/// <summary>
/// Creates a qualifier from a given input qualifier such that the resulting qualifier respects target qualifier space.
/// </summary>
public bool TryCreateQualifierForQualifierSpace(
PathTable pathTable,
LoggingContext loggingContext,
QualifierId qualifierId,
QualifierSpaceId qualifierSpaceId,
bool useDefaultsForCoercion,
out QualifierId resultingQualifierId,
out UnsupportedQualifierValue error)
{
Contract.RequiresNotNull(pathTable);
Contract.RequiresNotNull(loggingContext);
#if DEBUG
Contract.Requires(IsValidQualifierId(qualifierId));
Contract.Requires(qualifierSpaceId.IsValid);
Contract.Requires(IsValidQualifierSpaceId(qualifierSpaceId), "Id " + qualifierSpaceId.Id + " is not valid.");
#endif
Qualifier qualifier = GetQualifier(qualifierId);
QualifierSpace qualifierSpace = GetQualifierSpace(qualifierSpaceId);
Qualifier resultingQualifier;
bool success = qualifierSpace.TryCreateQualifierForQualifierSpace(
StringTable,
pathTable,
loggingContext,
qualifier,
out resultingQualifier,
out error,
useDefaultsForCoercion);
resultingQualifierId = success ? GetOrAddQualifier(resultingQualifier) : EmptyQualifierId;
return(success);
}
/// <summary>
/// Creates a qualifier from a given input qualifier such that the resulting qualifier respects this qualifier space.
/// </summary>
internal bool TryCreateQualifierForQualifierSpace(
StringTable stringTable,
PathTable pathTable,
LoggingContext loggingContext,
Qualifier currentQualifier,
out Qualifier qualifier,
out UnsupportedQualifierValue error,
bool useDefaults)
{
Contract.Requires(stringTable != null);
Contract.Requires(pathTable != null);
Contract.Requires(loggingContext != null);
StringId[] keys;
StringId[] values;
currentQualifier.GetInternalKeyValueArrays(out keys, out values);
var targetKeys = new StringId[m_keys.Length];
var targetValues = new StringId[m_keys.Length];
int qIndex = 0;
int sIndex = 0;
while (sIndex < m_keys.Length)
{
var sKey = m_keys[sIndex];
if (qIndex < keys.Length && keys[qIndex] == sKey)
{
var qValue = values[qIndex];
if (m_valueValues[sIndex].Contains(qValue))
{
targetKeys[sIndex] = keys[qIndex];
targetValues[sIndex] = qValue;
qIndex++;
sIndex++;
}
else
{
error = new UnsupportedQualifierValue
{
QualifierKey = sKey.ToString(stringTable),
InvalidValue = qValue.ToString(stringTable),
LegalValues = string.Join(", ", m_valueValues[sIndex].Select(id => id.ToString(stringTable))),
};
qualifier = Qualifier.Empty;
return(false);
}
}
else
{
// Check if we have any key from the currentQualifier left. If not, we'll 'trick' the compare below be a 'missing'
// value we can treat it to insert the default value for the remaining space keys
var compare = qIndex < keys.Length ? stringTable.OrdinalComparer.Compare(keys[qIndex], sKey) : 1;
Contract.Assume(compare != 0, "expected above equals to handle that case");
if (compare < 0)
{
// Given that the lists are sorted and the qualifier key is less than the space key, it means that key is not in the target space.
// so we can skip it.
qIndex++;
}
else
{
if (useDefaults == false)
{
qualifier = Qualifier.Empty;
// var lineInfo = location.Value.ToLogLocation(pathTable);
// TODO: Consider adding a more specific exception for the no defaults case
error = new UnsupportedQualifierValue
{
// Location = lineInfo,
QualifierKey = sKey.ToString(stringTable),
InvalidValue = string.Empty,
LegalValues = string.Join(", ", m_valueValues[sIndex].Select(id => id.ToString(stringTable))),
};
return(false);
}
// It is larger, so we need to add the default value of the space to the target if enabled.
targetKeys[sIndex] = sKey;
targetValues[sIndex] = m_defaults[sIndex];
sIndex++;
}
}
}
qualifier = new Qualifier(targetKeys, targetValues);
error = default(UnsupportedQualifierValue);
return(true);
}
