 8, 15, 9, 17, 10, 19, 11, 21, 12, 23, 13, 25, 14, 
+	27, 15, 29, 16, 31, 17, 33, 18, 35, 19, 37, 20, 39, 21, 41, 22, 43, 23, 
+	45, 24, 47, 25, 49, 26, 51, 2, 53, 2, 55, 2, 57, 2, 59, 2, 61, 2, 63, 2, 
+	3, 2, 20, 5, 2, 11, 12, 14, 15, 34, 34, 4, 2, 12, 12, 15, 15, 4, 2, 36, 
+	36, 94, 94, 6, 2, 12, 12, 15, 15, 94, 94, 98, 98, 4, 2, 11, 11, 34, 34, 
+	6, 2, 12, 12, 15, 15, 36, 36, 98, 98, 4, 2, 71, 71, 103, 103, 4, 2, 45, 
+	45, 47, 47, 10, 2, 36, 36, 41, 41, 94, 94, 100, 100, 104, 104, 112, 112, 
+	116, 116, 118, 118, 3, 2, 50, 53, 3, 2, 50, 57, 5, 2, 50, 59, 67, 72, 99, 
+	104, 3, 2, 50, 59, 4, 2, 50, 59, 97, 97, 6, 2, 38, 38, 67, 92, 97, 97, 
+	99, 124, 4, 2, 2, 129, 55298, 56321, 3, 2, 55298, 56321, 3, 2, 56322, 57345, 
+	2, 293, 2, 3, 3, 2, 2, 2, 2, 5, 3, 2, 2, 2, 2, 7, 3, 2, 2, 2, 2, 9, 3, 
+	2, 2, 2, 2, 11, 3, 2, 2, 2, 2, 13, 3, 2, 2, 2, 2, 15, 3, 2, 2, 2, 2, 17, 
+	3, 2, 2, 2, 2, 19, 3, 2, 2, 2, 2, 21, 3, 2, 2, 2, 2, 23, 3, 2, 2, 2, 2, 
+	25, 3, 2, 2, 2, 2, 27, 3, 2, 2, 2, 2, 29, 3, 2, 2, 2, 2, 31, 3, 2, 2, 2, 
+	2, 33, 3, 2, 2, 2, 2, 35, 3, 2, 2, 2, 2, 37, 3, 2, 2, 2, 2, 39, 3, 2, 2, 
+	2, 2, 41, 3, 2, 2, 2, 2, 43, 3, 2, 2, 2, 2, 45, 3, 2, 2, 2, 2, 47, 3, 2, 
+	2, 2, 2, 49, 3, 2, 2, 2, 3, 65, 3, 2, 2, 2, 5, 67, 3, 2, 2, 2, 7, 69, 3, 
+	2, 2, 2, 9, 71, 3, 2, 2, 2, 11, 73, 3, 2, 2, 2, 13, 75, 3, 2, 2, 2, 15, 
+	77, 3, 2, 2, 2, 17, 87, 3, 2, 2, 2, 19, 89, 3, 2, 2, 2, 21, 91, 3, 2, 2, 
+	2, 23, 99, 3, 2, 2, 2, 25, 101, 3, 2, 2, 2, 27, 103, 3, 2, 2, 2, 29, 106, 
+	3, 2, 2, 2, 31, 111, 3, 2, 2, 2, 33, 120, 3, 2, 2, 2, 35, 132, 3, 2, 2, 
+	2, 37, 141, 3, 2, 2, 2, 39, 147, 3, 2, 2, 2, 41, 161, 3, 2, 2, 2, 43, 172, 
+	3, 2, 2, 2, 45, 182, 3, 2, 2, 2, 47, 191, 3, 2, 2, 2, 49, 207, 3, 2, 2, 
+	2, 51, 214, 3, 2, 2, 2, 53, 241, 3, 2, 2, 2, 55, 243, 3, 2, 2, 2, 57, 254, 
+	3, 2, 2, 2, 59, 256, 3, 2, 2, 2, 61, 268, 3, 2, 2, 2, 63, 274, 3, 2, 2, 
+	2, 65, 66, 7, 63, 2, 2, 66, 4, 3, 2, 2, 2, 67, 68, 7, 42, 2, 2, 68, 6, 
+	3, 2, 2, 2, 69, 70, 7, 43, 2, 2, 70, 8, 3, 2, 2, 2, 71, 72, 7, 125, 2, 
+	2, 72, 10, 3, 2, 2, 2, 73, 74, 7, 127, 2, 2, 74, 12, 3, 2, 2, 2, 75, 76, 
+	7, 44, 2, 2, 76, 14, 3, 2, 2, 2, 77, 78, 7, 118, 2, 2, 78, 79, 7, 107, 
+	2, 2, 79, 80, 7, 111, 2, 2, 80, 81, 7, 103, 2, 2, 81, 82, 7, 48, 2, 2, 
+	82, 83, 7, 86, 2, 2, 83, 84, 7, 107, 2, 2, 84, 85, 7, 111, 2, 2, 85, 86, 
+	7, 103, 2, 2, 86, 16, 3, 2, 2, 2, 87, 88, 7, 93, 2, 2, 88, 18, 3, 2, 2, 
+	2, 89, 90, 7, 95, 2, 2, 90, 20, 3, 2, 2, 2, 91, 92, 7, 116, 2, 2, 92, 93, 
+	7, 103, 2, 2, 93, 94, 7, 118, 2, 2, 94, 95, 7, 119, 2, 2, 95, 96, 7, 116, 
+	2, 2, 96, 97, 7, 112, 2, 2, 97, 98, 7, 117, 2, 2, 98, 22, 3, 2, 2, 2, 99, 
+	100, 7, 47, 2, 2, 100, 24, 3, 2, 2, 2, 101, 102, 7, 49, 2, 2, 102, 26, 
+	3, 2, 2, 2, 103, 104, 7, 49, 2, 2, 104, 105, 7, 60, 2, 2, 105, 28, 3, 2, 
+	2, 2, 106, 107, 7, 66, 2, 2, 107, 108, 7, 102, 2, 2, 108, 109, 7, 113, 
+	2, 2, 109, 110, 7, 101, 2, 2, 110, 30, 3, 2, 2, 2, 111, 112, 7, 66, 2, 
+	2, 112, 113, 7, 106, 2, 2, 113, 114, 7, 99, 2, 2, 114, 115, 7, 112, 2, 
+	2, 115, 116, 7, 102, 2, 2, 116, 117, 7, 110, 2, 2, 117, 118, 7, 103, 2, 
+	2, 118, 119, 7, 116, 2, 2, 119, 32, 3, 2, 2, 2, 120, 121, 7, 107, 2, 2, 
+	121, 122, 7, 112, 2, 2, 122, 123, 7, 118, 2, 2, 123, 124, 7, 103, 2, 2, 
+	124, 125, 7, 116, 2, 2, 125, 126, 7, 104, 2, 2, 126, 127, 7, 99, 2, 2, 
+	127, 128, 7, 101, 2, 2, 128, 129, 7, 103, 2, 2, 129, 130, 7, 125, 2, 2, 
+	130, 131, 7, 127, 2, 2, 131, 34, 3, 2, 2, 2, 132, 133, 7, 66, 2, 2, 133, 
+	134, 7, 117, 2, 2, 134, 135, 7, 103, 2, 2, 135, 136, 7, 116, 2, 2, 136, 
+	137, 7, 120, 2, 2, 137, 138, 7, 103, 2, 2, 138, 139, 7, 116, 2, 2, 139, 
+	36, 3, 2, 2, 2, 140, 142, 9, 2, 2, 2, 141, 140, 3, 2, 2, 2, 142, 143, 3, 
+	2, 2, 2, 143, 141, 3, 2, 2, 2, 143, 144, 3, 2, 2, 2, 144, 145, 3, 2, 2, 
+	2, 145, 146, 8, 19, 2, 2, 146, 38, 3, 2, 2, 2, 147, 148, 7, 49, 2, 2, 148, 
+	149, 7, 44, 2, 2, 149, 153, 3, 2, 2, 2, 150, 152, 11, 2, 2, 2, 151, 150, 
+	3, 2, 2, 2, 152, 155, 3, 2, 2, 2, 153, 154, 3, 2, 2, 2, 153, 151, 3, 2, 
+	2, 2, 154, 156, 3, 2, 2, 2, 155, 153, 3, 2, 2, 2, 156, 157, 7, 44, 2, 2, 
+	157, 158, 7, 49, 2, 2, 158, 159, 3, 2, 2, 2, 159, 160, 8, 20, 3, 2, 160, 
+	40, 3, 2, 2, 2, 161, 162, 7, 49, 2, 2, 162, 163, 7, 49, 2, 2, 163, 167, 
+	3, 2, 2, 2, 164, 166, 10, 3, 2, 2, 165, 164, 3, 2, 2, 2, 166, 169, 3, 2, 
+	2, 2, 167, 165, 3, 2, 2, 2, 167, 168, 3, 2, 2, 2, 168, 170, 3, 2, 2, 2, 
+	169, 167, 3, 2, 2, 2, 170, 171, 8, 21, 3, 2, 171, 42, 3, 2, 2, 2, 172, 
+	177, 7, 36, 2, 2, 173, 176, 10, 4, 2, 2, 174, 176, 5, 53, 27, 2, 175, 173, 
+	3, 2, 2, 2, 175, 174, 3, 2, 2, 2, 176, 179, 3, 2, 2, 2, 177, 175, 3, 2, 
+	2, 2, 177, 178, 3, 2, 2, 2, 178, 180, 3, 2, 2, 2, 179, 177, 3, 2, 2, 2, 
+	180, 181, 7, 36, 2, 2, 181, 44, 3, 2, 2, 2, 182, 185, 7, 98, 2, 2, 183, 
+	186, 10, 5, 2, 2, 184, 186, 5, 53, 27, 2, 185, 183, 3, 2, 2, 2, 185, 184, 
+	3, 2, 2, 2, 186, 187, 3, 2, 2, 2, 187, 185, 3, 2, 2, 2, 187, 188, 3, 2, 
+	2, 2, 188, 189, 3, 2, 2, 2, 189, 190, 7, 98, 2, 2, 190, 46, 3, 2, 2, 2, 
+	191, 195, 7, 60, 2, 2, 192, 194, 9, 6, 2, 2, 193, 192, 3, 2, 2, 2, 194, 
+	197, 3, 2, 2, 2, 195, 193, 3, 2, 2, 2, 195, 196, 3, 2, 2, 2, 196, 205, 
+	3, 2, 2, 2, 197, 195, 3, 2, 2, 2, 198, 206, 5, 43, 22, 2, 199, 201, 10, 
+	7, 2, 2, 200, 199, 3, 2, 2, 2, 201, 204, 3, 2, 2, 2, 202, 200, 3, 2, 2, 
+	2, 202, 203, 3, 2, 2, 2, 203, 206, 3, 2, 2, 2, 204, 202, 3, 2, 2, 2, 205, 
+	198, 3, 2, 2, 2, 205, 202, 3, 2, 2, 2, 206, 48, 3, 2, 2, 2, 207, 211, 5, 
+	63, 32, 2, 208, 210, 5, 61, 31, 2, 209, 208, 3, 2, 2, 2, 210, 213, 3, 2, 
+	2, 2, 211, 209, 3, 2, 2, 2, 211, 212, 3, 2, 2, 2, 212, 50, 3, 2, 2, 2, 
+	213, 211, 3, 2, 2, 2, 214, 216, 9, 8, 2, 2, 215, 217, 9, 9, 2, 2, 216, 
+	215, 3, 2, 2, 2, 216, 217, 3, 2, 2, 2, 217, 218, 3, 2, 2, 2, 218, 219, 
+	5, 59, 30, 2, 219, 52, 3, 2, 2, 2, 220, 221, 7, 94, 2, 2, 221, 242, 9, 
+	10, 2, 2, 222, 227, 7, 94, 2, 2, 223, 225, 9, 11, 2, 2, 224, 223, 3, 2, 
+	2, 2, 224, 225, 3, 2, 2, 2, 225, 226, 3, 2, 2, 2, 226, 228, 9, 12, 2, 2, 
+	227, 224, 3, 2, 2, 2, 227, 228, 3, 2, 2, 2, 228, 229, 3, 2, 2, 2, 229, 
+	242, 9, 12, 2, 2, 230, 232, 7, 94, 2, 2, 231, 233, 7, 119, 2, 2, 232, 231, 
+	3, 2, 2, 2, 233, 234, 3, 2, 2, 2, 234, 232, 3, 2, 2, 2, 234, 235, 3, 2, 
+	2, 2, 235, 236, 3, 2, 2, 2, 236, 237, 5, 57, 29, 2, 237, 238, 5, 57, 29, 
+	2, 238, 239, 5, 57, 29, 2, 239, 240, 5, 57, 29, 2, 240, 242, 3, 2, 2, 2, 
+	241, 220, 3, 2, 2, 2, 241, 222, 3, 2, 2, 2, 241, 230, 3, 2, 2, 2, 242, 
+	54, 3, 2, 2, 2, 243, 252, 5, 57, 29, 2, 244, 247, 5, 57, 29, 2, 245, 247, 
+	7, 97, 2, 2, 246, 244, 3, 2, 2, 2, 246, 245, 3, 2, 2, 2, 247, 250, 3, 2, 
+	2, 2, 248, 246, 3, 2, 2, 2, 248, 249, 3, 2, 2, 2, 249, 251, 3, 2, 2, 2, 
+	250, 248, 3, 2, 2, 2, 251, 253, 5, 57, 29, 2, 252, 248, 3, 2, 2, 2, 252, 
+	253, 3, 2, 2, 2, 253, 56, 3, 2, 2, 2, 254, 255, 9, 13, 2, 2, 255, 58, 3, 
+	2, 2, 2, 256, 264, 9, 14, 2, 2, 257, 259, 9, 15, 2, 2, 258, 257, 3, 2, 
+	2, 2, 259, 262, 3, 2, 2, 2, 260, 258, 3, 2, 2, 2, 260, 261, 3, 2, 2, 2, 
+	261, 263, 3, 2, 2, 2, 262, 260, 3, 2, 2, 2, 263, 265, 9, 14, 2, 2, 264, 
+	260, 3, 2, 2, 2, 264, 265, 3, 2, 2, 2, 265, 60, 3, 2, 2, 2, 266, 269, 5, 
+	63, 32, 2, 267, 269, 9, 14, 2, 2, 268, 266, 3, 2, 2, 2, 268, 267, 3, 2, 
+	2, 2, 269, 62, 3, 2, 2, 2, 270, 275, 9, 16, 2, 2, 271, 275, 10, 17, 2, 
+	2, 272, 273, 9, 18, 2, 2, 273, 275, 9, 19, 2, 2, 274, 270, 3, 2, 2, 2, 
+	274, 271, 3, 2, 2, 2, 274, 272, 3, 2, 2, 2, 275, 64, 3, 2, 2, 2, 26, 2, 
+	143, 153, 167, 175, 177, 185, 187, 195, 202, 205, 211, 216, 224, 227, 234, 
+	241, 246, 248, 252, 260, 264, 268, 274, 4, 2, 3, 2, 2, 90, 2,
 }
 
 var lexerChannelNames = []string{
@@ -149,28 +152,28 @@ var lexerModeNames = []string{
 }
 
 var lexerLiteralNames = []string{
-	"", "'='", "'('", "')'", "'{'", "'}'", "'*'", "'time.Time'", "'['", "']'",
-	"'-'", "'/'", "'/:'", "'@doc'", "'@handler'", "'interface{}'", "'@server'",
+	"", "'='", "'('", "')'", "'{'", "'}'", "'*'", "'time.Time'", "'['", "']'", 
+	"'returns'", "'-'", "'/'", "'/:'", "'@doc'", "'@handler'", "'interface{}'", 
+	"'@server'",
 }
 
 var lexerSymbolicNames = []string{
-	"", "", "", "", "", "", "", "", "", "", "", "", "", "ATDOC", "ATHANDLER",
-	"INTERFACE", "ATSERVER", "WS", "COMMENT", "LINE_COMMENT", "STRING", "RAW_STRING",
+	"", "", "", "", "", "", "", "", "", "", "", "", "", "", "ATDOC", "ATHANDLER", 
+	"INTERFACE", "ATSERVER", "WS", "COMMENT", "LINE_COMMENT", "STRING", "RAW_STRING", 
 	"LINE_VALUE", "ID",
 }
 
 var lexerRuleNames = []string{
-	"T__0", "T__1", "T__2", "T__3", "T__4", "T__5", "T__6", "T__7", "T__8",
-	"T__9", "T__10", "T__11", "ATDOC", "ATHANDLER", "INTERFACE", "ATSERVER",
-	"WS", "COMMENT", "LINE_COMMENT", "STRING", "RAW_STRING", "LINE_VALUE",
-	"ID", "ExponentPart", "EscapeSequence", "HexDigits", "HexDigit", "Digits",
+	"T__0", "T__1", "T__2", "T__3", "T__4", "T__5", "T__6", "T__7", "T__8", 
+	"T__9", "T__10", "T__11", "T__12", "ATDOC", "ATHANDLER", "INTERFACE", "ATSERVER", 
+	"WS", "COMMENT", "LINE_COMMENT", "STRING", "RAW_STRING", "LINE_VALUE", 
+	"ID", "ExponentPart", "EscapeSequence", "HexDigits", "HexDigit", "Digits", 
 	"LetterOrDigit", "Letter",
 }
-
 type ApiParserLexer struct {
 	*antlr.BaseLexer
 	channelNames []string
-	modeNames    []string
+	modeNames []string
 	// TODO: EOF string
 }
 
