public final JS unclone() { return _unclone(); }
public final JS jsclone() throws JSExn { return new Clone(this); }
- // FEATURE: JSEnumeration
- public Enumeration keys() throws JSExn { throw new JSExn("you can't enumerate the keys of this object (class=" + getClass().getName() +")"); }
+ public JS.Enumeration keys() throws JSExn { throw new JSExn("you can't enumerate the keys of this object (class=" + getClass().getName() +")"); }
public JS get(JS key) throws JSExn { return null; }
public void put(JS key, JS val) throws JSExn { throw new JSExn("" + key + " is read only (class=" + getClass().getName() +")"); }
throw new JSExn("method not found (" + JS.debugToString(method) + ")");
}
- // FIXME: JSArgs objects, pointers into stack frame
public JS call(JS a0, JS a1, JS a2, JS[] rest, int nargs) throws JSExn {
throw new JSExn("you cannot call this object (class=" + this.getClass().getName() +")");
}
Trap getTrap(JS key) { return null; }
void putTrap(JS key, Trap value) throws JSExn { throw new JSExn("traps cannot be placed on this object (class=" + this.getClass().getName() +")"); }
String coerceToString() throws JSExn { throw new JSExn("can't coerce to a string (class=" + getClass().getName() +")"); }
+ String debugToString() { return "[class=" + getClass().getName() + "]"; }
boolean jsequals(JS o) { return this == o; }
- public static class O extends JS {
+ public static class O extends JS implements Cloneable {
private Hash entries;
- public Enumeration keys() throws JSExn { return entries == null ? emptyEnumeration : entries.keys(); }
+ public Enumeration keys() throws JSExn { return entries == null ? (Enumeration)EMPTY_ENUMERATION : (Enumeration)new JavaEnumeration(null,entries.keys()); }
public JS get(JS key) throws JSExn { return entries == null ? null : (JS)entries.get(key, null); }
public void put(JS key, JS val) throws JSExn { (entries==null?entries=new Hash():entries).put(key,null,val); }
public final void replaceNode(int index, Object o) { bt().replaceNode(index,o); }
public final int indexNode(Object o) { return bt().indexNode(o); }
}
-
- // FEATURE: JS.StringKeys
- /* public static StringKeys extends JS {
- public JS get(JS key) { return JS.isString(key) ? get(JS.toString(key) : null; }
- ...
- */
-
+
JS _unclone() { return this; }
public interface Cloneable { }
- public static class Clone extends JS.O implements Cloneable {
+ public static class Clone extends JS.O {
protected final JS clonee;
JS _unclone() { return clonee.unclone(); }
public JS getClonee() { return clonee; }
}
public boolean jsequals(JS o) { return unclone().jsequals(o.unclone()); }
public Enumeration keys() throws JSExn { return clonee.keys(); }
- public JS get(JS key) throws JSExn { return clonee.get(key); }
- public void put(JS key, JS val) throws JSExn { clonee.put(key, val); }
+ public JS get(JS key) throws JSExn { return clonee.getAndTriggerTraps(key); }
+ public void put(JS key, JS val) throws JSExn { clonee.putAndTriggerTraps(key, val); }
public JS callMethod(JS method, JS a0, JS a1, JS a2, JS[] rest, int nargs) throws JSExn {
return clonee.callMethod(method, a0, a1, a2, rest, nargs);
}
public InputStream getInputStream() throws IOException { return clonee.getInputStream(); }
}
+ public static abstract class Enumeration extends JS {
+ final Enumeration parent;
+ boolean done;
+ public Enumeration(Enumeration parent) { this.parent = parent; }
+ protected abstract boolean _hasMoreElements();
+ protected abstract JS _nextElement() throws JSExn;
+
+ public final boolean hasMoreElements() {
+ if(!done && !_hasMoreElements()) done = true;
+ return !done ? true : parent != null ? parent.hasMoreElements() : false;
+ }
+ public final JS nextElement() throws JSExn { return !done ? _nextElement() : parent != null ? parent.nextElement() : null; }
+
+ public JS get(JS key) throws JSExn {
+ //#jswitch(key)
+ case "hasMoreElements": return B(hasMoreElements());
+ case "nextElement": return nextElement();
+ //#end
+ return super.get(key);
+ }
+ }
+ public static class EmptyEnumeration extends Enumeration {
+ public EmptyEnumeration(Enumeration parent) { super(parent); }
+ protected boolean _hasMoreElements() { return false; }
+ protected JS _nextElement() { return null; }
+ }
+ public static class JavaEnumeration extends Enumeration {
+ private final java.util.Enumeration e;
+ public JavaEnumeration(Enumeration parent, java.util.Enumeration e) { super(parent); this.e = e; }
+ protected boolean _hasMoreElements() { return e.hasMoreElements(); }
+ protected JS _nextElement() { return (JS) e.nextElement(); }
+ }
+
// Static Interpreter Control Methods ///////////////////////////////////////////////////////////////
/** log a message with the current JavaScript sourceName/line */
boolean get;
switch(i.f.op[i.pc]) {
case Tokens.RETURN: case ByteCodes.PUT: get = false; break;
- case ByteCodes.GET: get = true; break;
+ case ByteCodes.GET: case ByteCodes.CALL: get = true; break;
default: throw new Error("should never happen");
}
i.pausecount++;
public static String debugToString(JS o) {
try { return toString(o); }
- catch(JSExn e) { return "[class=" + o.getClass().getName() + "]"; }
+ catch(JSExn e) { return o.debugToString(); }
}
public static boolean isInt(JS o) {
return ret;
}
- private static Enumeration emptyEnumeration = new Enumeration() {
- public boolean hasMoreElements() { return false; }
- public Object nextElement() { throw new NoSuchElementException(); }
- };
+ private static Enumeration EMPTY_ENUMERATION = new EmptyEnumeration(null);
public static JS fromReader(String sourceName, int firstLine, Reader sourceCode) throws IOException {
return JSFunction._fromReader(sourceName, firstLine, sourceCode);
/** performs a put, triggering traps if present; traps are run in an unpauseable interpreter */
public void putAndTriggerTraps(JS key, JS value) throws JSExn {
Trap t = getTrap(key);
- if (t != null) t.invoke(value);
- else put(key, value);
+ if(t == null || (t = t.writeTrap()) == null) put(key,value);
+ else new Interpreter(t,value,false).resume();
}
/** performs a get, triggering traps if present; traps are run in an unpauseable interpreter */
public JS getAndTriggerTraps(JS key) throws JSExn {
Trap t = getTrap(key);
- if (t != null) return t.invoke();
- else return get(key);
+ if (t == null || (t = t.readTrap()) == null) return get(key);
+ else return new Interpreter(t,null,false).resume();
+ }
+
+ public JS justTriggerTraps(JS key, JS value) throws JSExn {
+ Trap t = getTrap(key);
+ if(t == null || (t = t.writeTrap()) == null) return value;
+ else return new Interpreter(t,value,true).resume();
}
/** adds a trap, avoiding duplicates */
final void delTrap(JS key, JSFunction f) throws JSExn {
Trap t = (Trap)getTrap(key);
if (t == null) return;
- if (t.f == f) { putTrap(t.name, t.next); return; }
+ if (t.f == f) { putTrap(t.target, t.next); return; }
for(; t.next != null; t = t.next) if (t.next.f == f) { t.next = t.next.next; return; }
}
projects / org.ibex.core.git / blobdiff