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gecko/js/jsd/jsd_xpc.cpp
Igor Bukanov d3018bc6d8 Bug 737364 - part 2 - replace JSContext with JSRuntime in the GC-related API 
This part replaces the JSContext *cx argument in most GC-related API
with JSRuntime *rt. When possible, the patch removes the code to obtain
a temporary cx just to run the GC.

The patch also removes JS_DestroyContextMaybeGC. That function is not
used in FF code base and its implementation is broken. It requires that
the context has an entered compartment when it is destroyed, which in
turns implies a missing leave compartment call.
2012-03-28 12:13:30 +02:00

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/* -*- Mode: C++; tab-width: 4; 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.org code.
*
* 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):
* Robert Ginda, <rginda@netscape.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either 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 ***** */
#include "jsdbgapi.h"
#include "jslock.h"
#include "jsd_xpc.h"
#include "nsIXPConnect.h"
#include "mozilla/ModuleUtils.h"
#include "nsIServiceManager.h"
#include "nsIScriptGlobalObject.h"
#include "nsIObserver.h"
#include "nsIObserverService.h"
#include "nsICategoryManager.h"
#include "nsIJSRuntimeService.h"
#include "nsIThreadInternal.h"
#include "nsThreadUtils.h"
#include "nsMemory.h"
#include "jsdebug.h"
#include "nsReadableUtils.h"
#include "nsCRT.h"
/* XXX DOM dependency */
#include "nsIScriptContext.h"
#include "nsIJSContextStack.h"
/*
* defining CAUTIOUS_SCRIPTHOOK makes jsds disable GC while calling out to the
* script hook. This was a hack to avoid some js engine problems that should
* be fixed now (see Mozilla bug 77636).
*/
#undef CAUTIOUS_SCRIPTHOOK
#ifdef DEBUG_verbose
# define DEBUG_COUNT(name, count) \
{ if ((count % 10) == 0) printf (name ": %i\n", count); }
# define DEBUG_CREATE(name, count) {count++; DEBUG_COUNT ("+++++ "name,count)}
# define DEBUG_DESTROY(name, count) {count--; DEBUG_COUNT ("----- "name,count)}
#else
# define DEBUG_CREATE(name, count)
# define DEBUG_DESTROY(name, count)
#endif
#define ASSERT_VALID_CONTEXT { if (!mCx) return NS_ERROR_NOT_AVAILABLE; }
#define ASSERT_VALID_EPHEMERAL { if (!mValid) return NS_ERROR_NOT_AVAILABLE; }
#define JSDSERVICE_CID \
{ /* f1299dc2-1dd1-11b2-a347-ee6b7660e048 */ \
0xf1299dc2, \
0x1dd1, \
0x11b2, \
{0xa3, 0x47, 0xee, 0x6b, 0x76, 0x60, 0xe0, 0x48} \
}
#define JSDASO_CID \
{ /* 2fd6b7f6-eb8c-4f32-ad26-113f2c02d0fe */ \
0x2fd6b7f6, \
0xeb8c, \
0x4f32, \
{0xad, 0x26, 0x11, 0x3f, 0x2c, 0x02, 0xd0, 0xfe} \
}
#define JSDS_MAJOR_VERSION 1
#define JSDS_MINOR_VERSION 2
#define NS_CATMAN_CTRID "@mozilla.org/categorymanager;1"
#define NS_JSRT_CTRID "@mozilla.org/js/xpc/RuntimeService;1"
#define AUTOREG_CATEGORY "xpcom-autoregistration"
#define APPSTART_CATEGORY "app-startup"
#define JSD_AUTOREG_ENTRY "JSDebugger Startup Observer"
#define JSD_STARTUP_ENTRY "JSDebugger Startup Observer"
static void
jsds_GCSliceCallbackProc (JSRuntime *rt, js::GCProgress progress, const js::GCDescription &desc);
/*******************************************************************************
* global vars
******************************************************************************/
const char implementationString[] = "Mozilla JavaScript Debugger Service";
const char jsdServiceCtrID[] = "@mozilla.org/js/jsd/debugger-service;1";
const char jsdARObserverCtrID[] = "@mozilla.org/js/jsd/app-start-observer;2";
const char jsdASObserverCtrID[] = "service,@mozilla.org/js/jsd/app-start-observer;2";
#ifdef DEBUG_verbose
PRUint32 gScriptCount = 0;
PRUint32 gValueCount = 0;
PRUint32 gPropertyCount = 0;
PRUint32 gContextCount = 0;
PRUint32 gFrameCount = 0;
#endif
static jsdService *gJsds = 0;
static js::GCSliceCallback gPrevGCSliceCallback = jsds_GCSliceCallbackProc;
static bool gGCRunning = false;
static struct DeadScript {
PRCList links;
JSDContext *jsdc;
jsdIScript *script;
} *gDeadScripts = nsnull;
enum PatternType {
ptIgnore = 0U,
ptStartsWith = 1U,
ptEndsWith = 2U,
ptContains = 3U,
ptEquals = 4U
};
static struct FilterRecord {
PRCList links;
jsdIFilter *filterObject;
void *glob;
nsCString urlPattern;
PatternType patternType;
PRUint32 startLine;
PRUint32 endLine;
} *gFilters = nsnull;
static struct LiveEphemeral *gLiveValues = nsnull;
static struct LiveEphemeral *gLiveProperties = nsnull;
static struct LiveEphemeral *gLiveContexts = nsnull;
static struct LiveEphemeral *gLiveStackFrames = nsnull;
/*******************************************************************************
* utility functions for ephemeral lists
*******************************************************************************/
already_AddRefed<jsdIEphemeral>
jsds_FindEphemeral (LiveEphemeral **listHead, void *key)
{
if (!*listHead)
return nsnull;
LiveEphemeral *lv_record =
reinterpret_cast<LiveEphemeral *>
(PR_NEXT_LINK(&(*listHead)->links));
do
{
if (lv_record->key == key)
{
NS_IF_ADDREF(lv_record->value);
return lv_record->value;
}
lv_record = reinterpret_cast<LiveEphemeral *>
(PR_NEXT_LINK(&lv_record->links));
}
while (lv_record != *listHead);
return nsnull;
}
void
jsds_InvalidateAllEphemerals (LiveEphemeral **listHead)
{
LiveEphemeral *lv_record =
reinterpret_cast<LiveEphemeral *>
(PR_NEXT_LINK(&(*listHead)->links));
do
{
LiveEphemeral *next =
reinterpret_cast<LiveEphemeral *>
(PR_NEXT_LINK(&lv_record->links));
lv_record->value->Invalidate();
lv_record = next;
}
while (*listHead);
}
void
jsds_InsertEphemeral (LiveEphemeral **listHead, LiveEphemeral *item)
{
if (*listHead) {
/* if the list exists, add to it */
PR_APPEND_LINK(&item->links, &(*listHead)->links);
} else {
/* otherwise create the list */
PR_INIT_CLIST(&item->links);
*listHead = item;
}
}
void
jsds_RemoveEphemeral (LiveEphemeral **listHead, LiveEphemeral *item)
{
LiveEphemeral *next = reinterpret_cast<LiveEphemeral *>
(PR_NEXT_LINK(&item->links));
if (next == item)
{
/* if the current item is also the next item, we're the only element,
* null out the list head */
NS_ASSERTION (*listHead == item,
"How could we not be the head of a one item list?");
*listHead = nsnull;
}
else if (item == *listHead)
{
/* otherwise, if we're currently the list head, change it */
*listHead = next;
}
PR_REMOVE_AND_INIT_LINK(&item->links);
}
/*******************************************************************************
* utility functions for filters
*******************************************************************************/
void
jsds_FreeFilter (FilterRecord *rec)
{
NS_IF_RELEASE (rec->filterObject);
PR_Free (rec);
}
/* copies appropriate |filter| attributes into |rec|.
* False return indicates failure, the contents of |rec| will not be changed.
*/
bool
jsds_SyncFilter (FilterRecord *rec, jsdIFilter *filter)
{
NS_ASSERTION (rec, "jsds_SyncFilter without rec");
NS_ASSERTION (filter, "jsds_SyncFilter without filter");
JSObject *glob_proper = nsnull;
nsCOMPtr<nsISupports> glob;
nsresult rv = filter->GetGlobalObject(getter_AddRefs(glob));
if (NS_FAILED(rv))
return false;
if (glob) {
nsCOMPtr<nsIScriptGlobalObject> nsiglob = do_QueryInterface(glob);
if (nsiglob)
glob_proper = nsiglob->GetGlobalJSObject();
}
PRUint32 startLine;
rv = filter->GetStartLine(&startLine);
if (NS_FAILED(rv))
return false;
PRUint32 endLine;
rv = filter->GetStartLine(&endLine);
if (NS_FAILED(rv))
return false;
nsCAutoString urlPattern;
rv = filter->GetUrlPattern (urlPattern);
if (NS_FAILED(rv))
return false;
PRUint32 len = urlPattern.Length();
if (len) {
if (urlPattern[0] == '*') {
/* pattern starts with a *, shift all chars once to the left,
* including the trailing null. */
urlPattern = Substring(urlPattern, 1, len);
if (urlPattern[len - 2] == '*') {
/* pattern is in the format "*foo*", overwrite the final * with
* a null. */
urlPattern.Truncate(len - 2);
rec->patternType = ptContains;
} else {
/* pattern is in the format "*foo", just make a note of the
* new length. */
rec->patternType = ptEndsWith;
}
} else if (urlPattern[len - 1] == '*') {
/* pattern is in the format "foo*", overwrite the final * with a
* null. */
urlPattern.Truncate(len - 1);
rec->patternType = ptStartsWith;
} else {
/* pattern is in the format "foo". */
rec->patternType = ptEquals;
}
} else {
rec->patternType = ptIgnore;
}
/* we got everything we need without failing, now copy it into rec. */
if (rec->filterObject != filter) {
NS_IF_RELEASE(rec->filterObject);
NS_ADDREF(filter);
rec->filterObject = filter;
}
rec->glob = glob_proper;
rec->startLine = startLine;
rec->endLine = endLine;
rec->urlPattern = urlPattern;
return true;
}
FilterRecord *
jsds_FindFilter (jsdIFilter *filter)
{
if (!gFilters)
return nsnull;
FilterRecord *current = gFilters;
do {
if (current->filterObject == filter)
return current;
current = reinterpret_cast<FilterRecord *>
(PR_NEXT_LINK(&current->links));
} while (current != gFilters);
return nsnull;
}
/* returns true if the hook should be executed. */
bool
jsds_FilterHook (JSDContext *jsdc, JSDThreadState *state)
{
JSContext *cx = JSD_GetJSContext (jsdc, state);
void *glob = static_cast<void *>(JS_GetGlobalObject (cx));
if (!glob) {
NS_WARNING("No global in threadstate");
return false;
}
JSDStackFrameInfo *frame = JSD_GetStackFrame (jsdc, state);
if (!frame) {
NS_WARNING("No frame in threadstate");
return false;
}
JSDScript *script = JSD_GetScriptForStackFrame (jsdc, state, frame);
if (!script)
return true;
uintptr_t pc = JSD_GetPCForStackFrame (jsdc, state, frame);
nsCString url(JSD_GetScriptFilename (jsdc, script));
if (url.IsEmpty()) {
