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gecko-dev/js/jsd/jsd_xpc.cpp

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/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* vim: set ts=8 sts=4 et sw=4 tw=99:
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
#include "jsfriendapi.h"
#include "jsd_xpc.h"
#include "xpcpublic.h"
#include "js/GCAPI.h"
#include "js/OldDebugAPI.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 "nsTArray.h"
#include "nsThreadUtils.h"
#include "nsMemory.h"
#include "jsdebug.h"
#include "nsReadableUtils.h"
#include "nsCRT.h"
#include "nsCycleCollectionParticipant.h"
#include "mozilla/Attributes.h"
/* XXX DOM dependency */
#include "nsIScriptContext.h"
#include "nsPIDOMWindow.h"
#include "nsDOMJSUtils.h"
#include "SandboxPrivate.h"
#include "nsJSPrincipals.h"
#include "nsContentUtils.h"
#include "mozilla/dom/ScriptSettings.h"
using mozilla::AutoSafeJSContext;
using mozilla::AutoPushJSContext;
using mozilla::dom::AutoSystemCaller;
/*
* 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
uint32_t gScriptCount = 0;
uint32_t gValueCount = 0;
uint32_t gPropertyCount = 0;
uint32_t gContextCount = 0;
uint32_t 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 = nullptr;
enum PatternType {
ptIgnore = 0U,
ptStartsWith = 1U,
ptEndsWith = 2U,
ptContains = 3U,
ptEquals = 4U
};
static struct FilterRecord {
PRCList links;
jsdIFilter *filterObject;
nsCString urlPattern;
PatternType patternType;
uint32_t startLine;
uint32_t endLine;
} *gFilters = nullptr;
static struct LiveEphemeral *gLiveValues = nullptr;
static struct LiveEphemeral *gLiveProperties = nullptr;
static struct LiveEphemeral *gLiveContexts = nullptr;
static struct LiveEphemeral *gLiveStackFrames = nullptr;
/*******************************************************************************
* utility functions for ephemeral lists
*******************************************************************************/
already_AddRefed<jsdIEphemeral>
jsds_FindEphemeral (LiveEphemeral **listHead, void *key)
{
if (!*listHead)
return nullptr;
LiveEphemeral *lv_record =
reinterpret_cast<LiveEphemeral *>
(PR_NEXT_LINK(&(*listHead)->links));
do
{
if (lv_record->key == key)
{
nsCOMPtr<jsdIEphemeral> ret = lv_record->value;
return ret.forget();
}
lv_record = reinterpret_cast<LiveEphemeral *>
(PR_NEXT_LINK(&lv_record->links));
}
while (lv_record != *listHead);
return nullptr;
}
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 = nullptr;
}
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");
uint32_t startLine;
nsresult rv = filter->GetStartLine(&startLine);
if (NS_FAILED(rv))
return false;
uint32_t endLine;
rv = filter->GetStartLine(&endLine);
if (NS_FAILED(rv))
return false;
nsAutoCString urlPattern;
rv = filter->GetUrlPattern (urlPattern);
if (NS_FAILED(rv))
return false;
uint32_t 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->startLine = startLine;
rec->endLine = endLine;
rec->urlPattern = urlPattern;
return true;
}
FilterRecord *
jsds_FindFilter (jsdIFilter *filter)
{
if (!gFilters)
return nullptr;
FilterRecord *current = gFilters;
do {
if (current->filterObject == filter)
return current;
current = reinterpret_cast<FilterRecord *>
(PR_NEXT_LINK(&current->links));
} while (current != gFilters);
return nullptr;
}
/* returns true if the hook should be executed. */
bool
jsds_FilterHook (JSDContext *jsdc, JSDThreadState *state)
{
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;
uint32_t currentLine = JSD_GetClosestLine (jsdc, script, pc);
uint32_t len = 0;
FilterRecord *currentFilter = gFilters;
do {
uint32_t 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 start line, or the start line is before
* or equal to the current */
if ((!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;
uint32_t 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(nullptr, true);
