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package bjc.dicelang.ast.nodes;
/**
* A node that represents a reference to a variable
*
* @author ben
*
*/
public class VariableDiceNode implements IDiceASTNode {
/**
* The variable referenced by this node
*/
private String variableName;
/**
* Create a new node representing the specified variable
*
* @param varName
* The name of the variable being referenced
*/
public VariableDiceNode(String varName) {
this.variableName = varName;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#equals(java.lang.Object)
*/
@Override
public boolean equals(Object obj) {
// Handle special cases
if (this == obj) {
return true;
} else if (obj == null) {
return false;
} else if (getClass() != obj.getClass()) {
return false;
} else {
VariableDiceNode other = (VariableDiceNode) obj;
if (variableName == null) {
if (other.variableName != null) {
return false;
}
} else if (!variableName.equals(other.variableName)) {
return false;
}
return true;
}
}
@Override
public DiceASTType getType() {
return DiceASTType.VARIABLE;
}
/**
* Get the variable referenced by this AST node
*
* @return the variable referenced by this AST node
*/
public String getVariable() {
return variableName;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#hashCode()
*/
@Override
public int hashCode() {
final int prime = 31;
int result = 1;
result = prime * result
+ ((variableName == null) ? 0 : variableName.hashCode());
return result;
}
/*
* (non-Javadoc)
*
* @see bjc.utils.dice.ast.IDiceASTNode#isOperator()
*/
@Override
public boolean isOperator() {
return false;
}
/*
* (non-Javadoc)
*
* @see java.lang.Object#toString()
*/
@Override
public String toString() {
return variableName;
}
}
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