Removed file/folder for ishmal

(bzr r478)

1 files changed, 0 insertions, 4284 deletions

diff --git a/src/dom/js/jsinterp.c b/src/dom/js/jsinterp.c
deleted file mode 100644
index 60f39b3ce..000000000
--- a/src/dom/js/jsinterp.c
+++ /dev/null
@@ -1,4284 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
- *
- * ***** BEGIN LICENSE BLOCK *****
- * Version: MPL 1.1/GPL 2.0/LGPL 2.1
- *
- * The contents of this file are subject to the Mozilla Public License Version
- * 1.1 (the "License"); you may not use this file except in compliance with
- * the License. You may obtain a copy of the License at
- * http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS IS" basis,
- * WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
- * for the specific language governing rights and limitations under the
- * License.
- *
- * The Original Code is Mozilla Communicator client code, released
- * March 31, 1998.
- *
- * The Initial Developer of the Original Code is
- * Netscape Communications Corporation.
- * Portions created by the Initial Developer are Copyright (C) 1998
- * the Initial Developer. All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the terms of
- * either of the GNU General Public License Version 2 or later (the "GPL"),
- * or the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
- * in which case the provisions of the GPL or the LGPL are applicable instead
- * of those above. If you wish to allow use of your version of this file only
- * under the terms of either the GPL or the LGPL, and not to allow others to
- * use your version of this file under the terms of the MPL, indicate your
- * decision by deleting the provisions above and replace them with the notice
- * and other provisions required by the GPL or the LGPL. If you do not delete
- * the provisions above, a recipient may use your version of this file under
- * the terms of any one of the MPL, the GPL or the LGPL.
- *
- * ***** END LICENSE BLOCK ***** */
-
-/* build on macs with low memory */
-#if defined(XP_MAC) && defined(MOZ_MAC_LOWMEM)
-#pragma optimization_level 1
-#endif
-
-/*
- * JavaScript bytecode interpreter.
- */
-#include "jsstddef.h"
-#include <stdio.h>
-#include <string.h>
-#include <math.h>
-#include "jstypes.h"
-#include "jsarena.h" /* Added by JSIFY */
-#include "jsutil.h" /* Added by JSIFY */
-#include "jsprf.h"
-#include "jsapi.h"
-#include "jsarray.h"
-#include "jsatom.h"
-#include "jsbool.h"
-#include "jscntxt.h"
-#include "jsconfig.h"
-#include "jsdbgapi.h"
-#include "jsfun.h"
-#include "jsgc.h"
-#include "jsinterp.h"
-#include "jslock.h"
-#include "jsnum.h"
-#include "jsobj.h"
-#include "jsopcode.h"
-#include "jsscope.h"
-#include "jsscript.h"
-#include "jsstr.h"
-
-#if JS_HAS_JIT
-#include "jsjit.h"
-#endif
-
-#ifdef DEBUG
-#define ASSERT_CACHE_IS_EMPTY(cache)                                          \
-    JS_BEGIN_MACRO                                                            \
-        JSPropertyCacheEntry *end_, *pce_, entry_;                            \
-        JSPropertyCache *cache_ = (cache);                                    \
-        JS_ASSERT(cache_->empty);                                             \
-        end_ = &cache_->table[PROPERTY_CACHE_SIZE];                           \
-        for (pce_ = &cache_->table[0]; pce_ < end_; pce_++) {                 \
-            PCE_LOAD(cache_, pce_, entry_);                                   \
-            JS_ASSERT(!PCE_OBJECT(entry_));                                   \
-            JS_ASSERT(!PCE_PROPERTY(entry_));                                 \
-        }                                                                     \
-    JS_END_MACRO
-#else
-#define ASSERT_CACHE_IS_EMPTY(cache) ((void)0)
-#endif
-
-void
-js_FlushPropertyCache(JSContext *cx)
-{
-    JSPropertyCache *cache;
-
-    cache = &cx->runtime->propertyCache;
-    if (cache->empty) {
-        ASSERT_CACHE_IS_EMPTY(cache);
-        return;
-    }
-    memset(cache->table, 0, sizeof cache->table);
-    cache->empty = JS_TRUE;
-#ifdef JS_PROPERTY_CACHE_METERING
-    cache->flushes++;
-#endif
-}
-
-void
-js_DisablePropertyCache(JSContext *cx)
-{
-    JS_ASSERT(!cx->runtime->propertyCache.disabled);
-    cx->runtime->propertyCache.disabled = JS_TRUE;
-}
-
-void
-js_EnablePropertyCache(JSContext *cx)
-{
-    JS_ASSERT(cx->runtime->propertyCache.disabled);
-    ASSERT_CACHE_IS_EMPTY(&cx->runtime->propertyCache);
-    cx->runtime->propertyCache.disabled = JS_FALSE;
-}
-
-/*
- * Class for for/in loop property iterator objects.
- */
-#define JSSLOT_ITER_STATE   JSSLOT_PRIVATE
-
-static void
-prop_iterator_finalize(JSContext *cx, JSObject *obj)
-{
-    jsval iter_state;
-    jsval iteratee;
-
-    /* Protect against stillborn iterators. */
-    iter_state = obj->slots[JSSLOT_ITER_STATE];
-    iteratee = obj->slots[JSSLOT_PARENT];
-    if (!JSVAL_IS_NULL(iter_state) && !JSVAL_IS_PRIMITIVE(iteratee)) {
-        OBJ_ENUMERATE(cx, JSVAL_TO_OBJECT(iteratee), JSENUMERATE_DESTROY,
-                      &iter_state, NULL);
-    }
-    js_RemoveRoot(cx->runtime, &obj->slots[JSSLOT_PARENT]);
-
-    /* XXX force the GC to restart so we can collect iteratee, if possible,
-           during the current collector activation */
-    cx->runtime->gcLevel++;
-}
-
-static JSClass prop_iterator_class = {
-    "PropertyIterator",
-    0,
-    JS_PropertyStub,  JS_PropertyStub,  JS_PropertyStub,  JS_PropertyStub,
-    JS_EnumerateStub, JS_ResolveStub,   JS_ConvertStub,   prop_iterator_finalize,
-    JSCLASS_NO_OPTIONAL_MEMBERS
-};
-
-/*
- * Stack macros and functions.  These all use a local variable, jsval *sp, to
- * point to the next free stack slot.  SAVE_SP must be called before any call
- * to a function that may invoke the interpreter.  RESTORE_SP must be called
- * only after return from js_Invoke, because only js_Invoke changes fp->sp.
- */
-#define PUSH(v)         (*sp++ = (v))
-#define POP()           (*--sp)
-#ifdef DEBUG
-#define SAVE_SP(fp)                                                           \
-    (JS_ASSERT((fp)->script || !(fp)->spbase || (sp) == (fp)->spbase),        \
-     (fp)->sp = sp)
-#else
-#define SAVE_SP(fp)     ((fp)->sp = sp)
-#endif
-#define RESTORE_SP(fp)  (sp = (fp)->sp)
-
-/*
- * Push the generating bytecode's pc onto the parallel pc stack that runs
- * depth slots below the operands.
- *
- * NB: PUSH_OPND uses sp, depth, and pc from its lexical environment.  See
- * js_Interpret for these local variables' declarations and uses.
- */
-#define PUSH_OPND(v)    (sp[-depth] = (jsval)pc, PUSH(v))
-#define STORE_OPND(n,v) (sp[(n)-depth] = (jsval)pc, sp[n] = (v))
-#define POP_OPND()      POP()
-#define FETCH_OPND(n)   (sp[n])
-
-/*
- * Push the jsdouble d using sp, depth, and pc from the lexical environment.
- * Try to convert d to a jsint that fits in a jsval, otherwise GC-alloc space
- * for it and push a reference.
- */
-#define STORE_NUMBER(cx, n, d)                                                \
-    JS_BEGIN_MACRO                                                            \
-        jsint i_;                                                             \
-        jsval v_;                                                             \
-                                                                              \
-        if (JSDOUBLE_IS_INT(d, i_) && INT_FITS_IN_JSVAL(i_)) {                \
-            v_ = INT_TO_JSVAL(i_);                                            \
-        } else {                                                              \
-            ok = js_NewDoubleValue(cx, d, &v_);                               \
-            if (!ok)                                                          \
-                goto out;                                                     \
-        }                                                                     \
-        STORE_OPND(n, v_);                                                    \
-    JS_END_MACRO
-
-#define FETCH_NUMBER(cx, n, d)                                                \
-    JS_BEGIN_MACRO                                                            \
-        jsval v_;                                                             \
-                                                                              \
-        v_ = FETCH_OPND(n);                                                   \
-        VALUE_TO_NUMBER(cx, v_, d);                                           \
-    JS_END_MACRO
-
-#define FETCH_INT(cx, n, i)                                                   \
-    JS_BEGIN_MACRO                                                            \
-        jsval v_ = FETCH_OPND(n);                                             \
-        if (JSVAL_IS_INT(v_)) {                                               \
-            i = JSVAL_TO_INT(v_);                                             \
-        } else {                                                              \
-            SAVE_SP(fp);                                                      \
-            ok = js_ValueToECMAInt32(cx, v_, &i);                             \
-            if (!ok)                                                          \
-                goto out;                                                     \
-        }                                                                     \
-    JS_END_MACRO
-
-#define FETCH_UINT(cx, n, ui)                                                 \
-    JS_BEGIN_MACRO                                                            \
-        jsval v_ = FETCH_OPND(n);                                             \
-        jsint i_;                                                             \
-        if (JSVAL_IS_INT(v_) && (i_ = JSVAL_TO_INT(v_)) >= 0) {               \
-            ui = (uint32) i_;                                                 \
-        } else {                                                              \
-            SAVE_SP(fp);                                                      \
-            ok = js_ValueToECMAUint32(cx, v_, &ui);                           \
-            if (!ok)                                                          \
-                goto out;                                                     \
-        }                                                                     \
-    JS_END_MACRO
-
-/*
- * Optimized conversion macros that test for the desired type in v before
- * homing sp and calling a conversion function.
- */
-#define VALUE_TO_NUMBER(cx, v, d)                                             \
-    JS_BEGIN_MACRO                                                            \
-        if (JSVAL_IS_INT(v)) {                                                \
-            d = (jsdouble)JSVAL_TO_INT(v);                                    \
-        } else if (JSVAL_IS_DOUBLE(v)) {                                      \
-            d = *JSVAL_TO_DOUBLE(v);                                          \
-        } else {                                                              \
-            SAVE_SP(fp);                                                      \
-            ok = js_ValueToNumber(cx, v, &d);                                 \
-            if (!ok)                                                          \
-                goto out;                                                     \
-        }                                                                     \
-    JS_END_MACRO
-
-#define POP_BOOLEAN(cx, v, b)                                                 \
-    JS_BEGIN_MACRO                                                            \
-        v = FETCH_OPND(-1);                                                   \
-        if (v == JSVAL_NULL) {                                                \
-            b = JS_FALSE;                                                     \
-        } else if (JSVAL_IS_BOOLEAN(v)) {                                     \
-            b = JSVAL_TO_BOOLEAN(v);                                          \
-        } else {                                                              \
-            SAVE_SP(fp);                                                      \
-            ok = js_ValueToBoolean(cx, v, &b);                                \
-            if (!ok)                                                          \
-                goto out;                                                     \
-        }                                                                     \
-        sp--;                                                                 \
-    JS_END_MACRO
-
-#define VALUE_TO_OBJECT(cx, v, obj)                                           \
-    JS_BEGIN_MACRO                                                            \
-        if (JSVAL_IS_OBJECT(v) && v != JSVAL_NULL) {                          \
-            obj = JSVAL_TO_OBJECT(v);                                         \
-        } else {                                                              \
-            SAVE_SP(fp);                                                      \
-            obj = js_ValueToNonNullObject(cx, v);                             \
-            if (!obj) {                                                       \
-                ok = JS_FALSE;                                                \
-                goto out;                                                     \
-            }                                                                 \
-        }                                                                     \
-    JS_END_MACRO
-
-#if JS_BUG_VOID_TOSTRING
-#define CHECK_VOID_TOSTRING(cx, v)                                            \
-    if (JSVAL_IS_VOID(v)) {                                                   \
-        JSString *str_;                                                       \
-        str_ = ATOM_TO_STRING(cx->runtime->atomState.typeAtoms[JSTYPE_VOID]); \
-        v = STRING_TO_JSVAL(str_);                                            \
-    }
-#else
-#define CHECK_VOID_TOSTRING(cx, v)  ((void)0)
-#endif
-
-#if JS_BUG_EAGER_TOSTRING
-#define CHECK_EAGER_TOSTRING(hint)  (hint = JSTYPE_STRING)
-#else
-#define CHECK_EAGER_TOSTRING(hint)  ((void)0)
-#endif
-
-#define VALUE_TO_PRIMITIVE(cx, v, hint, vp)                                   \
-    JS_BEGIN_MACRO                                                            \
-        if (JSVAL_IS_PRIMITIVE(v)) {                                          \
-            CHECK_VOID_TOSTRING(cx, v);                                       \
-            *vp = v;                                                          \
-        } else {                                                              \
-            SAVE_SP(fp);                                                      \
-            CHECK_EAGER_TOSTRING(hint);                                       \
-            ok = OBJ_DEFAULT_VALUE(cx, JSVAL_TO_OBJECT(v), hint, vp);         \
-            if (!ok)                                                          \
-                goto out;                                                     \
-        }                                                                     \
-    JS_END_MACRO
-
-JS_FRIEND_API(jsval *)
-js_AllocRawStack(JSContext *cx, uintN nslots, void **markp)
-{
-    jsval *sp;
-
-    if (markp)
-        *markp = JS_ARENA_MARK(&cx->stackPool);
-    JS_ARENA_ALLOCATE_CAST(sp, jsval *, &cx->stackPool, nslots * sizeof(jsval));
-    if (!sp) {
-        JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_STACK_OVERFLOW,
-                             (cx->fp && cx->fp->fun)
-                             ? JS_GetFunctionName(cx->fp->fun)
-                             : "script");
-    }
-    return sp;
-}
-
-JS_FRIEND_API(void)
-js_FreeRawStack(JSContext *cx, void *mark)
-{
-    JS_ARENA_RELEASE(&cx->stackPool, mark);
-}
-
-JS_FRIEND_API(jsval *)
-js_AllocStack(JSContext *cx, uintN nslots, void **markp)
-{
-    jsval *sp, *vp, *end;
-    JSArena *a;
-    JSStackHeader *sh;
-    JSStackFrame *fp;
-
-    /* Callers don't check for zero nslots: we do to avoid empty segments. */
-    if (nslots == 0) {
-        *markp = NULL;
-        return JS_ARENA_MARK(&cx->stackPool);
-    }
-
-    /* Allocate 2 extra slots for the stack segment header we'll likely need. */
-    sp = js_AllocRawStack(cx, 2 + nslots, markp);
-    if (!sp)
-        return NULL;
-
-    /* Try to avoid another header if we can piggyback on the last segment. */
-    a = cx->stackPool.current;
-    sh = cx->stackHeaders;
-    if (sh && JS_STACK_SEGMENT(sh) + sh->nslots == sp) {
-        /* Extend the last stack segment, give back the 2 header slots. */
-        sh->nslots += nslots;
-        a->avail -= 2 * sizeof(jsval);
-    } else {
-        /*
-         * Need a new stack segment, so we must initialize unused slots in the
-         * current frame.  See js_GC, just before marking the "operand" jsvals,
-         * where we scan from fp->spbase to fp->sp or through fp->script->depth
-         * (whichever covers fewer slots).
-         */
-        fp = cx->fp;
-        if (fp && fp->script && fp->spbase) {
-#ifdef DEBUG
-            jsuword depthdiff = fp->script->depth * sizeof(jsval);
-            JS_ASSERT(JS_UPTRDIFF(fp->sp, fp->spbase) <= depthdiff);
-            JS_ASSERT(JS_UPTRDIFF(*markp, fp->spbase) >= depthdiff);
-#endif
-            end = fp->spbase + fp->script->depth;
-            for (vp = fp->sp; vp < end; vp++)
-                *vp = JSVAL_VOID;
-        }
-
-        /* Allocate and push a stack segment header from the 2 extra slots. */
-        sh = (JSStackHeader *)sp;
-        sh->nslots = nslots;
-        sh->down = cx->stackHeaders;
-        cx->stackHeaders = sh;
-        sp += 2;
-    }
-
-    return sp;
-}
-
-JS_FRIEND_API(void)
-js_FreeStack(JSContext *cx, void *mark)
-{
-    JSStackHeader *sh;
-    jsuword slotdiff;
-
-    /* Check for zero nslots allocation special case. */
-    if (!mark)
-        return;
-
-    /* We can assert because js_FreeStack always balances js_AllocStack. */
-    sh = cx->stackHeaders;
-    JS_ASSERT(sh);
-
-    /* If mark is in the current segment, reduce sh->nslots, else pop sh. */
-    slotdiff = JS_UPTRDIFF(mark, JS_STACK_SEGMENT(sh)) / sizeof(jsval);
-    if (slotdiff < (jsuword)sh->nslots)
-        sh->nslots = slotdiff;
-    else
-        cx->stackHeaders = sh->down;
-
-    /* Release the stackPool space allocated since mark was set. */
-    JS_ARENA_RELEASE(&cx->stackPool, mark);
-}
-
-/*
- * To economize on slots space in functions, the compiler records arguments and
- * local variables as shared (JSPROP_SHARED) properties with well-known getters
- * and setters: js_{Get,Set}Argument, js_{Get,Set}LocalVariable.  Now, we could
- * record args and vars in lists or hash tables in function-private data, but
- * that means more duplication in code, and more data at runtime in the hash
- * table case due to round-up to powers of two, just to recapitulate the scope
- * machinery in the function object.
- *
- * What's more, for a long time (to the dawn of "Mocha" in 1995), these getters
- * and setters knew how to search active stack frames in a context to find the
- * top activation of the function f, in order to satisfy a get or set of f.a,
- * for argument a, or f.x, for local variable x.  You could use f.a instead of
- * just a in function f(a) { return f.a }, for example, to return the actual
- * parameter.
- *
- * ECMA requires that we give up on this ancient extension, because it is not
- * compatible with the standard as used by real-world scripts.  While Chapter
- * 16 does allow for additional properties to be defined on native objects by
- * a conforming implementation, these magic getters and setters cause f.a's
- * meaning to vary unexpectedly.  Real-world scripts set f.A = 42 to define
- * "class static" (after Java) constants, for example, but if A also names an
- * arg or var in f, the constant is not available while f is active, and any
- * non-constant class-static can't be set while f is active.
- *
- * So, to label arg and var properties in functions without giving them magic
- * abilities to affect active frame stack slots, while keeping the properties
- * shared (slot-less) to save space in the common case (where no assignment
- * sets a function property with the same name as an arg or var), the setters
- * for args and vars must handle two special cases here.
- *
- * XXX functions tend to have few args and vars, so we risk O(n^2) growth here
- * XXX ECMA *really* wants args and vars to be stored in function-private data,
- *     not as function object properties.
- */
-static JSBool
-SetFunctionSlot(JSContext *cx, JSObject *obj, JSPropertyOp setter, jsid id,
-                jsval v)
-{
-    uintN slot;
-    JSObject *origobj;
-    JSScope *scope;
-    JSScopeProperty *sprop;
-    JSString *str;
-    JSBool ok;
-
-    slot = (uintN) JSVAL_TO_INT(id);
-    if (OBJ_GET_CLASS(cx, obj) != &js_FunctionClass) {
-        /*
-         * Given a non-function object obj that has a function object in its
-         * prototype chain, where an argument or local variable property named
-         * by (setter, slot) is being set, override the shared property in the
-         * prototype with an unshared property in obj.  This situation arises
-         * in real-world JS due to .prototype setting and collisions among a
-         * function's "static property" names and arg or var names, believe it
-         * or not.