NS_WARNING ("Script with no filename");
return false;
}
if (!gFilters)
return true;
PRUint32 currentLine = JSD_GetClosestLine (jsdc, script, pc);
PRUint32 len = 0;
FilterRecord *currentFilter = gFilters;
do {
PRUint32 flags = 0;
#ifdef DEBUG
nsresult rv =
#endif
currentFilter->filterObject->GetFlags(&flags);
NS_ASSERTION(NS_SUCCEEDED(rv), "Error getting flags for filter");
if (flags & jsdIFilter::FLAG_ENABLED) {
/* if there is no glob, or the globs match */
if ((!currentFilter->glob || currentFilter->glob == glob) &&
/* and there is no start line, or the start line is before
* or equal to the current */
(!currentFilter->startLine ||
currentFilter->startLine <= currentLine) &&
/* and there is no end line, or the end line is after
* or equal to the current */
(!currentFilter->endLine ||
currentFilter->endLine >= currentLine)) {
/* then we're going to have to compare the url. */
if (currentFilter->patternType == ptIgnore)
return !!(flags & jsdIFilter::FLAG_PASS);
if (!len)
len = url.Length();
nsCString urlPattern = currentFilter->urlPattern;
PRUint32 patternLength = urlPattern.Length();
if (len >= patternLength) {
switch (currentFilter->patternType) {
case ptEquals:
if (urlPattern.Equals(url))
return !!(flags & jsdIFilter::FLAG_PASS);
break;
case ptStartsWith:
if (urlPattern.Equals(Substring(url, 0, patternLength)))
return !!(flags & jsdIFilter::FLAG_PASS);
break;
case ptEndsWith:
if (urlPattern.Equals(Substring(url, len - patternLength)))
return !!(flags & jsdIFilter::FLAG_PASS);
break;
case ptContains:
{
nsACString::const_iterator start, end;
url.BeginReading(start);
url.EndReading(end);
if (FindInReadable(currentFilter->urlPattern, start, end))
return !!(flags & jsdIFilter::FLAG_PASS);
}
break;
default:
NS_ERROR("Invalid pattern type");
}
}
}
}
currentFilter = reinterpret_cast<FilterRecord *>
(PR_NEXT_LINK(&currentFilter->links));
} while (currentFilter != gFilters);
return true;
}
/*******************************************************************************
* c callbacks
*******************************************************************************/
static void
jsds_NotifyPendingDeadScripts (JSRuntime *rt)
{
jsdService *jsds = gJsds;
nsCOMPtr<jsdIScriptHook> hook;
if (jsds) {
NS_ADDREF(jsds);
jsds->GetScriptHook (getter_AddRefs(hook));
jsds->DoPause(nsnull, true);
}
DeadScript *deadScripts = gDeadScripts;
gDeadScripts = nsnull;
while (deadScripts) {
DeadScript *ds = deadScripts;
/* get next deleted script */
deadScripts = reinterpret_cast<DeadScript *>
(PR_NEXT_LINK(&ds->links));
if (deadScripts == ds)
deadScripts = nsnull;
if (hook)
{
/* tell the user this script has been destroyed */
#ifdef CAUTIOUS_SCRIPTHOOK
JS_UNKEEP_ATOMS(rt);
#endif
hook->OnScriptDestroyed (ds->script);
#ifdef CAUTIOUS_SCRIPTHOOK
JS_KEEP_ATOMS(rt);
#endif
}
/* take it out of the circular list */
PR_REMOVE_LINK(&ds->links);
/* addref came from the FromPtr call in jsds_ScriptHookProc */
NS_RELEASE(ds->script);
/* free the struct! */
PR_Free(ds);
}
if (jsds) {
jsds->DoUnPause(nsnull, true);
NS_RELEASE(jsds);
}
}
static void
jsds_GCSliceCallbackProc (JSRuntime *rt, js::GCProgress progress, const js::GCDescription &desc)
{
if (progress == js::GC_CYCLE_END || progress == js::GC_SLICE_END) {
NS_ASSERTION(gGCRunning, "GC slice callback was missed");
while (gDeadScripts)
jsds_NotifyPendingDeadScripts (rt);
gGCRunning = false;
} else {
NS_ASSERTION(!gGCRunning, "should not re-enter GC");
gGCRunning = true;
}
if (gPrevGCSliceCallback)
(*gPrevGCSliceCallback)(rt, progress, desc);
}
static unsigned
jsds_ErrorHookProc (JSDContext *jsdc, JSContext *cx, const char *message,
JSErrorReport *report, void *callerdata)
{
static bool running = false;
nsCOMPtr<jsdIErrorHook> hook;
gJsds->GetErrorHook(getter_AddRefs(hook));
if (!hook)
return JSD_ERROR_REPORTER_PASS_ALONG;
if (running)
return JSD_ERROR_REPORTER_PASS_ALONG;
running = true;
nsCOMPtr<jsdIValue> val;
if (JS_IsExceptionPending(cx)) {
jsval jv;
JS_GetPendingException(cx, &jv);
JSDValue *jsdv = JSD_NewValue (jsdc, jv);
val = getter_AddRefs(jsdValue::FromPtr(jsdc, jsdv));
}
nsCAutoString fileName;
PRUint32 line;
PRUint32 pos;
PRUint32 flags;
PRUint32 errnum;
bool rval;
if (report) {
fileName.Assign(report->filename);
line = report->lineno;
pos = report->tokenptr - report->linebuf;
flags = report->flags;
errnum = report->errorNumber;
}
else
{
line = 0;
pos = 0;
flags = 0;
errnum = 0;
}
gJsds->DoPause(nsnull, true);
hook->OnError (nsDependentCString(message), fileName, line, pos, flags, errnum, val, &rval);
gJsds->DoUnPause(nsnull, true);
running = false;
if (!rval)
return JSD_ERROR_REPORTER_DEBUG;
return JSD_ERROR_REPORTER_PASS_ALONG;
}
static JSBool
jsds_CallHookProc (JSDContext* jsdc, JSDThreadState* jsdthreadstate,
unsigned type, void* callerdata)
{
nsCOMPtr<jsdICallHook> hook;
switch (type)
{
case JSD_HOOK_TOPLEVEL_START:
case JSD_HOOK_TOPLEVEL_END:
gJsds->GetTopLevelHook(getter_AddRefs(hook));
break;
case JSD_HOOK_FUNCTION_CALL:
case JSD_HOOK_FUNCTION_RETURN:
gJsds->GetFunctionHook(getter_AddRefs(hook));
break;
default:
NS_ASSERTION (0, "Unknown hook type.");
}
if (!hook)
return JS_TRUE;
if (!jsds_FilterHook (jsdc, jsdthreadstate))
return JS_FALSE;
JSDStackFrameInfo *native_frame = JSD_GetStackFrame (jsdc, jsdthreadstate);
nsCOMPtr<jsdIStackFrame> frame =
getter_AddRefs(jsdStackFrame::FromPtr(jsdc, jsdthreadstate,
native_frame));
gJsds->DoPause(nsnull, true);
hook->OnCall(frame, type);
gJsds->DoUnPause(nsnull, true);
jsdStackFrame::InvalidateAll();
return JS_TRUE;
}
static PRUint32
jsds_ExecutionHookProc (JSDContext* jsdc, JSDThreadState* jsdthreadstate,
unsigned type, void* callerdata, jsval* rval)
{
nsCOMPtr<jsdIExecutionHook> hook(0);
PRUint32 hook_rv = JSD_HOOK_RETURN_CONTINUE;
nsCOMPtr<jsdIValue> js_rv;
switch (type)
{
case JSD_HOOK_INTERRUPTED:
gJsds->GetInterruptHook(getter_AddRefs(hook));
break;
case JSD_HOOK_DEBUG_REQUESTED:
gJsds->GetDebugHook(getter_AddRefs(hook));
break;
case JSD_HOOK_DEBUGGER_KEYWORD:
gJsds->GetDebuggerHook(getter_AddRefs(hook));
break;
case JSD_HOOK_BREAKPOINT:
{
/* we can't pause breakpoints the way we pause the other
* execution hooks (at least, not easily.) Instead we bail
* here if the service is paused. */
PRUint32 level;
gJsds->GetPauseDepth(&level);
if (!level)
gJsds->GetBreakpointHook(getter_AddRefs(hook));
}
break;
case JSD_HOOK_THROW:
{
hook_rv = JSD_HOOK_RETURN_CONTINUE_THROW;
gJsds->GetThrowHook(getter_AddRefs(hook));
if (hook) {
JSDValue *jsdv = JSD_GetException (jsdc, jsdthreadstate);
js_rv = getter_AddRefs(jsdValue::FromPtr (jsdc, jsdv));
}
break;
}
default:
NS_ASSERTION (0, "Unknown hook type.");
}
if (!hook)
return hook_rv;
if (!jsds_FilterHook (jsdc, jsdthreadstate))
return JSD_HOOK_RETURN_CONTINUE;
JSDStackFrameInfo *native_frame = JSD_GetStackFrame (jsdc, jsdthreadstate);
nsCOMPtr<jsdIStackFrame> frame =
getter_AddRefs(jsdStackFrame::FromPtr(jsdc, jsdthreadstate,
native_frame));
gJsds->DoPause(nsnull, true);
jsdIValue *inout_rv = js_rv;
NS_IF_ADDREF(inout_rv);
hook->OnExecute (frame, type, &inout_rv, &hook_rv);
js_rv = inout_rv;
NS_IF_RELEASE(inout_rv);
gJsds->DoUnPause(nsnull, true);
jsdStackFrame::InvalidateAll();
if (hook_rv == JSD_HOOK_RETURN_RET_WITH_VAL ||
hook_rv == JSD_HOOK_RETURN_THROW_WITH_VAL) {
*rval = JSVAL_VOID;
if (js_rv) {
JSDValue *jsdv;
if (NS_SUCCEEDED(js_rv->GetJSDValue (&jsdv)))
*rval = JSD_GetValueWrappedJSVal(jsdc, jsdv);
}
}
return hook_rv;
}
static void
jsds_ScriptHookProc (JSDContext* jsdc, JSDScript* jsdscript, JSBool creating,
void* callerdata)
{
#ifdef CAUTIOUS_SCRIPTHOOK
JSContext *cx = JSD_GetDefaultJSContext(jsdc);
JSRuntime *rt = JS_GetRuntime(cx);
#endif
if (creating) {
nsCOMPtr<jsdIScriptHook> hook;
gJsds->GetScriptHook(getter_AddRefs(hook));
/* a script is being created */
if (!hook) {
/* nobody cares, just exit */
return;
}
nsCOMPtr<jsdIScript> script =
getter_AddRefs(jsdScript::FromPtr(jsdc, jsdscript));
#ifdef CAUTIOUS_SCRIPTHOOK
JS_UNKEEP_ATOMS(rt);
#endif
gJsds->DoPause(nsnull, true);
hook->OnScriptCreated (script);
gJsds->DoUnPause(nsnull, true);
#ifdef CAUTIOUS_SCRIPTHOOK
JS_KEEP_ATOMS(rt);
#endif
} else {
/* a script is being destroyed. even if there is no registered hook
* we'll still need to invalidate the jsdIScript record, in order
* to remove the reference held in the JSDScript private data. */
nsCOMPtr<jsdIScript> jsdis =
static_cast<jsdIScript *>(JSD_GetScriptPrivate(jsdscript));
if (!jsdis)
return;
jsdis->Invalidate();
if (!gGCRunning) {
nsCOMPtr<jsdIScriptHook> hook;
gJsds->GetScriptHook(getter_AddRefs(hook));
if (!hook)
return;
/* if GC *isn't* running, we can tell the user about the script
* delete now. */
#ifdef CAUTIOUS_SCRIPTHOOK
JS_UNKEEP_ATOMS(rt);
#endif
gJsds->DoPause(nsnull, true);
hook->OnScriptDestroyed (jsdis);
gJsds->DoUnPause(nsnull, true);
#ifdef CAUTIOUS_SCRIPTHOOK
JS_KEEP_ATOMS(rt);
#endif
} else {
/* if a GC *is* running, we've got to wait until it's done before
* we can execute any JS, so we queue the notification in a PRCList
* until GC tells us it's done. See jsds_GCCallbackProc(). */
DeadScript *ds = PR_NEW(DeadScript);
if (!ds)
return; /* NS_ERROR_OUT_OF_MEMORY */
ds->jsdc = jsdc;
ds->script = jsdis;
NS_ADDREF(ds->script);
if (gDeadScripts)
/* if the queue exists, add to it */
PR_APPEND_LINK(&ds->links, &gDeadScripts->links);
else {
/* otherwise create the queue */
PR_INIT_CLIST(&ds->links);
gDeadScripts = ds;
}
}
}
}
/*******************************************************************************
* reflected jsd data structures
*******************************************************************************/
/* Contexts */
