package org.ibex.js;
-import java.io.*;
-import org.ibex.util.*;
-
/** A JavaScript function, compiled into bytecode */
-// FIXME: This shouldn't be public, needed for public add/delTrap (which is needed for the Template.java hack)
-public class JSFunction extends JS implements ByteCodes, Tokens, Task {
-
+class JSFunction extends JS.Immutable implements ByteCodes, Tokens {
+ private static final JS[] emptyArgs = new JS[0];
// Fields and Accessors ///////////////////////////////////////////////
// Public //////////////////////////////////////////////////////////////////////////////
- // FEATURE: make sure that this can only be called from the Scheduler...
- /** if you enqueue a function, it gets invoked in its own pauseable context */
- public void perform() throws JSExn {
- Interpreter i = new Interpreter(this, true, new Interpreter.JSArgs(this));
- i.resume();
+ // FIXME: what needs to be syncrhonized (if anything)?
+ private Interpreter runner = null;
+ public Object run(Object o) throws JSExn {
+ if (runner == null) runner = new Interpreter(this, true, emptyArgs);
+ Object ret = runner.run(o);
+ if (runner.f == null) runner = null;
+ return ret;
+ }
+ public void pause() throws NotPausableException {
+ if (runner == null) throw new NotPausableException();
+ runner.pause();
}
public JSFunction _cloneWithNewParentScope(JSScope s) {
return ret;
}
- /** Note: code gets run in an <i>unpauseable</i> context. */
- public JS call(JS a0, JS a1, JS a2, JS[] rest, int nargs) throws JSExn {
- Interpreter cx = new Interpreter(this, false, new Interpreter.JSArgs(a0,a1,a2,rest,nargs,this));
- return cx.resume();
- }
+ public JS call(JS[] args) throws JSExn { return (JS)new Interpreter(this, false, args).run(null); }
- public JSScope getParentScope() { return parentScope; }
+ JSScope getParentScope() { return parentScope; }
// Adding and Altering Bytecodes ///////////////////////////////////////////////////
if (op[i] < 0) sb.append(bytecodeToString[-op[i]]);
else sb.append(codeToString[op[i]]);
sb.append(" ");
- sb.append(arg[i] == null ? "(no arg)" : arg[i] instanceof JS ? JS.debugToString((JS)arg[i]) : arg[i]);
+ sb.append(arg[i] == null ? "(no arg)" : arg[i] instanceof JS ? Script.str((JS)arg[i]) : arg[i]);
if((op[i] == JF || op[i] == JT || op[i] == JMP) && arg[i] != null && arg[i] instanceof Number) {
sb.append(" jump to ").append(i+((Number) arg[i]).intValue());
} else if(op[i] == TRY) {