@@ -204,29 +207,34 @@ func NewApiParserLexer(input antlr.CharStream) *ApiParserLexer {
 
 // ApiParserLexer tokens.
 const (
-	ApiParserLexerT__0         = 1
-	ApiParserLexerT__1         = 2
-	ApiParserLexerT__2         = 3
-	ApiParserLexerT__3         = 4
-	ApiParserLexerT__4         = 5
-	ApiParserLexerT__5         = 6
-	ApiParserLexerT__6         = 7
-	ApiParserLexerT__7         = 8
-	ApiParserLexerT__8         = 9
-	ApiParserLexerT__9         = 10
-	ApiParserLexerT__10        = 11
-	ApiParserLexerT__11        = 12
-	ApiParserLexerATDOC        = 13
-	ApiParserLexerATHANDLER    = 14
-	ApiParserLexerINTERFACE    = 15
-	ApiParserLexerATSERVER     = 16
-	ApiParserLexerWS           = 17
-	ApiParserLexerCOMMENT      = 18
-	ApiParserLexerLINE_COMMENT = 19
-	ApiParserLexerSTRING       = 20
-	ApiParserLexerRAW_STRING   = 21
-	ApiParserLexerLINE_VALUE   = 22
-	ApiParserLexerID           = 23
+	ApiParserLexerT__0 = 1
+	ApiParserLexerT__1 = 2
+	ApiParserLexerT__2 = 3
+	ApiParserLexerT__3 = 4
+	ApiParserLexerT__4 = 5
+	ApiParserLexerT__5 = 6
+	ApiParserLexerT__6 = 7
+	ApiParserLexerT__7 = 8
+	ApiParserLexerT__8 = 9
+	ApiParserLexerT__9 = 10
+	ApiParserLexerT__10 = 11
+	ApiParserLexerT__11 = 12
+	ApiParserLexerT__12 = 13
+	ApiParserLexerATDOC = 14
+	ApiParserLexerATHANDLER = 15
+	ApiParserLexerINTERFACE = 16
+	ApiParserLexerATSERVER = 17
+	ApiParserLexerWS = 18
+	ApiParserLexerCOMMENT = 19
+	ApiParserLexerLINE_COMMENT = 20
+	ApiParserLexerSTRING = 21
+	ApiParserLexerRAW_STRING = 22
+	ApiParserLexerLINE_VALUE = 23
+	ApiParserLexerID = 24
 )
 
-const COMEMNTS = 88
+
+    const COMEMNTS = 88
+
+
+
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_parser.go b/tools/goctl/api/parser/g4/gen/api/apiparser_parser.go
index ac37580a..f82f965d 100755
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_parser.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_parser.go
@@ -12,180 +12,180 @@ var _ = fmt.Printf
 var _ = reflect.Copy
 var _ = strconv.Itoa
 
+
 var parserATN = []uint16{
-	3, 24715, 42794, 33075, 47597, 16764, 15335, 30598, 22884, 3, 25, 351,
-	4, 2, 9, 2, 4, 3, 9, 3, 4, 4, 9, 4, 4, 5, 9, 5, 4, 6, 9, 6, 4, 7, 9, 7,
-	4, 8, 9, 8, 4, 9, 9, 9, 4, 10, 9, 10, 4, 11, 9, 11, 4, 12, 9, 12, 4, 13,
-	9, 13, 4, 14, 9, 14, 4, 15, 9, 15, 4, 16, 9, 16, 4, 17, 9, 17, 4, 18, 9,
-	18, 4, 19, 9, 19, 4, 20, 9, 20, 4, 21, 9, 21, 4, 22, 9, 22, 4, 23, 9, 23,
-	4, 24, 9, 24, 4, 25, 9, 25, 4, 26, 9, 26, 4, 27, 9, 27, 4, 28, 9, 28, 4,
-	29, 9, 29, 4, 30, 9, 30, 4, 31, 9, 31, 4, 32, 9, 32, 4, 33, 9, 33, 4, 34,
-	9, 34, 4, 35, 9, 35, 4, 36, 9, 36, 4, 37, 9, 37, 4, 38, 9, 38, 3, 2, 7,
-	2, 78, 10, 2, 12, 2, 14, 2, 81, 11, 2, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 5,
-	3, 88, 10, 3, 3, 4, 3, 4, 3, 4, 3, 4, 3, 4, 3, 4, 3, 5, 3, 5, 5, 5, 98,
-	10, 5, 3, 6, 3, 6, 3, 6, 3, 6, 3, 7, 3, 7, 3, 7, 3, 7, 6, 7, 108, 10, 7,
-	13, 7, 14, 7, 109, 3, 7, 3, 7, 3, 8, 3, 8, 3, 9, 3, 9, 3, 9, 3, 10, 3,
-	10, 3, 10, 3, 10, 6, 10, 123, 10, 10, 13, 10, 14, 10, 124, 3, 10, 3, 10,
-	3, 11, 3, 11, 5, 11, 131, 10, 11, 3, 12, 3, 12, 3, 12, 3, 12, 3, 13, 3,
-	13, 3, 13, 3, 13, 7, 13, 141, 10, 13, 12, 13, 14, 13, 144, 11, 13, 3, 13,
-	3, 13, 3, 14, 3, 14, 5, 14, 150, 10, 14, 3, 15, 3, 15, 5, 15, 154, 10,
-	15, 3, 16, 3, 16, 3, 16, 5, 16, 159, 10, 16, 3, 16, 3, 16, 7, 16, 163,
-	10, 16, 12, 16, 14, 16, 166, 11, 16, 3, 16, 3, 16, 3, 17, 3, 17, 3, 17,
-	5, 17, 173, 10, 17, 3, 17, 3, 17, 3, 18, 3, 18, 3, 18, 5, 18, 180, 10,
-	18, 3, 18, 3, 18, 7, 18, 184, 10, 18, 12, 18, 14, 18, 187, 11, 18, 3, 18,
-	3, 18, 3, 19, 3, 19, 3, 19, 5, 19, 194, 10, 19, 3, 19, 3, 19, 3, 20, 3,
-	20, 3, 20, 5, 20, 201, 10, 20, 3, 21, 3, 21, 3, 21, 3, 21, 5, 21, 207,
-	10, 21, 3, 22, 5, 22, 210, 10, 22, 3, 22, 3, 22, 3, 23, 3, 23, 3, 23, 3,
-	23, 3, 23, 3, 23, 3, 23, 3, 23, 5, 23, 222, 10, 23, 3, 24, 3, 24, 3, 24,
-	3, 24, 3, 25, 3, 25, 3, 25, 3, 25, 3, 25, 3, 25, 3, 25, 3, 25, 3, 26, 3,
-	26, 3, 26, 3, 26, 3, 27, 5, 27, 241, 10, 27, 3, 27, 3, 27, 3, 28, 3, 28,
-	3, 28, 6, 28, 248, 10, 28, 13, 28, 14, 28, 249, 3, 28, 3, 28, 3, 29, 3,
-	29, 3, 29, 3, 29, 3, 29, 7, 29, 259, 10, 29, 12, 29, 14, 29, 262, 11, 29,
-	3, 29, 3, 29, 3, 30, 5, 30, 267, 10, 30, 3, 30, 3, 30, 5, 30, 271, 10,
-	30, 3, 30, 3, 30, 3, 31, 3, 31, 5, 31, 277, 10, 31, 3, 31, 6, 31, 280,
-	10, 31, 13, 31, 14, 31, 281, 3, 31, 5, 31, 285, 10, 31, 3, 31, 5, 31, 288,
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+	109, 107, 3, 2, 2, 2, 109, 110, 3, 2, 2, 2, 110, 111, 3, 2, 2, 2, 111, 
+	112, 7, 5, 2, 2, 112, 13, 3, 2, 2, 2, 113, 114, 5, 16, 9, 2, 114, 15, 3, 
+	2, 2, 2, 115, 116, 8, 9, 1, 2, 116, 117, 7, 23, 2, 2, 117, 17, 3, 2, 2, 
+	2, 118, 119, 8, 10, 1, 2, 119, 120, 7, 26, 2, 2, 120, 122, 7, 4, 2, 2, 
+	121, 123, 5, 70, 36, 2, 122, 121, 3, 2, 2, 2, 123, 124, 3, 2, 2, 2, 124, 
+	122, 3, 2, 2, 2, 124, 125, 3, 2, 2, 2, 125, 126, 3, 2, 2, 2, 126, 127, 
+	7, 5, 2, 2, 127, 19, 3, 2, 2, 2, 128, 131, 5, 22, 12, 2, 129, 131, 5, 24, 
+	13, 2, 130, 128, 3, 2, 2, 2, 130, 129, 3, 2, 2, 2, 131, 21, 3, 2, 2, 2, 
+	132, 133, 8, 12, 1, 2, 133, 134, 7, 26, 2, 2, 134, 135, 5, 26, 14, 2, 135, 
+	23, 3, 2, 2, 2, 136, 137, 8, 13, 1, 2, 137, 138, 7, 26, 2, 2, 138, 142, 
+	7, 4, 2, 2, 139, 141, 5, 28, 15, 2, 140, 139, 3, 2, 2, 2, 141, 144, 3, 
+	2, 2, 2, 142, 140, 3, 2, 2, 2, 142, 143, 3, 2, 2, 2, 143, 145, 3, 2, 2, 
+	2, 144, 142, 3, 2, 2, 2, 145, 146, 7, 5, 2, 2, 146, 25, 3, 2, 2, 2, 147, 
+	150, 5, 30, 16, 2, 148, 150, 5, 32, 17, 2, 149, 147, 3, 2, 2, 2, 149, 148, 
+	3, 2, 2, 2, 150, 27, 3, 2, 2, 2, 151, 154, 5, 34, 18, 2, 152, 154, 5, 36, 
+	19, 2, 153, 151, 3, 2, 2, 2, 153, 152, 3, 2, 2, 2, 154, 29, 3, 2, 2, 2, 
+	155, 156, 8, 16, 1, 2, 156, 158, 7, 26, 2, 2, 157, 159, 7, 26, 2, 2, 158, 
+	157, 3, 2, 2, 2, 158, 159, 3, 2, 2, 2, 159, 160, 3, 2, 2, 2, 160, 164, 
+	7, 6, 2, 2, 161, 163, 5, 38, 20, 2, 162, 161, 3, 2, 2, 2, 163, 166, 3, 
+	2, 2, 2, 164, 162, 3, 2, 2, 2, 164, 165, 3, 2, 2, 2, 165, 167, 3, 2, 2, 
+	2, 166, 164, 3, 2, 2, 2, 167, 168, 7, 7, 2, 2, 168, 31, 3, 2, 2, 2, 169, 
+	170, 8, 17, 1, 2, 170, 172, 7, 26, 2, 2, 171, 173, 7, 3, 2, 2, 172, 171, 
+	3, 2, 2, 2, 172, 173, 3, 2, 2, 2, 173, 174, 3, 2, 2, 2, 174, 175, 5, 44, 
+	23, 2, 175, 33, 3, 2, 2, 2, 176, 177, 8, 18, 1, 2, 177, 179, 7, 26, 2, 
+	2, 178, 180, 7, 26, 2, 2, 179, 178, 3, 2, 2, 2, 179, 180, 3, 2, 2, 2, 180, 
+	181, 3, 2, 2, 2, 181, 185, 7, 6, 2, 2, 182, 184, 5, 38, 20, 2, 183, 182, 
+	3, 2, 2, 2, 184, 187, 3, 2, 2, 2, 185, 183, 3, 2, 2, 2, 185, 186, 3, 2, 
+	2, 2, 186, 188, 3, 2, 2, 2, 187, 185, 3, 2, 2, 2, 188, 189, 7, 7, 2, 2, 
+	189, 35, 3, 2, 2, 2, 190, 191, 8, 19, 1, 2, 191, 193, 7, 26, 2, 2, 192, 
+	194, 7, 3, 2, 2, 193, 192, 3, 2, 2, 2, 193, 194, 3, 2, 2, 2, 194, 195, 
+	3, 2, 2, 2, 195, 196, 5, 44, 23, 2, 196, 37, 3, 2, 2, 2, 197, 198, 6, 20, 
+	2, 2, 198, 201, 5, 40, 21, 2, 199, 201, 5, 42, 22, 2, 200, 197, 3, 2, 2, 
+	2, 200, 199, 3, 2, 2, 2, 201, 39, 3, 2, 2, 2, 202, 203, 8, 21, 1, 2, 203, 
+	204, 7, 26, 2, 2, 204, 206, 5, 44, 23, 2, 205, 207, 7, 24, 2, 2, 206, 205, 
+	3, 2, 2, 2, 206, 207, 3, 2, 2, 2, 207, 41, 3, 2, 2, 2, 208, 210, 7, 8, 
+	2, 2, 209, 208, 3, 2, 2, 2, 209, 210, 3, 2, 2, 2, 210, 211, 3, 2, 2, 2, 
+	211, 212, 7, 26, 2, 2, 212, 43, 3, 2, 2, 2, 213, 214, 8, 23, 1, 2, 214, 
+	222, 7, 26, 2, 2, 215, 222, 5, 48, 25, 2, 216, 222, 5, 50, 26, 2, 217, 
+	222, 7, 18, 2, 2, 218, 222, 7, 9, 2, 2, 219, 222, 5, 46, 24, 2, 220, 222, 
+	5, 30, 16, 2, 221, 213, 3, 2, 2, 2, 221, 215, 3, 2, 2, 2, 221, 216, 3, 
+	2, 2, 2, 221, 217, 3, 2, 2, 2, 221, 218, 3, 2, 2, 2, 221, 219, 3, 2, 2, 
+	2, 221, 220, 3, 2, 2, 2, 222, 45, 3, 2, 2, 2, 223, 224, 7, 8, 2, 2, 224, 
+	225, 8, 24, 1, 2, 225, 226, 7, 26, 2, 2, 226, 47, 3, 2, 2, 2, 227, 228, 
+	8, 25, 1, 2, 228, 229, 7, 26, 2, 2, 229, 230, 7, 10, 2, 2, 230, 231, 8, 
+	25, 1, 2, 231, 232, 7, 26, 2, 2, 232, 233, 7, 11, 2, 2, 233, 234, 5, 44, 
+	23, 2, 234, 49, 3, 2, 2, 2, 235, 236, 7, 10, 2, 2, 236, 237, 7, 11, 2, 
+	2, 237, 238, 5, 44, 23, 2, 238, 51, 3, 2, 2, 2, 239, 241, 5, 54, 28, 2, 
+	240, 239, 3, 2, 2, 2, 240, 241, 3, 2, 2, 2, 241, 242, 3, 2, 2, 2, 242, 
+	243, 5, 56, 29, 2, 243, 53, 3, 2, 2, 2, 244, 245, 7, 19, 2, 2, 245, 247, 
+	7, 4, 2, 2, 246, 248, 5, 70, 36, 2, 247, 246, 3, 2, 2, 2, 248, 249, 3, 
+	2, 2, 2, 249, 247, 3, 2, 2, 2, 249, 250, 3, 2, 2, 2, 250, 251, 3, 2, 2, 
+	2, 251, 252, 7, 5, 2, 2, 252, 55, 3, 2, 2, 2, 253, 254, 8, 29, 1, 2, 254, 
+	255, 7, 26, 2, 2, 255, 256, 5, 72, 37, 2, 256, 260, 7, 6, 2, 2, 257, 259, 
+	5, 58, 30, 2, 258, 257, 3, 2, 2, 2, 259, 262, 3, 2, 2, 2, 260, 258, 3, 
+	2, 2, 2, 260, 261, 3, 2, 2, 2, 261, 263, 3, 2, 2, 2, 262, 260, 3, 2, 2, 
+	2, 263, 264, 7, 7, 2, 2, 264, 57, 3, 2, 2, 2, 265, 267, 5, 60, 31, 2, 266, 
+	265, 3, 2, 2, 2, 266, 267, 3, 2, 2, 2, 267, 270, 3, 2, 2, 2, 268, 271, 
+	5, 54, 28, 2, 269, 271, 5, 62, 32, 2, 270, 268, 3, 2, 2, 2, 270, 269, 3, 
+	2, 2, 2, 271, 272, 3, 2, 2, 2, 272, 273, 5, 64, 33, 2, 273, 59, 3, 2, 2, 
+	2, 274, 276, 7, 16, 2, 2, 275, 277, 7, 4, 2, 2, 276, 275, 3, 2, 2, 2, 276, 
+	277, 3, 2, 2, 2, 277, 284, 3, 2, 2, 2, 278, 280, 5, 70, 36, 2, 279, 278, 
+	3, 2, 2, 2, 280, 281, 3, 2, 2, 2, 281, 279, 3, 2, 2, 2, 281, 282, 3, 2, 
+	2, 2, 282, 285, 3, 2, 2, 2, 283, 285, 7, 23, 2, 2, 284, 279, 3, 2, 2, 2, 
+	284, 283, 3, 2, 2, 2, 285, 287, 3, 2, 2, 2, 286, 288, 7, 5, 2, 2, 287, 
+	286, 3, 2, 2, 2, 287, 288, 3, 2, 2, 2, 288, 61, 3, 2, 2, 2, 289, 290, 7, 
+	17, 2, 2, 290, 291, 7, 26, 2, 2, 291, 63, 3, 2, 2, 2, 292, 293, 8, 33, 
+	1, 2, 293, 294, 7, 26, 2, 2, 294, 296, 5, 74, 38, 2, 295, 297, 5, 66, 34, 
+	2, 296, 295, 3, 2, 2, 2, 296, 297, 3, 2, 2, 2, 297, 299, 3, 2, 2, 2, 298, 
+	300, 5, 68, 35, 2, 299, 298, 3, 2, 2, 2, 299, 300, 3, 2, 2, 2, 300, 65, 
+	3, 2, 2, 2, 301, 303, 7, 4, 2, 2, 302, 304, 7, 26, 2, 2, 303, 302, 3, 2, 
+	2, 2, 303, 304, 3, 2, 2, 2, 304, 305, 3, 2, 2, 2, 305, 306, 7, 5, 2, 2, 
+	306, 67, 3, 2, 2, 2, 307, 308, 7, 12, 2, 2, 308, 310, 7, 4, 2, 2, 309, 
+	311, 5, 44, 23, 2, 310, 309, 3, 2, 2, 2, 310, 311, 3, 2, 2, 2, 311, 312, 
+	3, 2, 2, 2, 312, 313, 7, 5, 2, 2, 313, 69, 3, 2, 2, 2, 314, 315, 7, 26, 
+	2, 2, 315, 316, 8, 36, 1, 2, 316, 317, 7, 25, 2, 2, 317, 71, 3, 2, 2, 2, 
+	318, 320, 7, 26, 2, 2, 319, 321, 7, 13, 2, 2, 320, 319, 3, 2, 2, 2, 320, 
+	321, 3, 2, 2, 2, 321, 323, 3, 2, 2, 2, 322, 318, 3, 2, 2, 2, 323, 324, 
+	3, 2, 2, 2, 324, 322, 3, 2, 2, 2, 324, 325, 3, 2, 2, 2, 325, 73, 3, 2, 
+	2, 2, 326, 327, 7, 14, 2, 2, 327, 332, 7, 26, 2, 2, 328, 329, 7, 13, 2, 
+	2, 329, 331, 7, 26, 2, 2, 330, 328, 3, 2, 2, 2, 331, 334, 3, 2, 2, 2, 332, 
+	330, 3, 2, 2, 2, 332, 333, 3, 2, 2, 2, 333, 342, 3, 2, 2, 2, 334, 332, 
+	3, 2, 2, 2, 335, 336, 7, 15, 2, 2, 336, 339, 7, 26, 2, 2, 337, 338, 7, 
+	13, 2, 2, 338, 340, 7, 26, 2, 2, 339, 337, 3, 2, 2, 2, 339, 340, 3, 2, 
+	2, 2, 340, 342, 3, 2, 2, 2, 341, 326, 3, 2, 2, 2, 341, 335, 3, 2, 2, 2, 
+	342, 343, 3, 2, 2, 2, 343, 341, 3, 2, 2, 2, 343, 344, 3, 2, 2, 2, 344, 
+	347, 3, 2, 2, 2, 345, 347, 7, 14, 2, 2, 346, 341, 3, 2, 2, 2, 346, 345, 
+	3, 2, 2, 2, 347, 75, 3, 2, 2, 2, 41, 79, 87, 97, 109, 124, 130, 142, 149, 
+	153, 158, 164, 172, 179, 185, 193, 200, 206, 209, 221, 240, 249, 260, 266, 
+	270, 276, 281, 284, 287, 296, 299, 303, 310, 320, 324, 332, 339, 341, 343, 
+	346,
 }
 var literalNames = []string{
-	"", "'='", "'('", "')'", "'{'", "'}'", "'*'", "'time.Time'", "'['", "']'",
-	"'-'", "'/'", "'/:'", "'@doc'", "'@handler'", "'interface{}'", "'@server'",
+	"", "'='", "'('", "')'", "'{'", "'}'", "'*'", "'time.Time'", "'['", "']'", 
+	"'returns'", "'-'", "'/'", "'/:'", "'@doc'", "'@handler'", "'interface{}'", 
+	"'@server'",
 }
 var symbolicNames = []string{
-	"", "", "", "", "", "", "", "", "", "", "", "", "", "ATDOC", "ATHANDLER",
-	"INTERFACE", "ATSERVER", "WS", "COMMENT", "LINE_COMMENT", "STRING", "RAW_STRING",
+	"", "", "", "", "", "", "", "", "", "", "", "", "", "", "ATDOC", "ATHANDLER", 
+	"INTERFACE", "ATSERVER", "WS", "COMMENT", "LINE_COMMENT", "STRING", "RAW_STRING", 
 	"LINE_VALUE", "ID",
 }
 