/*
NS_IMPL_THREADSAFE_ISUPPORTS2(jsdContext, jsdIContext, jsdIEphemeral);
NS_IMETHODIMP
jsdContext::GetJSDContext(JSDContext **_rval)
{
*_rval = mCx;
return NS_OK;
}
*/
/* Objects */
NS_IMPL_THREADSAFE_ISUPPORTS1(jsdObject, jsdIObject)
NS_IMETHODIMP
jsdObject::GetJSDContext(JSDContext **_rval)
{
*_rval = mCx;
return NS_OK;
}
NS_IMETHODIMP
jsdObject::GetJSDObject(JSDObject **_rval)
{
*_rval = mObject;
return NS_OK;
}
NS_IMETHODIMP
jsdObject::GetCreatorURL(nsACString &_rval)
{
_rval.Assign(JSD_GetObjectNewURL(mCx, mObject));
return NS_OK;
}
NS_IMETHODIMP
jsdObject::GetCreatorLine(PRUint32 *_rval)
{
*_rval = JSD_GetObjectNewLineNumber(mCx, mObject);
return NS_OK;
}
NS_IMETHODIMP
jsdObject::GetConstructorURL(nsACString &_rval)
{
_rval.Assign(JSD_GetObjectConstructorURL(mCx, mObject));
return NS_OK;
}
NS_IMETHODIMP
jsdObject::GetConstructorLine(PRUint32 *_rval)
{
*_rval = JSD_GetObjectConstructorLineNumber(mCx, mObject);
return NS_OK;
}
NS_IMETHODIMP
jsdObject::GetValue(jsdIValue **_rval)
{
JSDValue *jsdv = JSD_GetValueForObject (mCx, mObject);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
/* Properties */
NS_IMPL_THREADSAFE_ISUPPORTS2(jsdProperty, jsdIProperty, jsdIEphemeral)
jsdProperty::jsdProperty (JSDContext *aCx, JSDProperty *aProperty) :
mCx(aCx), mProperty(aProperty)
{
DEBUG_CREATE ("jsdProperty", gPropertyCount);
mValid = (aCx && aProperty);
mLiveListEntry.value = this;
jsds_InsertEphemeral (&gLiveProperties, &mLiveListEntry);
}
jsdProperty::~jsdProperty ()
{
DEBUG_DESTROY ("jsdProperty", gPropertyCount);
if (mValid)
Invalidate();
}
NS_IMETHODIMP
jsdProperty::Invalidate()
{
ASSERT_VALID_EPHEMERAL;
mValid = false;
jsds_RemoveEphemeral (&gLiveProperties, &mLiveListEntry);
JSD_DropProperty (mCx, mProperty);
return NS_OK;
}
void
jsdProperty::InvalidateAll()
{
if (gLiveProperties)
jsds_InvalidateAllEphemerals (&gLiveProperties);
}
NS_IMETHODIMP
jsdProperty::GetJSDContext(JSDContext **_rval)
{
*_rval = mCx;
return NS_OK;
}
NS_IMETHODIMP
jsdProperty::GetJSDProperty(JSDProperty **_rval)
{
*_rval = mProperty;
return NS_OK;
}
NS_IMETHODIMP
jsdProperty::GetIsValid(bool *_rval)
{
*_rval = mValid;
return NS_OK;
}
NS_IMETHODIMP
jsdProperty::GetAlias(jsdIValue **_rval)
{
JSDValue *jsdv = JSD_GetPropertyValue (mCx, mProperty);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdProperty::GetFlags(PRUint32 *_rval)
{
*_rval = JSD_GetPropertyFlags (mCx, mProperty);
return NS_OK;
}
NS_IMETHODIMP
jsdProperty::GetName(jsdIValue **_rval)
{
JSDValue *jsdv = JSD_GetPropertyName (mCx, mProperty);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdProperty::GetValue(jsdIValue **_rval)
{
JSDValue *jsdv = JSD_GetPropertyValue (mCx, mProperty);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdProperty::GetVarArgSlot(PRUint32 *_rval)
{
*_rval = JSD_GetPropertyVarArgSlot (mCx, mProperty);
return NS_OK;
}
/* Scripts */
NS_IMPL_THREADSAFE_ISUPPORTS2(jsdScript, jsdIScript, jsdIEphemeral)
static NS_IMETHODIMP
AssignToJSString(nsACString *x, JSString *str)
{
if (!str) {
x->SetLength(0);
return NS_OK;
}
size_t length = JS_GetStringEncodingLength(NULL, str);
if (length == size_t(-1))
return NS_ERROR_FAILURE;
x->SetLength(PRUint32(length));
if (x->Length() != PRUint32(length))
return NS_ERROR_OUT_OF_MEMORY;
JS_EncodeStringToBuffer(str, x->BeginWriting(), length);
return NS_OK;
}
jsdScript::jsdScript (JSDContext *aCx, JSDScript *aScript) : mValid(false),
mTag(0),
mCx(aCx),
mScript(aScript),
mFileName(0),
mFunctionName(0),
mBaseLineNumber(0),
mLineExtent(0),
mPPLineMap(0),
mFirstPC(0)
{
DEBUG_CREATE ("jsdScript", gScriptCount);
if (mScript) {
/* copy the script's information now, so we have it later, when it
* gets destroyed. */
JSD_LockScriptSubsystem(mCx);
mFileName = new nsCString(JSD_GetScriptFilename(mCx, mScript));
mFunctionName = new nsCString();
if (mFunctionName) {
JSString *str = JSD_GetScriptFunctionId(mCx, mScript);
if (str)
AssignToJSString(mFunctionName, str);
}
mBaseLineNumber = JSD_GetScriptBaseLineNumber(mCx, mScript);
mLineExtent = JSD_GetScriptLineExtent(mCx, mScript);
mFirstPC = JSD_GetClosestPC(mCx, mScript, 0);
JSD_UnlockScriptSubsystem(mCx);
mValid = true;
}
}
jsdScript::~jsdScript ()
{
DEBUG_DESTROY ("jsdScript", gScriptCount);
delete mFileName;
delete mFunctionName;
if (mPPLineMap)
PR_Free(mPPLineMap);
/* Invalidate() needs to be called to release an owning reference to
* ourselves, so if we got here without being invalidated, something
* has gone wrong with our ref count. */
NS_ASSERTION (!mValid, "Script destroyed without being invalidated.");
}
/*
* This method populates a line <-> pc map for a pretty printed version of this
* script. It does this by decompiling, and then recompiling the script. The
* resulting script is scanned for the line map, and then left as GC fodder.
*/
PCMapEntry *
jsdScript::CreatePPLineMap()
{
JSContext *cx = JSD_GetDefaultJSContext (mCx);
JSAutoRequest ar(cx);
JSObject *obj = JS_NewObject(cx, NULL, NULL, NULL);
JSFunction *fun = JSD_GetJSFunction (mCx, mScript);
JSScript *script; /* In JSD compartment */
PRUint32 baseLine;
JSString *jsstr;
size_t length;
const jschar *chars;
if (fun) {
unsigned nargs;
{
JSAutoEnterCompartment ac;
if (!ac.enter(cx, JS_GetFunctionObject(fun)))
return nsnull;
nargs = JS_GetFunctionArgumentCount(cx, fun);
if (nargs > 12)
return nsnull;
jsstr = JS_DecompileFunctionBody (cx, fun, 4);
if (!jsstr)
return nsnull;
if (!(chars = JS_GetStringCharsAndLength(cx, jsstr, &length)))
return nsnull;
}
JS::Anchor<JSString *> kungFuDeathGrip(jsstr);
const char *argnames[] = {"arg1", "arg2", "arg3", "arg4",
"arg5", "arg6", "arg7", "arg8",
"arg9", "arg10", "arg11", "arg12" };
fun = JS_CompileUCFunction (cx, obj, "ppfun", nargs, argnames, chars,
length, "x-jsd:ppbuffer?type=function", 3);
if (!fun || !(script = JS_GetFunctionScript(cx, fun)))
return nsnull;
baseLine = 3;
} else {
script = JSD_GetJSScript(mCx, mScript);
JSString *jsstr;
{
JS::AutoEnterScriptCompartment ac;
if (!ac.enter(cx, script))
return nsnull;
jsstr = JS_DecompileScript (cx, script, "ppscript", 4);
if (!jsstr)
return nsnull;
if (!(chars = JS_GetStringCharsAndLength(cx, jsstr, &length)))
return nsnull;
}
JS::Anchor<JSString *> kungFuDeathGrip(jsstr);
script = JS_CompileUCScript (cx, obj, chars, length, "x-jsd:ppbuffer?type=script", 1);
if (!script)
return nsnull;
baseLine = 1;
}
PRUint32 scriptExtent = JS_GetScriptLineExtent (cx, script);
jsbytecode* firstPC = JS_LineNumberToPC (cx, script, 0);
/* allocate worst case size of map (number of lines in script + 1
* for our 0 record), we'll shrink it with a realloc later. */
PCMapEntry *lineMap =
static_cast<PCMapEntry *>
(PR_Malloc((scriptExtent + 1) * sizeof (PCMapEntry)));
PRUint32 lineMapSize = 0;
if (lineMap) {
for (PRUint32 line = baseLine; line < scriptExtent + baseLine; ++line) {
jsbytecode* pc = JS_LineNumberToPC (cx, script, line);
if (line == JS_PCToLineNumber (cx, script, pc)) {
lineMap[lineMapSize].line = line;
lineMap[lineMapSize].pc = pc - firstPC;
++lineMapSize;
}
}
if (scriptExtent != lineMapSize) {
lineMap =
static_cast<PCMapEntry *>
(PR_Realloc(mPPLineMap = lineMap,
lineMapSize * sizeof(PCMapEntry)));
if (!lineMap) {
PR_Free(mPPLineMap);
lineMapSize = 0;
}
}
}
mPCMapSize = lineMapSize;
return mPPLineMap = lineMap;
}
PRUint32
jsdScript::PPPcToLine (PRUint32 aPC)
{
if (!mPPLineMap && !CreatePPLineMap())
return 0;
PRUint32 i;
for (i = 1; i < mPCMapSize; ++i) {
if (mPPLineMap[i].pc > aPC)
return mPPLineMap[i - 1].line;
}
return mPPLineMap[mPCMapSize - 1].line;
}
PRUint32
jsdScript::PPLineToPc (PRUint32 aLine)
{
if (!mPPLineMap && !CreatePPLineMap())
return 0;
PRUint32 i;
for (i = 1; i < mPCMapSize; ++i) {
if (mPPLineMap[i].line > aLine)
return mPPLineMap[i - 1].pc;
}
return mPPLineMap[mPCMapSize - 1].pc;
}
NS_IMETHODIMP
jsdScript::GetJSDContext(JSDContext **_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = mCx;
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetJSDScript(JSDScript **_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = mScript;
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetVersion (PRInt32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
JSContext *cx = JSD_GetDefaultJSContext (mCx);
JSScript *script = JSD_GetJSScript(mCx, mScript);
JS::AutoEnterScriptCompartment ac;
if (!ac.enter(cx, script))
return NS_ERROR_FAILURE;
*_rval = static_cast<PRInt32>(JS_GetScriptVersion(cx, script));
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetTag(PRUint32 *_rval)
{
if (!mTag)
mTag = ++jsdScript::LastTag;
*_rval = mTag;
return NS_OK;
}
NS_IMETHODIMP
jsdScript::Invalidate()
{
ASSERT_VALID_EPHEMERAL;
mValid = false;
/* release the addref we do in FromPtr */
jsdIScript *script = static_cast<jsdIScript *>
(JSD_GetScriptPrivate(mScript));
NS_ASSERTION (script == this, "That's not my script!");
NS_RELEASE(script);
JSD_SetScriptPrivate(mScript, NULL);
return NS_OK;
}
void
jsdScript::InvalidateAll ()
{
JSDContext *cx;
if (NS_FAILED(gJsds->GetJSDContext (&cx)))
return;
JSDScript *script;
JSDScript *iter = NULL;
JSD_LockScriptSubsystem(cx);
while((script = JSD_IterateScripts(cx, &iter)) != NULL) {
nsCOMPtr<jsdIScript> jsdis =
static_cast<jsdIScript *>(JSD_GetScriptPrivate(script));
if (jsdis)
jsdis->Invalidate();
}
JSD_UnlockScriptSubsystem(cx);
}
NS_IMETHODIMP
jsdScript::GetIsValid(bool *_rval)
{
*_rval = mValid;
return NS_OK;
}
NS_IMETHODIMP
jsdScript::SetFlags(PRUint32 flags)
{
ASSERT_VALID_EPHEMERAL;
JSD_SetScriptFlags(mCx, mScript, flags);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetFlags(PRUint32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetScriptFlags(mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetFileName(nsACString &_rval)
