public static ConstantValue CreateSizeOf(SpecialType st)
{
int size = st.SizeInBytes();
return((size == 0) ? ConstantValue.NotAvailable : ConstantValue.Create(size));
}
internal ConstantValue DecodeDateTimeConstantValue()
{
return(ConstantValue.Create(new DateTime(this.CommonConstructorArguments[0].DecodeValue <long>(SpecialType.System_Int64))));
}
private string DisplaySignedEnumConstant(SpecialType specialType, long constantToDecode, string typeName)
{
// Specified valueConstant might have an exact matching enum field
// or it might be a bitwise Or of multiple enum fields.
// For the later case, we keep track of the current value of
// bitwise Or of possible enum fields.
long curValue = 0;
// Initialize the value string to empty
PooledStringBuilder pooledBuilder = null;
StringBuilder valueStringBuilder = null;
// Iterate through all the constant members in the enum type
ImmutableArray <Symbol> members = this.Type.GetMembers();
foreach (Symbol member in members)
{
var field = member as FieldSymbol;
if ((object)field != null && field.HasConstantValue)
{
ConstantValue memberConstant = ConstantValue.Create(field.ConstantValue, specialType);
long memberValue = memberConstant.Int64Value;
// Do we have an exact matching enum field
if (memberValue == constantToDecode)
{
if (pooledBuilder != null)
{
pooledBuilder.Free();
}
return(typeName + "." + field.Name);
}
// specifiedValue might be a bitwise Or of multiple enum fields
// Is the current member included in the specified value?
if ((memberValue & constantToDecode) == memberValue)
{
// update the current value
curValue = curValue | memberValue;
if (valueStringBuilder == null)
{
pooledBuilder = PooledStringBuilder.GetInstance();
valueStringBuilder = pooledBuilder.Builder;
}
else
{
valueStringBuilder.Append(" | ");
}
valueStringBuilder.Append(typeName);
valueStringBuilder.Append(".");
valueStringBuilder.Append(field.Name);
}
}
}
if (pooledBuilder != null)
{
if (curValue == constantToDecode)
{
// return decoded enum constant
return(pooledBuilder.ToStringAndFree());
}
// Unable to decode the enum constant
pooledBuilder.Free();
}
// Unable to decode the enum constant, just display the integral value
return(this.Value.ToString());
}