 var ruleNames = []string{
-	"api", "spec", "syntaxLit", "importSpec", "importLit", "importBlock", "importBlockValue",
-	"importValue", "infoSpec", "typeSpec", "typeLit", "typeBlock", "typeLitBody",
-	"typeBlockBody", "typeStruct", "typeAlias", "typeBlockStruct", "typeBlockAlias",
-	"field", "normalField", "anonymousFiled", "dataType", "pointerType", "mapType",
-	"arrayType", "serviceSpec", "atServer", "serviceApi", "serviceRoute", "atDoc",
+	"api", "spec", "syntaxLit", "importSpec", "importLit", "importBlock", "importBlockValue", 
+	"importValue", "infoSpec", "typeSpec", "typeLit", "typeBlock", "typeLitBody", 
+	"typeBlockBody", "typeStruct", "typeAlias", "typeBlockStruct", "typeBlockAlias", 
+	"field", "normalField", "anonymousFiled", "dataType", "pointerType", "mapType", 
+	"arrayType", "serviceSpec", "atServer", "serviceApi", "serviceRoute", "atDoc", 
 	"atHandler", "route", "body", "replybody", "kvLit", "serviceName", "path",
 }
-
 type ApiParserParser struct {
 	*antlr.BaseParser
 }
@@ -215,73 +215,75 @@ func NewApiParserParser(input antlr.TokenStream) *ApiParserParser {
 	return this
 }
 
+
 // ApiParserParser tokens.
 const (
-	ApiParserParserEOF          = antlr.TokenEOF
-	ApiParserParserT__0         = 1
-	ApiParserParserT__1         = 2
-	ApiParserParserT__2         = 3
-	ApiParserParserT__3         = 4
-	ApiParserParserT__4         = 5
-	ApiParserParserT__5         = 6
-	ApiParserParserT__6         = 7
-	ApiParserParserT__7         = 8
-	ApiParserParserT__8         = 9
-	ApiParserParserT__9         = 10
-	ApiParserParserT__10        = 11
-	ApiParserParserT__11        = 12
-	ApiParserParserATDOC        = 13
-	ApiParserParserATHANDLER    = 14
-	ApiParserParserINTERFACE    = 15
-	ApiParserParserATSERVER     = 16
-	ApiParserParserWS           = 17
-	ApiParserParserCOMMENT      = 18
-	ApiParserParserLINE_COMMENT = 19
-	ApiParserParserSTRING       = 20
-	ApiParserParserRAW_STRING   = 21
-	ApiParserParserLINE_VALUE   = 22
-	ApiParserParserID           = 23
+	ApiParserParserEOF = antlr.TokenEOF
+	ApiParserParserT__0 = 1
+	ApiParserParserT__1 = 2
+	ApiParserParserT__2 = 3
+	ApiParserParserT__3 = 4
+	ApiParserParserT__4 = 5
+	ApiParserParserT__5 = 6
+	ApiParserParserT__6 = 7
+	ApiParserParserT__7 = 8
+	ApiParserParserT__8 = 9
+	ApiParserParserT__9 = 10
+	ApiParserParserT__10 = 11
+	ApiParserParserT__11 = 12
+	ApiParserParserT__12 = 13
+	ApiParserParserATDOC = 14
+	ApiParserParserATHANDLER = 15
+	ApiParserParserINTERFACE = 16
+	ApiParserParserATSERVER = 17
+	ApiParserParserWS = 18
+	ApiParserParserCOMMENT = 19
+	ApiParserParserLINE_COMMENT = 20
+	ApiParserParserSTRING = 21
+	ApiParserParserRAW_STRING = 22
+	ApiParserParserLINE_VALUE = 23
+	ApiParserParserID = 24
 )
 
 // ApiParserParser rules.
 const (
-	ApiParserParserRULE_api              = 0
-	ApiParserParserRULE_spec             = 1
-	ApiParserParserRULE_syntaxLit        = 2
-	ApiParserParserRULE_importSpec       = 3
-	ApiParserParserRULE_importLit        = 4
-	ApiParserParserRULE_importBlock      = 5
+	ApiParserParserRULE_api = 0
+	ApiParserParserRULE_spec = 1
+	ApiParserParserRULE_syntaxLit = 2
+	ApiParserParserRULE_importSpec = 3
+	ApiParserParserRULE_importLit = 4
+	ApiParserParserRULE_importBlock = 5
 	ApiParserParserRULE_importBlockValue = 6
-	ApiParserParserRULE_importValue      = 7
-	ApiParserParserRULE_infoSpec         = 8
-	ApiParserParserRULE_typeSpec         = 9
-	ApiParserParserRULE_typeLit          = 10
-	ApiParserParserRULE_typeBlock        = 11
-	ApiParserParserRULE_typeLitBody      = 12
-	ApiParserParserRULE_typeBlockBody    = 13
-	ApiParserParserRULE_typeStruct       = 14
-	ApiParserParserRULE_typeAlias        = 15
-	ApiParserParserRULE_typeBlockStruct  = 16
-	ApiParserParserRULE_typeBlockAlias   = 17
-	ApiParserParserRULE_field            = 18
-	ApiParserParserRULE_normalField      = 19
-	ApiParserParserRULE_anonymousFiled   = 20
-	ApiParserParserRULE_dataType         = 21
-	ApiParserParserRULE_pointerType      = 22
-	ApiParserParserRULE_mapType          = 23
-	ApiParserParserRULE_arrayType        = 24
-	ApiParserParserRULE_serviceSpec      = 25
-	ApiParserParserRULE_atServer         = 26
-	ApiParserParserRULE_serviceApi       = 27
-	ApiParserParserRULE_serviceRoute     = 28
-	ApiParserParserRULE_atDoc            = 29
-	ApiParserParserRULE_atHandler        = 30
-	ApiParserParserRULE_route            = 31
-	ApiParserParserRULE_body             = 32
-	ApiParserParserRULE_replybody        = 33
-	ApiParserParserRULE_kvLit            = 34
-	ApiParserParserRULE_serviceName      = 35
-	ApiParserParserRULE_path             = 36
+	ApiParserParserRULE_importValue = 7
+	ApiParserParserRULE_infoSpec = 8
+	ApiParserParserRULE_typeSpec = 9
+	ApiParserParserRULE_typeLit = 10
+	ApiParserParserRULE_typeBlock = 11
+	ApiParserParserRULE_typeLitBody = 12
+	ApiParserParserRULE_typeBlockBody = 13
+	ApiParserParserRULE_typeStruct = 14
+	ApiParserParserRULE_typeAlias = 15
+	ApiParserParserRULE_typeBlockStruct = 16
+	ApiParserParserRULE_typeBlockAlias = 17
+	ApiParserParserRULE_field = 18
+	ApiParserParserRULE_normalField = 19
+	ApiParserParserRULE_anonymousFiled = 20
+	ApiParserParserRULE_dataType = 21
+	ApiParserParserRULE_pointerType = 22
+	ApiParserParserRULE_mapType = 23
+	ApiParserParserRULE_arrayType = 24
+	ApiParserParserRULE_serviceSpec = 25
+	ApiParserParserRULE_atServer = 26
+	ApiParserParserRULE_serviceApi = 27
+	ApiParserParserRULE_serviceRoute = 28
+	ApiParserParserRULE_atDoc = 29
+	ApiParserParserRULE_atHandler = 30
+	ApiParserParserRULE_route = 31
+	ApiParserParserRULE_body = 32
+	ApiParserParserRULE_replybody = 33
+	ApiParserParserRULE_kvLit = 34
+	ApiParserParserRULE_serviceName = 35
+	ApiParserParserRULE_path = 36
 )
 
 // IApiContext is an interface to support dynamic dispatch.
@@ -353,6 +355,7 @@ func (s *ApiContext) ToStringTree(ruleNames []string, recog antlr.Recognizer) st
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ApiContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -363,11 +366,15 @@ func (s *ApiContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) Api() (localctx IApiContext) {
 	localctx = NewApiContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 0, ApiParserParserRULE_api)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -389,20 +396,25 @@ func (p *ApiParserParser) Api() (localctx IApiContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	for _la == ApiParserParserATSERVER || _la == ApiParserParserID {
 		{
 			p.SetState(74)
 			p.Spec()
 		}
 
+
 		p.SetState(79)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 	}
 
+
+
 	return localctx
 }
 
+
 // ISpecContext is an interface to support dynamic dispatch.
 type ISpecContext interface {
 	antlr.ParserRuleContext
@@ -499,6 +511,7 @@ func (s *SpecContext) ToStringTree(ruleNames []string, recog antlr.Recognizer) s
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *SpecContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -509,6 +522,9 @@ func (s *SpecContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) Spec() (localctx ISpecContext) {
 	localctx = NewSpecContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 2, ApiParserParserRULE_spec)
@@ -539,6 +555,7 @@ func (p *ApiParserParser) Spec() (localctx ISpecContext) {
 			p.SyntaxLit()
 		}
 
+
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
@@ -546,6 +563,7 @@ func (p *ApiParserParser) Spec() (localctx ISpecContext) {
 			p.ImportSpec()
 		}
 
+
 	case 3:
 		p.EnterOuterAlt(localctx, 3)
 		{
@@ -553,6 +571,7 @@ func (p *ApiParserParser) Spec() (localctx ISpecContext) {
 			p.InfoSpec()
 		}
 
+
 	case 4:
 		p.EnterOuterAlt(localctx, 4)
 		{
@@ -560,6 +579,7 @@ func (p *ApiParserParser) Spec() (localctx ISpecContext) {
 			p.TypeSpec()
 		}
 
+
 	case 5:
 		p.EnterOuterAlt(localctx, 5)
 		{
@@ -569,9 +589,11 @@ func (p *ApiParserParser) Spec() (localctx ISpecContext) {
 
 	}
 
+
 	return localctx
 }
 
+
 // ISyntaxLitContext is an interface to support dynamic dispatch.
 type ISyntaxLitContext interface {
 	antlr.ParserRuleContext
@@ -580,22 +602,24 @@ type ISyntaxLitContext interface {
 	GetParser() antlr.Parser
 
 	// GetSyntaxToken returns the syntaxToken token.
-	GetSyntaxToken() antlr.Token
+	GetSyntaxToken() antlr.Token 
 
 	// GetAssign returns the assign token.
-	GetAssign() antlr.Token
+	GetAssign() antlr.Token 
 
 	// GetVersion returns the version token.
-	GetVersion() antlr.Token
+	GetVersion() antlr.Token 
+
 
 	// SetSyntaxToken sets the syntaxToken token.
-	SetSyntaxToken(antlr.Token)
+	SetSyntaxToken(antlr.Token) 
 
 	// SetAssign sets the assign token.
-	SetAssign(antlr.Token)
+	SetAssign(antlr.Token) 
 
 	// SetVersion sets the version token.
-	SetVersion(antlr.Token)
+	SetVersion(antlr.Token) 
+
 
 	// IsSyntaxLitContext differentiates from other interfaces.
 	IsSyntaxLitContext()
@@ -603,10 +627,10 @@ type ISyntaxLitContext interface {
 
 type SyntaxLitContext struct {
 	*antlr.BaseParserRuleContext
-	parser      antlr.Parser
+	parser antlr.Parser
 	syntaxToken antlr.Token
-	assign      antlr.Token
-	version     antlr.Token
+	assign antlr.Token
+	version antlr.Token
 }
 
 func NewEmptySyntaxLitContext() *SyntaxLitContext {
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_parser1.go b/tools/goctl/api/parser/g4/gen/api/apiparser_parser1.go
index 33795b86..d17a5984 100755
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_parser1.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_parser1.go
@@ -18,12 +18,14 @@ func (s *SyntaxLitContext) GetAssign() antlr.Token { return s.assign }
 
 func (s *SyntaxLitContext) GetVersion() antlr.Token { return s.version }
 
+
 func (s *SyntaxLitContext) SetSyntaxToken(v antlr.Token) { s.syntaxToken = v }
 
 func (s *SyntaxLitContext) SetAssign(v antlr.Token) { s.assign = v }
 
 func (s *SyntaxLitContext) SetVersion(v antlr.Token) { s.version = v }
 
+
 func (s *SyntaxLitContext) ID() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserID, 0)
 }
@@ -40,6 +42,7 @@ func (s *SyntaxLitContext) ToStringTree(ruleNames []string, recog antlr.Recogniz
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *SyntaxLitContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -50,6 +53,9 @@ func (s *SyntaxLitContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) SyntaxLit() (localctx ISyntaxLitContext) {
 	localctx = NewSyntaxLitContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 4, ApiParserParserRULE_syntaxLit)
@@ -71,7 +77,7 @@ func (p *ApiParserParser) SyntaxLit() (localctx ISyntaxLitContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	match(p, "syntax")
+	match(p,"syntax")
 	{
 		p.SetState(88)
 
@@ -95,9 +101,12 @@ func (p *ApiParserParser) SyntaxLit() (localctx ISyntaxLitContext) {
 		localctx.(*SyntaxLitContext).version = _m
 	}
 
