Class LHS

src/bsh/LHS.java:45–261

An LHS is a wrapper for an variable, field, or property. It ordinarily holds the "left hand side" of an assignment and may be either resolved to a value or assigned a value. There is one special case here termed METHOD_EVAL where the LHS is used in an intermediate evaluation of a chain

	<p>
*/
class LHS implements ParserConstants, java.io.Serializable
{
	NameSpace nameSpace;
	/** The assignment should be to a local variable */
	boolean localVar;

	/**
		Identifiers for the various types of LHS.
	*/
	static final int
		VARIABLE = 0,
		FIELD = 1,
		PROPERTY = 2,
		INDEX = 3,
		METHOD_EVAL = 4;

	int type;

	String varName;
	String propName;
	Field field;
	Object object;
	int index;

/**
		Variable LHS constructor.
*/
	LHS( NameSpace nameSpace, String varName )
	{
throw new Error("namespace lhs");
/*
		type = VARIABLE;
		this.varName = varName;
		this.nameSpace = nameSpace;
*/
	}

	/**
		@param localVar if true the variable is set directly in the This
		reference's local scope.  If false recursion to look for the variable
		definition in parent's scope is allowed. (e.g. the default case for
		undefined vars going to global).
	*/
	LHS( NameSpace nameSpace, String varName, boolean localVar )
	{
		type = VARIABLE;
		this.localVar = localVar;
		this.varName = varName;
		this.nameSpace = nameSpace;
	}

	/**
		Static field LHS Constructor.
		This simply calls Object field constructor with null object.
	*/
	LHS( Field field )
	{
		type = FIELD;