package com.semmle.js.ast;

import com.semmle.ts.ast.INodeWithSymbol;
import com.semmle.ts.ast.ITypeExpression;

/**
 * An identifier.
 *
 * Identifiers can either be variable declarations (like <code>x</code> in <code>var x;</code>),
 * variable references (like <code>x</code> in <code>x = 42</code>), property names
 * (like <code>f</code> in <code>e.f</code>), statement labels (like <code>l</code> in
 * <code>l: while(true);</code>), or statement label references (like <code>l</code> in
 * <code>break l;</code>).
 */
public class Identifier extends Expression implements IPattern, ITypeExpression, INodeWithSymbol {
	private final String name;
	private int symbol = -1;

	public Identifier(SourceLocation loc, String name) {
		super("Identifier", loc);
		this.name = name;
	}

	@Override
	public <Q, A> A accept(Visitor<Q, A> v, Q q) {
		return v.visit(this, q);
	}

	/**
	 * The name of this identifier.
	 */
	public String getName() {
		return name;
	}

	@Override
	public int getSymbol() {
		return symbol;
	}

	@Override
	public void setSymbol(int symbol) {
		this.symbol = symbol;
	}
}