dart::compiler::Label Class Reference

#include <assembler_base.h>

Inheritance diagram for dart::compiler::Label:

Public Member Functions
	Label ()
	~Label ()
intptr_t	Position () const
intptr_t	LinkPosition () const
intptr_t	NearPosition ()
bool	IsBound () const
bool	IsUnused () const
bool	IsLinked () const
bool	HasNear () const
Public Member Functions inherited from dart::ZoneAllocated
	ZoneAllocated ()
void *	operator new (size_t size)
void *	operator new (size_t size, Zone *zone)
void	operator delete (void *pointer)

Friends
class	Assembler

Detailed Description

Definition at line 276 of file assembler_base.h.

Constructor & Destructor Documentation

Label()

dart::compiler::Label::Label ( )

inline

Definition at line 278 of file assembler_base.h.

          : position_(0), unresolved_(0) {
#ifdef DEBUG
    for (int i = 0; i < kMaxUnresolvedBranches; i++) {
      unresolved_near_positions_[i] = -1;
    }
#endif  // DEBUG
  }

~Label()

dart::compiler::Label::~Label ( )

inline

Definition at line 286 of file assembler_base.h.

           {
    // Assert if label is being destroyed with unresolved branches pending.
    ASSERT(!IsLinked());
    ASSERT(!HasNear());
  }

Member Function Documentation

HasNear()

bool dart::compiler::Label::HasNear ( ) const

inline

Definition at line 312 of file assembler_base.h.

{ return unresolved_ != 0; }

IsBound()

bool dart::compiler::Label::IsBound ( ) const

inline

Definition at line 309 of file assembler_base.h.

{ return position_ < 0; }

IsLinked()

bool dart::compiler::Label::IsLinked ( ) const

inline

Definition at line 311 of file assembler_base.h.

{ return position_ > 0; }

IsUnused()

bool dart::compiler::Label::IsUnused ( ) const

inline

Definition at line 310 of file assembler_base.h.

{ return position_ == 0 && unresolved_ == 0; }

LinkPosition()

intptr_t dart::compiler::Label::LinkPosition ( ) const

inline

Definition at line 299 of file assembler_base.h.

                                {
    ASSERT(IsLinked());
    return position_ - kBias;
  }

NearPosition()

intptr_t dart::compiler::Label::NearPosition ( )

inline

Definition at line 304 of file assembler_base.h.

                          {
    ASSERT(HasNear());
    return unresolved_near_positions_[--unresolved_];
  }

Position()

intptr_t dart::compiler::Label::Position ( ) const

inline

Definition at line 294 of file assembler_base.h.

                            {
    ASSERT(!IsUnused());
    return IsBound() ? -position_ - kBias : position_ - kBias;
  }

Friends And Related Function Documentation

Assembler

friend class Assembler

friend

Definition at line 383 of file assembler_base.h.

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

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