diff --git a/chore/_xtool/llcppsigfetch/parse/cvt.go b/chore/_xtool/llcppsigfetch/parse/cvt.go
index df10cac8..ee3a2f1b 100644
--- a/chore/_xtool/llcppsigfetch/parse/cvt.go
+++ b/chore/_xtool/llcppsigfetch/parse/cvt.go
@@ -427,10 +427,15 @@ func (ct *Converter) ProcessMethods(cursor clang.Cursor) []*ast.FuncDecl {
 	return methods
 }
 
-func (ct *Converter) ProcessStructOrClass(cursor clang.Cursor, tag ast.Tag) *ast.TypeDecl {
+func (ct *Converter) ProcessRecord(cursor clang.Cursor, tag ast.Tag) *ast.TypeDecl {
+	anony := cursor.IsAnonymousRecordDecl()
 
-	name := cursor.String()
-	defer name.Dispose()
+	var name *ast.Ident
+	if anony == 0 {
+		cursorName := cursor.String()
+		defer cursorName.Dispose()
+		name = &ast.Ident{Name: c.GoString(cursorName.CStr())}
+	}
 
 	fields := ct.ProcessFieldList(cursor)
 	methods := ct.ProcessMethods(cursor)
@@ -438,7 +443,7 @@ func (ct *Converter) ProcessStructOrClass(cursor clang.Cursor, tag ast.Tag) *ast
 	decl := &ast.TypeDecl{
 		DeclBase: ct.CreateDeclBase(cursor),
 		Tag:      tag,
-		Name:     &ast.Ident{Name: c.GoString(name.CStr())},
+		Name:     name,
 		Fields:   fields,
 		Methods:  methods,
 	}
@@ -447,15 +452,15 @@ func (ct *Converter) ProcessStructOrClass(cursor clang.Cursor, tag ast.Tag) *ast
 }
 
 func (ct *Converter) ProcessStruct(cursor clang.Cursor) *ast.TypeDecl {
-	return ct.ProcessStructOrClass(cursor, ast.Struct)
+	return ct.ProcessRecord(cursor, ast.Struct)
 }
 
 func (ct *Converter) ProcessUnion(cursor clang.Cursor) *ast.TypeDecl {
-	return ct.ProcessStructOrClass(cursor, ast.Union)
+	return ct.ProcessRecord(cursor, ast.Union)
 }
 
 func (ct *Converter) ProcessClass(cursor clang.Cursor) *ast.TypeDecl {
-	return ct.ProcessStructOrClass(cursor, ast.Class)
+	return ct.ProcessRecord(cursor, ast.Class)
 }
 
 func (ct *Converter) ProcessBuiltinType(t clang.Type) *ast.BuiltinType {
diff --git a/chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/decl.go b/chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/decl.go
index ec00ba19..7b5126f7 100644
--- a/chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/decl.go
+++ b/chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/decl.go
@@ -85,6 +85,9 @@ void foo();`,
 
 func TestStructDecl() {
 	testCases := []string{
+		`struct {
+			int a;
+		};`,
 		`struct A {
 			int a;
 			int b;
@@ -103,6 +106,10 @@ func TestStructDecl() {
 
 func TestUnionDecl() {
 	testCases := []string{
+		`union {
+			int a;
+			int b;
+		};`,
 		`union A {
 			int a;
 			int b;
diff --git a/chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/llgo.expect b/chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/llgo.expect
index b97682c7..425ba1a6 100644
--- a/chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/llgo.expect
+++ b/chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/llgo.expect
@@ -958,9 +958,7 @@ TestStructDecl Case 1:
 				},
 				"Parent":	null,
 				"Tag":	0,
-				"Name":	{
-					"Name":	"A"
-				},
+				"Name":	null,
 				"Fields":	{
 					"List":	[{
 							"Type":	{
@@ -976,20 +974,6 @@ TestStructDecl Case 1:
 							"Names":	[{
 									"Name":	"a"
 								}]
-						}, {
-							"Type":	{
-								"Kind":	6,
-								"Flags":	0
-							},
-							"Doc":	{
-								"List":	[]
-							},
-							"Comment":	{
-								"List":	[]
-							},
-							"Names":	[{
-									"Name":	"b"
-								}]
 						}]
 				},
 				"Methods":	[]
@@ -1054,6 +1038,60 @@ TestStructDecl Case 2:
 }
 