}
DeadScript *deadScripts = gDeadScripts;
gDeadScripts = nullptr;
while (deadScripts) {
DeadScript *ds = deadScripts;
/* get next deleted script */
deadScripts = reinterpret_cast<DeadScript *>
(PR_NEXT_LINK(&ds->links));
if (deadScripts == ds)
deadScripts = nullptr;
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(nullptr, 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)) {
JS::RootedValue jv(cx);
JS_GetPendingException(cx, &jv);
JSDValue *jsdv = JSD_NewValue (jsdc, jv);
val = dont_AddRef(jsdValue::FromPtr(jsdc, jsdv));
}
nsAutoCString fileName;
uint32_t line;
uint32_t pos;
uint32_t flags;
uint32_t 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(nullptr, true);
hook->OnError (nsDependentCString(message), fileName, line, pos, flags, errnum, val, &rval);
gJsds->DoUnPause(nullptr, true);
running = false;
if (!rval)
return JSD_ERROR_REPORTER_DEBUG;
return JSD_ERROR_REPORTER_PASS_ALONG;
}
static bool
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 true;
if (!jsds_FilterHook (jsdc, jsdthreadstate))
return false;
JSDStackFrameInfo *native_frame = JSD_GetStackFrame (jsdc, jsdthreadstate);
nsCOMPtr<jsdIStackFrame> frame =
dont_AddRef(jsdStackFrame::FromPtr(jsdc, jsdthreadstate, native_frame));
gJsds->DoPause(nullptr, true);
hook->OnCall(frame, type);
gJsds->DoUnPause(nullptr, true);
jsdStackFrame::InvalidateAll();
return true;
}
static uint32_t
jsds_ExecutionHookProc (JSDContext* jsdc, JSDThreadState* jsdthreadstate,
unsigned type, void* callerdata, jsval* rval)
{
nsCOMPtr<jsdIExecutionHook> hook(0);
uint32_t 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. */
uint32_t 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 = dont_AddRef(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 =
dont_AddRef(jsdStackFrame::FromPtr(jsdc, jsdthreadstate, native_frame));
gJsds->DoPause(nullptr, 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(nullptr, 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, bool creating,
void* callerdata)
{
#ifdef CAUTIOUS_SCRIPTHOOK
JSRuntime *rt = JS_GetRuntime(nsContentUtils::GetSafeJSContext());
#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 =
dont_AddRef(jsdScript::FromPtr(jsdc, jsdscript));
#ifdef CAUTIOUS_SCRIPTHOOK
JS_UNKEEP_ATOMS(rt);
#endif
gJsds->DoPause(nullptr, true);
hook->OnScriptCreated (script);
gJsds->DoUnPause(nullptr, 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(nullptr, true);
hook->OnScriptDestroyed (jsdis);
gJsds->DoUnPause(nullptr, 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_ISUPPORTS2(jsdContext, jsdIContext, jsdIEphemeral);
NS_IMETHODIMP
jsdContext::GetJSDContext(JSDContext **_rval)
{
*_rval = mCx;
return NS_OK;
}
*/
/* Objects */
NS_IMPL_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(uint32_t *_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(uint32_t *_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_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(uint32_t *_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;
}
/* Scripts */
NS_IMPL_ISUPPORTS2(jsdScript, jsdIScript, jsdIEphemeral)
static NS_IMETHODIMP
AssignToJSString(JSDContext *aCx, nsACString *x, JSString *str_)
{
if (!str_) {
x->SetLength(0);
return NS_OK;
}
JS::RootedString str(JSD_GetJSRuntime(aCx), str_);
AutoSafeJSContext cx;
JSAutoCompartment ac(cx, JSD_GetDefaultGlobal(aCx)); // Just in case.
size_t length = JS_GetStringEncodingLength(cx, str);
if (length == size_t(-1))
return NS_ERROR_FAILURE;
x->SetLength(uint32_t(length));
if (x->Length() != uint32_t(length))
return NS_ERROR_OUT_OF_MEMORY;
JS_EncodeStringToBuffer(cx, 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(mCx, 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()
{
AutoSafeJSContext cx;
JSAutoCompartment ac(cx, JSD_GetDefaultGlobal (mCx)); // Just in case.
