зеркало из https://github.com/mozilla/gecko-dev.git
92 строки
2.7 KiB
C++
92 строки
2.7 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 https://mozilla.org/MPL/2.0/. */
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#include "xptinfo.h"
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#include "nsISupports.h"
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#include "mozilla/dom/DOMJSClass.h"
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#include "mozilla/ArrayUtils.h"
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#include "jsfriendapi.h"
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#include "js/Symbol.h"
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using namespace mozilla;
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using namespace mozilla::dom;
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using namespace xpt::detail;
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////////////////////////////////////
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// Constant Lookup Helper Methods //
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////////////////////////////////////
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bool nsXPTInterfaceInfo::HasAncestor(const nsIID& aIID) const {
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for (const auto* info = this; info; info = info->GetParent()) {
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if (info->IID() == aIID) {
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return true;
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}
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}
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return false;
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}
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const nsXPTConstantInfo& nsXPTInterfaceInfo::Constant(uint16_t aIndex) const {
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MOZ_ASSERT(aIndex < ConstantCount());
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if (const nsXPTInterfaceInfo* pi = GetParent()) {
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if (aIndex < pi->ConstantCount()) {
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return pi->Constant(aIndex);
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}
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aIndex -= pi->ConstantCount();
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}
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return xpt::detail::GetConstant(mConsts + aIndex);
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}
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const nsXPTMethodInfo& nsXPTInterfaceInfo::Method(uint16_t aIndex) const {
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MOZ_ASSERT(aIndex < MethodCount());
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if (const nsXPTInterfaceInfo* pi = GetParent()) {
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if (aIndex < pi->MethodCount()) {
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return pi->Method(aIndex);
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}
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aIndex -= pi->MethodCount();
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}
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return xpt::detail::GetMethod(mMethods + aIndex);
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}
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nsresult nsXPTInterfaceInfo::GetMethodInfo(
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uint16_t aIndex, const nsXPTMethodInfo** aInfo) const {
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*aInfo = aIndex < MethodCount() ? &Method(aIndex) : nullptr;
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return *aInfo ? NS_OK : NS_ERROR_FAILURE;
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}
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nsresult nsXPTInterfaceInfo::GetConstant(uint16_t aIndex,
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JS::MutableHandleValue aConstant,
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char** aName) const {
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if (aIndex < ConstantCount()) {
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aConstant.set(Constant(aIndex).JSValue());
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*aName = moz_xstrdup(Constant(aIndex).Name());
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return NS_OK;
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}
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return NS_ERROR_FAILURE;
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}
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////////////////////////////////////
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// nsXPTMethodInfo symbol helpers //
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////////////////////////////////////
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void nsXPTMethodInfo::GetSymbolDescription(JSContext* aCx,
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nsACString& aID) const {
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JS::RootedSymbol symbol(aCx, GetSymbol(aCx));
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JSString* desc = JS::GetSymbolDescription(symbol);
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MOZ_ASSERT(JS_StringHasLatin1Chars(desc));
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JS::AutoAssertNoGC nogc(aCx);
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size_t length;
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const JS::Latin1Char* chars =
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JS_GetLatin1StringCharsAndLength(aCx, nogc, desc, &length);
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aID.AssignASCII(reinterpret_cast<const char*>(chars), length);
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}
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