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Diffstat (limited to 'dom/bindings/MozMap.h')
-rw-r--r-- | dom/bindings/MozMap.h | 121 |
1 files changed, 0 insertions, 121 deletions
diff --git a/dom/bindings/MozMap.h b/dom/bindings/MozMap.h deleted file mode 100644 index 1e920c098..000000000 --- a/dom/bindings/MozMap.h +++ /dev/null @@ -1,121 +0,0 @@ -/* -*- 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/. */ - -/** - * Class for representing MozMap arguments. This is an nsTHashtable - * under the hood, but we don't want to leak that implementation - * detail. - */ - -#ifndef mozilla_dom_MozMap_h -#define mozilla_dom_MozMap_h - -#include "nsTHashtable.h" -#include "nsHashKeys.h" -#include "nsStringGlue.h" -#include "nsTArray.h" -#include "mozilla/Attributes.h" -#include "mozilla/Move.h" - -namespace mozilla { -namespace dom { - -namespace binding_detail { -template<typename DataType> -class MozMapEntry : public nsStringHashKey -{ -public: - explicit MozMapEntry(const nsAString* aKeyTypePointer) - : nsStringHashKey(aKeyTypePointer) - { - } - - // Move constructor so we can do MozMaps of MozMaps. - MozMapEntry(MozMapEntry<DataType>&& aOther) - : nsStringHashKey(aOther), - mData(Move(aOther.mData)) - { - } - - DataType mData; -}; - -} // namespace binding_detail - -template<typename DataType> -class MozMap : protected nsTHashtable<binding_detail::MozMapEntry<DataType>> -{ -public: - typedef typename binding_detail::MozMapEntry<DataType> EntryType; - typedef nsTHashtable<EntryType> Base; - typedef MozMap<DataType> SelfType; - - MozMap() - { - } - - // Move constructor so we can do MozMap of MozMap. - MozMap(SelfType&& aOther) : - Base(Move(aOther)) - { - } - - // The return value is only safe to use until an AddEntry call. - const DataType& Get(const nsAString& aKey) const - { - const EntryType* ent = this->GetEntry(aKey); - MOZ_ASSERT(ent, "Why are you using a key we didn't claim to have?"); - return ent->mData; - } - - DataType& Get(const nsAString& aKey) - { - EntryType* ent = this->GetEntry(aKey); - MOZ_ASSERT(ent, "Why are you using a key we didn't claim to have?"); - return ent->mData; - } - - // The return value is only safe to use until an AddEntry call. - const DataType* GetIfExists(const nsAString& aKey) const - { - const EntryType* ent = this->GetEntry(aKey); - if (!ent) { - return nullptr; - } - return &ent->mData; - } - - void GetKeys(nsTArray<nsString>& aKeys) const { - for (auto iter = this->ConstIter(); !iter.Done(); iter.Next()) { - aKeys.AppendElement(iter.Get()->GetKey()); - } - } - - // XXXbz we expose this generic enumerator for tracing. Otherwise we'd end up - // with a dependency on BindingUtils.h here for the SequenceTracer bits. - typedef void (* Enumerator)(DataType* aValue, void* aClosure); - void EnumerateValues(Enumerator aEnumerator, void *aClosure) - { - for (auto iter = this->Iter(); !iter.Done(); iter.Next()) { - aEnumerator(&iter.Get()->mData, aClosure); - } - } - - MOZ_MUST_USE - DataType* AddEntry(const nsAString& aKey) - { - EntryType* ent = this->PutEntry(aKey, fallible); - if (!ent) { - return nullptr; - } - return &ent->mData; - } -}; - -} // namespace dom -} // namespace mozilla - -#endif // mozilla_dom_MozMap_h |