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80 lines
2.7 KiB
80 lines
2.7 KiB
4 months ago
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// Copyright (c) 2015-2016 The Khronos Group Inc.
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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 SOURCE_DIAGNOSTIC_H_
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#define SOURCE_DIAGNOSTIC_H_
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#include <sstream>
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#include <string>
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#include "spirv-tools/libspirv.hpp"
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namespace spvtools {
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// A DiagnosticStream remembers the current position of the input and an error
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// code, and captures diagnostic messages via the left-shift operator.
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// If the error code is not SPV_FAILED_MATCH, then captured messages are
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// emitted during the destructor.
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class DiagnosticStream {
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public:
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DiagnosticStream(spv_position_t position, const MessageConsumer& consumer,
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const std::string& disassembled_instruction,
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spv_result_t error)
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: position_(position),
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consumer_(consumer),
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disassembled_instruction_(disassembled_instruction),
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error_(error) {}
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// Creates a DiagnosticStream from an expiring DiagnosticStream.
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// The new object takes the contents of the other, and prevents the
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// other from emitting anything during destruction.
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DiagnosticStream(DiagnosticStream&& other);
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// Destroys a DiagnosticStream.
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// If its status code is something other than SPV_FAILED_MATCH
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// then emit the accumulated message to the consumer.
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~DiagnosticStream();
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// Adds the given value to the diagnostic message to be written.
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template <typename T>
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DiagnosticStream& operator<<(const T& val) {
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stream_ << val;
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return *this;
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}
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// Conversion operator to spv_result, returning the error code.
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operator spv_result_t() { return error_; }
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private:
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std::ostringstream stream_;
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spv_position_t position_;
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MessageConsumer consumer_; // Message consumer callback.
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std::string disassembled_instruction_;
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spv_result_t error_;
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};
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// Changes the MessageConsumer in |context| to one that updates |diagnostic|
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// with the last message received.
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//
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// This function expects that |diagnostic| is not nullptr and its content is a
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// nullptr.
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void UseDiagnosticAsMessageConsumer(spv_context context,
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spv_diagnostic* diagnostic);
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std::string spvResultToString(spv_result_t res);
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} // namespace spvtools
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#endif // SOURCE_DIAGNOSTIC_H_
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