JS::RootedObject obj(cx, JS_NewObject(cx, nullptr, JS::NullPtr(), JS::NullPtr()));
if (!obj)
return nullptr;
JS::RootedFunction fun(cx, JSD_GetJSFunction (mCx, mScript));
JS::RootedScript script(cx); /* In JSD compartment */
uint32_t baseLine;
JS::RootedString jsstr(cx);
size_t length;
const jschar *chars;
if (fun) {
unsigned nargs;
{
JSAutoCompartment ac(cx, JS_GetFunctionObject(fun));
nargs = JS_GetFunctionArgumentCount(cx, fun);
if (nargs > 12)
return nullptr;
jsstr = JS_DecompileFunctionBody (cx, fun, 4);
if (!jsstr)
return nullptr;
if (!(chars = JS_GetStringCharsAndLength(cx, jsstr, &length)))
return nullptr;
}
JS::Anchor<JSString *> kungFuDeathGrip(jsstr);
static const char *const argnames[] = {
"arg1", "arg2", "arg3", "arg4",
"arg5", "arg6", "arg7", "arg8",
"arg9", "arg10", "arg11", "arg12"
};
JS::CompileOptions options(cx);
options.setFileAndLine("x-jsd:ppbuffer?type=function", 3);
fun = JS_CompileUCFunction (cx, obj, "ppfun", nargs, argnames, chars,
length, options);
if (!fun || !(script = JS_GetFunctionScript(cx, fun)))
return nullptr;
baseLine = 3;
} else {
script = JSD_GetJSScript(mCx, mScript);
JSString *jsstr;
{
JSAutoCompartment ac(cx, script);
jsstr = JS_DecompileScript (cx, script, "ppscript", 4);
if (!jsstr)
return nullptr;
if (!(chars = JS_GetStringCharsAndLength(cx, jsstr, &length)))
return nullptr;
}
JS::Anchor<JSString *> kungFuDeathGrip(jsstr);
JS::CompileOptions options(cx);
options.setFileAndLine("x-jsd:ppbuffer?type=script", 1);
script = JS_CompileUCScript(cx, obj, chars, length, options);
if (!script)
return nullptr;
baseLine = 1;
}
uint32_t 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)));
uint32_t lineMapSize = 0;
if (lineMap) {
for (uint32_t 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;
}
uint32_t
jsdScript::PPPcToLine (uint32_t aPC)
{
if (!mPPLineMap && !CreatePPLineMap())
return 0;
uint32_t i;
for (i = 1; i < mPCMapSize; ++i) {
if (mPPLineMap[i].pc > aPC)
return mPPLineMap[i - 1].line;
}
return mPPLineMap[mPCMapSize - 1].line;
}
uint32_t
jsdScript::PPLineToPc (uint32_t aLine)
{
if (!mPPLineMap && !CreatePPLineMap())
return 0;
uint32_t 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 (int32_t *_rval)
{
ASSERT_VALID_EPHEMERAL;
AutoSafeJSContext cx;
JS::RootedScript script(cx, JSD_GetJSScript(mCx, mScript));
JSAutoCompartment ac(cx, script);
*_rval = static_cast<int32_t>(JS_GetScriptVersion(cx, script));
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetTag(uint32_t *_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, nullptr);
return NS_OK;
}
void
jsdScript::InvalidateAll ()
{
JSDContext *cx;
if (NS_FAILED(gJsds->GetJSDContext (&cx)))
return;
JSDScript *script;
JSDScript *iter = nullptr;
JSD_LockScriptSubsystem(cx);
while((script = JSD_IterateScripts(cx, &iter)) != nullptr) {
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(uint32_t flags)
{
ASSERT_VALID_EPHEMERAL;
JSD_SetScriptFlags(mCx, mScript, flags);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetFlags(uint32_t *_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(uint32_t* count, char16_t*** paramNames)
{
ASSERT_VALID_EPHEMERAL;
AutoSafeJSContext cx;
JS::RootedFunction fun(cx, JSD_GetJSFunction (mCx, mScript));
if (!fun) {
*count = 0;
*paramNames = nullptr;
return NS_OK;
}
JSAutoCompartment ac(cx, JS_GetFunctionObject(fun));
unsigned nargs;
if (!JS_FunctionHasLocalNames(cx, fun) ||
(nargs = JS_GetFunctionArgumentCount(cx, fun)) == 0) {
*count = 0;
*paramNames = nullptr;
return NS_OK;
}
char16_t **ret =
static_cast<char16_t**>(NS_Alloc(nargs * sizeof(char16_t*)));
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)
{
JS::RootedFunction fun(JSD_GetJSRuntime(mCx), JSD_GetJSFunction(mCx, mScript));
if (!fun)
return NS_ERROR_NOT_AVAILABLE;
AutoSafeJSContext jsContext;
JS::RootedObject obj(jsContext, 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;
AutoSafeJSContext cx_;
JSContext *cx = cx_; // Appease the type system with Maybe<>s below.