+
+
 	return localctx
 }
 
+
 // IImportSpecContext is an interface to support dynamic dispatch.
 type IImportSpecContext interface {
 	antlr.ParserRuleContext
@@ -164,6 +173,7 @@ func (s *ImportSpecContext) ToStringTree(ruleNames []string, recog antlr.Recogni
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ImportSpecContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -174,6 +184,9 @@ func (s *ImportSpecContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) ImportSpec() (localctx IImportSpecContext) {
 	localctx = NewImportSpecContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 6, ApiParserParserRULE_importSpec)
@@ -204,6 +217,7 @@ func (p *ApiParserParser) ImportSpec() (localctx IImportSpecContext) {
 			p.ImportLit()
 		}
 
+
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
@@ -213,9 +227,11 @@ func (p *ApiParserParser) ImportSpec() (localctx IImportSpecContext) {
 
 	}
 
+
 	return localctx
 }
 
+
 // IImportLitContext is an interface to support dynamic dispatch.
 type IImportLitContext interface {
 	antlr.ParserRuleContext
@@ -226,16 +242,18 @@ type IImportLitContext interface {
 	// GetImportToken returns the importToken token.
 	GetImportToken() antlr.Token
 
+
 	// SetImportToken sets the importToken token.
 	SetImportToken(antlr.Token)
 
+
 	// IsImportLitContext differentiates from other interfaces.
 	IsImportLitContext()
 }
 
 type ImportLitContext struct {
 	*antlr.BaseParserRuleContext
-	parser      antlr.Parser
+	parser antlr.Parser
 	importToken antlr.Token
 }
 
@@ -263,8 +281,10 @@ func (s *ImportLitContext) GetParser() antlr.Parser { return s.parser }
 
 func (s *ImportLitContext) GetImportToken() antlr.Token { return s.importToken }
 
+
 func (s *ImportLitContext) SetImportToken(v antlr.Token) { s.importToken = v }
 
+
 func (s *ImportLitContext) ImportValue() IImportValueContext {
 	var t = s.GetTypedRuleContext(reflect.TypeOf((*IImportValueContext)(nil)).Elem(), 0)
 
@@ -287,6 +307,7 @@ func (s *ImportLitContext) ToStringTree(ruleNames []string, recog antlr.Recogniz
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ImportLitContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -297,6 +318,9 @@ func (s *ImportLitContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) ImportLit() (localctx IImportLitContext) {
 	localctx = NewImportLitContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 8, ApiParserParserRULE_importLit)
@@ -318,7 +342,7 @@ func (p *ApiParserParser) ImportLit() (localctx IImportLitContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	match(p, "import")
+	match(p,"import")
 	{
 		p.SetState(98)
 
@@ -331,9 +355,12 @@ func (p *ApiParserParser) ImportLit() (localctx IImportLitContext) {
 		p.ImportValue()
 	}
 
+
+
 	return localctx
 }
 
+
 // IImportBlockContext is an interface to support dynamic dispatch.
 type IImportBlockContext interface {
 	antlr.ParserRuleContext
@@ -344,16 +371,18 @@ type IImportBlockContext interface {
 	// GetImportToken returns the importToken token.
 	GetImportToken() antlr.Token
 
+
 	// SetImportToken sets the importToken token.
 	SetImportToken(antlr.Token)
 
+
 	// IsImportBlockContext differentiates from other interfaces.
 	IsImportBlockContext()
 }
 
 type ImportBlockContext struct {
 	*antlr.BaseParserRuleContext
-	parser      antlr.Parser
+	parser antlr.Parser
 	importToken antlr.Token
 }
 
@@ -381,8 +410,10 @@ func (s *ImportBlockContext) GetParser() antlr.Parser { return s.parser }
 
 func (s *ImportBlockContext) GetImportToken() antlr.Token { return s.importToken }
 
+
 func (s *ImportBlockContext) SetImportToken(v antlr.Token) { s.importToken = v }
 
+
 func (s *ImportBlockContext) ID() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserID, 0)
 }
@@ -418,6 +449,7 @@ func (s *ImportBlockContext) ToStringTree(ruleNames []string, recog antlr.Recogn
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ImportBlockContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -428,11 +460,15 @@ func (s *ImportBlockContext) Accept(visitor antlr.ParseTreeVisitor) interface{}
 	}
 }
 
+
+
+
 func (p *ApiParserParser) ImportBlock() (localctx IImportBlockContext) {
 	localctx = NewImportBlockContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 10, ApiParserParserRULE_importBlock)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -450,7 +486,7 @@ func (p *ApiParserParser) ImportBlock() (localctx IImportBlockContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	match(p, "import")
+	match(p,"import")
 	{
 		p.SetState(102)
 
@@ -471,6 +507,7 @@ func (p *ApiParserParser) ImportBlock() (localctx IImportBlockContext) {
 			p.ImportBlockValue()
 		}
 
+
 		p.SetState(107)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
@@ -480,9 +517,12 @@ func (p *ApiParserParser) ImportBlock() (localctx IImportBlockContext) {
 		p.Match(ApiParserParserT__2)
 	}
 
+
+
 	return localctx
 }
 
+
 // IImportBlockValueContext is an interface to support dynamic dispatch.
 type IImportBlockValueContext interface {
 	antlr.ParserRuleContext
@@ -539,6 +579,7 @@ func (s *ImportBlockValueContext) ToStringTree(ruleNames []string, recog antlr.R
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ImportBlockValueContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -549,6 +590,9 @@ func (s *ImportBlockValueContext) Accept(visitor antlr.ParseTreeVisitor) interfa
 	}
 }
 
+
+
+
 func (p *ApiParserParser) ImportBlockValue() (localctx IImportBlockValueContext) {
 	localctx = NewImportBlockValueContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 12, ApiParserParserRULE_importBlockValue)
@@ -575,9 +619,12 @@ func (p *ApiParserParser) ImportBlockValue() (localctx IImportBlockValueContext)
 		p.ImportValue()
 	}
 
+
+
 	return localctx
 }
 
+
 // IImportValueContext is an interface to support dynamic dispatch.
 type IImportValueContext interface {
 	antlr.ParserRuleContext
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_parser2.go b/tools/goctl/api/parser/g4/gen/api/apiparser_parser2.go
index b7325b2b..fc067f30 100755
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_parser2.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_parser2.go
@@ -24,6 +24,7 @@ func (s *ImportValueContext) ToStringTree(ruleNames []string, recog antlr.Recogn
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ImportValueContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -34,6 +35,9 @@ func (s *ImportValueContext) Accept(visitor antlr.ParseTreeVisitor) interface{}
 	}
 }
 
+
+
+
 func (p *ApiParserParser) ImportValue() (localctx IImportValueContext) {
 	localctx = NewImportValueContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 14, ApiParserParserRULE_importValue)
@@ -61,9 +65,12 @@ func (p *ApiParserParser) ImportValue() (localctx IImportValueContext) {
 		p.Match(ApiParserParserSTRING)
 	}
 
+
+
 	return localctx
 }
 
+
 // IInfoSpecContext is an interface to support dynamic dispatch.
 type IInfoSpecContext interface {
 	antlr.ParserRuleContext
@@ -72,22 +79,24 @@ type IInfoSpecContext interface {
 	GetParser() antlr.Parser
 
 	// GetInfoToken returns the infoToken token.
-	GetInfoToken() antlr.Token
+	GetInfoToken() antlr.Token 
 
 	// GetLp returns the lp token.
-	GetLp() antlr.Token
+	GetLp() antlr.Token 
 
 	// GetRp returns the rp token.
-	GetRp() antlr.Token
+	GetRp() antlr.Token 
+
 
 	// SetInfoToken sets the infoToken token.
-	SetInfoToken(antlr.Token)
+	SetInfoToken(antlr.Token) 
 
 	// SetLp sets the lp token.
-	SetLp(antlr.Token)
+	SetLp(antlr.Token) 
 
 	// SetRp sets the rp token.
-	SetRp(antlr.Token)
+	SetRp(antlr.Token) 
+
 
 	// IsInfoSpecContext differentiates from other interfaces.
 	IsInfoSpecContext()
@@ -95,10 +104,10 @@ type IInfoSpecContext interface {
 
 type InfoSpecContext struct {
 	*antlr.BaseParserRuleContext
-	parser    antlr.Parser
+	parser antlr.Parser
 	infoToken antlr.Token
-	lp        antlr.Token
-	rp        antlr.Token
+	lp antlr.Token
+	rp antlr.Token
 }
 
 func NewEmptyInfoSpecContext() *InfoSpecContext {
@@ -129,12 +138,14 @@ func (s *InfoSpecContext) GetLp() antlr.Token { return s.lp }
 
 func (s *InfoSpecContext) GetRp() antlr.Token { return s.rp }
 
+
 func (s *InfoSpecContext) SetInfoToken(v antlr.Token) { s.infoToken = v }
 
 func (s *InfoSpecContext) SetLp(v antlr.Token) { s.lp = v }
 
 func (s *InfoSpecContext) SetRp(v antlr.Token) { s.rp = v }
 
+
 func (s *InfoSpecContext) ID() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserID, 0)
 }
@@ -170,6 +181,7 @@ func (s *InfoSpecContext) ToStringTree(ruleNames []string, recog antlr.Recognize
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *InfoSpecContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -180,11 +192,15 @@ func (s *InfoSpecContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) InfoSpec() (localctx IInfoSpecContext) {
 	localctx = NewInfoSpecContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 16, ApiParserParserRULE_infoSpec)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -202,7 +218,7 @@ func (p *ApiParserParser) InfoSpec() (localctx IInfoSpecContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	match(p, "info")
+	match(p,"info")
 	{
 		p.SetState(117)
 
@@ -226,6 +242,7 @@ func (p *ApiParserParser) InfoSpec() (localctx IInfoSpecContext) {
 			p.KvLit()
 		}
 
+
 		p.SetState(122)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
@@ -238,9 +255,12 @@ func (p *ApiParserParser) InfoSpec() (localctx IInfoSpecContext) {
 		localctx.(*InfoSpecContext).rp = _m
 	}
 
+
+
 	return localctx
 }
 
+
 // ITypeSpecContext is an interface to support dynamic dispatch.
 type ITypeSpecContext interface {
 	antlr.ParserRuleContext
@@ -307,6 +327,7 @@ func (s *TypeSpecContext) ToStringTree(ruleNames []string, recog antlr.Recognize
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *TypeSpecContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -317,6 +338,9 @@ func (s *TypeSpecContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) TypeSpec() (localctx ITypeSpecContext) {
 	localctx = NewTypeSpecContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 18, ApiParserParserRULE_typeSpec)
@@ -347,6 +371,7 @@ func (p *ApiParserParser) TypeSpec() (localctx ITypeSpecContext) {
 			p.TypeLit()
 		}
 
+
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
@@ -356,9 +381,11 @@ func (p *ApiParserParser) TypeSpec() (localctx ITypeSpecContext) {
 
 	}
 
+
 	return localctx
 }
 
+
 // ITypeLitContext is an interface to support dynamic dispatch.
 type ITypeLitContext interface {
 	antlr.ParserRuleContext
@@ -367,10 +394,12 @@ type ITypeLitContext interface {
 	GetParser() antlr.Parser
 
 	// GetTypeToken returns the typeToken token.
-	GetTypeToken() antlr.Token
+	GetTypeToken() antlr.Token 
+
 
 	// SetTypeToken sets the typeToken token.
-	SetTypeToken(antlr.Token)
+	SetTypeToken(antlr.Token) 
+
 
 	// IsTypeLitContext differentiates from other interfaces.
 	IsTypeLitContext()
@@ -378,7 +407,7 @@ type ITypeLitContext interface {
 
 type TypeLitContext struct {
 	*antlr.BaseParserRuleContext
-	parser    antlr.Parser
+	parser antlr.Parser
 	typeToken antlr.Token
 }
 
@@ -406,8 +435,10 @@ func (s *TypeLitContext) GetParser() antlr.Parser { return s.parser }
 
 func (s *TypeLitContext) GetTypeToken() antlr.Token { return s.typeToken }
 
+
 func (s *TypeLitContext) SetTypeToken(v antlr.Token) { s.typeToken = v }
 
+
 func (s *TypeLitContext) TypeLitBody() ITypeLitBodyContext {
 	var t = s.GetTypedRuleContext(reflect.TypeOf((*ITypeLitBodyContext)(nil)).Elem(), 0)
 
@@ -430,6 +461,7 @@ func (s *TypeLitContext) ToStringTree(ruleNames []string, recog antlr.Recognizer
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *TypeLitContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -440,6 +472,9 @@ func (s *TypeLitContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) TypeLit() (localctx ITypeLitContext) {
 	localctx = NewTypeLitContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 20, ApiParserParserRULE_typeLit)
@@ -461,7 +496,7 @@ func (p *ApiParserParser) TypeLit() (localctx ITypeLitContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	match(p, "type")
+	match(p,"type")
 	{
 		p.SetState(131)
 
@@ -474,9 +509,12 @@ func (p *ApiParserParser) TypeLit() (localctx ITypeLitContext) {
 		p.TypeLitBody()
 	}
 
+
+
 	return localctx
 }
 
+
 // ITypeBlockContext is an interface to support dynamic dispatch.
 type ITypeBlockContext interface {
 	antlr.ParserRuleContext
@@ -485,22 +523,24 @@ type ITypeBlockContext interface {
 	GetParser() antlr.Parser
 
 	// GetTypeToken returns the typeToken token.
-	GetTypeToken() antlr.Token
+	GetTypeToken() antlr.Token 
 
 	// GetLp returns the lp token.
-	GetLp() antlr.Token
+	GetLp() antlr.Token 
 
 	// GetRp returns the rp token.
-	GetRp() antlr.Token
+	GetRp() antlr.Token 
+
 
 	// SetTypeToken sets the typeToken token.
-	SetTypeToken(antlr.Token)
+	SetTypeToken(antlr.Token) 
 
 	// SetLp sets the lp token.
-	SetLp(antlr.Token)
+	SetLp(antlr.Token) 
 
 	// SetRp sets the rp token.
-	SetRp(antlr.Token)
+	SetRp(antlr.Token) 
+
 
 	// IsTypeBlockContext differentiates from other interfaces.
 	IsTypeBlockContext()
@@ -508,10 +548,10 @@ type ITypeBlockContext interface {
 
 type TypeBlockContext struct {
 	*antlr.BaseParserRuleContext
-	parser    antlr.Parser
+	parser antlr.Parser
 	typeToken antlr.Token
-	lp        antlr.Token
-	rp        antlr.Token
+	lp antlr.Token
+	rp antlr.Token
 }
 
 func NewEmptyTypeBlockContext() *TypeBlockContext {
@@ -542,12 +582,14 @@ func (s *TypeBlockContext) GetLp() antlr.Token { return s.lp }
 
 func (s *TypeBlockContext) GetRp() antlr.Token { return s.rp }
 
+
 func (s *TypeBlockContext) SetTypeToken(v antlr.Token) { s.typeToken = v }
 
 func (s *TypeBlockContext) SetLp(v antlr.Token) { s.lp = v }
 
 func (s *TypeBlockContext) SetRp(v antlr.Token) { s.rp = v }
 
+
 func (s *TypeBlockContext) ID() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserID, 0)
 }
@@ -583,6 +625,7 @@ func (s *TypeBlockContext) ToStringTree(ruleNames []string, recog antlr.Recogniz
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *TypeBlockContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -593,11 +636,15 @@ func (s *TypeBlockContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) TypeBlock() (localctx ITypeBlockContext) {
 	localctx = NewTypeBlockContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 22, ApiParserParserRULE_typeBlock)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -615,7 +662,7 @@ func (p *ApiParserParser) TypeBlock() (localctx ITypeBlockContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	match(p, "type")
+	match(p,"type")
 	{
 		p.SetState(135)
 
@@ -634,12 +681,14 @@ func (p *ApiParserParser) TypeBlock() (localctx ITypeBlockContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	for _la == ApiParserParserID {
 		{
 			p.SetState(137)
 			p.TypeBlockBody()
 		}
 
+
 		p.SetState(142)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
@@ -652,5 +701,7 @@ func (p *ApiParserParser) TypeBlock() (localctx ITypeBlockContext) {
 		localctx.(*TypeBlockContext).rp = _m
 	}
 
+
+
 	return localctx
 }
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_parser3.go b/tools/goctl/api/parser/g4/gen/api/apiparser_parser3.go
index fa7ff8fb..ac658528 100755
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_parser3.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_parser3.go
@@ -10,6 +10,7 @@ import (
 // The apiparser_parser.go file was split into multiple files because it
 // was too large and caused a possible memory overflow during goctl installation.
 
