private static string GetVariableKindText(VariableKind kind)
{
switch (kind)
{
case VariableKind.Property:
return("property");
case VariableKind.Method:
return("method");
case VariableKind.Field:
return("field");
case VariableKind.Local:
return("local");
case VariableKind.Unknown:
return("unknown");
default:
throw new InvalidOperationException("Invalid SymbolKind: " + kind.ToString());
}
}
private static string GetVariableKindText(VariableKind kind)
{
switch (kind)
{
case VariableKind.Property:
return "property";
case VariableKind.Method:
return "method";
case VariableKind.Field:
return "field";
case VariableKind.Local:
return "local";
case VariableKind.Unknown:
return "unknown";
default:
throw new InvalidOperationException("Invalid SymbolKind: " + kind.ToString());
}
}
internal Slot CreateSlot(CodeGen cg)
{
switch (_kind)
{
case VariableKind.Local:
if (_storage == null)
{
// Fall back on a runtime lookup if this variable does not have storage associated with it
// (e.g. if the variable belongs to a block in interpreted mode).
return(new LocalNamedFrameSlot(cg.ContextSlot, _name));
}
else
{
return(CreateSlotForVariable(cg));
}
case VariableKind.Parameter:
if (_lift)
{
if (_storage == null)
{
return(new LocalNamedFrameSlot(cg.ContextSlot, _name));
}
else
{
return(CreateSlotForVariable(cg));
}
}
else
{
//Debug.Assert(cg.Allocator.ActiveScope == _block);
return(MarkLocal(GetArgumentSlot(cg)));
}
case VariableKind.Global:
if (_storage == null)
{
return(new NamedFrameSlot(cg.ContextSlot, _name));
}
else
{
// Globals are accessed via context slot
return(_storage.CreateSlot(cg.ContextSlot));
}
case VariableKind.Temporary:
return(cg.GetNamedLocal(_type, SymbolTable.IdToString(_name)));
case VariableKind.GeneratorTemporary:
if (!cg.IsGenerator)
{
goto case VariableKind.Temporary;
}
// Allocate in environment if emitting generator.
// This must be done here for now because the environment
// allocation, which is generally done in Allocate(),
// is done in the context of the outer generator codegen,
// which is not marked IsGenerator so the generator temps
// would go onto CLR stack rather than environment.
// TODO: Fix this once we have lifetime analysis in place.
_storage = _block.EnvironmentFactory.MakeEnvironmentReference(_name, _type);
return(CreateSlotForVariable(cg));
}
Debug.Assert(false, "Unexpected variable kind: " + _kind.ToString());
return(null);
}