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CS269: HW/SW Engineering of Embedded Systems, Winter02
Using
TM_CHILDREN_FIRST
•
One useful method to retrieve the return values of the
children nodes:
–
Object
childReturnValueAt
(int index);
•
Example:
public Object visitBlockNode(BlockNode node, LinkedList args){
return node.
childReturnValueAt
(node.CHILD_INDEX_STMTS)
}
BlockNode
StatementNode
StatementNode
StatementNode
