gecko-dev/dom/bindings/Exceptions.h

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1.7 KiB
C++

/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* 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_Exceptions_h__
#define mozilla_dom_Exceptions_h__
// DOM exception throwing machinery (for both main thread and workers).
#include <stdint.h>
#include "jspubtd.h"
#include "nsIException.h"
class nsIStackFrame;
template <class T>
class already_AddRefed;
namespace mozilla {
namespace dom {
class Exception;
bool
Throw(JSContext* cx, nsresult rv, const char* sz = nullptr);
bool
ThrowExceptionObject(JSContext* aCx, Exception* aException);
bool
ThrowExceptionObject(JSContext* aCx, nsIException* aException);
// Create an exception object for the given nsresult and message but
// don't set it pending on aCx. This never returns null.
already_AddRefed<Exception>
CreateException(JSContext* aCx, nsresult aRv, const char* aMessage = nullptr);
already_AddRefed<nsIStackFrame>
GetCurrentJSStack();
// Internal stuff not intended to be widely used.
namespace exceptions {
// aMaxDepth can be used to define a maximal depth for the stack trace. If the
// value is -1, a default maximal depth will be selected.
already_AddRefed<nsIStackFrame>
CreateStack(JSContext* aCx, int32_t aMaxDepth = -1);
already_AddRefed<nsIStackFrame>
CreateStackFrameLocation(uint32_t aLanguage,
const char* aFilename,
const char* aFunctionName,
int32_t aLineNumber,
nsIStackFrame* aCaller);
} // namespace exceptions
} // namespace dom
} // namespace mozilla
#endif