-         */
-        origobj = obj;
-        do {
-            obj = OBJ_GET_PROTO(cx, obj);
-            if (!obj)
-                return JS_TRUE;
-        } while (OBJ_GET_CLASS(cx, obj) != &js_FunctionClass);
-
-        JS_LOCK_OBJ(cx, obj);
-        scope = OBJ_SCOPE(obj);
-        for (sprop = SCOPE_LAST_PROP(scope); sprop; sprop = sprop->parent) {
-            if (sprop->setter == setter) {
-                JS_ASSERT(!JSVAL_IS_INT(sprop->id) &&
-                          ATOM_IS_STRING((JSAtom *)sprop->id) &&
-                          (sprop->flags & SPROP_HAS_SHORTID));
-
-                if ((uintN) sprop->shortid == slot) {
-                    str = ATOM_TO_STRING((JSAtom *)sprop->id);
-                    JS_UNLOCK_SCOPE(cx, scope);
-
-                    return JS_DefineUCProperty(cx, origobj,
-                                               JSSTRING_CHARS(str),
-                                               JSSTRING_LENGTH(str),
-                                               v, NULL, NULL,
-                                               JSPROP_ENUMERATE);
-                }
-            }
-        }
-        JS_UNLOCK_SCOPE(cx, scope);
-        return JS_TRUE;
-    }
-
-    /*
-     * Argument and local variable properties of function objects are shared
-     * by default (JSPROP_SHARED), therefore slot-less.  But if for function
-     * f(a) {}, f.a = 42 is evaluated, f.a should be 42 after the assignment,
-     * whether or not f is active.  So js_SetArgument and js_SetLocalVariable
-     * must be prepared to change an arg or var from shared to unshared status,
-     * allocating a slot in obj to hold v.
-     */
-    ok = JS_TRUE;
-    JS_LOCK_OBJ(cx, obj);
-    scope = OBJ_SCOPE(obj);
-    for (sprop = SCOPE_LAST_PROP(scope); sprop; sprop = sprop->parent) {
-        if (sprop->setter == setter && (uintN) sprop->shortid == slot) {
-            if (sprop->attrs & JSPROP_SHARED) {
-                sprop = js_ChangeScopePropertyAttrs(cx, scope, sprop,
-                                                    0, ~JSPROP_SHARED,
-                                                    sprop->getter, setter);
-                if (!sprop) {
-                    ok = JS_FALSE;
-                } else {
-                    /* See js_SetProperty, near the bottom. */
-                    GC_POKE(cx, pval);
-                    LOCKED_OBJ_SET_SLOT(obj, sprop->slot, v);
-                }
-            }
-            break;
-        }
-    }
-    JS_UNLOCK_SCOPE(cx, scope);
-    return ok;
-}
-
-JSBool
-js_GetArgument(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
-{
-    return JS_TRUE;
-}
-
-JSBool
-js_SetArgument(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
-{
-    return SetFunctionSlot(cx, obj, js_SetArgument, id, *vp);
-}
-
-JSBool
-js_GetLocalVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
-{
-    return JS_TRUE;
-}
-
-JSBool
-js_SetLocalVariable(JSContext *cx, JSObject *obj, jsval id, jsval *vp)
-{
-    return SetFunctionSlot(cx, obj, js_SetLocalVariable, id, *vp);
-}
-
-/*
- * Compute the 'this' parameter and store it in frame as frame.thisp.
- * Activation objects ("Call" objects not created with "new Call()", i.e.,
- * "Call" objects that have private data) may not be referred to by 'this',
- * as dictated by ECMA.
- *
- * N.B.: fp->argv must be set, fp->argv[-1] the nominal 'this' paramter as
- * a jsval, and fp->argv[-2] must be the callee object reference, usually a
- * function object.  Also, fp->flags must contain JSFRAME_CONSTRUCTING if we
- * are preparing for a constructor call.
- */
-static JSBool
-ComputeThis(JSContext *cx, JSObject *thisp, JSStackFrame *fp)
-{
-    JSObject *parent;
-
-    if (thisp && OBJ_GET_CLASS(cx, thisp) != &js_CallClass) {
-        /* Some objects (e.g., With) delegate 'this' to another object. */
-        thisp = OBJ_THIS_OBJECT(cx, thisp);
-        if (!thisp)
-            return JS_FALSE;
-
-        /* Default return value for a constructor is the new object. */
-        if (fp->flags & JSFRAME_CONSTRUCTING)
-            fp->rval = OBJECT_TO_JSVAL(thisp);
-    } else {
-        /*
-         * ECMA requires "the global object", but in the presence of multiple
-         * top-level objects (windows, frames, or certain layers in the client
-         * object model), we prefer fun's parent.  An example that causes this
-         * code to run:
-         *
-         *   // in window w1
-         *   function f() { return this }
-         *   function g() { return f }
-         *
-         *   // in window w2
-         *   var h = w1.g()
-         *   alert(h() == w1)
-         *
-         * The alert should display "true".
-         */
-        JS_ASSERT(!(fp->flags & JSFRAME_CONSTRUCTING));
-        if (JSVAL_IS_PRIMITIVE(fp->argv[-2]) ||
-            !(parent = OBJ_GET_PARENT(cx, JSVAL_TO_OBJECT(fp->argv[-2])))) {
-            thisp = cx->globalObject;
-        } else {
-            /* walk up to find the top-level object */
-            thisp = parent;
-            while ((parent = OBJ_GET_PARENT(cx, thisp)) != NULL)
-                thisp = parent;
-        }
-    }
-    fp->thisp = thisp;
-    fp->argv[-1] = OBJECT_TO_JSVAL(thisp);
-    return JS_TRUE;
-}
-
-/*
- * Find a function reference and its 'this' object implicit first parameter
- * under argc arguments on cx's stack, and call the function.  Push missing
- * required arguments, allocate declared local variables, and pop everything
- * when done.  Then push the return value.
- */
-JS_FRIEND_API(JSBool)
-js_Invoke(JSContext *cx, uintN argc, uintN flags)
-{
-    void *mark;
-    JSStackFrame *fp, frame;
-    jsval *sp, *newsp, *limit;
-    jsval *vp, v;
-    JSObject *funobj, *parent, *thisp;
-    JSBool ok;
-    JSClass *clasp;
-    JSObjectOps *ops;
-    JSNative native;
-    JSFunction *fun;
-    JSScript *script;
-    uintN minargs, nvars;
-    intN nslots, nalloc, surplus;
-    JSInterpreterHook hook;
-    void *hookData;
-
-    /* Mark the top of stack and load frequently-used registers. */
-    mark = JS_ARENA_MARK(&cx->stackPool);
-    fp = cx->fp;
-    sp = fp->sp;
-
-    /*
-     * Set vp to the callee value's stack slot (it's where rval goes).
-     * Once vp is set, control should flow through label out2: to return.
-     * Set frame.rval early so native class and object ops can throw and
-     * return false, causing a goto out2 with ok set to false.  Also set
-     * frame.flags to flags so that ComputeThis can test bits in it.
-     */
-    vp = sp - (2 + argc);
-    v = *vp;
-    frame.rval = JSVAL_VOID;
-    frame.flags = flags;
-    thisp = JSVAL_TO_OBJECT(vp[1]);
-
-    /*
-     * A callee must be an object reference, unless its |this| parameter
-     * implements the __noSuchMethod__ method, in which case that method will
-     * be called like so:
-     *
-     *   thisp.__noSuchMethod__(id, args)
-     *
-     * where id is the name of the method that this invocation attempted to
-     * call by name, and args is an Array containing this invocation's actual
-     * parameters.
-     */
-    if (JSVAL_IS_PRIMITIVE(v)) {
-#if JS_HAS_NO_SUCH_METHOD
-        jsbytecode *pc;
-        jsatomid atomIndex;
-        JSAtom *atom;
-        JSObject *argsobj;
-        JSArena *a;
-
-        if (!fp->script || (flags & JSINVOKE_INTERNAL))
-            goto bad;
-
-        /*
-         * We must ComputeThis here to censor Call objects; performance hit,
-         * but at least it's idempotent.
-         *
-         * Normally, we call ComputeThis after all frame members have been
-         * set, and in particular, after any revision of the callee value at
-         * *vp  due to clasp->convert (see below).  This matters because
-         * ComputeThis may access *vp via fp->argv[-2], to follow the parent
-         * chain to a global object to use as the |this| parameter.
-         *
-         * Obviously, here in the JSVAL_IS_PRIMITIVE(v) case, there can't be
-         * any such defaulting of |this| to callee (v, *vp) ancestor.
-         */
-        frame.argv = vp + 2;
-        ok = ComputeThis(cx, thisp, &frame);
-        if (!ok)
-            goto out2;
-        thisp = frame.thisp;
-
-        ok = OBJ_GET_PROPERTY(cx, thisp,
-                              (jsid)cx->runtime->atomState.noSuchMethodAtom,
-                              &v);
-        if (!ok)
-            goto out2;
-        if (JSVAL_IS_PRIMITIVE(v))
-            goto bad;
-
-        pc = (jsbytecode *) vp[-(intN)fp->script->depth];
-        switch ((JSOp) *pc) {
-          case JSOP_NAME:
-          case JSOP_GETPROP:
-            atomIndex = GET_ATOM_INDEX(pc);
-            atom = js_GetAtom(cx, &fp->script->atomMap, atomIndex);
-            argsobj = js_NewArrayObject(cx, argc, vp + 2);
-            if (!argsobj) {
-                ok = JS_FALSE;
-                goto out2;
-            }
-
-            sp = vp + 4;
-            if (argc < 2) {
-                a = cx->stackPool.current;
-                if ((jsuword)sp > a->limit) {
-                    /*
-                     * Arguments must be contiguous, and must include argv[-1]
-                     * and argv[-2], so allocate more stack, advance sp, and
-                     * set newsp[1] to thisp (vp[1]).  The other argv elements
-                     * will be set below, using negative indexing from sp.
-                     */
-                    newsp = js_AllocRawStack(cx, 4, NULL);
-                    if (!newsp) {
-                        ok = JS_FALSE;
-                        goto out2;
-                    }
-                    newsp[1] = OBJECT_TO_JSVAL(thisp);
-                    sp = newsp + 4;
-                } else if ((jsuword)sp > a->avail) {
-                    /*
-                     * Inline, optimized version of JS_ARENA_ALLOCATE to claim
-                     * the small number of words not already allocated as part
-                     * of the caller's operand stack.
-                     */
-                    JS_ArenaCountAllocation(pool, (jsuword)sp - a->avail);
-                    a->avail = (jsuword)sp;
-                }
-            }
-
-            sp[-4] = v;
-            JS_ASSERT(sp[-3] == OBJECT_TO_JSVAL(thisp));
-            sp[-2] = ATOM_KEY(atom);
-            sp[-1] = OBJECT_TO_JSVAL(argsobj);
-            fp->sp = sp;
-            argc = 2;
-            break;
-
-          default:
-            goto bad;
-        }
-#else
-        goto bad;
-#endif
-    }
-
-    funobj = JSVAL_TO_OBJECT(v);
-    parent = OBJ_GET_PARENT(cx, funobj);
-    clasp = OBJ_GET_CLASS(cx, funobj);
-    if (clasp != &js_FunctionClass) {
-        /* Function is inlined, all other classes use object ops. */
-        ops = funobj->map->ops;
-
-        /*
-         * XXX
-         * Try converting to function, for closure and API compatibility.
-         * We attempt the conversion under all circumstances for 1.2, but
-         * only if there is a call op defined otherwise.
-         */
-        if (cx->version == JSVERSION_1_2 ||
-            ((ops == &js_ObjectOps) ? clasp->call : ops->call)) {
-            ok = clasp->convert(cx, funobj, JSTYPE_FUNCTION, &v);
-            if (!ok)
-                goto out2;
-
-            if (JSVAL_IS_FUNCTION(cx, v)) {
-                /* Make vp refer to funobj to keep it available as argv[-2]. */
-                *vp = v;
-                funobj = JSVAL_TO_OBJECT(v);
-                parent = OBJ_GET_PARENT(cx, funobj);
-                goto have_fun;
-            }
-        }
-        fun = NULL;
-        script = NULL;
-        minargs = nvars = 0;
-
-        /* Try a call or construct native object op. */
-        native = (flags & JSINVOKE_CONSTRUCT) ? ops->construct : ops->call;
-        if (!native)
-            goto bad;
-    } else {
-have_fun:
-        /* Get private data and set derived locals from it. */
-        fun = (JSFunction *) JS_GetPrivate(cx, funobj);
-        native = fun->native;
-        script = fun->script;
-        minargs = fun->nargs + fun->extra;
-        nvars = fun->nvars;
-
-        /* Handle bound method special case. */
-        if (fun->flags & JSFUN_BOUND_METHOD)
-            thisp = parent;
-    }
-
-    /* Initialize the rest of frame, except for sp (set by SAVE_SP later). */
-    frame.varobj = NULL;
-    frame.callobj = frame.argsobj = NULL;
-    frame.script = script;
-    frame.fun = fun;
-    frame.argc = argc;
-    frame.argv = sp - argc;
-    frame.nvars = nvars;
-    frame.vars = sp;
-    frame.down = fp;
-    frame.annotation = NULL;
-    frame.scopeChain = NULL;    /* set below for real, after cx->fp is set */
-    frame.pc = NULL;
-    frame.spbase = NULL;
-    frame.sharpDepth = 0;
-    frame.sharpArray = NULL;
-    frame.dormantNext = NULL;
-    frame.objAtomMap = NULL;
-
-    /* Compute the 'this' parameter and store it in frame as frame.thisp. */
-    ok = ComputeThis(cx, thisp, &frame);
-    if (!ok)
-        goto out2;
-
-    /* From here on, control must flow through label out: to return. */
-    cx->fp = &frame;
-
-    /* Init these now in case we goto out before first hook call. */
-    hook = cx->runtime->callHook;
-    hookData = NULL;
-
-    /* Check for missing arguments expected by the function. */
-    nslots = (intN)((argc < minargs) ? minargs - argc : 0);
-    if (nslots) {
-        /* All arguments must be contiguous, so we may have to copy actuals. */
-        nalloc = nslots;
-        limit = (jsval *) cx->stackPool.current->limit;
-        if (sp + nslots > limit) {
-            /* Hit end of arena: we have to copy argv[-2..(argc+nslots-1)]. */
-            nalloc += 2 + argc;
-        } else {
-            /* Take advantage of surplus slots in the caller's frame depth. */
-            surplus = (jsval *)mark - sp;
-            JS_ASSERT(surplus >= 0);
-            nalloc -= surplus;
-        }
-
-        /* Check whether we have enough space in the caller's frame. */
-        if (nalloc > 0) {
-            /* Need space for actuals plus missing formals minus surplus. */
-            newsp = js_AllocRawStack(cx, (uintN)nalloc, NULL);
-            if (!newsp) {
-                ok = JS_FALSE;
-                goto out;
-            }
-
-            /* If we couldn't allocate contiguous args, copy actuals now. */
-            if (newsp != mark) {
-                JS_ASSERT(sp + nslots > limit);
-                JS_ASSERT(2 + argc + nslots == (uintN)nalloc);
-                *newsp++ = vp[0];
-                *newsp++ = vp[1];
-                if (argc)
-                    memcpy(newsp, frame.argv, argc * sizeof(jsval));
-                frame.argv = newsp;
-                sp = frame.vars = newsp + argc;
-            }
-        }
-
-        /* Advance frame.vars to make room for the missing args. */
-        frame.vars += nslots;
-
-        /* Push void to initialize missing args. */
-        while (--nslots >= 0)
-            PUSH(JSVAL_VOID);
-    }
-
-    /* Now allocate stack space for local variables. */
-    nslots = (intN)frame.nvars;
-    if (nslots) {
-        surplus = (intN)((jsval *)cx->stackPool.current->avail - frame.vars);
-        if (surplus < nslots) {
-            newsp = js_AllocRawStack(cx, (uintN)nslots, NULL);
-            if (!newsp) {
-                ok = JS_FALSE;
-                goto out;
-            }
-            if (newsp != sp) {
-                /* NB: Discontinuity between argv and vars. */
-                sp = frame.vars = newsp;
-            }
-        }
-
-        /* Push void to initialize local variables. */
-        while (--nslots >= 0)
-            PUSH(JSVAL_VOID);
-    }
-
-    /* Store the current sp in frame before calling fun. */
-    SAVE_SP(&frame);
-
-    /* call the hook if present */
-    if (hook && (native || script))
-        hookData = hook(cx, &frame, JS_TRUE, 0, cx->runtime->callHookData);
-
-    /* Call the function, either a native method or an interpreted script. */
-    if (native) {
-#if JS_HAS_LVALUE_RETURN
-        /* Set by JS_SetCallReturnValue2, used to return reference types. */
-        cx->rval2set = JS_FALSE;
-#endif
-
-        /* If native, use caller varobj and scopeChain for eval. */
-        frame.varobj = fp->varobj;
-        frame.scopeChain = fp->scopeChain;
-        ok = native(cx, frame.thisp, argc, frame.argv, &frame.rval);
-        JS_RUNTIME_METER(cx->runtime, nativeCalls);
-    } else if (script) {
-        /* Use parent scope so js_GetCallObject can find the right "Call". */
-        frame.scopeChain = parent;
-        if (fun->flags & JSFUN_HEAVYWEIGHT) {
-#if JS_HAS_CALL_OBJECT
-            /* Scope with a call object parented by the callee's parent. */
-            if (!js_GetCallObject(cx, &frame, parent)) {
-                ok = JS_FALSE;
-                goto out;
-            }
-#else
-            /* Bad old code used the function as a proxy for all calls to it. */
-            frame.scopeChain = funobj;
-#endif
-        }
-        ok = js_Interpret(cx, &v);
-    } else {
-        /* fun might be onerror trying to report a syntax error in itself. */
-        frame.scopeChain = NULL;
-        ok = JS_TRUE;
-    }
-
-out:
-    if (hookData) {
-        hook = cx->runtime->callHook;
-        if (hook)
-            hook(cx, &frame, JS_FALSE, &ok, hookData);
-    }
-#if JS_HAS_CALL_OBJECT
-    /* If frame has a call object, sync values and clear back-pointer. */
-    if (frame.callobj)
-        ok &= js_PutCallObject(cx, &frame);
-#endif
-#if JS_HAS_ARGS_OBJECT
-    /* If frame has an arguments object, sync values and clear back-pointer. */
-    if (frame.argsobj)
-        ok &= js_PutArgsObject(cx, &frame);
-#endif
-
-    /* Restore cx->fp now that we're done releasing frame objects. */
-    cx->fp = fp;
-
-out2:
-    /* Pop everything we may have allocated off the stack. */
-    JS_ARENA_RELEASE(&cx->stackPool, mark);
-
-    /* Store the return value and restore sp just above it. */
-    *vp = frame.rval;
-    fp->sp = vp + 1;
-
-    /*
-     * Store the location of the JSOP_CALL or JSOP_EVAL that generated the
-     * return value, but only if this is an external (compiled from script
-     * source) call that has stack budget for the generating pc.
-     */
-    if (fp->script && !(flags & JSINVOKE_INTERNAL))
-        vp[-(intN)fp->script->depth] = (jsval)fp->pc;
-    return ok;
-
-bad:
-    js_ReportIsNotFunction(cx, vp, flags & JSINVOKE_CONSTRUCT);
-    ok = JS_FALSE;
-    goto out2;
-}
-
-JSBool
-js_InternalInvoke(JSContext *cx, JSObject *obj, jsval fval, uintN flags,
-                  uintN argc, jsval *argv, jsval *rval)
-{
-    JSStackFrame *fp, *oldfp, frame;
-    jsval *oldsp, *sp;
-    void *mark;
-    uintN i;
-    JSBool ok;
-
-    fp = oldfp = cx->fp;
-    if (!fp) {
-        memset(&frame, 0, sizeof frame);
-        cx->fp = fp = &frame;
-    }
-    oldsp = fp->sp;
-    sp = js_AllocStack(cx, 2 + argc, &mark);
-    if (!sp) {
-        ok = JS_FALSE;
-        goto out;
-    }
-
-    PUSH(fval);
-    PUSH(OBJECT_TO_JSVAL(obj));
-    for (i = 0; i < argc; i++)
-        PUSH(argv[i]);
-    fp->sp = sp;
-    ok = js_Invoke(cx, argc, flags | JSINVOKE_INTERNAL);
-    if (ok) {
-        RESTORE_SP(fp);
-        *rval = POP_OPND();
-    }
-
-    js_FreeStack(cx, mark);
-out:
-    fp->sp = oldsp;
-    if (oldfp != fp)
-        cx->fp = oldfp;
-
-    return ok;
-}
-
-JSBool
-js_InternalGetOrSet(JSContext *cx, JSObject *obj, jsid id, jsval fval,
-                    JSAccessMode mode, uintN argc, jsval *argv, jsval *rval)
-{
-    /*
-     * Check general (not object-ops/class-specific) access from the running
-     * script to obj.id only if id has a scripted getter or setter that we're
-     * about to invoke.  If we don't check this case, nothing else will -- no
-     * other native code has the chance to check.