JS::RootedFunction fun(cx, JSD_GetJSFunction (mCx, mScript));
JSString *jsstr;
mozilla::Maybe<JSAutoCompartment> ac;
if (fun) {
ac.construct(cx, JS_GetFunctionObject(fun));
jsstr = JS_DecompileFunction (cx, fun, 4);
} else {
JS::RootedScript script(cx, JSD_GetJSScript (mCx, mScript));
ac.construct(cx, script);
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(uint32_t *_rval)
{
*_rval = mBaseLineNumber;
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetLineExtent(uint32_t *_rval)
{
*_rval = mLineExtent;
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetCallCount(uint32_t *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = JSD_GetScriptCallCount (mCx, mScript);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::GetMaxRecurseDepth(uint32_t *_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(uint32_t aPC, uint32_t aPcmap, uint32_t *_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(uint32_t aLine, uint32_t aPcmap, uint32_t *_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(uint32_t aPcmap, uint32_t aStartLine, uint32_t aMaxLines,
uint32_t* aCount, uint32_t** 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<uint32_t*>(NS_Alloc((end - start + 1) * sizeof(uint32_t)));
if (!JSD_GetLinePCs(mCx, mScript, aStartLine, aMaxLines, aCount, aExecutableLines,
nullptr))
return NS_ERROR_OUT_OF_MEMORY;
return NS_OK;
}
if (aPcmap == PCMAP_PRETTYPRINT) {
if (!mPPLineMap) {
if (!CreatePPLineMap())
return NS_ERROR_OUT_OF_MEMORY;
}
nsTArray<uint32_t> lines;
uint32_t 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<uint32_t*>(NS_Alloc(lines.Length() * sizeof(uint32_t)));
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(uint32_t aLine, uint32_t 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 (uint32_t 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(uint32_t aPC)
{
ASSERT_VALID_EPHEMERAL;
uintptr_t pc = mFirstPC + aPC;
JSD_SetExecutionHook (mCx, mScript, pc, jsds_ExecutionHookProc, nullptr);
return NS_OK;
}
NS_IMETHODIMP
jsdScript::ClearBreakpoint(uint32_t 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_ISUPPORTS2(jsdContext, jsdIContext, jsdIEphemeral)
jsdIContext *
jsdContext::FromPtr (JSDContext *aJSDCx, JSContext *aJSCx)
{
if (!aJSDCx || !aJSCx)
return nullptr;
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::ContextOptionsRef(aJSCx).privateIsNSISupports())
iscx = static_cast<nsISupports *>(JS_GetContextPrivate(aJSCx));
jsdicx = new jsdContext (aJSDCx, aJSCx, iscx);
}
jsdIContext *ctx = nullptr;
jsdicx.swap(ctx);
return ctx;
}
jsdContext::jsdContext (JSDContext *aJSDCx, JSContext *aJSCx,
nsISupports *aISCx) : mValid(true),
mScriptDisabledForWindowWithID(0),
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;
}
/* Simulate the old options API in terms of the new one for backwards
* compatibility */
#define JSOPTION_EXTRA_WARNINGS JS_BIT(0)
#define JSOPTION_WERROR JS_BIT(1)
#define JSOPTION_VAROBJFIX JS_BIT(2)
#define JSOPTION_PRIVATE_IS_NSISUPPORTS JS_BIT(3)
#define JSOPTION_DONT_REPORT_UNCAUGHT JS_BIT(8)
#define JSOPTION_NO_DEFAULT_COMPARTMENT_OBJECT JS_BIT(11)
#define JSOPTION_NO_SCRIPT_RVAL JS_BIT(12)
#define JSOPTION_STRICT_MODE JS_BIT(17)
