/// <summary>
/// Returns an index of a slot that stores specified hoisted local variable in the previous generation.
/// </summary>
public abstract bool TryGetPreviousHoistedLocalSlotIndex(
SyntaxNode currentDeclarator,
Cci.ITypeReference currentType,
SynthesizedLocalKind synthesizedKind,
LocalDebugId currentId,
DiagnosticBag diagnostics,
out int slotIndex);
public abstract LocalDefinition GetPreviousLocal(
Cci.ITypeReference type,
ILocalSymbolInternal symbol,
string nameOpt,
SynthesizedLocalKind kind,
LocalDebugId id,
LocalVariableAttributes pdbAttributes,
LocalSlotConstraints constraints,
ImmutableArray <string> tupleElementNames);
private LocalDefinition DeclareLocalImpl(
Cci.ITypeReference type,
ILocalSymbolInternal symbolOpt,
string nameOpt,
SynthesizedLocalKind kind,
LocalDebugId id,
LocalVariableAttributes pdbAttributes,
LocalSlotConstraints constraints,
ImmutableArray <bool> dynamicTransformFlags,
ImmutableArray <string> tupleElementNames)
{
if (_lazyAllLocals == null)
{
_lazyAllLocals = new ArrayBuilder <Cci.ILocalDefinition>(1);
}
LocalDefinition local;
if (symbolOpt != null && _slotAllocatorOpt != null)
{
local = _slotAllocatorOpt.GetPreviousLocal(
type,
symbolOpt,
nameOpt,
kind,
id,
pdbAttributes,
constraints,
dynamicTransformFlags: dynamicTransformFlags,
tupleElementNames: tupleElementNames);
if (local != null)
{
int slot = local.SlotIndex;
_lazyAllLocals[slot] = local;
return(local);
}
}
local = new LocalDefinition(
symbolOpt: symbolOpt,
nameOpt: nameOpt,
type: type,
slot: _lazyAllLocals.Count,
synthesizedKind: kind,
id: id,
pdbAttributes: pdbAttributes,
constraints: constraints,
dynamicTransformFlags: dynamicTransformFlags,
tupleElementNames: tupleElementNames);
_lazyAllLocals.Add(local);
return(local);
}
/// <summary>
/// Creates a new LocalDefinition.
/// </summary>
/// <param name="symbolOpt">Local symbol, used by edit and continue only, null otherwise.</param>
/// <param name="nameOpt">Name associated with the slot.</param>
/// <param name="type">Type associated with the slot.</param>
/// <param name="slot">Slot position in the signature.</param>
/// <param name="synthesizedKind">Local kind.</param>
/// <param name="id">Local id.</param>
/// <param name="pdbAttributes">Value to emit in the attributes field in the PDB.</param>
/// <param name="constraints">Specifies whether slot type should have pinned modifier and whether slot should have byref constraint.</param>
/// <param name="dynamicTransformFlags">The synthesized dynamic attributes of the local.</param>
/// <param name="tupleElementNames">Tuple element names of the local.</param>
public LocalDefinition(
ILocalSymbol symbolOpt,
string nameOpt,
Cci.ITypeReference type,
int slot,
SynthesizedLocalKind synthesizedKind,
LocalDebugId id,
LocalVariableAttributes pdbAttributes,
LocalSlotConstraints constraints,
ImmutableArray <string> tupleElementNames)
{
_symbolOpt = symbolOpt;
_nameOpt = nameOpt;
_type = type;
_slot = slot;
_slotInfo = new LocalSlotDebugInfo(synthesizedKind, id);
_pdbAttributes = pdbAttributes;
_tupleElementNames = tupleElementNames.NullToEmpty();
_constraints = constraints;
}
internal LocalDefinition DeclareLocal(
Cci.ITypeReference type,
ILocalSymbolInternal symbol,
string name,
SynthesizedLocalKind kind,
LocalDebugId id,
LocalVariableAttributes pdbAttributes,
LocalSlotConstraints constraints,
ImmutableArray <string> tupleElementNames,
bool isSlotReusable)
{
LocalDefinition local;
if (!isSlotReusable || !FreeSlots.TryPop(new LocalSignature(type, constraints), out local))
{
local = this.DeclareLocalImpl(type, symbol, name, kind, id, pdbAttributes, constraints, tupleElementNames);
}
LocalMap.Add(symbol, local);
return(local);
}
public LocalSlotDebugInfo(SynthesizedLocalKind synthesizedKind, LocalDebugId id)
{
this.SynthesizedKind = synthesizedKind;
this.Id = id;
}