feat: references check

... and fixes: parse fields without tags and other logical errors

common/model.go

@@ -6,18 +6,18 @@ import (
 )
 
 type Field struct {
-	Name     string
-	Type     ast.Expr
-	Tags     *string
-	Options  []string // contains options like "autoCreateTime" or "null"
-	Params   []string // contains params like "foreignKey:CustomerId" or "constrain:OnDelete:Cascade"
-	Position token.Pos
-	Comment  string
+	Name    string
+	Type    ast.Expr
+	Tags    *string
+	Options []string // contains options like "autoCreateTime" or "null"
+	Params  []string // contains params like "foreignKey:CustomerId" or "constrain:OnDelete:Cascade"
+	Pos     token.Pos
+	Comment string
 }
 
 type Model struct {
-	Name     string
-	Fields   map[string]Field
-	Position token.Pos
-	Comment  string
+	Name    string
+	Fields  map[string]Field
+	Pos     token.Pos
+	Comment string
 }

common/modelsParser.go

@@ -0,0 +1,77 @@
+package common
+
+import (
+	"github.com/fatih/structtag"
+	"go/ast"
+	"golang.org/x/tools/go/analysis"
+	"strings"
+)
+
+func ParseModels(pass *analysis.Pass, models *map[string]Model) {
+	for _, file := range pass.Files {
+		ast.Inspect(file, func(node ast.Node) bool {
+			typeSpec, ok := node.(*ast.TypeSpec)
+			if !ok {
+				return true
+			}
+			structure, ok := typeSpec.Type.(*ast.StructType)
+			if !ok {
+				return true
+			}
+
+			if err := CheckUnnamedModel(*typeSpec); err != nil {
+				pass.Reportf(structure.Pos(), err.Error())
+				return false
+			}
+
+			var model Model
+			model.Name = typeSpec.Name.Name
+			model.Comment = typeSpec.Comment.Text()
+			model.Pos = structure.Pos()
+			model.Fields = make(map[string]Field)
+
+			for _, field := range structure.Fields.List {
+				var structField Field
+				if err := CheckUnnamedField(typeSpec.Name.Name, *field); err != nil {
+					pass.Reportf(field.Pos(), err.Error())
+					return false
+				}
+
+				structField.Name = field.Names[0].Name
+				structField.Pos = field.Pos()
+				structField.Comment = field.Comment.Text()
+				structField.Type = field.Type
+
+				if field.Tag != nil {
+					structField.Tags = &field.Tag.Value
+
+					tags, err := structtag.Parse(NormalizeStructTags(field.Tag.Value))
+					if err != nil {
+						pass.Reportf(field.Pos(), "Invalid structure tag: %s\n", err)
+						return false
+					}
+					if tags != nil {
+						gormTag, parseErr := tags.Get("gorm")
+						if gormTag != nil && parseErr == nil {
+							gormTag.Options = append([]string{gormTag.Name}, gormTag.Options...)
+							for _, opt := range gormTag.Options {
+								if strings.Contains(opt, ":") {
+									structField.Params = append(structField.Params, opt)
+								} else {
+									structField.Options = append(structField.Options, opt)
+								}
+							}
+						}
+						if parseErr != nil {
+							pass.Reportf(field.Pos(), "Invalid structure tag: %s\n", parseErr)
+							return false
+						}
+					}
+				}
+				model.Fields[structField.Name] = structField
+				(*models)[model.Name] = model
+			}
+			return false
+		})
+	}
+}

common/resolveBaseType.go

@@ -0,0 +1,21 @@
+package common
+
+import (
+	"go/ast"
+)
+
+func ResolveBaseType(expr ast.Expr) *string {
+	switch e := expr.(type) {
+	case *ast.Ident:
+		return &e.Name
+	case *ast.StarExpr:
+		return ResolveBaseType(e.X)
+	case *ast.ArrayType:
+		return ResolveBaseType(e.Elt)
+	case *ast.SelectorExpr:
+		return ResolveBaseType(e.X)
+	case *ast.ParenExpr:
+		return ResolveBaseType(e.X)
+	}
+	return nil
+}