* arguments are invalid. */
public JS call(JS method, JS[] args) throws JSExn;
- /** Calls this object with the given arguments, running it in an
- * <i>unpausable</i> context. An exception is thrown if this
- * object is not callable or the arguments are invalid. */
- public JS call(JS[] args) throws JSExn;
-
/** Returns the names of the formal arguments, if any.
* This function must never return a null object. */
public String[] getFormalArgs();
public Trap getTrap(JS key) throws JSExn;
// FIXME: consider renaming/removing these
- public InputStream getInputStream() throws IOException, JSExn;
public JS unclone();
- public String coerceToString();
+ public String coerceToString() throws JSExn;
// Implementations ////////////////////////////////////////////////////////
private static final String[] emptystr = new String[0];
public JS unclone() { return this; }
- public JS.Enumeration keys() throws JSExn { throw new JSExn(
- "object has no key set, class ["+ getClass().getName() +"]"); }
+ public JS.Enumeration keys() throws JSExn {
+ throw new JSExn("object has no key set, 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 on class ["+ getClass().getName() +"]"); }
+ public void put(JS key, JS val) throws JSExn {
+ throw new JSExn("'" + key + "' is read only on class ["+ getClass().getName() +"]"); }
public InputStream getInputStream() throws IOException, JSExn { throw new JSExn(
"object has not associated stream, class ["+ getClass().getName() +"]"); }
"object cannot be called, class ["+ getClass().getName() +"]"); }
public void pause() { throw new NotPausableException(); }
- public JS call(JS[] args) throws JSExn { throw new JSExn( "object cannot be called, class ["+ getClass().getName() +"]"); }
public JS call(JS method, JS[] args) throws JSExn {
- if (method == null) return call(args);
+ if (method == null) throw new JSExn( "object cannot be called, class ["+ getClass().getName() +"]");
throw new JSExn("method not found: " + JSU.str(method) + " class="+this.getClass().getName());
}
public String[] getFormalArgs() { return emptystr; }
- public void declare(JS key) throws JSExn { throw new JSExn(
- "object cannot declare key: "+ JSU.str(key)); }
- public void undeclare(JS key) throws JSExn { } // FIXME throw error?
-
public JS putAndTriggerTraps(JS key, JS val) throws JSExn { throw new JSExn(
"'" + key + "' is trap read only on class ["+ getClass().getName() +"]"); }
public JS getAndTriggerTraps(JS key) throws JSExn { return null; } // FIXME throw errors?
//Log.warn(this, "'" + JSU.str(key) + "' is not trappable on class ["+ getClass().getName() +"]");
return null;
}
-
- public String coerceToString() { return "object"; }
+ public String coerceToString() throws JSExn {
+ throw new JSExn("cannot coerce a " + getClass().getName() + " to a string"); }
}
public interface Cloneable {}
public static class Clone implements JS {
protected final JS clonee;
public Clone(JS clonee) throws JSExn {
- if (!(clonee instanceof Cloneable)) throw new JSExn(
- clonee.getClass().getName() + " is not implement cloneable");
+ if (!(clonee instanceof Cloneable)) throw new JSExn(clonee.getClass().getName() + " is not implement cloneable");
this.clonee = clonee;
}
-
public JS unclone() { return clonee.unclone(); }
public boolean equals(Object o) { return clonee.equals(o); }
-
public Enumeration keys() throws JSExn { return clonee.keys(); }
public JS get(JS k) throws JSExn { return clonee.get(k); }
public void put(JS k, JS v) throws JSExn { clonee.put(k, v); }
- public InputStream getInputStream() throws IOException, JSExn {
- return clonee.getInputStream(); }
+
+ // FIMXE: cloning Fountains...
