dart::PcDescriptors::Iterator Class Reference

#include <object.h>

Inheritance diagram for dart::PcDescriptors::Iterator:

Public Member Functions
	Iterator (const PcDescriptors &descriptors, intptr_t kind_mask)
bool	MoveNext ()
uword	PcOffset () const
intptr_t	DeoptId () const
TokenPosition	TokenPos () const
intptr_t	TryIndex () const
intptr_t	YieldIndex () const
UntaggedPcDescriptors::Kind	Kind () const
Public Member Functions inherited from dart::ValueObject
	ValueObject ()
	~ValueObject ()

Friends
class	PcDescriptors

Detailed Description

Definition at line 6083 of file object.h.

Constructor & Destructor Documentation

Iterator()

dart::PcDescriptors::Iterator::Iterator ( const PcDescriptors &  descriptors, intptr_t  kind_mask  )

inline

Definition at line 6085 of file object.h.

        : descriptors_(descriptors),
          kind_mask_(kind_mask),
          byte_index_(0),
          cur_pc_offset_(0),
          cur_kind_(0),
          cur_deopt_id_(0),
          cur_token_pos_(0),
          cur_try_index_(0),
          cur_yield_index_(UntaggedPcDescriptors::kInvalidYieldIndex) {}

Member Function Documentation

DeoptId()

intptr_t dart::PcDescriptors::Iterator::DeoptId ( ) const

inline

Definition at line 6128 of file object.h.

{ return cur_deopt_id_; }

Kind()

UntaggedPcDescriptors::Kind dart::PcDescriptors::Iterator::Kind ( ) const

inline

Definition at line 6134 of file object.h.

                                           {
      return static_cast<UntaggedPcDescriptors::Kind>(cur_kind_);
    }

MoveNext()

bool dart::PcDescriptors::Iterator::MoveNext ( )

inline

Definition at line 6096 of file object.h.

                    {
      NoSafepointScope scope;
      ReadStream stream(descriptors_.untag()->data(), descriptors_.Length(),
                        byte_index_);
      // Moves to record that matches kind_mask_.
      while (byte_index_ < descriptors_.Length()) {
        const int32_t kind_and_metadata = stream.ReadSLEB128<int32_t>();
        cur_kind_ = UntaggedPcDescriptors::KindAndMetadata::DecodeKind(
            kind_and_metadata);
        cur_try_index_ = UntaggedPcDescriptors::KindAndMetadata::DecodeTryIndex(
            kind_and_metadata);
        cur_yield_index_ =
            UntaggedPcDescriptors::KindAndMetadata::DecodeYieldIndex(
                kind_and_metadata);
 
        cur_pc_offset_ += stream.ReadSLEB128();
 
        if (!FLAG_precompiled_mode) {
          cur_deopt_id_ += stream.ReadSLEB128();
          cur_token_pos_ = Utils::AddWithWrapAround(
              cur_token_pos_, stream.ReadSLEB128<int32_t>());
        }
        byte_index_ = stream.Position();
 
        if ((cur_kind_ & kind_mask_) != 0) {
          return true;  // Current is valid.
        }
      }
      return false;
    }

PcOffset()

uword dart::PcDescriptors::Iterator::PcOffset ( ) const

inline

Definition at line 6127 of file object.h.

{ return cur_pc_offset_; }

TokenPos()

TokenPosition dart::PcDescriptors::Iterator::TokenPos ( ) const

inline

Definition at line 6129 of file object.h.

                                   {
      return TokenPosition::Deserialize(cur_token_pos_);
    }

TryIndex()

intptr_t dart::PcDescriptors::Iterator::TryIndex ( ) const

inline

Definition at line 6132 of file object.h.

{ return cur_try_index_; }

YieldIndex()

intptr_t dart::PcDescriptors::Iterator::YieldIndex ( ) const

inline

Definition at line 6133 of file object.h.

{ return cur_yield_index_; }

Friends And Related Symbol Documentation

PcDescriptors

friend class PcDescriptors

friend

Definition at line 6139 of file object.h.

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

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