//小数リテラル
public override bool Visit(
UnifiedFractionLiteral element, VisitorArgument arg)
{
// TODO: そのまま出力しても良いのか？
Writer.Write(element.Value.ToString("r"));
return(false);
}
public static UnifiedExpression CreateFloat(XElement node)
{
Contract.Requires(node != null);
Contract.Requires(node.Name() == "Float");
return(UnifiedFractionLiteral.Create(
double.Parse(node.Value),
UnifiedFractionLiteralKind.Double));
}
public UnifiedElement VisitPrimitiveExpression(
PrimitiveExpression prim, object data)
{
if (prim.Value == null)
{
return(UnifiedNullLiteral.Create());
}
if (prim.Value is bool)
{
return(UnifiedBooleanLiteral.Create((bool)prim.Value));
}
if (prim.Value is Int32)
{
return(UnifiedIntegerLiteral.CreateInt32((Int32)prim.Value));
}
if (prim.Value is UInt32)
{
return(UnifiedIntegerLiteral.CreateUInt32((UInt32)prim.Value));
}
if (prim.Value is Int64)
{
return(UnifiedIntegerLiteral.CreateInt64((Int64)prim.Value));
}
if (prim.Value is UInt64)
{
return(UnifiedIntegerLiteral.CreateUInt64((UInt64)prim.Value));
}
if (prim.Value is Single)
{
return(UnifiedFractionLiteral.Create(
(Single)prim.Value, UnifiedFractionLiteralKind.Single));
}
if (prim.Value is double)
{
return(UnifiedFractionLiteral.Create(
(double)prim.Value, UnifiedFractionLiteralKind.Double));
}
if (prim.Value is char)
{
return(UnifiedCharLiteral.Create(((char)prim.Value).ToString()));
}
if (prim.Value is string)
{
return(UnifiedStringLiteral.Create(prim.LiteralValue));
}
throw new NotImplementedException(
"value type is " + prim.Value.GetType());
}
public static UnifiedExpression CreateFloatingPointLiteral(
XElement node)
{
Contract.Requires(node != null);
Contract.Requires(node.Name() == "FLOATING_POINT_LITERAL");
/*
* FLOATING_POINT_LITERAL
* : ('0'..'9')+ '.' ('0'..'9')* Exponent? FloatTypeSuffix?
* | '.' ('0'..'9')+ Exponent? FloatTypeSuffix?
* | ('0'..'9')+ Exponent FloatTypeSuffix?
* | ('0'..'9')+ Exponent? FloatTypeSuffix
* ;
*/
// TODO UnifiedFractionLiteralKind.Doubleはダブルで大丈夫か？
return(UnifiedFractionLiteral.Create(
double.Parse(node.Value), UnifiedFractionLiteralKind.Double));
}
public override bool Visit(
UnifiedFractionLiteral element, VisitorArgument arg)
{
Writer.Write(element.Value.ToString("r"));
switch (element.Kind)
{
case UnifiedFractionLiteralKind.Single:
Writer.Write("f");
break;
case UnifiedFractionLiteralKind.Double:
Writer.Write("d");
break;
default:
throw new ArgumentOutOfRangeException();
}
return(false);
}
public override bool Visit(
UnifiedFractionLiteral element, VisitorArgument arg)
{
Writer.Write(element.Value.ToString("r"));
switch (element.Kind) {
case UnifiedFractionLiteralKind.Single:
Writer.Write("f");
break;
case UnifiedFractionLiteralKind.Double:
Writer.Write("d");
break;
default:
throw new ArgumentOutOfRangeException();
}
return false;
}
//小数リテラル
public override bool Visit(
UnifiedFractionLiteral element, VisitorArgument arg)
{
// TODO: そのまま出力しても良いのか？
Writer.Write(element.Value.ToString("r"));
return false;
}
public static UnifiedFractionLiteral ToLiteral(this double value)
{
return(UnifiedFractionLiteral.Create(
value, UnifiedFractionLiteralKind.Double));
}