+
 // ITypeLitBodyContext is an interface to support dynamic dispatch.
 type ITypeLitBodyContext interface {
 	antlr.ParserRuleContext
@@ -76,6 +77,7 @@ func (s *TypeLitBodyContext) ToStringTree(ruleNames []string, recog antlr.Recogn
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *TypeLitBodyContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -86,6 +88,9 @@ func (s *TypeLitBodyContext) Accept(visitor antlr.ParseTreeVisitor) interface{}
 	}
 }
 
+
+
+
 func (p *ApiParserParser) TypeLitBody() (localctx ITypeLitBodyContext) {
 	localctx = NewTypeLitBodyContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 24, ApiParserParserRULE_typeLitBody)
@@ -116,6 +121,7 @@ func (p *ApiParserParser) TypeLitBody() (localctx ITypeLitBodyContext) {
 			p.TypeStruct()
 		}
 
+
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
@@ -125,9 +131,11 @@ func (p *ApiParserParser) TypeLitBody() (localctx ITypeLitBodyContext) {
 
 	}
 
+
 	return localctx
 }
 
+
 // ITypeBlockBodyContext is an interface to support dynamic dispatch.
 type ITypeBlockBodyContext interface {
 	antlr.ParserRuleContext
@@ -194,6 +202,7 @@ func (s *TypeBlockBodyContext) ToStringTree(ruleNames []string, recog antlr.Reco
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *TypeBlockBodyContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -204,6 +213,9 @@ func (s *TypeBlockBodyContext) Accept(visitor antlr.ParseTreeVisitor) interface{
 	}
 }
 
+
+
+
 func (p *ApiParserParser) TypeBlockBody() (localctx ITypeBlockBodyContext) {
 	localctx = NewTypeBlockBodyContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 26, ApiParserParserRULE_typeBlockBody)
@@ -234,6 +246,7 @@ func (p *ApiParserParser) TypeBlockBody() (localctx ITypeBlockBodyContext) {
 			p.TypeBlockStruct()
 		}
 
+
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
@@ -243,9 +256,11 @@ func (p *ApiParserParser) TypeBlockBody() (localctx ITypeBlockBodyContext) {
 
 	}
 
+
 	return localctx
 }
 
+
 // ITypeStructContext is an interface to support dynamic dispatch.
 type ITypeStructContext interface {
 	antlr.ParserRuleContext
@@ -254,28 +269,30 @@ type ITypeStructContext interface {
 	GetParser() antlr.Parser
 
 	// GetStructName returns the structName token.
-	GetStructName() antlr.Token
+	GetStructName() antlr.Token 
 
 	// GetStructToken returns the structToken token.
-	GetStructToken() antlr.Token
+	GetStructToken() antlr.Token 
 
 	// GetLbrace returns the lbrace token.
-	GetLbrace() antlr.Token
+	GetLbrace() antlr.Token 
 
 	// GetRbrace returns the rbrace token.
-	GetRbrace() antlr.Token
+	GetRbrace() antlr.Token 
+
 
 	// SetStructName sets the structName token.
-	SetStructName(antlr.Token)
+	SetStructName(antlr.Token) 
 
 	// SetStructToken sets the structToken token.
-	SetStructToken(antlr.Token)
+	SetStructToken(antlr.Token) 
 
 	// SetLbrace sets the lbrace token.
-	SetLbrace(antlr.Token)
+	SetLbrace(antlr.Token) 
 
 	// SetRbrace sets the rbrace token.
-	SetRbrace(antlr.Token)
+	SetRbrace(antlr.Token) 
+
 
 	// IsTypeStructContext differentiates from other interfaces.
 	IsTypeStructContext()
@@ -283,11 +300,11 @@ type ITypeStructContext interface {
 
 type TypeStructContext struct {
 	*antlr.BaseParserRuleContext
-	parser      antlr.Parser
-	structName  antlr.Token
+	parser antlr.Parser
+	structName antlr.Token
 	structToken antlr.Token
-	lbrace      antlr.Token
-	rbrace      antlr.Token
+	lbrace antlr.Token
+	rbrace antlr.Token
 }
 
 func NewEmptyTypeStructContext() *TypeStructContext {
@@ -320,6 +337,7 @@ func (s *TypeStructContext) GetLbrace() antlr.Token { return s.lbrace }
 
 func (s *TypeStructContext) GetRbrace() antlr.Token { return s.rbrace }
 
+
 func (s *TypeStructContext) SetStructName(v antlr.Token) { s.structName = v }
 
 func (s *TypeStructContext) SetStructToken(v antlr.Token) { s.structToken = v }
@@ -328,6 +346,7 @@ func (s *TypeStructContext) SetLbrace(v antlr.Token) { s.lbrace = v }
 
 func (s *TypeStructContext) SetRbrace(v antlr.Token) { s.rbrace = v }
 
+
 func (s *TypeStructContext) AllID() []antlr.TerminalNode {
 	return s.GetTokens(ApiParserParserID)
 }
@@ -367,6 +386,7 @@ func (s *TypeStructContext) ToStringTree(ruleNames []string, recog antlr.Recogni
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *TypeStructContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -377,11 +397,15 @@ func (s *TypeStructContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) TypeStruct() (localctx ITypeStructContext) {
 	localctx = NewTypeStructContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 28, ApiParserParserRULE_typeStruct)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -413,6 +437,7 @@ func (p *ApiParserParser) TypeStruct() (localctx ITypeStructContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	if _la == ApiParserParserID {
 		{
 			p.SetState(155)
@@ -441,6 +466,7 @@ func (p *ApiParserParser) TypeStruct() (localctx ITypeStructContext) {
 				p.Field()
 			}
 
+
 		}
 		p.SetState(164)
 		p.GetErrorHandler().Sync(p)
@@ -454,9 +480,12 @@ func (p *ApiParserParser) TypeStruct() (localctx ITypeStructContext) {
 		localctx.(*TypeStructContext).rbrace = _m
 	}
 
+
+
 	return localctx
 }
 
+
 // ITypeAliasContext is an interface to support dynamic dispatch.
 type ITypeAliasContext interface {
 	antlr.ParserRuleContext
@@ -465,16 +494,18 @@ type ITypeAliasContext interface {
 	GetParser() antlr.Parser
 
 	// GetAlias returns the alias token.
-	GetAlias() antlr.Token
+	GetAlias() antlr.Token 
 
 	// GetAssign returns the assign token.
-	GetAssign() antlr.Token
+	GetAssign() antlr.Token 
+
 
 	// SetAlias sets the alias token.
-	SetAlias(antlr.Token)
+	SetAlias(antlr.Token) 
 
 	// SetAssign sets the assign token.
-	SetAssign(antlr.Token)
+	SetAssign(antlr.Token) 
+
 
 	// IsTypeAliasContext differentiates from other interfaces.
 	IsTypeAliasContext()
@@ -483,7 +514,7 @@ type ITypeAliasContext interface {
 type TypeAliasContext struct {
 	*antlr.BaseParserRuleContext
 	parser antlr.Parser
-	alias  antlr.Token
+	alias antlr.Token
 	assign antlr.Token
 }
 
@@ -513,10 +544,12 @@ func (s *TypeAliasContext) GetAlias() antlr.Token { return s.alias }
 
 func (s *TypeAliasContext) GetAssign() antlr.Token { return s.assign }
 
+
 func (s *TypeAliasContext) SetAlias(v antlr.Token) { s.alias = v }
 
 func (s *TypeAliasContext) SetAssign(v antlr.Token) { s.assign = v }
 
+
 func (s *TypeAliasContext) DataType() IDataTypeContext {
 	var t = s.GetTypedRuleContext(reflect.TypeOf((*IDataTypeContext)(nil)).Elem(), 0)
 
@@ -539,6 +572,7 @@ func (s *TypeAliasContext) ToStringTree(ruleNames []string, recog antlr.Recogniz
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *TypeAliasContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -549,11 +583,15 @@ func (s *TypeAliasContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) TypeAlias() (localctx ITypeAliasContext) {
 	localctx = NewTypeAliasContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 30, ApiParserParserRULE_typeAlias)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -583,6 +621,7 @@ func (p *ApiParserParser) TypeAlias() (localctx ITypeAliasContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	if _la == ApiParserParserT__0 {
 		{
 			p.SetState(169)
@@ -598,9 +637,12 @@ func (p *ApiParserParser) TypeAlias() (localctx ITypeAliasContext) {
 		p.DataType()
 	}
 
+
+
 	return localctx
 }
 
+
 // ITypeBlockStructContext is an interface to support dynamic dispatch.
 type ITypeBlockStructContext interface {
 	antlr.ParserRuleContext
@@ -609,28 +651,30 @@ type ITypeBlockStructContext interface {
 	GetParser() antlr.Parser
 
 	// GetStructName returns the structName token.
-	GetStructName() antlr.Token
+	GetStructName() antlr.Token 
 
 	// GetStructToken returns the structToken token.
-	GetStructToken() antlr.Token
+	GetStructToken() antlr.Token 
 
 	// GetLbrace returns the lbrace token.
-	GetLbrace() antlr.Token
+	GetLbrace() antlr.Token 
 
 	// GetRbrace returns the rbrace token.
-	GetRbrace() antlr.Token
+	GetRbrace() antlr.Token 
+
 
 	// SetStructName sets the structName token.
-	SetStructName(antlr.Token)
+	SetStructName(antlr.Token) 
 
 	// SetStructToken sets the structToken token.
-	SetStructToken(antlr.Token)
+	SetStructToken(antlr.Token) 
 
 	// SetLbrace sets the lbrace token.
-	SetLbrace(antlr.Token)
+	SetLbrace(antlr.Token) 
 
 	// SetRbrace sets the rbrace token.
-	SetRbrace(antlr.Token)
+	SetRbrace(antlr.Token) 
+
 
 	// IsTypeBlockStructContext differentiates from other interfaces.
 	IsTypeBlockStructContext()
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_parser4.go b/tools/goctl/api/parser/g4/gen/api/apiparser_parser4.go
index 5c7fcede..6f4487b7 100755
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_parser4.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_parser4.go
@@ -12,11 +12,11 @@ import (
 
 type TypeBlockStructContext struct {
 	*antlr.BaseParserRuleContext
-	parser      antlr.Parser
-	structName  antlr.Token
+	parser antlr.Parser
+	structName antlr.Token
 	structToken antlr.Token
-	lbrace      antlr.Token
-	rbrace      antlr.Token
+	lbrace antlr.Token
+	rbrace antlr.Token
 }
 
 func NewEmptyTypeBlockStructContext() *TypeBlockStructContext {
@@ -49,6 +49,7 @@ func (s *TypeBlockStructContext) GetLbrace() antlr.Token { return s.lbrace }
 
 func (s *TypeBlockStructContext) GetRbrace() antlr.Token { return s.rbrace }
 
+
 func (s *TypeBlockStructContext) SetStructName(v antlr.Token) { s.structName = v }
 
 func (s *TypeBlockStructContext) SetStructToken(v antlr.Token) { s.structToken = v }
@@ -57,6 +58,7 @@ func (s *TypeBlockStructContext) SetLbrace(v antlr.Token) { s.lbrace = v }
 
 func (s *TypeBlockStructContext) SetRbrace(v antlr.Token) { s.rbrace = v }
 
+
 func (s *TypeBlockStructContext) AllID() []antlr.TerminalNode {
 	return s.GetTokens(ApiParserParserID)
 }
@@ -96,6 +98,7 @@ func (s *TypeBlockStructContext) ToStringTree(ruleNames []string, recog antlr.Re
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *TypeBlockStructContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -106,11 +109,15 @@ func (s *TypeBlockStructContext) Accept(visitor antlr.ParseTreeVisitor) interfac
 	}
 }
 
+
+
+
 func (p *ApiParserParser) TypeBlockStruct() (localctx ITypeBlockStructContext) {
 	localctx = NewTypeBlockStructContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 32, ApiParserParserRULE_typeBlockStruct)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -142,6 +149,7 @@ func (p *ApiParserParser) TypeBlockStruct() (localctx ITypeBlockStructContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	if _la == ApiParserParserID {
 		{
 			p.SetState(176)
@@ -170,6 +178,7 @@ func (p *ApiParserParser) TypeBlockStruct() (localctx ITypeBlockStructContext) {
 				p.Field()
 			}
 
+
 		}
 		p.SetState(185)
 		p.GetErrorHandler().Sync(p)
@@ -183,9 +192,12 @@ func (p *ApiParserParser) TypeBlockStruct() (localctx ITypeBlockStructContext) {
 		localctx.(*TypeBlockStructContext).rbrace = _m
 	}
 
+
+
 	return localctx
 }
 
+
 // ITypeBlockAliasContext is an interface to support dynamic dispatch.
 type ITypeBlockAliasContext interface {
 	antlr.ParserRuleContext
@@ -194,16 +206,18 @@ type ITypeBlockAliasContext interface {
 	GetParser() antlr.Parser
 
 	// GetAlias returns the alias token.
-	GetAlias() antlr.Token
+	GetAlias() antlr.Token 
 
 	// GetAssign returns the assign token.
-	GetAssign() antlr.Token
+	GetAssign() antlr.Token 
+
 
 	// SetAlias sets the alias token.
-	SetAlias(antlr.Token)
+	SetAlias(antlr.Token) 
 
 	// SetAssign sets the assign token.
-	SetAssign(antlr.Token)
+	SetAssign(antlr.Token) 
+
 
 	// IsTypeBlockAliasContext differentiates from other interfaces.
 	IsTypeBlockAliasContext()
@@ -212,7 +226,7 @@ type ITypeBlockAliasContext interface {
 type TypeBlockAliasContext struct {
 	*antlr.BaseParserRuleContext
 	parser antlr.Parser
-	alias  antlr.Token
+	alias antlr.Token
 	assign antlr.Token
 }
 
@@ -242,10 +256,12 @@ func (s *TypeBlockAliasContext) GetAlias() antlr.Token { return s.alias }
 
 func (s *TypeBlockAliasContext) GetAssign() antlr.Token { return s.assign }
 
+
 func (s *TypeBlockAliasContext) SetAlias(v antlr.Token) { s.alias = v }
 
 func (s *TypeBlockAliasContext) SetAssign(v antlr.Token) { s.assign = v }
 
+
 func (s *TypeBlockAliasContext) DataType() IDataTypeContext {
 	var t = s.GetTypedRuleContext(reflect.TypeOf((*IDataTypeContext)(nil)).Elem(), 0)
 
@@ -268,6 +284,7 @@ func (s *TypeBlockAliasContext) ToStringTree(ruleNames []string, recog antlr.Rec
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *TypeBlockAliasContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -278,11 +295,15 @@ func (s *TypeBlockAliasContext) Accept(visitor antlr.ParseTreeVisitor) interface
 	}
 }
 
+
+
+
 func (p *ApiParserParser) TypeBlockAlias() (localctx ITypeBlockAliasContext) {
 	localctx = NewTypeBlockAliasContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 34, ApiParserParserRULE_typeBlockAlias)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -312,6 +333,7 @@ func (p *ApiParserParser) TypeBlockAlias() (localctx ITypeBlockAliasContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	if _la == ApiParserParserT__0 {
 		{
 			p.SetState(190)
@@ -327,9 +349,12 @@ func (p *ApiParserParser) TypeBlockAlias() (localctx ITypeBlockAliasContext) {
 		p.DataType()
 	}
 
+
+
 	return localctx
 }
 
+
 // IFieldContext is an interface to support dynamic dispatch.
 type IFieldContext interface {
 	antlr.ParserRuleContext
@@ -396,6 +421,7 @@ func (s *FieldContext) ToStringTree(ruleNames []string, recog antlr.Recognizer)
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *FieldContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -406,6 +432,9 @@ func (s *FieldContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) Field() (localctx IFieldContext) {
 	localctx = NewFieldContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 36, ApiParserParserRULE_field)
@@ -441,6 +470,7 @@ func (p *ApiParserParser) Field() (localctx IFieldContext) {
 			p.NormalField()
 		}
 
+
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
@@ -450,9 +480,11 @@ func (p *ApiParserParser) Field() (localctx IFieldContext) {
 
 	}
 
+
 	return localctx
 }
 
+
 // INormalFieldContext is an interface to support dynamic dispatch.
 type INormalFieldContext interface {
 	antlr.ParserRuleContext
@@ -461,16 +493,18 @@ type INormalFieldContext interface {
 	GetParser() antlr.Parser
 
 	// GetFieldName returns the fieldName token.
-	GetFieldName() antlr.Token
+	GetFieldName() antlr.Token 
 
 	// GetTag returns the tag token.
-	GetTag() antlr.Token
+	GetTag() antlr.Token 
+
 
 	// SetFieldName sets the fieldName token.
-	SetFieldName(antlr.Token)
+	SetFieldName(antlr.Token) 
 
 	// SetTag sets the tag token.
-	SetTag(antlr.Token)
+	SetTag(antlr.Token) 
+
 
 	// IsNormalFieldContext differentiates from other interfaces.
 	IsNormalFieldContext()
@@ -478,9 +512,9 @@ type INormalFieldContext interface {
 
 type NormalFieldContext struct {
 	*antlr.BaseParserRuleContext
-	parser    antlr.Parser
+	parser antlr.Parser
 	fieldName antlr.Token
-	tag       antlr.Token
+	tag antlr.Token
 }
 
 func NewEmptyNormalFieldContext() *NormalFieldContext {
@@ -509,10 +543,12 @@ func (s *NormalFieldContext) GetFieldName() antlr.Token { return s.fieldName }
 
 func (s *NormalFieldContext) GetTag() antlr.Token { return s.tag }
 
+
 func (s *NormalFieldContext) SetFieldName(v antlr.Token) { s.fieldName = v }
 
 func (s *NormalFieldContext) SetTag(v antlr.Token) { s.tag = v }
 
+
 func (s *NormalFieldContext) DataType() IDataTypeContext {
 	var t = s.GetTypedRuleContext(reflect.TypeOf((*IDataTypeContext)(nil)).Elem(), 0)
 
@@ -539,6 +575,7 @@ func (s *NormalFieldContext) ToStringTree(ruleNames []string, recog antlr.Recogn
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *NormalFieldContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -549,6 +586,9 @@ func (s *NormalFieldContext) Accept(visitor antlr.ParseTreeVisitor) interface{}
 	}
 }
 
