/// <summary>
/// Cria a expressão de acesso para o membro.
/// </summary>
/// <param name="token"></param>
/// <param name="instance"></param>
/// <returns></returns>
public static Expression CreateMemberAccessExpression(this IMemberAccessToken token, Expression instance)
{
System.Reflection.MemberInfo memberInfoForType = token.GetMemberInfoForType(instance.Type);
if (memberInfoForType == null)
{
throw new ArgumentException(FormatInvalidTokenErrorMessage(token, instance.Type));
}
IndexerToken indexerToken = token as IndexerToken;
if (indexerToken != null)
{
IEnumerable <Expression> indexerArguments = indexerToken.GetIndexerArguments();
return(Expression.Call(instance, (System.Reflection.MethodInfo)memberInfoForType, indexerArguments));
}
return(Expression.MakeMemberAccess(instance, memberInfoForType));
}
/// <exception cref="ArgumentException">
/// Invalid name for property or field; or indexer with the specified arguments.
/// </exception>
public static Expression CreateMemberAccessExpression(this IMemberAccessToken token, Expression instance)
{
var memberInfo = token.GetMemberInfoForType(instance.Type);
if (memberInfo == null)
{
throw new ArgumentException(FormatInvalidTokenErrorMessage(token, instance.Type));
}
var indexerToken = token as IndexerToken;
if (indexerToken != null)
{
var arguments = indexerToken.GetIndexerArguments();
return(Expression.Call(instance, (MethodInfo)memberInfo, arguments));
}
// Property or field
return(Expression.MakeMemberAccess(instance, memberInfo));
}