diff options
Diffstat (limited to 'dom/bindings')
| -rw-r--r-- | dom/bindings/BindingUtils.cpp | 8 | ||||
| -rw-r--r-- | dom/bindings/BindingUtils.h | 3 | ||||
| -rw-r--r-- | dom/bindings/Codegen.py | 15 | ||||
| -rw-r--r-- | dom/bindings/moz.build | 8 | ||||
| -rw-r--r-- | dom/bindings/nsIScriptError.idl | 135 | ||||
| -rw-r--r-- | dom/bindings/nsScriptError.cpp | 438 | ||||
| -rw-r--r-- | dom/bindings/nsScriptError.h | 109 | ||||
| -rw-r--r-- | dom/bindings/nsScriptErrorWithStack.cpp | 120 |
8 files changed, 815 insertions, 21 deletions
diff --git a/dom/bindings/BindingUtils.cpp b/dom/bindings/BindingUtils.cpp index 8d2bdaac6..a26fc4422 100644 --- a/dom/bindings/BindingUtils.cpp +++ b/dom/bindings/BindingUtils.cpp @@ -1184,14 +1184,6 @@ GetInterfaceImpl(JSContext* aCx, nsIInterfaceRequestor* aRequestor, } bool -UnforgeableValueOf(JSContext* cx, unsigned argc, JS::Value* vp) -{ - JS::CallArgs args = JS::CallArgsFromVp(argc, vp); - args.rval().set(args.thisv()); - return true; -} - -bool ThrowingConstructor(JSContext* cx, unsigned argc, JS::Value* vp) { return ThrowErrorMessage(cx, MSG_ILLEGAL_CONSTRUCTOR); diff --git a/dom/bindings/BindingUtils.h b/dom/bindings/BindingUtils.h index a3ec70f47..5cab835b3 100644 --- a/dom/bindings/BindingUtils.h +++ b/dom/bindings/BindingUtils.h @@ -2045,9 +2045,6 @@ GetInterface(JSContext* aCx, T* aThis, nsIJSID* aIID, } bool -UnforgeableValueOf(JSContext* cx, unsigned argc, JS::Value* vp); - -bool ThrowingConstructor(JSContext* cx, unsigned argc, JS::Value* vp); bool diff --git a/dom/bindings/Codegen.py b/dom/bindings/Codegen.py index 74acb5918..d7d700a96 100644 --- a/dom/bindings/Codegen.py +++ b/dom/bindings/Codegen.py @@ -2390,11 +2390,10 @@ class MethodDefiner(PropertyDefiner): # Synthesize our valueOf method self.regular.append({ "name": 'valueOf', - "nativeName": "UnforgeableValueOf", + "selfHostedName": "Object_valueOf", "methodInfo": False, "length": 0, - "flags": "JSPROP_ENUMERATE", # readonly/permanent added - # automatically. + "flags": "0", # readonly/permanent added automatically. "condition": MemberCondition() }) @@ -3456,19 +3455,15 @@ def InitUnforgeablePropertiesOnHolder(descriptor, properties, failureCode, "nsContentUtils::ThreadsafeIsCallerChrome()")) if descriptor.interface.getExtendedAttribute("Unforgeable"): - # We do our undefined toJSON and toPrimitive here, not as a regular - # property because we don't have a concept of value props anywhere in - # IDL. + # We do our undefined toPrimitive here, not as a regular property + # because we don't have a concept of value props anywhere in IDL. unforgeables.append(CGGeneric(fill( """ JS::RootedId toPrimitive(aCx, SYMBOL_TO_JSID(JS::GetWellKnownSymbol(aCx, JS::SymbolCode::toPrimitive))); if (!JS_DefinePropertyById(aCx, ${holderName}, toPrimitive, JS::UndefinedHandleValue, - JSPROP_READONLY | JSPROP_PERMANENT) || - !JS_DefineProperty(aCx, ${holderName}, "toJSON", - JS::UndefinedHandleValue, - JSPROP_READONLY | JSPROP_ENUMERATE | JSPROP_PERMANENT)) { + JSPROP_READONLY | JSPROP_PERMANENT)) { $*{failureCode} } """, diff --git a/dom/bindings/moz.build b/dom/bindings/moz.build index 043b3c494..ed8a4d37e 100644 --- a/dom/bindings/moz.build +++ b/dom/bindings/moz.build @@ -6,6 +6,12 @@ TEST_DIRS += ['test'] +XPIDL_SOURCES += [ + 'nsIScriptError.idl' +] + +XPIDL_MODULE = 'dom_bindings' + EXPORTS.ipc += [ 'ErrorIPCUtils.h', ] @@ -91,6 +97,8 @@ UNIFIED_SOURCES += [ 'DOMJSProxyHandler.cpp', 'Exceptions.cpp', 'IterableIterator.cpp', + 