-     *
-     * Contrast this non-native (scripted) case with native getter and setter
-     * accesses, where the native itself must do an access check, if security
-     * policies requires it.  We make a checkAccess or checkObjectAccess call
-     * back to the embedding program only in those cases where we're not going
-     * to call an embedding-defined native function, getter, setter, or class
-     * hook anyway.  Where we do call such a native, there's no need for the
-     * engine to impose a separate access check callback on all embeddings --
-     * many embeddings have no security policy at all.
-     */
-    JS_ASSERT(mode == JSACC_READ || mode == JSACC_WRITE);
-    if (cx->runtime->checkObjectAccess &&
-        JSVAL_IS_FUNCTION(cx, fval) &&
-        ((JSFunction *) JS_GetPrivate(cx, JSVAL_TO_OBJECT(fval)))->script &&
-        !cx->runtime->checkObjectAccess(cx, obj, ID_TO_VALUE(id), mode,
-                                        &fval)) {
-        return JS_FALSE;
-    }
-
-    return js_InternalCall(cx, obj, fval, argc, argv, rval);
-}
-
-JSBool
-js_Execute(JSContext *cx, JSObject *chain, JSScript *script,
-           JSStackFrame *down, uintN special, jsval *result)
-{
-    JSStackFrame *oldfp, frame;
-    JSObject *obj, *tmp;
-    JSBool ok;
-    JSInterpreterHook hook;
-    void *hookData;
-
-    hook = cx->runtime->executeHook;
-    hookData = NULL;
-    oldfp = cx->fp;
-    frame.callobj = frame.argsobj = NULL;
-    frame.script = script;
-    if (down) {
-        /* Propagate arg/var state for eval and the debugger API. */
-        frame.varobj = down->varobj;
-        frame.fun = down->fun;
-        frame.thisp = down->thisp;
-        frame.argc = down->argc;
-        frame.argv = down->argv;
-        frame.nvars = down->nvars;
-        frame.vars = down->vars;
-        frame.annotation = down->annotation;
-        frame.sharpArray = down->sharpArray;
-    } else {
-        obj = chain;
-        if (cx->options & JSOPTION_VAROBJFIX) {
-            while ((tmp = OBJ_GET_PARENT(cx, obj)) != NULL)
-                obj = tmp;
-        }
-        frame.varobj = obj;
-        frame.fun = NULL;
-        frame.thisp = chain;
-        frame.argc = frame.nvars = 0;
-        frame.argv = frame.vars = NULL;
-        frame.annotation = NULL;
-        frame.sharpArray = NULL;
-    }
-    frame.rval = JSVAL_VOID;
-    frame.down = down;
-    frame.scopeChain = chain;
-    frame.pc = NULL;
-    frame.sp = oldfp ? oldfp->sp : NULL;
-    frame.spbase = NULL;
-    frame.sharpDepth = 0;
-    frame.flags = special;
-    frame.dormantNext = NULL;
-    frame.objAtomMap = NULL;
-
-    /*
-     * Here we wrap the call to js_Interpret with code to (conditionally)
-     * save and restore the old stack frame chain into a chain of 'dormant'
-     * frame chains.  Since we are replacing cx->fp, we were running into
-     * the problem that if GC was called under this frame, some of the GC
-     * things associated with the old frame chain (available here only in
-     * the C variable 'oldfp') were not rooted and were being collected.
-     *
-     * So, now we preserve the links to these 'dormant' frame chains in cx
-     * before calling js_Interpret and cleanup afterwards.  The GC walks
-     * these dormant chains and marks objects in the same way that it marks
-     * objects in the primary cx->fp chain.
-     */
-    if (oldfp && oldfp != down) {
-        JS_ASSERT(!oldfp->dormantNext);
-        oldfp->dormantNext = cx->dormantFrameChain;
-        cx->dormantFrameChain = oldfp;
-    }
-
-    cx->fp = &frame;
-    if (hook)
-        hookData = hook(cx, &frame, JS_TRUE, 0, cx->runtime->executeHookData);
-
-    ok = js_Interpret(cx, result);
-
-    if (hookData) {
-        hook = cx->runtime->executeHook;
-        if (hook)
-            hook(cx, &frame, JS_FALSE, &ok, hookData);
-    }
-    cx->fp = oldfp;
-
-    if (oldfp && oldfp != down) {
-        JS_ASSERT(cx->dormantFrameChain == oldfp);
-        cx->dormantFrameChain = oldfp->dormantNext;
-        oldfp->dormantNext = NULL;
-    }
-
-    return ok;
-}
-
-#if JS_HAS_EXPORT_IMPORT
-/*
- * If id is JSVAL_VOID, import all exported properties from obj.
- */
-static JSBool
-ImportProperty(JSContext *cx, JSObject *obj, jsid id)
-{
-    JSBool ok;
-    JSIdArray *ida;
-    JSProperty *prop;
-    JSObject *obj2, *target, *funobj, *closure;
-    JSString *str;
-    uintN attrs;
-    jsint i;
-    jsval value;
-
-    if (JSVAL_IS_VOID(id)) {
-        ida = JS_Enumerate(cx, obj);
-        if (!ida)
-            return JS_FALSE;
-        ok = JS_TRUE;
-        if (ida->length == 0)
-            goto out;
-    } else {
-        ida = NULL;
-        if (!OBJ_LOOKUP_PROPERTY(cx, obj, id, &obj2, &prop))
-            return JS_FALSE;
-        if (!prop) {
-            str = js_DecompileValueGenerator(cx, JSDVG_IGNORE_STACK,
-                                             ID_TO_VALUE(id), NULL);
-            if (str)
-                js_ReportIsNotDefined(cx, JS_GetStringBytes(str));
-            return JS_FALSE;
-        }
-        ok = OBJ_GET_ATTRIBUTES(cx, obj, id, prop, &attrs);
-        OBJ_DROP_PROPERTY(cx, obj2, prop);
-        if (!ok)
-            return JS_FALSE;
-        if (!(attrs & JSPROP_EXPORTED)) {
-            str = js_DecompileValueGenerator(cx, JSDVG_IGNORE_STACK,
-                                             ID_TO_VALUE(id), NULL);
-            if (str) {
-                JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
-                                     JSMSG_NOT_EXPORTED,
-                                     JS_GetStringBytes(str));
-            }
-            return JS_FALSE;
-        }
-    }
-
-    target = cx->fp->varobj;
-    i = 0;
-    do {
-        if (ida) {
-            id = ida->vector[i];
-            ok = OBJ_GET_ATTRIBUTES(cx, obj, id, NULL, &attrs);
-            if (!ok)
-                goto out;
-            if (!(attrs & JSPROP_EXPORTED))
-                continue;
-        }
-        ok = OBJ_CHECK_ACCESS(cx, obj, id, JSACC_IMPORT, &value, &attrs);
-        if (!ok)
-            goto out;
-        if (JSVAL_IS_FUNCTION(cx, value)) {
-            funobj = JSVAL_TO_OBJECT(value);
-            closure = js_CloneFunctionObject(cx, funobj, obj);
-            if (!closure) {
-                ok = JS_FALSE;
-                goto out;
-            }
-            value = OBJECT_TO_JSVAL(closure);
-        }
-
-        /*
-         * Handle the case of importing a property that refers to a local
-         * variable or formal parameter of a function activation.  These
-         * properties are accessed by opcodes using stack slot numbers
-         * generated by the compiler rather than runtime name-lookup.  These
-         * local references, therefore, bypass the normal scope chain lookup.
-         * So, instead of defining a new property in the activation object,
-         * modify the existing value in the stack slot.
-         */
-        if (OBJ_GET_CLASS(cx, target) == &js_CallClass) {
-            ok = OBJ_LOOKUP_PROPERTY(cx, target, id, &obj2, &prop);
-            if (!ok)
-                goto out;
-        } else {
-            prop = NULL;
-        }
-        if (prop && target == obj2) {
-            ok = OBJ_SET_PROPERTY(cx, target, id, &value);
-        } else {
-            ok = OBJ_DEFINE_PROPERTY(cx, target, id, value, NULL, NULL,
-                                     attrs & ~JSPROP_EXPORTED,
-                                     NULL);
-        }
-        if (prop)
-            OBJ_DROP_PROPERTY(cx, obj2, prop);
-        if (!ok)
-            goto out;
-    } while (ida && ++i < ida->length);
-
-out:
-    if (ida)
-        JS_DestroyIdArray(cx, ida);
-    return ok;
-}
-#endif /* JS_HAS_EXPORT_IMPORT */
-
-JSBool
-js_CheckRedeclaration(JSContext *cx, JSObject *obj, jsid id, uintN attrs,
-                      JSBool *foundp)
-{
-    JSObject *obj2;
-    JSProperty *prop;
-    JSBool ok;
-    uintN oldAttrs, report;
-    JSBool isFunction;
-    jsval value;
-    const char *type, *name;
-
-    if (!OBJ_LOOKUP_PROPERTY(cx, obj, id, &obj2, &prop))
-        return JS_FALSE;
-    *foundp = (prop != NULL);
-    if (!prop)
-        return JS_TRUE;
-    ok = OBJ_GET_ATTRIBUTES(cx, obj2, id, prop, &oldAttrs);
-    OBJ_DROP_PROPERTY(cx, obj2, prop);
-    if (!ok)
-        return JS_FALSE;
-
-    /* If either property is readonly, we have an error. */
-    report = ((oldAttrs | attrs) & JSPROP_READONLY)
-             ? JSREPORT_ERROR
-             : JSREPORT_WARNING | JSREPORT_STRICT;
-
-    if (report != JSREPORT_ERROR) {
-        /*
-         * Allow redeclaration of variables and functions, but insist that the
-         * new value is not a getter if the old value was, ditto for setters --
-         * unless prop is impermanent (in which case anyone could delete it and
-         * redefine it, willy-nilly).
-         */
-        if (!(attrs & (JSPROP_GETTER | JSPROP_SETTER)))
-            return JS_TRUE;
-        if ((~(oldAttrs ^ attrs) & (JSPROP_GETTER | JSPROP_SETTER)) == 0)
-            return JS_TRUE;
-        if (!(oldAttrs & JSPROP_PERMANENT))
-            return JS_TRUE;
-        report = JSREPORT_ERROR;
-    }
-
-    isFunction = (oldAttrs & (JSPROP_GETTER | JSPROP_SETTER)) != 0;
-    if (!isFunction) {
-        if (!OBJ_GET_PROPERTY(cx, obj, id, &value))
-            return JS_FALSE;
-        isFunction = JSVAL_IS_FUNCTION(cx, value);
-    }
-    type = (oldAttrs & attrs & JSPROP_GETTER)
-           ? js_getter_str
-           : (oldAttrs & attrs & JSPROP_SETTER)
-           ? js_setter_str
-           : (oldAttrs & JSPROP_READONLY)
-           ? js_const_str
-           : isFunction
-           ? js_function_str
-           : js_var_str;
-    name = js_AtomToPrintableString(cx, (JSAtom *)id);
-    if (!name)
-        return JS_FALSE;
-    return JS_ReportErrorFlagsAndNumber(cx, report,
-                                        js_GetErrorMessage, NULL,
-                                        JSMSG_REDECLARED_VAR,
-                                        type, name);
-}
-
-#ifndef MAX_INTERP_LEVEL
-#if defined(XP_OS2)
-#define MAX_INTERP_LEVEL 250
-#elif defined _MSC_VER && _MSC_VER <= 800
-#define MAX_INTERP_LEVEL 30
-#else
-#define MAX_INTERP_LEVEL 1000
-#endif
-#endif
-
-#define MAX_INLINE_CALL_COUNT 1000
-
-JSBool
-js_Interpret(JSContext *cx, jsval *result)
-{
-    JSRuntime *rt;
-    JSStackFrame *fp;
-    JSScript *script;
-    uintN inlineCallCount;
-    JSObject *obj, *obj2, *proto, *parent;
-    JSVersion currentVersion, originalVersion;
-    JSBranchCallback onbranch;
-    JSBool ok, cond;
-    JSTrapHandler interruptHandler;
-    jsint depth, len;
-    jsval *sp, *newsp;
-    void *mark;
-    jsbytecode *pc, *pc2, *endpc;
-    JSOp op, op2;
-    const JSCodeSpec *cs;
-    JSAtom *atom;
-    uintN argc, slot, attrs;
-    jsval *vp, lval, rval, ltmp, rtmp;
-    jsid id;
-    JSObject *withobj, *origobj, *propobj;
-    jsval iter_state;
-    JSProperty *prop;
-    JSScopeProperty *sprop;
-    JSString *str, *str2;
-    jsint i, j;
-    jsdouble d, d2;
-    JSClass *clasp, *funclasp;
-    JSFunction *fun;
-    JSType type;
-#ifdef DEBUG
-    FILE *tracefp;
-#endif
-#if JS_HAS_EXPORT_IMPORT
-    JSIdArray *ida;
-#endif
-#if JS_HAS_SWITCH_STATEMENT
-    jsint low, high, off, npairs;
-    JSBool match;
-#endif
-#if JS_HAS_GETTER_SETTER
-    JSPropertyOp getter, setter;
-#endif
-    int stackDummy;
-
-    *result = JSVAL_VOID;
-    rt = cx->runtime;
-
-    /* Set registerized frame pointer and derived script pointer. */
-    fp = cx->fp;
-    script = fp->script;
-
-    /* Count of JS function calls that nest in this C js_Interpret frame. */
-    inlineCallCount = 0;
-
-    /*
-     * Optimized Get and SetVersion for proper script language versioning.
-     *
-     * If any native method or JSClass/JSObjectOps hook calls JS_SetVersion
-     * and changes cx->version, the effect will "stick" and we will stop
-     * maintaining currentVersion.  This is relied upon by testsuites, for
-     * the most part -- web browsers select version before compiling and not
-     * at run-time.
-     */
-    currentVersion = script->version;
-    originalVersion = cx->version;
-    if (currentVersion != originalVersion)
-        JS_SetVersion(cx, currentVersion);
-
-    /*
-     * Prepare to call a user-supplied branch handler, and abort the script
-     * if it returns false.
-     */
-    onbranch = cx->branchCallback;
-    ok = JS_TRUE;
-#define CHECK_BRANCH(len)                                                     \
-    JS_BEGIN_MACRO                                                            \
-        if (len <= 0 && onbranch) {                                           \
-            SAVE_SP(fp);                                                      \
-            if (!(ok = (*onbranch)(cx, script)))                              \
-                goto out;                                                     \
-        }                                                                     \
-    JS_END_MACRO
-
-    /*
-     * Load the debugger's interrupt hook here and after calling out to native
-     * functions (but not to getters, setters, or other native hooks), so we do
-     * not have to reload it each time through the interpreter loop -- we hope
-     * the compiler can keep it in a register.
-     * XXX if it spills, we still lose
-     */
-#define LOAD_INTERRUPT_HANDLER(rt)  (interruptHandler = (rt)->interruptHandler)
-
-    LOAD_INTERRUPT_HANDLER(rt);
-
-    pc = script->code;
-    endpc = pc + script->length;
-    depth = (jsint) script->depth;
-    len = -1;
-
-    /* Check for too much js_Interpret nesting, or too deep a C stack. */
-    if (++cx->interpLevel == MAX_INTERP_LEVEL ||
-        !JS_CHECK_STACK_SIZE(cx, stackDummy)) {
-        JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL, JSMSG_OVER_RECURSED);
-        ok = JS_FALSE;
-        goto out;
-    }
-
-    /*
-     * Allocate operand and pc stack slots for the script's worst-case depth.
-     */
-    newsp = js_AllocRawStack(cx, (uintN)(2 * depth), &mark);
-    if (!newsp) {
-        ok = JS_FALSE;
-        goto out;
-    }
-    sp = newsp + depth;
-    fp->spbase = sp;
-    SAVE_SP(fp);
-
-    while (pc < endpc) {
-        fp->pc = pc;
-        op = (JSOp) *pc;
-      do_op:
-        cs = &js_CodeSpec[op];
-        len = cs->length;
-
-#ifdef DEBUG
-        tracefp = (FILE *) cx->tracefp;
-        if (tracefp) {
-            intN nuses, n;
-
-            fprintf(tracefp, "%4u: ", js_PCToLineNumber(cx, script, pc));
-            js_Disassemble1(cx, script, pc,
-                            PTRDIFF(pc, script->code, jsbytecode), JS_FALSE,
-                            tracefp);
-            nuses = cs->nuses;
-            if (nuses) {
-                SAVE_SP(fp);
-                for (n = -nuses; n < 0; n++) {
-                    str = js_DecompileValueGenerator(cx, n, sp[n], NULL);
-                    if (str != NULL) {
-                        fprintf(tracefp, "%s %s",
-                                (n == -nuses) ? "  inputs:" : ",",
-                                JS_GetStringBytes(str));
-                    }
-                }
-                fprintf(tracefp, " @ %d\n", sp - fp->spbase);
-            }
-        }
-#endif
-
-        if (interruptHandler) {
-            SAVE_SP(fp);
-            switch (interruptHandler(cx, script, pc, &rval,
-                                     rt->interruptHandlerData)) {
-              case JSTRAP_ERROR:
-                ok = JS_FALSE;
-                goto out;
-              case JSTRAP_CONTINUE:
-                break;
-              case JSTRAP_RETURN:
-                fp->rval = rval;
-                goto out;
-#if JS_HAS_EXCEPTIONS
-              case JSTRAP_THROW:
-                cx->throwing = JS_TRUE;
-                cx->exception = rval;
-                ok = JS_FALSE;
-                goto out;
-#endif /* JS_HAS_EXCEPTIONS */
-              default:;
-            }
-            LOAD_INTERRUPT_HANDLER(rt);
-        }
-
-        switch (op) {
-          case JSOP_NOP:
-            break;
-
-          case JSOP_GROUP:
-            obj = NULL;
-            break;
-
-          case JSOP_PUSH:
-            PUSH_OPND(JSVAL_VOID);
-            break;
-
-          case JSOP_POP:
-            sp--;
-            break;
-
-          case JSOP_POP2:
-            sp -= 2;
-            break;
-
-          case JSOP_SWAP:
-            /*
-             * N.B. JSOP_SWAP doesn't swap the corresponding generating pcs
-             * for the operands it swaps.
