bf3516e81e
In modern C++, static constexpr member variables are automatically inline (aka weak) so the template trick is not needed. This also avoid duplication and reduces the amount of parsed code. No impact on generated binary (actually: smaller debuginfo, close to identical binary). Differential Revision: https://phabricator.services.mozilla.com/D247825
79 lines
2.8 KiB
C++
79 lines
2.8 KiB
C++
/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* vim: set ts=8 sts=2 et sw=2 tw=80: */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#ifndef nsIScriptGlobalObject_h__
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#define nsIScriptGlobalObject_h__
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#include "nsISupports.h"
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#include "nsIGlobalObject.h"
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#include "js/TypeDecls.h"
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#include "mozilla/EventForwards.h"
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class nsIScriptContext;
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class nsIScriptGlobalObject;
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namespace mozilla::dom {
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struct ErrorEventInit;
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} // namespace mozilla::dom
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// A helper function for nsIScriptGlobalObject implementations to use
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// when handling a script error. Generally called by the global when a context
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// notifies it of an error via nsIScriptGlobalObject::HandleScriptError.
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// Returns true if HandleDOMEvent was actually called, in which case
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// aStatus will be filled in with the status.
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// TODO: Convert this to MOZ_CAN_RUN_SCRIPT (bug 1415230)
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MOZ_CAN_RUN_SCRIPT_BOUNDARY bool NS_HandleScriptError(
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nsIScriptGlobalObject* aScriptGlobal,
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const mozilla::dom::ErrorEventInit& aErrorEvent, nsEventStatus* aStatus);
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// Must be kept in sync with xpcom/rust/xpcom/src/interfaces/nonidl.rs
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#define NS_ISCRIPTGLOBALOBJECT_IID \
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{0x876f83bd, 0x6314, 0x460a, {0xa0, 0x45, 0x1c, 0x8f, 0x46, 0x2f, 0xb8, 0xe1}}
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/**
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* The global object which keeps a script context for each supported script
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* language. This often used to store per-window global state.
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* This is a heavyweight interface implemented only by DOM globals, and
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* it might go away some time in the future.
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*/
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class nsIScriptGlobalObject : public nsIGlobalObject {
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public:
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NS_INLINE_DECL_STATIC_IID(NS_ISCRIPTGLOBALOBJECT_IID)
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/**
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* Ensure that the script global object is initialized for working with the
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* specified script language ID. This will set up the nsIScriptContext
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* and 'script global' for that language, allowing these to be fetched
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* and manipulated.
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* @return NS_OK if successful; error conditions include that the language
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* has not been registered, as well as 'normal' errors, such as
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* out-of-memory
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*/
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virtual nsresult EnsureScriptEnvironment() = 0;
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/**
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* Get a script context (WITHOUT added reference) for the specified language.
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*/
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virtual nsIScriptContext* GetScriptContext() = 0;
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nsIScriptContext* GetContext() { return GetScriptContext(); }
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/**
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* Handle a script error. Generally called by a script context.
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*/
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bool HandleScriptError(const mozilla::dom::ErrorEventInit& aErrorEventInit,
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nsEventStatus* aEventStatus) {
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return NS_HandleScriptError(this, aErrorEventInit, aEventStatus);
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}
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virtual bool IsBlackForCC(bool aTracingNeeded = true) { return false; }
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protected:
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virtual ~nsIScriptGlobalObject() = default;
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};
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#endif
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