dart::TwoByteStringMessageDeserializationCluster Class Reference

Inheritance diagram for dart::TwoByteStringMessageDeserializationCluster:

Public Member Functions
	TwoByteStringMessageDeserializationCluster (bool is_canonical)
	~TwoByteStringMessageDeserializationCluster ()
void	ReadNodes (MessageDeserializer *d)
void	ReadNodesApi (ApiMessageDeserializer *d)
Public Member Functions inherited from dart::MessageDeserializationCluster
	MessageDeserializationCluster (const char *name, bool is_canonical=false)
virtual	~MessageDeserializationCluster ()
virtual void	ReadEdges (MessageDeserializer *d)
virtual ObjectPtr	PostLoad (MessageDeserializer *d)
virtual void	ReadEdgesApi (ApiMessageDeserializer *d)
virtual void	PostLoadApi (ApiMessageDeserializer *d)
void	ReadNodesWrapped (MessageDeserializer *d)
void	ReadNodesWrappedApi (ApiMessageDeserializer *d)
const char *	name () const
bool	is_canonical () const
Public Member Functions inherited from dart::ZoneAllocated
	ZoneAllocated ()
void *	operator new (size_t size)
void *	operator new (size_t size, Zone *zone)
void	operator delete (void *pointer)

Additional Inherited Members
Protected Member Functions inherited from dart::MessageDeserializationCluster
ObjectPtr	PostLoadAbstractType (MessageDeserializer *d)
ObjectPtr	PostLoadLinkedHash (MessageDeserializer *d)
	DISALLOW_COPY_AND_ASSIGN (MessageDeserializationCluster)
Protected Attributes inherited from dart::MessageDeserializationCluster
const char *const	name_
const bool	is_canonical_
intptr_t	start_index_
intptr_t	stop_index_

Detailed Description

Definition at line 2632 of file message_snapshot.cc.

Constructor & Destructor Documentation

TwoByteStringMessageDeserializationCluster()

dart::TwoByteStringMessageDeserializationCluster::TwoByteStringMessageDeserializationCluster ( bool  is_canonical )

inlineexplicit

Definition at line 2635 of file message_snapshot.cc.

      : MessageDeserializationCluster("TwoByteString", is_canonical) {}

~TwoByteStringMessageDeserializationCluster()

dart::TwoByteStringMessageDeserializationCluster::~TwoByteStringMessageDeserializationCluster ( )

inline

Definition at line 2637 of file message_snapshot.cc.

{}

Member Function Documentation

ReadNodes()

void dart::TwoByteStringMessageDeserializationCluster::ReadNodes ( MessageDeserializer *  d )

inlinevirtual

Implements dart::MessageDeserializationCluster.

Definition at line 2639 of file message_snapshot.cc.

                                         {
    const intptr_t count = d->ReadUnsigned();
    for (intptr_t i = 0; i < count; i++) {
      intptr_t length = d->ReadUnsigned();
      const uint16_t* data =
          reinterpret_cast<const uint16_t*>(d->CurrentBufferAddress());
      d->Advance(length * sizeof(uint16_t));
      d->AssignRef(is_canonical()
                       ? Symbols::FromUTF16(d->thread(), data, length)
                       : String::FromUTF16(data, length));
    }
  }

ReadNodesApi()

void dart::TwoByteStringMessageDeserializationCluster::ReadNodesApi ( ApiMessageDeserializer *  d )

inlinevirtual

Reimplemented from dart::MessageDeserializationCluster.

Definition at line 2652 of file message_snapshot.cc.

                                               {
    intptr_t count = d->ReadUnsigned();
    for (intptr_t j = 0; j < count; j++) {
      // Read all the UTF-16 code units.
      intptr_t utf16_length = d->ReadUnsigned();
      const uint16_t* utf16 =
          reinterpret_cast<const uint16_t*>(d->CurrentBufferAddress());
      d->Advance(utf16_length * sizeof(uint16_t));
 
      // Calculate the UTF-8 length and check if the string can be
      // UTF-8 encoded.
      intptr_t utf8_len = 0;
      bool valid = true;
      intptr_t i = 0;
      while (i < utf16_length && valid) {
        int32_t ch = Utf16::Next(utf16, &i, utf16_length);
        utf8_len += Utf8::Length(ch);
        valid = !Utf16::IsSurrogate(ch);
      }
      if (!valid) {
        d->AssignRef(d->Allocate(Dart_CObject_kUnsupported));
      } else {
        Dart_CObject* str = d->Allocate(Dart_CObject_kString);
        char* utf8 = d->zone()->Alloc<char>(utf8_len + 1);
        str->value.as_string = utf8;
        i = 0;
        while (i < utf16_length) {
          utf8 += Utf8::Encode(Utf16::Next(utf16, &i, utf16_length), utf8);
        }
        *utf8 = '\0';
        d->AssignRef(str);
      }
    }
  }

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

• third_party/dart-lang/sdk/runtime/vm/message_snapshot.cc