public EncVariableSlotAllocator(
SymbolMatcher symbolMap,
Func<SyntaxNode, SyntaxNode> syntaxMapOpt,
IMethodSymbolInternal previousTopLevelMethod,
DebugId methodId,
ImmutableArray<EncLocalInfo> previousLocals,
IReadOnlyDictionary<int, KeyValuePair<DebugId, int>> lambdaMapOpt,
IReadOnlyDictionary<int, DebugId> closureMapOpt,
string stateMachineTypeNameOpt,
int hoistedLocalSlotCount,
IReadOnlyDictionary<EncHoistedLocalInfo, int> hoistedLocalSlotsOpt,
int awaiterCount,
IReadOnlyDictionary<Cci.ITypeReference, int> awaiterMapOpt,
LambdaSyntaxFacts lambdaSyntaxFacts)
{
Debug.Assert(symbolMap != null);
Debug.Assert(previousTopLevelMethod != null);
Debug.Assert(!previousLocals.IsDefault);
_symbolMap = symbolMap;
_syntaxMapOpt = syntaxMapOpt;
_previousLocals = previousLocals;
_previousTopLevelMethod = previousTopLevelMethod;
_methodId = methodId;
_hoistedLocalSlotsOpt = hoistedLocalSlotsOpt;
_hoistedLocalSlotCount = hoistedLocalSlotCount;
_stateMachineTypeNameOpt = stateMachineTypeNameOpt;
_awaiterCount = awaiterCount;
_awaiterMapOpt = awaiterMapOpt;
_lambdaMapOpt = lambdaMapOpt;
_closureMapOpt = closureMapOpt;
_lambdaSyntaxFacts = lambdaSyntaxFacts;
// Create a map from local info to slot.
var previousLocalInfoToSlot = new Dictionary<EncLocalInfo, int>();
for (int slot = 0; slot < previousLocals.Length; slot++)
{
var localInfo = previousLocals[slot];
Debug.Assert(!localInfo.IsDefault);
if (localInfo.IsUnused)
{
// Unrecognized or deleted local.
continue;
}
previousLocalInfoToSlot.Add(localInfo, slot);
}
_previousLocalSlots = previousLocalInfoToSlot;
}