protected override Expression VisitConstant(ConstantExpression node)
{
ProtoExpression proto = node.Value switch
{
char value => new ProtoCharConstantExpression(value),
sbyte value => new ProtoSByteConstantExpression(value),
byte value => new ProtoByteConstantExpression(value),
short value => new ProtoInt16ConstantExpression(value),
ushort value => new ProtoUInt16ConstantExpression(value),
int value => new ProtoInt32ConstantExpression(value),
uint value => new ProtoUInt32ConstantExpression(value),
long value => new ProtoInt64ConstantExpression(value),
ulong value => new ProtoUInt64ConstantExpression(value),
float value => new ProtoSingleConstantExpression(value),
double value => new ProtoDoubleConstantExpression(value),
decimal value => new ProtoDecimalConstantExpression(value),
DateTime value => new ProtoDateTimeConstantExpression(value),
string value => new ProtoStringConstantExpression(value),
_ => throw new NotImplementedException(),
};
_protos.Push(proto);
return(node);
}
public Expression Translate(ProtoExpression node)
{
_stack.Clear();
Visit(node);
return(_stack.Pop());
}
private ProtoExpression Visit(ProtoExpression node)
{
switch (node)
{
case ProtoConstantExpression constant:
VisitConstant(constant);
break;
default:
throw new NotSupportedException();
}
return(node);
}