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package bjc.dicelang.v2;
public class Node {
public static enum Type {
ROOT, TOKREF,
UNARYOP, BINOP,
GROUP, OGROUP,
RESULT
}
public static enum GroupType {
ARRAY, CODE
}
public final Type type;
// These can have or not have values based of the node type
public Token tokenVal;
public Token.Type operatorType;
public GroupType groupType;
public EvaluatorResult resultVal;
public Node(Type typ) {
type = typ;
}
public Node(Type typ, Token tokenVl) {
this(typ);
tokenVal = tokenVl;
}
public Node(Type typ, Token.Type opType) {
this(typ);
operatorType = opType;
}
public Node(Type typ, GroupType grupType) {
this(typ);
groupType = grupType;
}
public Node(Type typ, EvaluatorResult res) {
this(typ);
resultVal = res;
}
public String toString() {
switch(type) {
case UNARYOP:
case BINOP:
return "(" + type.name() + " : " + operatorType + ")";
case OGROUP:
case TOKREF:
return "(" + type.name() + " : " + tokenVal + ")";
case GROUP:
return "(" + type.name() + " : " + groupType + ")";
case RESULT:
return "(" + type.name() + " : " + resultVal + ")";
default:
return "Unknown node type " + type;
}
}
public boolean equals(Object other) {
if(!(other instanceof Node)) return false;
Node otk = (Node)other;
if(otk.type != type) return false;
switch(type) {
case OGROUP:
return tokenVal.equals(otk.tokenVal);
default:
return true;
}
}
}
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