dart::ProfileStackWalker Class Reference

Public Member Functions
	ProfileStackWalker (Profile *profile, bool as_func=false)
bool	Down ()
const char *	CurrentName ()
const char *	CurrentToken ()
intptr_t	CurrentInclusiveTicks ()
intptr_t	CurrentExclusiveTicks ()
const char *	VMTagName ()

Detailed Description

Definition at line 284 of file profiler_test.cc.

Constructor & Destructor Documentation

ProfileStackWalker()

dart::ProfileStackWalker::ProfileStackWalker ( Profile *  profile, bool  as_func = false  )

inlineexplicit

Definition at line 286 of file profiler_test.cc.

      : profile_(profile),
        as_functions_(as_func),
        index_(0),
        sample_(profile->SampleAt(0)) {
    ClearInliningData();
  }

Member Function Documentation

CurrentExclusiveTicks()

intptr_t dart::ProfileStackWalker::CurrentExclusiveTicks ( )

inline

Definition at line 361 of file profiler_test.cc.

                                   {
    if (as_functions_) {
      ProfileFunction* func = GetFunction();
      EXPECT(func != nullptr);
      return func->exclusive_ticks();
    } else {
      ProfileCode* code = GetCode();
      ASSERT(code != nullptr);
      return code->exclusive_ticks();
    }
  }

CurrentInclusiveTicks()

intptr_t dart::ProfileStackWalker::CurrentInclusiveTicks ( )

inline

Definition at line 349 of file profiler_test.cc.

                                   {
    if (as_functions_) {
      ProfileFunction* func = GetFunction();
      EXPECT(func != nullptr);
      return func->inclusive_ticks();
    } else {
      ProfileCode* code = GetCode();
      ASSERT(code != nullptr);
      return code->inclusive_ticks();
    }
  }

CurrentName()

const char * dart::ProfileStackWalker::CurrentName ( )

inline

Definition at line 303 of file profiler_test.cc.

                            {
    if (as_functions_) {
      ProfileFunction* func = GetFunction();
      EXPECT(func != nullptr);
      return func->Name();
    } else {
      ProfileCode* code = GetCode();
      EXPECT(code != nullptr);
      return code->name();
    }
  }

CurrentToken()

const char * dart::ProfileStackWalker::CurrentToken ( )

inline

Definition at line 315 of file profiler_test.cc.

                             {
    if (!as_functions_) {
      return nullptr;
    }
    ProfileFunction* func = GetFunction();
    const Function& function = *(func->function());
    if (function.IsNull()) {
      // No function.
      return nullptr;
    }
    Zone* zone = Thread::Current()->zone();
    const Script& script = Script::Handle(zone, function.script());
    if (script.IsNull()) {
      // No script.
      return nullptr;
    }
    ProfileFunctionSourcePosition pfsp(TokenPosition::kNoSource);
    if (!func->GetSinglePosition(&pfsp)) {
      // Not exactly one source position.
      return nullptr;
    }
 
    const TokenPosition& token_pos = pfsp.token_pos();
    intptr_t line, column;
    if (script.GetTokenLocation(token_pos, &line, &column)) {
      const intptr_t token_len = script.GetTokenLength(token_pos);
      const auto& str = String::Handle(
          zone, script.GetSnippet(line, column, line, column + token_len));
      if (!str.IsNull()) return str.ToCString();
    }
    // Couldn't get line/number information.
    return nullptr;
  }

Down()

bool dart::ProfileStackWalker::Down ( )

inline

Definition at line 294 of file profiler_test.cc.

              {
    if (as_functions_) {
      return UpdateFunctionIndex();
    } else {
      ++index_;
      return (index_ < sample_->length());
    }
  }

VMTagName()

const char * dart::ProfileStackWalker::VMTagName ( )

inline

Definition at line 373 of file profiler_test.cc.

{ return VMTag::TagName(sample_->vm_tag()); }

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

• third_party/dart-lang/sdk/runtime/vm/profiler_test.cc