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- // Copyright (c) 2015-2016 The Khronos Group Inc.
- //
- // Licensed under the Apache License, Version 2.0 (the "License");
- // you may not use this file except in compliance with the License.
- // You may obtain a copy of the License at
- //
- // http://www.apache.org/licenses/LICENSE-2.0
- //
- // Unless required by applicable law or agreed to in writing, software
- // distributed under the License is distributed on an "AS IS" BASIS,
- // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- // See the License for the specific language governing permissions and
- // limitations under the License.
- #ifndef SOURCE_DIAGNOSTIC_H_
- #define SOURCE_DIAGNOSTIC_H_
- #include <sstream>
- #include <string>
- #include "spirv-tools/libspirv.hpp"
- namespace spvtools {
- // A DiagnosticStream remembers the current position of the input and an error
- // code, and captures diagnostic messages via the left-shift operator.
- // If the error code is not SPV_FAILED_MATCH, then captured messages are
- // emitted during the destructor.
- class DiagnosticStream {
- public:
- DiagnosticStream(spv_position_t position, const MessageConsumer& consumer,
- const std::string& disassembled_instruction,
- spv_result_t error)
- : position_(position),
- consumer_(consumer),
- disassembled_instruction_(disassembled_instruction),
- error_(error) {}
- // Creates a DiagnosticStream from an expiring DiagnosticStream.
- // The new object takes the contents of the other, and prevents the
- // other from emitting anything during destruction.
- DiagnosticStream(DiagnosticStream&& other);
- // Destroys a DiagnosticStream.
- // If its status code is something other than SPV_FAILED_MATCH
- // then emit the accumulated message to the consumer.
- ~DiagnosticStream();
- // Adds the given value to the diagnostic message to be written.
- template <typename T>
- DiagnosticStream& operator<<(const T& val) {
- stream_ << val;
- return *this;
- }
- // Conversion operator to spv_result, returning the error code.
- operator spv_result_t() { return error_; }
- private:
- std::ostringstream stream_;
- spv_position_t position_;
- MessageConsumer consumer_; // Message consumer callback.
- std::string disassembled_instruction_;
- spv_result_t error_;
- };
- // Changes the MessageConsumer in |context| to one that updates |diagnostic|
- // with the last message received.
- //
- // This function expects that |diagnostic| is not nullptr and its content is a
- // nullptr.
- void UseDiagnosticAsMessageConsumer(spv_context context,
- spv_diagnostic* diagnostic);
- std::string spvResultToString(spv_result_t res);
- } // namespace spvtools
- #endif // SOURCE_DIAGNOSTIC_H_
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