dart::LongJumpScope Class Reference

#include <longjump.h>

Inheritance diagram for dart::LongJumpScope:

Public Member Functions
	LongJumpScope (ThreadState *thread=ThreadState::Current())
	~LongJumpScope ()
jmp_buf *	Set ()
DART_NORETURN void	Jump (int value, const Error &error)
DART_NORETURN void	Jump (int value)
Public Member Functions inherited from dart::StackResource
	StackResource (ThreadState *thread)
virtual	~StackResource ()
ThreadState *	thread () const

Additional Inherited Members
Static Public Member Functions inherited from dart::StackResource
static void	Unwind (ThreadState *thread)
static void	UnwindAbove (ThreadState *thread, StackResource *new_top)

Detailed Description

Definition at line 17 of file longjump.h.

Constructor & Destructor Documentation

LongJumpScope()

dart::LongJumpScope::LongJumpScope ( ThreadState *  thread = ThreadState::Current() )

inlineexplicit

Definition at line 19 of file longjump.h.

      : StackResource(thread), top_(nullptr), base_(thread->long_jump_base()) {
    thread->set_long_jump_base(this);
  }

~LongJumpScope()

dart::LongJumpScope::~LongJumpScope ( )

inline

Definition at line 24 of file longjump.h.

                   {
    ASSERT(thread() == ThreadState::Current());
    thread()->set_long_jump_base(base_);
  }

Member Function Documentation

Jump() [1/2]

void dart::LongJumpScope::Jump

(

int

value

)

Definition at line 31 of file longjump.cc.

                                  {
  // A zero is the default return value from setting up a LongJumpScope
  // using Set.
  ASSERT(value != 0);
 
  Thread* thread = Thread::Current();
  DEBUG_ASSERT(thread->TopErrorHandlerIsSetJump());
 
  // Destruct all the active StackResource objects.
  StackResource::UnwindAbove(thread, top_);
  longjmp(environment_, value);
  UNREACHABLE();
}

Jump() [2/2]

void dart::LongJumpScope::Jump	(	int	value,
		const Error &	error
	)

Definition at line 22 of file longjump.cc.

                                                      {
  ASSERT(!error.IsNull());
 
  // Remember the error in the sticky error of this isolate.
  Thread::Current()->set_sticky_error(error);
 
  Jump(value);
}

Set()

jmp_buf * dart::LongJumpScope::Set

(

)

Definition at line 16 of file longjump.cc.

                            {
  ASSERT(top_ == nullptr);
  top_ = Thread::Current()->top_resource();
  return &environment_;
}

---

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

• third_party/dart-lang/sdk/runtime/vm/longjump.h
• third_party/dart-lang/sdk/runtime/vm/longjump.cc