-             */
-            ltmp = sp[-1];
-            sp[-1] = sp[-2];
-            sp[-2] = ltmp;
-            break;
-
-          case JSOP_POPV:
-            *result = POP_OPND();
-            break;
-
-          case JSOP_ENTERWITH:
-            rval = FETCH_OPND(-1);
-            VALUE_TO_OBJECT(cx, rval, obj);
-            withobj = js_NewObject(cx, &js_WithClass, obj, fp->scopeChain);
-            if (!withobj)
-                goto out;
-            fp->scopeChain = withobj;
-            STORE_OPND(-1, OBJECT_TO_JSVAL(withobj));
-            break;
-
-          case JSOP_LEAVEWITH:
-            rval = POP_OPND();
-            JS_ASSERT(JSVAL_IS_OBJECT(rval));
-            withobj = JSVAL_TO_OBJECT(rval);
-            JS_ASSERT(OBJ_GET_CLASS(cx, withobj) == &js_WithClass);
-
-            rval = OBJ_GET_SLOT(cx, withobj, JSSLOT_PARENT);
-            JS_ASSERT(JSVAL_IS_OBJECT(rval));
-            fp->scopeChain = JSVAL_TO_OBJECT(rval);
-            break;
-
-          case JSOP_SETRVAL:
-            fp->rval = POP_OPND();
-            break;
-
-          case JSOP_RETURN:
-            CHECK_BRANCH(-1);
-            fp->rval = POP_OPND();
-            /* FALL THROUGH */
-
-          case JSOP_RETRVAL:    /* fp->rval already set */
-            if (inlineCallCount)
-          inline_return:
-            {
-                JSInlineFrame *ifp = (JSInlineFrame *) fp;
-                void *hookData = ifp->hookData;
-
-                if (hookData) {
-                    JSInterpreterHook hook = cx->runtime->callHook;
-                    if (hook) {
-                        hook(cx, fp, JS_FALSE, &ok, hookData);
-                        LOAD_INTERRUPT_HANDLER(rt);
-                    }
-                }
-#if JS_HAS_ARGS_OBJECT
-                if (fp->argsobj)
-                    ok &= js_PutArgsObject(cx, fp);
-#endif
-
-                /* Restore context version only if callee hasn't set version. */
-                if (cx->version == currentVersion) {
-                    currentVersion = ifp->callerVersion;
-                    if (currentVersion != cx->version)
-                        JS_SetVersion(cx, currentVersion);
-                }
-
-                /* Store the return value in the caller's operand frame. */
-                vp = fp->argv - 2;
-                *vp = fp->rval;
-
-                /* Restore cx->fp and release the inline frame's space. */
-                cx->fp = fp = fp->down;
-                JS_ARENA_RELEASE(&cx->stackPool, ifp->mark);
-
-                /* Restore sp to point just above the return value. */
-                fp->sp = vp + 1;
-                RESTORE_SP(fp);
-
-                /* Restore the calling script's interpreter registers. */
-                script = fp->script;
-                depth = (jsint) script->depth;
-                pc = fp->pc;
-                endpc = script->code + script->length;
-
-                /* Store the generating pc for the return value. */
-                vp[-depth] = (jsval)pc;
-
-                /* Set remaining variables for 'goto advance_pc'. */
-                op = (JSOp) *pc;
-                cs = &js_CodeSpec[op];
-                len = cs->length;
-
-                /* Resume execution in the calling frame. */
-                inlineCallCount--;
-                if (ok)
-                    goto advance_pc;
-            }
-            goto out;
-
-#if JS_HAS_SWITCH_STATEMENT
-          case JSOP_DEFAULT:
-            (void) POP();
-            /* FALL THROUGH */
-#endif
-          case JSOP_GOTO:
-            len = GET_JUMP_OFFSET(pc);
-            CHECK_BRANCH(len);
-            break;
-
-          case JSOP_IFEQ:
-            POP_BOOLEAN(cx, rval, cond);
-            if (cond == JS_FALSE) {
-                len = GET_JUMP_OFFSET(pc);
-                CHECK_BRANCH(len);
-            }
-            break;
-
-          case JSOP_IFNE:
-            POP_BOOLEAN(cx, rval, cond);
-            if (cond != JS_FALSE) {
-                len = GET_JUMP_OFFSET(pc);
-                CHECK_BRANCH(len);
-            }
-            break;
-
-          case JSOP_OR:
-            POP_BOOLEAN(cx, rval, cond);
-            if (cond == JS_TRUE) {
-                len = GET_JUMP_OFFSET(pc);
-                PUSH_OPND(rval);
-            }
-            break;
-
-          case JSOP_AND:
-            POP_BOOLEAN(cx, rval, cond);
-            if (cond == JS_FALSE) {
-                len = GET_JUMP_OFFSET(pc);
-                PUSH_OPND(rval);
-            }
-            break;
-
-
-#if JS_HAS_SWITCH_STATEMENT
-          case JSOP_DEFAULTX:
-            (void) POP();
-            /* FALL THROUGH */
-#endif
-          case JSOP_GOTOX:
-            len = GET_JUMPX_OFFSET(pc);
-            CHECK_BRANCH(len);
-            break;
-
-          case JSOP_IFEQX:
-            POP_BOOLEAN(cx, rval, cond);
-            if (cond == JS_FALSE) {
-                len = GET_JUMPX_OFFSET(pc);
-                CHECK_BRANCH(len);
-            }
-            break;
-
-          case JSOP_IFNEX:
-            POP_BOOLEAN(cx, rval, cond);
-            if (cond != JS_FALSE) {
-                len = GET_JUMPX_OFFSET(pc);
-                CHECK_BRANCH(len);
-            }
-            break;
-
-          case JSOP_ORX:
-            POP_BOOLEAN(cx, rval, cond);
-            if (cond == JS_TRUE) {
-                len = GET_JUMPX_OFFSET(pc);
-                PUSH_OPND(rval);
-            }
-            break;
-
-          case JSOP_ANDX:
-            POP_BOOLEAN(cx, rval, cond);
-            if (cond == JS_FALSE) {
-                len = GET_JUMPX_OFFSET(pc);
-                PUSH_OPND(rval);
-            }
-            break;
-
-          case JSOP_TOOBJECT:
-            SAVE_SP(fp);
-            ok = js_ValueToObject(cx, FETCH_OPND(-1), &obj);
-            if (!ok)
-                goto out;
-            STORE_OPND(-1, OBJECT_TO_JSVAL(obj));
-            break;
-
-#define FETCH_ELEMENT_ID(n, id)                                               \
-    JS_BEGIN_MACRO                                                            \
-        /* If the index is not a jsint, atomize it. */                        \
-        id = (jsid) FETCH_OPND(n);                                            \
-        if (JSVAL_IS_INT(id)) {                                               \
-            atom = NULL;                                                      \
-        } else {                                                              \
-            SAVE_SP(fp);                                                      \
-            atom = js_ValueToStringAtom(cx, (jsval)id);                       \
-            if (!atom) {                                                      \
-                ok = JS_FALSE;                                                \
-                goto out;                                                     \
-            }                                                                 \
-            id = (jsid)atom;                                                  \
-        }                                                                     \
-    JS_END_MACRO
-
-#define POP_ELEMENT_ID(id)                                                    \
-    JS_BEGIN_MACRO                                                            \
-        FETCH_ELEMENT_ID(-1, id);                                             \
-        sp--;                                                                 \
-    JS_END_MACRO
-
-#if JS_HAS_IN_OPERATOR
-          case JSOP_IN:
-            rval = FETCH_OPND(-1);
-            if (JSVAL_IS_PRIMITIVE(rval)) {
-                str = js_DecompileValueGenerator(cx, -1, rval, NULL);
-                if (str) {
-                    JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
-                                         JSMSG_IN_NOT_OBJECT,
-                                         JS_GetStringBytes(str));
-                }
-                ok = JS_FALSE;
-                goto out;
-            }
-            sp--;
-            obj = JSVAL_TO_OBJECT(rval);
-            FETCH_ELEMENT_ID(-1, id);
-            ok = OBJ_LOOKUP_PROPERTY(cx, obj, id, &obj2, &prop);
-            if (!ok)
-                goto out;
-            STORE_OPND(-1, BOOLEAN_TO_JSVAL(prop != NULL));
-            if (prop)
-                OBJ_DROP_PROPERTY(cx, obj2, prop);
-            break;
-#endif /* JS_HAS_IN_OPERATOR */
-
-          case JSOP_FORPROP:
-            /*
-             * Handle JSOP_FORPROP first, so the cost of the goto do_forinloop
-             * is not paid for the more common cases.
-             */
-            lval = FETCH_OPND(-1);
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-            i = -2;
-            goto do_forinloop;
-
-          case JSOP_FORNAME:
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-
-            /*
-             * ECMA 12.6.3 says to eval the LHS after looking for properties
-             * to enumerate, and bail without LHS eval if there are no props.
-             * We do Find here to share the most code at label do_forinloop.
-             * If looking for enumerable properties could have side effects,
-             * then we'd have to move this into the common code and condition
-             * it on op == JSOP_FORNAME.
-             */
-            SAVE_SP(fp);
-            ok = js_FindProperty(cx, id, &obj, &obj2, &prop);
-            if (!ok)
-                goto out;
-            if (prop)
-                OBJ_DROP_PROPERTY(cx, obj2, prop);
-            lval = OBJECT_TO_JSVAL(obj);
-            /* FALL THROUGH */
-
-          case JSOP_FORARG:
-          case JSOP_FORVAR:
-            /*
-             * JSOP_FORARG and JSOP_FORVAR don't require any lval computation
-             * here, because they address slots on the stack (in fp->args and
-             * fp->vars, respectively).
-             */
-            /* FALL THROUGH */
-
-          case JSOP_FORELEM:
-            /*
-             * JSOP_FORELEM simply initializes or updates the iteration state
-             * and leaves the index expression evaluation and assignment to the
-             * enumerator until after the next property has been acquired, via
-             * a JSOP_ENUMELEM bytecode.
-             */
-            i = -1;
-
-          do_forinloop:
-            /*
-             * ECMA-compatible for/in evals the object just once, before loop.
-             * Bad old bytecodes (since removed) did it on every iteration.
-             */
-            obj = JSVAL_TO_OBJECT(sp[i]);
-
-            /* If the thing to the right of 'in' has no properties, break. */
-            if (!obj) {
-                rval = JSVAL_FALSE;
-                goto end_forinloop;
-            }
-
-            /*
-             * Save the thing to the right of 'in' as origobj.  Later on, we
-             * use this variable to suppress enumeration of shadowed prototype
-             * properties.
-             */
-            origobj = obj;
-
-            /*
-             * Reach under the top of stack to find our property iterator, a
-             * JSObject that contains the iteration state.  (An object is used
-             * rather than a native struct so that the iteration state is
-             * cleaned up via GC if the for-in loop terminates abruptly.)
-             */
-            vp = &sp[i - 1];
-            rval = *vp;
-
-            /* Is this the first iteration ? */
-            if (JSVAL_IS_VOID(rval)) {
-                /* Yes, create a new JSObject to hold the iterator state */
-                propobj = js_NewObject(cx, &prop_iterator_class, NULL, obj);
-                if (!propobj) {
-                    ok = JS_FALSE;
-                    goto out;
-                }
-                propobj->slots[JSSLOT_ITER_STATE] = JSVAL_NULL;
-
-                /*
-                 * Root the parent slot so we can get it even in our finalizer
-                 * (otherwise, it would live as long as we do, but it might be
-                 * finalized first).
-                 */
-                ok = js_AddRoot(cx, &propobj->slots[JSSLOT_PARENT],
-                                "propobj->parent");
-                if (!ok)
-                    goto out;
-
-                /*
-                 * Rewrite the iterator so we know to do the next case.
-                 * Do this before calling the enumerator, which could
-                 * displace cx->newborn and cause GC.
-                 */
-                *vp = OBJECT_TO_JSVAL(propobj);
-
-                ok = OBJ_ENUMERATE(cx, obj, JSENUMERATE_INIT, &iter_state, 0);
-
-                /*
-                 * Stash private iteration state into property iterator object.
-                 * We do this before checking 'ok' to ensure that propobj is
-                 * in a valid state even if OBJ_ENUMERATE returned JS_FALSE.
-                 * NB: This code knows that the first slots are pre-allocated.
-                 */
-#if JS_INITIAL_NSLOTS < 5
-#error JS_INITIAL_NSLOTS must be greater than or equal to 5.
-#endif
-                propobj->slots[JSSLOT_ITER_STATE] = iter_state;
-                if (!ok)
-                    goto out;
-            } else {
-                /* This is not the first iteration. Recover iterator state. */
-                propobj = JSVAL_TO_OBJECT(rval);
-                obj = JSVAL_TO_OBJECT(propobj->slots[JSSLOT_PARENT]);
-                iter_state = propobj->slots[JSSLOT_ITER_STATE];
-            }
-
-          enum_next_property:
-            /* Get the next jsid to be enumerated and store it in rval. */
-            OBJ_ENUMERATE(cx, obj, JSENUMERATE_NEXT, &iter_state, &rval);
-            propobj->slots[JSSLOT_ITER_STATE] = iter_state;
-
-            /* No more jsids to iterate in obj? */
-            if (iter_state == JSVAL_NULL) {
-                /* Enumerate the properties on obj's prototype chain. */
-                obj = OBJ_GET_PROTO(cx, obj);
-                if (!obj) {
-                    /* End of property list -- terminate loop. */
-                    rval = JSVAL_FALSE;
-                    goto end_forinloop;
-                }
-
-                ok = OBJ_ENUMERATE(cx, obj, JSENUMERATE_INIT, &iter_state, 0);
-
-                /*
-                 * Stash private iteration state into property iterator object.
-                 * We do this before checking 'ok' to ensure that propobj is
-                 * in a valid state even if OBJ_ENUMERATE returned JS_FALSE.
-                 * NB: This code knows that the first slots are pre-allocated.
-                 */
-                propobj->slots[JSSLOT_ITER_STATE] = iter_state;
-                if (!ok)
-                    goto out;
-
-                /*
-                 * Update the iterator JSObject's parent link to refer to the
-                 * current object. This is used in the iterator JSObject's
-                 * finalizer.
-                 */
-                propobj->slots[JSSLOT_PARENT] = OBJECT_TO_JSVAL(obj);
-                goto enum_next_property;
-            }
-
-            /* Skip properties not owned by obj, and leave next id in rval. */
-            ok = OBJ_LOOKUP_PROPERTY(cx, origobj, rval, &obj2, &prop);
-            if (!ok)
-                goto out;
-            if (prop) {
-                OBJ_DROP_PROPERTY(cx, obj2, prop);
-
-                /* Yes, don't enumerate again.  Go to the next property. */
-                if (obj2 != obj)
-                    goto enum_next_property;
-            }
-
-            /* Make sure rval is a string for uniformity and compatibility. */
-            if (!JSVAL_IS_INT(rval)) {
-                rval = ATOM_KEY((JSAtom *)rval);
-            } else if (cx->version != JSVERSION_1_2) {
-                str = js_NumberToString(cx, (jsdouble) JSVAL_TO_INT(rval));
-                if (!str) {
-                    ok = JS_FALSE;
-                    goto out;
-                }
-
-                rval = STRING_TO_JSVAL(str);
-            }
-
-            switch (op) {
-              case JSOP_FORARG:
-                slot = GET_ARGNO(pc);
-                JS_ASSERT(slot < fp->fun->nargs);
-                fp->argv[slot] = rval;
-                break;
-
-              case JSOP_FORVAR:
-                slot = GET_VARNO(pc);
-                JS_ASSERT(slot < fp->fun->nvars);
-                fp->vars[slot] = rval;
-                break;
-
-              case JSOP_FORELEM:
-                /* FORELEM is not a SET operation, it's more like BINDNAME. */
-                PUSH_OPND(rval);
-                break;
-
-              default:
-                /* Convert lval to a non-null object containing id. */
-                VALUE_TO_OBJECT(cx, lval, obj);
-
-                /* Set the variable obj[id] to refer to rval. */
-                fp->flags |= JSFRAME_ASSIGNING;
-                ok = OBJ_SET_PROPERTY(cx, obj, id, &rval);
-                fp->flags &= ~JSFRAME_ASSIGNING;
-                if (!ok)
-                    goto out;
-                break;
-            }
-
-            /* Push true to keep looping through properties. */
-            rval = JSVAL_TRUE;
-
-          end_forinloop:
-            sp += i + 1;
-            PUSH_OPND(rval);
-            break;
-
-          case JSOP_DUP:
-            JS_ASSERT(sp > fp->spbase);
-            rval = sp[-1];
-            PUSH_OPND(rval);
-            break;
-
-          case JSOP_DUP2:
-            JS_ASSERT(sp - 1 > fp->spbase);
-            lval = FETCH_OPND(-2);
-            rval = FETCH_OPND(-1);
-            PUSH_OPND(lval);
-            PUSH_OPND(rval);
-            break;
-
-#define PROPERTY_OP(n, call)                                                  \
-    JS_BEGIN_MACRO                                                            \
-        /* Pop the left part and resolve it to a non-null object. */          \
-        lval = FETCH_OPND(n);                                                 \
-        VALUE_TO_OBJECT(cx, lval, obj);                                       \
-                                                                              \
-        /* Get or set the property, set ok false if error, true if success. */\
-        SAVE_SP(fp);                                                          \
-        call;                                                                 \
-        if (!ok)                                                              \
-            goto out;                                                         \
-    JS_END_MACRO
-
-#define ELEMENT_OP(n, call)                                                   \
-    JS_BEGIN_MACRO                                                            \
-        FETCH_ELEMENT_ID(n, id);                                              \
-        PROPERTY_OP(n-1, call);                                               \
-    JS_END_MACRO
-
-/*
- * Direct callers, i.e. those who do not wrap CACHED_GET and CACHED_SET calls
- * in PROPERTY_OP or ELEMENT_OP macro calls must SAVE_SP(fp); beforehand, just
- * in case a getter or setter function is invoked.
