private static SingleLiteralElement?CreateSingle(string image)
{
if (image.EndsWith("f", StringComparison.OrdinalIgnoreCase))
{
image = image.Remove(image.Length - 1);
return(SingleLiteralElement.Parse(image));
}
return(null);
}
/// <summary>
/// Emit the load of a constant field. We can't emit a ldsfld/ldfld of a constant so we have to get its value
/// and then emit a ldc.
/// </summary>
/// <param name="fi"></param>
/// <param name="ilg"></param>
/// <param name="services"></param>
private static void EmitLiteral(System.Reflection.FieldInfo fi, FleeILGenerator ilg, IServiceProvider services)
{
object value = fi.GetValue(null);
Type t = value.GetType();
TypeCode code = Type.GetTypeCode(t);
LiteralElement elem = default(LiteralElement);
switch (code)
{
case TypeCode.Char:
case TypeCode.Byte:
case TypeCode.SByte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
elem = new Int32LiteralElement(System.Convert.ToInt32(value));
break;
case TypeCode.UInt32:
elem = new UInt32LiteralElement((UInt32)value);
break;
case TypeCode.Int64:
elem = new Int64LiteralElement((Int64)value);
break;
case TypeCode.UInt64:
elem = new UInt64LiteralElement((UInt64)value);
break;
case TypeCode.Double:
elem = new DoubleLiteralElement((double)value);
break;
case TypeCode.Single:
elem = new SingleLiteralElement((float)value);
break;
case TypeCode.Boolean:
elem = new BooleanLiteralElement((bool)value);
break;
case TypeCode.String:
elem = new StringLiteralElement((string)value);
break;
default:
elem = null;
Debug.Fail("Unsupported constant type");
break;
}
elem.Emit(ilg, services);
}
/// <summary>
/// Emit the load of a constant field.
/// </summary>
/// <remarks>
/// We can't emit a ldsfld/ldfld of a constant so we have to get its value and then emit a ldc.
/// </remarks>
/// <param name="fi"></param>
/// <param name="ilg"></param>
/// <param name="context"></param>
private static void EmitLiteral(FieldInfo fi, YaleIlGenerator ilg, ExpressionContext context)
{
var value = fi.GetValue(null);
var type = value.GetType();
var typeCode = Type.GetTypeCode(type);
LiteralElement elem;
switch (typeCode)
{
case TypeCode.Char:
case TypeCode.Byte:
case TypeCode.SByte:
case TypeCode.Int16:
case TypeCode.UInt16:
case TypeCode.Int32:
elem = new Int32LiteralElement(Convert.ToInt32(value));
break;
case TypeCode.UInt32:
elem = new UInt32LiteralElement((UInt32)value);
break;
case TypeCode.Int64:
elem = new Int64LiteralElement((Int64)value);
break;
case TypeCode.UInt64:
elem = new UInt64LiteralElement((UInt64)value);
break;
case TypeCode.Double:
elem = new DoubleLiteralElement((double)value);
break;
case TypeCode.Single:
elem = new SingleLiteralElement((float)value);
break;
case TypeCode.Boolean:
elem = new BooleanLiteralElement((bool)value);
break;
case TypeCode.String:
elem = new StringLiteralElement((string)value);
break;
default:
elem = null;
Debug.Fail("Unsupported constant type");
break;
}
elem.Emit(ilg, context);
}
private static SingleLiteralElement CreateSingle(string image, IServiceProvider services)
{
if (image.EndsWith("f", StringComparison.OrdinalIgnoreCase) == true)
{
image = image.Remove(image.Length - 1);
return(SingleLiteralElement.Parse(image, services));
}
else
{
return(null);
}
}
private static LiteralElement?CreateImplicitReal(string image)
{
var realType = builderOptions.RealLiteralDataType;
switch (realType)
{
case RealLiteralDataType.Double:
return(DoubleLiteralElement.Parse(image));
case RealLiteralDataType.Single:
return(SingleLiteralElement.Parse(image));
case RealLiteralDataType.Decimal:
return(DecimalLiteralElement.Parse(image));
default:
Debug.Fail("Unknown value");
return(null);
}
}
private static LiteralElement CreateImplicitReal(string image, IServiceProvider services)
{
ExpressionOptions options = (ExpressionOptions)services.GetService(typeof(ExpressionOptions));
RealLiteralDataType realType = options.RealLiteralDataType;
switch (realType)
{
case RealLiteralDataType.Double:
return(DoubleLiteralElement.Parse(image, services));
case RealLiteralDataType.Single:
return(SingleLiteralElement.Parse(image, services));
case RealLiteralDataType.Decimal:
return(DecimalLiteralElement.Parse(image, services));
default:
Debug.Fail("Unknown value");
return(null);
}
}
