public override void Init(ParsingContext context, ParseTreeNode treeNode)
{
base.Init(context, treeNode);
Target = AddChild(NodeUseType.ValueWrite, "To", treeNode.MappedChildNodes[0]);
//Get Op and baseOp if it is combined assignment
AssignmentOp = treeNode.MappedChildNodes[1].FindTokenAndGetText();
if (string.IsNullOrEmpty(AssignmentOp))
{
AssignmentOp = "=";
}
BinaryExpressionType = CustomExpressionTypes.NotAnExpression;
//There maybe an "=" sign in the middle, or not - if it is marked as punctuation; so we just take the last node in child list
Expression = AddChild(NodeUseType.ValueRead, "Expr", treeNode.LastChild);
AsString = AssignmentOp + " (assignment)";
// TODO: this is not always correct: in Pascal the assignment operator is :=.
IsAugmented = AssignmentOp.Length > 1;
if (IsAugmented)
{
//it is combined op
base.ExpressionType = context.GetOperatorExpressionType(AssignmentOp);
BinaryExpressionType = OperatorUtility.GetBinaryOperatorForAugmented(this.ExpressionType);
Target.UseType = NodeUseType.ValueReadWrite;
}
}
