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70 lines
1.9 KiB
C++
70 lines
1.9 KiB
C++
// Copyright 2022 The Abseil 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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// https://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 ABSL_STRINGS_INTERNAL_STRINGIFY_SINK_H_
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#define ABSL_STRINGS_INTERNAL_STRINGIFY_SINK_H_
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#include <array>
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#include <string>
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#include <type_traits>
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#include <utility>
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#include "absl/strings/numbers.h"
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#include "absl/strings/string_view.h"
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#include "absl/types/source_location.h"
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namespace absl {
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ABSL_NAMESPACE_BEGIN
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namespace strings_internal {
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class StringifySink {
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public:
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void Append(size_t count, char ch);
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void Append(string_view v);
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// Support `absl::Format(&sink, format, args...)`.
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friend void AbslFormatFlush(StringifySink* sink, absl::string_view v) {
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sink->Append(v);
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}
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private:
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template <typename T>
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friend string_view ExtractStringification(StringifySink& sink, const T& v);
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std::string buffer_;
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};
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template <typename T>
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string_view ExtractStringification(StringifySink& sink, const T& v) {
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AbslStringify(sink, v);
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return sink.buffer_;
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}
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} // namespace strings_internal
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template <typename Sink>
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void AbslStringify(Sink& sink, SourceLocation l) {
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sink.Append(l.file_name());
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sink.Append(":");
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std::array<char, numbers_internal::kFastToBufferSize> buffer;
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numbers_internal::FastIntToBuffer(l.line(), buffer.data());
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sink.Append(buffer.data());
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}
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ABSL_NAMESPACE_END
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} // namespace absl
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#endif // ABSL_STRINGS_INTERNAL_STRINGIFY_SINK_H_
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