+
+
+
 func (p *ApiParserParser) NormalField() (localctx INormalFieldContext) {
 	localctx = NewNormalFieldContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 38, ApiParserParserRULE_normalField)
@@ -585,6 +625,7 @@ func (p *ApiParserParser) NormalField() (localctx INormalFieldContext) {
 	p.SetState(204)
 	p.GetErrorHandler().Sync(p)
 
+
 	if p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 16, p.GetParserRuleContext()) == 1 {
 		{
 			p.SetState(203)
@@ -594,11 +635,15 @@ func (p *ApiParserParser) NormalField() (localctx INormalFieldContext) {
 			localctx.(*NormalFieldContext).tag = _m
 		}
 
+
 	}
 
+
+
 	return localctx
 }
 
+
 // IAnonymousFiledContext is an interface to support dynamic dispatch.
 type IAnonymousFiledContext interface {
 	antlr.ParserRuleContext
@@ -607,10 +652,12 @@ type IAnonymousFiledContext interface {
 	GetParser() antlr.Parser
 
 	// GetStar returns the star token.
-	GetStar() antlr.Token
+	GetStar() antlr.Token 
+
 
 	// SetStar sets the star token.
-	SetStar(antlr.Token)
+	SetStar(antlr.Token) 
+
 
 	// IsAnonymousFiledContext differentiates from other interfaces.
 	IsAnonymousFiledContext()
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_parser5.go b/tools/goctl/api/parser/g4/gen/api/apiparser_parser5.go
index ffba26d3..e4350446 100755
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_parser5.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_parser5.go
@@ -13,7 +13,7 @@ import (
 type AnonymousFiledContext struct {
 	*antlr.BaseParserRuleContext
 	parser antlr.Parser
-	star   antlr.Token
+	star antlr.Token
 }
 
 func NewEmptyAnonymousFiledContext() *AnonymousFiledContext {
@@ -40,8 +40,10 @@ func (s *AnonymousFiledContext) GetParser() antlr.Parser { return s.parser }
 
 func (s *AnonymousFiledContext) GetStar() antlr.Token { return s.star }
 
+
 func (s *AnonymousFiledContext) SetStar(v antlr.Token) { s.star = v }
 
+
 func (s *AnonymousFiledContext) ID() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserID, 0)
 }
@@ -54,6 +56,7 @@ func (s *AnonymousFiledContext) ToStringTree(ruleNames []string, recog antlr.Rec
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *AnonymousFiledContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -64,11 +67,15 @@ func (s *AnonymousFiledContext) Accept(visitor antlr.ParseTreeVisitor) interface
 	}
 }
 
+
+
+
 func (p *ApiParserParser) AnonymousFiled() (localctx IAnonymousFiledContext) {
 	localctx = NewAnonymousFiledContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 40, ApiParserParserRULE_anonymousFiled)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -90,6 +97,7 @@ func (p *ApiParserParser) AnonymousFiled() (localctx IAnonymousFiledContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	if _la == ApiParserParserT__5 {
 		{
 			p.SetState(206)
@@ -105,9 +113,12 @@ func (p *ApiParserParser) AnonymousFiled() (localctx IAnonymousFiledContext) {
 		p.Match(ApiParserParserID)
 	}
 
+
+
 	return localctx
 }
 
+
 // IDataTypeContext is an interface to support dynamic dispatch.
 type IDataTypeContext interface {
 	antlr.ParserRuleContext
@@ -116,16 +127,18 @@ type IDataTypeContext interface {
 	GetParser() antlr.Parser
 
 	// GetInter returns the inter token.
-	GetInter() antlr.Token
+	GetInter() antlr.Token 
 
 	// GetTime returns the time token.
-	GetTime() antlr.Token
+	GetTime() antlr.Token 
+
 
 	// SetInter sets the inter token.
-	SetInter(antlr.Token)
+	SetInter(antlr.Token) 
 
 	// SetTime sets the time token.
-	SetTime(antlr.Token)
+	SetTime(antlr.Token) 
+
 
 	// IsDataTypeContext differentiates from other interfaces.
 	IsDataTypeContext()
@@ -134,8 +147,8 @@ type IDataTypeContext interface {
 type DataTypeContext struct {
 	*antlr.BaseParserRuleContext
 	parser antlr.Parser
-	inter  antlr.Token
-	time   antlr.Token
+	inter antlr.Token
+	time antlr.Token
 }
 
 func NewEmptyDataTypeContext() *DataTypeContext {
@@ -164,10 +177,12 @@ func (s *DataTypeContext) GetInter() antlr.Token { return s.inter }
 
 func (s *DataTypeContext) GetTime() antlr.Token { return s.time }
 
+
 func (s *DataTypeContext) SetInter(v antlr.Token) { s.inter = v }
 
 func (s *DataTypeContext) SetTime(v antlr.Token) { s.time = v }
 
+
 func (s *DataTypeContext) ID() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserID, 0)
 }
@@ -224,6 +239,7 @@ func (s *DataTypeContext) ToStringTree(ruleNames []string, recog antlr.Recognize
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *DataTypeContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -234,6 +250,9 @@ func (s *DataTypeContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) DataType() (localctx IDataTypeContext) {
 	localctx = NewDataTypeContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 42, ApiParserParserRULE_dataType)
@@ -265,6 +284,7 @@ func (p *ApiParserParser) DataType() (localctx IDataTypeContext) {
 			p.Match(ApiParserParserID)
 		}
 
+
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
@@ -272,6 +292,7 @@ func (p *ApiParserParser) DataType() (localctx IDataTypeContext) {
 			p.MapType()
 		}
 
+
 	case 3:
 		p.EnterOuterAlt(localctx, 3)
 		{
@@ -279,6 +300,7 @@ func (p *ApiParserParser) DataType() (localctx IDataTypeContext) {
 			p.ArrayType()
 		}
 
+
 	case 4:
 		p.EnterOuterAlt(localctx, 4)
 		{
@@ -289,6 +311,7 @@ func (p *ApiParserParser) DataType() (localctx IDataTypeContext) {
 			localctx.(*DataTypeContext).inter = _m
 		}
 
+
 	case 5:
 		p.EnterOuterAlt(localctx, 5)
 		{
@@ -299,6 +322,7 @@ func (p *ApiParserParser) DataType() (localctx IDataTypeContext) {
 			localctx.(*DataTypeContext).time = _m
 		}
 
+
 	case 6:
 		p.EnterOuterAlt(localctx, 6)
 		{
@@ -306,6 +330,7 @@ func (p *ApiParserParser) DataType() (localctx IDataTypeContext) {
 			p.PointerType()
 		}
 
+
 	case 7:
 		p.EnterOuterAlt(localctx, 7)
 		{
@@ -315,9 +340,11 @@ func (p *ApiParserParser) DataType() (localctx IDataTypeContext) {
 
 	}
 
+
 	return localctx
 }
 
+
 // IPointerTypeContext is an interface to support dynamic dispatch.
 type IPointerTypeContext interface {
 	antlr.ParserRuleContext
@@ -326,10 +353,12 @@ type IPointerTypeContext interface {
 	GetParser() antlr.Parser
 
 	// GetStar returns the star token.
-	GetStar() antlr.Token
+	GetStar() antlr.Token 
+
 
 	// SetStar sets the star token.
-	SetStar(antlr.Token)
+	SetStar(antlr.Token) 
+
 
 	// IsPointerTypeContext differentiates from other interfaces.
 	IsPointerTypeContext()
@@ -338,7 +367,7 @@ type IPointerTypeContext interface {
 type PointerTypeContext struct {
 	*antlr.BaseParserRuleContext
 	parser antlr.Parser
-	star   antlr.Token
+	star antlr.Token
 }
 
 func NewEmptyPointerTypeContext() *PointerTypeContext {
@@ -365,8 +394,10 @@ func (s *PointerTypeContext) GetParser() antlr.Parser { return s.parser }
 
 func (s *PointerTypeContext) GetStar() antlr.Token { return s.star }
 
+
 func (s *PointerTypeContext) SetStar(v antlr.Token) { s.star = v }
 
+
 func (s *PointerTypeContext) ID() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserID, 0)
 }
@@ -379,6 +410,7 @@ func (s *PointerTypeContext) ToStringTree(ruleNames []string, recog antlr.Recogn
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *PointerTypeContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -389,6 +421,9 @@ func (s *PointerTypeContext) Accept(visitor antlr.ParseTreeVisitor) interface{}
 	}
 }
 
+
+
+
 func (p *ApiParserParser) PointerType() (localctx IPointerTypeContext) {
 	localctx = NewPointerTypeContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 44, ApiParserParserRULE_pointerType)
@@ -423,9 +458,12 @@ func (p *ApiParserParser) PointerType() (localctx IPointerTypeContext) {
 		p.Match(ApiParserParserID)
 	}
 
+
+
 	return localctx
 }
 
+
 // IMapTypeContext is an interface to support dynamic dispatch.
 type IMapTypeContext interface {
 	antlr.ParserRuleContext
@@ -434,47 +472,51 @@ type IMapTypeContext interface {
 	GetParser() antlr.Parser
 
 	// GetMapToken returns the mapToken token.
-	GetMapToken() antlr.Token
+	GetMapToken() antlr.Token 
 
 	// GetLbrack returns the lbrack token.
-	GetLbrack() antlr.Token
+	GetLbrack() antlr.Token 
 
 	// GetKey returns the key token.
-	GetKey() antlr.Token
+	GetKey() antlr.Token 
 
 	// GetRbrack returns the rbrack token.
-	GetRbrack() antlr.Token
+	GetRbrack() antlr.Token 
+
 
 	// SetMapToken sets the mapToken token.
-	SetMapToken(antlr.Token)
+	SetMapToken(antlr.Token) 
 
 	// SetLbrack sets the lbrack token.
-	SetLbrack(antlr.Token)
+	SetLbrack(antlr.Token) 
 
 	// SetKey sets the key token.
-	SetKey(antlr.Token)
+	SetKey(antlr.Token) 
 
 	// SetRbrack sets the rbrack token.
-	SetRbrack(antlr.Token)
+	SetRbrack(antlr.Token) 
+
 
 	// GetValue returns the value rule contexts.
 	GetValue() IDataTypeContext
 
+
 	// SetValue sets the value rule contexts.
 	SetValue(IDataTypeContext)
 
+
 	// IsMapTypeContext differentiates from other interfaces.
 	IsMapTypeContext()
 }
 
 type MapTypeContext struct {
 	*antlr.BaseParserRuleContext
-	parser   antlr.Parser
+	parser antlr.Parser
 	mapToken antlr.Token
-	lbrack   antlr.Token
-	key      antlr.Token
-	rbrack   antlr.Token
-	value    IDataTypeContext
+	lbrack antlr.Token
+	key antlr.Token
+	rbrack antlr.Token
+	value IDataTypeContext 
 }
 
 func NewEmptyMapTypeContext() *MapTypeContext {
@@ -507,6 +549,7 @@ func (s *MapTypeContext) GetKey() antlr.Token { return s.key }
 
 func (s *MapTypeContext) GetRbrack() antlr.Token { return s.rbrack }
 
+
 func (s *MapTypeContext) SetMapToken(v antlr.Token) { s.mapToken = v }
 
 func (s *MapTypeContext) SetLbrack(v antlr.Token) { s.lbrack = v }
@@ -515,10 +558,13 @@ func (s *MapTypeContext) SetKey(v antlr.Token) { s.key = v }
 
 func (s *MapTypeContext) SetRbrack(v antlr.Token) { s.rbrack = v }
 
+
 func (s *MapTypeContext) GetValue() IDataTypeContext { return s.value }
 
+
 func (s *MapTypeContext) SetValue(v IDataTypeContext) { s.value = v }
 
+
 func (s *MapTypeContext) AllID() []antlr.TerminalNode {
 	return s.GetTokens(ApiParserParserID)
 }
@@ -545,6 +591,7 @@ func (s *MapTypeContext) ToStringTree(ruleNames []string, recog antlr.Recognizer
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *MapTypeContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -555,6 +602,9 @@ func (s *MapTypeContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) MapType() (localctx IMapTypeContext) {
 	localctx = NewMapTypeContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 46, ApiParserParserRULE_mapType)
@@ -576,7 +626,7 @@ func (p *ApiParserParser) MapType() (localctx IMapTypeContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	match(p, "map")
+	match(p,"map")
 	{
 		p.SetState(226)
 
@@ -611,8 +661,11 @@ func (p *ApiParserParser) MapType() (localctx IMapTypeContext) {
 
 		var _x = p.DataType()
 
+
 		localctx.(*MapTypeContext).value = _x
 	}
 
+
+
 	return localctx
 }
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_parser6.go b/tools/goctl/api/parser/g4/gen/api/apiparser_parser6.go
index 3003df94..2c365555 100755
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_parser6.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_parser6.go
@@ -10,6 +10,7 @@ import (
 // The apiparser_parser.go file was split into multiple files because it
 // was too large and caused a possible memory overflow during goctl installation.
 
+
 // IArrayTypeContext is an interface to support dynamic dispatch.
 type IArrayTypeContext interface {
 	antlr.ParserRuleContext
@@ -18,16 +19,18 @@ type IArrayTypeContext interface {
 	GetParser() antlr.Parser
 
 	// GetLbrack returns the lbrack token.
-	GetLbrack() antlr.Token
+	GetLbrack() antlr.Token 
 
 	// GetRbrack returns the rbrack token.
-	GetRbrack() antlr.Token
+	GetRbrack() antlr.Token 
+
 
 	// SetLbrack sets the lbrack token.
-	SetLbrack(antlr.Token)
+	SetLbrack(antlr.Token) 
 
 	// SetRbrack sets the rbrack token.
-	SetRbrack(antlr.Token)
+	SetRbrack(antlr.Token) 
+
 
 	// IsArrayTypeContext differentiates from other interfaces.
 	IsArrayTypeContext()
@@ -66,10 +69,12 @@ func (s *ArrayTypeContext) GetLbrack() antlr.Token { return s.lbrack }
 
 func (s *ArrayTypeContext) GetRbrack() antlr.Token { return s.rbrack }
 
+
 func (s *ArrayTypeContext) SetLbrack(v antlr.Token) { s.lbrack = v }
 
 func (s *ArrayTypeContext) SetRbrack(v antlr.Token) { s.rbrack = v }
 
+
 func (s *ArrayTypeContext) DataType() IDataTypeContext {
 	var t = s.GetTypedRuleContext(reflect.TypeOf((*IDataTypeContext)(nil)).Elem(), 0)
 
@@ -88,6 +93,7 @@ func (s *ArrayTypeContext) ToStringTree(ruleNames []string, recog antlr.Recogniz
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ArrayTypeContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -98,6 +104,9 @@ func (s *ArrayTypeContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) ArrayType() (localctx IArrayTypeContext) {
 	localctx = NewArrayTypeContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 48, ApiParserParserRULE_arrayType)
@@ -138,9 +147,12 @@ func (p *ApiParserParser) ArrayType() (localctx IArrayTypeContext) {
 		p.DataType()
 	}
 
+
+
 	return localctx
 }
 
+
 // IServiceSpecContext is an interface to support dynamic dispatch.
 type IServiceSpecContext interface {
 	antlr.ParserRuleContext
@@ -207,6 +219,7 @@ func (s *ServiceSpecContext) ToStringTree(ruleNames []string, recog antlr.Recogn
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ServiceSpecContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -217,11 +230,15 @@ func (s *ServiceSpecContext) Accept(visitor antlr.ParseTreeVisitor) interface{}
 	}
 }
 
+
+
+
 func (p *ApiParserParser) ServiceSpec() (localctx IServiceSpecContext) {
 	localctx = NewServiceSpecContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 50, ApiParserParserRULE_serviceSpec)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -243,6 +260,7 @@ func (p *ApiParserParser) ServiceSpec() (localctx IServiceSpecContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	if _la == ApiParserParserATSERVER {
 		{
 			p.SetState(237)
@@ -255,9 +273,12 @@ func (p *ApiParserParser) ServiceSpec() (localctx IServiceSpecContext) {
 		p.ServiceApi()
 	}
 
+
+
 	return localctx
 }
 
+
 // IAtServerContext is an interface to support dynamic dispatch.
 type IAtServerContext interface {
 	antlr.ParserRuleContext
@@ -266,16 +287,18 @@ type IAtServerContext interface {
 	GetParser() antlr.Parser
 
 	// GetLp returns the lp token.
-	GetLp() antlr.Token
+	GetLp() antlr.Token 
 
 	// GetRp returns the rp token.
-	GetRp() antlr.Token
+	GetRp() antlr.Token 
+
 
 	// SetLp sets the lp token.
-	SetLp(antlr.Token)
+	SetLp(antlr.Token) 
 
 	// SetRp sets the rp token.
-	SetRp(antlr.Token)
+	SetRp(antlr.Token) 
+
 
 	// IsAtServerContext differentiates from other interfaces.
 	IsAtServerContext()
@@ -284,8 +307,8 @@ type IAtServerContext interface {
 type AtServerContext struct {
 	*antlr.BaseParserRuleContext
 	parser antlr.Parser
-	lp     antlr.Token
-	rp     antlr.Token
+	lp antlr.Token
+	rp antlr.Token
 }
 
 func NewEmptyAtServerContext() *AtServerContext {
@@ -314,10 +337,12 @@ func (s *AtServerContext) GetLp() antlr.Token { return s.lp }
 
 func (s *AtServerContext) GetRp() antlr.Token { return s.rp }
 
+
 func (s *AtServerContext) SetLp(v antlr.Token) { s.lp = v }
 
 func (s *AtServerContext) SetRp(v antlr.Token) { s.rp = v }
 
+
 func (s *AtServerContext) ATSERVER() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserATSERVER, 0)
 }
@@ -353,6 +378,7 @@ func (s *AtServerContext) ToStringTree(ruleNames []string, recog antlr.Recognize
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *AtServerContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -363,11 +389,15 @@ func (s *AtServerContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) AtServer() (localctx IAtServerContext) {
 	localctx = NewAtServerContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 52, ApiParserParserRULE_atServer)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -405,6 +435,7 @@ func (p *ApiParserParser) AtServer() (localctx IAtServerContext) {
 			p.KvLit()
 		}
 
