1 | //===- FDRLogBuilder.h - XRay FDR Log Building Utility --------------------===// |
2 | // |
3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
4 | // See https://llvm.org/LICENSE.txt for license information. |
5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
6 | // |
7 | //===----------------------------------------------------------------------===// |
8 | #ifndef LLVM_XRAY_FDRLOGBUILDER_H |
9 | #define LLVM_XRAY_FDRLOGBUILDER_H |
10 | |
11 | #include "llvm/XRay/FDRRecords.h" |
12 | |
13 | namespace llvm { |
14 | namespace xray { |
15 | |
16 | /// The LogBuilder class allows for creating ad-hoc collections of records |
17 | /// through the `add<...>(...)` function. An example use of this API is in |
18 | /// crafting arbitrary sequences of records: |
19 | /// |
20 | /// auto Records = LogBuilder() |
21 | /// .add<BufferExtents>(256) |
22 | /// .add<NewBufferRecord>(1) |
23 | /// .consume(); |
24 | /// |
25 | class LogBuilder { |
26 | std::vector<std::unique_ptr<Record>> Records; |
27 | |
28 | public: |
29 | template <class R, class... T> LogBuilder &add(T &&... A) { |
30 | Records.emplace_back(new R(std::forward<T>(A)...)); |
31 | return *this; |
32 | } |
33 | |
34 | std::vector<std::unique_ptr<Record>> consume() { return std::move(Records); } |
35 | }; |
36 | |
37 | } // namespace xray |
38 | } // namespace llvm |
39 | |
40 | #endif // LLVM_XRAY_FDRLOGBUILDER_H |
41 | |