dart::StringHasher Class Reference

#include <object.h>

Inheritance diagram for dart::StringHasher:

Public Member Functions
	StringHasher ()
void	Add (uint16_t code_unit)
void	Add (const uint8_t *code_units, intptr_t len)
void	Add (const uint16_t *code_units, intptr_t len)
void	Add (const String &str, intptr_t begin_index, intptr_t len)
intptr_t	Finalize ()
Public Member Functions inherited from dart::ValueObject
	ValueObject ()
	~ValueObject ()

Detailed Description

Definition at line 10477 of file object.h.

Constructor & Destructor Documentation

StringHasher()

dart::StringHasher::StringHasher ( )

inline

Definition at line 10479 of file object.h.

: hash_(0) {}

Member Function Documentation

Add() [1/4]

void dart::StringHasher::Add	(	const String &	str,
		intptr_t	begin_index,
		intptr_t	len
	)

Definition at line 23540 of file object.cc.

                                                                            {
  ASSERT(begin_index >= 0);
  ASSERT(len >= 0);
  ASSERT((begin_index + len) <= str.Length());
  if (len == 0) {
    return;
  }
  if (str.IsOneByteString()) {
    NoSafepointScope no_safepoint;
    Add(OneByteString::CharAddr(str, begin_index), len);
  } else if (str.IsTwoByteString()) {
    NoSafepointScope no_safepoint;
    Add(TwoByteString::CharAddr(str, begin_index), len);
  } else {
    UNREACHABLE();
  }
}

Add() [2/4]

void dart::StringHasher::Add ( const uint16_t *  code_units, intptr_t  len  )

inline

Definition at line 10488 of file object.h.

                                                     {
    while (len > 0) {
      Add(LoadUnaligned(code_units));
      code_units++;
      len--;
    }
  }

Add() [3/4]

void dart::StringHasher::Add ( const uint8_t *  code_units, intptr_t  len  )

inline

Definition at line 10481 of file object.h.

                                                    {
    while (len > 0) {
      Add(*code_units);
      code_units++;
      len--;
    }
  }

Add() [4/4]

void dart::StringHasher::Add ( uint16_t  code_unit )

inline

Definition at line 10480 of file object.h.

{ hash_ = CombineHashes(hash_, code_unit); }

Finalize()

intptr_t dart::StringHasher::Finalize ( )

inline

Definition at line 10496 of file object.h.

{ return FinalizeHash(hash_, String::kHashBits); }

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

• third_party/dart-lang/sdk/runtime/vm/object.h
• third_party/dart-lang/sdk/runtime/vm/object.cc