/// <summary>
/// Merge constructor.
/// </summary>
public FlowState(FlowState state1, FlowState state2)
{
Debug.Assert(state1 != null);
Debug.Assert(state2 != null);
Debug.Assert(state1.FlowContext == state2.FlowContext);
//
_varsType = EnumeratorExtension.MixArrays(state1._varsType, state2._varsType, TypeRefMask.Or);
_flowCtx = state1._flowCtx;
_initializedMask = state1._initializedMask & state2._initializedMask;
// intersection of other variable flags
if (state1._lessThanLongMax != null && state2._lessThanLongMax != null)
{
_lessThanLongMax = new HashSet <VariableHandle>(state1._lessThanLongMax);
_lessThanLongMax.Intersect(state2._lessThanLongMax);
}
//// merge variables kind,
//// conflicting kinds are not allowed currently!
//if (state1._varKindMap != null || state1._varKindMap != null)
//{
// _varKindMap = new Dictionary<VariableName, VariableKind>();
// if (state1._varKindMap != null) state1._varKindMap.Foreach(k => SetVarKind(k.Key, k.Value));
// if (state2._varKindMap != null) state2._varKindMap.Foreach(k => SetVarKind(k.Key, k.Value));
//}
}
/// <summary>
/// Merge constructor.
/// </summary>
public FlowState(FlowState state1, FlowState state2)
{
Debug.Assert(state1 != null);
Debug.Assert(state2 != null);
Debug.Assert(state1.FlowContext == state2.FlowContext);
Debug.Assert(state1.Version == state2.Version);
//
_flowCtx = state1._flowCtx;
_varsType = EnumeratorExtension.MixArrays(state1._varsType, state2._varsType, TypeRefMask.Or, TypeRefContext.GetNullTypeMask);
_initializedMask = state1._initializedMask | state2._initializedMask;
// intersection of other variable flags
if (state1._notes != null && state2._notes != null)
{
_notes = new HashSet <NoteData>(state1._notes);
_notes.Intersect(state2._notes);
}
_version = state1.Version;
//// merge variables kind,
//// conflicting kinds are not allowed currently!
//if (state1._varKindMap != null || state1._varKindMap != null)
//{
// _varKindMap = new Dictionary<VariableName, VariableKind>();
// if (state1._varKindMap != null) state1._varKindMap.Foreach(k => SetVarKind(k.Key, k.Value));
// if (state2._varKindMap != null) state2._varKindMap.Foreach(k => SetVarKind(k.Key, k.Value));
//}
}
/// <summary>
/// Merge constructor.
/// </summary>
public FlowState(FlowState state1, FlowState state2)
{
Contract.ThrowIfNull(state1);
Contract.ThrowIfNull(state2);
Debug.Assert(state1._common == state2._common);
//
_varsType = EnumeratorExtension.MixArrays(state1._varsType, state2._varsType, TypeRefMask.Or);
_common = state1._common;
_initializedMask = state1._initializedMask & state2._initializedMask;
// intersection of other variable flags
if (state1._lessThanLongMax != null && state2._lessThanLongMax != null)
{
_lessThanLongMax = new HashSet <string>(state1._lessThanLongMax);
_lessThanLongMax.Intersect(state2._lessThanLongMax);
}
}