v8::internal::SimpleStringBuilder Class Reference

#include <utils.h>

Inheritance diagram for v8::internal::SimpleStringBuilder:

Collaboration diagram for v8::internal::SimpleStringBuilder:

Public Member Functions
	SimpleStringBuilder (int size)
	SimpleStringBuilder (char *buffer, int size)
	~SimpleStringBuilder ()
int	size () const
int	position () const
void	Reset ()
void	AddCharacter (char c)
void	AddString (const char *s)
void	AddSubstring (const char *s, int n)
void	AddPadding (char c, int count)
void	AddDecimalInteger (int value)
char *	Finalize ()

Protected Member Functions
bool	is_finalized () const

Protected Attributes
Vector< char >	buffer_
int	position_

Private Member Functions
	DISALLOW_IMPLICIT_CONSTRUCTORS (SimpleStringBuilder)

Detailed Description

Definition at line 783 of file utils.h.

Constructor & Destructor Documentation

SimpleStringBuilder() [1/2]

v8::internal::SimpleStringBuilder::SimpleStringBuilder ( int  size )

explicit

Definition at line 18 of file utils.cc.

                                                 {
  buffer_ = Vector<char>::New(size);
  position_ = 0;
}

References buffer_, v8::internal::Vector< T >::New(), position_, and size().

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SimpleStringBuilder() [2/2]

v8::internal::SimpleStringBuilder::SimpleStringBuilder ( char *  buffer, int  size  )

inline

Definition at line 790 of file utils.h.

      : buffer_(buffer, size), position_(0) { }

~SimpleStringBuilder()

v8::internal::SimpleStringBuilder::~SimpleStringBuilder ( )

inline

Definition at line 793 of file utils.h.

{ if (!is_finalized()) Finalize(); }

References Finalize(), and is_finalized().

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Member Function Documentation

AddCharacter()

void v8::internal::SimpleStringBuilder::AddCharacter ( char  c )

inline

Definition at line 809 of file utils.h.

                            {
    DCHECK(c != '\0');
    DCHECK(!is_finalized() && position_ < buffer_.length());
    buffer_[position_++] = c;
  }

References buffer_, DCHECK, is_finalized(), v8::internal::Vector< T >::length(), and position_.

Referenced by AddDecimalInteger(), AddPadding(), v8::internal::CreateExponentialRepresentation(), v8::internal::Logger::DebugEvent(), v8::internal::DoubleToCString(), v8::internal::DoubleToFixedCString(), v8::internal::DoubleToPrecisionCString(), and v8::internal::DoubleToRadixCString().

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AddDecimalInteger()

void v8::internal::SimpleStringBuilder::AddDecimalInteger

(

int

value

)

Definition at line 44 of file utils.cc.

                                                         {
  uint32_t number = static_cast<uint32_t>(value);
  if (value < 0) {
    AddCharacter('-');
    number = static_cast<uint32_t>(-value);
  }
  int digits = 1;
  for (uint32_t factor = 10; digits < 10; digits++, factor *= 10) {
    if (factor > number) break;
  }
  position_ += digits;
  for (int i = 1; i <= digits; i++) {
    buffer_[position_ - i] = '0' + static_cast<char>(number % 10);
    number /= 10;
  }
}

References AddCharacter(), buffer_, and position_.

Referenced by v8::internal::CreateExponentialRepresentation(), and v8::internal::DoubleToCString().

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AddPadding()

void v8::internal::SimpleStringBuilder::AddPadding	(	char	c,
		int	count
	)

Definition at line 37 of file utils.cc.

                                                      {
  for (int i = 0; i < count; i++) {
    AddCharacter(c);
  }
}

References AddCharacter().

Referenced by v8::internal::CreateExponentialRepresentation(), v8::internal::DoubleToCString(), v8::internal::DoubleToFixedCString(), and v8::internal::DoubleToPrecisionCString().

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AddString()

void v8::internal::SimpleStringBuilder::AddString

(

const char *

s

)

Definition at line 24 of file utils.cc.

                                                 {
  AddSubstring(s, StrLength(s));
}

References AddSubstring(), and v8::internal::StrLength().

