private static EncHoistedLocalInfo MapHoistedLocalSlot(EncHoistedLocalInfo info, SymbolMatcher map)
{
if (info.IsUnused)
{
return(info);
}
return(new EncHoistedLocalInfo(info.SlotInfo, map.MapReference(info.Type)));
}
public override bool TryGetPreviousHoistedLocalSlotIndex(
SyntaxNode currentDeclarator,
Cci.ITypeReference currentType,
SynthesizedLocalKind synthesizedKind,
LocalDebugId currentId,
DiagnosticBag diagnostics,
out int slotIndex)
{
// The previous method was not a state machine (it is allowed to change non-state machine to a state machine):
if (_hoistedLocalSlotsOpt == null)
{
slotIndex = -1;
return(false);
}
LocalDebugId previousId;
if (!TryGetPreviousLocalId(currentDeclarator, currentId, out previousId))
{
slotIndex = -1;
return(false);
}
var previousType = _symbolMap.MapReference(currentType);
if (previousType == null)
{
slotIndex = -1;
return(false);
}
// TODO (bug #781309): Should report a warning if the type of the local has changed
// and the previous value will be dropped.
var localKey = new EncHoistedLocalInfo(new LocalSlotDebugInfo(synthesizedKind, previousId), previousType);
return(_hoistedLocalSlotsOpt.TryGetValue(localKey, out slotIndex));
}