- */
-#define CACHED_GET(call)                                                      \
-    JS_BEGIN_MACRO                                                            \
-        if (!OBJ_IS_NATIVE(obj)) {                                            \
-            ok = call;                                                        \
-        } else {                                                              \
-            JS_LOCK_OBJ(cx, obj);                                             \
-            PROPERTY_CACHE_TEST(&rt->propertyCache, obj, id, sprop);          \
-            if (sprop) {                                                      \
-                JSScope *scope_ = OBJ_SCOPE(obj);                             \
-                slot = (uintN)sprop->slot;                                    \
-                rval = (slot != SPROP_INVALID_SLOT)                           \
-                       ? LOCKED_OBJ_GET_SLOT(obj, slot)                       \
-                       : JSVAL_VOID;                                          \
-                JS_UNLOCK_SCOPE(cx, scope_);                                  \
-                ok = SPROP_GET(cx, sprop, obj, obj, &rval);                   \
-                JS_LOCK_SCOPE(cx, scope_);                                    \
-                if (ok && SPROP_HAS_VALID_SLOT(sprop, scope_))                \
-                    LOCKED_OBJ_SET_SLOT(obj, slot, rval);                     \
-                JS_UNLOCK_SCOPE(cx, scope_);                                  \
-            } else {                                                          \
-                JS_UNLOCK_OBJ(cx, obj);                                       \
-                ok = call;                                                    \
-                /* No fill here: js_GetProperty fills the cache. */           \
-            }                                                                 \
-        }                                                                     \
-    JS_END_MACRO
-
-#define CACHED_SET(call)                                                      \
-    JS_BEGIN_MACRO                                                            \
-        if (!OBJ_IS_NATIVE(obj)) {                                            \
-            ok = call;                                                        \
-        } else {                                                              \
-            JSScope *scope_;                                                  \
-            JS_LOCK_OBJ(cx, obj);                                             \
-            PROPERTY_CACHE_TEST(&rt->propertyCache, obj, id, sprop);          \
-            if (sprop &&                                                      \
-                !(sprop->attrs & JSPROP_READONLY) &&                          \
-                (scope_ = OBJ_SCOPE(obj), !SCOPE_IS_SEALED(scope_))) {        \
-                JS_UNLOCK_SCOPE(cx, scope_);                                  \
-                ok = SPROP_SET(cx, sprop, obj, obj, &rval);                   \
-                JS_LOCK_SCOPE(cx, scope_);                                    \
-                if (ok && SPROP_HAS_VALID_SLOT(sprop, scope_)) {              \
-                    LOCKED_OBJ_SET_SLOT(obj, sprop->slot, rval);              \
-                    GC_POKE(cx, JSVAL_NULL);  /* XXX second arg ignored */    \
-                }                                                             \
-                JS_UNLOCK_SCOPE(cx, scope_);                                  \
-            } else {                                                          \
-                JS_UNLOCK_OBJ(cx, obj);                                       \
-                ok = call;                                                    \
-                /* No fill here: js_SetProperty writes through the cache. */  \
-            }                                                                 \
-        }                                                                     \
-    JS_END_MACRO
-
-          case JSOP_SETCONST:
-            obj = fp->varobj;
-            atom = GET_ATOM(cx, script, pc);
-            rval = FETCH_OPND(-1);
-            ok = OBJ_DEFINE_PROPERTY(cx, obj, (jsid)atom, rval, NULL, NULL,
-                                     JSPROP_ENUMERATE | JSPROP_PERMANENT |
-                                     JSPROP_READONLY,
-                                     NULL);
-            if (!ok)
-                goto out;
-            STORE_OPND(-1, rval);
-            break;
-
-          case JSOP_BINDNAME:
-            atom = GET_ATOM(cx, script, pc);
-            SAVE_SP(fp);
-            obj = js_FindIdentifierBase(cx, (jsid)atom);
-            if (!obj) {
-                ok = JS_FALSE;
-                goto out;
-            }
-            PUSH_OPND(OBJECT_TO_JSVAL(obj));
-            break;
-
-          case JSOP_SETNAME:
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-            rval = FETCH_OPND(-1);
-            lval = FETCH_OPND(-2);
-            JS_ASSERT(!JSVAL_IS_PRIMITIVE(lval));
-            obj  = JSVAL_TO_OBJECT(lval);
-            SAVE_SP(fp);
-            CACHED_SET(OBJ_SET_PROPERTY(cx, obj, id, &rval));
-            if (!ok)
-                goto out;
-            sp--;
-            STORE_OPND(-1, rval);
-            break;
-
-#define INTEGER_OP(OP, EXTRA_CODE)                                            \
-    JS_BEGIN_MACRO                                                            \
-        FETCH_INT(cx, -1, j);                                                 \
-        FETCH_INT(cx, -2, i);                                                 \
-        if (!ok)                                                              \
-            goto out;                                                         \
-        EXTRA_CODE                                                            \
-        d = i OP j;                                                           \
-        sp--;                                                                 \
-        STORE_NUMBER(cx, -1, d);                                              \
-    JS_END_MACRO
-
-#define BITWISE_OP(OP)          INTEGER_OP(OP, (void) 0;)
-#define SIGNED_SHIFT_OP(OP)     INTEGER_OP(OP, j &= 31;)
-
-          case JSOP_BITOR:
-            BITWISE_OP(|);
-            break;
-
-          case JSOP_BITXOR:
-            BITWISE_OP(^);
-            break;
-
-          case JSOP_BITAND:
-            BITWISE_OP(&);
-            break;
-
-#if defined(XP_WIN)
-#define COMPARE_DOUBLES(LVAL, OP, RVAL, IFNAN)                                \
-    ((JSDOUBLE_IS_NaN(LVAL) || JSDOUBLE_IS_NaN(RVAL))                         \
-     ? (IFNAN)                                                                \
-     : (LVAL) OP (RVAL))
-#else
-#define COMPARE_DOUBLES(LVAL, OP, RVAL, IFNAN) ((LVAL) OP (RVAL))
-#endif
-
-#define RELATIONAL_OP(OP)                                                     \
-    JS_BEGIN_MACRO                                                            \
-        rval = FETCH_OPND(-1);                                                \
-        lval = FETCH_OPND(-2);                                                \
-        /* Optimize for two int-tagged operands (typical loop control). */    \
-        if ((lval & rval) & JSVAL_INT) {                                      \
-            ltmp = lval ^ JSVAL_VOID;                                         \
-            rtmp = rval ^ JSVAL_VOID;                                         \
-            if (ltmp && rtmp) {                                               \
-                cond = JSVAL_TO_INT(lval) OP JSVAL_TO_INT(rval);              \
-            } else {                                                          \
-                d  = ltmp ? JSVAL_TO_INT(lval) : *rt->jsNaN;                  \
-                d2 = rtmp ? JSVAL_TO_INT(rval) : *rt->jsNaN;                  \
-                cond = COMPARE_DOUBLES(d, OP, d2, JS_FALSE);                  \
-            }                                                                 \
-        } else {                                                              \
-            VALUE_TO_PRIMITIVE(cx, lval, JSTYPE_NUMBER, &lval);               \
-            VALUE_TO_PRIMITIVE(cx, rval, JSTYPE_NUMBER, &rval);               \
-            if (JSVAL_IS_STRING(lval) && JSVAL_IS_STRING(rval)) {             \
-                str  = JSVAL_TO_STRING(lval);                                 \
-                str2 = JSVAL_TO_STRING(rval);                                 \
-                cond = js_CompareStrings(str, str2) OP 0;                     \
-            } else {                                                          \
-                VALUE_TO_NUMBER(cx, lval, d);                                 \
-                VALUE_TO_NUMBER(cx, rval, d2);                                \
-                cond = COMPARE_DOUBLES(d, OP, d2, JS_FALSE);                  \
-            }                                                                 \
-        }                                                                     \
-        sp--;                                                                 \
-        STORE_OPND(-1, BOOLEAN_TO_JSVAL(cond));                               \
-    JS_END_MACRO
-
-#define EQUALITY_OP(OP, IFNAN)                                                \
-    JS_BEGIN_MACRO                                                            \
-        rval = FETCH_OPND(-1);                                                \
-        lval = FETCH_OPND(-2);                                                \
-        ltmp = JSVAL_TAG(lval);                                               \
-        rtmp = JSVAL_TAG(rval);                                               \
-        if (ltmp == rtmp) {                                                   \
-            if (ltmp == JSVAL_STRING) {                                       \
-                str  = JSVAL_TO_STRING(lval);                                 \
-                str2 = JSVAL_TO_STRING(rval);                                 \
-                cond = js_CompareStrings(str, str2) OP 0;                     \
-            } else if (ltmp == JSVAL_DOUBLE) {                                \
-                d  = *JSVAL_TO_DOUBLE(lval);                                  \
-                d2 = *JSVAL_TO_DOUBLE(rval);                                  \
-                cond = COMPARE_DOUBLES(d, OP, d2, IFNAN);                     \
-            } else {                                                          \
-                /* Handle all undefined (=>NaN) and int combinations. */      \
-                cond = lval OP rval;                                          \
-            }                                                                 \
-        } else {                                                              \
-            if (JSVAL_IS_NULL(lval) || JSVAL_IS_VOID(lval)) {                 \
-                cond = (JSVAL_IS_NULL(rval) || JSVAL_IS_VOID(rval)) OP 1;     \
-            } else if (JSVAL_IS_NULL(rval) || JSVAL_IS_VOID(rval)) {          \
-                cond = 1 OP 0;                                                \
-            } else {                                                          \
-                if (ltmp == JSVAL_OBJECT) {                                   \
-                    VALUE_TO_PRIMITIVE(cx, lval, JSTYPE_VOID, &lval);         \
-                    ltmp = JSVAL_TAG(lval);                                   \
-                } else if (rtmp == JSVAL_OBJECT) {                            \
-                    VALUE_TO_PRIMITIVE(cx, rval, JSTYPE_VOID, &rval);         \
-                    rtmp = JSVAL_TAG(rval);                                   \
-                }                                                             \
-                if (ltmp == JSVAL_STRING && rtmp == JSVAL_STRING) {           \
-                    str  = JSVAL_TO_STRING(lval);                             \
-                    str2 = JSVAL_TO_STRING(rval);                             \
-                    cond = js_CompareStrings(str, str2) OP 0;                 \
-                } else {                                                      \
-                    VALUE_TO_NUMBER(cx, lval, d);                             \
-                    VALUE_TO_NUMBER(cx, rval, d2);                            \
-                    cond = COMPARE_DOUBLES(d, OP, d2, IFNAN);                 \
-                }                                                             \
-            }                                                                 \
-        }                                                                     \
-        sp--;                                                                 \
-        STORE_OPND(-1, BOOLEAN_TO_JSVAL(cond));                               \
-    JS_END_MACRO
-
-          case JSOP_EQ:
-            EQUALITY_OP(==, JS_FALSE);
-            break;
-
-          case JSOP_NE:
-            EQUALITY_OP(!=, JS_TRUE);
-            break;
-
-#if !JS_BUG_FALLIBLE_EQOPS
-#define NEW_EQUALITY_OP(OP, IFNAN)                                            \
-    JS_BEGIN_MACRO                                                            \
-        rval = FETCH_OPND(-1);                                                \
-        lval = FETCH_OPND(-2);                                                \
-        ltmp = JSVAL_TAG(lval);                                               \
-        rtmp = JSVAL_TAG(rval);                                               \
-        if (ltmp == rtmp) {                                                   \
-            if (ltmp == JSVAL_STRING) {                                       \
-                str  = JSVAL_TO_STRING(lval);                                 \
-                str2 = JSVAL_TO_STRING(rval);                                 \
-                cond = js_CompareStrings(str, str2) OP 0;                     \
-            } else if (ltmp == JSVAL_DOUBLE) {                                \
-                d  = *JSVAL_TO_DOUBLE(lval);                                  \
-                d2 = *JSVAL_TO_DOUBLE(rval);                                  \
-                cond = COMPARE_DOUBLES(d, OP, d2, IFNAN);                     \
-            } else {                                                          \
-                cond = lval OP rval;                                          \
-            }                                                                 \
-        } else {                                                              \
-            if (ltmp == JSVAL_DOUBLE && JSVAL_IS_INT(rval)) {                 \
-                d  = *JSVAL_TO_DOUBLE(lval);                                  \
-                d2 = JSVAL_TO_INT(rval);                                      \
-                cond = COMPARE_DOUBLES(d, OP, d2, IFNAN);                     \
-            } else if (JSVAL_IS_INT(lval) && rtmp == JSVAL_DOUBLE) {          \
-                d  = JSVAL_TO_INT(lval);                                      \
-                d2 = *JSVAL_TO_DOUBLE(rval);                                  \
-                cond = COMPARE_DOUBLES(d, OP, d2, IFNAN);                     \
-            } else {                                                          \
-                cond = lval OP rval;                                          \
-            }                                                                 \
-        }                                                                     \
-        sp--;                                                                 \
-        STORE_OPND(-1, BOOLEAN_TO_JSVAL(cond));                               \
-    JS_END_MACRO
-
-          case JSOP_NEW_EQ:
-            NEW_EQUALITY_OP(==, JS_FALSE);
-            break;
-
-          case JSOP_NEW_NE:
-            NEW_EQUALITY_OP(!=, JS_TRUE);
-            break;
-
-#if JS_HAS_SWITCH_STATEMENT
-          case JSOP_CASE:
-            NEW_EQUALITY_OP(==, JS_FALSE);
-            (void) POP();
-            if (cond) {
-                len = GET_JUMP_OFFSET(pc);
-                CHECK_BRANCH(len);
-            } else {
-                PUSH(lval);
-            }
-            break;
-
-          case JSOP_CASEX:
-            NEW_EQUALITY_OP(==, JS_FALSE);
-            (void) POP();
-            if (cond) {
-                len = GET_JUMPX_OFFSET(pc);
-                CHECK_BRANCH(len);
-            } else {
-                PUSH(lval);
-            }
-            break;
-#endif
-
-#endif /* !JS_BUG_FALLIBLE_EQOPS */
-
-          case JSOP_LT:
-            RELATIONAL_OP(<);
-            break;
-
-          case JSOP_LE:
-            RELATIONAL_OP(<=);
-            break;
-
-          case JSOP_GT:
-            RELATIONAL_OP(>);
-            break;
-
-          case JSOP_GE:
-            RELATIONAL_OP(>=);
-            break;
-
-#undef EQUALITY_OP
-#undef RELATIONAL_OP
-
-          case JSOP_LSH:
-            SIGNED_SHIFT_OP(<<);
-            break;
-
-          case JSOP_RSH:
-            SIGNED_SHIFT_OP(>>);
-            break;
-
-          case JSOP_URSH:
-          {
-            uint32 u;
-
-            FETCH_INT(cx, -1, j);
-            FETCH_UINT(cx, -2, u);
-            j &= 31;
-            d = u >> j;
-            sp--;
-            STORE_NUMBER(cx, -1, d);
-            break;
-          }
-
-#undef INTEGER_OP
-#undef BITWISE_OP
-#undef SIGNED_SHIFT_OP
-
-          case JSOP_ADD:
-            rval = FETCH_OPND(-1);
-            lval = FETCH_OPND(-2);
-            VALUE_TO_PRIMITIVE(cx, lval, JSTYPE_VOID, &ltmp);
-            VALUE_TO_PRIMITIVE(cx, rval, JSTYPE_VOID, &rtmp);
-            if ((cond = JSVAL_IS_STRING(ltmp)) || JSVAL_IS_STRING(rtmp)) {
-                if (cond) {
-                    str = JSVAL_TO_STRING(ltmp);
-                    SAVE_SP(fp);
-                    ok = (str2 = js_ValueToString(cx, rtmp)) != NULL;
-                } else {
-                    str2 = JSVAL_TO_STRING(rtmp);
-                    SAVE_SP(fp);
-                    ok = (str = js_ValueToString(cx, ltmp)) != NULL;
-                }
-                if (!ok)
-                    goto out;
-                str = js_ConcatStrings(cx, str, str2);
-                if (!str) {
-                    ok = JS_FALSE;
-                    goto out;
-                }
-                sp--;
-                STORE_OPND(-1, STRING_TO_JSVAL(str));
-            } else {
-                VALUE_TO_NUMBER(cx, lval, d);
-                VALUE_TO_NUMBER(cx, rval, d2);
-                d += d2;
-                sp--;
-                STORE_NUMBER(cx, -1, d);
-            }
-            break;
-
-#define BINARY_OP(OP)                                                         \
-    JS_BEGIN_MACRO                                                            \
-        FETCH_NUMBER(cx, -1, d2);                                             \
-        FETCH_NUMBER(cx, -2, d);                                              \
-        d = d OP d2;                                                          \
-        sp--;                                                                 \
-        STORE_NUMBER(cx, -1, d);                                              \
-    JS_END_MACRO
-
-          case JSOP_SUB:
-            BINARY_OP(-);
-            break;
-
-          case JSOP_MUL:
-            BINARY_OP(*);
-            break;
-
-          case JSOP_DIV:
-            FETCH_NUMBER(cx, -1, d2);
-            FETCH_NUMBER(cx, -2, d);
-            sp--;
-            if (d2 == 0) {
-#if defined(XP_WIN)
-                /* XXX MSVC miscompiles such that (NaN == 0) */
-                if (JSDOUBLE_IS_NaN(d2))
-                    rval = DOUBLE_TO_JSVAL(rt->jsNaN);
-                else
-#endif
-                if (d == 0 || JSDOUBLE_IS_NaN(d))
-                    rval = DOUBLE_TO_JSVAL(rt->jsNaN);
-                else if ((JSDOUBLE_HI32(d) ^ JSDOUBLE_HI32(d2)) >> 31)
-                    rval = DOUBLE_TO_JSVAL(rt->jsNegativeInfinity);
-                else
-                    rval = DOUBLE_TO_JSVAL(rt->jsPositiveInfinity);
-                STORE_OPND(-1, rval);
-            } else {
-                d /= d2;
-                STORE_NUMBER(cx, -1, d);
-            }
-            break;
-
-          case JSOP_MOD:
-            FETCH_NUMBER(cx, -1, d2);
-            FETCH_NUMBER(cx, -2, d);
-            sp--;
-            if (d2 == 0) {
-                STORE_OPND(-1, DOUBLE_TO_JSVAL(rt->jsNaN));
-            } else {
-#if defined(XP_WIN)
-              /* Workaround MS fmod bug where 42 % (1/0) => NaN, not 42. */
-              if (!(JSDOUBLE_IS_FINITE(d) && JSDOUBLE_IS_INFINITE(d2)))
-#endif
-                d = fmod(d, d2);
-                STORE_NUMBER(cx, -1, d);
-            }
-            break;
-
-          case JSOP_NOT:
-            POP_BOOLEAN(cx, rval, cond);
-            PUSH_OPND(BOOLEAN_TO_JSVAL(!cond));
-            break;
-
-          case JSOP_BITNOT:
-            FETCH_INT(cx, -1, i);
-            d = (jsdouble) ~i;
-            STORE_NUMBER(cx, -1, d);
-            break;
-
-          case JSOP_NEG:
-            FETCH_NUMBER(cx, -1, d);
-#ifdef HPUX
-            /*
-             * Negation of a zero doesn't produce a negative
-             * zero on HPUX. Perform the operation by bit
-             * twiddling.
-             */
-            JSDOUBLE_HI32(d) ^= JSDOUBLE_HI32_SIGNBIT;
-#else
-            d = -d;
-#endif
-            STORE_NUMBER(cx, -1, d);
-            break;
-
-          case JSOP_POS:
-            FETCH_NUMBER(cx, -1, d);
-            STORE_NUMBER(cx, -1, d);
-            break;
-
-          case JSOP_NEW:
-            /* Get immediate argc and find the constructor function. */
-            argc = GET_ARGC(pc);
-
-#if JS_HAS_INITIALIZERS
-          do_new:
-#endif
-            vp = sp - (2 + argc);
-            JS_ASSERT(vp >= fp->spbase);
-
-            fun = NULL;
-            obj2 = NULL;
-            lval = *vp;
-            if (!JSVAL_IS_OBJECT(lval) ||
-                (obj2 = JSVAL_TO_OBJECT(lval)) == NULL ||
-                /* XXX clean up to avoid special cases above ObjectOps layer */
-                OBJ_GET_CLASS(cx, obj2) == &js_FunctionClass ||
-                !obj2->map->ops->construct)
-            {
-                SAVE_SP(fp);
-                fun = js_ValueToFunction(cx, vp, JSV2F_CONSTRUCT);
-                if (!fun) {
-                    ok = JS_FALSE;
-                    goto out;
-                }
-            }
-
-            clasp = &js_ObjectClass;
-            if (!obj2) {
-                proto = parent = NULL;
-                fun = NULL;
-            } else {
-                /* Get the constructor prototype object for this function. */
-                ok = OBJ_GET_PROPERTY(cx, obj2,
-                                      (jsid)rt->atomState.classPrototypeAtom,
-                                      &rval);
-                if (!ok)
-                    goto out;
-                proto = JSVAL_IS_OBJECT(rval) ? JSVAL_TO_OBJECT(rval) : NULL;
-                parent = OBJ_GET_PARENT(cx, obj2);
-
-                if (OBJ_GET_CLASS(cx, obj2) == &js_FunctionClass) {
-                    funclasp = ((JSFunction *)JS_GetPrivate(cx, obj2))->clasp;
-                    if (funclasp)
-                        clasp = funclasp;
-                }
-            }
-            obj = js_NewObject(cx, clasp, proto, parent);
-            if (!obj) {
-                ok = JS_FALSE;
-                goto out;
-            }
-
-            /* Now we have an object with a constructor method; call it. */
-            vp[1] = OBJECT_TO_JSVAL(obj);
-            SAVE_SP(fp);
-            ok = js_Invoke(cx, argc, JSINVOKE_CONSTRUCT);
-            RESTORE_SP(fp);
-            LOAD_INTERRUPT_HANDLER(rt);
-            if (!ok) {
-                cx->newborn[GCX_OBJECT] = NULL;
-                goto out;
-            }
-
-            /* Check the return value and update obj from it. */
-            rval = *vp;
-            if (JSVAL_IS_PRIMITIVE(rval)) {
-                if (fun || !JSVERSION_IS_ECMA(cx->version)) {
-                    *vp = OBJECT_TO_JSVAL(obj);
-                    break;
-                }
-                /* native [[Construct]] returning primitive is error */
-                str = js_ValueToString(cx, rval);
-                if (str) {
-                    JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
-                                         JSMSG_BAD_NEW_RESULT,
-                                         JS_GetStringBytes(str));
-                }
-                ok = JS_FALSE;
-                goto out;
-            }
-            obj = JSVAL_TO_OBJECT(rval);
-            JS_RUNTIME_METER(rt, constructs);
-            break;
-
-          case JSOP_DELNAME:
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-
-            SAVE_SP(fp);
-            ok = js_FindProperty(cx, id, &obj, &obj2, &prop);
-            if (!ok)
-                goto out;
-
-            /* ECMA says to return true if name is undefined or inherited. */
-            rval = JSVAL_TRUE;
-            if (prop) {
-                OBJ_DROP_PROPERTY(cx, obj2, prop);
-                ok = OBJ_DELETE_PROPERTY(cx, obj, id, &rval);
-                if (!ok)
-                    goto out;
-            }
-            PUSH_OPND(rval);
-            break;
-
-          case JSOP_DELPROP:
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-            PROPERTY_OP(-1, ok = OBJ_DELETE_PROPERTY(cx, obj, id, &rval));
-            STORE_OPND(-1, rval);
-            break;
-
-          case JSOP_DELELEM:
-            ELEMENT_OP(-1, ok = OBJ_DELETE_PROPERTY(cx, obj, id, &rval));
-            sp--;
-            STORE_OPND(-1, rval);
-            break;
-
-          case JSOP_TYPEOF:
-            rval = POP_OPND();
-            type = JS_TypeOfValue(cx, rval);
-            atom = rt->atomState.typeAtoms[type];
-            str  = ATOM_TO_STRING(atom);
-            PUSH_OPND(STRING_TO_JSVAL(str));
-            break;
-
-          case JSOP_VOID:
-            (void) POP_OPND();
-            PUSH_OPND(JSVAL_VOID);
-            break;
-
-          case JSOP_INCNAME:
-          case JSOP_DECNAME:
-          case JSOP_NAMEINC:
-          case JSOP_NAMEDEC:
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-
-            SAVE_SP(fp);
-            ok = js_FindProperty(cx, id, &obj, &obj2, &prop);
-            if (!ok)
-                goto out;
-            if (!prop)
-                goto atom_not_defined;
-
-            OBJ_DROP_PROPERTY(cx, obj2, prop);
-            lval = OBJECT_TO_JSVAL(obj);
-            goto do_incop;
-
-          case JSOP_INCPROP:
-          case JSOP_DECPROP:
-          case JSOP_PROPINC:
-          case JSOP_PROPDEC:
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-            lval = POP_OPND();
-            goto do_incop;
-
-          case JSOP_INCELEM:
-          case JSOP_DECELEM:
-          case JSOP_ELEMINC:
-          case JSOP_ELEMDEC:
-            POP_ELEMENT_ID(id);
-            lval = POP_OPND();
-
-          do_incop:
-            VALUE_TO_OBJECT(cx, lval, obj);
-
-            /* The operand must contain a number. */
-            SAVE_SP(fp);
-            CACHED_GET(OBJ_GET_PROPERTY(cx, obj, id, &rval));
-            if (!ok)
-                goto out;
-
-            /* The expression result goes in rtmp, the updated value in rval. */
-            if (JSVAL_IS_INT(rval) &&
-                rval != INT_TO_JSVAL(JSVAL_INT_MIN) &&
-                rval != INT_TO_JSVAL(JSVAL_INT_MAX)) {
-                if (cs->format & JOF_POST) {
-                    rtmp = rval;
-                    (cs->format & JOF_INC) ? (rval += 2) : (rval -= 2);
-                } else {
-                    (cs->format & JOF_INC) ? (rval += 2) : (rval -= 2);
-                    rtmp = rval;
-                }
-            } else {
-
-/*
- * Initially, rval contains the value to increment or decrement, which is not
- * yet converted.  As above, the expression result goes in rtmp, the updated
- * value goes in rval.
