tons of code

kitcom/goparser.go

@@ -10,18 +10,12 @@ import (
 
 var decorComment = regexp.MustCompile(`^//\s?kittenipc:api$`)
 
-type apiStruct struct {
-	pkgName string
-	name    string
-	methods []*ast.FuncDecl
-}
-
 type GoApiParser struct {
 }
 
 func (g *GoApiParser) Parse(sourceFile string) (*Api, error) {
 
-	var apiStructs []*apiStruct
+	var api Api
 
 	fileSet := token.NewFileSet()
 	astFile, err := parser.ParseFile(fileSet, sourceFile, nil, parser.ParseComments|parser.SkipObjectResolution)
@@ -29,8 +23,6 @@ func (g *GoApiParser) Parse(sourceFile string) (*Api, error) {
 		return nil, fmt.Errorf("parse file: %w", err)
 	}
 
-	pkgName := astFile.Name.Name
-
 	for _, decl := range astFile.Decls {
 		genDecl, ok := decl.(*ast.GenDecl)
 		if !ok {
@@ -58,20 +50,15 @@ func (g *GoApiParser) Parse(sourceFile string) (*Api, error) {
 		}
 		_ = structType
 
-		apiStructs = append(apiStructs, &apiStruct{
-			name:    typeSpec.Name.Name,
-			pkgName: pkgName,
+		api.Endpoints = append(api.Endpoints, Endpoint{
+			Name: typeSpec.Name.Name,
 		})
 	}
 
-	if len(apiStructs) == 0 {
+	if len(api.Endpoints) == 0 {
 		return nil, fmt.Errorf("no api struct found")
 	}
 
-	if len(apiStructs) > 1 {
-		return nil, fmt.Errorf("multiple api struct found")
-	}
-
 	for _, decl := range astFile.Decls {
 		funcDecl, ok := decl.(*ast.FuncDecl)
 		if !ok {
@@ -99,12 +86,54 @@ func (g *GoApiParser) Parse(sourceFile string) (*Api, error) {
 			continue
 		}
 
-		for _, apiStrct := range apiStructs {
-			if recvIdent.Name == apiStrct.name && pkgName == apiStrct.pkgName {
-				apiStrct.methods = append(apiStrct.methods, funcDecl)
+		for i, endpoint := range api.Endpoints {
+			if recvIdent.Name == endpoint.Name {
+				var apiMethod Method
+				apiMethod.Name = funcDecl.Name.Name
+				for _, param := range funcDecl.Type.Params.List {
+					var apiPar Val
+					ident := param.Type.(*ast.Ident)
+					switch ident.Name {
+					case "int":
+						apiPar.Type = TInt
+					case "string":
+						apiPar.Type = TString
+					case "bool":
+						apiPar.Type = TBool
+					default:
+						return nil, fmt.Errorf("parameter type %s is not supported yet", ident.Name)
+					}
+					if len(param.Names) != 1 {
+						return nil, fmt.Errorf("all parameters in method %s should be named", apiMethod.Name)
+					}
+					apiPar.Name = param.Names[0].Name
+					apiMethod.Params = append(apiMethod.Params, apiPar)
+				}
+				for _, ret := range funcDecl.Type.Results.List {
+					var apiRet Val
+					ident := ret.Type.(*ast.Ident)
+					switch ident.Name {
+					case "int":
+						apiRet.Type = TInt
+					case "string":
+						apiRet.Type = TString
+					case "bool":
+						apiRet.Type = TBool
+					case "error":
+						// errors are processed other way
+						continue
+					default:
+						return nil, fmt.Errorf("return type %s is not supported yet", ident.Name)
+					}
+					if len(ret.Names) > 0 {
+						apiRet.Name = ret.Names[0].Name
+					}
+					apiMethod.Ret = append(apiMethod.Ret, apiRet)
+				}
+				api.Endpoints[i].Methods = append(api.Endpoints[i].Methods, apiMethod)
 			}
 		}
 	}
 
-	return nil, nil
+	return &api, nil
 }