+ //public InputStream getInputStream() throws IOException, JSExn { return clonee.getInputStream(); }
public Object run(Object o) throws Exception { return clonee.run(o); }
public void pause() { clonee.pause(); }
-
public JS call(JS m, JS[] a) throws JSExn { return clonee.call(m, a); }
- public JS call(JS[] a) throws JSExn { return clonee.call(a); }
public String[] getFormalArgs() { return clonee.getFormalArgs(); }
-
- public JS putAndTriggerTraps(JS k, JS v) throws JSExn {
- return clonee.putAndTriggerTraps(k, v); }
- public JS getAndTriggerTraps(JS k) throws JSExn {
- return clonee.getAndTriggerTraps(k); }
- public JS justTriggerTraps(JS k, JS v) throws JSExn {
- return clonee.justTriggerTraps(k, v); }
-
+ public JS putAndTriggerTraps(JS k, JS v) throws JSExn { return clonee.putAndTriggerTraps(k, v); }
+ public JS getAndTriggerTraps(JS k) throws JSExn { return clonee.getAndTriggerTraps(k); }
+ public JS justTriggerTraps(JS k, JS v) throws JSExn { return clonee.justTriggerTraps(k, v); }
public void addTrap(JS k, JS f) throws JSExn { clonee.addTrap(k, f); }
public void delTrap(JS k, JS f) throws JSExn { clonee.delTrap(k, f); }
public Trap getTrap(JS k) throws JSExn { return clonee.getTrap(k); }
-
- public String coerceToString() { return clonee.coerceToString(); }
+ public String coerceToString() throws JSExn { return clonee.coerceToString(); }
}
public static class Obj extends Basket.HashMap implements JS {
public Obj() { super(3, 4, 0.75F); }
public JS unclone() { return this; }
- public InputStream getInputStream() throws IOException, JSExn { throw new JSExn(
- "object has not associated stream, class ["+ getClass().getName() +"]"); }
- public Object run(Object o) throws Exception { throw new JSExn(
- "object cannot be called, class ["+ getClass().getName() +"]"); }
+ public Object run(Object o) throws Exception {
+ throw new JSExn("object cannot be called, class ["+ getClass().getName() +"]"); }
public void pause() { throw new NotPausableException(); }
- public JS call(JS[] args) throws JSExn { throw new JSExn(
- "object cannot be called, class ["+ getClass().getName() +"]"); }
- public JS call(JS method, JS[] args) throws JSExn { throw new JSExn(
- "method not found: " + JSU.str(method)); }
+ public JS call(JS method, JS[] args) throws JSExn {
+ if (method==null) throw new JSExn("cannot call a " + getClass().getName());
+ throw new JSExn("method not found: " + JSU.str(method)); }
public String[] getFormalArgs() { return emptystr; }
public Enumeration keys() throws JSExn {
public JS get(JS key) throws JSExn { return (JS)super.get(key, 0); }
public void put(JS key, JS val) throws JSExn { super.put(key, val, 0); }
- /*public boolean hasValue(JS key, JS value) {
- int i = indexOf(key); return i >= 0 && entries[i + 1] != null; }
- public boolean hasTrap(JS key, JS trap) {
- int i = indexOf(key); return i >= 0 && entries[i + 2] != null; }*/
-
public JS putAndTriggerTraps(JS key, JS val) throws JSExn {
Trap t = (Trap)super.get(key, 1);
- if (t != null && (t = t.write()) != null)
- val = (JS)new Interpreter(t, val, false).run(null);
+ if (t != null && (t = t.write()) != null) val = (JS)new Interpreter(t, val, false).run(null);
put(key, val); // HACK: necessary for subclasses overriding put()
- /*if (i < 0) i = put(i, key);
- if (val == null) entries[i + 1] = holder;
- else entries[i + 1] = val;*/
return val;
}
public JS getAndTriggerTraps(JS key) throws JSExn {
public Trap getTrap(JS key) throws JSExn { return (Trap)super.get(key, 1); }
- public String coerceToString() { return "object"; }
+ public String coerceToString() throws JSExn {
+ throw new JSExn("cannot coerce a " + getClass().getName() + " to a string"); }
private static final class Placeholder implements Serializable {}
private final JS target, key, function;
private Trap next;
TrapHolder(JS t, JS k, JS f, Trap n) { target = t; key = k; function = f; next = n; }
-
public JS key() { return key; }
public JS target() { return target; }
public JS function() { return function; }
-
- public boolean isReadTrap() {
- return function.getFormalArgs() == null || function.getFormalArgs().length == 0; }
- public boolean isWriteTrap() {
- return function.getFormalArgs() != null && function.getFormalArgs().length != 0; }
-
+ public boolean isReadTrap() { return function.getFormalArgs() == null || function.getFormalArgs().length == 0; }
+ public boolean isWriteTrap() { return function.getFormalArgs() != null && function.getFormalArgs().length != 0; }
public Trap next() { return next; }
- public Trap nextRead() {
- Trap t = next; while (t != null && t.isWriteTrap()) t = t.next(); return t; }
- public Trap nextWrite() {
- Trap t = next; while (t != null && t.isReadTrap()) t = t.next(); return t; }
+ public Trap nextRead() { Trap t = next; while (t != null && t.isWriteTrap()) t = t.next(); return t; }
+ public Trap nextWrite() { Trap t = next; while (t != null && t.isReadTrap()) t = t.next(); return t; }
public Trap read() { return isReadTrap() ? this : nextRead(); }
public Trap write() { return isWriteTrap() ? this : nextWrite(); }
}
protected abstract boolean _hasNext();
protected abstract JS _next() throws JSExn;
- public final boolean hasNext() {
- return _hasNext() || (parent != null ? parent.hasNext() : false); }
+ public final boolean hasNext() { return _hasNext() || (parent != null ? parent.hasNext() : false); }
public final JS next() throws JSExn {
if (_hasNext()) return _next();
if (parent == null) throw new NoSuchElementException("reached end of set");
public static final class RandomAccessList extends Enumeration {
private final List l;
private int pos = 0, size;
- public RandomAccessList(Enumeration parent, List list) {
- super(parent); l = list; size = l.size(); }
+ public RandomAccessList(Enumeration parent, List list) { super(parent); l = list; size = l.size(); }
protected boolean _hasNext() { return pos < size; }
protected JS _next() { return (JS)l.get(pos++); }
}
projects / org.ibex.js.git / blobdiff