diff --git a/chore/_xtool/llcppsigfetch/llcppsigfetch.go b/chore/_xtool/llcppsigfetch/llcppsigfetch.go
index 944ce300..61b12cf8 100644
--- a/chore/_xtool/llcppsigfetch/llcppsigfetch.go
+++ b/chore/_xtool/llcppsigfetch/llcppsigfetch.go
@@ -137,7 +137,7 @@ func runExtract() {
 	check(err)
 	_, err = converter.Convert()
 	check(err)
-	result := converter.MarshalASTFiles()
+	result := converter.MarshalOutputASTFiles()
 	cstr := result.Print()
 	c.Printf(cstr)
 	cjson.FreeCStr(cstr)
diff --git a/chore/_xtool/llcppsigfetch/parse/cvt.go b/chore/_xtool/llcppsigfetch/parse/cvt.go
index ef32e700..c77863e3 100644
--- a/chore/_xtool/llcppsigfetch/parse/cvt.go
+++ b/chore/_xtool/llcppsigfetch/parse/cvt.go
@@ -872,6 +872,10 @@ func (ct *Converter) MarshalASTFiles() *cjson.JSON {
 	return MarshalASTFiles(ct.Files)
 }
 
+func (ct *Converter) MarshalOutputASTFiles() *cjson.JSON {
+	return MarshalOutputASTFiles(ct.Files)
+}
+
 func IsExplicitSigned(t clang.Type) bool {
 	return t.Kind == clang.TypeCharS || t.Kind == clang.TypeSChar
 }
diff --git a/chore/_xtool/llcppsigfetch/parse/dump.go b/chore/_xtool/llcppsigfetch/parse/dump.go
index c235c4f2..553de95c 100644
--- a/chore/_xtool/llcppsigfetch/parse/dump.go
+++ b/chore/_xtool/llcppsigfetch/parse/dump.go
@@ -6,6 +6,18 @@ import (
 	"github.com/goplus/llgo/chore/llcppg/ast"
 )
 
+func MarshalOutputASTFiles(files map[string]*ast.File) *cjson.JSON {
+	root := cjson.Array()
+	for path, file := range files {
+		f := cjson.Object()
+		path := cjson.String(c.AllocaCStr(path))
+		f.SetItem(c.Str("path"), path)
+		f.SetItem(c.Str("doc"), MarshalASTFile(file))
+		root.AddItem(f)
+	}
+	return root
+}
+
 func MarshalASTFiles(files map[string]*ast.File) *cjson.JSON {
 	root := cjson.Object()
 	for path, file := range files {
diff --git a/chore/_xtool/llcppsigfetch/parse/parse.go b/chore/_xtool/llcppsigfetch/parse/parse.go
index b86281e1..90684c80 100644
--- a/chore/_xtool/llcppsigfetch/parse/parse.go
+++ b/chore/_xtool/llcppsigfetch/parse/parse.go
@@ -3,7 +3,6 @@ package parse
 import (
 	"errors"
 
-	"github.com/goplus/llgo/c"
 	"github.com/goplus/llgo/c/cjson"
 	"github.com/goplus/llgo/chore/llcppg/ast"
 )
@@ -21,15 +20,7 @@ func NewContext(isCpp bool) *Context {
 }
 
 func (p *Context) Output() *cjson.JSON {
-	root := cjson.Array()
-	for path, file := range p.Files {
-		f := cjson.Object()
-		path := cjson.String(c.AllocaCStr(path))
-		f.SetItem(c.Str("path"), path)
-		f.SetItem(c.Str("doc"), MarshalASTFile(file))
-		root.AddItem(f)
-	}
-	return root
+	return MarshalOutputASTFiles(p.Files)
 }
 
 // ProcessFiles processes the given files and adds them to the context