private VariableReference[] GetReferences() {
if (_refs != null) {
VariableReference[] references = new VariableReference[_refs.Values.Count];
_refs.Values.CopyTo(references, 0);
return references;
} else {
return new VariableReference[0];
}
}
private VariableReference GetOrMakeRef(Variable variable) {
Debug.Assert(variable != null);
if (_refs == null) {
_refs = new Dictionary<Variable, VariableReference>();
}
VariableReference reference;
if (!_refs.TryGetValue(variable, out reference)) {
_refs[variable] = reference = new VariableReference(variable);
}
return reference;
}
public override bool Equals(object obj)
{
VariableReference b = obj as VariableReference;
return(b.Variable.Name == Variable.Name && b.Variable.Block == Variable.Block);
}
internal VariableReference Reference(Variable variable)
{
if (_references == null) {
_references = new Dictionary<Variable, VariableReference>();
}
if (variable.Block == null)
{
return null;
}
VariableReference reference;
if (!_references.TryGetValue(variable, out reference)) {
_references[variable] = reference = new VariableReference(variable);
}
return reference;
}
internal IList<VariableReference> GetReferences()
{
if (_references != null) {
Dictionary<Variable, VariableReference>.ValueCollection values = _references.Values;
VariableReference[] refs = new VariableReference[values.Count];
int index = 0;
foreach (VariableReference vr in values) {
refs[index++] = vr;
}
return refs;
} else {
return new VariableReference[0];
}
}