private VariableSnapshot GetSnapshotDeclaration(string expression, string operation)
{
string variable = expression.Contains(POINTER_ACCESS_MARKER) ?
expression.Split(POINTER_ACCESS_MARKER).First() :
expression;
if (_dataStructure.HasGlobalVariable(variable) || (_dataStructure[operation][variable] != null && _dataStructure[operation][variable].LinksToGlobalState))
{
string type = _typeService.GetType(expression, operation);
if (!_typeService.IsPointer(type))
{
int pointerIndex = expression.InvariantLastIndexOf(POINTER_ACCESS_MARKER);
if (pointerIndex < 0)
{
return(null);
}
expression = expression.Substring(0, pointerIndex);
type = _typeService.GetType(expression, operation);
}
var result = new VariableSnapshot(type, GetSnapshotName(expression), expression);
return(result);
}
return(null);
}