llcppsigfetch:qualified name refer

chore/_xtool/llcppsigfetch/parse/cvt.go

@@ -507,6 +507,20 @@ func (ct *Converter) ProcessElaboratedType(t clang.Type) ast.Expr {
 		}
 	}
 
+	// qualified name
+	// todo(zzy): qualified name with tag,like struct A::B
+	if strings.Contains(typeName, "::") {
+		scopeParts := strings.Split(typeName, "::")
+		var expr ast.Expr = &ast.Ident{Name: scopeParts[0]}
+		for _, part := range scopeParts[1:] {
+			expr = &ast.ScopingExpr{
+				Parent: expr,
+				X:      &ast.Ident{Name: part},
+			}
+		}
+		return expr
+	}
+
 	return &ast.Ident{
 		Name: typeName,
 	}

chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/scope_test/llgo.expect

@@ -207,6 +207,101 @@ TestScope Case 5:
 	}
 }
 
+TestScope Case 6:
+{
+	"temp.h":	{
+		"decls":	[{
+				"Loc":	{
+					"File":	"temp.h"
+				},
+				"Doc":	{
+					"List":	[]
+				},
+				"Parent":	{
+					"X":	{
+						"Name":	"c"
+					},
+					"Parent":	{
+						"X":	{
+							"Name":	"b"
+						},
+						"Parent":	{
+							"Name":	"a"
+						}
+					}
+				},
+				"Name":	{
+					"Name":	"c"
+				},
+				"Type":	{
+					"Tag":	3,
+					"Fields":	{
+						"List":	[]
+					},
+					"Methods":	[{
+							"Loc":	{
+								"File":	"temp.h"
+							},
+							"Doc":	{
+								"List":	[]
+							},
+							"Parent":	{
+								"X":	{
+									"Name":	"c"
+								},
+								"Parent":	{
+									"X":	{
+										"Name":	"b"
+									},
+									"Parent":	{
+										"Name":	"a"
+									}
+								}
+							},
+							"Name":	{
+								"Name":	"foo"
+							},
+							"Type":	{
+								"Params":	{
+									"List":	[]
+								},
+								"Ret":	{
+									"Kind":	0,
+									"Flags":	0
+								}
+							}
+						}]
+				}
+			}, {
+				"Loc":	{
+					"File":	"temp.h"
+				},
+				"Doc":	{
+					"List":	[]
+				},
+				"Parent":	null,
+				"Name":	{
+					"Name":	"C"
+				},
+				"Type":	{
+					"X":	{
+						"Name":	"c"
+					},
+					"Parent":	{
+						"X":	{
+							"Name":	"b"
+						},
+						"Parent":	{
+							"Name":	"a"
+						}
+					}
+				}
+			}],
+		"includes":	[],
+		"macros":	[]
+	}
+}
+
 
 #stderr
 

chore/_xtool/llcppsigfetch/parse/cvt_test/decl_test/scope_test/scope.go

@@ -25,6 +25,15 @@ func TestScope() {
 			void foo(); 
 		 };
 	   	 }`,
+
+		`namespace a {
+		 namespace b {
+		 class c {
+			void foo(); 
+		 };
+		 }
+		 }
+		 typedef a::b::c C;`,
 	}
 	test.RunTest("TestScope", testCases)
 }