fix: missing pkgpath when collect sub struct (cloudwego#24)

Author: AsterDY

src/compress/golang/plugin/file.go

@@ -40,7 +40,10 @@ func (i Identity) String() string {
 
 // return packagename.name
 func (i Identity) CallName() string {
-	return filepath.Base(i.PkgPath) + "." + i.Name
+	if i.PkgPath != "" {
+		return filepath.Base(i.PkgPath) + "." + i.Name
+	}
+	return i.Name
 }
 
 // Function holds the information about a function
@@ -423,7 +426,7 @@ func (p *goParser) collectTypes(ctx *fileContext, field string, typ ast.Expr, st
 			}
 			st.Methods[field] = Identity{ctx.pkgPath, mname}
 		} else {
-			var impt string
+			impt := ctx.pkgPath
 			if ty.PkgPath != "" {
 				if _, ok := ctx.sysImports[ty.PkgPath]; ok {
 					continue

src/compress/golang/plugin/go_ast_test.go

@@ -68,7 +68,7 @@ func Test_goParser_ParseRepo(t *testing.T) {
 		{
 			name: "test",
 			fields: fields{
-				homePageDir: "/Users/admin/GOPATH/work/hertz",
+				homePageDir: "../../../../testdata/golang",
 			},
 		},
 	}
@@ -80,6 +80,8 @@ func Test_goParser_ParseRepo(t *testing.T) {
 				t.Fatalf("goParser.ParseTilTheEnd() error = %v", err)
 			}
 			spew.Dump(p)
+			x := p.repo.GetType(Identity{"a.b/c/pkg/entity", "MyStruct"})
+			spew.Dump(x.InlineStruct, x.SubStruct)
 			out, fun := p.getMain(2)
 			if fun.Name != "main" {
 				t.Fail()

testdata/golang/pkg/entity/entity.go

@@ -0,0 +1,30 @@
+package entity
+
+type MyStructC struct {
+}
+
+type MyStructD struct {
+}
+
+type MyStruct struct {
+	a string
+	b string
+	c MyStructC
+	MyStructD
+}
+
+func (a MyStruct) String() string {
+	return "base struct"
+}
+
+func (c MyStructC) String() string {
+	return "I'm struct c"
+}
+
+func (c MyStructD) String() string {
+	return "I'm struct d"
+}
+
+func A() {
+	return
+}