protected override void CacheMetadata(CodeActivityMetadata metadata)
{
UnaryExpressionHelper.OnGetArguments(metadata, this.Operand);
if (_checkedOperation)
{
EnsureOperationFunction(metadata, ref s_checkedOperationFunction, ExpressionType.ConvertChecked);
}
else
{
EnsureOperationFunction(metadata, ref s_uncheckedOperationFunction, ExpressionType.Convert);
}
}
protected override void CacheMetadata(CodeActivityMetadata metadata)
{
UnaryExpressionHelper.OnGetArguments(metadata, this.Operand);
if (s_operationFunction == null)
{
ValidationError validationError;
if (!UnaryExpressionHelper.TryGenerateLinqDelegate(ExpressionType.Not, out s_operationFunction, out validationError))
{
metadata.AddValidationError(validationError);
}
}
}
private void EnsureOperationFunction(CodeActivityMetadata metadata,
ref Func <TOperand, TResult> operationFunction,
ExpressionType operatorType)
{
if (operationFunction == null)
{
ValidationError validationError;
if (!UnaryExpressionHelper.TryGenerateLinqDelegate(
operatorType,
out operationFunction,
out validationError))
{
metadata.AddValidationError(validationError);
}
}
}