{
_rval.Assign(*mFileName);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetFunctionName(nsACString &_rval)
{
_rval.Assign(*mFunctionName);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetParameterNames(PRUint32* count, PRUnichar*** paramNames)
{
ASSERT_VALID_EPHEMERAL;
JSContext *cx = JSD_GetDefaultJSContext (mCx);
if (!cx) {
NS_WARNING("No default context !?");
return NS_ERROR_FAILURE;
}
JSFunction *fun = JSD_GetJSFunction (mCx, mScript);
if (!fun) {
*count = 0;
*paramNames = nsnull;
return NS_OK;
}
JSAutoRequest ar(cx);
JSAutoEnterCompartment ac;
if (!ac.enter(cx, JS_GetFunctionObject(fun)))
return NS_ERROR_FAILURE;
unsigned nargs;
if (!JS_FunctionHasLocalNames(cx, fun) ||
(nargs = JS_GetFunctionArgumentCount(cx, fun)) == 0) {
*count = 0;
*paramNames = nsnull;
return NS_OK;
}
PRUnichar **ret =
static_cast<PRUnichar**>(NS_Alloc(nargs * sizeof(PRUnichar*)));
if (!ret)
return NS_ERROR_OUT_OF_MEMORY;
void *mark;
uintptr_t *names = JS_GetFunctionLocalNameArray(cx, fun, &mark);
if (!names) {
NS_Free(ret);
return NS_ERROR_OUT_OF_MEMORY;
}
nsresult rv = NS_OK;
for (unsigned i = 0; i < nargs; ++i) {
JSAtom *atom = JS_LocalNameToAtom(names[i]);
if (!atom) {
ret[i] = 0;
} else {
JSString *str = JS_AtomKey(atom);
ret[i] = NS_strndup(JS_GetInternedStringChars(str), JS_GetStringLength(str));
if (!ret[i]) {
NS_FREE_XPCOM_ALLOCATED_POINTER_ARRAY(i, ret);
rv = NS_ERROR_OUT_OF_MEMORY;
break;
}
}
}
JS_ReleaseFunctionLocalNameArray(cx, mark);
if (NS_FAILED(rv))
return rv;
*count = nargs;
*paramNames = ret;
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetFunctionObject(jsdIValue **_rval)
{
JSFunction *fun = JSD_GetJSFunction(mCx, mScript);
if (!fun)
return NS_ERROR_NOT_AVAILABLE;
JSObject *obj = JS_GetFunctionObject(fun);
if (!obj)
return NS_ERROR_FAILURE;
JSDContext *cx;
if (NS_FAILED(gJsds->GetJSDContext (&cx)))
return NS_ERROR_NOT_INITIALIZED;
JSDValue *jsdv = JSD_NewValue(cx, OBJECT_TO_JSVAL(obj));
if (!jsdv)
return NS_ERROR_OUT_OF_MEMORY;
*_rval = jsdValue::FromPtr(cx, jsdv);
if (!*_rval) {
JSD_DropValue(cx, jsdv);
return NS_ERROR_OUT_OF_MEMORY;
}
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetFunctionSource(nsAString & aFunctionSource)
{
ASSERT_VALID_EPHEMERAL;
JSContext *cx = JSD_GetDefaultJSContext (mCx);
if (!cx) {
NS_WARNING("No default context !?");
return NS_ERROR_FAILURE;
}
JSFunction *fun = JSD_GetJSFunction (mCx, mScript);
JSAutoRequest ar(cx);
JSString *jsstr;
JSAutoEnterCompartment ac;
JS::AutoEnterScriptCompartment asc;
if (fun) {
if (!ac.enter(cx, JS_GetFunctionObject(fun)))
return NS_ERROR_FAILURE;
jsstr = JS_DecompileFunction (cx, fun, 4);
} else {
JSScript *script = JSD_GetJSScript (mCx, mScript);
if (!asc.enter(cx, script))
return NS_ERROR_FAILURE;
jsstr = JS_DecompileScript (cx, script, "ppscript", 4);
}
if (!jsstr)
return NS_ERROR_FAILURE;
size_t length;
const jschar *chars = JS_GetStringCharsZAndLength(cx, jsstr, &length);
if (!chars)
return NS_ERROR_FAILURE;
aFunctionSource = nsDependentString(chars, length);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetBaseLineNumber(PRUint32 *_rval)
{
*_rval = mBaseLineNumber;
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetLineExtent(PRUint32 *_rval)
{
*_rval = mLineExtent;
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetCallCount(PRUint32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetScriptCallCount (mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetMaxRecurseDepth(PRUint32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetScriptMaxRecurseDepth (mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetMinExecutionTime(double *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetScriptMinExecutionTime (mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetMaxExecutionTime(double *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetScriptMaxExecutionTime (mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetTotalExecutionTime(double *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetScriptTotalExecutionTime (mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetMinOwnExecutionTime(double *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetScriptMinOwnExecutionTime (mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetMaxOwnExecutionTime(double *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetScriptMaxOwnExecutionTime (mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetTotalOwnExecutionTime(double *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetScriptTotalOwnExecutionTime (mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::ClearProfileData()
{
ASSERT_VALID_EPHEMERAL;
JSD_ClearScriptProfileData(mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::PcToLine(PRUint32 aPC, PRUint32 aPcmap, PRUint32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
if (aPcmap == PCMAP_SOURCETEXT) {
*_rval = JSD_GetClosestLine (mCx, mScript, mFirstPC + aPC);
} else if (aPcmap == PCMAP_PRETTYPRINT) {
*_rval = PPPcToLine(aPC);
} else {
return NS_ERROR_INVALID_ARG;
}
return NS_OK;
}
NS_IMETHODIMP
jsdScript::LineToPc(PRUint32 aLine, PRUint32 aPcmap, PRUint32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
if (aPcmap == PCMAP_SOURCETEXT) {
uintptr_t pc = JSD_GetClosestPC (mCx, mScript, aLine);
*_rval = pc - mFirstPC;
} else if (aPcmap == PCMAP_PRETTYPRINT) {
*_rval = PPLineToPc(aLine);
} else {
return NS_ERROR_INVALID_ARG;
}
return NS_OK;
}
NS_IMETHODIMP
jsdScript::EnableSingleStepInterrupts(bool enable)
{
ASSERT_VALID_EPHEMERAL;
/* Must have set interrupt hook before enabling */
if (enable && !jsdService::GetService()->CheckInterruptHook())
return NS_ERROR_NOT_INITIALIZED;
return (JSD_EnableSingleStepInterrupts(mCx, mScript, enable) ? NS_OK : NS_ERROR_FAILURE);
}
NS_IMETHODIMP
jsdScript::GetExecutableLines(PRUint32 aPcmap, PRUint32 aStartLine, PRUint32 aMaxLines,
PRUint32* aCount, PRUint32** aExecutableLines)
{
ASSERT_VALID_EPHEMERAL;
if (aPcmap == PCMAP_SOURCETEXT) {
uintptr_t start = JSD_GetClosestPC(mCx, mScript, 0);
unsigned lastLine = JSD_GetScriptBaseLineNumber(mCx, mScript)
+ JSD_GetScriptLineExtent(mCx, mScript) - 1;
uintptr_t end = JSD_GetClosestPC(mCx, mScript, lastLine + 1);
*aExecutableLines = static_cast<PRUint32*>(NS_Alloc((end - start + 1) * sizeof(PRUint32)));
if (!JSD_GetLinePCs(mCx, mScript, aStartLine, aMaxLines, aCount, aExecutableLines, NULL))
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
}
if (aPcmap == PCMAP_PRETTYPRINT) {
if (!mPPLineMap) {
if (!CreatePPLineMap())
return NS_ERROR_OUT_OF_MEMORY;
}
nsTArray<PRUint32> lines;
PRUint32 i;
for (i = 0; i < mPCMapSize; ++i) {
if (mPPLineMap[i].line >= aStartLine)
break;
}
for (; i < mPCMapSize && lines.Length() < aMaxLines; ++i) {
lines.AppendElement(mPPLineMap[i].line);
}
if (aCount)
*aCount = lines.Length();
*aExecutableLines = static_cast<PRUint32*>(NS_Alloc(lines.Length() * sizeof(PRUint32)));
if (!*aExecutableLines)
return NS_ERROR_OUT_OF_MEMORY;
for (i = 0; i < lines.Length(); ++i)
(*aExecutableLines)[i] = lines[i];
return NS_OK;
}
return NS_ERROR_INVALID_ARG;
}
NS_IMETHODIMP
jsdScript::IsLineExecutable(PRUint32 aLine, PRUint32 aPcmap, bool *_rval)
{
ASSERT_VALID_EPHEMERAL;
if (aPcmap == PCMAP_SOURCETEXT) {
uintptr_t pc = JSD_GetClosestPC (mCx, mScript, aLine);
*_rval = (aLine == JSD_GetClosestLine (mCx, mScript, pc));
} else if (aPcmap == PCMAP_PRETTYPRINT) {
if (!mPPLineMap && !CreatePPLineMap())
return NS_ERROR_OUT_OF_MEMORY;
*_rval = false;
for (PRUint32 i = 0; i < mPCMapSize; ++i) {
if (mPPLineMap[i].line >= aLine) {
*_rval = (mPPLineMap[i].line == aLine);
break;
}
}
} else {
return NS_ERROR_INVALID_ARG;
}
return NS_OK;
}
NS_IMETHODIMP
jsdScript::SetBreakpoint(PRUint32 aPC)
{
ASSERT_VALID_EPHEMERAL;
uintptr_t pc = mFirstPC + aPC;
JSD_SetExecutionHook (mCx, mScript, pc, jsds_ExecutionHookProc, NULL);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::ClearBreakpoint(PRUint32 aPC)
{
ASSERT_VALID_EPHEMERAL;
uintptr_t pc = mFirstPC + aPC;
JSD_ClearExecutionHook (mCx, mScript, pc);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::ClearAllBreakpoints()
{
ASSERT_VALID_EPHEMERAL;
JSD_LockScriptSubsystem(mCx);
JSD_ClearAllExecutionHooksForScript (mCx, mScript);
JSD_UnlockScriptSubsystem(mCx);
return NS_OK;
}
/* Contexts */
NS_IMPL_THREADSAFE_ISUPPORTS2(jsdContext, jsdIContext, jsdIEphemeral)
jsdIContext *
jsdContext::FromPtr (JSDContext *aJSDCx, JSContext *aJSCx)
{
if (!aJSDCx || !aJSCx)
return nsnull;
nsCOMPtr<jsdIContext> jsdicx;
nsCOMPtr<jsdIEphemeral> eph =
jsds_FindEphemeral (&gLiveContexts, static_cast<void *>(aJSCx));
if (eph)
{
jsdicx = do_QueryInterface(eph);
}
else
{
nsCOMPtr<nsISupports> iscx;
if (JS_GetOptions(aJSCx) & JSOPTION_PRIVATE_IS_NSISUPPORTS)
iscx = static_cast<nsISupports *>(JS_GetContextPrivate(aJSCx));
jsdicx = new jsdContext (aJSDCx, aJSCx, iscx);
}
jsdIContext *ctx = nsnull;
jsdicx.swap(ctx);
return ctx;
}
jsdContext::jsdContext (JSDContext *aJSDCx, JSContext *aJSCx,
nsISupports *aISCx) : mValid(true), mTag(0),
mJSDCx(aJSDCx),
mJSCx(aJSCx), mISCx(aISCx)
{
DEBUG_CREATE ("jsdContext", gContextCount);
mLiveListEntry.value = this;
mLiveListEntry.key = static_cast<void *>(aJSCx);
jsds_InsertEphemeral (&gLiveContexts, &mLiveListEntry);
}
jsdContext::~jsdContext()
{
DEBUG_DESTROY ("jsdContext", gContextCount);
if (mValid)
{
/* call Invalidate() to take ourselves out of the live list */
Invalidate();
}
}
NS_IMETHODIMP
jsdContext::GetIsValid(bool *_rval)
{
*_rval = mValid;
return NS_OK;
}
NS_IMETHODIMP