'nsScriptError.cpp', + 'nsScriptErrorWithStack.cpp', 'SimpleGlobalObject.cpp', 'ToJSValue.cpp', 'WebIDLGlobalNameHash.cpp', diff --git a/dom/bindings/nsIScriptError.idl b/dom/bindings/nsIScriptError.idl new file mode 100644 index 000000000..8436361a8 --- /dev/null +++ b/dom/bindings/nsIScriptError.idl @@ -0,0 +1,135 @@ +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */ +/* 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/. */ + +/* + * nsIConsoleMessage subclass for representing JavaScript errors and warnings. + */ + + +#include "nsISupports.idl" +#include "nsIArray.idl" +#include "nsIConsoleMessage.idl" + +%{C++ +#include "nsStringGlue.h" // for nsDependentCString +%} + +[scriptable, uuid(e8933fc9-c302-4e12-a55b-4f88611d9c6c)] +interface nsIScriptErrorNote : nsISupports +{ + readonly attribute AString errorMessage; + readonly attribute AString sourceName; + readonly attribute uint32_t lineNumber; + readonly attribute uint32_t columnNumber; + + AUTF8String toString(); +}; + +[scriptable, uuid(63eb4d3e-7d99-4150-b4f3-11314f9d82a9)] +interface nsIScriptError : nsIConsoleMessage +{ + /** pseudo-flag for default case */ + const unsigned long errorFlag = 0x0; + + /** message is warning */ + const unsigned long warningFlag = 0x1; + + /** exception was thrown for this case - exception-aware hosts can ignore */ + const unsigned long exceptionFlag = 0x2; + + // XXX check how strict is implemented these days. + /** error or warning is due to strict option */ + const unsigned long strictFlag = 0x4; + + /** just a log message */ + const unsigned long infoFlag = 0x8; + + /** + * The error message without any context/line number information. + * + * @note nsIConsoleMessage.message will return the error formatted + * with file/line information. + */ + readonly attribute AString errorMessage; + + readonly attribute AString sourceName; + readonly attribute AString sourceLine; + readonly attribute uint32_t lineNumber; + readonly attribute uint32_t columnNumber; + readonly attribute uint32_t flags; + + /** + * Categories I know about - + * XUL javascript + * content javascript (both of these from nsDocShell, currently) + * system javascript (errors in JS components and other system JS) + */ + readonly attribute string category; + + /* Get the window id this was initialized with. Zero will be + returned if init() was used instead of initWithWindowID(). */ + readonly attribute unsigned long long outerWindowID; + + /* Get the inner window id this was initialized with. Zero will be + returned if init() was used instead of initWithWindowID(). */ + readonly attribute unsigned long long innerWindowID; + + readonly attribute boolean isFromPrivateWindow; + + attribute jsval stack; + + /** + * The name of a template string, as found in js.msg, associated with the + * error message. + */ + attribute AString errorMessageName; + + readonly attribute nsIArray notes; + + void init(in AString message, + in AString sourceName, + in AString sourceLine, + in uint32_t lineNumber, + in uint32_t columnNumber, + in uint32_t flags, + in string category); + + /* This should be called instead of nsIScriptError.init to + initialize with a window id. The window id should be for the + inner window associated with this error. */ + void initWithWindowID(in AString message, + in AString sourceName, + in AString sourceLine, + in uint32_t lineNumber, + in uint32_t columnNumber, + in uint32_t flags, + in ACString category, + in unsigned long long innerWindowID); +%{C++ + // This overload allows passing a literal string for category. + template<uint32_t N> + nsresult InitWithWindowID(const nsAString& message, + const nsAString& sourceName, + const nsAString& sourceLine, + uint32_t lineNumber, + uint32_t columnNumber, + uint32_t flags, + const char (&c)[N], + uint64_t aInnerWindowID) + { + nsDependentCString category(c, N - 1); + return InitWithWindowID(message, sourceName, sourceLine, lineNumber, + columnNumber, flags, category, aInnerWindowID); + } +%} + +}; + +%{ C++ +#define NS_SCRIPTERROR_CID \ +{ 0x1950539a, 0x90f0, 0x4d22, { 0xb5, 0xaf, 0x71, 0x32, 0x9c, 0x68, 0xfa, 0x35 }} + +#define NS_SCRIPTERROR_CONTRACTID "@mozilla.org/scripterror;1" +%} diff --git a/dom/bindings/nsScriptError.cpp b/dom/bindings/nsScriptError.cpp new file mode 100644 index 000000000..9248d1a31 --- /dev/null +++ b/dom/bindings/nsScriptError.cpp @@ -0,0 +1,438 @@ +/* -*- 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/. */ + +/* + * nsIScriptError implementation. + */ + +#include "nsScriptError.h" +#include "jsprf.h" +#include "MainThreadUtils.h" +#include "mozilla/Assertions.h" +#include "nsGlobalWindow.h" +#include "nsNetUtil.h" +#include "nsPIDOMWindow.h" +#include "nsILoadContext.h" +#include "nsIDocShell.h" +#include "nsIMutableArray.h" +#include "nsIScriptError.h" +#include "nsISensitiveInfoHiddenURI.h" + +static_assert(nsIScriptError::errorFlag == JSREPORT_ERROR && + nsIScriptError::warningFlag == JSREPORT_WARNING && + nsIScriptError::exceptionFlag == JSREPORT_EXCEPTION && + nsIScriptError::strictFlag == JSREPORT_STRICT && + nsIScriptError::infoFlag == JSREPORT_USER_1, + "flags should be consistent"); + +nsScriptErrorBase::nsScriptErrorBase() + : mMessage(), + mMessageName(), + mSourceName(), + mLineNumber(0), + mSourceLine(), + mColumnNumber(0), + mFlags(0), + mCategory(), + mOuterWindowID(0), + mInnerWindowID(0), + mTimeStamp(0), + mInitializedOnMainThread(false), + mIsFromPrivateWindow(false) +{ +} + +nsScriptErrorBase::~nsScriptErrorBase() {} + +void +nsScriptErrorBase::AddNote(nsIScriptErrorNote* note) +{ + mNotes.AppendObject(note); +} + +void +nsScriptErrorBase::InitializeOnMainThread() +{ + MOZ_ASSERT(NS_IsMainThread()); + MOZ_ASSERT(!mInitializedOnMainThread); + + if (mInnerWindowID) { + nsGlobalWindow* window = + nsGlobalWindow::GetInnerWindowWithId(mInnerWindowID); + if (window) { + nsPIDOMWindowOuter* outer = window->GetOuterWindow(); + if (outer) + mOuterWindowID = outer->WindowID(); + + nsIDocShell* docShell = window->GetDocShell(); + nsCOMPtr<nsILoadContext> loadContext = do_QueryInterface(docShell); + + if (loadContext) { + // Never mark exceptions from chrome windows as having come from + // private windows, since we always want them to be reported. + nsIPrincipal* winPrincipal = window->GetPrincipal(); + mIsFromPrivateWindow = loadContext->UsePrivateBrowsing() && + !nsContentUtils::IsSystemPrincipal(winPrincipal); + } + } + } + + mInitializedOnMainThread = true; +} + +// nsIConsoleMessage methods +NS_IMETHODIMP +nsScriptErrorBase::GetMessageMoz(char16_t** result) { + nsresult rv; + + nsAutoCString message; + rv = ToString(message); + if (NS_FAILED(rv)) + return rv; + + *result = UTF8ToNewUnicode(message); + if (!