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https://github.com/encounter/dawn-cmake.git
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41e4d9a34c
This CL updates the clang format files to have a single shared format between Dawn and Tint. The major changes are tabs are 4 spaces, lines are 100 columns and namespaces are not indented. Bug: dawn:1339 Change-Id: I4208742c95643998d9fd14e77a9cc558071ded39 Reviewed-on: https://dawn-review.googlesource.com/c/dawn/+/87603 Commit-Queue: Dan Sinclair <dsinclair@chromium.org> Reviewed-by: Corentin Wallez <cwallez@chromium.org> Kokoro: Kokoro <noreply+kokoro@google.com>
75 lines
2.2 KiB
C++
75 lines
2.2 KiB
C++
// Copyright 2020 The Dawn Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#ifndef SRC_DAWN_NATIVE_ENUMMASKITERATOR_H_
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#define SRC_DAWN_NATIVE_ENUMMASKITERATOR_H_
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#include "dawn/common/BitSetIterator.h"
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#include "dawn/native/EnumClassBitmasks.h"
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namespace dawn::native {
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template <typename T>
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class EnumMaskIterator final {
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static constexpr size_t N = EnumBitmaskSize<T>::value;
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static_assert(N > 0);
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using U = std::underlying_type_t<T>;
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public:
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explicit EnumMaskIterator(const T& mask)
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: mBitSetIterator(std::bitset<N>(static_cast<U>(mask))) {
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// If you hit this ASSERT it means that you forgot to update EnumBitmaskSize<T>::value;
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ASSERT(U(mask) == 0 || Log2(uint64_t(U(mask))) < N);
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}
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class Iterator final {
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public:
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explicit Iterator(const typename BitSetIterator<N, U>::Iterator& iter) : mIter(iter) {}
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Iterator& operator++() {
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++mIter;
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return *this;
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}
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bool operator==(const Iterator& other) const { return mIter == other.mIter; }
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bool operator!=(const Iterator& other) const { return mIter != other.mIter; }
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T operator*() const {
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U value = *mIter;
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return static_cast<T>(U(1) << value);
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}
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private:
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typename BitSetIterator<N, U>::Iterator mIter;
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};
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Iterator begin() const { return Iterator(mBitSetIterator.begin()); }
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Iterator end() const { return Iterator(mBitSetIterator.end()); }
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private:
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BitSetIterator<N, U> mBitSetIterator;
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};
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template <typename T>
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EnumMaskIterator<T> IterateEnumMask(const T& mask) {
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return EnumMaskIterator<T>(mask);
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}
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} // namespace dawn::native
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#endif // SRC_DAWN_NATIVE_ENUMMASKITERATOR_H_
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