jsdContext::Invalidate()
{
ASSERT_VALID_EPHEMERAL;
mValid = false;
jsds_RemoveEphemeral (&gLiveContexts, &mLiveListEntry);
return NS_OK;
}
void
jsdContext::InvalidateAll()
{
if (gLiveContexts)
jsds_InvalidateAllEphemerals (&gLiveContexts);
}
NS_IMETHODIMP
jsdContext::GetJSContext(JSContext **_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = mJSCx;
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetOptions(PRUint32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JS_GetOptions(mJSCx);
return NS_OK;
}
NS_IMETHODIMP
jsdContext::SetOptions(PRUint32 options)
{
ASSERT_VALID_EPHEMERAL;
PRUint32 lastOptions = JS_GetOptions(mJSCx);
/* don't let users change this option, they'd just be shooting themselves
* in the foot. */
if ((options ^ lastOptions) & JSOPTION_PRIVATE_IS_NSISUPPORTS)
return NS_ERROR_ILLEGAL_VALUE;
JS_SetOptions(mJSCx, options);
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetPrivateData(nsISupports **_rval)
{
ASSERT_VALID_EPHEMERAL;
PRUint32 options = JS_GetOptions(mJSCx);
if (options & JSOPTION_PRIVATE_IS_NSISUPPORTS)
{
*_rval = static_cast<nsISupports*>(JS_GetContextPrivate(mJSCx));
NS_IF_ADDREF(*_rval);
}
else
{
*_rval = nsnull;
}
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetWrappedContext(nsISupports **_rval)
{
ASSERT_VALID_EPHEMERAL;
NS_IF_ADDREF(*_rval = mISCx);
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetTag(PRUint32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
if (!mTag)
mTag = ++jsdContext::LastTag;
*_rval = mTag;
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetVersion (PRInt32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = static_cast<PRInt32>(JS_GetVersion(mJSCx));
return NS_OK;
}
NS_IMETHODIMP
jsdContext::SetVersion (PRInt32 id)
{
ASSERT_VALID_EPHEMERAL;
JSVersion ver = static_cast<JSVersion>(id);
JS_SetVersion(mJSCx, ver);
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetGlobalObject (jsdIValue **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSObject *glob = JS_GetGlobalObject(mJSCx);
JSDValue *jsdv = JSD_NewValue (mJSDCx, OBJECT_TO_JSVAL(glob));
if (!jsdv)
return NS_ERROR_FAILURE;
*_rval = jsdValue::FromPtr (mJSDCx, jsdv);
if (!*_rval)
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetScriptsEnabled (bool *_rval)
{
ASSERT_VALID_EPHEMERAL;
if (!mISCx) {
*_rval = true;
return NS_OK;
}
nsCOMPtr<nsIScriptContext> context = do_QueryInterface(mISCx);
if (!context)
return NS_ERROR_NO_INTERFACE;
*_rval = context->GetScriptsEnabled();
return NS_OK;
}
NS_IMETHODIMP
jsdContext::SetScriptsEnabled (bool _rval)
{
ASSERT_VALID_EPHEMERAL;
if (!mISCx) {
if (_rval)
return NS_OK;
return NS_ERROR_NO_INTERFACE;
}
nsCOMPtr<nsIScriptContext> context = do_QueryInterface(mISCx);
if (!context)
return NS_ERROR_NO_INTERFACE;
context->SetScriptsEnabled(_rval, true);
return NS_OK;
}
/* Stack Frames */
NS_IMPL_THREADSAFE_ISUPPORTS2(jsdStackFrame, jsdIStackFrame, jsdIEphemeral)
jsdStackFrame::jsdStackFrame (JSDContext *aCx, JSDThreadState *aThreadState,
JSDStackFrameInfo *aStackFrameInfo) :
mCx(aCx), mThreadState(aThreadState), mStackFrameInfo(aStackFrameInfo)
{
DEBUG_CREATE ("jsdStackFrame", gFrameCount);
mValid = (aCx && aThreadState && aStackFrameInfo);
if (mValid) {
mLiveListEntry.key = aStackFrameInfo;
mLiveListEntry.value = this;
jsds_InsertEphemeral (&gLiveStackFrames, &mLiveListEntry);
}
}
jsdStackFrame::~jsdStackFrame()
{
DEBUG_DESTROY ("jsdStackFrame", gFrameCount);
if (mValid)
{
/* call Invalidate() to take ourselves out of the live list */
Invalidate();
}
}
jsdIStackFrame *
jsdStackFrame::FromPtr (JSDContext *aCx, JSDThreadState *aThreadState,
JSDStackFrameInfo *aStackFrameInfo)
{
if (!aStackFrameInfo)
return nsnull;
jsdIStackFrame *rv;
nsCOMPtr<jsdIStackFrame> frame;
nsCOMPtr<jsdIEphemeral> eph =
jsds_FindEphemeral (&gLiveStackFrames,
reinterpret_cast<void *>(aStackFrameInfo));
if (eph)
{
frame = do_QueryInterface(eph);
rv = frame;
}
else
{
rv = new jsdStackFrame (aCx, aThreadState, aStackFrameInfo);
}
NS_IF_ADDREF(rv);
return rv;
}
NS_IMETHODIMP
jsdStackFrame::Invalidate()
{
ASSERT_VALID_EPHEMERAL;
mValid = false;
jsds_RemoveEphemeral (&gLiveStackFrames, &mLiveListEntry);
return NS_OK;
}
void
jsdStackFrame::InvalidateAll()
{
if (gLiveStackFrames)
jsds_InvalidateAllEphemerals (&gLiveStackFrames);
}
NS_IMETHODIMP
jsdStackFrame::GetJSDContext(JSDContext **_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = mCx;
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetJSDThreadState(JSDThreadState **_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = mThreadState;
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetJSDStackFrameInfo(JSDStackFrameInfo **_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = mStackFrameInfo;
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetIsValid(bool *_rval)
{
*_rval = mValid;
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetCallingFrame(jsdIStackFrame **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDStackFrameInfo *sfi = JSD_GetCallingStackFrame (mCx, mThreadState,
mStackFrameInfo);
*_rval = jsdStackFrame::FromPtr (mCx, mThreadState, sfi);
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetExecutionContext(jsdIContext **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSContext *cx = JSD_GetJSContext (mCx, mThreadState);
*_rval = jsdContext::FromPtr (mCx, cx);
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetFunctionName(nsACString &_rval)
{
ASSERT_VALID_EPHEMERAL;
JSString *str = JSD_GetIdForStackFrame(mCx, mThreadState, mStackFrameInfo);
if (str)
return AssignToJSString(&_rval, str);
_rval.Assign("anonymous");
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetIsDebugger(bool *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_IsStackFrameDebugger (mCx, mThreadState, mStackFrameInfo);
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetIsConstructing(bool *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_IsStackFrameConstructing (mCx, mThreadState, mStackFrameInfo);
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetScript(jsdIScript **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDScript *script = JSD_GetScriptForStackFrame (mCx, mThreadState,
mStackFrameInfo);
*_rval = jsdScript::FromPtr (mCx, script);
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetPc(PRUint32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDScript *script = JSD_GetScriptForStackFrame (mCx, mThreadState,
mStackFrameInfo);
if (!script)
return NS_ERROR_FAILURE;
uintptr_t pcbase = JSD_GetClosestPC(mCx, script, 0);
uintptr_t pc = JSD_GetPCForStackFrame (mCx, mThreadState, mStackFrameInfo);
if (pc)
*_rval = pc - pcbase;
else
*_rval = pcbase;
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetLine(PRUint32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDScript *script = JSD_GetScriptForStackFrame (mCx, mThreadState,
mStackFrameInfo);
if (script) {
uintptr_t pc = JSD_GetPCForStackFrame (mCx, mThreadState, mStackFrameInfo);
*_rval = JSD_GetClosestLine (mCx, script, pc);
} else {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetCallee(jsdIValue **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDValue *jsdv = JSD_GetCallObjectForStackFrame (mCx, mThreadState,
mStackFrameInfo);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetScope(jsdIValue **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDValue *jsdv = JSD_GetScopeChainForStackFrame (mCx, mThreadState,
mStackFrameInfo);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::GetThisValue(jsdIValue **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDValue *jsdv = JSD_GetThisForStackFrame (mCx, mThreadState,
mStackFrameInfo);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdStackFrame::Eval (const nsAString &bytes, const nsACString &fileName,
PRUint32 line, jsdIValue **result, bool *_rval)
{
ASSERT_VALID_EPHEMERAL;
if (bytes.IsEmpty())
return NS_ERROR_INVALID_ARG;
// get pointer to buffer contained in |bytes|
nsAString::const_iterator h;
bytes.BeginReading(h);
const jschar *char_bytes = reinterpret_cast<const jschar *>(h.get());
JSExceptionState *estate = 0;
jsval jv;
JSContext *cx = JSD_GetJSContext (mCx, mThreadState);
JSAutoRequest ar(cx);
estate = JS_SaveExceptionState (cx);
JS_ClearPendingException (cx);
nsresult rv;
nsCOMPtr<nsIJSContextStack> stack = do_GetService("@mozilla.org/js/xpc/ContextStack;1", &rv);
if (NS_SUCCEEDED(rv))
rv = stack->Push(cx);
if (NS_FAILED(rv)) {
JS_RestoreExceptionState (cx, estate);
return rv;
}
*_rval = JSD_AttemptUCScriptInStackFrame (mCx, mThreadState,
mStackFrameInfo,
char_bytes, bytes.Length(),
PromiseFlatCString(fileName).get(),
line, &jv);
if (!*_rval) {
if (JS_IsExceptionPending(cx))
JS_GetPendingException (cx, &jv);
else
jv = JSVAL_NULL;
}
JS_RestoreExceptionState (cx, estate);
#ifdef DEBUG
JSContext* poppedCX;
rv = stack->Pop(&poppedCX);
NS_ASSERTION(NS_SUCCEEDED(rv) && poppedCX == cx, "bad pop");
#else
(void) stack->Pop(nsnull);
#endif
JSDValue *jsdv = JSD_NewValue (mCx, jv);
if (!jsdv)
return NS_ERROR_FAILURE;
*result = jsdValue::FromPtr (mCx, jsdv);
if (!*result)
return NS_ERROR_FAILURE;
return NS_OK;
}
/* Values */
NS_IMPL_THREADSAFE_ISUPPORTS2(jsdValue, jsdIValue, jsdIEphemeral)
jsdIValue *
jsdValue::FromPtr (JSDContext *aCx, JSDValue *aValue)
{
/* value will be dropped by te jsdValue destructor. */
if (!aValue)
return nsnull;
jsdIValue *rv = new jsdValue (aCx, aValue);
NS_IF_ADDREF(rv);
return rv;
}
jsdValue::jsdValue (JSDContext *aCx, JSDValue *aValue) : mValid(true),
mCx(aCx),
mValue(aValue)
{
DEBUG_CREATE ("jsdValue", gValueCount);
mLiveListEntry.value = this;
