michael@0: /* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
michael@0: /* vim: set ts=8 sts=4 et sw=4 tw=99: */
michael@0: /* This Source Code Form is subject to the terms of the Mozilla Public
michael@0:  * License, v. 2.0. If a copy of the MPL was not distributed with this
michael@0:  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
michael@0: 
michael@0: /* private inline methods (#include'd by xpcprivate.h). */
michael@0: 
michael@0: #ifndef xpcinlines_h___
michael@0: #define xpcinlines_h___
michael@0: 
michael@0: #include <algorithm>
michael@0: 
michael@0: /***************************************************************************/
michael@0: 
michael@0: inline void
michael@0: XPCJSRuntime::AddVariantRoot(XPCTraceableVariant* variant)
michael@0: {
michael@0:     variant->AddToRootSet(&mVariantRoots);
michael@0: }
michael@0: 
michael@0: inline void
michael@0: XPCJSRuntime::AddWrappedJSRoot(nsXPCWrappedJS* wrappedJS)
michael@0: {
michael@0:     wrappedJS->AddToRootSet(&mWrappedJSRoots);
michael@0: }
michael@0: 
michael@0: inline void
michael@0: XPCJSRuntime::AddObjectHolderRoot(XPCJSObjectHolder* holder)
michael@0: {
michael@0:     holder->AddToRootSet(&mObjectHolderRoots);
michael@0: }
michael@0: 
michael@0: /***************************************************************************/
michael@0: 
michael@0: inline bool
michael@0: XPCCallContext::IsValid() const
michael@0: {
michael@0:     return mState != INIT_FAILED;
michael@0: }
michael@0: 
michael@0: inline XPCJSRuntime*
michael@0: XPCCallContext::GetRuntime() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_CONTEXT);
michael@0:     return mXPCContext->GetRuntime();
michael@0: }
michael@0: 
michael@0: inline XPCContext*
michael@0: XPCCallContext::GetXPCContext() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_CONTEXT);
michael@0:     return mXPCContext;
michael@0: }
michael@0: 
michael@0: inline JSContext*
michael@0: XPCCallContext::GetJSContext() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_CONTEXT);
michael@0:     return mJSContext;
michael@0: }
michael@0: 
michael@0: inline XPCContext::LangType
michael@0: XPCCallContext::GetCallerLanguage() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_CONTEXT);
michael@0:     return mCallerLanguage;
michael@0: }
michael@0: 
michael@0: inline XPCContext::LangType
michael@0: XPCCallContext::GetPrevCallerLanguage() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_CONTEXT);
michael@0:     return mPrevCallerLanguage;
michael@0: }
michael@0: 
michael@0: inline XPCCallContext*
michael@0: XPCCallContext::GetPrevCallContext() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_CONTEXT);
michael@0:     return mPrevCallContext;
michael@0: }
michael@0: 
michael@0: inline JSObject*
michael@0: XPCCallContext::GetFlattenedJSObject() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_OBJECT);
michael@0:     return mFlattenedJSObject;
michael@0: }
michael@0: 
michael@0: inline nsISupports*
michael@0: XPCCallContext::GetIdentityObject() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_OBJECT);
michael@0:     if (mWrapper)
michael@0:         return mWrapper->GetIdentityObject();
michael@0:     return mFlattenedJSObject ?
