public override object VisitBranched_atom([NotNull] smilesParser.Branched_atomContext context)
{
foreach (IParseTree tree in context.children)
{
if (typeof(smilesParser.AtomContext).IsAssignableFrom(tree.GetType()))
{
Atom current = (Atom)VisitAtom((smilesParser.AtomContext)tree);
if (current.Element != ELEMENTS.H)
{
retVal.AddAtom(current);
if (addExplicitHToNext)
{
current.ExplicitHydrogens++;
addExplicitHToNext = false;
}
if (last != null)
{
if (last.AtomType == AtomType.AROMATIC && current.AtomType == AtomType.AROMATIC)
{
nextBond = BondType.Aromatic;
}
}
Bond b = retVal.AddBond(last, current, nextBond, BondStereo.NotStereoOrUseXYZ, BondTopology.Either, BondReactingCenterStatus.Unmarked);
if (!string.IsNullOrEmpty(cisTrans) && nextBond == BondType.Double)
{
doubleBonds.Add(b);
}
nextBond = BondType.Single;
last = current;
}
else
{
if (last != null)
{
last.ExplicitHydrogens++;
}
else
{
addExplicitHToNext = true;
}
}
}
else if (typeof(smilesParser.RingbondContext).IsAssignableFrom(tree.GetType()))
{
int ring = (int)VisitRingbond((smilesParser.RingbondContext)tree);
if (ringAtoms.ContainsKey(ring))
{
BondType nextType = (BondType)ringbonds[ring];
if (nextType != BondType.Single && (nextBond == BondType.Single || nextBond == nextType))
{
nextBond = nextType;
}
Bond b = retVal.AddBond(last, (Atom)ringAtoms[ring], nextBond, BondStereo.NotStereoOrUseXYZ, BondTopology.Either, BondReactingCenterStatus.Unmarked);
if (!string.IsNullOrEmpty(cisTrans) && nextBond == BondType.Double)
{
doubleBonds.Add(b);
}
nextBond = BondType.Single;
ringAtoms.Remove(ring);
ringbonds.Remove(ring);
}
else
{
ringAtoms.Add(ring, last);
ringbonds.Add(ring, nextBond);
nextBond = BondType.Single;
}
}
else if (typeof(smilesParser.BranchContext).IsAssignableFrom(tree.GetType()))
{
Atom temp = last;
VisitBranch((smilesParser.BranchContext)tree);
last = temp;
}
else if (typeof(smilesParser.BondContext).IsAssignableFrom(tree.GetType()))
{
nextBond = (BondType)VisitBond((smilesParser.BondContext)context.GetChild(1));
}
else
{
throw new System.InvalidOperationException("uhoh");
}
}
return(null);
}
/// <summary>
/// Visit a parse tree produced by <see cref="smilesParser.branched_atom"/>.
/// <para>
/// The default implementation returns the result of calling <see cref="AbstractParseTreeVisitor{Result}.VisitChildren(IRuleNode)"/>
/// on <paramref name="context"/>.
/// </para>
/// </summary>
/// <param name="context">The parse tree.</param>
/// <return>The visitor result.</return>
public virtual Result VisitBranched_atom([NotNull] smilesParser.Branched_atomContext context)
{
return(VisitChildren(context));
}
/// <summary>
/// Exit a parse tree produced by <see cref="smilesParser.branched_atom"/>.
/// <para>The default implementation does nothing.</para>
/// </summary>
/// <param name="context">The parse tree.</param>
public virtual void ExitBranched_atom([NotNull] smilesParser.Branched_atomContext context)
{
}