 TestStructDecl Case 3:
+{
+	"temp.h":	{
+		"path":	"temp.h",
+		"decls":	[{
+				"Loc":	{
+					"File":	"temp.h"
+				},
+				"Doc":	{
+					"List":	[]
+				},
+				"Parent":	null,
+				"Tag":	0,
+				"Name":	{
+					"Name":	"A"
+				},
+				"Fields":	{
+					"List":	[{
+							"Type":	{
+								"Kind":	6,
+								"Flags":	0
+							},
+							"Doc":	{
+								"List":	[]
+							},
+							"Comment":	{
+								"List":	[]
+							},
+							"Names":	[{
+									"Name":	"a"
+								}]
+						}, {
+							"Type":	{
+								"Kind":	6,
+								"Flags":	0
+							},
+							"Doc":	{
+								"List":	[]
+							},
+							"Comment":	{
+								"List":	[]
+							},
+							"Names":	[{
+									"Name":	"b"
+								}]
+						}]
+				},
+				"Methods":	[]
+			}],
+		"includes":	[],
+		"macros":	[]
+	}
+}
+
+TestStructDecl Case 4:
 {
 	"temp.h":	{
 		"path":	"temp.h",
@@ -1318,6 +1356,58 @@ TestClassDecl Case 2:
 }
 
 TestUnionDecl Case 1:
+{
+	"temp.h":	{
+		"path":	"temp.h",
+		"decls":	[{
+				"Loc":	{
+					"File":	"temp.h"
+				},
+				"Doc":	{
+					"List":	[]
+				},
+				"Parent":	null,
+				"Tag":	1,
+				"Name":	null,
+				"Fields":	{
+					"List":	[{
+							"Type":	{
+								"Kind":	6,
+								"Flags":	0
+							},
+							"Doc":	{
+								"List":	[]
+							},
+							"Comment":	{
+								"List":	[]
+							},
+							"Names":	[{
+									"Name":	"a"
+								}]
+						}, {
+							"Type":	{
+								"Kind":	6,
+								"Flags":	0
+							},
+							"Doc":	{
+								"List":	[]
+							},
+							"Comment":	{
+								"List":	[]
+							},
+							"Names":	[{
+									"Name":	"b"
+								}]
+						}]
+				},
+				"Methods":	[]
+			}],
+		"includes":	[],
+		"macros":	[]
+	}
+}
+
+TestUnionDecl Case 2:
 {
 	"temp.h":	{
 		"path":	"temp.h",
diff --git a/chore/_xtool/llcppsigfetch/parse/dump.go b/chore/_xtool/llcppsigfetch/parse/dump.go
index c43951da..ce20623b 100644
--- a/chore/_xtool/llcppsigfetch/parse/dump.go
+++ b/chore/_xtool/llcppsigfetch/parse/dump.go
@@ -131,6 +131,9 @@ func MarshalASTExpr(t ast.Expr) *cjson.JSON {
 		}
 		root.SetItem(c.Str("Names"), names)
 	case *ast.Ident:
+		if d == nil {
+			return cjson.Null()
+		}
 		root.SetItem(c.Str("Name"), cjson.String(c.AllocaCStr(d.Name)))
 	case *ast.EnumItem:
 		root.SetItem(c.Str("Name"), MarshalASTExpr(d.Name))
@@ -147,6 +150,9 @@ func MarshalASTExpr(t ast.Expr) *cjson.JSON {
 		root.SetItem(c.Str("Kind"), cjson.Number(float64(d.Kind)))
 		root.SetItem(c.Str("Flags"), cjson.Number(float64(d.Flags)))
 	case *ast.Comment:
+		if d == nil {
+			return cjson.Null()
+		}
 		root.SetItem(c.Str("Text"), cjson.String(c.AllocaCStr(d.Text)))
 	case *ast.CommentGroup:
 		if d == nil {