dart::DisassembleToJSONStream Class Reference

#include <disassembler.h>

Inheritance diagram for dart::DisassembleToJSONStream:

Public Member Functions
	DisassembleToJSONStream (const JSONArray &jsarr)
	~DisassembleToJSONStream ()
virtual void	ConsumeInstruction (char *hex_buffer, intptr_t hex_size, char *human_buffer, intptr_t human_size, Object *object, uword pc)
virtual void	Print (const char *format,...) PRINTF_ATTRIBUTE(2
Public Member Functions inherited from dart::DisassemblyFormatter
	DisassemblyFormatter ()
virtual	~DisassemblyFormatter ()

Detailed Description

Definition at line 66 of file disassembler.h.

Constructor & Destructor Documentation

DisassembleToJSONStream()

dart::DisassembleToJSONStream::DisassembleToJSONStream ( const JSONArray &  jsarr )

inlineexplicit

Definition at line 68 of file disassembler.h.

      : DisassemblyFormatter(), jsarr_(jsarr) {}

~DisassembleToJSONStream()

dart::DisassembleToJSONStream::~DisassembleToJSONStream ( )

inline

Definition at line 70 of file disassembler.h.

{}

Member Function Documentation

ConsumeInstruction()

void dart::DisassembleToJSONStream::ConsumeInstruction ( char *  hex_buffer, intptr_t  hex_size, char *  human_buffer, intptr_t  human_size, Object *  object, uword  pc  )

virtual

Implements dart::DisassemblyFormatter.

Definition at line 502 of file disassembler.cc.

                                                           {
  // Instructions are represented as four consecutive values in a JSON array.
  // The first is the address of the instruction, the second is the hex string,
  // of the code, and the third is a human readable string, and the fourth is
  // the object loaded by the instruction.
  jsarr_.AddValueF("%" Pp "", pc);
  jsarr_.AddValue(hex_buffer);
  jsarr_.AddValue(human_buffer);
 
  if (object != nullptr) {
    jsarr_.AddValue(*object);
  } else {
    jsarr_.AddValueNull();  // Not a reference to null.
  }
}

Print()

void dart::DisassembleToJSONStream::Print ( const char *  format,   ...  )

virtual

Reimplemented from dart::DisassemblyFormatter.

Definition at line 523 of file disassembler.cc.

                                                           {
  va_list measure_args;
  va_start(measure_args, format);
  intptr_t len = Utils::VSNPrint(nullptr, 0, format, measure_args);
  va_end(measure_args);
 
  char* p = reinterpret_cast<char*>(malloc(len + 1));
  va_list print_args;
  va_start(print_args, format);
  intptr_t len2 = Utils::VSNPrint(p, len, format, print_args);
  va_end(print_args);
  ASSERT(len == len2);
  for (intptr_t i = 0; i < len; i++) {
    if (p[i] == '\n' || p[i] == '\r') {
      p[i] = ' ';
    }
  }
  // Instructions are represented as four consecutive values in a JSON array.
  // Comments only use the third slot. See above comment for more information.
  jsarr_.AddValueNull();
  jsarr_.AddValueNull();
  jsarr_.AddValue(p);
  jsarr_.AddValueNull();
  free(p);
}

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The documentation for this class was generated from the following files:

• third_party/dart-lang/sdk/runtime/vm/compiler/assembler/disassembler.h
• third_party/dart-lang/sdk/runtime/vm/compiler/assembler/disassembler.cc