/** The minimum set of functionality required for objects which are manipulated by JavaScript */
public abstract class JS {
public static final JS METHOD = new JS() { };
- public final JS unclone() { return _unclone(); }
- public final JS jsclone() throws JSExn { return new Clone(this); }
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() +")"); }
- public InputStream getInputStream() throws IOException {
- throw new IOException("this object doesn't have a stream associated with it " + getClass().getName() + ")");
- }
-
- public final boolean hasTrap(JS key) { return getTrap(key) != null; }
-
public JS callMethod(JS method, JS a0, JS a1, JS a2, JS[] rest, int nargs) throws JSExn {
throw new JSExn("method not found (" + JS.debugToString(method) + ")");
}
-
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() +")");
}
+ public InputStream getInputStream() throws IOException {
+ throw new IOException("this object doesn't have a stream associated with it " + getClass().getName() + ")");
+ }
+ public final JS unclone() { return _unclone(); }
+ public final JS jsclone() throws JSExn { return new Clone(this); }
+ public final boolean hasTrap(JS key) { return getTrap(key) != null; }
public final boolean equals(Object o) { return this == o || ((o instanceof JS) && jsequals((JS)o)); }
+ // Discourage people from using toString()
+ public final String toString() { return "JS Object [class=" + getClass().getName() + "]"; }
- public final String toString() {
- // Discourage people from using toString()
- String s = "JS Object [class=" + getClass().getName() + "]";
- String ext = extendedToString();
- return ext == null ? s : s + " " + ext;
- }
-
- // These are only used internally by org.ibex.js
+ // Package private methods
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() +")"); }
boolean jsequals(JS o) { return this == o; }
- String extendedToString() { return null; }
-
+ JS _unclone() { return this; }
+
public static class O extends JS implements Cloneable {
private Hash entries;
}
}
- JS _unclone() { return this; }
-
public interface Cloneable { }
-
- public static class Clone extends JS.O {
+
+ public static class Clone extends O {
protected final JS clonee;
- JS _unclone() { return clonee.unclone(); }
- public JS getClonee() { return clonee; }
public Clone(JS clonee) throws JSExn {
if(!(clonee instanceof Cloneable)) throw new JSExn("" + clonee.getClass().getName() + " isn't cloneable");
this.clonee = clonee;
}
- public boolean jsequals(JS o) { return unclone().jsequals(o.unclone()); }
+ JS _unclone() { return clonee.unclone(); }
+ boolean jsequals(JS o) { return clonee.jsequals(o); }
+
public Enumeration keys() throws JSExn { return clonee.keys(); }
- 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 final JS get(JS key) throws JSExn { return clonee.get(key); }
+ public final void put(JS key, JS val) throws JSExn { clonee.put(key,val); }
+ public final 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 JS call(JS a0, JS a1, JS a2, JS[] rest, int nargs) throws JSExn {
return clonee.call(a0, a1, a2, rest, nargs);
}
public InputStream getInputStream() throws IOException { return clonee.getInputStream(); }
+ // FIXME: This shouldn't be necessary (its for Ibex.Blessing)
+ public JS getClonee() { return clonee; }
}
public static abstract class Enumeration extends JS {
return super.get(key);
}
}
+
public static class EmptyEnumeration extends Enumeration {
public EmptyEnumeration(Enumeration parent) { super(parent); }
protected boolean _hasMoreElements() { return false; }
return false;
}
- public static JS newArray() { return new JSArray(); }
- public static JS newRegexp(JS pat, JS flags) throws JSExn { return new JSRegexp(pat,flags); }
-
// Instance Methods ////////////////////////////////////////////////////////////////////
public final static JS NaN = new JSNumber.D(Double.NaN);
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);
+ return Parser.fromReader(sourceName, firstLine, sourceCode);
}
- // HACK: caller can't know if the argument is a JSFunction or not...
- public static JS cloneWithNewParentScope(JS j, JSScope s) {
- return ((JSFunction)j)._cloneWithNewParentScope(s);
+ public static JS cloneWithNewGlobalScope(JS js, JS s) {
+ if(js instanceof JSFunction)
+ return ((JSFunction)js)._cloneWithNewParentScope(new JSScope.Top(s));
+ else
+ return js;
}
// Trap support //////////////////////////////////////////////////////////////////////////////
/** performs a put, triggering traps if present; traps are run in an unpauseable interpreter */
- public void putAndTriggerTraps(JS key, JS value) throws JSExn {
+ public final void putAndTriggerTraps(JS key, JS value) throws JSExn {
Trap t = getTrap(key);
+ if(JS.isString(key) && JS.toString(key).equals("action")) System.err.println("got put to action! + " + t);
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 {
+ public final JS getAndTriggerTraps(JS key) throws JSExn {
Trap t = getTrap(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 {
+ public final 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 addTrap(JS key, JSFunction f) throws JSExn {
+ // FIXME: This shouldn't be public, it is needed for a hack in Template.java
+ public void addTrap(JS key, JSFunction f) throws JSExn {
if (f.numFormalArgs > 1) throw new JSExn("traps must take either one argument (write) or no arguments (read)");
boolean isRead = f.numFormalArgs == 0;
for(Trap t = getTrap(key); t != null; t = t.next) if (t.f == f) return;
}
/** deletes a trap, if present */
- final void delTrap(JS key, JSFunction f) throws JSExn {
+ // FIXME: This shouldn't be public, it is needed for a hack in Template.java
+ public void delTrap(JS key, JSFunction f) throws JSExn {
Trap t = (Trap)getTrap(key);
if (t == null) return;
if (t.f == f) { putTrap(t.target, t.next); return; }
projects / org.ibex.core.git / blobdiff