63 lines
1.6 KiB
C++
63 lines
1.6 KiB
C++
/*
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* Copyright 2017 WebAssembly Community Group participants
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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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*/
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#ifndef WABT_RESULT_H_
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#define WABT_RESULT_H_
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namespace wabt {
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struct Result {
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enum Enum {
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Ok,
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Error,
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};
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Result() : Result(Ok) {}
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Result(Enum e) : enum_(e) {}
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operator Enum() const { return enum_; }
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Result& operator|=(Result rhs);
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private:
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Enum enum_;
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};
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inline Result operator|(Result lhs, Result rhs) {
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return (lhs == Result::Error || rhs == Result::Error) ? Result::Error
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: Result::Ok;
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}
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inline Result& Result::operator|=(Result rhs) {
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enum_ = *this | rhs;
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return *this;
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}
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inline bool Succeeded(Result result) {
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return result == Result::Ok;
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}
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inline bool Failed(Result result) {
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return result == Result::Error;
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}
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#define CHECK_RESULT(expr) \
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do { \
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if (Failed(expr)) { \
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return ::wabt::Result::Error; \
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} \
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} while (0)
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} // namespace wabt
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#endif // WABT_RESULT_H_
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