- */
-#define NONINT_INCREMENT_OP()                                                 \
-    JS_BEGIN_MACRO                                                            \
-        VALUE_TO_NUMBER(cx, rval, d);                                         \
-        if (cs->format & JOF_POST) {                                          \
-            rtmp = rval;                                                      \
-            if (!JSVAL_IS_NUMBER(rtmp)) {                                     \
-                ok = js_NewNumberValue(cx, d, &rtmp);                         \
-                if (!ok)                                                      \
-                    goto out;                                                 \
-            }                                                                 \
-            (cs->format & JOF_INC) ? d++ : d--;                               \
-            ok = js_NewNumberValue(cx, d, &rval);                             \
-        } else {                                                              \
-            (cs->format & JOF_INC) ? ++d : --d;                               \
-            ok = js_NewNumberValue(cx, d, &rval);                             \
-            rtmp = rval;                                                      \
-        }                                                                     \
-        if (!ok)                                                              \
-            goto out;                                                         \
-    JS_END_MACRO
-
-                NONINT_INCREMENT_OP();
-            }
-
-            CACHED_SET(OBJ_SET_PROPERTY(cx, obj, id, &rval));
-            if (!ok)
-                goto out;
-            PUSH_OPND(rtmp);
-            break;
-
-/*
- * NB: This macro can't use JS_BEGIN_MACRO/JS_END_MACRO around its body because
- * it must break from the switch case that calls it, not from the do...while(0)
- * loop created by the JS_BEGIN/END_MACRO brackets.
- */
-#define FAST_INCREMENT_OP(SLOT,COUNT,BASE,PRE,OP,MINMAX)                      \
-    slot = (uintN)SLOT;                                                       \
-    JS_ASSERT(slot < fp->fun->COUNT);                                         \
-    vp = fp->BASE + slot;                                                     \
-    rval = *vp;                                                               \
-    if (JSVAL_IS_INT(rval) &&                                                 \
-        rval != INT_TO_JSVAL(JSVAL_INT_##MINMAX)) {                           \
-        PRE = rval;                                                           \
-        rval OP 2;                                                            \
-        *vp = rval;                                                           \
-        PUSH_OPND(PRE);                                                       \
-        break;                                                                \
-    }                                                                         \
-    goto do_nonint_fast_incop;
-
-          case JSOP_INCARG:
-            FAST_INCREMENT_OP(GET_ARGNO(pc), nargs, argv, rval, +=, MAX);
-          case JSOP_DECARG:
-            FAST_INCREMENT_OP(GET_ARGNO(pc), nargs, argv, rval, -=, MIN);
-          case JSOP_ARGINC:
-            FAST_INCREMENT_OP(GET_ARGNO(pc), nargs, argv, rtmp, +=, MAX);
-          case JSOP_ARGDEC:
-            FAST_INCREMENT_OP(GET_ARGNO(pc), nargs, argv, rtmp, -=, MIN);
-
-          case JSOP_INCVAR:
-            FAST_INCREMENT_OP(GET_VARNO(pc), nvars, vars, rval, +=, MAX);
-          case JSOP_DECVAR:
-            FAST_INCREMENT_OP(GET_VARNO(pc), nvars, vars, rval, -=, MIN);
-          case JSOP_VARINC:
-            FAST_INCREMENT_OP(GET_VARNO(pc), nvars, vars, rtmp, +=, MAX);
-          case JSOP_VARDEC:
-            FAST_INCREMENT_OP(GET_VARNO(pc), nvars, vars, rtmp, -=, MIN);
-
-#undef FAST_INCREMENT_OP
-
-          do_nonint_fast_incop:
-            NONINT_INCREMENT_OP();
-            *vp = rval;
-            PUSH_OPND(rtmp);
-            break;
-
-          case JSOP_GETPROP:
-            /* Get an immediate atom naming the property. */
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-            PROPERTY_OP(-1, CACHED_GET(OBJ_GET_PROPERTY(cx, obj, id, &rval)));
-            STORE_OPND(-1, rval);
-            break;
-
-          case JSOP_SETPROP:
-            /* Pop the right-hand side into rval for OBJ_SET_PROPERTY. */
-            rval = FETCH_OPND(-1);
-
-            /* Get an immediate atom naming the property. */
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-            PROPERTY_OP(-2, CACHED_SET(OBJ_SET_PROPERTY(cx, obj, id, &rval)));
-            sp--;
-            STORE_OPND(-1, rval);
-            break;
-
-          case JSOP_GETELEM:
-            ELEMENT_OP(-1, CACHED_GET(OBJ_GET_PROPERTY(cx, obj, id, &rval)));
-            sp--;
-            STORE_OPND(-1, rval);
-            break;
-
-          case JSOP_SETELEM:
-            rval = FETCH_OPND(-1);
-            ELEMENT_OP(-2, CACHED_SET(OBJ_SET_PROPERTY(cx, obj, id, &rval)));
-            sp -= 2;
-            STORE_OPND(-1, rval);
-            break;
-
-          case JSOP_ENUMELEM:
-            /* Funky: the value to set is under the [obj, id] pair. */
-            FETCH_ELEMENT_ID(-1, id);
-            lval = FETCH_OPND(-2);
-            VALUE_TO_OBJECT(cx, lval, obj);
-            rval = FETCH_OPND(-3);
-            SAVE_SP(fp);
-            ok = OBJ_SET_PROPERTY(cx, obj, id, &rval);
-            if (!ok)
-                goto out;
-            sp -= 3;
-            break;
-
-/*
- * LAZY_ARGS_THISP allows the JSOP_ARGSUB bytecode to defer creation of the
- * arguments object until it is truly needed.  JSOP_ARGSUB optimizes away
- * arguments objects when the only uses of the 'arguments' parameter are to
- * fetch individual actual parameters.  But if such a use were then invoked,
- * e.g., arguments[i](), the 'this' parameter would and must bind to the
- * caller's arguments object.  So JSOP_ARGSUB sets obj to LAZY_ARGS_THISP.
- */
-#define LAZY_ARGS_THISP ((JSObject *) 1)
-
-          case JSOP_PUSHOBJ:
-            if (obj == LAZY_ARGS_THISP && !(obj = js_GetArgsObject(cx, fp))) {
-                ok = JS_FALSE;
-                goto out;
-            }
-            PUSH_OPND(OBJECT_TO_JSVAL(obj));
-            break;
-
-          case JSOP_CALL:
-          case JSOP_EVAL:
-            argc = GET_ARGC(pc);
-            vp = sp - (argc + 2);
-            lval = *vp;
-            SAVE_SP(fp);
-
-            if (JSVAL_IS_FUNCTION(cx, lval) &&
-                (obj = JSVAL_TO_OBJECT(lval),
-                 fun = (JSFunction *) JS_GetPrivate(cx, obj),
-                 !fun->native &&
-                 !(fun->flags & (JSFUN_HEAVYWEIGHT | JSFUN_BOUND_METHOD)) &&
-                 argc >= (uintN)(fun->nargs + fun->extra)))
-          /* inline_call: */
-            {
-                uintN nframeslots, nvars;
-                void *newmark;
-                JSInlineFrame *newifp;
-                JSInterpreterHook hook;
-
-                /* Restrict recursion of lightweight functions. */
-                if (inlineCallCount == MAX_INLINE_CALL_COUNT) {
-                    JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
-                                         JSMSG_OVER_RECURSED);
-                    ok = JS_FALSE;
-                    goto out;
-                }
-
-#if JS_HAS_JIT
-                /* ZZZbe should do this only if interpreted often enough. */
-                ok = jsjit_Compile(cx, fun);
-                if (!ok)
-                    goto out;
-#endif
-
-                /* Compute the number of stack slots needed for fun. */
-                nframeslots = (sizeof(JSInlineFrame) + sizeof(jsval) - 1)
-                              / sizeof(jsval);
-                nvars = fun->nvars;
-                script = fun->script;
-                depth = (jsint) script->depth;
-
-                /* Allocate the frame and space for vars and operands. */
-                newsp = js_AllocRawStack(cx, nframeslots + nvars + 2 * depth,
-                                         &newmark);
-                if (!newsp) {
-                    ok = JS_FALSE;
-                    goto bad_inline_call;
-                }
-                newifp = (JSInlineFrame *) newsp;
-                newsp += nframeslots;
-
-                /* Initialize the stack frame. */
-                memset(newifp, 0, sizeof(JSInlineFrame));
-                newifp->frame.script = script;
-                newifp->frame.fun = fun;
-                newifp->frame.argc = argc;
-                newifp->frame.argv = vp + 2;
-                newifp->frame.rval = JSVAL_VOID;
-                newifp->frame.nvars = nvars;
-                newifp->frame.vars = newsp;
-                newifp->frame.down = fp;
-                newifp->frame.scopeChain = OBJ_GET_PARENT(cx, obj);
-                newifp->mark = newmark;
-
-                /* Compute the 'this' parameter now that argv is set. */
-                ok = ComputeThis(cx, JSVAL_TO_OBJECT(vp[1]), &newifp->frame);
-                if (!ok) {
-                    js_FreeRawStack(cx, newmark);
-                    goto bad_inline_call;
-                }
-
-                /* Push void to initialize local variables. */
-                sp = newsp;
-                while (nvars--)
-                    PUSH(JSVAL_VOID);
-                sp += depth;
-                newifp->frame.spbase = sp;
-                SAVE_SP(&newifp->frame);
-
-                /* Call the debugger hook if present. */
-                hook = cx->runtime->callHook;
-                if (hook) {
-                    newifp->hookData = hook(cx, &newifp->frame, JS_TRUE, 0,
-                                            cx->runtime->callHookData);
-                    LOAD_INTERRUPT_HANDLER(rt);
-                }
-
-                /* Switch to new version if currentVersion wasn't overridden. */
-                newifp->callerVersion = cx->version;
-                if (cx->version == currentVersion) {
-                    currentVersion = script->version;
-                    if (currentVersion != cx->version)
-                        JS_SetVersion(cx, currentVersion);
-                }
-
-                /* Push the frame and set interpreter registers. */
-                cx->fp = fp = &newifp->frame;
-                pc = script->code;
-                endpc = pc + script->length;
-                inlineCallCount++;
-                JS_RUNTIME_METER(rt, inlineCalls);
-                continue;
-
-              bad_inline_call:
-                script = fp->script;
-                depth = (jsint) script->depth;
-                goto out;
-            }
-
-            ok = js_Invoke(cx, argc, 0);
-            RESTORE_SP(fp);
-            LOAD_INTERRUPT_HANDLER(rt);
-            if (!ok)
-                goto out;
-            JS_RUNTIME_METER(rt, nonInlineCalls);
-#if JS_HAS_LVALUE_RETURN
-            if (cx->rval2set) {
-                /*
-                 * Sneaky: use the stack depth we didn't claim in our budget,
-                 * but that we know is there on account of [fun, this] already
-                 * having been pushed, at a minimum (if no args).  Those two
-                 * slots have been popped and [rval] has been pushed, which
-                 * leaves one more slot for rval2 before we might overflow.
-                 *
-                 * NB: rval2 must be the property identifier, and rval the
-                 * object from which to get the property.  The pair form an
-                 * ECMA "reference type", which can be used on the right- or
-                 * left-hand side of assignment ops.  Only native methods can
-                 * return reference types.  See JSOP_SETCALL just below for
-                 * the left-hand-side case.
-                 */
-                PUSH_OPND(cx->rval2);
-                cx->rval2set = JS_FALSE;
-                ELEMENT_OP(-1, ok = OBJ_GET_PROPERTY(cx, obj, id, &rval));
-                sp--;
-                STORE_OPND(-1, rval);
-            }
-#endif
-            obj = NULL;
-            break;
-
-#if JS_HAS_LVALUE_RETURN
-          case JSOP_SETCALL:
-            argc = GET_ARGC(pc);
-            SAVE_SP(fp);
-            ok = js_Invoke(cx, argc, 0);
-            RESTORE_SP(fp);
-            LOAD_INTERRUPT_HANDLER(rt);
-            if (!ok)
-                goto out;
-            if (!cx->rval2set) {
-                JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
-                                     JSMSG_BAD_LEFTSIDE_OF_ASS);
-                ok = JS_FALSE;
-                goto out;
-            }
-            PUSH_OPND(cx->rval2);
-            cx->rval2set = JS_FALSE;
-            obj = NULL;
-            break;
-#endif
-
-          case JSOP_NAME:
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-
-            SAVE_SP(fp);
-            ok = js_FindProperty(cx, id, &obj, &obj2, &prop);
-            if (!ok)
-                goto out;
-            if (!prop) {
-                /* Kludge to allow (typeof foo == "undefined") tests. */
-                for (pc2 = pc + len; pc2 < endpc; pc2++) {
-                    op2 = (JSOp)*pc2;
-                    if (op2 == JSOP_TYPEOF) {
-                        PUSH_OPND(JSVAL_VOID);
-                        goto advance_pc;
-                    }
-                    if (op2 != JSOP_GROUP)
-                        break;
-                }
-                goto atom_not_defined;
-            }
-
-            /* Take the slow path if prop was not found in a native object. */
-            if (!OBJ_IS_NATIVE(obj) || !OBJ_IS_NATIVE(obj2)) {
-                OBJ_DROP_PROPERTY(cx, obj2, prop);
-                ok = OBJ_GET_PROPERTY(cx, obj, id, &rval);
-                if (!ok)
-                    goto out;
-                PUSH_OPND(rval);
-                break;
-            }
-
-            /* Get and push the obj[id] property's value. */
-            sprop = (JSScopeProperty *)prop;
-            slot = (uintN)sprop->slot;
-            rval = (slot != SPROP_INVALID_SLOT)
-                   ? LOCKED_OBJ_GET_SLOT(obj2, slot)
-                   : JSVAL_VOID;
-            JS_UNLOCK_OBJ(cx, obj2);
-            ok = SPROP_GET(cx, sprop, obj, obj2, &rval);
-            JS_LOCK_OBJ(cx, obj2);
-            if (!ok) {
-                OBJ_DROP_PROPERTY(cx, obj2, prop);
-                goto out;
-            }
-            if (SPROP_HAS_VALID_SLOT(sprop, OBJ_SCOPE(obj2)))
-                LOCKED_OBJ_SET_SLOT(obj2, slot, rval);
-            OBJ_DROP_PROPERTY(cx, obj2, prop);
-            PUSH_OPND(rval);
-            break;
-
-          case JSOP_UINT16:
-            i = (jsint) GET_ATOM_INDEX(pc);
-            rval = INT_TO_JSVAL(i);
-            PUSH_OPND(rval);
-            obj = NULL;
-            break;
-
-          case JSOP_NUMBER:
-          case JSOP_STRING:
-            atom = GET_ATOM(cx, script, pc);
-            PUSH_OPND(ATOM_KEY(atom));
-            obj = NULL;
-            break;
-
-          case JSOP_OBJECT:
-          {
-#if 0
-            jsatomid atomIndex;
-            JSAtomMap *atomMap;
-
-            /*
-             * Get a suitable object from an atom mapped by the bytecode at pc.
-             *
-             * We must handle the case where a regexp object literal is used in
-             * a different global at execution time from the global with which
-             * it was scanned at compile time, in order to rewrap the JSRegExp
-             * struct with a new object having the right prototype and parent.
-             *
-             * Unlike JSOP_DEFFUN and other prolog bytecodes, we don't want to
-             * pay a script prolog execution price for all regexp literals in a
-             * script (many may not be used by a particular execution of that
-             * script, depending on control flow), so we do all fp->objAtomMap
-             * initialization lazily, here under JSOP_OBJECT.
-             *
-             * XXX This code is specific to regular expression objects.  If we
-             * need JSOP_OBJECT for other kinds of object literals, we should
-             * push cloning down under JSObjectOps.  Also, fp->objAtomMap is
-             * used only for object atoms, so it's sparse (wasting some stack
-             * space) and as its name implies, you can't get non-object atoms
-             * from it.
-             */
-            atomIndex = GET_ATOM_INDEX(pc);
-            atomMap = fp->objAtomMap;
-            atom = atomMap ? atomMap->vector[atomIndex] : NULL;
-            if (!atom) {
-                /* Let atom and obj denote the regexp (object) mapped by pc. */
-                atom = js_GetAtom(cx, &script->atomMap, atomIndex);
-                JS_ASSERT(ATOM_IS_OBJECT(atom));
-                obj = ATOM_TO_OBJECT(atom);
-                JS_ASSERT(OBJ_GET_CLASS(cx, obj) == &js_RegExpClass);
-
-                /* Compute the current global object in obj2. */
-                obj2 = fp->scopeChain;
-                while ((parent = OBJ_GET_PARENT(cx, obj2)) != NULL)
-                    obj2 = parent;
-
-                /*
-                 * If obj's parent is not obj2, we must clone obj so that it
-                 * has the right parent, and therefore, the right prototype.
-                 *
-                 * Yes, this means we assume that the correct RegExp.prototype
-                 * to which regexp instances (including literals) delegate can
-                 * be distinguished solely by the instance's parent, which was
-                 * set to the parent of the RegExp constructor function object
-                 * when the instance was created.  In other words,
-                 *
-                 *   (/x/.__parent__ == RegExp.__parent__) implies
-                 *   (/x/.__proto__ == RegExp.prototype)
-                 *
-                 * (unless you assign a different object to RegExp.prototype
-                 * at runtime, in which case, ECMA doesn't specify operation,
-                 * and you get what you deserve).
-                 *
-                 * This same coupling between instance parent and constructor
-                 * parent turns up elsewhere (see jsobj.c's FindConstructor,
-                 * js_ConstructObject, and js_NewObject).  It's fundamental.
-                 */
-                if (OBJ_GET_PARENT(cx, obj) != obj2) {
-                    obj = js_CloneRegExpObject(cx, obj, obj2);
-                    if (!obj) {
-                        ok = JS_FALSE;
-                        goto out;
-                    }
-
-                    atom = js_AtomizeObject(cx, obj, 0);
-                    if (!atom) {
-                        ok = JS_FALSE;
-                        goto out;
-                    }
-                }
-
-                /*
-                 * If fp->objAtomMap is null, initialize it now so we can map
-                 * atom (whether atom is newly created for a cloned object, or
-                 * the original atom mapped by script) for faster performance
-                 * next time through JSOP_OBJECT.