+
 		p.SetState(247)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
@@ -417,9 +448,12 @@ func (p *ApiParserParser) AtServer() (localctx IAtServerContext) {
 		localctx.(*AtServerContext).rp = _m
 	}
 
+
+
 	return localctx
 }
 
+
 // IServiceApiContext is an interface to support dynamic dispatch.
 type IServiceApiContext interface {
 	antlr.ParserRuleContext
@@ -428,22 +462,24 @@ type IServiceApiContext interface {
 	GetParser() antlr.Parser
 
 	// GetServiceToken returns the serviceToken token.
-	GetServiceToken() antlr.Token
+	GetServiceToken() antlr.Token 
 
 	// GetLbrace returns the lbrace token.
-	GetLbrace() antlr.Token
+	GetLbrace() antlr.Token 
 
 	// GetRbrace returns the rbrace token.
-	GetRbrace() antlr.Token
+	GetRbrace() antlr.Token 
+
 
 	// SetServiceToken sets the serviceToken token.
-	SetServiceToken(antlr.Token)
+	SetServiceToken(antlr.Token) 
 
 	// SetLbrace sets the lbrace token.
-	SetLbrace(antlr.Token)
+	SetLbrace(antlr.Token) 
 
 	// SetRbrace sets the rbrace token.
-	SetRbrace(antlr.Token)
+	SetRbrace(antlr.Token) 
+
 
 	// IsServiceApiContext differentiates from other interfaces.
 	IsServiceApiContext()
@@ -451,10 +487,10 @@ type IServiceApiContext interface {
 
 type ServiceApiContext struct {
 	*antlr.BaseParserRuleContext
-	parser       antlr.Parser
+	parser antlr.Parser
 	serviceToken antlr.Token
-	lbrace       antlr.Token
-	rbrace       antlr.Token
+	lbrace antlr.Token
+	rbrace antlr.Token
 }
 
 func NewEmptyServiceApiContext() *ServiceApiContext {
@@ -485,12 +521,14 @@ func (s *ServiceApiContext) GetLbrace() antlr.Token { return s.lbrace }
 
 func (s *ServiceApiContext) GetRbrace() antlr.Token { return s.rbrace }
 
+
 func (s *ServiceApiContext) SetServiceToken(v antlr.Token) { s.serviceToken = v }
 
 func (s *ServiceApiContext) SetLbrace(v antlr.Token) { s.lbrace = v }
 
 func (s *ServiceApiContext) SetRbrace(v antlr.Token) { s.rbrace = v }
 
+
 func (s *ServiceApiContext) ServiceName() IServiceNameContext {
 	var t = s.GetTypedRuleContext(reflect.TypeOf((*IServiceNameContext)(nil)).Elem(), 0)
 
@@ -536,6 +574,7 @@ func (s *ServiceApiContext) ToStringTree(ruleNames []string, recog antlr.Recogni
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ServiceApiContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -546,11 +585,15 @@ func (s *ServiceApiContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) ServiceApi() (localctx IServiceApiContext) {
 	localctx = NewServiceApiContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 54, ApiParserParserRULE_serviceApi)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -568,7 +611,7 @@ func (p *ApiParserParser) ServiceApi() (localctx IServiceApiContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	match(p, "service")
+	match(p,"service")
 	{
 		p.SetState(252)
 
@@ -591,12 +634,14 @@ func (p *ApiParserParser) ServiceApi() (localctx IServiceApiContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
-	for ((_la)&-(0x1f+1)) == 0 && ((1<<uint(_la))&((1<<ApiParserParserATDOC)|(1<<ApiParserParserATHANDLER)|(1<<ApiParserParserATSERVER))) != 0 {
+
+	for (((_la) & -(0x1f+1)) == 0 && ((1 << uint(_la)) & ((1 << ApiParserParserATDOC) | (1 << ApiParserParserATHANDLER) | (1 << ApiParserParserATSERVER))) != 0) {
 		{
 			p.SetState(255)
 			p.ServiceRoute()
 		}
 
+
 		p.SetState(260)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
@@ -609,5 +654,7 @@ func (p *ApiParserParser) ServiceApi() (localctx IServiceApiContext) {
 		localctx.(*ServiceApiContext).rbrace = _m
 	}
 
+
+
 	return localctx
 }
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_parser7.go b/tools/goctl/api/parser/g4/gen/api/apiparser_parser7.go
index e8fa8313..1c6fb09e 100755
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_parser7.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_parser7.go
@@ -10,6 +10,7 @@ import (
 // The apiparser_parser.go file was split into multiple files because it
 // was too large and caused a possible memory overflow during goctl installation.
 
+
 // IServiceRouteContext is an interface to support dynamic dispatch.
 type IServiceRouteContext interface {
 	antlr.ParserRuleContext
@@ -96,6 +97,7 @@ func (s *ServiceRouteContext) ToStringTree(ruleNames []string, recog antlr.Recog
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ServiceRouteContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -106,11 +108,15 @@ func (s *ServiceRouteContext) Accept(visitor antlr.ParseTreeVisitor) interface{}
 	}
 }
 
+
+
+
 func (p *ApiParserParser) ServiceRoute() (localctx IServiceRouteContext) {
 	localctx = NewServiceRouteContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 56, ApiParserParserRULE_serviceRoute)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -132,6 +138,7 @@ func (p *ApiParserParser) ServiceRoute() (localctx IServiceRouteContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	if _la == ApiParserParserATDOC {
 		{
 			p.SetState(263)
@@ -149,12 +156,15 @@ func (p *ApiParserParser) ServiceRoute() (localctx IServiceRouteContext) {
 			p.AtServer()
 		}
 
+
 	case ApiParserParserATHANDLER:
 		{
 			p.SetState(267)
 			p.AtHandler()
 		}
 
+
+
 	default:
 		panic(antlr.NewNoViableAltException(p, nil, nil, nil, nil, nil))
 	}
@@ -163,9 +173,12 @@ func (p *ApiParserParser) ServiceRoute() (localctx IServiceRouteContext) {
 		p.Route()
 	}
 
+
+
 	return localctx
 }
 
+
 // IAtDocContext is an interface to support dynamic dispatch.
 type IAtDocContext interface {
 	antlr.ParserRuleContext
@@ -174,16 +187,18 @@ type IAtDocContext interface {
 	GetParser() antlr.Parser
 
 	// GetLp returns the lp token.
-	GetLp() antlr.Token
+	GetLp() antlr.Token 
 
 	// GetRp returns the rp token.
-	GetRp() antlr.Token
+	GetRp() antlr.Token 
+
 
 	// SetLp sets the lp token.
-	SetLp(antlr.Token)
+	SetLp(antlr.Token) 
 
 	// SetRp sets the rp token.
-	SetRp(antlr.Token)
+	SetRp(antlr.Token) 
+
 
 	// IsAtDocContext differentiates from other interfaces.
 	IsAtDocContext()
@@ -192,8 +207,8 @@ type IAtDocContext interface {
 type AtDocContext struct {
 	*antlr.BaseParserRuleContext
 	parser antlr.Parser
-	lp     antlr.Token
-	rp     antlr.Token
+	lp antlr.Token
+	rp antlr.Token
 }
 
 func NewEmptyAtDocContext() *AtDocContext {
@@ -222,10 +237,12 @@ func (s *AtDocContext) GetLp() antlr.Token { return s.lp }
 
 func (s *AtDocContext) GetRp() antlr.Token { return s.rp }
 
+
 func (s *AtDocContext) SetLp(v antlr.Token) { s.lp = v }
 
 func (s *AtDocContext) SetRp(v antlr.Token) { s.rp = v }
 
+
 func (s *AtDocContext) ATDOC() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserATDOC, 0)
 }
@@ -265,6 +282,7 @@ func (s *AtDocContext) ToStringTree(ruleNames []string, recog antlr.Recognizer)
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *AtDocContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -275,11 +293,15 @@ func (s *AtDocContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) AtDoc() (localctx IAtDocContext) {
 	localctx = NewAtDocContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 58, ApiParserParserRULE_atDoc)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -305,6 +327,7 @@ func (p *ApiParserParser) AtDoc() (localctx IAtDocContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	if _la == ApiParserParserT__1 {
 		{
 			p.SetState(273)
@@ -329,17 +352,22 @@ func (p *ApiParserParser) AtDoc() (localctx IAtDocContext) {
 				p.KvLit()
 			}
 
+
 			p.SetState(279)
 			p.GetErrorHandler().Sync(p)
 			_la = p.GetTokenStream().LA(1)
 		}
 
+
+
 	case ApiParserParserSTRING:
 		{
 			p.SetState(281)
 			p.Match(ApiParserParserSTRING)
 		}
 
+
+
 	default:
 		panic(antlr.NewNoViableAltException(p, nil, nil, nil, nil, nil))
 	}
@@ -347,6 +375,7 @@ func (p *ApiParserParser) AtDoc() (localctx IAtDocContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	if _la == ApiParserParserT__2 {
 		{
 			p.SetState(284)
@@ -358,9 +387,12 @@ func (p *ApiParserParser) AtDoc() (localctx IAtDocContext) {
 
 	}
 
+
+
 	return localctx
 }
 
+
 // IAtHandlerContext is an interface to support dynamic dispatch.
 type IAtHandlerContext interface {
 	antlr.ParserRuleContext
@@ -415,6 +447,7 @@ func (s *AtHandlerContext) ToStringTree(ruleNames []string, recog antlr.Recogniz
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *AtHandlerContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -425,6 +458,9 @@ func (s *AtHandlerContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) AtHandler() (localctx IAtHandlerContext) {
 	localctx = NewAtHandlerContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 60, ApiParserParserRULE_atHandler)
@@ -455,9 +491,12 @@ func (p *ApiParserParser) AtHandler() (localctx IAtHandlerContext) {
 		p.Match(ApiParserParserID)
 	}
 
+
+
 	return localctx
 }
 
+
 // IRouteContext is an interface to support dynamic dispatch.
 type IRouteContext interface {
 	antlr.ParserRuleContext
@@ -466,16 +505,12 @@ type IRouteContext interface {
 	GetParser() antlr.Parser
 
 	// GetHttpMethod returns the httpMethod token.
-	GetHttpMethod() antlr.Token
+	GetHttpMethod() antlr.Token 
 
-	// GetReturnToken returns the returnToken token.
-	GetReturnToken() antlr.Token
 
 	// SetHttpMethod sets the httpMethod token.
-	SetHttpMethod(antlr.Token)
+	SetHttpMethod(antlr.Token) 
 
-	// SetReturnToken sets the returnToken token.
-	SetReturnToken(antlr.Token)
 
 	// GetRequest returns the request rule contexts.
 	GetRequest() IBodyContext
@@ -483,23 +518,24 @@ type IRouteContext interface {
 	// GetResponse returns the response rule contexts.
 	GetResponse() IReplybodyContext
 
+
 	// SetRequest sets the request rule contexts.
 	SetRequest(IBodyContext)
 
 	// SetResponse sets the response rule contexts.
 	SetResponse(IReplybodyContext)
 
+
 	// IsRouteContext differentiates from other interfaces.
 	IsRouteContext()
 }
 
 type RouteContext struct {
 	*antlr.BaseParserRuleContext
-	parser      antlr.Parser
-	httpMethod  antlr.Token
-	request     IBodyContext
-	returnToken antlr.Token
-	response    IReplybodyContext
+	parser antlr.Parser
+	httpMethod antlr.Token
+	request IBodyContext 
+	response IReplybodyContext 
 }
 
 func NewEmptyRouteContext() *RouteContext {
@@ -526,20 +562,20 @@ func (s *RouteContext) GetParser() antlr.Parser { return s.parser }
 
 func (s *RouteContext) GetHttpMethod() antlr.Token { return s.httpMethod }
 
-func (s *RouteContext) GetReturnToken() antlr.Token { return s.returnToken }
 
 func (s *RouteContext) SetHttpMethod(v antlr.Token) { s.httpMethod = v }
 
-func (s *RouteContext) SetReturnToken(v antlr.Token) { s.returnToken = v }
 
 func (s *RouteContext) GetRequest() IBodyContext { return s.request }
 
 func (s *RouteContext) GetResponse() IReplybodyContext { return s.response }
 
+
 func (s *RouteContext) SetRequest(v IBodyContext) { s.request = v }
 
 func (s *RouteContext) SetResponse(v IReplybodyContext) { s.response = v }
 
+
 func (s *RouteContext) Path() IPathContext {
 	var t = s.GetTypedRuleContext(reflect.TypeOf((*IPathContext)(nil)).Elem(), 0)
 
@@ -550,12 +586,8 @@ func (s *RouteContext) Path() IPathContext {
 	return t.(IPathContext)
 }
 
-func (s *RouteContext) AllID() []antlr.TerminalNode {
-	return s.GetTokens(ApiParserParserID)
-}
-
-func (s *RouteContext) ID(i int) antlr.TerminalNode {
-	return s.GetToken(ApiParserParserID, i)
+func (s *RouteContext) ID() antlr.TerminalNode {
+	return s.GetToken(ApiParserParserID, 0)
 }
 
 func (s *RouteContext) Body() IBodyContext {
@@ -586,6 +618,7 @@ func (s *RouteContext) ToStringTree(ruleNames []string, recog antlr.Recognizer)
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *RouteContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -596,11 +629,15 @@ func (s *RouteContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) Route() (localctx IRouteContext) {
 	localctx = NewRouteContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 62, ApiParserParserRULE_route)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -632,13 +669,16 @@ func (p *ApiParserParser) Route() (localctx IRouteContext) {
 	}
 	p.SetState(294)
 	p.GetErrorHandler().Sync(p)
+	_la = p.GetTokenStream().LA(1)
 
-	if p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 28, p.GetParserRuleContext()) == 1 {
+
+	if _la == ApiParserParserT__1 {
 		{
 			p.SetState(293)
 
 			var _x = p.Body()
 
+
 			localctx.(*RouteContext).request = _x
 		}
 
@@ -647,30 +687,20 @@ func (p *ApiParserParser) Route() (localctx IRouteContext) {
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
-	if _la == ApiParserParserID {
+
+	if _la == ApiParserParserT__9 {
 		{
 			p.SetState(296)
 
-			var _m = p.Match(ApiParserParserID)
-
-			localctx.(*RouteContext).returnToken = _m
-		}
-
-	}
-	p.SetState(300)
-	p.GetErrorHandler().Sync(p)
-	_la = p.GetTokenStream().LA(1)
-
-	if _la == ApiParserParserT__1 {
-		{
-			p.SetState(299)
-
 			var _x = p.Replybody()
 
+
 			localctx.(*RouteContext).response = _x
 		}
 
 	}
 
+
+
 	return localctx
 }
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_parser8.go b/tools/goctl/api/parser/g4/gen/api/apiparser_parser8.go
index bad7a69b..7001fb8b 100755
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_parser8.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_parser8.go
@@ -10,6 +10,7 @@ import (
 // The apiparser_parser.go file was split into multiple files because it
 // was too large and caused a possible memory overflow during goctl installation.
 
