BufferedUtf16CharacterStream Class Reference

#include <scanner-character-streams.h>

Inheritance diagram for BufferedUtf16CharacterStream:

Collaboration diagram for BufferedUtf16CharacterStream:

Public Member Functions
	BufferedUtf16CharacterStream ()
virtual	~BufferedUtf16CharacterStream ()
virtual void	PushBack (uc32 character)
Public Member Functions inherited from Utf16CharacterStream
	Utf16CharacterStream ()
virtual	~Utf16CharacterStream ()
uc32	Advance ()
unsigned	pos () const
unsigned	SeekForward (unsigned code_unit_count)

Protected Member Functions
virtual unsigned	SlowSeekForward (unsigned delta)
virtual bool	ReadBlock ()
virtual void	SlowPushBack (uc16 character)
virtual unsigned	BufferSeekForward (unsigned delta)=0
virtual unsigned	FillBuffer (unsigned position, unsigned length)=0

Protected Attributes
const uc16 *	pushback_limit_
uc16	buffer_ [kBufferSize]
Protected Attributes inherited from Utf16CharacterStream
const uc16 *	buffer_cursor_
const uc16 *	buffer_end_
unsigned	pos_

Static Protected Attributes
static const unsigned	kBufferSize = 512
static const unsigned	kPushBackStepSize = 16
Static Protected Attributes inherited from Utf16CharacterStream
static const uc32	kEndOfInput = -1

Detailed Description

Definition at line 39 of file scanner-character-streams.h.

Constructor & Destructor Documentation

BufferedUtf16CharacterStream

(

)

Definition at line 41 of file scanner-character-streams.cc.

References BufferedUtf16CharacterStream::buffer_, Utf16CharacterStream::buffer_cursor_, and Utf16CharacterStream::buffer_end_.

~BufferedUtf16CharacterStream ( )

virtual

Definition at line 49 of file scanner-character-streams.cc.

Member Function Documentation

virtual unsigned BufferSeekForward ( unsigned  delta )

protectedpure virtual

Implemented in Utf8ToUtf16CharacterStream, and GenericStringUtf16CharacterStream.

Referenced by BufferedUtf16CharacterStream::SlowSeekForward().

virtual unsigned FillBuffer ( unsigned  position, unsigned  length  )

protectedpure virtual

Implemented in Utf8ToUtf16CharacterStream, and GenericStringUtf16CharacterStream.

Referenced by BufferedUtf16CharacterStream::ReadBlock().

void PushBack ( uc32  character )

virtual

Implements Utf16CharacterStream.

Definition at line 51 of file scanner-character-streams.cc.

References BufferedUtf16CharacterStream::buffer_, Utf16CharacterStream::buffer_cursor_, Utf16CharacterStream::kEndOfInput, v8::internal::NULL, Utf16CharacterStream::pos_, BufferedUtf16CharacterStream::pushback_limit_, and BufferedUtf16CharacterStream::SlowPushBack().

Referenced by TEST(), and TestCharacterStream().

bool ReadBlock ( )

protectedvirtual

Implements Utf16CharacterStream.

Definition at line 92 of file scanner-character-streams.cc.

References BufferedUtf16CharacterStream::buffer_, Utf16CharacterStream::buffer_cursor_, Utf16CharacterStream::buffer_end_, BufferedUtf16CharacterStream::FillBuffer(), BufferedUtf16CharacterStream::kBufferSize, v8::internal::NULL, Utf16CharacterStream::pos_, and BufferedUtf16CharacterStream::pushback_limit_.

Referenced by GenericStringUtf16CharacterStream::BufferSeekForward(), Utf8ToUtf16CharacterStream::BufferSeekForward(), and Utf8ToUtf16CharacterStream::Utf8ToUtf16CharacterStream().

void SlowPushBack ( uc16  character )

protectedvirtual

Definition at line 66 of file scanner-character-streams.cc.

References ASSERT, BufferedUtf16CharacterStream::buffer_, Utf16CharacterStream::buffer_cursor_, Utf16CharacterStream::buffer_end_, BufferedUtf16CharacterStream::kBufferSize, v8::internal::NULL, Utf16CharacterStream::pos_, and BufferedUtf16CharacterStream::pushback_limit_.

Referenced by BufferedUtf16CharacterStream::PushBack().

unsigned SlowSeekForward ( unsigned  delta )

protectedvirtual

Implements Utf16CharacterStream.

Definition at line 109 of file scanner-character-streams.cc.

References BufferedUtf16CharacterStream::BufferSeekForward(), v8::internal::NULL, and BufferedUtf16CharacterStream::pushback_limit_.

Field Documentation

uc16 buffer_[kBufferSize]

protected

Definition at line 58 of file scanner-character-streams.h.

Referenced by BufferedUtf16CharacterStream::BufferedUtf16CharacterStream(), GenericStringUtf16CharacterStream::FillBuffer(), Utf8ToUtf16CharacterStream::FillBuffer(), GenericStringUtf16CharacterStream::GenericStringUtf16CharacterStream(), BufferedUtf16CharacterStream::PushBack(), BufferedUtf16CharacterStream::ReadBlock(), and BufferedUtf16CharacterStream::SlowPushBack().

const unsigned kBufferSize = 512

staticprotected

Definition at line 47 of file scanner-character-streams.h.

Referenced by BufferedUtf16CharacterStream::ReadBlock(), and BufferedUtf16CharacterStream::SlowPushBack().

const unsigned kPushBackStepSize = 16

staticprotected

Definition at line 48 of file scanner-character-streams.h.

const uc16* pushback_limit_

protected

Definition at line 57 of file scanner-character-streams.h.

Referenced by BufferedUtf16CharacterStream::PushBack(), BufferedUtf16CharacterStream::ReadBlock(), BufferedUtf16CharacterStream::SlowPushBack(), and BufferedUtf16CharacterStream::SlowSeekForward().

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

• src/scanner-character-streams.h
• src/scanner-character-streams.cc