#define JSOPTION_MASK JS_BITMASK(20)
NS_IMETHODIMP
jsdContext::GetOptions(uint32_t *_rval)
{
ASSERT_VALID_EPHEMERAL;
*_rval = (JS::ContextOptionsRef(mJSCx).extraWarnings() ? JSOPTION_EXTRA_WARNINGS : 0)
| (JS::ContextOptionsRef(mJSCx).werror() ? JSOPTION_WERROR : 0)
| (JS::ContextOptionsRef(mJSCx).varObjFix() ? JSOPTION_VAROBJFIX : 0)
| (JS::ContextOptionsRef(mJSCx).privateIsNSISupports() ? JSOPTION_PRIVATE_IS_NSISUPPORTS : 0)
| (JS::ContextOptionsRef(mJSCx).dontReportUncaught() ? JSOPTION_DONT_REPORT_UNCAUGHT : 0)
| (JS::ContextOptionsRef(mJSCx).noDefaultCompartmentObject() ? JSOPTION_NO_DEFAULT_COMPARTMENT_OBJECT : 0)
| (JS::ContextOptionsRef(mJSCx).noScriptRval() ? JSOPTION_NO_SCRIPT_RVAL : 0)
| (JS::ContextOptionsRef(mJSCx).strictMode() ? JSOPTION_STRICT_MODE : 0);
return NS_OK;
}
NS_IMETHODIMP
jsdContext::SetOptions(uint32_t options)
{
ASSERT_VALID_EPHEMERAL;
/* don't let users change this option, they'd just be shooting themselves
* in the foot. */
if (JS::ContextOptionsRef(mJSCx).privateIsNSISupports() !=
(options & JSOPTION_PRIVATE_IS_NSISUPPORTS))
return NS_ERROR_ILLEGAL_VALUE;
JS::ContextOptionsRef(mJSCx).setExtraWarnings(options & JSOPTION_EXTRA_WARNINGS)
.setWerror(options & JSOPTION_WERROR)
.setVarObjFix(options & JSOPTION_VAROBJFIX)
.setDontReportUncaught(options & JSOPTION_DONT_REPORT_UNCAUGHT)
.setNoDefaultCompartmentObject(options & JSOPTION_NO_DEFAULT_COMPARTMENT_OBJECT)
.setNoScriptRval(options & JSOPTION_NO_SCRIPT_RVAL)
.setStrictMode(options & JSOPTION_STRICT_MODE);
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetPrivateData(nsISupports **_rval)
{
ASSERT_VALID_EPHEMERAL;
if (JS::ContextOptionsRef(mJSCx).privateIsNSISupports())
{
*_rval = static_cast<nsISupports*>(JS_GetContextPrivate(mJSCx));
NS_IF_ADDREF(*_rval);
}
else
{
*_rval = nullptr;
}
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetWrappedContext(nsISupports **_rval)
{
ASSERT_VALID_EPHEMERAL;
NS_IF_ADDREF(*_rval = mISCx);
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetTag(uint32_t *_rval)
{
ASSERT_VALID_EPHEMERAL;
if (!mTag)
mTag = ++jsdContext::LastTag;
*_rval = mTag;
return NS_OK;
}
NS_IMETHODIMP
jsdContext::GetGlobalObject (jsdIValue **_rval)
{
ASSERT_VALID_EPHEMERAL;
JSObject *glob = GetDefaultScopeFromJSContext(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;
*_rval = IsScriptEnabled();
return NS_OK;
}
NS_IMETHODIMP
jsdContext::SetScriptsEnabled (bool _rval)
{
ASSERT_VALID_EPHEMERAL;
if (_rval == IsScriptEnabled())
return NS_OK;
nsCOMPtr<nsIScriptContext> scx = do_QueryInterface(mISCx);
NS_ENSURE_TRUE(scx && scx->GetWindowProxy(), NS_ERROR_NO_INTERFACE);
nsCOMPtr<nsPIDOMWindow> piWin = do_QueryInterface(scx->GetGlobalObject());
NS_ENSURE_TRUE(piWin, NS_ERROR_NO_INTERFACE);
uint64_t currentWindowID = piWin->WindowID();
if (_rval) {
if (mScriptDisabledForWindowWithID != currentWindowID) {
NS_WARNING("Please stop abusing JSD and fix your code!");
return NS_ERROR_UNEXPECTED;
}
xpc::Scriptability::Get(scx->GetWindowProxy()).Unblock();
piWin->ResumeTimeouts();
mScriptDisabledForWindowWithID = 0;
}
else {
piWin->SuspendTimeouts();
xpc::Scriptability::Get(scx->GetWindowProxy()).Block();
mScriptDisabledForWindowWithID = currentWindowID;
