public void Run(ILFunction function, ILTransformContext context)
{
if (!context.Settings.SwitchStatementOnString)
{
return;
}
HashSet <BlockContainer> changedContainers = new HashSet <BlockContainer>();
foreach (var block in function.Descendants.OfType <Block>())
{
bool changed = false;
for (int i = block.Instructions.Count - 1; i >= 0; i--)
{
if (SimplifyCascadingIfStatements(block.Instructions, ref i))
{
changed = true;
continue;
}
if (MatchLegacySwitchOnStringWithHashtable(block.Instructions, ref i))
{
changed = true;
continue;
}
if (MatchLegacySwitchOnStringWithDict(block.Instructions, ref i))
{
changed = true;
continue;
}
if (MatchRoslynSwitchOnString(block.Instructions, ref i))
{
changed = true;
continue;
}
}
if (!changed)
{
continue;
}
SwitchDetection.SimplifySwitchInstruction(block);
if (block.Parent is BlockContainer container)
{
changedContainers.Add(container);
}
}
foreach (var container in changedContainers)
{
container.SortBlocks(deleteUnreachableBlocks: true);
}
}
public void Run(ILFunction function, ILTransformContext context)
{
if (!context.Settings.LiftNullables)
{
return;
}
HashSet <BlockContainer> changedContainers = new HashSet <BlockContainer>();
foreach (var block in function.Descendants.OfType <Block>())
{
bool changed = false;
for (int i = block.Instructions.Count - 1; i >= 0; i--)
{
SwitchInstruction newSwitch;
if (MatchSwitchOnNullable(block.Instructions, i, out newSwitch))
{
newSwitch.ILRange = block.Instructions[i - 2].ILRange;
block.Instructions[i + 1].ReplaceWith(newSwitch);
block.Instructions.RemoveRange(i - 2, 3);
i -= 2;
changed = true;
continue;
}
if (MatchRoslynSwitchOnNullable(block.Instructions, i, out newSwitch))
{
newSwitch.ILRange = block.Instructions[i - 1].ILRange;
block.Instructions[i - 1].ReplaceWith(newSwitch);
block.Instructions.RemoveRange(i, 2);
i--;
changed = true;
continue;
}
}
if (!changed)
{
continue;
}
SwitchDetection.SimplifySwitchInstruction(block);
if (block.Parent is BlockContainer container)
{
changedContainers.Add(container);
}
}
foreach (var container in changedContainers)
{
container.SortBlocks(deleteUnreachableBlocks: true);
}
}