| //===- FDRLogBuilder.h - XRay FDR Log Building Utility --------------------===// |
| // |
| // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| // See https://llvm.org/LICENSE.txt for license information. |
| // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| // |
| //===----------------------------------------------------------------------===// |
| #ifndef LLVM_INCLUDE_LLVM_XRAY_FDRLOGBUILDER_H_ |
| #define LLVM_INCLUDE_LLVM_XRAY_FDRLOGBUILDER_H_ |
| |
| #include "llvm/XRay/FDRRecords.h" |
| |
| namespace llvm { |
| namespace xray { |
| |
| /// The LogBuilder class allows for creating ad-hoc collections of records |
| /// through the `add<...>(...)` function. An example use of this API is in |
| /// crafting arbitrary sequences of records: |
| /// |
| /// auto Records = LogBuilder() |
| /// .add<BufferExtents>(256) |
| /// .add<NewBufferRecord>(1) |
| /// .consume(); |
| /// |
| class LogBuilder { |
| std::vector<std::unique_ptr<Record>> Records; |
| |
| public: |
| template <class R, class... T> LogBuilder &add(T &&... A) { |
| Records.emplace_back(new R(std::forward<T>(A)...)); |
| return *this; |
| } |
| |
| std::vector<std::unique_ptr<Record>> consume() { return std::move(Records); } |
| }; |
| |
| } // namespace xray |
| } // namespace llvm |
| |
| #endif // LLVM_INCLUDE_LLVM_XRAY_FDRLOGBUILDER_H_ |