}
return NS_OK;
}
/* Stack Frames */
NS_IMPL_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 nullptr;
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(mCx, &_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(uint32_t *_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(uint32_t *_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,
uint32_t 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;
AutoPushJSContext cx(JSD_GetJSContext (mCx, mThreadState));
JS::RootedValue jv(cx);
estate = JS_SaveExceptionState (cx);
JS_ClearPendingException (cx);
*_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);
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_ISUPPORTS2(jsdValue, jsdIValue, jsdIEphemeral)
jsdIValue *
jsdValue::FromPtr (JSDContext *aCx, JSDValue *aValue)
{
/* value will be dropped by te jsdValue destructor. */
if (!aValue)
return nullptr;
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 (uint32_t *_rval)
{
ASSERT_VALID_EPHEMERAL;
JS::RootedValue val(JSD_GetJSRuntime(mCx), 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_PRIMITIVE(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(mCx, &_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(int32_t *_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;
AutoSafeJSContext cx;
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 (int32_t *_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, uint32_t *length)
{
ASSERT_VALID_EPHEMERAL;
*propArray = nullptr;
if (length)
*length = 0;
uint32_t 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);
uint32_t i = 0;
JSDProperty *iter = nullptr;
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;
AutoSafeJSContext cx;
JSAutoCompartment ac(cx, JSD_GetDefaultGlobal (mCx)); // Just in case.
/* 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::MutableHandle<JS::Value> aRetval)
{
ASSERT_VALID_EPHEMERAL;
aRetval.set(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_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(jsdService)
NS_INTERFACE_MAP_ENTRY(jsdIDebuggerService)
NS_INTERFACE_MAP_ENTRY_AMBIGUOUS(nsISupports, jsdIDebuggerService)
NS_INTERFACE_MAP_END
NS_IMPL_CYCLE_COLLECTION_10(jsdService,
mErrorHook, mBreakpointHook, mDebugHook,
mDebuggerHook, mInterruptHook, mScriptHook,
mThrowHook, mTopLevelHook, mFunctionHook,
mActivationCallback)
NS_IMPL_CYCLE_COLLECTING_ADDREF(jsdService)
NS_IMPL_CYCLE_COLLECTING_RELEASE(jsdService)
NS_IMETHODIMP
jsdService::GetJSDContext(JSDContext **_rval)
{
*_rval = mCx;
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetFlags (uint32_t *_rval)
{
ASSERT_VALID_CONTEXT;
*_rval = JSD_GetContextFlags (mCx);
return NS_OK;
}
NS_IMETHODIMP
jsdService::SetFlags (uint32_t 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(uint32_t *_rval)
{
*_rval = JSDS_MAJOR_VERSION;
return NS_OK;
}
NS_IMETHODIMP
jsdService::GetImplementationMinor(uint32_t *_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, nullptr, nullptr);
JSD_SetScriptHook (mCx, nullptr, nullptr);
JSD_ClearThrowHook (mCx);
JSD_ClearInterruptHook (mCx);
JSD_ClearDebuggerHook (mCx);
JSD_ClearDebugBreakHook (mCx);
JSD_ClearTopLevelHook (mCx);
JSD_ClearFunctionHook (mCx);