Referenced by v8::internal::CreateExponentialRepresentation(), v8::internal::DoubleToCString(), v8::internal::DoubleToFixedCString(), and v8::internal::DoubleToPrecisionCString().

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AddSubstring()

void v8::internal::SimpleStringBuilder::AddSubstring	(	const char *	s,
		int	n
	)

Definition at line 29 of file utils.cc.

                                                           {
  DCHECK(!is_finalized() && position_ + n <= buffer_.length());
  DCHECK(static_cast<size_t>(n) <= strlen(s));
  MemCopy(&buffer_[position_], s, n * kCharSize);
  position_ += n;
}

References buffer_, DCHECK, is_finalized(), v8::internal::kCharSize, v8::internal::Vector< T >::length(), v8::internal::MemCopy(), and position_.

Referenced by AddString(), v8::internal::DoubleToCString(), v8::internal::DoubleToFixedCString(), v8::internal::DoubleToPrecisionCString(), and v8::internal::DoubleToRadixCString().

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DISALLOW_IMPLICIT_CONSTRUCTORS()

v8::internal::SimpleStringBuilder::DISALLOW_IMPLICIT_CONSTRUCTORS ( SimpleStringBuilder  )

private

Finalize()

char * v8::internal::SimpleStringBuilder::Finalize

(

)

Definition at line 62 of file utils.cc.

                                    {
  DCHECK(!is_finalized() && position_ <= buffer_.length());
  // If there is no space for null termination, overwrite last character.
  if (position_ == buffer_.length()) {
    position_--;
    // Print ellipsis.
    for (int i = 3; i > 0 && position_ > i; --i) buffer_[position_ - i] = '.';
  }
  buffer_[position_] = '\0';
  // Make sure nobody managed to add a 0-character to the
  // buffer while building the string.
  DCHECK(strlen(buffer_.start()) == static_cast<size_t>(position_));
  position_ = -1;
  DCHECK(is_finalized());
  return buffer_.start();
}

References buffer_, DCHECK, is_finalized(), v8::internal::Vector< T >::length(), position_, and v8::internal::Vector< T >::start().

Referenced by v8::internal::CreateExponentialRepresentation(), v8::internal::Logger::DebugEvent(), v8::internal::DoubleToCString(), v8::internal::DoubleToFixedCString(), v8::internal::DoubleToPrecisionCString(), v8::internal::DoubleToRadixCString(), and ~SimpleStringBuilder().

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is_finalized()

bool v8::internal::SimpleStringBuilder::is_finalized ( ) const

inlineprotected

Definition at line 837 of file utils.h.

{ return position_ < 0; }

References position_.

Referenced by AddCharacter(), v8::internal::StringBuilder::AddFormattedList(), AddSubstring(), Finalize(), position(), and ~SimpleStringBuilder().

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position()

int v8::internal::SimpleStringBuilder::position ( ) const

inline

Definition at line 798 of file utils.h.

                       {
    DCHECK(!is_finalized());
    return position_;
  }

References DCHECK, is_finalized(), and position_.

Referenced by v8::internal::DoubleToPrecisionCString().

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Reset()

void v8::internal::SimpleStringBuilder::Reset ( )

inline

Definition at line 804 of file utils.h.

{ position_ = 0; }

References position_.

size()

int v8::internal::SimpleStringBuilder::size ( ) const

inline

Definition at line 795 of file utils.h.

{ return buffer_.length(); }

References buffer_, and v8::internal::Vector< T >::length().

Referenced by SimpleStringBuilder().

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Member Data Documentation

buffer_

Vector<char> v8::internal::SimpleStringBuilder::buffer_

protected

Definition at line 834 of file utils.h.

Referenced by AddCharacter(), AddDecimalInteger(), v8::internal::StringBuilder::AddFormattedList(), AddSubstring(), Finalize(), SimpleStringBuilder(), and size().

position_

int v8::internal::SimpleStringBuilder::position_

protected

Definition at line 835 of file utils.h.

Referenced by AddCharacter(), AddDecimalInteger(), v8::internal::StringBuilder::AddFormattedList(), AddSubstring(), Finalize(), is_finalized(), position(), Reset(), and SimpleStringBuilder().

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

• /mnt/V8SourceCode/src/utils.h
• /mnt/V8SourceCode/src/utils.cc