jsds_InsertEphemeral (&gLiveValues, &mLiveListEntry);
}
jsdValue::~jsdValue()
{
DEBUG_DESTROY ("jsdValue", gValueCount);
if (mValid)
/* call Invalidate() to take ourselves out of the live list */
Invalidate();
}
NS_IMETHODIMP
jsdValue::GetIsValid(bool *_rval)
{
*_rval = mValid;
return NS_OK;
}
NS_IMETHODIMP
jsdValue::Invalidate()
{
ASSERT_VALID_EPHEMERAL;
mValid = false;
jsds_RemoveEphemeral (&gLiveValues, &mLiveListEntry);
JSD_DropValue (mCx, mValue);
return NS_OK;
}
void
jsdValue::InvalidateAll()
{
if (gLiveValues)
jsds_InvalidateAllEphemerals (&gLiveValues);
}
NS_IMETHODIMP
jsdValue::GetJSDContext(JSDContext **_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = mCx;
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetJSDValue (JSDValue **_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = mValue;
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetIsNative (bool *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_IsValueNative (mCx, mValue);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetIsNumber (bool *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_IsValueNumber (mCx, mValue);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetIsPrimitive (bool *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_IsValuePrimitive (mCx, mValue);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetJsType (PRUint32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
jsval val;
val = JSD_GetValueWrappedJSVal (mCx, mValue);
if (JSVAL_IS_NULL(val))
*_rval = TYPE_NULL;
else if (JSVAL_IS_BOOLEAN(val))
*_rval = TYPE_BOOLEAN;
else if (JSVAL_IS_DOUBLE(val))
*_rval = TYPE_DOUBLE;
else if (JSVAL_IS_INT(val))
*_rval = TYPE_INT;
else if (JSVAL_IS_STRING(val))
*_rval = TYPE_STRING;
else if (JSVAL_IS_VOID(val))
*_rval = TYPE_VOID;
else if (JSD_IsValueFunction (mCx, mValue))
*_rval = TYPE_FUNCTION;
else if (JSVAL_IS_OBJECT(val))
*_rval = TYPE_OBJECT;
else
NS_ASSERTION (0, "Value has no discernible type.");
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetJsPrototype (jsdIValue **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDValue *jsdv = JSD_GetValuePrototype (mCx, mValue);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetJsParent (jsdIValue **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDValue *jsdv = JSD_GetValueParent (mCx, mValue);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetJsClassName(nsACString &_rval)
{
ASSERT_VALID_EPHEMERAL;
_rval.Assign(JSD_GetValueClassName(mCx, mValue));
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetJsConstructor (jsdIValue **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDValue *jsdv = JSD_GetValueConstructor (mCx, mValue);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetJsFunctionName(nsACString &_rval)
{
ASSERT_VALID_EPHEMERAL;
return AssignToJSString(&_rval, JSD_GetValueFunctionId(mCx, mValue));
}
NS_IMETHODIMP
jsdValue::GetBooleanValue(bool *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetValueBoolean (mCx, mValue);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetDoubleValue(double *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetValueDouble (mCx, mValue);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetIntValue(PRInt32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetValueInt (mCx, mValue);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetObjectValue(jsdIObject **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDObject *obj;
obj = JSD_GetObjectForValue (mCx, mValue);
*_rval = jsdObject::FromPtr (mCx, obj);
if (!*_rval)
return NS_ERROR_FAILURE;
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetStringValue(nsACString &_rval)
{
ASSERT_VALID_EPHEMERAL;
JSContext *cx = JSD_GetDefaultJSContext (mCx);
if (!cx) {
NS_WARNING("No default context !?");
return NS_ERROR_FAILURE;
}
JSString *jstr_val = JSD_GetValueString(mCx, mValue);
if (jstr_val) {
size_t length;
const jschar *chars = JS_GetStringCharsZAndLength(cx, jstr_val, &length);
if (!chars)
return NS_ERROR_FAILURE;
nsDependentString depStr(chars, length);
CopyUTF16toUTF8(depStr, _rval);
} else {
_rval.Truncate();
}
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetPropertyCount (PRInt32 *_rval)
{
ASSERT_VALID_EPHEMERAL;
if (JSD_IsValueObject(mCx, mValue))
*_rval = JSD_GetCountOfProperties (mCx, mValue);
else
*_rval = -1;
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetProperties (jsdIProperty ***propArray, PRUint32 *length)
{
ASSERT_VALID_EPHEMERAL;
*propArray = nsnull;
if (length)
*length = 0;
PRUint32 prop_count = JSD_IsValueObject(mCx, mValue)
? JSD_GetCountOfProperties (mCx, mValue)
: 0;
NS_ENSURE_TRUE(prop_count, NS_OK);
jsdIProperty **pa_temp =
static_cast<jsdIProperty **>
(nsMemory::Alloc(sizeof (jsdIProperty *) *
prop_count));
NS_ENSURE_TRUE(pa_temp, NS_ERROR_OUT_OF_MEMORY);
PRUint32 i = 0;
JSDProperty *iter = NULL;
JSDProperty *prop;
while ((prop = JSD_IterateProperties (mCx, mValue, &iter))) {
pa_temp[i] = jsdProperty::FromPtr (mCx, prop);
++i;
}
NS_ASSERTION (prop_count == i, "property count mismatch");
/* if caller doesn't care about length, don't bother telling them */
*propArray = pa_temp;
if (length)
*length = prop_count;
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetProperty (const nsACString &name, jsdIProperty **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSContext *cx = JSD_GetDefaultJSContext (mCx);
JSAutoRequest ar(cx);
/* not rooting this */
JSString *jstr_name = JS_NewStringCopyZ(cx, PromiseFlatCString(name).get());
if (!jstr_name)
return NS_ERROR_OUT_OF_MEMORY;
JSDProperty *prop = JSD_GetValueProperty (mCx, mValue, jstr_name);
*_rval = jsdProperty::FromPtr (mCx, prop);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::Refresh()
{
ASSERT_VALID_EPHEMERAL;
JSD_RefreshValue (mCx, mValue);
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetWrappedValue(JSContext* aCx, JS::Value* aRetval)
{
ASSERT_VALID_EPHEMERAL;
*aRetval = JSD_GetValueWrappedJSVal(mCx, mValue);
if (!JS_WrapValue(aCx, aRetval)) {
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
jsdValue::GetScript(jsdIScript **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSDScript *script = JSD_GetScriptForValue(mCx, mValue);
*_rval = jsdScript::FromPtr(mCx, script);
return NS_OK;
}
/******************************************************************************
* debugger service implementation
******************************************************************************/
NS_IMPL_THREADSAFE_ISUPPORTS1(jsdService, jsdIDebuggerService)
NS_IMETHODIMP
jsdService::GetJSDContext(JSDContext **_rval)
{
*_rval = mCx;
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetFlags (PRUint32 *_rval)
{
ASSERT_VALID_CONTEXT;
*_rval = JSD_GetContextFlags (mCx);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SetFlags (PRUint32 flags)
{
ASSERT_VALID_CONTEXT;
JSD_SetContextFlags (mCx, flags);
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetImplementationString(nsACString &aImplementationString)
{
aImplementationString.AssignLiteral(implementationString);
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetImplementationMajor(PRUint32 *_rval)
{
*_rval = JSDS_MAJOR_VERSION;
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetImplementationMinor(PRUint32 *_rval)
{
*_rval = JSDS_MINOR_VERSION;
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetIsOn (bool *_rval)
{
*_rval = mOn;
return NS_OK;
}
NS_IMETHODIMP
jsdService::On (void)
{
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
jsdService::AsyncOn (jsdIActivationCallback *activationCallback)
{
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv);
if (NS_FAILED(rv)) return rv;
mActivationCallback = activationCallback;
return xpc->SetDebugModeWhenPossible(true, true);
}
NS_IMETHODIMP
jsdService::RecompileForDebugMode (JSContext *cx, JSCompartment *comp, bool mode) {
NS_ASSERTION(NS_IsMainThread(), "wrong thread");
/* XPConnect now does this work itself, so this IDL entry point is no longer used. */
return NS_ERROR_NOT_IMPLEMENTED;
}
NS_IMETHODIMP
jsdService::DeactivateDebugger ()
{
if (!mCx)
return NS_OK;
jsdContext::InvalidateAll();
jsdScript::InvalidateAll();
jsdValue::InvalidateAll();
jsdProperty::InvalidateAll();
jsdStackFrame::InvalidateAll();
ClearAllBreakpoints();
JSD_SetErrorReporter (mCx, NULL, NULL);
JSD_SetScriptHook (mCx, NULL, NULL);
JSD_ClearThrowHook (mCx);
JSD_ClearInterruptHook (mCx);
JSD_ClearDebuggerHook (mCx);
JSD_ClearDebugBreakHook (mCx);
JSD_ClearTopLevelHook (mCx);
JSD_ClearFunctionHook (mCx);
JSD_DebuggerOff (mCx);
mCx = nsnull;
mRuntime = nsnull;
mOn = false;
return NS_OK;
}
NS_IMETHODIMP
jsdService::ActivateDebugger (JSRuntime *rt)
{
if (mOn)
return (rt == mRuntime) ? NS_OK : NS_ERROR_ALREADY_INITIALIZED;
mRuntime = rt;
if (gPrevGCSliceCallback == jsds_GCSliceCallbackProc)
/* condition indicates that the callback proc has not been set yet */
gPrevGCSliceCallback = js::SetGCSliceCallback (rt, jsds_GCSliceCallbackProc);
mCx = JSD_DebuggerOnForUser (rt, NULL, NULL);
if (!mCx)
return NS_ERROR_FAILURE;
JSContext *cx = JSD_GetDefaultJSContext (mCx);
JSObject *glob = JS_GetGlobalObject (cx);
/* init xpconnect on the debugger's context in case xpconnect tries to
* use it for stuff. */
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv);
if (NS_FAILED(rv))
return rv;
xpc->InitClasses (cx, glob);
/* Start watching for script creation/destruction and manage jsdScript
* objects accordingly
*/
JSD_SetScriptHook (mCx, jsds_ScriptHookProc, NULL);
/* If any of these mFooHook objects are installed, do the required JSD
* hookup now. See also, jsdService::SetFooHook().
