Fix issue with anonymous structures (#2186)

Co-authored-by: Lea Anthony <lea.anthony@gmail.com>

v2/internal/binding/binding_test/binding_anonymous_sub_struct_multi_level_test.go

@@ -0,0 +1,65 @@
+package binding_test
+
+type StructWithAnonymousSubMultiLevelStruct struct {
+	Name string `json:"name"`
+	Meta struct {
+		Age  int `json:"age"`
+		More struct {
+			Info       string `json:"info"`
+			MoreInMore struct {
+				Demo string `json:"demo"`
+			} `json:"more_in_more"`
+		} `json:"more"`
+	} `json:"meta"`
+}
+
+func (s StructWithAnonymousSubMultiLevelStruct) Get() StructWithAnonymousSubMultiLevelStruct {
+	return s
+}
+
+var AnonymousSubStructMultiLevelTest = BindingTest{
+	name: "StructWithAnonymousSubMultiLevelStruct",
+	structs: []interface{}{
+		&StructWithAnonymousSubMultiLevelStruct{},
+	},
+	exemptions:  nil,
+	shouldError: false,
+	want: `
+export namespace binding_test {
+	export class StructWithAnonymousSubMultiLevelStruct {
+		name: string;
+		// Go type: struct { Age int "json:\"age\""; More struct { Info string "json:\"info\""; MoreInMore struct { Demo string "json:\"demo\"" } "json:\"more_in_more\"" } "json:\"more\"" }
+		meta: any;
+	
+		static createFrom(source: any = {}) {
+			return new StructWithAnonymousSubMultiLevelStruct(source);
+		}
+	
+		constructor(source: any = {}) {
+			if ('string' === typeof source) source = JSON.parse(source);
+			this.name = source["name"];
+			this.meta = this.convertValues(source["meta"], Object);
+		}
+	
+		convertValues(a: any, classs: any, asMap: boolean = false): any {
+			if (!a) {
+				return a;
+			}
+			if (a.slice) {
+				return (a as any[]).map(elem => this.convertValues(elem, classs));
+			} else if ("object" === typeof a) {
+				if (asMap) {
+					for (const key of Object.keys(a)) {
+						a[key] = new classs(a[key]);
+					}
+					return a;
+				}
+				return new classs(a);
+			}
+			return a;
+		}
+	}
+
+}
+`,
+}

v2/internal/binding/binding_test/binding_anonymous_sub_struct_test.go

@@ -0,0 +1,59 @@
+package binding_test
+
+type StructWithAnonymousSubStruct struct {
+	Name string `json:"name"`
+	Meta struct {
+		Age int `json:"age"`
+	} `json:"meta"`
+}
+
+func (s StructWithAnonymousSubStruct) Get() StructWithAnonymousSubStruct {
+	return s
+}
+
+var AnonymousSubStructTest = BindingTest{
+	name: "StructWithAnonymousSubStruct",
+	structs: []interface{}{
+		&StructWithAnonymousSubStruct{},
+	},
+	exemptions:  nil,
+	shouldError: false,
+	want: `
+export namespace binding_test {
+	export class StructWithAnonymousSubStruct {
+		name: string;
+		// Go type: struct { Age int "json:\"age\"" }
+		meta: any;
+	
+		static createFrom(source: any = {}) {
+			return new StructWithAnonymousSubStruct(source);
+		}
+	
+		constructor(source: any = {}) {
+			if ('string' === typeof source) source = JSON.parse(source);
+			this.name = source["name"];
+			this.meta = this.convertValues(source["meta"], Object);
+		}
+	
+		convertValues(a: any, classs: any, asMap: boolean = false): any {
+			if (!a) {
+				return a;
+			}
+			if (a.slice) {
+				return (a as any[]).map(elem => this.convertValues(elem, classs));
+			} else if ("object" === typeof a) {
+				if (asMap) {
+					for (const key of Object.keys(a)) {
+						a[key] = new classs(a[key]);
+					}
+					return a;
+				}
+				return new classs(a);
+			}
+			return a;
+		}
+	}
+
+}
+`,
+}

v2/internal/binding/binding_test/binding_emptystruct_test.go

@@ -27,7 +27,7 @@ export namespace binding_test {
 		}
 		constructor(source: any = {}) {
 			if ('string' === typeof source) source = JSON.parse(source);
-			this.empty = this.convertValues(source["empty"], null);
+			this.empty = this.convertValues(source["empty"], Object);
 		}
 		convertValues(a: any, classs: any, asMap: boolean = false): any {
 			if (!a) {

v2/internal/binding/binding_test/binding_test.go

@@ -37,6 +37,8 @@ func TestBindings_GenerateModels(t *testing.T) {
 		MultistructTest,
 		EmptyStructTest,
 		GeneratedJsEntityTest,
+		AnonymousSubStructTest,
+		AnonymousSubStructMultiLevelTest,
 	}
 
 	testLogger := &logger.Logger{}

v2/internal/typescriptify/typescriptify.go

@@ -641,13 +641,19 @@ func (t *TypeScriptify) convertType(depth int, typeOf reflect.Type, customCode m
 			err = builder.AddSimpleField(jsonFieldName, field, fldOpts)
 		} else if field.Type.Kind() == reflect.Struct { // Struct:
 			t.logf(depth, "- struct %s.%s (%s)", typeOf.Name(), field.Name, field.Type.String())
-			typeScriptChunk, err := t.convertType(depth+1, field.Type, customCode)
-			if err != nil {
-				return "", err
-			}
-			if typeScriptChunk != "" {
-				result = typeScriptChunk + "\n" + result
+
+			// Anonymous structures is ignored
+			// It is possible to generate them but hard to generate correct name
+			if field.Type.Name() != "" {
+				typeScriptChunk, err := t.convertType(depth+1, field.Type, customCode)
+				if err != nil {
+					return "", err
+				}
+				if typeScriptChunk != "" {
+					result = typeScriptChunk + "\n" + result
+				}
 			}
+
 			isKnownType := t.KnownStructs.Contains(getStructFQN(field.Type.String()))
 			println("KnownStructs:", t.KnownStructs.Join("\t"))
 			println(getStructFQN(field.Type.String()))
@@ -833,16 +839,24 @@ func (t *typeScriptClassBuilder) AddEnumField(fieldName string, field reflect.St
 
 func (t *typeScriptClassBuilder) AddStructField(fieldName string, field reflect.StructField, isAnyType bool) {
 	strippedFieldName := strings.ReplaceAll(fieldName, "?", "")
-	namespace := strings.Split(field.Type.String(), ".")[0]
-	fqname := "any"
+	fqname := field.Type.Name()
 	classname := "null"
-	fqname = field.Type.Name()
+
+	namespace := strings.Split(field.Type.String(), ".")[0]
+
 	if namespace != t.namespace {
 		fqname = field.Type.String()
 	}
+
 	if !isAnyType {
 		classname = fqname
 	}
+
+	// Anonymous struct
+	if field.Type.Name() == "" {
+		classname = "Object"
+	}
+
 	t.addField(fieldName, fqname, isAnyType)
 	t.addInitializerFieldLine(strippedFieldName, fmt.Sprintf("this.convertValues(source[\"%s\"], %s)", strippedFieldName, classname))
 }