Method use

src/main/java/groovy/lang/ProxyMetaClass.java:104–113

Use the ProxyMetaClass for the given Closure. Cares for balanced register/unregister. @param closure piece of code to be executed with registered ProxyMetaClass

(final Closure closure)

     * @param closure piece of code to be executed with registered ProxyMetaClass
     */
    public Object use(final Closure closure) {
        // grab existing meta (usually adaptee but we may have nested use calls)
        MetaClass origMetaClass = registry.getMetaClass(theClass);
        registry.setMetaClass(theClass, this);
        try {
            return closure.call();
        } finally {
            registry.setMetaClass(theClass, origMetaClass);
        }
    }

    /**
     * Use the ProxyMetaClass for the given Closure.