*/
if (mErrorHook)
JSD_SetErrorReporter (mCx, jsds_ErrorHookProc, NULL);
if (mThrowHook)
JSD_SetThrowHook (mCx, jsds_ExecutionHookProc, NULL);
/* can't ignore script callbacks, as we need to |Release| the wrapper
* stored in private data when a script is deleted. */
if (mInterruptHook)
JSD_SetInterruptHook (mCx, jsds_ExecutionHookProc, NULL);
if (mDebuggerHook)
JSD_SetDebuggerHook (mCx, jsds_ExecutionHookProc, NULL);
if (mDebugHook)
JSD_SetDebugBreakHook (mCx, jsds_ExecutionHookProc, NULL);
if (mTopLevelHook)
JSD_SetTopLevelHook (mCx, jsds_CallHookProc, NULL);
else
JSD_ClearTopLevelHook (mCx);
if (mFunctionHook)
JSD_SetFunctionHook (mCx, jsds_CallHookProc, NULL);
else
JSD_ClearFunctionHook (mCx);
mOn = true;
#ifdef DEBUG
printf ("+++ JavaScript debugging hooks installed.\n");
#endif
nsCOMPtr<jsdIActivationCallback> activationCallback;
mActivationCallback.swap(activationCallback);
if (activationCallback)
return activationCallback->OnDebuggerActivated();
return NS_OK;
}
NS_IMETHODIMP
jsdService::Off (void)
{
if (!mOn)
return NS_OK;
if (!mCx || !mRuntime)
return NS_ERROR_NOT_INITIALIZED;
if (gDeadScripts) {
if (gGCRunning)
return NS_ERROR_NOT_AVAILABLE;
JSContext *cx = JSD_GetDefaultJSContext(mCx);
while (gDeadScripts)
jsds_NotifyPendingDeadScripts (JS_GetRuntime(cx));
}
DeactivateDebugger();
#ifdef DEBUG
printf ("+++ JavaScript debugging hooks removed.\n");
#endif
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv);
if (NS_FAILED(rv))
return rv;
xpc->SetDebugModeWhenPossible(false, true);
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetPauseDepth(PRUint32 *_rval)
{
NS_ENSURE_ARG_POINTER(_rval);
*_rval = mPauseLevel;
return NS_OK;
}
NS_IMETHODIMP
jsdService::Pause(PRUint32 *_rval)
{
return DoPause(_rval, false);
}
nsresult
jsdService::DoPause(PRUint32 *_rval, bool internalCall)
{
if (!mCx)
return NS_ERROR_NOT_INITIALIZED;
if (++mPauseLevel == 1) {
JSD_SetErrorReporter (mCx, NULL, NULL);
JSD_ClearThrowHook (mCx);
JSD_ClearInterruptHook (mCx);
JSD_ClearDebuggerHook (mCx);
JSD_ClearDebugBreakHook (mCx);
JSD_ClearTopLevelHook (mCx);
JSD_ClearFunctionHook (mCx);
JSD_DebuggerPause (mCx);
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv);
if (NS_FAILED(rv)) return rv;
if (!internalCall) {
rv = xpc->SetDebugModeWhenPossible(false, false);
NS_ENSURE_SUCCESS(rv, rv);
}
}
if (_rval)
*_rval = mPauseLevel;
return NS_OK;
}
NS_IMETHODIMP
jsdService::UnPause(PRUint32 *_rval)
{
return DoUnPause(_rval, false);
}
nsresult
jsdService::DoUnPause(PRUint32 *_rval, bool internalCall)
{
if (!mCx)
return NS_ERROR_NOT_INITIALIZED;
if (mPauseLevel == 0)
return NS_ERROR_NOT_AVAILABLE;
/* check mOn before we muck with this stuff, it's possible the debugger
* was turned off while we were paused.
*/
if (--mPauseLevel == 0 && mOn) {
JSD_DebuggerUnpause (mCx);
if (mErrorHook)
JSD_SetErrorReporter (mCx, jsds_ErrorHookProc, NULL);
if (mThrowHook)
JSD_SetThrowHook (mCx, jsds_ExecutionHookProc, NULL);
if (mInterruptHook)
JSD_SetInterruptHook (mCx, jsds_ExecutionHookProc, NULL);
if (mDebuggerHook)
JSD_SetDebuggerHook (mCx, jsds_ExecutionHookProc, NULL);
if (mDebugHook)
JSD_SetDebugBreakHook (mCx, jsds_ExecutionHookProc, NULL);
if (mTopLevelHook)
JSD_SetTopLevelHook (mCx, jsds_CallHookProc, NULL);
else
JSD_ClearTopLevelHook (mCx);
if (mFunctionHook)
JSD_SetFunctionHook (mCx, jsds_CallHookProc, NULL);
else
JSD_ClearFunctionHook (mCx);
nsresult rv;
nsCOMPtr<nsIXPConnect> xpc = do_GetService(nsIXPConnect::GetCID(), &rv);
if (NS_FAILED(rv)) return rv;
if (!internalCall) {
rv = xpc->SetDebugModeWhenPossible(true, false);
NS_ENSURE_SUCCESS(rv, rv);
}
}
if (_rval)
*_rval = mPauseLevel;
return NS_OK;
}
NS_IMETHODIMP
jsdService::EnumerateContexts (jsdIContextEnumerator *enumerator)
{
ASSERT_VALID_CONTEXT;
if (!enumerator)
return NS_OK;
JSContext *iter = NULL;
JSContext *cx;
while ((cx = JS_ContextIterator (mRuntime, &iter)))
{
nsCOMPtr<jsdIContext> jsdicx =
getter_AddRefs(jsdContext::FromPtr(mCx, cx));
if (jsdicx)
{
if (NS_FAILED(enumerator->EnumerateContext(jsdicx)))
break;
}
}
return NS_OK;
}
NS_IMETHODIMP
jsdService::EnumerateScripts (jsdIScriptEnumerator *enumerator)
{
ASSERT_VALID_CONTEXT;
JSDScript *script;
JSDScript *iter = NULL;
nsresult rv = NS_OK;
JSD_LockScriptSubsystem(mCx);
while((script = JSD_IterateScripts(mCx, &iter))) {
nsCOMPtr<jsdIScript> jsdis =
getter_AddRefs(jsdScript::FromPtr(mCx, script));
rv = enumerator->EnumerateScript (jsdis);
if (NS_FAILED(rv))
break;
}
JSD_UnlockScriptSubsystem(mCx);
return rv;
}
NS_IMETHODIMP
jsdService::GC (void)
{
ASSERT_VALID_CONTEXT;
JSRuntime *rt = JSD_GetJSRuntime (mCx);
JS_GC(rt);
return NS_OK;
}
NS_IMETHODIMP
jsdService::DumpHeap(const nsACString &fileName)
{
ASSERT_VALID_CONTEXT;
#ifndef DEBUG
return NS_ERROR_NOT_IMPLEMENTED;
#else
nsresult rv = NS_OK;
FILE *file = !fileName.IsEmpty() ? fopen(PromiseFlatCString(fileName).get(), "w") : stdout;
if (!file) {
rv = NS_ERROR_FAILURE;
} else {
JSContext *cx = JSD_GetDefaultJSContext (mCx);
if (!JS_DumpHeap(JS_GetRuntime(cx), file, NULL, JSTRACE_OBJECT, NULL, (size_t)-1, NULL))
rv = NS_ERROR_FAILURE;
if (file != stdout)
fclose(file);
}
return rv;
#endif
}
NS_IMETHODIMP
jsdService::ClearProfileData ()
{
ASSERT_VALID_CONTEXT;
JSD_ClearAllProfileData (mCx);
return NS_OK;
}
NS_IMETHODIMP
jsdService::InsertFilter (jsdIFilter *filter, jsdIFilter *after)
{
NS_ENSURE_ARG_POINTER (filter);
if (jsds_FindFilter (filter))
return NS_ERROR_INVALID_ARG;
FilterRecord *rec = PR_NEWZAP (FilterRecord);
if (!rec)
return NS_ERROR_OUT_OF_MEMORY;
if (!jsds_SyncFilter (rec, filter)) {
PR_Free (rec);
return NS_ERROR_FAILURE;
}
if (gFilters) {
if (!after) {
/* insert at head of list */
PR_INSERT_LINK(&rec->links, &gFilters->links);
gFilters = rec;
} else {
/* insert somewhere in the list */
FilterRecord *afterRecord = jsds_FindFilter (after);
if (!afterRecord) {
jsds_FreeFilter(rec);
return NS_ERROR_INVALID_ARG;
}
PR_INSERT_AFTER(&rec->links, &afterRecord->links);
}
} else {
if (after) {
/* user asked to insert into the middle of an empty list, bail. */
jsds_FreeFilter(rec);
return NS_ERROR_NOT_INITIALIZED;
}
PR_INIT_CLIST(&rec->links);
gFilters = rec;
}
return NS_OK;
}
NS_IMETHODIMP
jsdService::AppendFilter (jsdIFilter *filter)
{
NS_ENSURE_ARG_POINTER (filter);
if (jsds_FindFilter (filter))
return NS_ERROR_INVALID_ARG;
FilterRecord *rec = PR_NEWZAP (FilterRecord);
if (!jsds_SyncFilter (rec, filter)) {
PR_Free (rec);
return NS_ERROR_FAILURE;
}
if (gFilters) {
PR_INSERT_BEFORE(&rec->links, &gFilters->links);
} else {
PR_INIT_CLIST(&rec->links);
gFilters = rec;
}
return NS_OK;
}
NS_IMETHODIMP
jsdService::RemoveFilter (jsdIFilter *filter)
{
NS_ENSURE_ARG_POINTER(filter);
FilterRecord *rec = jsds_FindFilter (filter);
if (!rec)
return NS_ERROR_INVALID_ARG;
if (gFilters == rec) {
gFilters = reinterpret_cast<FilterRecord *>
(PR_NEXT_LINK(&rec->links));
/* If we're the only filter left, null out the list head. */
if (gFilters == rec)
gFilters = nsnull;
}
PR_REMOVE_LINK(&rec->links);
jsds_FreeFilter (rec);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SwapFilters (jsdIFilter *filter_a, jsdIFilter *filter_b)
{
NS_ENSURE_ARG_POINTER(filter_a);
NS_ENSURE_ARG_POINTER(filter_b);
FilterRecord *rec_a = jsds_FindFilter (filter_a);
if (!rec_a)
return NS_ERROR_INVALID_ARG;
if (filter_a == filter_b) {
/* just a refresh */
if (!jsds_SyncFilter (rec_a, filter_a))
return NS_ERROR_FAILURE;
return NS_OK;
}
FilterRecord *rec_b = jsds_FindFilter (filter_b);
if (!rec_b) {
/* filter_b is not in the list, replace filter_a with filter_b. */
if (!jsds_SyncFilter (rec_a, filter_b))
return NS_ERROR_FAILURE;
} else {
/* both filters are in the list, swap. */
if (!jsds_SyncFilter (rec_a, filter_b))
return NS_ERROR_FAILURE;
if (!jsds_SyncFilter (rec_b, filter_a))
return NS_ERROR_FAILURE;
}
return NS_OK;
}
NS_IMETHODIMP
jsdService::EnumerateFilters (jsdIFilterEnumerator *enumerator)
{
if (!gFilters)
return NS_OK;
FilterRecord *current = gFilters;
do {
jsds_SyncFilter (current, current->filterObject);
/* SyncFilter failure would be bad, but what would we do about it? */
if (enumerator) {
nsresult rv = enumerator->EnumerateFilter (current->filterObject);
if (NS_FAILED(rv))
return rv;
}
current = reinterpret_cast<FilterRecord *>
(PR_NEXT_LINK (&current->links));
} while (current != gFilters);
return NS_OK;
}
NS_IMETHODIMP
jsdService::RefreshFilters ()
{
return EnumerateFilters(nsnull);
}
NS_IMETHODIMP
jsdService::ClearFilters ()
{
if (!gFilters)
return NS_OK;
FilterRecord *current = reinterpret_cast<FilterRecord *>
(PR_NEXT_LINK (&gFilters->links));
do {
FilterRecord *next = reinterpret_cast<FilterRecord *>
(PR_NEXT_LINK (&current->links));
PR_REMOVE_AND_INIT_LINK(&current->links);
jsds_FreeFilter(current);
current = next;
} while (current != gFilters);
jsds_FreeFilter(current);
gFilters = nsnull;
return NS_OK;
}
NS_IMETHODIMP
jsdService::ClearAllBreakpoints (void)
{
ASSERT_VALID_CONTEXT;
JSD_LockScriptSubsystem(mCx);
JSD_ClearAllExecutionHooks (mCx);
JSD_UnlockScriptSubsystem(mCx);
return NS_OK;
}
NS_IMETHODIMP
jsdService::WrapValue(const JS::Value &value, jsdIValue **_rval)
{
ASSERT_VALID_CONTEXT;
JSDValue *jsdv = JSD_NewValue(mCx, value);
if (!jsdv)
return NS_ERROR_FAILURE;
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdService::EnterNestedEventLoop (jsdINestCallback *callback, PRUint32 *_rval)
{
// Nesting event queues is a thing of the past. Now, we just spin the
// current event loop.
