v8::internal::ExternalTwoByteStringUtf16CharacterStream Class Reference

#include <scanner-character-streams.h>

Inheritance diagram for v8::internal::ExternalTwoByteStringUtf16CharacterStream:

Collaboration diagram for v8::internal::ExternalTwoByteStringUtf16CharacterStream:

Public Member Functions
	ExternalTwoByteStringUtf16CharacterStream (Handle< ExternalTwoByteString > data, int start_position, int end_position)
virtual	~ExternalTwoByteStringUtf16CharacterStream ()
virtual void	PushBack (uc32 character)
Public Member Functions inherited from v8::internal::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 ()

Protected Attributes
Handle< ExternalTwoByteString >	source_
const uc16 *	raw_data_
Protected Attributes inherited from v8::internal::Utf16CharacterStream
const uint16_t *	buffer_cursor_
const uint16_t *	buffer_end_
unsigned	pos_

Additional Inherited Members
Static Protected Attributes inherited from v8::internal::Utf16CharacterStream
static const uc32	kEndOfInput = -1

Detailed Description

Definition at line 120 of file scanner-character-streams.h.

Constructor & Destructor Documentation

ExternalTwoByteStringUtf16CharacterStream()

v8::internal::ExternalTwoByteStringUtf16CharacterStream::ExternalTwoByteStringUtf16CharacterStream	(	Handle< ExternalTwoByteString >	data,
		int	start_position,
		int	end_position
	)

Definition at line 438 of file scanner-character-streams.cc.

    : Utf16CharacterStream(),
      source_(data),
      raw_data_(data->GetTwoByteData(start_position)) {
  buffer_cursor_ = raw_data_,
  buffer_end_ = raw_data_ + (end_position - start_position);
  pos_ = start_position;
}

~ExternalTwoByteStringUtf16CharacterStream()

v8::internal::ExternalTwoByteStringUtf16CharacterStream::~ExternalTwoByteStringUtf16CharacterStream ( )

virtual

Definition at line 434 of file scanner-character-streams.cc.

{ }

Member Function Documentation

PushBack()

virtual void v8::internal::ExternalTwoByteStringUtf16CharacterStream::PushBack ( uc32  character )

inlinevirtual

Implements v8::internal::Utf16CharacterStream.

Definition at line 127 of file scanner-character-streams.h.

                                        {
    DCHECK(buffer_cursor_ > raw_data_);
    buffer_cursor_--;
    pos_--;
  }

References v8::internal::Utf16CharacterStream::buffer_cursor_, DCHECK, v8::internal::Utf16CharacterStream::pos_, and raw_data_.

ReadBlock()

virtual bool v8::internal::ExternalTwoByteStringUtf16CharacterStream::ReadBlock ( )

inlineprotectedvirtual

Implements v8::internal::Utf16CharacterStream.

Definition at line 138 of file scanner-character-streams.h.

                           {
    // Entire string is read at start.
    return false;
  }

SlowSeekForward()

virtual unsigned v8::internal::ExternalTwoByteStringUtf16CharacterStream::SlowSeekForward ( unsigned  delta )

inlineprotectedvirtual

Implements v8::internal::Utf16CharacterStream.

Definition at line 134 of file scanner-character-streams.h.

                                                   {
    // Fast case always handles seeking.
    return 0;
  }

Member Data Documentation

raw_data_

const uc16* v8::internal::ExternalTwoByteStringUtf16CharacterStream::raw_data_

protected

Definition at line 143 of file scanner-character-streams.h.

Referenced by PushBack().

source_

Handle<ExternalTwoByteString> v8::internal::ExternalTwoByteStringUtf16CharacterStream::source_

protected

Definition at line 142 of file scanner-character-streams.h.

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

• /mnt/V8SourceCode/src/scanner-character-streams.h
• /mnt/V8SourceCode/src/scanner-character-streams.cc