michael@0:            static_cast<nsISupports*>(xpc_GetJSPrivate(mFlattenedJSObject)) :
michael@0:            nullptr;
michael@0: }
michael@0: 
michael@0: inline XPCWrappedNative*
michael@0: XPCCallContext::GetWrapper() const
michael@0: {
michael@0:     if (mState == INIT_FAILED)
michael@0:         return nullptr;
michael@0: 
michael@0:     CHECK_STATE(HAVE_OBJECT);
michael@0:     return mWrapper;
michael@0: }
michael@0: 
michael@0: inline XPCWrappedNativeProto*
michael@0: XPCCallContext::GetProto() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_OBJECT);
michael@0:     return mWrapper ? mWrapper->GetProto() : nullptr;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCCallContext::CanGetTearOff() const
michael@0: {
michael@0:     return mState >= HAVE_OBJECT;
michael@0: }
michael@0: 
michael@0: inline XPCWrappedNativeTearOff*
michael@0: XPCCallContext::GetTearOff() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_OBJECT);
michael@0:     return mTearOff;
michael@0: }
michael@0: 
michael@0: inline XPCNativeScriptableInfo*
michael@0: XPCCallContext::GetScriptableInfo() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_OBJECT);
michael@0:     return mScriptableInfo;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCCallContext::CanGetSet() const
michael@0: {
michael@0:     return mState >= HAVE_NAME;
michael@0: }
michael@0: 
michael@0: inline XPCNativeSet*
michael@0: XPCCallContext::GetSet() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_NAME);
michael@0:     return mSet;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCCallContext::CanGetInterface() const
michael@0: {
michael@0:     return mState >= HAVE_NAME;
michael@0: }
michael@0: 
michael@0: inline XPCNativeInterface*
michael@0: XPCCallContext::GetInterface() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_NAME);
michael@0:     return mInterface;
michael@0: }
michael@0: 
michael@0: inline XPCNativeMember*
michael@0: XPCCallContext::GetMember() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_NAME);
michael@0:     return mMember;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCCallContext::HasInterfaceAndMember() const
michael@0: {
michael@0:     return mState >= HAVE_NAME && mInterface && mMember;
michael@0: }
michael@0: 
michael@0: inline jsid
michael@0: XPCCallContext::GetName() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_NAME);
michael@0:     return mName;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCCallContext::GetStaticMemberIsLocal() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_NAME);
michael@0:     return mStaticMemberIsLocal;
michael@0: }
michael@0: 
michael@0: inline unsigned
michael@0: XPCCallContext::GetArgc() const
michael@0: {
michael@0:     CHECK_STATE(READY_TO_CALL);
michael@0:     return mArgc;
michael@0: }
michael@0: 
michael@0: inline jsval*
michael@0: XPCCallContext::GetArgv() const
michael@0: {
michael@0:     CHECK_STATE(READY_TO_CALL);
michael@0:     return mArgv;
michael@0: }
michael@0: 
michael@0: inline jsval*
michael@0: XPCCallContext::GetRetVal() const
michael@0: {
michael@0:     CHECK_STATE(READY_TO_CALL);
michael@0:     return mRetVal;
michael@0: }
michael@0: 
michael@0: inline void
michael@0: XPCCallContext::SetRetVal(jsval val)
michael@0: {
michael@0:     CHECK_STATE(HAVE_ARGS);
michael@0:     if (mRetVal)
michael@0:         *mRetVal = val;
michael@0: }
michael@0: 
michael@0: inline jsid
michael@0: XPCCallContext::GetResolveName() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_CONTEXT);
michael@0:     return XPCJSRuntime::Get()->GetResolveName();
michael@0: }
michael@0: 
michael@0: inline jsid
michael@0: XPCCallContext::SetResolveName(JS::HandleId name)
michael@0: {
michael@0:     CHECK_STATE(HAVE_CONTEXT);
michael@0:     return XPCJSRuntime::Get()->SetResolveName(name);
michael@0: }
michael@0: 
michael@0: inline XPCWrappedNative*
michael@0: XPCCallContext::GetResolvingWrapper() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_OBJECT);
michael@0:     return XPCJSRuntime::Get()->GetResolvingWrapper();
michael@0: }
michael@0: 
