feat: references check

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

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
+}