private static bool TryRemoveExistingEnumMembers(
ISwitchExpressionOperation operation, Dictionary <long, ISymbol> enumMembers)
{
foreach (var arm in operation.Arms)
{
if (arm.Pattern is IConstantPatternOperation constantPattern)
{
var constantValue = constantPattern.Value.ConstantValue;
if (!constantValue.HasValue)
{
// We had a case which didn't resolve properly.
// Assume the switch is complete.
return(false);
}
enumMembers.Remove(IntegerUtilities.ToInt64(constantValue.Value));
}
}
return(true);
}
public static bool HasDefaultCase(ISwitchExpressionOperation operation) => operation.Arms.Any(a => IsDefault(a));
public virtual void VisitSwitchExpression(ISwitchExpressionOperation operation)
{
DefaultVisit(operation);
}
protected sealed override ICollection <ISymbol> GetMissingEnumMembers(
ISwitchExpressionOperation switchOperation
) => PopulateSwitchExpressionHelpers.GetMissingEnumMembers(switchOperation);
protected sealed override ITypeSymbol GetSwitchType(
ISwitchExpressionOperation switchExpression
) => switchExpression.Value.Type ?? throw ExceptionUtilities.Unreachable;
protected sealed override ITypeSymbol GetSwitchType(ISwitchExpressionOperation switchExpression) => switchExpression.Value.Type;
protected sealed override bool HasDefaultCase(ISwitchExpressionOperation operation) => PopulateSwitchExpressionHelpers.HasDefaultCase(operation);
protected override bool IsSwitchTypeUnknown(ISwitchExpressionOperation operation) => operation.Value.Type is null;
protected override bool HasNullSwitchArm(ISwitchExpressionOperation switchOperation) => PopulateSwitchExpressionHelpers.HasNullSwitchArm(switchOperation);
