예제 #1
0
 private static Expression AddOptionalConvert(TypeReference closureReturnType, TypeReference bodyReturnType, Expression constructedExpression)
 {
     if (!closureReturnType.Matches(bodyReturnType))
     {
         var closureTypeEntity = closureReturnType.Entity as IType;
         var returnTypeEntity = bodyReturnType.Entity as IType;
         if (closureTypeEntity != null && returnTypeEntity != null && closureTypeEntity.IsValueType == false && returnTypeEntity.IsValueType == false)
         {
             return constructedExpression;
         }
         var convertCall = ReferenceExpression.Lift("System.Linq.Expressions.Expression.Convert");
         constructedExpression = new MethodInvocationExpression(convertCall,
             constructedExpression,
             new TypeofExpression() { Type = closureReturnType });
     }
     return constructedExpression;
 }