JSD_DebuggerOff (mCx);
mCx = nullptr;
mRuntime = nullptr;
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, nullptr, nullptr);
if (!mCx)
return NS_ERROR_FAILURE;
AutoSafeJSContext cx;
JS::RootedObject glob(cx, JSD_GetDefaultGlobal (mCx));
JSAutoCompartment ac(cx, glob);
/* 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, nullptr);
/* 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, nullptr);
if (mThrowHook)
JSD_SetThrowHook (mCx, jsds_ExecutionHookProc, nullptr);
/* 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, nullptr);
if (mDebuggerHook)
JSD_SetDebuggerHook (mCx, jsds_ExecutionHookProc, nullptr);
if (mDebugHook)
JSD_SetDebugBreakHook (mCx, jsds_ExecutionHookProc, nullptr);
if (mTopLevelHook)
JSD_SetTopLevelHook (mCx, jsds_CallHookProc, nullptr);
else
JSD_ClearTopLevelHook (mCx);
if (mFunctionHook)
JSD_SetFunctionHook (mCx, jsds_CallHookProc, nullptr);
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;
while (gDeadScripts)
jsds_NotifyPendingDeadScripts (JS_GetRuntime(nsContentUtils::GetSafeJSContext()));
}
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(uint32_t *_rval)
{
NS_ENSURE_ARG_POINTER(_rval);
*_rval = mPauseLevel;
return NS_OK;
}
NS_IMETHODIMP
jsdService::Pause(uint32_t *_rval)
{
return DoPause(_rval, false);
}
nsresult
jsdService::DoPause(uint32_t *_rval, bool internalCall)
{
if (!mCx)
return NS_ERROR_NOT_INITIALIZED;
if (++mPauseLevel == 1) {
JSD_SetErrorReporter (mCx, nullptr, nullptr);
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(uint32_t *_rval)
{
return DoUnPause(_rval, false);
}
nsresult
jsdService::DoUnPause(uint32_t *_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, nullptr);
if (mThrowHook)
JSD_SetThrowHook (mCx, jsds_ExecutionHookProc, nullptr);
if (mInterruptHook)
JSD_SetInterruptHook (mCx, jsds_ExecutionHookProc, nullptr);
if (mDebuggerHook)
JSD_SetDebuggerHook (mCx, jsds_ExecutionHookProc, nullptr);
if (mDebugHook)
JSD_SetDebugBreakHook (mCx, jsds_ExecutionHookProc, nullptr);
if (mTopLevelHook)
JSD_SetTopLevelHook (mCx, jsds_CallHookProc, nullptr);
else
JSD_ClearTopLevelHook (mCx);
if (mFunctionHook)
JSD_SetFunctionHook (mCx, jsds_CallHookProc, nullptr);
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 = nullptr;
JSContext *cx;
while ((cx = JS_ContextIterator (mRuntime, &iter)))
{
nsCOMPtr<jsdIContext> jsdicx =
dont_AddRef(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 = nullptr;
nsresult rv = NS_OK;
JSD_LockScriptSubsystem(mCx);
while((script = JSD_IterateScripts(mCx, &iter))) {
nsCOMPtr<jsdIScript> jsdis =
dont_AddRef(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 {
if (!JS_DumpHeap(JS_GetRuntime(nsContentUtils::GetSafeJSContext()),
file, nullptr, JSTRACE_OBJECT, nullptr, (size_t)-1, nullptr))
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 = nullptr;
}
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(nullptr);
}
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 = nullptr;
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(JS::Handle<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, uint32_t *_rval)
{
// Nesting event queues is a thing of the past. Now, we just spin the
// current event loop.