nsresult rv;
nsCOMPtr<nsIJSContextStack>
stack(do_GetService("@mozilla.org/js/xpc/ContextStack;1", &rv));
if (NS_FAILED(rv))
return rv;
PRUint32 nestLevel = ++mNestedLoopLevel;
nsCOMPtr<nsIThread> thread = do_GetCurrentThread();
if (NS_SUCCEEDED(stack->Push(nsnull))) {
if (callback) {
DoPause(nsnull, true);
rv = callback->OnNest();
DoUnPause(nsnull, true);
}
while (NS_SUCCEEDED(rv) && mNestedLoopLevel >= nestLevel) {
if (!NS_ProcessNextEvent(thread))
rv = NS_ERROR_UNEXPECTED;
}
JSContext* cx;
stack->Pop(&cx);
NS_ASSERTION(cx == nsnull, "JSContextStack mismatch");
}
else
rv = NS_ERROR_FAILURE;
NS_ASSERTION (mNestedLoopLevel <= nestLevel,
"nested event didn't unwind properly");
if (mNestedLoopLevel == nestLevel)
--mNestedLoopLevel;
*_rval = mNestedLoopLevel;
return rv;
}
NS_IMETHODIMP
jsdService::ExitNestedEventLoop (PRUint32 *_rval)
{
if (mNestedLoopLevel > 0)
--mNestedLoopLevel;
else
return NS_ERROR_FAILURE;
*_rval = mNestedLoopLevel;
return NS_OK;
}
/* hook attribute get/set functions */
NS_IMETHODIMP
jsdService::SetErrorHook (jsdIErrorHook *aHook)
{
mErrorHook = aHook;
/* if the debugger isn't initialized, that's all we can do for now. The
* ActivateDebugger() method will do the rest when the coast is clear.
*/
if (!mCx || mPauseLevel)
return NS_OK;
if (aHook)
JSD_SetErrorReporter (mCx, jsds_ErrorHookProc, NULL);
else
JSD_SetErrorReporter (mCx, NULL, NULL);
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetErrorHook (jsdIErrorHook **aHook)
{
*aHook = mErrorHook;
NS_IF_ADDREF(*aHook);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SetBreakpointHook (jsdIExecutionHook *aHook)
{
mBreakpointHook = aHook;
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetBreakpointHook (jsdIExecutionHook **aHook)
{
*aHook = mBreakpointHook;
NS_IF_ADDREF(*aHook);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SetDebugHook (jsdIExecutionHook *aHook)
{
mDebugHook = aHook;
/* if the debugger isn't initialized, that's all we can do for now. The
* ActivateDebugger() method will do the rest when the coast is clear.
*/
if (!mCx || mPauseLevel)
return NS_OK;
if (aHook)
JSD_SetDebugBreakHook (mCx, jsds_ExecutionHookProc, NULL);
else
JSD_ClearDebugBreakHook (mCx);
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetDebugHook (jsdIExecutionHook **aHook)
{
*aHook = mDebugHook;
NS_IF_ADDREF(*aHook);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SetDebuggerHook (jsdIExecutionHook *aHook)
{
mDebuggerHook = aHook;
/* if the debugger isn't initialized, that's all we can do for now. The
* ActivateDebugger() method will do the rest when the coast is clear.
*/
if (!mCx || mPauseLevel)
return NS_OK;
if (aHook)
JSD_SetDebuggerHook (mCx, jsds_ExecutionHookProc, NULL);
else
JSD_ClearDebuggerHook (mCx);
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetDebuggerHook (jsdIExecutionHook **aHook)
{
*aHook = mDebuggerHook;
NS_IF_ADDREF(*aHook);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SetInterruptHook (jsdIExecutionHook *aHook)
{
mInterruptHook = aHook;
/* if the debugger isn't initialized, that's all we can do for now. The
* ActivateDebugger() method will do the rest when the coast is clear.
*/
if (!mCx || mPauseLevel)
return NS_OK;
if (aHook)
JSD_SetInterruptHook (mCx, jsds_ExecutionHookProc, NULL);
else
JSD_ClearInterruptHook (mCx);
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetInterruptHook (jsdIExecutionHook **aHook)
{
*aHook = mInterruptHook;
NS_IF_ADDREF(*aHook);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SetScriptHook (jsdIScriptHook *aHook)
{
mScriptHook = aHook;
/* if the debugger isn't initialized, that's all we can do for now. The
* ActivateDebugger() method will do the rest when the coast is clear.
*/
if (!mCx || mPauseLevel)
return NS_OK;
if (aHook)
JSD_SetScriptHook (mCx, jsds_ScriptHookProc, NULL);
/* we can't unset it if !aHook, because we still need to see script
* deletes in order to Release the jsdIScripts held in JSDScript
* private data. */
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetScriptHook (jsdIScriptHook **aHook)
{
*aHook = mScriptHook;
NS_IF_ADDREF(*aHook);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SetThrowHook (jsdIExecutionHook *aHook)
{
mThrowHook = aHook;
/* if the debugger isn't initialized, that's all we can do for now. The
* ActivateDebugger() method will do the rest when the coast is clear.
*/
if (!mCx || mPauseLevel)
return NS_OK;
if (aHook)
JSD_SetThrowHook (mCx, jsds_ExecutionHookProc, NULL);
else
JSD_ClearThrowHook (mCx);
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetThrowHook (jsdIExecutionHook **aHook)
{
*aHook = mThrowHook;
NS_IF_ADDREF(*aHook);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SetTopLevelHook (jsdICallHook *aHook)
{
mTopLevelHook = aHook;
/* if the debugger isn't initialized, that's all we can do for now. The
* ActivateDebugger() method will do the rest when the coast is clear.
*/
if (!mCx || mPauseLevel)
return NS_OK;
if (aHook)
JSD_SetTopLevelHook (mCx, jsds_CallHookProc, NULL);
else
JSD_ClearTopLevelHook (mCx);
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetTopLevelHook (jsdICallHook **aHook)
{
*aHook = mTopLevelHook;
NS_IF_ADDREF(*aHook);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SetFunctionHook (jsdICallHook *aHook)
{
mFunctionHook = aHook;
/* if the debugger isn't initialized, that's all we can do for now. The
* ActivateDebugger() method will do the rest when the coast is clear.
*/
if (!mCx || mPauseLevel)
return NS_OK;
if (aHook)
JSD_SetFunctionHook (mCx, jsds_CallHookProc, NULL);
else
JSD_ClearFunctionHook (mCx);
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetFunctionHook (jsdICallHook **aHook)
{
*aHook = mFunctionHook;
NS_IF_ADDREF(*aHook);
return NS_OK;
}
/* virtual */
jsdService::~jsdService()
{
ClearFilters();
mErrorHook = nsnull;
mBreakpointHook = nsnull;
mDebugHook = nsnull;
mDebuggerHook = nsnull;
mInterruptHook = nsnull;
mScriptHook = nsnull;
mThrowHook = nsnull;
mTopLevelHook = nsnull;
mFunctionHook = nsnull;
gGCRunning = false;
Off();
gJsds = nsnull;
}
jsdService *
jsdService::GetService ()
{
if (!gJsds)
gJsds = new jsdService();
NS_IF_ADDREF(gJsds);
return gJsds;
}
NS_GENERIC_FACTORY_SINGLETON_CONSTRUCTOR(jsdService, jsdService::GetService)
/* app-start observer. turns on the debugger at app-start. this is inserted
* and/or removed from the app-start category by the jsdService::initAtStartup
* property.
*/
class jsdASObserver : public nsIObserver
{
public:
NS_DECL_ISUPPORTS
NS_DECL_NSIOBSERVER
jsdASObserver () {}
};
NS_IMPL_THREADSAFE_ISUPPORTS1(jsdASObserver, nsIObserver)
NS_IMETHODIMP
jsdASObserver::Observe (nsISupports *aSubject, const char *aTopic,
const PRUnichar *aData)
{
nsresult rv;
// Hmm. Why is the app-startup observer called multiple times?
//NS_ASSERTION(!gJsds, "app startup observer called twice");
nsCOMPtr<jsdIDebuggerService> jsds = do_GetService(jsdServiceCtrID, &rv);
if (NS_FAILED(rv))
return rv;
bool on;
rv = jsds->GetIsOn(&on);
if (NS_FAILED(rv) || on)
return rv;
nsCOMPtr<nsIJSRuntimeService> rts = do_GetService(NS_JSRT_CTRID, &rv);
if (NS_FAILED(rv))
return rv;
JSRuntime *rt;
rts->GetRuntime (&rt);
if (NS_FAILED(rv))
return rv;
rv = jsds->ActivateDebugger(rt);
if (NS_FAILED(rv))
return rv;
return NS_OK;
}
NS_GENERIC_FACTORY_CONSTRUCTOR(jsdASObserver)
NS_DEFINE_NAMED_CID(JSDSERVICE_CID);
NS_DEFINE_NAMED_CID(JSDASO_CID);
static const mozilla::Module::CIDEntry kJSDCIDs[] = {
{ &kJSDSERVICE_CID, false, NULL, jsdServiceConstructor },
{ &kJSDASO_CID, false, NULL, jsdASObserverConstructor },
{ NULL }
};
static const mozilla::Module::ContractIDEntry kJSDContracts[] = {
{ jsdServiceCtrID, &kJSDSERVICE_CID },
{ jsdARObserverCtrID, &kJSDASO_CID },
{ NULL }
};
static const mozilla::Module kJSDModule = {
mozilla::Module::kVersion,
kJSDCIDs,
kJSDContracts
};
NSMODULE_DEFN(JavaScript_Debugger) = &kJSDModule;
/********************************************************************************
********************************************************************************
* graveyard
*/
#if 0
/* Thread States */
NS_IMPL_THREADSAFE_ISUPPORTS1(jsdThreadState, jsdIThreadState);
NS_IMETHODIMP
jsdThreadState::GetJSDContext(JSDContext **_rval)
{
*_rval = mCx;
return NS_OK;
}
NS_IMETHODIMP
jsdThreadState::GetJSDThreadState(JSDThreadState **_rval)
{
*_rval = mThreadState;
return NS_OK;
}
NS_IMETHODIMP
jsdThreadState::GetFrameCount (PRUint32 *_rval)
{
*_rval = JSD_GetCountOfStackFrames (mCx, mThreadState);
return NS_OK;
}
NS_IMETHODIMP
jsdThreadState::GetTopFrame (jsdIStackFrame **_rval)
{
JSDStackFrameInfo *sfi = JSD_GetStackFrame (mCx, mThreadState);
*_rval = jsdStackFrame::FromPtr (mCx, mThreadState, sfi);
return NS_OK;
}
NS_IMETHODIMP
jsdThreadState::GetPendingException(jsdIValue **_rval)
{
JSDValue *jsdv = JSD_GetException (mCx, mThreadState);
*_rval = jsdValue::FromPtr (mCx, jsdv);
return NS_OK;
}
NS_IMETHODIMP
jsdThreadState::SetPendingException(jsdIValue *aException)
{
JSDValue *jsdv;
nsresult rv = aException->GetJSDValue (&jsdv);
if (NS_FAILED(rv))
return NS_ERROR_FAILURE;
if (!JSD_SetException (mCx, mThreadState, jsdv))
return NS_ERROR_FAILURE;
return NS_OK;
}
#endif
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