*result) + return NS_ERROR_OUT_OF_MEMORY; + + return NS_OK; +} + + +NS_IMETHODIMP +nsScriptErrorBase::GetLogLevel(uint32_t* aLogLevel) +{ + if (mFlags & (uint32_t)nsIScriptError::infoFlag) { + *aLogLevel = nsIConsoleMessage::info; + } else if (mFlags & (uint32_t)nsIScriptError::warningFlag) { + *aLogLevel = nsIConsoleMessage::warn; + } else { + *aLogLevel = nsIConsoleMessage::error; + } + return NS_OK; +} + +// nsIScriptError methods +NS_IMETHODIMP +nsScriptErrorBase::GetErrorMessage(nsAString& aResult) { + aResult.Assign(mMessage); + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetSourceName(nsAString& aResult) { + aResult.Assign(mSourceName); + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetSourceLine(nsAString& aResult) { + aResult.Assign(mSourceLine); + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetLineNumber(uint32_t* result) { + *result = mLineNumber; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetColumnNumber(uint32_t* result) { + *result = mColumnNumber; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetFlags(uint32_t* result) { + *result = mFlags; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetCategory(char** result) { + *result = ToNewCString(mCategory); + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetStack(JS::MutableHandleValue aStack) { + aStack.setUndefined(); + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::SetStack(JS::HandleValue aStack) { + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetErrorMessageName(nsAString& aErrorMessageName) { + aErrorMessageName = mMessageName; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::SetErrorMessageName(const nsAString& aErrorMessageName) { + mMessageName = aErrorMessageName; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::Init(const nsAString& message, + const nsAString& sourceName, + const nsAString& sourceLine, + uint32_t lineNumber, + uint32_t columnNumber, + uint32_t flags, + const char* category) +{ + return InitWithWindowID(message, sourceName, sourceLine, lineNumber, + columnNumber, flags, + category ? nsDependentCString(category) + : EmptyCString(), + 0); +} + +static void +AssignSourceNameHelper(nsString& aSourceNameDest, const nsAString& aSourceNameSrc) +{ + if (aSourceNameSrc.IsEmpty()) + return; + + aSourceNameDest.Assign(aSourceNameSrc); + + nsCOMPtr<nsIURI> uri; + nsAutoCString pass; + if (NS_SUCCEEDED(NS_NewURI(getter_AddRefs(uri), aSourceNameSrc)) && + NS_SUCCEEDED(uri->GetPassword(pass)) && + !pass.IsEmpty()) + { + nsCOMPtr<nsISensitiveInfoHiddenURI> safeUri = do_QueryInterface(uri); + + nsAutoCString loc; + if (safeUri && NS_SUCCEEDED(safeUri->GetSensitiveInfoHiddenSpec(loc))) + aSourceNameDest.Assign(NS_ConvertUTF8toUTF16(loc)); + } +} + +NS_IMETHODIMP +nsScriptErrorBase::InitWithWindowID(const nsAString& message, + const nsAString& sourceName, + const nsAString& sourceLine, + uint32_t lineNumber, + uint32_t columnNumber, + uint32_t flags, + const nsACString& category, + uint64_t aInnerWindowID) +{ + mMessage.Assign(message); + AssignSourceNameHelper(mSourceName, sourceName); + mLineNumber = lineNumber; + mSourceLine.Assign(sourceLine); + mColumnNumber = columnNumber; + mFlags = flags; + mCategory = category; + mTimeStamp = JS_Now() / 1000; + mInnerWindowID = aInnerWindowID; + + if (aInnerWindowID && NS_IsMainThread()) { + InitializeOnMainThread(); + } + + return NS_OK; +} + +static nsresult +ToStringHelper(const char* aSeverity, const nsString& aMessage, + const nsString& aSourceName, const nsString* aSourceLine, + uint32_t aLineNumber, uint32_t aColumnNumber, + nsACString& /*UTF8*/ aResult) +{ + static const char format0[] = + "[%s: \"%s\" {file: \"%s\" line: %d column: %d source: \"%s\"}]"; + static const char format1[] = + "[%s: \"%s\" {file: \"%s\" line: %d}]"; + static const char format2[] = + "[%s: \"%s\"]"; + + char* temp; + char* tempMessage = nullptr; + char* tempSourceName = nullptr; + char* tempSourceLine = nullptr; + + if (!aMessage.IsEmpty()) + tempMessage = ToNewUTF8String(aMessage); + if (!aSourceName.IsEmpty()) + // Use at most 512 characters from mSourceName. + tempSourceName = ToNewUTF8String(StringHead(aSourceName, 512)); + if (aSourceLine && !aSourceLine->IsEmpty()) + // Use at most 512 characters from mSourceLine. + tempSourceLine = ToNewUTF8String(StringHead(*aSourceLine, 512)); + + if (nullptr != tempSourceName && nullptr != tempSourceLine) { + temp = JS_smprintf(format0, + aSeverity, + tempMessage, + tempSourceName, + aLineNumber, + aColumnNumber, + tempSourceLine); + } else if (!aSourceName.IsEmpty()) { + temp = JS_smprintf(format1, + aSeverity, + tempMessage, + tempSourceName, + aLineNumber); + } else { + temp = JS_smprintf(format2, + aSeverity, + tempMessage); + } + + if (nullptr != tempMessage) + free(tempMessage); + if (nullptr != tempSourceName) + free(tempSourceName); + if (nullptr != tempSourceLine) + free(tempSourceLine); + + if (!temp) + return NS_ERROR_OUT_OF_MEMORY; + + aResult.Assign(temp); + JS_smprintf_free(temp); + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::ToString(nsACString& /*UTF8*/ aResult) +{ + static const char error[] = "JavaScript Error"; + static const char warning[] = "JavaScript Warning"; + + const char* severity = !(mFlags & JSREPORT_WARNING) ? error : warning; + + return ToStringHelper(severity, mMessage, mSourceName, &mSourceLine, + mLineNumber, mColumnNumber, aResult); +} + +NS_IMETHODIMP +nsScriptErrorBase::GetOuterWindowID(uint64_t* aOuterWindowID) +{ + NS_WARNING_ASSERTION(NS_IsMainThread() || mInitializedOnMainThread, + "This can't be safely determined off the main thread, " + "returning an inaccurate value!"); + + if (!mInitializedOnMainThread && NS_IsMainThread()) { + InitializeOnMainThread(); + } + + *aOuterWindowID = mOuterWindowID; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetInnerWindowID(uint64_t* aInnerWindowID) +{ + *aInnerWindowID = mInnerWindowID; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetTimeStamp(int64_t* aTimeStamp) +{ + *aTimeStamp = mTimeStamp; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetIsFromPrivateWindow(bool* aIsFromPrivateWindow) +{ + NS_WARNING_ASSERTION(NS_IsMainThread() || mInitializedOnMainThread, + "This can't be safely determined off the main thread, " + "returning an inaccurate value!"); + + if (!mInitializedOnMainThread && NS_IsMainThread()) { + InitializeOnMainThread(); + } + + *aIsFromPrivateWindow = mIsFromPrivateWindow; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorBase::GetNotes(nsIArray** aNotes) +{ + nsresult rv = NS_OK; + nsCOMPtr<nsIMutableArray> array = + do_CreateInstance(NS_ARRAY_CONTRACTID, &rv); + NS_ENSURE_SUCCESS(rv, rv); + + uint32_t len = mNotes.Length(); + for (uint32_t i = 0; i < len; i++) + array->AppendElement(mNotes[i], false); + array.forget(aNotes); + + return NS_OK; +} + +NS_IMPL_ISUPPORTS(nsScriptError, nsIConsoleMessage, nsIScriptError) + +nsScriptErrorNote::nsScriptErrorNote() + : mMessage(), + mSourceName(), + mLineNumber(0), + mColumnNumber(0) +{ +} + +nsScriptErrorNote::~nsScriptErrorNote() {} + +void +nsScriptErrorNote::Init(const nsAString& message, + const nsAString& sourceName, + uint32_t lineNumber, + uint32_t columnNumber) +{ + mMessage.Assign(message); + AssignSourceNameHelper(mSourceName, sourceName); + mLineNumber = lineNumber; + mColumnNumber = columnNumber; +} + +// nsIScriptErrorNote methods +NS_IMETHODIMP +nsScriptErrorNote::GetErrorMessage(nsAString& aResult) { + aResult.Assign(mMessage); + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorNote::GetSourceName(nsAString& aResult) { + aResult.Assign(mSourceName); + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorNote::GetLineNumber(uint32_t* result) { + *result = mLineNumber; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorNote::GetColumnNumber(uint32_t* result) { + *result = mColumnNumber; + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorNote::ToString(nsACString& /*UTF8*/ aResult) +{ + return ToStringHelper("JavaScript Note", mMessage, mSourceName, nullptr, + mLineNumber, mColumnNumber, aResult); +} + +NS_IMPL_ISUPPORTS(nsScriptErrorNote, nsIScriptErrorNote) diff --git a/dom/bindings/nsScriptError.h b/dom/bindings/nsScriptError.h new file mode 100644 index 000000000..b8049d0a0 --- /dev/null +++ b/dom/bindings/nsScriptError.h @@ -0,0 +1,109 @@ +/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/* vim: set ts=8 sts=2 et sw=2 tw=80: */ +/* 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/. */ + +#ifndef mozilla_dom_nsScriptError_h +#define mozilla_dom_nsScriptError_h + +#include "mozilla/Atomics.h" + +#include <stdint.h> + +#include "jsapi.h" +#include "js/RootingAPI.h" + +#include "nsIScriptError.h" +#include "nsString.h" + +class nsScriptErrorNote final : public nsIScriptErrorNote { + public: + nsScriptErrorNote(); + + NS_DECL_THREADSAFE_ISUPPORTS + NS_DECL_NSISCRIPTERRORNOTE + + void Init(const nsAString& message, const nsAString& sourceName, + uint32_t lineNumber, uint32_t columnNumber); + + private: + virtual ~nsScriptErrorNote(); + + nsString mMessage; + nsString mSourceName; + nsString mSourceLine; + uint32_t mLineNumber; + uint32_t mColumnNumber; +}; + +// Definition of nsScriptError.. +class nsScriptErrorBase : public nsIScriptError { +public: + nsScriptErrorBase(); + + NS_DECL_NSICONSOLEMESSAGE + NS_DECL_NSISCRIPTERROR + + void AddNote(nsIScriptErrorNote* note); + +protected: + virtual ~nsScriptErrorBase(); + + void + InitializeOnMainThread(); + + nsCOMArray<nsIScriptErrorNote> mNotes; + nsString mMessage; + nsString mMessageName; + nsString mSourceName; + uint32_t mLineNumber; + nsString mSourceLine; + uint32_t mColumnNumber; + uint32_t mFlags; + nsCString mCategory; + // mOuterWindowID is set on the main thread from InitializeOnMainThread(). + uint64_t mOuterWindowID; + uint64_t mInnerWindowID; + int64_t mTimeStamp; + // mInitializedOnMainThread and mIsFromPrivateWindow are set on the main + // thread from InitializeOnMainThread(). + mozilla::Atomic<bool> mInitializedOnMainThread; + bool mIsFromPrivateWindow; +}; + +class nsScriptError final : public nsScriptErrorBase { +public: + nsScriptError() {} + NS_DECL_THREADSAFE_ISUPPORTS + +private: + virtual ~nsScriptError() {} +}; + +class nsScriptErrorWithStack : public nsScriptErrorBase { +public: + explicit nsScriptErrorWithStack(JS::HandleObject); + + NS_DECL_CYCLE_COLLECTING_ISUPPORTS + NS_DECL_CYCLE_COLLECTION_SCRIPT_HOLDER_CLASS(nsScriptErrorWithStack) + + NS_IMETHOD Init(const nsAString& message, + const nsAString& sourceName, + const nsAString& sourceLine, + uint32_t lineNumber, + uint32_t columnNumber, + uint32_t flags, + const char* category) override; + + NS_IMETHOD GetStack(JS::MutableHandleValue) override; + NS_IMETHOD ToString(nsACString& aResult) override; + +private: + virtual ~nsScriptErrorWithStack(); + // Complete stackframe where the error happened. + // Must be SavedFrame object. + JS::Heap<JSObject*> mStack; +}; + +#endif /* mozilla_dom_nsScriptError_h */ diff --git a/dom/bindings/nsScriptErrorWithStack.cpp b/dom/bindings/nsScriptErrorWithStack.cpp new file mode 100644 index 000000000..74c00999f --- /dev/null +++ b/dom/bindings/nsScriptErrorWithStack.cpp @@ -0,0 +1,120 @@ +/* -*- 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/. */ + +/* + * nsScriptErrorWithStack implementation. + * a main-thread-only, cycle-collected subclass of nsScriptErrorBase + * that can store a SavedFrame stack trace object. + */ + +#include "nsScriptError.h" +#include "MainThreadUtils.h" +#include "mozilla/Assertions.h" +#include "mozilla/dom/ScriptSettings.h" +#include "nsGlobalWindow.h" +#include "nsCycleCollectionParticipant.h" + +using namespace mozilla::dom; + +namespace { + +static nsCString +FormatStackString(JSContext* cx, HandleObject aStack) { + JS::RootedString formattedStack(cx); + + if (!JS::BuildStackString(cx, aStack, &formattedStack)) { + return nsCString(); + } + + nsAutoJSString stackJSString; + if (!stackJSString.init(cx, formattedStack)) { + return nsCString(); + } + + return NS_ConvertUTF16toUTF8(stackJSString.get()); +} + +} + + +NS_IMPL_CYCLE_COLLECTION_CLASS(nsScriptErrorWithStack) + +NS_IMPL_CYCLE_COLLECTION_UNLINK_BEGIN(nsScriptErrorWithStack) + tmp->mStack = nullptr; +NS_IMPL_CYCLE_COLLECTION_UNLINK_END + +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_BEGIN(nsScriptErrorWithStack) +NS_IMPL_CYCLE_COLLECTION_TRAVERSE_END + +NS_IMPL_CYCLE_COLLECTION_TRACE_BEGIN(nsScriptErrorWithStack) + NS_IMPL_CYCLE_COLLECTION_TRACE_JS_MEMBER_CALLBACK(mStack) +NS_IMPL_CYCLE_COLLECTION_TRACE_END + +NS_IMPL_CYCLE_COLLECTING_ADDREF(nsScriptErrorWithStack) +NS_IMPL_CYCLE_COLLECTING_RELEASE(nsScriptErrorWithStack) + +NS_INTERFACE_MAP_BEGIN_CYCLE_COLLECTION(nsScriptErrorWithStack) + NS_INTERFACE_MAP_ENTRY(nsISupports) + NS_INTERFACE_MAP_ENTRY(nsIConsoleMessage) + NS_INTERFACE_MAP_ENTRY(nsIScriptError) +NS_INTERFACE_MAP_END + +nsScriptErrorWithStack::nsScriptErrorWithStack(JS::HandleObject aStack) + : mStack(aStack) +{ + MOZ_ASSERT(NS_IsMainThread(), "You can't use this class on workers."); + mozilla::HoldJSObjects(this); +} + +nsScriptErrorWithStack::~nsScriptErrorWithStack() { + mozilla::DropJSObjects(this); +} + +NS_IMETHODIMP +nsScriptErrorWithStack::Init(const nsAString& message, + const nsAString& sourceName, + const nsAString& sourceLine, + uint32_t lineNumber, + uint32_t columnNumber, + uint32_t flags, + const char* category) +{ + MOZ_CRASH("nsScriptErrorWithStack requires to be initialized with a document, by using InitWithWindowID"); +} + +NS_IMETHODIMP +nsScriptErrorWithStack::GetStack(JS::MutableHandleValue aStack) { + aStack.setObjectOrNull(mStack); + return NS_OK; +} + +NS_IMETHODIMP +nsScriptErrorWithStack::ToString(nsACString& /*UTF8*/ aResult) +{ + MOZ_ASSERT(NS_IsMainThread()); + + nsCString message; + nsresult rv = nsScriptErrorBase::ToString(message); + NS_ENSURE_SUCCESS(rv, rv); + + if (!mStack) { + aResult.Assign(message); + return NS_OK; + } + + AutoJSAPI jsapi; + if (!jsapi.Init(mStack)) { + return NS_ERROR_FAILURE; + } + + JSContext* cx = jsapi.cx(); + RootedObject stack(cx, mStack); + nsCString stackString = FormatStackString(cx, stack); + nsCString combined = message + NS_LITERAL_CSTRING("\n") + stackString; + aResult.Assign(combined); + + return NS_OK; +} |