michael@0: inline XPCWrappedNative*
michael@0: XPCCallContext::SetResolvingWrapper(XPCWrappedNative* w)
michael@0: {
michael@0:     CHECK_STATE(HAVE_OBJECT);
michael@0:     return XPCJSRuntime::Get()->SetResolvingWrapper(w);
michael@0: }
michael@0: 
michael@0: inline uint16_t
michael@0: XPCCallContext::GetMethodIndex() const
michael@0: {
michael@0:     CHECK_STATE(HAVE_OBJECT);
michael@0:     return mMethodIndex;
michael@0: }
michael@0: 
michael@0: inline void
michael@0: XPCCallContext::SetMethodIndex(uint16_t index)
michael@0: {
michael@0:     CHECK_STATE(HAVE_OBJECT);
michael@0:     mMethodIndex = index;
michael@0: }
michael@0: 
michael@0: /***************************************************************************/
michael@0: 
michael@0: inline const nsIID*
michael@0: XPCNativeInterface::GetIID() const
michael@0: {
michael@0:     const nsIID* iid;
michael@0:     return NS_SUCCEEDED(mInfo->GetIIDShared(&iid)) ? iid : nullptr;
michael@0: }
michael@0: 
michael@0: inline const char*
michael@0: XPCNativeInterface::GetNameString() const
michael@0: {
michael@0:     const char* name;
michael@0:     return NS_SUCCEEDED(mInfo->GetNameShared(&name)) ? name : nullptr;
michael@0: }
michael@0: 
michael@0: inline XPCNativeMember*
michael@0: XPCNativeInterface::FindMember(jsid name) const
michael@0: {
michael@0:     const XPCNativeMember* member = mMembers;
michael@0:     for (int i = (int) mMemberCount; i > 0; i--, member++)
michael@0:         if (member->GetName() == name)
michael@0:             return const_cast<XPCNativeMember*>(member);
michael@0:     return nullptr;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCNativeInterface::HasAncestor(const nsIID* iid) const
michael@0: {
michael@0:     bool found = false;
michael@0:     mInfo->HasAncestor(iid, &found);
michael@0:     return found;
michael@0: }
michael@0: 
michael@0: /***************************************************************************/
michael@0: 
michael@0: inline bool
michael@0: XPCNativeSet::FindMember(jsid name, XPCNativeMember** pMember,
michael@0:                          uint16_t* pInterfaceIndex) const
michael@0: {
michael@0:     XPCNativeInterface* const * iface;
michael@0:     int count = (int) mInterfaceCount;
michael@0:     int i;
michael@0: 
michael@0:     // look for interface names first
michael@0: 
michael@0:     for (i = 0, iface = mInterfaces; i < count; i++, iface++) {
michael@0:         if (name == (*iface)->GetName()) {
michael@0:             if (pMember)
michael@0:                 *pMember = nullptr;
michael@0:             if (pInterfaceIndex)
michael@0:                 *pInterfaceIndex = (uint16_t) i;
michael@0:             return true;
michael@0:         }
michael@0:     }
michael@0: 
michael@0:     // look for method names
michael@0:     for (i = 0, iface = mInterfaces; i < count; i++, iface++) {
michael@0:         XPCNativeMember* member = (*iface)->FindMember(name);
michael@0:         if (member) {
michael@0:             if (pMember)
michael@0:                 *pMember = member;
michael@0:             if (pInterfaceIndex)
michael@0:                 *pInterfaceIndex = (uint16_t) i;
michael@0:             return true;
michael@0:         }
michael@0:     }
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCNativeSet::FindMember(jsid name, XPCNativeMember** pMember,
michael@0:                          XPCNativeInterface** pInterface) const
michael@0: {
michael@0:     uint16_t index;
michael@0:     if (!FindMember(name, pMember, &index))
michael@0:         return false;
michael@0:     *pInterface = mInterfaces[index];
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCNativeSet::FindMember(jsid name,
michael@0:                          XPCNativeMember** pMember,
michael@0:                          XPCNativeInterface** pInterface,
michael@0:                          XPCNativeSet* protoSet,
michael@0:                          bool* pIsLocal) const
michael@0: {
michael@0:     XPCNativeMember* Member;
michael@0:     XPCNativeInterface* Interface;
michael@0:     XPCNativeMember* protoMember;
