mirror of
https://github.com/KhronosGroup/SPIRV-Tools
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bae8851111
Don't store the pointer, as the underlying storage could disappear. This a bit more flexible and robust.
103 lines
3.6 KiB
C++
103 lines
3.6 KiB
C++
// Copyright (c) 2015 The Khronos Group Inc.
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//
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// Permission is hereby granted, free of charge, to any person obtaining a
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// copy of this software and/or associated documentation files (the
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// "Materials"), to deal in the Materials without restriction, including
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// without limitation the rights to use, copy, modify, merge, publish,
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// distribute, sublicense, and/or sell copies of the Materials, and to
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// permit persons to whom the Materials are furnished to do so, subject to
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// the following conditions:
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//
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// The above copyright notice and this permission notice shall be included
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// in all copies or substantial portions of the Materials.
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//
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// MODIFICATIONS TO THIS FILE MAY MEAN IT NO LONGER ACCURATELY REFLECTS
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// KHRONOS STANDARDS. THE UNMODIFIED, NORMATIVE VERSIONS OF KHRONOS
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// SPECIFICATIONS AND HEADER INFORMATION ARE LOCATED AT
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// https://www.khronos.org/registry/
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//
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// THE MATERIALS ARE PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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// IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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// CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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// TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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// MATERIALS OR THE USE OR OTHER DEALINGS IN THE MATERIALS.
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#ifndef LIBSPIRV_DIAGNOSTIC_H_
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#define LIBSPIRV_DIAGNOSTIC_H_
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#include <libspirv/libspirv.h>
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#include <iostream>
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#include <sstream>
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#include <utility>
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class diagnostic_helper {
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public:
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diagnostic_helper(spv_position_t& position, spv_diagnostic* pDiagnostic)
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: position(&position), pDiagnostic(pDiagnostic) {}
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diagnostic_helper(spv_position position, spv_diagnostic* pDiagnostic)
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: position(position), pDiagnostic(pDiagnostic) {}
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~diagnostic_helper() {
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*pDiagnostic = spvDiagnosticCreate(position, stream.str().c_str());
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}
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std::stringstream stream;
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private:
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spv_position position;
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spv_diagnostic* pDiagnostic;
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};
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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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// TODO(awoloszyn): This is very similar to diagnostic_helper, and hides
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// the data more easily. Replace diagnostic_helper elsewhere
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// eventually.
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class DiagnosticStream {
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public:
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DiagnosticStream(spv_position_t position, spv_diagnostic* pDiagnostic,
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spv_result_t error)
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: position_(position), pDiagnostic_(pDiagnostic), error_(error) {}
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DiagnosticStream(DiagnosticStream&& other)
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: stream_(other.stream_.str()),
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position_(other.position_),
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pDiagnostic_(other.pDiagnostic_),
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error_(other.error_) {
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// The other object's destructor will emit the text in its stream_
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// member if its pDiagnostic_ member is non-null. Prevent that,
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// since emitting that text is now the responsibility of *this.
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other.pDiagnostic_ = nullptr;
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}
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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::stringstream stream_;
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spv_position_t position_;
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spv_diagnostic* pDiagnostic_;
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spv_result_t error_;
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};
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#define DIAGNOSTIC \
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diagnostic_helper helper(position, pDiagnostic); \
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helper.stream
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#endif // LIBSPIRV_DIAGNOSTIC_H_
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