+ public Number coerceToNumber() { throw new Error("you cannot coerce a " + this.getClass().getName() + " into a Number"); }
+ public String coerceToString() { throw new Error("you cannot coerce a " + this.getClass().getName() + " into a String"); }
+ public boolean coerceToBoolean() { throw new Error("you cannot coerce a " + this.getClass().getName() + " into a Boolean"); }
+
+ public String typeName() { return "object"; }
+
+
+ // Inner Classes /////////////////////////////////////////////////////////////////////////
+
+ /** A sensible implementation of the abstract methods in the JS class */
+ public static class Obj extends JS {
+ private Hash entries = new Hash();
+ private boolean sealed = false;
+ public Obj() { this(false); }
+ public Obj(boolean sealed) { this.sealed = sealed; }
+ /** a sealed object cannot have its properties modified */
+ public void setSeal(boolean sealed) { this.sealed = sealed; }
+ public void put(Object key, Object val) { if (!sealed) entries.put(key, val); }
+ public Object[] keys() { return(entries.keys()); }
+ public Object get(Object key) {
+ if(callMethod((String)key,null,true) == Boolean.TRUE)
+ return new Internal.CallableStub(this,key);
+ return entries.get(key);
+ }
+ public Object callMethod(Object method, JS.Array args, boolean checkOnly) throws JS.Exn {
+ if(checkOnly) return Boolean.FALSE;
+ Object o = get(method);
+ if(o instanceof JS.Callable) {
+ return ((JS.Callable)o).call(args);
+ } else if(o == null) {
+ throw new JS.Exn("Attempted to call non-existent method: " + method);
+ } else {
+ throw new JS.Exn("Attempted to call a non-method: " +method);
+ }
+ }
+ }