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  1. //===- BlockPrinter.h - FDR Block Pretty Printer -------------------------===//
  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. //
  9. // An implementation of the RecordVisitor which formats a block of records for
  10. // easier human consumption.
  11. //
  12. //===----------------------------------------------------------------------===//
  13. #ifndef LLVM_XRAY_BLOCKPRINTER_H
  14. #define LLVM_XRAY_BLOCKPRINTER_H
  15.  
  16. #include "llvm/Support/raw_ostream.h"
  17. #include "llvm/XRay/FDRRecords.h"
  18. #include "llvm/XRay/RecordPrinter.h"
  19.  
  20. namespace llvm {
  21. namespace xray {
  22.  
  23. class BlockPrinter : public RecordVisitor {
  24.   enum class State {
  25.     Start,
  26.     Preamble,
  27.     Metadata,
  28.     Function,
  29.     Arg,
  30.     CustomEvent,
  31.     End,
  32.   };
  33.  
  34.   raw_ostream &OS;
  35.   RecordPrinter &RP;
  36.   State CurrentState = State::Start;
  37.  
  38. public:
  39.   explicit BlockPrinter(raw_ostream &O, RecordPrinter &P) : OS(O), RP(P) {}
  40.  
  41.   Error visit(BufferExtents &) override;
  42.   Error visit(WallclockRecord &) override;
  43.   Error visit(NewCPUIDRecord &) override;
  44.   Error visit(TSCWrapRecord &) override;
  45.   Error visit(CustomEventRecord &) override;
  46.   Error visit(CallArgRecord &) override;
  47.   Error visit(PIDRecord &) override;
  48.   Error visit(NewBufferRecord &) override;
  49.   Error visit(EndBufferRecord &) override;
  50.   Error visit(FunctionRecord &) override;
  51.   Error visit(CustomEventRecordV5 &) override;
  52.   Error visit(TypedEventRecord &) override;
  53.  
  54.   void reset() { CurrentState = State::Start; }
  55. };
  56.  
  57. } // namespace xray
  58. } // namespace llvm
  59.  
  60. #endif // LLVM_XRAY_BLOCKPRINTER_H
  61.