nsresult rv = NS_OK;
AutoSystemCaller asc;
uint32_t nestLevel = ++mNestedLoopLevel;
nsCOMPtr<nsIThread> thread = do_GetCurrentThread();
if (callback) {
DoPause(nullptr, true);
rv = callback->OnNest();
DoUnPause(nullptr, true);
}
while (NS_SUCCEEDED(rv) && mNestedLoopLevel >= nestLevel) {
if (!NS_ProcessNextEvent(thread))
rv = NS_ERROR_UNEXPECTED;
}
NS_ASSERTION (mNestedLoopLevel <= nestLevel,
"nested event didn't unwind properly");
if (mNestedLoopLevel == nestLevel)
--mNestedLoopLevel;
*_rval = mNestedLoopLevel;
return rv;
}
NS_IMETHODIMP
jsdService::ExitNestedEventLoop (uint32_t *_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, nullptr);
else
JSD_SetErrorReporter (mCx, nullptr, nullptr);
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, nullptr);
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, nullptr);
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, nullptr);
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, nullptr);
/* 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, nullptr);
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, nullptr);
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, nullptr);
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 = nullptr;
mBreakpointHook = nullptr;
mDebugHook = nullptr;
mDebuggerHook = nullptr;
mInterruptHook = nullptr;
mScriptHook = nullptr;
mThrowHook = nullptr;
mTopLevelHook = nullptr;
mFunctionHook = nullptr;
Off();
gJsds = nullptr;
}
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 MOZ_FINAL : public nsIObserver
{
public:
NS_DECL_THREADSAFE_ISUPPORTS
NS_DECL_NSIOBSERVER
jsdASObserver () {}
};
NS_IMPL_ISUPPORTS1(jsdASObserver, nsIObserver)
NS_IMETHODIMP
jsdASObserver::Observe (nsISupports *aSubject, const char *aTopic,
const char16_t *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, nullptr, jsdServiceConstructor },
{ &kJSDASO_CID, false, nullptr, jsdASObserverConstructor },
{ nullptr }
};
static const mozilla::Module::ContractIDEntry kJSDContracts[] = {
{ jsdServiceCtrID, &kJSDSERVICE_CID },
{ jsdARObserverCtrID, &kJSDASO_CID },
{ nullptr }
};
static const mozilla::Module kJSDModule = {
mozilla::Module::kVersion,
kJSDCIDs,
kJSDContracts
};
NSMODULE_DEFN(JavaScript_Debugger) = &kJSDModule;
void
global_finalize(JSFreeOp *aFop, JSObject *aObj)
{
nsIScriptObjectPrincipal *sop =
static_cast<nsIScriptObjectPrincipal *>(js::GetObjectPrivate(aObj));
MOZ_ASSERT(sop);
static_cast<SandboxPrivate *>(sop)->ForgetGlobalObject();
NS_IF_RELEASE(sop);
}
JSObject *
CreateJSDGlobal(JSContext *aCx, const JSClass *aClasp)
{
nsresult rv;
nsCOMPtr<nsIPrincipal> nullPrin = do_CreateInstance("@mozilla.org/nullprincipal;1", &rv);
NS_ENSURE_SUCCESS(rv, nullptr);
JSPrincipals *jsPrin = nsJSPrincipals::get(nullPrin);
JS::RootedObject global(aCx, JS_NewGlobalObject(aCx, aClasp, jsPrin, JS::DontFireOnNewGlobalHook));
NS_ENSURE_TRUE(global, nullptr);
// We have created a new global let's attach a private to it
// that implements nsIGlobalObject.
nsCOMPtr<nsIScriptObjectPrincipal> sbp =
new SandboxPrivate(nullPrin, global);
JS_SetPrivate(global, sbp.forget().get());
JS_FireOnNewGlobalObject(aCx, global);
return global;
}
/********************************************************************************
********************************************************************************
* graveyard
*/
#if 0
/* Thread States */
NS_IMPL_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 (uint32_t *_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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