-                 */
-                if (!atomMap) {
-                    jsatomid mapLength = script->atomMap.length;
-                    size_t vectorBytes = mapLength * sizeof(JSAtom *);
-
-                    /* Allocate an override atom map from cx->stackPool. */
-                    JS_ARENA_ALLOCATE_CAST(atomMap, JSAtomMap *,
-                                           &cx->stackPool,
-                                           sizeof(JSAtomMap) + vectorBytes);
-                    if (!atomMap) {
-                        JS_ReportOutOfMemory(cx);
-                        ok = JS_FALSE;
-                        goto out;
-                    }
-
-                    atomMap->length = mapLength;
-                    atomMap->vector = (JSAtom **)(atomMap + 1);
-                    memset(atomMap->vector, 0, vectorBytes);
-                    fp->objAtomMap = atomMap;
-                }
-                atomMap->vector[atomIndex] = atom;
-            }
-#else
-            atom = GET_ATOM(cx, script, pc);
-            JS_ASSERT(ATOM_IS_OBJECT(atom));
-#endif
-            rval = ATOM_KEY(atom);
-            PUSH_OPND(rval);
-            obj = NULL;
-            break;
-          }
-
-          case JSOP_ZERO:
-            PUSH_OPND(JSVAL_ZERO);
-            obj = NULL;
-            break;
-
-          case JSOP_ONE:
-            PUSH_OPND(JSVAL_ONE);
-            obj = NULL;
-            break;
-
-          case JSOP_NULL:
-            PUSH_OPND(JSVAL_NULL);
-            obj = NULL;
-            break;
-
-          case JSOP_THIS:
-            PUSH_OPND(OBJECT_TO_JSVAL(fp->thisp));
-            obj = NULL;
-            break;
-
-          case JSOP_FALSE:
-            PUSH_OPND(JSVAL_FALSE);
-            obj = NULL;
-            break;
-
-          case JSOP_TRUE:
-            PUSH_OPND(JSVAL_TRUE);
-            obj = NULL;
-            break;
-
-#if JS_HAS_SWITCH_STATEMENT
-          case JSOP_TABLESWITCH:
-            pc2 = pc;
-            len = GET_JUMP_OFFSET(pc2);
-
-            /*
-             * ECMAv2 forbids conversion of discriminant, so we will skip to
-             * the default case if the discriminant isn't already an int jsval.
-             * (This opcode is emitted only for dense jsint-domain switches.)
-             */
-            if (cx->version == JSVERSION_DEFAULT ||
-                cx->version >= JSVERSION_1_4) {
-                rval = POP_OPND();
-                if (!JSVAL_IS_INT(rval))
-                    break;
-                i = JSVAL_TO_INT(rval);
-            } else {
-                FETCH_INT(cx, -1, i);
-                sp--;
-            }
-
-            pc2 += JUMP_OFFSET_LEN;
-            low = GET_JUMP_OFFSET(pc2);
-            pc2 += JUMP_OFFSET_LEN;
-            high = GET_JUMP_OFFSET(pc2);
-
-            i -= low;
-            if ((jsuint)i < (jsuint)(high - low + 1)) {
-                pc2 += JUMP_OFFSET_LEN + JUMP_OFFSET_LEN * i;
-                off = (jsint) GET_JUMP_OFFSET(pc2);
-                if (off)
-                    len = off;
-            }
-            break;
-
-          case JSOP_LOOKUPSWITCH:
-            lval = POP_OPND();
-            pc2 = pc;
-            len = GET_JUMP_OFFSET(pc2);
-
-            if (!JSVAL_IS_NUMBER(lval) &&
-                !JSVAL_IS_STRING(lval) &&
-                !JSVAL_IS_BOOLEAN(lval)) {
-                goto advance_pc;
-            }
-
-            pc2 += JUMP_OFFSET_LEN;
-            npairs = (jsint) GET_ATOM_INDEX(pc2);
-            pc2 += ATOM_INDEX_LEN;
-
-#define SEARCH_PAIRS(MATCH_CODE)                                              \
-    while (npairs) {                                                          \
-        atom = GET_ATOM(cx, script, pc2);                                     \
-        rval = ATOM_KEY(atom);                                                \
-        MATCH_CODE                                                            \
-        if (match) {                                                          \
-            pc2 += ATOM_INDEX_LEN;                                            \
-            len = GET_JUMP_OFFSET(pc2);                                       \
-            goto advance_pc;                                                  \
-        }                                                                     \
-        pc2 += ATOM_INDEX_LEN + JUMP_OFFSET_LEN;                              \
-        npairs--;                                                             \
-    }
-            if (JSVAL_IS_STRING(lval)) {
-                str  = JSVAL_TO_STRING(lval);
-                SEARCH_PAIRS(
-                    match = (JSVAL_IS_STRING(rval) &&
-                             ((str2 = JSVAL_TO_STRING(rval)) == str ||
-                              !js_CompareStrings(str2, str)));
-                )
-            } else if (JSVAL_IS_DOUBLE(lval)) {
-                d = *JSVAL_TO_DOUBLE(lval);
-                SEARCH_PAIRS(
-                    match = (JSVAL_IS_DOUBLE(rval) &&
-                             *JSVAL_TO_DOUBLE(rval) == d);
-                )
-            } else {
-                SEARCH_PAIRS(
-                    match = (lval == rval);
-                )
-            }
-#undef SEARCH_PAIRS
-            break;
-
-          case JSOP_TABLESWITCHX:
-            pc2 = pc;
-            len = GET_JUMPX_OFFSET(pc2);
-
-            /*
-             * ECMAv2 forbids conversion of discriminant, so we will skip to
-             * the default case if the discriminant isn't already an int jsval.
-             * (This opcode is emitted only for dense jsint-domain switches.)
-             */
-            if (cx->version == JSVERSION_DEFAULT ||
-                cx->version >= JSVERSION_1_4) {
-                rval = POP_OPND();
-                if (!JSVAL_IS_INT(rval))
-                    break;
-                i = JSVAL_TO_INT(rval);
-            } else {
-                FETCH_INT(cx, -1, i);
-                sp--;
-            }
-
-            pc2 += JUMPX_OFFSET_LEN;
-            low = GET_JUMP_OFFSET(pc2);
-            pc2 += JUMP_OFFSET_LEN;
-            high = GET_JUMP_OFFSET(pc2);
-
-            i -= low;
-            if ((jsuint)i < (jsuint)(high - low + 1)) {
-                pc2 += JUMP_OFFSET_LEN + JUMPX_OFFSET_LEN * i;
-                off = (jsint) GET_JUMPX_OFFSET(pc2);
-                if (off)
-                    len = off;
-            }
-            break;
-
-          case JSOP_LOOKUPSWITCHX:
-            lval = POP_OPND();
-            pc2 = pc;
-            len = GET_JUMPX_OFFSET(pc2);
-
-            if (!JSVAL_IS_NUMBER(lval) &&
-                !JSVAL_IS_STRING(lval) &&
-                !JSVAL_IS_BOOLEAN(lval)) {
-                goto advance_pc;
-            }
-
-            pc2 += JUMPX_OFFSET_LEN;
-            npairs = (jsint) GET_ATOM_INDEX(pc2);
-            pc2 += ATOM_INDEX_LEN;
-
-#define SEARCH_EXTENDED_PAIRS(MATCH_CODE)                                     \
-    while (npairs) {                                                          \
-        atom = GET_ATOM(cx, script, pc2);                                     \
-        rval = ATOM_KEY(atom);                                                \
-        MATCH_CODE                                                            \
-        if (match) {                                                          \
-            pc2 += ATOM_INDEX_LEN;                                            \
-            len = GET_JUMPX_OFFSET(pc2);                                      \
-            goto advance_pc;                                                  \
-        }                                                                     \
-        pc2 += ATOM_INDEX_LEN + JUMPX_OFFSET_LEN;                             \
-        npairs--;                                                             \
-    }
-            if (JSVAL_IS_STRING(lval)) {
-                str  = JSVAL_TO_STRING(lval);
-                SEARCH_EXTENDED_PAIRS(
-                    match = (JSVAL_IS_STRING(rval) &&
-                             ((str2 = JSVAL_TO_STRING(rval)) == str ||
-                              !js_CompareStrings(str2, str)));
-                )
-            } else if (JSVAL_IS_DOUBLE(lval)) {
-                d = *JSVAL_TO_DOUBLE(lval);
-                SEARCH_EXTENDED_PAIRS(
-                    match = (JSVAL_IS_DOUBLE(rval) &&
-                             *JSVAL_TO_DOUBLE(rval) == d);
-                )
-            } else {
-                SEARCH_EXTENDED_PAIRS(
-                    match = (lval == rval);
-                )
-            }
-#undef SEARCH_EXTENDED_PAIRS
-            break;
-
-          case JSOP_CONDSWITCH:
-            break;
-
-#endif /* JS_HAS_SWITCH_STATEMENT */
-
-#if JS_HAS_EXPORT_IMPORT
-          case JSOP_EXPORTALL:
-            obj = fp->varobj;
-            ida = JS_Enumerate(cx, obj);
-            if (!ida) {
-                ok = JS_FALSE;
-            } else {
-                for (i = 0, j = ida->length; i < j; i++) {
-                    id = ida->vector[i];
-                    ok = OBJ_LOOKUP_PROPERTY(cx, obj, id, &obj2, &prop);
-                    if (!ok)
-                        break;
-                    if (!prop)
-                        continue;
-                    ok = OBJ_GET_ATTRIBUTES(cx, obj, id, prop, &attrs);
-                    if (ok) {
-                        attrs |= JSPROP_EXPORTED;
-                        ok = OBJ_SET_ATTRIBUTES(cx, obj, id, prop, &attrs);
-                    }
-                    OBJ_DROP_PROPERTY(cx, obj2, prop);
-                    if (!ok)
-                        break;
-                }
-                JS_DestroyIdArray(cx, ida);
-            }
-            break;
-
-          case JSOP_EXPORTNAME:
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-            obj  = fp->varobj;
-            ok = OBJ_LOOKUP_PROPERTY(cx, obj, id, &obj2, &prop);
-            if (!ok)
-                goto out;
-            if (!prop) {
-                ok = OBJ_DEFINE_PROPERTY(cx, obj, id, JSVAL_VOID, NULL, NULL,
-                                         JSPROP_EXPORTED, NULL);
-            } else {
-                ok = OBJ_GET_ATTRIBUTES(cx, obj, id, prop, &attrs);
-                if (ok) {
-                    attrs |= JSPROP_EXPORTED;
-                    ok = OBJ_SET_ATTRIBUTES(cx, obj, id, prop, &attrs);
-                }
-                OBJ_DROP_PROPERTY(cx, obj2, prop);
-            }
-            if (!ok)
-                goto out;
-            break;
-
-          case JSOP_IMPORTALL:
-            id = (jsid)JSVAL_VOID;
-            PROPERTY_OP(-1, ok = ImportProperty(cx, obj, id));
-            sp--;
-            break;
-
-          case JSOP_IMPORTPROP:
-            /* Get an immediate atom naming the property. */
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-            PROPERTY_OP(-1, ok = ImportProperty(cx, obj, id));
-            sp--;
-            break;
-
-          case JSOP_IMPORTELEM:
-            ELEMENT_OP(-1, ok = ImportProperty(cx, obj, id));
-            sp -= 2;
-            break;
-#endif /* JS_HAS_EXPORT_IMPORT */
-
-          case JSOP_TRAP:
-            switch (JS_HandleTrap(cx, script, pc, &rval)) {
-              case JSTRAP_ERROR:
-                ok = JS_FALSE;
-                goto out;
-              case JSTRAP_CONTINUE:
-                JS_ASSERT(JSVAL_IS_INT(rval));
-                op = (JSOp) JSVAL_TO_INT(rval);
-                JS_ASSERT((uintN)op < (uintN)JSOP_LIMIT);
-                LOAD_INTERRUPT_HANDLER(rt);
-                goto do_op;
-              case JSTRAP_RETURN:
-                fp->rval = rval;
-                goto out;
-#if JS_HAS_EXCEPTIONS
-              case JSTRAP_THROW:
-                cx->throwing = JS_TRUE;
-                cx->exception = rval;
-                ok = JS_FALSE;
-                goto out;
-#endif /* JS_HAS_EXCEPTIONS */
-              default:;
-            }
-            LOAD_INTERRUPT_HANDLER(rt);
-            break;
-
-          case JSOP_ARGUMENTS:
-            SAVE_SP(fp);
-            ok = js_GetArgsValue(cx, fp, &rval);
-            if (!ok)
-                goto out;
-            PUSH_OPND(rval);
-            break;
-
-          case JSOP_ARGSUB:
-            id = (jsid) INT_TO_JSVAL(GET_ARGNO(pc));
-            SAVE_SP(fp);
-            ok = js_GetArgsProperty(cx, fp, id, &obj, &rval);
-            if (!ok)
-                goto out;
-            if (!obj) {
-                /*
-                 * If arguments was not overridden by eval('arguments = ...'),
-                 * set obj to the magic cookie respected by JSOP_PUSHOBJ, just
-                 * in case this bytecode is part of an 'arguments[i](j, k)' or
-                 * similar such invocation sequence, where the function that
-                 * is invoked expects its 'this' parameter to be the caller's
-                 * arguments object.
-                 */
-                obj = LAZY_ARGS_THISP;
-            }
-            PUSH_OPND(rval);
-            break;
-
-#undef LAZY_ARGS_THISP
-
-          case JSOP_ARGCNT:
-            id = (jsid) rt->atomState.lengthAtom;
-            SAVE_SP(fp);
-            ok = js_GetArgsProperty(cx, fp, id, &obj, &rval);
-            if (!ok)
-                goto out;
-            PUSH_OPND(rval);
-            break;
-
-          case JSOP_GETARG:
-            slot = GET_ARGNO(pc);
-            JS_ASSERT(slot < fp->fun->nargs);
-            PUSH_OPND(fp->argv[slot]);
-            obj = NULL;
-            break;
-
-          case JSOP_SETARG:
-            slot = GET_ARGNO(pc);
-            JS_ASSERT(slot < fp->fun->nargs);
-            vp = &fp->argv[slot];
-            GC_POKE(cx, *vp);
-            *vp = FETCH_OPND(-1);
-            obj = NULL;
-            break;
-
-          case JSOP_GETVAR:
-            slot = GET_VARNO(pc);
-            JS_ASSERT(slot < fp->fun->nvars);
-            PUSH_OPND(fp->vars[slot]);
-            obj = NULL;
-            break;
-
-          case JSOP_SETVAR:
-            slot = GET_VARNO(pc);
-            JS_ASSERT(slot < fp->fun->nvars);
-            vp = &fp->vars[slot];
-            GC_POKE(cx, *vp);
-            *vp = FETCH_OPND(-1);
-            obj = NULL;
-            break;
-
-          case JSOP_DEFCONST:
-          case JSOP_DEFVAR:
-          {
-            JSBool defined;
-
-            atom = GET_ATOM(cx, script, pc);
-            obj = fp->varobj;
-            attrs = JSPROP_ENUMERATE;
-            if (!(fp->flags & JSFRAME_EVAL))
-                attrs |= JSPROP_PERMANENT;
-            if (op == JSOP_DEFCONST)
-                attrs |= JSPROP_READONLY;
-
-            /* Lookup id in order to check for redeclaration problems. */
-            id = (jsid)atom;
-            ok = js_CheckRedeclaration(cx, obj, id, attrs, &defined);
-            if (!ok)
-                goto out;
-
-            /* Bind a variable only if it's not yet defined. */
-            if (!defined) {
-                ok = OBJ_DEFINE_PROPERTY(cx, obj, id, JSVAL_VOID, NULL, NULL,
-                                         attrs, NULL);
-                if (!ok)
-                    goto out;
-            }
-            break;
-          }
-
-          case JSOP_DEFFUN:
-          {
-            uintN flags;
-
-            atom = GET_ATOM(cx, script, pc);
-            obj = ATOM_TO_OBJECT(atom);
-            fun = (JSFunction *) JS_GetPrivate(cx, obj);
-            id = (jsid) fun->atom;
-
-            /*
-             * We must be at top-level (either outermost block that forms a
-             * function's body, or a global) scope, not inside an expression
-             * (JSOP_{ANON,NAMED}FUNOBJ) or compound statement (JSOP_CLOSURE)
-             * in the same compilation unit (ECMA Program).
-             *
-             * However, we could be in a Program being eval'd from inside a
-             * with statement, so we need to distinguish variables object from
-             * scope chain head.  Hence the two assignments to parent below.
-             * First we make sure the function object we're defining has the
-             * right scope chain.  Then we define its name in fp->varobj.
-             *
-             * If static link is not current scope, clone fun's object to link
-             * to the current scope via parent.  This clause exists to enable
-             * sharing of compiled functions among multiple equivalent scopes,
-             * splitting the cost of compilation evenly among the scopes and
-             * amortizing it over a number of executions.  Examples include XUL
-             * scripts and event handlers shared among Mozilla chrome windows,
-             * and server-side JS user-defined functions shared among requests.
-             *
-             * NB: The Script object exposes compile and exec in the language,
-             * such that this clause introduces an incompatible change from old
-             * JS versions that supported Script.  Such a JS version supported
-             * executing a script that defined and called functions scoped by
-             * the compile-time static link, not by the exec-time scope chain.
-             *
-             * We sacrifice compatibility, breaking such scripts, in order to
-             * promote compile-cost sharing and amortizing, and because Script
-             * is not and will not be standardized.
-             */
-            parent = fp->scopeChain;
-            if (OBJ_GET_PARENT(cx, obj) != parent) {
-                obj = js_CloneFunctionObject(cx, obj, parent);
-                if (!obj) {
-                    ok = JS_FALSE;
-                    goto out;
-                }
-            }
-
-            /*
-             * ECMA requires functions defined when entering Global code to be
-             * permanent, and functions defined when entering Eval code to be
-             * impermanent.
-             */
-            attrs = JSPROP_ENUMERATE;
-            if (!(fp->flags & JSFRAME_EVAL))
-                attrs |= JSPROP_PERMANENT;
-
-            /*
-             * Load function flags that are also property attributes.  Getters
-             * and setters do not need a slot, their value is stored elsewhere
-             * in the property itself, not in obj->slots.
-             */
-            flags = fun->flags & (JSFUN_GETTER | JSFUN_SETTER);
-            if (flags)
-                attrs |= flags | JSPROP_SHARED;
-
-            /*
-             * Check for a const property of the same name -- or any kind
-             * of property if executing with the strict option.  We check
-             * here at runtime as well as at compile-time, to handle eval
-             * as well as multiple HTML script tags.
-             */
-            parent = fp->varobj;
-            ok = js_CheckRedeclaration(cx, parent, id, attrs, &cond);
-            if (!ok)
-                goto out;
-
-            ok = OBJ_DEFINE_PROPERTY(cx, parent, id,
-                                     flags ? JSVAL_VOID : OBJECT_TO_JSVAL(obj),
-                                     (flags & JSFUN_GETTER)
-                                     ? (JSPropertyOp) obj
-                                     : NULL,
-                                     (flags & JSFUN_SETTER)
-                                     ? (JSPropertyOp) obj
-                                     : NULL,
-                                     attrs,
-                                     NULL);
-            if (!ok)
-                goto out;
-            break;
-          }
-
-#if JS_HAS_LEXICAL_CLOSURE
-          case JSOP_DEFLOCALFUN:
-            /*
-             * Define a local function (i.e., one nested at the top level of
-             * another function), parented by the current scope chain, and
-             * stored in a local variable slot that the compiler allocated.
-             * This is an optimization over JSOP_DEFFUN that avoids requiring
-             * a call object for the outer function's activation.
-             */
-            pc2 = pc;
-            slot = GET_VARNO(pc2);
-            pc2 += VARNO_LEN;
-            atom = GET_ATOM(cx, script, pc2);
-            obj = ATOM_TO_OBJECT(atom);
-            fun = (JSFunction *) JS_GetPrivate(cx, obj);
-
-            parent = fp->scopeChain;
-            if (OBJ_GET_PARENT(cx, obj) != parent) {
-                obj = js_CloneFunctionObject(cx, obj, parent);
-                if (!obj) {
-                    ok = JS_FALSE;
-                    goto out;
-                }
-            }
-            fp->vars[slot] = OBJECT_TO_JSVAL(obj);
-            break;
-
-          case JSOP_ANONFUNOBJ:
-            /* Push the specified function object literal. */
-            atom = GET_ATOM(cx, script, pc);
-            obj = ATOM_TO_OBJECT(atom);
-
-            /* If re-parenting, push a clone of the function object. */
-            parent = fp->scopeChain;
-            if (OBJ_GET_PARENT(cx, obj) != parent) {
-                obj = js_CloneFunctionObject(cx, obj, parent);
-                if (!obj) {
-                    ok = JS_FALSE;
-                    goto out;
-                }
-            }
-            PUSH_OPND(OBJECT_TO_JSVAL(obj));
-            break;
-
-          case JSOP_NAMEDFUNOBJ:
-            /* ECMA ed. 3 FunctionExpression: function Identifier [etc.]. */
-            atom = GET_ATOM(cx, script, pc);
-            rval = ATOM_KEY(atom);
-            JS_ASSERT(JSVAL_IS_FUNCTION(cx, rval));
-
-            /*
-             * 1. Create a new object as if by the expression new Object().
