v8::internal::Utf8StringKey Class Reference

#include <objects-inl.h>

Inheritance diagram for v8::internal::Utf8StringKey:

Collaboration diagram for v8::internal::Utf8StringKey:

Public Member Functions
	Utf8StringKey (Vector< const char > string, uint32_t seed)
virtual bool	IsMatch (Object *string) OVERRIDE
virtual uint32_t	Hash () OVERRIDE
virtual uint32_t	HashForObject (Object *other) OVERRIDE
virtual Handle< Object >	AsHandle (Isolate *isolate) OVERRIDE
Public Member Functions inherited from v8::internal::HashTableKey
virtual	~HashTableKey ()

Public Attributes
Vector< const char >	string_
uint32_t	hash_field_
int	chars_
uint32_t	seed_

Detailed Description

Definition at line 585 of file objects-inl.h.

Constructor & Destructor Documentation

Utf8StringKey()

v8::internal::Utf8StringKey::Utf8StringKey ( Vector< const char >  string, uint32_t  seed  )

inlineexplicit

Definition at line 587 of file objects-inl.h.

      : string_(string), hash_field_(0), seed_(seed) { }

Member Function Documentation

AsHandle()

virtual Handle<Object> v8::internal::Utf8StringKey::AsHandle ( Isolate *  isolate )

inlinevirtual

Implements v8::internal::HashTableKey.

Definition at line 606 of file objects-inl.h.

                                                             {
    if (hash_field_ == 0) Hash();
    return isolate->factory()->NewInternalizedStringFromUtf8(
        string_, chars_, hash_field_);
  }

References chars_, Hash(), hash_field_, and string_.

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Hash()

virtual uint32_t v8::internal::Utf8StringKey::Hash ( )

inlinevirtual

Implements v8::internal::HashTableKey.

Definition at line 594 of file objects-inl.h.

                                   {
    if (hash_field_ != 0) return hash_field_ >> String::kHashShift;
    hash_field_ = StringHasher::ComputeUtf8Hash(string_, seed_, &chars_);
    uint32_t result = hash_field_ >> String::kHashShift;
    DCHECK(result != 0);  // Ensure that the hash value of 0 is never computed.
    return result;
  }

References chars_, v8::internal::StringHasher::ComputeUtf8Hash(), DCHECK, hash_field_, v8::internal::Name::kHashShift, seed_, and string_.

Referenced by AsHandle().

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HashForObject()

virtual uint32_t v8::internal::Utf8StringKey::HashForObject ( Object *  other )

inlinevirtual

Implements v8::internal::HashTableKey.

Definition at line 602 of file objects-inl.h.

                                                         {
    return String::cast(other)->Hash();
  }

IsMatch()

virtual bool v8::internal::Utf8StringKey::IsMatch ( Object *  string )

inlinevirtual

Implements v8::internal::HashTableKey.

Definition at line 590 of file objects-inl.h.

                                                {
    return String::cast(string)->IsUtf8EqualTo(string_);
  }

References string_.

Member Data Documentation

chars_

int v8::internal::Utf8StringKey::chars_

Definition at line 614 of file objects-inl.h.

Referenced by AsHandle(), and Hash().

hash_field_

uint32_t v8::internal::Utf8StringKey::hash_field_

Definition at line 613 of file objects-inl.h.

Referenced by AsHandle(), and Hash().

seed_

uint32_t v8::internal::Utf8StringKey::seed_

Definition at line 615 of file objects-inl.h.

Referenced by Hash().

string_

Vector<const char> v8::internal::Utf8StringKey::string_

Definition at line 612 of file objects-inl.h.

Referenced by AsHandle(), Hash(), and IsMatch().

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

• /mnt/V8SourceCode/src/objects-inl.h