v8::internal::IteratingStringHasher Class Reference

#include <objects.h>

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Public Member Functions
void	VisitOneByteString (const uint8_t *chars, int length)
void	VisitTwoByteString (const uint16_t *chars, int length)
Public Member Functions inherited from v8::internal::StringHasher
	StringHasher (int length, uint32_t seed)
	INLINE (static uint32_t AddCharacterCore(uint32_t running_hash, uint16_t c))
	INLINE (static uint32_t GetHashCore(uint32_t running_hash))

Static Public Member Functions
static uint32_t	Hash (String *string, uint32_t seed)
Static Public Member Functions inherited from v8::internal::StringHasher
template<typename schar >
static uint32_t	HashSequentialString (const schar *chars, int length, uint32_t seed)
static uint32_t	ComputeUtf8Hash (Vector< const char > chars, uint32_t seed, int *utf16_length_out)
static uint32_t	MakeArrayIndexHash (uint32_t value, int length)

Private Member Functions
	IteratingStringHasher (int len, uint32_t seed)
	DISALLOW_COPY_AND_ASSIGN (IteratingStringHasher)

Additional Inherited Members
Static Public Attributes inherited from v8::internal::StringHasher
static const int	kZeroHash = 27
Protected Member Functions inherited from v8::internal::StringHasher
uint32_t	GetHashField ()
bool	has_trivial_hash ()
template<typename Char >
void	AddCharacters (const Char *chars, int len)

Detailed Description

Definition at line 8395 of file objects.h.

Constructor & Destructor Documentation

IteratingStringHasher()

v8::internal::IteratingStringHasher::IteratingStringHasher ( int  len, uint32_t  seed  )

inlineprivate

Definition at line 8402 of file objects.h.

      : StringHasher(len, seed) {}

Member Function Documentation

DISALLOW_COPY_AND_ASSIGN()

v8::internal::IteratingStringHasher::DISALLOW_COPY_AND_ASSIGN ( IteratingStringHasher  )

private

Hash()

uint32_t v8::internal::IteratingStringHasher::Hash ( String *  string, uint32_t  seed  )

inlinestatic

Definition at line 6572 of file objects-inl.h.

                                                                  {
  IteratingStringHasher hasher(string->length(), seed);
  // Nothing to do.
  if (hasher.has_trivial_hash()) return hasher.GetHashField();
  ConsString* cons_string = String::VisitFlat(&hasher, string);
  // The string was flat.
  if (cons_string == NULL) return hasher.GetHashField();
  // This is a ConsString, iterate across it.
  ConsStringIteratorOp op(cons_string);
  int offset;
  while (NULL != (string = op.Next(&offset))) {
    String::VisitFlat(&hasher, string, offset);
  }
  return hasher.GetHashField();
}

References v8::internal::StringHasher::GetHashField(), v8::internal::StringHasher::has_trivial_hash(), v8::internal::String::length(), v8::internal::ConsStringIteratorOp::Next(), NULL, and v8::internal::String::VisitFlat().

Referenced by v8::internal::SerializedCodeData::CheckSum(), and v8::internal::String::ComputeAndSetHash().

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VisitOneByteString()

void v8::internal::IteratingStringHasher::VisitOneByteString ( const uint8_t *  chars, int  length  )

inline

Definition at line 6589 of file objects-inl.h.

                                                           {
  AddCharacters(chars, length);
}

References v8::internal::StringHasher::AddCharacters().

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VisitTwoByteString()

void v8::internal::IteratingStringHasher::VisitTwoByteString ( const uint16_t *  chars, int  length  )

inline

Definition at line 6595 of file objects-inl.h.

                                                           {
  AddCharacters(chars, length);
}

References v8::internal::StringHasher::AddCharacters().

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

• /mnt/V8SourceCode/src/objects.h
• /mnt/V8SourceCode/src/objects-inl.h