-             * 2. Add Result(1) to the front of the scope chain.
-             *
-             * Step 2 is achieved by making the new object's parent be the
-             * current scope chain, and then making the new object the parent
-             * of the Function object clone.
-             */
-            SAVE_SP(fp);
-            parent = js_ConstructObject(cx, &js_ObjectClass, NULL,
-                                        fp->scopeChain, 0, NULL);
-            if (!parent) {
-                ok = JS_FALSE;
-                goto out;
-            }
-
-            /*
-             * 3. Create a new Function object as specified in section 13.2
-             * with [parameters and body specified by the function expression
-             * that was parsed by the compiler into a Function object, and
-             * saved in the script's atom map].
-             */
-            obj = js_CloneFunctionObject(cx, JSVAL_TO_OBJECT(rval), parent);
-            if (!obj) {
-                ok = JS_FALSE;
-                goto out;
-            }
-
-            /*
-             * 4. Create a property in the object Result(1).  The property's
-             * name is [fun->atom, the identifier parsed by the compiler],
-             * value is Result(3), and attributes are { DontDelete, ReadOnly }.
-             */
-            fun = (JSFunction *) JS_GetPrivate(cx, obj);
-            attrs = fun->flags & (JSFUN_GETTER | JSFUN_SETTER);
-            if (attrs)
-                attrs |= JSPROP_SHARED;
-            ok = OBJ_DEFINE_PROPERTY(cx, parent, (jsid)fun->atom,
-                                     attrs ? JSVAL_VOID : OBJECT_TO_JSVAL(obj),
-                                     (attrs & JSFUN_GETTER)
-                                     ? (JSPropertyOp) obj
-                                     : NULL,
-                                     (attrs & JSFUN_SETTER)
-                                     ? (JSPropertyOp) obj
-                                     : NULL,
-                                     attrs |
-                                     JSPROP_ENUMERATE | JSPROP_PERMANENT |
-                                     JSPROP_READONLY,
-                                     NULL);
-            if (!ok) {
-                cx->newborn[GCX_OBJECT] = NULL;
-                goto out;
-            }
-
-            /*
-             * 5. Remove Result(1) from the front of the scope chain [no-op].
-             * 6. Return Result(3).
-             */
-            PUSH_OPND(OBJECT_TO_JSVAL(obj));
-            break;
-
-          case JSOP_CLOSURE:
-            /*
-             * ECMA ed. 3 extension: a named function expression in a compound
-             * statement (not at the top statement level of global code, or at
-             * the top level of a function body).
-             *
-             * Get immediate operand atom, which is a function object literal.
-             * From it, get the function to close.
-             */
-            atom = GET_ATOM(cx, script, pc);
-            JS_ASSERT(JSVAL_IS_FUNCTION(cx, ATOM_KEY(atom)));
-            obj = ATOM_TO_OBJECT(atom);
-
-            /*
-             * Clone the function object with the current scope chain as the
-             * clone's parent.  The original function object is the prototype
-             * of the clone.  Do this only if re-parenting; the compiler may
-             * have seen the right parent already and created a sufficiently
-             * well-scoped function object.
-             */
-            parent = fp->scopeChain;
-            if (OBJ_GET_PARENT(cx, obj) != parent) {
-                obj = js_CloneFunctionObject(cx, obj, parent);
-                if (!obj) {
-                    ok = JS_FALSE;
-                    goto out;
-                }
-            }
-
-            /*
-             * Make a property in fp->varobj with id fun->atom and value obj,
-             * unless fun is a getter or setter (in which case, obj is cast to
-             * a JSPropertyOp and passed accordingly).
-             */
-            fun = (JSFunction *) JS_GetPrivate(cx, obj);
-            attrs = fun->flags & (JSFUN_GETTER | JSFUN_SETTER);
-            if (attrs)
-                attrs |= JSPROP_SHARED;
-            ok = OBJ_DEFINE_PROPERTY(cx, fp->varobj, (jsid)fun->atom,
-                                     attrs ? JSVAL_VOID : OBJECT_TO_JSVAL(obj),
-                                     (attrs & JSFUN_GETTER)
-                                     ? (JSPropertyOp) obj
-                                     : NULL,
-                                     (attrs & JSFUN_SETTER)
-                                     ? (JSPropertyOp) obj
-                                     : NULL,
-                                     attrs | JSPROP_ENUMERATE,
-                                     NULL);
-            if (!ok) {
-                cx->newborn[GCX_OBJECT] = NULL;
-                goto out;
-            }
-            break;
-#endif /* JS_HAS_LEXICAL_CLOSURE */
-
-#if JS_HAS_GETTER_SETTER
-          case JSOP_GETTER:
-          case JSOP_SETTER:
-            JS_ASSERT(len == 1);
-            op2 = (JSOp) *++pc;
-            cs = &js_CodeSpec[op2];
-            len = cs->length;
-            switch (op2) {
-              case JSOP_SETNAME:
-              case JSOP_SETPROP:
-                atom = GET_ATOM(cx, script, pc);
-                id   = (jsid)atom;
-                i = -1;
-                rval = FETCH_OPND(i);
-                goto gs_pop_lval;
-
-              case JSOP_SETELEM:
-                rval = FETCH_OPND(-1);
-                i = -2;
-                FETCH_ELEMENT_ID(i, id);
-              gs_pop_lval:
-                lval = FETCH_OPND(i-1);
-                VALUE_TO_OBJECT(cx, lval, obj);
-                break;
-
-#if JS_HAS_INITIALIZERS
-              case JSOP_INITPROP:
-                JS_ASSERT(sp - fp->spbase >= 2);
-                i = -1;
-                rval = FETCH_OPND(i);
-                atom = GET_ATOM(cx, script, pc);
-                id   = (jsid)atom;
-                goto gs_get_lval;
-
-              case JSOP_INITELEM:
-                JS_ASSERT(sp - fp->spbase >= 3);
-                rval = FETCH_OPND(-1);
-                i = -2;
-                FETCH_ELEMENT_ID(i, id);
-              gs_get_lval:
-                lval = FETCH_OPND(i-1);
-                JS_ASSERT(JSVAL_IS_OBJECT(lval));
-                obj = JSVAL_TO_OBJECT(lval);
-                break;
-#endif /* JS_HAS_INITIALIZERS */
-
-              default:
-                JS_ASSERT(0);
-            }
-
-            if (JS_TypeOfValue(cx, rval) != JSTYPE_FUNCTION) {
-                JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
-                                     JSMSG_BAD_GETTER_OR_SETTER,
-                                     (op == JSOP_GETTER)
-                                     ? js_getter_str
-                                     : js_setter_str);
-                ok = JS_FALSE;
-                goto out;
-            }
-
-            /*
-             * Getters and setters are just like watchpoints from an access
-             * control point of view.
-             */
-            ok = OBJ_CHECK_ACCESS(cx, obj, id, JSACC_WATCH, &rtmp, &attrs);
-            if (!ok)
-                goto out;
-
-            if (op == JSOP_GETTER) {
-                getter = (JSPropertyOp) JSVAL_TO_OBJECT(rval);
-                setter = NULL;
-                attrs = JSPROP_GETTER;
-            } else {
-                getter = NULL;
-                setter = (JSPropertyOp) JSVAL_TO_OBJECT(rval);
-                attrs = JSPROP_SETTER;
-            }
-            attrs |= JSPROP_ENUMERATE | JSPROP_SHARED;
-
-            /* Check for a readonly or permanent property of the same name. */
-            ok = js_CheckRedeclaration(cx, obj, id, attrs, &cond);
-            if (!ok)
-                goto out;
-
-            ok = OBJ_DEFINE_PROPERTY(cx, obj, id, JSVAL_VOID, getter, setter,
-                                     attrs, NULL);
-            if (!ok)
-                goto out;
-
-            sp += i;
-            if (cs->ndefs)
-                STORE_OPND(-1, rval);
-            break;
-#endif /* JS_HAS_GETTER_SETTER */
-
-#if JS_HAS_INITIALIZERS
-          case JSOP_NEWINIT:
-            argc = 0;
-            fp->sharpDepth++;
-            goto do_new;
-
-          case JSOP_ENDINIT:
-            if (--fp->sharpDepth == 0)
-                fp->sharpArray = NULL;
-
-            /* Re-set the newborn root to the top of this object tree. */
-            JS_ASSERT(sp - fp->spbase >= 1);
-            lval = FETCH_OPND(-1);
-            JS_ASSERT(JSVAL_IS_OBJECT(lval));
-            cx->newborn[GCX_OBJECT] = JSVAL_TO_GCTHING(lval);
-            break;
-
-          case JSOP_INITPROP:
-            /* Pop the property's value into rval. */
-            JS_ASSERT(sp - fp->spbase >= 2);
-            rval = FETCH_OPND(-1);
-
-            /* Get the immediate property name into id. */
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-            i = -1;
-            goto do_init;
-
-          case JSOP_INITELEM:
-            /* Pop the element's value into rval. */
-            JS_ASSERT(sp - fp->spbase >= 3);
-            rval = FETCH_OPND(-1);
-
-            /* Pop and conditionally atomize the element id. */
-            FETCH_ELEMENT_ID(-2, id);
-            i = -2;
-
-          do_init:
-            /* Find the object being initialized at top of stack. */
-            lval = FETCH_OPND(i-1);
-            JS_ASSERT(JSVAL_IS_OBJECT(lval));
-            obj = JSVAL_TO_OBJECT(lval);
-
-            /* Set the property named by obj[id] to rval. */
-            ok = OBJ_SET_PROPERTY(cx, obj, id, &rval);
-            if (!ok)
-                goto out;
-            sp += i;
-            break;
-
-#if JS_HAS_SHARP_VARS
-          case JSOP_DEFSHARP:
-            obj = fp->sharpArray;
-            if (!obj) {
-                obj = js_NewArrayObject(cx, 0, NULL);
-                if (!obj) {
-                    ok = JS_FALSE;
-                    goto out;
-                }
-                fp->sharpArray = obj;
-            }
-            i = (jsint) GET_ATOM_INDEX(pc);
-            id = (jsid) INT_TO_JSVAL(i);
-            rval = FETCH_OPND(-1);
-            if (JSVAL_IS_PRIMITIVE(rval)) {
-                char numBuf[12];
-                JS_snprintf(numBuf, sizeof numBuf, "%u", (unsigned) i);
-                JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
-                                     JSMSG_BAD_SHARP_DEF, numBuf);
-                ok = JS_FALSE;
-                goto out;
-            }
-            ok = OBJ_SET_PROPERTY(cx, obj, id, &rval);
-            if (!ok)
-                goto out;
-            break;
-
-          case JSOP_USESHARP:
-            i = (jsint) GET_ATOM_INDEX(pc);
-            id = (jsid) INT_TO_JSVAL(i);
-            obj = fp->sharpArray;
-            if (!obj) {
-                rval = JSVAL_VOID;
-            } else {
-                ok = OBJ_GET_PROPERTY(cx, obj, id, &rval);
-                if (!ok)
-                    goto out;
-            }
-            if (!JSVAL_IS_OBJECT(rval)) {
-                char numBuf[12];
-                JS_snprintf(numBuf, sizeof numBuf, "%u", (unsigned) i);
-                JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
-                                     JSMSG_BAD_SHARP_USE, numBuf);
-                ok = JS_FALSE;
-                goto out;
-            }
-            PUSH_OPND(rval);
-            break;
-#endif /* JS_HAS_SHARP_VARS */
-#endif /* JS_HAS_INITIALIZERS */
-
-#if JS_HAS_EXCEPTIONS
-          /* No-ops for ease of decompilation and jit'ing. */
-          case JSOP_TRY:
-          case JSOP_FINALLY:
-            break;
-
-          /* Reset the stack to the given depth. */
-          case JSOP_SETSP:
-            i = (jsint) GET_ATOM_INDEX(pc);
-            JS_ASSERT(i >= 0);
-            sp = fp->spbase + i;
-            break;
-
-          case JSOP_GOSUB:
-            i = PTRDIFF(pc, script->main, jsbytecode) + len;
-            len = GET_JUMP_OFFSET(pc);
-            PUSH(INT_TO_JSVAL(i));
-            break;
-
-          case JSOP_GOSUBX:
-            i = PTRDIFF(pc, script->main, jsbytecode) + len;
-            len = GET_JUMPX_OFFSET(pc);
-            PUSH(INT_TO_JSVAL(i));
-            break;
-
-          case JSOP_RETSUB:
-            rval = POP();
-            JS_ASSERT(JSVAL_IS_INT(rval));
-            i = JSVAL_TO_INT(rval);
-            pc = script->main + i;
-            len = 0;
-            break;
-
-          case JSOP_EXCEPTION:
-            PUSH(cx->exception);
-            break;
-
-          case JSOP_THROW:
-            cx->throwing = JS_TRUE;
-            cx->exception = POP_OPND();
-            ok = JS_FALSE;
-            /* let the code at out try to catch the exception. */
-            goto out;
-
-          case JSOP_INITCATCHVAR:
-            /* Pop the property's value into rval. */
-            JS_ASSERT(sp - fp->spbase >= 2);
-            rval = POP_OPND();
-
-            /* Get the immediate catch variable name into id. */
-            atom = GET_ATOM(cx, script, pc);
-            id   = (jsid)atom;
-
-            /* Find the object being initialized at top of stack. */
-            lval = FETCH_OPND(-1);
-            JS_ASSERT(JSVAL_IS_OBJECT(lval));
-            obj = JSVAL_TO_OBJECT(lval);
-
-            /* Define obj[id] to contain rval and to be permanent. */
-            ok = OBJ_DEFINE_PROPERTY(cx, obj, id, rval, NULL, NULL,
-                                     JSPROP_PERMANENT, NULL);
-            if (!ok)
-                goto out;
-            break;
-#endif /* JS_HAS_EXCEPTIONS */
-
-#if JS_HAS_INSTANCEOF
-          case JSOP_INSTANCEOF:
-            rval = FETCH_OPND(-1);
-            if (JSVAL_IS_PRIMITIVE(rval)) {
-                SAVE_SP(fp);
-                str = js_DecompileValueGenerator(cx, -1, rval, NULL);
-                if (str) {
-                    JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
-                                         JSMSG_BAD_INSTANCEOF_RHS,
-                                         JS_GetStringBytes(str));
-                }
-                ok = JS_FALSE;
-                goto out;
-            }
-            obj = JSVAL_TO_OBJECT(rval);
-            lval = FETCH_OPND(-2);
-            cond = JS_FALSE;
-            if (obj->map->ops->hasInstance) {
-                SAVE_SP(fp);
-                ok = obj->map->ops->hasInstance(cx, obj, lval, &cond);
-                if (!ok)
-                    goto out;
-            }
-            sp--;
-            STORE_OPND(-1, BOOLEAN_TO_JSVAL(cond));
-            break;
-#endif /* JS_HAS_INSTANCEOF */
-
-#if JS_HAS_DEBUGGER_KEYWORD
-          case JSOP_DEBUGGER:
-          {
-            JSTrapHandler handler = rt->debuggerHandler;
-            if (handler) {
-                SAVE_SP(fp);
-                switch (handler(cx, script, pc, &rval,
-                                rt->debuggerHandlerData)) {
-                  case JSTRAP_ERROR:
-                    ok = JS_FALSE;
-                    goto out;
-                  case JSTRAP_CONTINUE:
-                    break;
-                  case JSTRAP_RETURN:
-                    fp->rval = rval;
-                    goto out;
-#if JS_HAS_EXCEPTIONS
-                  case JSTRAP_THROW:
-                    cx->throwing = JS_TRUE;
-                    cx->exception = rval;
-                    ok = JS_FALSE;
-                    goto out;
-#endif /* JS_HAS_EXCEPTIONS */
-                  default:;
-                }
-                LOAD_INTERRUPT_HANDLER(rt);
-            }
-            break;
-          }
-#endif /* JS_HAS_DEBUGGER_KEYWORD */
-
-          default: {
-            char numBuf[12];
-            JS_snprintf(numBuf, sizeof numBuf, "%d", op);
-            JS_ReportErrorNumber(cx, js_GetErrorMessage, NULL,
-                                 JSMSG_BAD_BYTECODE, numBuf);
-            ok = JS_FALSE;
-            goto out;
-          }
-        }
-
-    advance_pc:
-        pc += len;
-
-#ifdef DEBUG
-        if (tracefp) {
-            intN ndefs, n;
-            jsval *siter;
-
-            ndefs = cs->ndefs;
-            if (ndefs) {
-                SAVE_SP(fp);
-                for (n = -ndefs; n < 0; n++) {
-                    str = js_DecompileValueGenerator(cx, n, sp[n], NULL);
-                    if (str) {
-                        fprintf(tracefp, "%s %s",
-                                (n == -ndefs) ? "  output:" : ",",
-                                JS_GetStringBytes(str));
-                    }
-                }
-                fprintf(tracefp, " @ %d\n", sp - fp->spbase);
-            }
-            fprintf(tracefp, "  stack: ");
-            for (siter = fp->spbase; siter < sp; siter++) {
-                str = js_ValueToSource(cx, *siter);
-                fprintf(tracefp, "%s ",
-                        str ? JS_GetStringBytes(str) : "<null>");
-            }
-            fputc('\n', tracefp);
-        }
-#endif
-    }
-out:
-
-#if JS_HAS_EXCEPTIONS
-    /*
-     * Has an exception been raised?
-     */
-    if (!ok && cx->throwing) {
-        /*
-         * Call debugger throw hook if set (XXX thread safety?).
-         */
-        JSTrapHandler handler = rt->throwHook;
-        if (handler) {
-            SAVE_SP(fp);
-            switch (handler(cx, script, pc, &rval, rt->throwHookData)) {
-              case JSTRAP_ERROR:
-                cx->throwing = JS_FALSE;
-                goto no_catch;
-              case JSTRAP_RETURN:
-                ok = JS_TRUE;
-                cx->throwing = JS_FALSE;
-                fp->rval = rval;
-                goto no_catch;
-              case JSTRAP_THROW:
-                cx->exception = rval;
-              case JSTRAP_CONTINUE:
-              default:;
-            }
-            LOAD_INTERRUPT_HANDLER(rt);
-        }
-
-        /*
-         * Look for a try block within this frame that can catch the exception.
-         */
-        SCRIPT_FIND_CATCH_START(script, pc, pc);
-        if (pc) {
-            len = 0;
-            cx->throwing = JS_FALSE;    /* caught */
-            ok = JS_TRUE;
-            goto advance_pc;
-        }
-    }
-no_catch:
-#endif
-
-    /*
-     * Check whether control fell off the end of a lightweight function, or an
-     * exception thrown under such a function was not caught by it.  If so, go
-     * to the inline code under JSOP_RETURN.
-     */
-    if (inlineCallCount)
-        goto inline_return;
-
-    /*
-     * Reset sp before freeing stack slots, because our caller may GC soon.
-     * Clear spbase to indicate that we've popped the 2 * depth operand slots.
-     * Restore the previous frame's execution state.
-     */
-    fp->sp = fp->spbase;
-    fp->spbase = NULL;
-    js_FreeRawStack(cx, mark);
-    if (cx->version == currentVersion && currentVersion != originalVersion)
-        JS_SetVersion(cx, originalVersion);
-    cx->interpLevel--;
-    return ok;
-
-atom_not_defined:
-    {
-        const char *printable = js_AtomToPrintableString(cx, atom);
-        if (printable)
-            js_ReportIsNotDefined(cx, printable);
-        ok = JS_FALSE;
-        goto out;
-    }
-}