michael@0: 
michael@0:     if (!FindMember(name, &Member, &Interface))
michael@0:         return false;
michael@0: 
michael@0:     *pMember = Member;
michael@0:     *pInterface = Interface;
michael@0: 
michael@0:     *pIsLocal =
michael@0:         !Member ||
michael@0:         !protoSet ||
michael@0:         (protoSet != this &&
michael@0:          !protoSet->MatchesSetUpToInterface(this, Interface) &&
michael@0:          (!protoSet->FindMember(name, &protoMember, (uint16_t*)nullptr) ||
michael@0:           protoMember != Member));
michael@0: 
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: inline XPCNativeInterface*
michael@0: XPCNativeSet::FindNamedInterface(jsid name) const
michael@0: {
michael@0:     XPCNativeInterface* const * pp = mInterfaces;
michael@0: 
michael@0:     for (int i = (int) mInterfaceCount; i > 0; i--, pp++) {
michael@0:         XPCNativeInterface* iface = *pp;
michael@0: 
michael@0:         if (name == iface->GetName())
michael@0:             return iface;
michael@0:     }
michael@0:     return nullptr;
michael@0: }
michael@0: 
michael@0: inline XPCNativeInterface*
michael@0: XPCNativeSet::FindInterfaceWithIID(const nsIID& iid) const
michael@0: {
michael@0:     XPCNativeInterface* const * pp = mInterfaces;
michael@0: 
michael@0:     for (int i = (int) mInterfaceCount; i > 0; i--, pp++) {
michael@0:         XPCNativeInterface* iface = *pp;
michael@0: 
michael@0:         if (iface->GetIID()->Equals(iid))
michael@0:             return iface;
michael@0:     }
michael@0:     return nullptr;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCNativeSet::HasInterface(XPCNativeInterface* aInterface) const
michael@0: {
michael@0:     XPCNativeInterface* const * pp = mInterfaces;
michael@0: 
michael@0:     for (int i = (int) mInterfaceCount; i > 0; i--, pp++) {
michael@0:         if (aInterface == *pp)
michael@0:             return true;
michael@0:     }
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCNativeSet::HasInterfaceWithAncestor(XPCNativeInterface* aInterface) const
michael@0: {
michael@0:     return HasInterfaceWithAncestor(aInterface->GetIID());
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCNativeSet::HasInterfaceWithAncestor(const nsIID* iid) const
michael@0: {
michael@0:     // We can safely skip the first interface which is *always* nsISupports.
michael@0:     XPCNativeInterface* const * pp = mInterfaces+1;
michael@0:     for (int i = (int) mInterfaceCount; i > 1; i--, pp++)
michael@0:         if ((*pp)->HasAncestor(iid))
michael@0:             return true;
michael@0: 
michael@0:     // This is rare, so check last.
michael@0:     if (iid == &NS_GET_IID(nsISupports))
michael@0:         return true;
michael@0: 
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: inline bool
michael@0: XPCNativeSet::MatchesSetUpToInterface(const XPCNativeSet* other,
michael@0:                                       XPCNativeInterface* iface) const
michael@0: {
michael@0:     int count = std::min(int(mInterfaceCount), int(other->mInterfaceCount));
michael@0: 
michael@0:     XPCNativeInterface* const * pp1 = mInterfaces;
michael@0:     XPCNativeInterface* const * pp2 = other->mInterfaces;
michael@0: 
michael@0:     for (int i = (int) count; i > 0; i--, pp1++, pp2++) {
michael@0:         XPCNativeInterface* cur = (*pp1);
michael@0:         if (cur != (*pp2))
michael@0:             return false;
michael@0:         if (cur == iface)
michael@0:             return true;
michael@0:     }
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: inline void XPCNativeSet::Mark()
michael@0: {
michael@0:     if (IsMarked())
michael@0:         return;
michael@0: 
michael@0:     XPCNativeInterface* const * pp = mInterfaces;
michael@0: 
michael@0:     for (int i = (int) mInterfaceCount; i > 0; i--, pp++)
michael@0:         (*pp)->Mark();
michael@0: 
michael@0:     MarkSelfOnly();
michael@0: }
michael@0: 
michael@0: #ifdef DEBUG
michael@0: inline void XPCNativeSet::ASSERT_NotMarked()
michael@0: {
michael@0:     MOZ_ASSERT(!IsMarked(), "bad");
michael@0: 
