super.bsh

来自「用java 编写的源码开放的文本编辑器。有很多有用的特性」· BSH 代码 · 共 43 行

/**
	Returns a bsh This reference to the enclosing scope 
	(method scope) of the specified name.
	e.g. 
	<p>
	<pre>
		foo() {
			x=1;
			bar() {
				x=2;
				gee() {
					x=3;
					print( x ); // 3
					print( super.x ); // 2
					print( super("foo").x ); // 1
				}
			}
		}
	</pre>
	<p>

	This is an experimental command that is not intended to be of general use.
	<p>

	@method This super( String scopename )
*/
bsh.help.super = "usage: super( methodname )";

// The implementation of this command is very fragile

super( String scope ) {
	n=this.caller.namespace;
	while ( n != global ) {
		if ( n.namespace.getName().equals( "Method NameSpace: "+ scope ) )
			return n;
		else
			n=n.super;
	}
	if ( n == global)
		throw new EvalError("Enclosing scope not found: "+scope);
}