Class WritableClosure

src/main/java/groovy/lang/Closure.java:1050–1248

     * inner class instead of the outer!
     */
    private class WritableClosure extends Closure implements Writable {
        @Serial private static final long serialVersionUID = -5749205698681690370L;

        private WritableClosure() {
            super(Closure.this);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public Writer writeTo(Writer out) throws IOException {
            Closure.this.call(new Object[]{out});

            return out;
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public Object invokeMethod(String method, Object arguments) {
            if ("clone".equals(method)) {
                return clone();
            }
            if ("curry".equals(method)) {
                return curry((Object[]) arguments);
            }
            if ("asWritable".equals(method)) {
                return asWritable();
            }
            return Closure.this.invokeMethod(method, arguments);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public Object getProperty(String property) {
            return Closure.this.getProperty(property);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public void setProperty(String property, Object newValue) {
            Closure.this.setProperty(property, newValue);
        }

        /**
         * {@inheritDoc}
         */
        @Override
        public Object call() {
            return ((Closure) getOwner()).call();
        }