private void Reference(ParameterExpression node, VariableStorageKind storage)
{
CompilerScope definition = null;
foreach (CompilerScope scope in _scopes)
{
if (scope.Definitions.ContainsKey(node))
{
definition = scope;
break;
}
scope.NeedsClosure = true;
if (scope.IsMethod)
{
storage = VariableStorageKind.Hoisted;
}
}
if (definition == null)
{
throw Error.UndefinedVariable(node.Name, node.Type, CurrentLambdaName);
}
if (storage == VariableStorageKind.Hoisted)
{
if (node.IsByRef)
{
throw Error.CannotCloseOverByRef(node.Name, CurrentLambdaName);
}
definition.Definitions[node] = VariableStorageKind.Hoisted;
}
}
private void Reference(ParameterExpression node, VariableStorageKind storage)
{
CompilerScope definition = null;
foreach (var scope in _scopes)
{
if (scope.Definitions.ContainsKey(node))
{
definition = scope;
break;
}
scope.NeedsClosure = true;
if (scope.IsMethod)
{
storage = VariableStorageKind.Hoisted;
}
}
if (definition == null)
{
throw new InvalidOperationException($"variable '{node.Name}' of type '{node.Type}' referenced from scope '{CurrentLambdaName}', but it is not defined");
}
if (storage != VariableStorageKind.Hoisted)
{
return;
}
if (node.IsByRef)
{
throw new InvalidOperationException($"Cannot close over byref parameter '{node.Name}' referenced in lambda '{CurrentLambdaName}'");
}
definition.Definitions[node] = VariableStorageKind.Hoisted;
}
