Class ASTree

  • All Implemented Interfaces:
    java.io.Serializable
    Direct Known Subclasses:
    ASTList, DoubleConst, IntConst, Keyword, Pair, StringL, Symbol

    public abstract class ASTree
    extends java.lang.Object
    implements java.io.Serializable
    Abstract Syntax Tree. An ASTree object represents a node of a binary tree. If the node is a leaf node, both getLeft() and getRight() returns null.
    See Also:
    Serialized Form
    • Constructor Detail

      • ASTree

        public ASTree()
    • Method Detail

      • getLeft

        public ASTree getLeft()
      • getRight

        public ASTree getRight()
      • setLeft

        public void setLeft​(ASTree _left)
      • setRight

        public void setRight​(ASTree _right)
      • accept

        public abstract void accept​(Visitor v)
                             throws CompileError
        Is a method for the visitor pattern. It calls atXXX() on the given visitor, where XXX is the class name of the node object.
        Throws:
        CompileError
      • toString

        public java.lang.String toString()
        Overrides:
        toString in class java.lang.Object
      • getTag

        protected java.lang.String getTag()
        Returns the type of this node. This method is used by toString().