michael@0:     XPCNativeInterface* const * pp = mInterfaces;
michael@0: 
michael@0:     for (int i = (int) mInterfaceCount; i > 0; i--, pp++)
michael@0:         MOZ_ASSERT(!(*pp)->IsMarked(), "bad");
michael@0: }
michael@0: #endif
michael@0: 
michael@0: /***************************************************************************/
michael@0: 
michael@0: inline
michael@0: JSObject* XPCWrappedNativeTearOff::GetJSObjectPreserveColor() const
michael@0: {
michael@0:     return reinterpret_cast<JSObject *>(reinterpret_cast<uintptr_t>(mJSObject) & ~1);
michael@0: }
michael@0: 
michael@0: inline
michael@0: JSObject* XPCWrappedNativeTearOff::GetJSObject()
michael@0: {
michael@0:     JSObject *obj = GetJSObjectPreserveColor();
michael@0:     if (obj) {
michael@0:       JS::ExposeObjectToActiveJS(obj);
michael@0:     }
michael@0:     return obj;
michael@0: }
michael@0: 
michael@0: inline
michael@0: void XPCWrappedNativeTearOff::SetJSObject(JSObject*  JSObj)
michael@0: {
michael@0:     MOZ_ASSERT(!IsMarked());
michael@0:     mJSObject = JSObj;
michael@0: }
michael@0: 
michael@0: inline
michael@0: XPCWrappedNativeTearOff::~XPCWrappedNativeTearOff()
michael@0: {
michael@0:     MOZ_ASSERT(!(GetInterface() || GetNative() || GetJSObjectPreserveColor()),
michael@0:                "tearoff not empty in dtor");
michael@0: }
michael@0: 
michael@0: /***************************************************************************/
michael@0: 
michael@0: inline bool
michael@0: XPCWrappedNative::HasInterfaceNoQI(const nsIID& iid)
michael@0: {
michael@0:     return nullptr != GetSet()->FindInterfaceWithIID(iid);
michael@0: }
michael@0: 
michael@0: inline void
michael@0: XPCWrappedNative::SweepTearOffs()
michael@0: {
michael@0:     XPCWrappedNativeTearOffChunk* chunk;
michael@0:     for (chunk = &mFirstChunk; chunk; chunk = chunk->mNextChunk) {
michael@0:         XPCWrappedNativeTearOff* to = chunk->mTearOffs;
michael@0:         for (int i = XPC_WRAPPED_NATIVE_TEAROFFS_PER_CHUNK; i > 0; i--, to++) {
michael@0:             bool marked = to->IsMarked();
michael@0:             to->Unmark();
michael@0:             if (marked)
michael@0:                 continue;
michael@0: 
michael@0:             // If this tearoff does not have a live dedicated JSObject,
michael@0:             // then let's recycle it.
michael@0:             if (!to->GetJSObjectPreserveColor()) {
michael@0:                 nsISupports* obj = to->GetNative();
michael@0:                 if (obj) {
michael@0:                     obj->Release();
michael@0:                     to->SetNative(nullptr);
michael@0:                 }
michael@0:                 to->SetInterface(nullptr);
michael@0:             }
michael@0:         }
michael@0:     }
michael@0: }
michael@0: 
michael@0: /***************************************************************************/
michael@0: 
michael@0: inline bool
michael@0: xpc_ForcePropertyResolve(JSContext* cx, JS::HandleObject obj, jsid idArg)
michael@0: {
michael@0:     JS::RootedValue prop(cx);
michael@0:     JS::RootedId id(cx, idArg);
michael@0: 
michael@0:     if (!JS_LookupPropertyById(cx, obj, id, &prop))
michael@0:         return false;
michael@0:     return true;
michael@0: }
michael@0: 
michael@0: inline jsid
michael@0: GetRTIdByIndex(JSContext *cx, unsigned index)
michael@0: {
michael@0:   XPCJSRuntime *rt = nsXPConnect::XPConnect()->GetRuntime();
michael@0:   return rt->GetStringID(index);
michael@0: }
michael@0: 
michael@0: inline
michael@0: bool ThrowBadParam(nsresult rv, unsigned paramNum, XPCCallContext& ccx)
michael@0: {
michael@0:     XPCThrower::ThrowBadParam(rv, paramNum, ccx);
michael@0:     return false;
michael@0: }
michael@0: 
michael@0: inline
michael@0: void ThrowBadResult(nsresult result, XPCCallContext& ccx)
michael@0: {
michael@0:     XPCThrower::ThrowBadResult(NS_ERROR_XPC_NATIVE_RETURNED_FAILURE,
michael@0:                                result, ccx);
michael@0: }
michael@0: 
michael@0: /***************************************************************************/
michael@0: 
michael@0: #endif /* xpcinlines_h___ */