public override LocalDefinition GetPreviousLocal(
Cci.ITypeReference currentType,
ILocalSymbolInternal currentLocalSymbol,
string nameOpt,
SynthesizedLocalKind kind,
LocalDebugId id,
uint pdbAttributes,
LocalSlotConstraints constraints,
bool isDynamic,
ImmutableArray <TypedConstant> dynamicTransformFlags)
{
if (id.IsNone)
{
return(null);
}
LocalDebugId previousId;
if (!TryGetPreviousLocalId(currentLocalSymbol.GetDeclaratorSyntax(), id, out previousId))
{
return(null);
}
var previousType = _symbolMap.MapReference(currentType);
if (previousType == null)
{
return(null);
}
// 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 EncLocalInfo(new LocalSlotDebugInfo(kind, previousId), previousType, constraints, signature: null);
int slot;
if (!_previousLocalSlots.TryGetValue(localKey, out slot))
{
return(null);
}
return(new LocalDefinition(
currentLocalSymbol,
nameOpt,
currentType,
slot,
kind,
id,
pdbAttributes,
constraints,
isDynamic,
dynamicTransformFlags));
}
private static EncHoistedLocalInfo MapHoistedLocalSlot(EncHoistedLocalInfo info, SymbolMatcher map)
{
if (info.IsUnused)
{
return(info);
}
return(new EncHoistedLocalInfo(info.SlotInfo, map.MapReference(info.Type)));
}
private static EncLocalInfo MapLocalInfo(EncLocalInfo info, SymbolMatcher map)
{
Debug.Assert(!info.IsDefault);
if (info.IsUnused)
{
Debug.Assert(info.Signature != null);
return(info);
}
return(new EncLocalInfo(info.SlotInfo, map.MapReference(info.Type), info.Constraints, info.Signature));
}
public override LocalDefinition GetPreviousLocal(
Cci.ITypeReference type,
ILocalSymbol symbol,
string nameOpt,
CommonSynthesizedLocalKind synthesizedKind,
uint pdbAttributes,
LocalSlotConstraints constraints,
bool isDynamic,
ImmutableArray <TypedConstant> dynamicTransformFlags)
{
var syntaxRefs = symbol.DeclaringSyntaxReferences;
Debug.Assert(!syntaxRefs.IsDefault);
if (!syntaxRefs.IsDefaultOrEmpty)
{
var currentSyntax = syntaxRefs[0].GetSyntax();
var previousSyntax = syntaxMap(currentSyntax);
if (previousSyntax != null)
{
int offset;
if (previousDeclaratorToOffset.TryGetValue(previousSyntax, out offset))
{
var previousType = symbolMap.MapReference(type);
if (previousType != null)
{
var localKey = new EncLocalInfo(offset, previousType, constraints, synthesizedKind, signature: null);
int slot;
// Should report a warning if the type of the local has changed
// and the previous value will be dropped. (Bug #781309.)
if (previousLocalInfoToSlot.TryGetValue(localKey, out slot))
{
return(new LocalDefinition(
symbol,
nameOpt,
type,
slot,
synthesizedKind,
pdbAttributes,
constraints,
isDynamic,
dynamicTransformFlags));
}
}
}
}
}
return(null);
}
