public SerializableExpression TryConvert(Expression expression)
{
if (expression == null)
{
return(null);
}
else if (serialized.ContainsKey(expression))
{
/* Caching is required to maintain object references during serialization.
* See the comments on SerializableExpression.ConvertWithCache for more info.
*/
return(serialized[expression]);
}
else if ((methodCall = expression as MethodCallExpression) != null)
{
return(serialized[expression] = new SerializableMethodCallExpression(methodCall, this));
}
else if ((lambda = expression as LambdaExpression) != null)
{
return(serialized[expression] = new SerializableLambdaExpression(lambda, this));
}
else if ((constant = expression as ConstantExpression) != null)
{
return(serialized[expression] = new SerializableConstantExpression(constant));
}
else if ((member = expression as MemberExpression) != null)
{
return(serialized[expression] = new SerializableMemberExpression(member, this));
}
else if ((binary = expression as BinaryExpression) != null)
{
return(serialized[expression] = new SerializableBinaryExpression(binary, this));
}
else if ((block = expression as BlockExpression) != null)
{
return(serialized[expression] = new SerializableBlockExpression(block, this));
}
else if ((conditional = expression as ConditionalExpression) != null)
{
return(serialized[expression] = new SerializableConditionalExpression(conditional, this));
}
else if ((@default = expression as DefaultExpression) != null)
{
return(serialized[expression] = new SerializableDefaultExpression(@default));
}
else if ((@goto = expression as GotoExpression) != null)
{
return(serialized[expression] = new SerializableGotoExpression(@goto, this));
}
else if ((index = expression as IndexExpression) != null)
{
return(serialized[expression] = new SerializableIndexExpression(index, this));
}
else if ((invocation = expression as InvocationExpression) != null)
{
return(serialized[expression] = new SerializableInvocationExpression(invocation, this));
}
else if ((label = expression as LabelExpression) != null)
{
return(serialized[expression] = new SerializableLabelExpression(label, this));
}
else if ((listInit = expression as ListInitExpression) != null)
{
return(serialized[expression] = new SerializableListInitExpression(listInit, this));
}
else if ((loop = expression as LoopExpression) != null)
{
return(serialized[expression] = new SerializableLoopExpression(loop, this));
}
else if ((memberInit = expression as MemberInitExpression) != null)
{
return(serialized[expression] = new SerializableMemberInitExpression(memberInit, this));
}
else if ((newArray = expression as NewArrayExpression) != null)
{
return(serialized[expression] = new SerializableNewArrayExpression(newArray, this));
}
else if ((@new = expression as NewExpression) != null)
{
return(serialized[expression] = new SerializableNewExpression(@new, this));
}
else if ((parameter = expression as ParameterExpression) != null)
{
return(serialized[expression] = new SerializableParameterExpression(parameter));
}
else if ((runtimeVariables = expression as RuntimeVariablesExpression) != null)
{
return(serialized[expression] = new SerializableRuntimeVariablesExpression(runtimeVariables, this));
}
else if ((@switch = expression as SwitchExpression) != null)
{
return(serialized[expression] = new SerializableSwitchExpression(@switch, this));
}
else if ((@try = expression as TryExpression) != null)
{
return(serialized[expression] = new SerializableTryExpression(@try, this));
}
else if ((typeBinary = expression as TypeBinaryExpression) != null)
{
return(serialized[expression] = new SerializableTypeBinaryExpression(typeBinary, this));
}
else if ((unary = expression as UnaryExpression) != null)
{
return(serialized[expression] = new SerializableUnaryExpression(unary, this));
}
else
{
throw new ArgumentOutOfRangeException("expression");
}
}
protected internal abstract void VisitUnary(SerializableUnaryExpression node);
protected internal override void VisitUnary(SerializableUnaryExpression node)
{
switch (node.NodeType)
{
case ExpressionType.TypeAs:
Out("(");
break;
case ExpressionType.Not:
Out("Not(");
break;
case ExpressionType.Negate:
case ExpressionType.NegateChecked:
Out("-");
break;
case ExpressionType.UnaryPlus:
Out("+");
break;
case ExpressionType.Quote:
break;
case ExpressionType.Throw:
Out("throw(");
break;
case ExpressionType.Increment:
Out("Increment(");
break;
case ExpressionType.Decrement:
Out("Decrement(");
break;
case ExpressionType.PreIncrementAssign:
Out("++");
break;
case ExpressionType.PreDecrementAssign:
Out("--");
break;
case ExpressionType.OnesComplement:
Out("~(");
break;
default:
Out(node.NodeType.ToString());
Out("(");
break;
}
Visit(node.Operand);
switch (node.NodeType)
{
case ExpressionType.Negate:
case ExpressionType.NegateChecked:
case ExpressionType.UnaryPlus:
case ExpressionType.PreDecrementAssign:
case ExpressionType.PreIncrementAssign:
case ExpressionType.Quote:
break;
case ExpressionType.TypeAs:
Out(" As ");
Out(node.Type.Name);
Out(")");
break;
case ExpressionType.PostIncrementAssign:
Out("++");
break;
case ExpressionType.PostDecrementAssign:
Out("--");
break;
default:
Out(")");
break;
}
}