+
 // IBodyContext is an interface to support dynamic dispatch.
 type IBodyContext interface {
 	antlr.ParserRuleContext
@@ -18,16 +19,18 @@ type IBodyContext interface {
 	GetParser() antlr.Parser
 
 	// GetLp returns the lp token.
-	GetLp() antlr.Token
+	GetLp() antlr.Token 
 
 	// GetRp returns the rp token.
-	GetRp() antlr.Token
+	GetRp() antlr.Token 
+
 
 	// SetLp sets the lp token.
-	SetLp(antlr.Token)
+	SetLp(antlr.Token) 
 
 	// SetRp sets the rp token.
-	SetRp(antlr.Token)
+	SetRp(antlr.Token) 
+
 
 	// IsBodyContext differentiates from other interfaces.
 	IsBodyContext()
@@ -36,8 +39,8 @@ type IBodyContext interface {
 type BodyContext struct {
 	*antlr.BaseParserRuleContext
 	parser antlr.Parser
-	lp     antlr.Token
-	rp     antlr.Token
+	lp antlr.Token
+	rp antlr.Token
 }
 
 func NewEmptyBodyContext() *BodyContext {
@@ -66,10 +69,12 @@ func (s *BodyContext) GetLp() antlr.Token { return s.lp }
 
 func (s *BodyContext) GetRp() antlr.Token { return s.rp }
 
+
 func (s *BodyContext) SetLp(v antlr.Token) { s.lp = v }
 
 func (s *BodyContext) SetRp(v antlr.Token) { s.rp = v }
 
+
 func (s *BodyContext) ID() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserID, 0)
 }
@@ -82,6 +87,7 @@ func (s *BodyContext) ToStringTree(ruleNames []string, recog antlr.Recognizer) s
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *BodyContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -92,11 +98,15 @@ func (s *BodyContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) Body() (localctx IBodyContext) {
 	localctx = NewBodyContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 64, ApiParserParserRULE_body)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -115,34 +125,38 @@ func (p *ApiParserParser) Body() (localctx IBodyContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(302)
+		p.SetState(299)
 
 		var _m = p.Match(ApiParserParserT__1)
 
 		localctx.(*BodyContext).lp = _m
 	}
-	p.SetState(304)
+	p.SetState(301)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
+
 	if _la == ApiParserParserID {
 		{
-			p.SetState(303)
+			p.SetState(300)
 			p.Match(ApiParserParserID)
 		}
 
 	}
 	{
-		p.SetState(306)
+		p.SetState(303)
 
 		var _m = p.Match(ApiParserParserT__2)
 
 		localctx.(*BodyContext).rp = _m
 	}
 
+
+
 	return localctx
 }
 
+
 // IReplybodyContext is an interface to support dynamic dispatch.
 type IReplybodyContext interface {
 	antlr.ParserRuleContext
@@ -150,17 +164,25 @@ type IReplybodyContext interface {
 	// GetParser returns the parser.
 	GetParser() antlr.Parser
 
+	// GetReturnToken returns the returnToken token.
+	GetReturnToken() antlr.Token 
+
 	// GetLp returns the lp token.
-	GetLp() antlr.Token
+	GetLp() antlr.Token 
 
 	// GetRp returns the rp token.
-	GetRp() antlr.Token
+	GetRp() antlr.Token 
+
+
+	// SetReturnToken sets the returnToken token.
+	SetReturnToken(antlr.Token) 
 
 	// SetLp sets the lp token.
-	SetLp(antlr.Token)
+	SetLp(antlr.Token) 
 
 	// SetRp sets the rp token.
-	SetRp(antlr.Token)
+	SetRp(antlr.Token) 
+
 
 	// IsReplybodyContext differentiates from other interfaces.
 	IsReplybodyContext()
@@ -169,8 +191,9 @@ type IReplybodyContext interface {
 type ReplybodyContext struct {
 	*antlr.BaseParserRuleContext
 	parser antlr.Parser
-	lp     antlr.Token
-	rp     antlr.Token
+	returnToken antlr.Token
+	lp antlr.Token
+	rp antlr.Token
 }
 
 func NewEmptyReplybodyContext() *ReplybodyContext {
@@ -195,14 +218,20 @@ func NewReplybodyContext(parser antlr.Parser, parent antlr.ParserRuleContext, in
 
 func (s *ReplybodyContext) GetParser() antlr.Parser { return s.parser }
 
+func (s *ReplybodyContext) GetReturnToken() antlr.Token { return s.returnToken }
+
 func (s *ReplybodyContext) GetLp() antlr.Token { return s.lp }
 
 func (s *ReplybodyContext) GetRp() antlr.Token { return s.rp }
 
+
+func (s *ReplybodyContext) SetReturnToken(v antlr.Token) { s.returnToken = v }
+
 func (s *ReplybodyContext) SetLp(v antlr.Token) { s.lp = v }
 
 func (s *ReplybodyContext) SetRp(v antlr.Token) { s.rp = v }
 
+
 func (s *ReplybodyContext) DataType() IDataTypeContext {
 	var t = s.GetTypedRuleContext(reflect.TypeOf((*IDataTypeContext)(nil)).Elem(), 0)
 
@@ -221,6 +250,7 @@ func (s *ReplybodyContext) ToStringTree(ruleNames []string, recog antlr.Recogniz
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ReplybodyContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -231,11 +261,15 @@ func (s *ReplybodyContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) Replybody() (localctx IReplybodyContext) {
 	localctx = NewReplybodyContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 66, ApiParserParserRULE_replybody)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -254,34 +288,45 @@ func (p *ApiParserParser) Replybody() (localctx IReplybodyContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(308)
+		p.SetState(305)
+
+		var _m = p.Match(ApiParserParserT__9)
+
+		localctx.(*ReplybodyContext).returnToken = _m
+	}
+	{
+		p.SetState(306)
 
 		var _m = p.Match(ApiParserParserT__1)
 
 		localctx.(*ReplybodyContext).lp = _m
 	}
-	p.SetState(310)
+	p.SetState(308)
 	p.GetErrorHandler().Sync(p)
 	_la = p.GetTokenStream().LA(1)
 
-	if ((_la)&-(0x1f+1)) == 0 && ((1<<uint(_la))&((1<<ApiParserParserT__5)|(1<<ApiParserParserT__6)|(1<<ApiParserParserT__7)|(1<<ApiParserParserINTERFACE)|(1<<ApiParserParserID))) != 0 {
+
+	if (((_la) & -(0x1f+1)) == 0 && ((1 << uint(_la)) & ((1 << ApiParserParserT__5) | (1 << ApiParserParserT__6) | (1 << ApiParserParserT__7) | (1 << ApiParserParserINTERFACE) | (1 << ApiParserParserID))) != 0) {
 		{
-			p.SetState(309)
+			p.SetState(307)
 			p.DataType()
 		}
 
 	}
 	{
-		p.SetState(312)
+		p.SetState(310)
 
 		var _m = p.Match(ApiParserParserT__2)
 
 		localctx.(*ReplybodyContext).rp = _m
 	}
 
+
+
 	return localctx
 }
 
+
 // IKvLitContext is an interface to support dynamic dispatch.
 type IKvLitContext interface {
 	antlr.ParserRuleContext
@@ -290,16 +335,18 @@ type IKvLitContext interface {
 	GetParser() antlr.Parser
 
 	// GetKey returns the key token.
-	GetKey() antlr.Token
+	GetKey() antlr.Token 
 
 	// GetValue returns the value token.
-	GetValue() antlr.Token
+	GetValue() antlr.Token 
+
 
 	// SetKey sets the key token.
-	SetKey(antlr.Token)
+	SetKey(antlr.Token) 
 
 	// SetValue sets the value token.
-	SetValue(antlr.Token)
+	SetValue(antlr.Token) 
+
 
 	// IsKvLitContext differentiates from other interfaces.
 	IsKvLitContext()
@@ -308,8 +355,8 @@ type IKvLitContext interface {
 type KvLitContext struct {
 	*antlr.BaseParserRuleContext
 	parser antlr.Parser
-	key    antlr.Token
-	value  antlr.Token
+	key antlr.Token
+	value antlr.Token
 }
 
 func NewEmptyKvLitContext() *KvLitContext {
@@ -338,10 +385,12 @@ func (s *KvLitContext) GetKey() antlr.Token { return s.key }
 
 func (s *KvLitContext) GetValue() antlr.Token { return s.value }
 
+
 func (s *KvLitContext) SetKey(v antlr.Token) { s.key = v }
 
 func (s *KvLitContext) SetValue(v antlr.Token) { s.value = v }
 
+
 func (s *KvLitContext) ID() antlr.TerminalNode {
 	return s.GetToken(ApiParserParserID, 0)
 }
@@ -358,6 +407,7 @@ func (s *KvLitContext) ToStringTree(ruleNames []string, recog antlr.Recognizer)
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *KvLitContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -368,6 +418,9 @@ func (s *KvLitContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) KvLit() (localctx IKvLitContext) {
 	localctx = NewKvLitContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 68, ApiParserParserRULE_kvLit)
@@ -390,7 +443,7 @@ func (p *ApiParserParser) KvLit() (localctx IKvLitContext) {
 
 	p.EnterOuterAlt(localctx, 1)
 	{
-		p.SetState(314)
+		p.SetState(312)
 
 		var _m = p.Match(ApiParserParserID)
 
@@ -398,16 +451,19 @@ func (p *ApiParserParser) KvLit() (localctx IKvLitContext) {
 	}
 	checkKeyValue(p)
 	{
-		p.SetState(316)
+		p.SetState(314)
 
 		var _m = p.Match(ApiParserParserLINE_VALUE)
 
 		localctx.(*KvLitContext).value = _m
 	}
 
+
+
 	return localctx
 }
 
+
 // IServiceNameContext is an interface to support dynamic dispatch.
 type IServiceNameContext interface {
 	antlr.ParserRuleContext
@@ -462,6 +518,7 @@ func (s *ServiceNameContext) ToStringTree(ruleNames []string, recog antlr.Recogn
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *ServiceNameContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -472,11 +529,15 @@ func (s *ServiceNameContext) Accept(visitor antlr.ParseTreeVisitor) interface{}
 	}
 }
 
+
+
+
 func (p *ApiParserParser) ServiceName() (localctx IServiceNameContext) {
 	localctx = NewServiceNameContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 70, ApiParserParserRULE_serviceName)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -494,34 +555,39 @@ func (p *ApiParserParser) ServiceName() (localctx IServiceNameContext) {
 	}()
 
 	p.EnterOuterAlt(localctx, 1)
-	p.SetState(322)
+	p.SetState(320)
 	p.GetErrorHandler().Sync(p)
 
 	for ok := true; ok; ok = _la == ApiParserParserID {
 		{
-			p.SetState(318)
+			p.SetState(316)
 			p.Match(ApiParserParserID)
 		}
-		p.SetState(320)
+		p.SetState(318)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 
-		if _la == ApiParserParserT__9 {
+
+		if _la == ApiParserParserT__10 {
 			{
-				p.SetState(319)
-				p.Match(ApiParserParserT__9)
+				p.SetState(317)
+				p.Match(ApiParserParserT__10)
 			}
 
 		}
 
-		p.SetState(324)
+
+		p.SetState(322)
 		p.GetErrorHandler().Sync(p)
 		_la = p.GetTokenStream().LA(1)
 	}
 
+
+
 	return localctx
 }
 
+
 // IPathContext is an interface to support dynamic dispatch.
 type IPathContext interface {
 	antlr.ParserRuleContext
@@ -576,6 +642,7 @@ func (s *PathContext) ToStringTree(ruleNames []string, recog antlr.Recognizer) s
 	return antlr.TreesStringTree(s, ruleNames, recog)
 }
 
+
 func (s *PathContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	switch t := visitor.(type) {
 	case ApiParserVisitor:
@@ -586,11 +653,15 @@ func (s *PathContext) Accept(visitor antlr.ParseTreeVisitor) interface{} {
 	}
 }
 
+
+
+
 func (p *ApiParserParser) Path() (localctx IPathContext) {
 	localctx = NewPathContext(p, p.GetParserRuleContext(), p.GetState())
 	p.EnterRule(localctx, 72, ApiParserParserRULE_path)
 	var _la int
 
+
 	defer func() {
 		p.ExitRule()
 	}()
@@ -607,91 +678,103 @@ func (p *ApiParserParser) Path() (localctx IPathContext) {
 		}
 	}()
 
-	p.SetState(346)
+	p.SetState(344)
 	p.GetErrorHandler().Sync(p)
-	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 39, p.GetParserRuleContext()) {
+	switch p.GetInterpreter().AdaptivePredict(p.GetTokenStream(), 38, p.GetParserRuleContext()) {
 	case 1:
 		p.EnterOuterAlt(localctx, 1)
-		p.SetState(341)
+		p.SetState(339)
 		p.GetErrorHandler().Sync(p)
 
-		for ok := true; ok; ok = _la == ApiParserParserT__10 || _la == ApiParserParserT__11 {
-			p.SetState(341)
+		for ok := true; ok; ok = _la == ApiParserParserT__11 || _la == ApiParserParserT__12 {
+			p.SetState(339)
 			p.GetErrorHandler().Sync(p)
 
 			switch p.GetTokenStream().LA(1) {
-			case ApiParserParserT__10:
-				{
-					p.SetState(326)
-					p.Match(ApiParserParserT__10)
-				}
-
-				{
-					p.SetState(327)
-					p.Match(ApiParserParserID)
-				}
-				p.SetState(332)
-				p.GetErrorHandler().Sync(p)
-				_la = p.GetTokenStream().LA(1)
-
-				for _la == ApiParserParserT__9 {
-					{
-						p.SetState(328)
-						p.Match(ApiParserParserT__9)
-					}
-					{
-						p.SetState(329)
-						p.Match(ApiParserParserID)
-					}
-
-					p.SetState(334)
-					p.GetErrorHandler().Sync(p)
-					_la = p.GetTokenStream().LA(1)
-				}
-
 			case ApiParserParserT__11:
 				{
-					p.SetState(335)
+					p.SetState(324)
 					p.Match(ApiParserParserT__11)
 				}
 
 				{
-					p.SetState(336)
+					p.SetState(325)
 					p.Match(ApiParserParserID)
 				}
-				p.SetState(339)
+				p.SetState(330)
 				p.GetErrorHandler().Sync(p)
 				_la = p.GetTokenStream().LA(1)
 
-				if _la == ApiParserParserT__9 {
+
+				for _la == ApiParserParserT__10 {
 					{
-						p.SetState(337)
-						p.Match(ApiParserParserT__9)
+						p.SetState(326)
+						p.Match(ApiParserParserT__10)
 					}
 					{
-						p.SetState(338)
+						p.SetState(327)
+						p.Match(ApiParserParserID)
+					}
+
+
+					p.SetState(332)
+					p.GetErrorHandler().Sync(p)
+					_la = p.GetTokenStream().LA(1)
+				}
+
+
+
+
+			case ApiParserParserT__12:
+				{
+					p.SetState(333)
+					p.Match(ApiParserParserT__12)
+				}
+
+				{
+					p.SetState(334)
+					p.Match(ApiParserParserID)
+				}
+				p.SetState(337)
+				p.GetErrorHandler().Sync(p)
+				_la = p.GetTokenStream().LA(1)
+
+
+				if _la == ApiParserParserT__10 {
+					{
+						p.SetState(335)
+						p.Match(ApiParserParserT__10)
+					}
+					{
+						p.SetState(336)
 						p.Match(ApiParserParserID)
 					}
 
 				}
 
+
+
+
+
 			default:
 				panic(antlr.NewNoViableAltException(p, nil, nil, nil, nil, nil))
 			}
 
-			p.SetState(343)
+			p.SetState(341)
 			p.GetErrorHandler().Sync(p)
 			_la = p.GetTokenStream().LA(1)
 		}
 
+
 	case 2:
 		p.EnterOuterAlt(localctx, 2)
 		{
-			p.SetState(345)
-			p.Match(ApiParserParserT__10)
+			p.SetState(343)
+			p.Match(ApiParserParserT__11)
 		}
 
 	}
 
+
 	return localctx
 }
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_parser9.go b/tools/goctl/api/parser/g4/gen/api/apiparser_parser9.go
index e5272afe..d974c5ae 100755
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_parser9.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_parser9.go
@@ -10,14 +10,14 @@ import (
 // The apiparser_parser.go file was split into multiple files because it
 // was too large and caused a possible memory overflow during goctl installation.
 
+
 func (p *ApiParserParser) Sempred(localctx antlr.RuleContext, ruleIndex, predIndex int) bool {
 	switch ruleIndex {
 	case 18:
-		var t *FieldContext = nil
-		if localctx != nil {
-			t = localctx.(*FieldContext)
-		}
-		return p.Field_Sempred(t, predIndex)
+			var t *FieldContext = nil
+			if localctx != nil { t = localctx.(*FieldContext) }
+			return p.Field_Sempred(t, predIndex)
+
 
 	default:
 		panic("No predicate with index: " + fmt.Sprint(ruleIndex))
@@ -27,9 +27,11 @@ func (p *ApiParserParser) Sempred(localctx antlr.RuleContext, ruleIndex, predInd
 func (p *ApiParserParser) Field_Sempred(localctx antlr.RuleContext, predIndex int) bool {
 	switch predIndex {
 	case 0:
-		return isNormal(p)
+			return isNormal(p)
 
 	default:
 		panic("No predicate with index: " + fmt.Sprint(predIndex))
 	}
 }
+
+
diff --git a/tools/goctl/api/parser/g4/gen/api/apiparser_visitor.go b/tools/goctl/api/parser/g4/gen/api/apiparser_visitor.go
index 6a7edca9..c99b5b9d 100644
--- a/tools/goctl/api/parser/g4/gen/api/apiparser_visitor.go
+++ b/tools/goctl/api/parser/g4/gen/api/apiparser_visitor.go
@@ -1,6 +1,5 @@
 package api // ApiParser
 import "github.com/zeromicro/antlr"
-
 // A complete Visitor for a parse tree produced by ApiParserParser.
 type ApiParserVisitor interface {
 	antlr.ParseTreeVisitor
@@ -115,4 +114,5 @@ type ApiParserVisitor interface {
 
 	// Visit a parse tree produced by ApiParserParser#path.
 	VisitPath(ctx *PathContext) interface{}
-}
+
+}
\ No newline at end of file
diff --git a/tools/goctl/api/parser/g4/test/service_test.go b/tools/goctl/api/parser/g4/test/service_test.go
index 366b2e69..6be8b274 100644
--- a/tools/goctl/api/parser/g4/test/service_test.go
+++ b/tools/goctl/api/parser/g4/test/service_test.go
@@ -164,8 +164,8 @@ func TestRoute(t *testing.T) {
 		_, err = parser.Accept(fn, `post foo/bar`)
 		assert.Error(t, err)
 
-		_, err = parser.Accept(fn, `post /foo/bar return (Bar)`)
-		assert.Error(t, err)
+		_, err = parser.Accept(fn, `post /foo/bar returns (Bar)`)
+		assert.Nil(t, err)
 
 		_, err = parser.Accept(fn, ` /foo/bar returns (Bar)`)
 		assert.Error(t, err)