dart::kernel::SimpleExpressionConverter Class Reference

Public Member Functions
	SimpleExpressionConverter (TranslationHelper *translation_helper, KernelReaderHelper *reader_helper)
bool	IsSimple (intptr_t kernel_offset)
const Instance &	SimpleValue ()
Zone *	zone () const

Detailed Description

Definition at line 39 of file kernel_loader.cc.

Constructor & Destructor Documentation

SimpleExpressionConverter()

dart::kernel::SimpleExpressionConverter::SimpleExpressionConverter ( TranslationHelper *  translation_helper, KernelReaderHelper *  reader_helper  )

inline

Definition at line 41 of file kernel_loader.cc.

      : translation_helper_(*translation_helper),
        zone_(translation_helper_.zone()),
        simple_value_(nullptr),
        helper_(reader_helper) {}

Member Function Documentation

IsSimple()

bool dart::kernel::SimpleExpressionConverter::IsSimple ( intptr_t  kernel_offset )

inline

Definition at line 48 of file kernel_loader.cc.

                                        {
    AlternativeReadingScope alt(&helper_->reader_, kernel_offset);
    uint8_t payload = 0;
    Tag tag = helper_->ReadTag(&payload);  // read tag.
    switch (tag) {
      case kBigIntLiteral: {
        helper_->ReadPosition();
        const String& literal_str =
            H.DartString(helper_->ReadStringReference(),
                         Heap::kOld);  // read index into string table.
        simple_value_ = &Integer::ZoneHandle(Z, Integer::New(literal_str));
        if (simple_value_->IsNull()) {
          H.ReportError("Integer literal %s is out of range",
                        literal_str.ToCString());
          UNREACHABLE();
        }
        *simple_value_ = H.Canonicalize(*simple_value_);
        return true;
      }
      case kStringLiteral:
        helper_->ReadPosition();
        simple_value_ = &H.DartSymbolPlain(
            helper_->ReadStringReference());  // read index into string table.
        return true;
      case kSpecializedIntLiteral:
        helper_->ReadPosition();
        simple_value_ =
            &Integer::ZoneHandle(Z, Integer::New(static_cast<int32_t>(payload) -
                                                     SpecializedIntLiteralBias,
                                                 Heap::kOld));
        *simple_value_ = H.Canonicalize(*simple_value_);
        return true;
      case kNegativeIntLiteral:
        helper_->ReadPosition();
        simple_value_ = &Integer::ZoneHandle(
            Z, Integer::New(-static_cast<int64_t>(helper_->ReadUInt()),
                            Heap::kOld));  // read value.
        *simple_value_ = H.Canonicalize(*simple_value_);
        return true;
      case kPositiveIntLiteral:
        helper_->ReadPosition();
        simple_value_ = &Integer::ZoneHandle(
            Z, Integer::New(static_cast<int64_t>(helper_->ReadUInt()),
                            Heap::kOld));  // read value.
        *simple_value_ = H.Canonicalize(*simple_value_);
        return true;
      case kDoubleLiteral:
        helper_->ReadPosition();
        simple_value_ = &Double::ZoneHandle(
            Z, Double::New(helper_->ReadDouble(), Heap::kOld));  // read value.
        *simple_value_ = H.Canonicalize(*simple_value_);
        return true;
      case kTrueLiteral:
        helper_->ReadPosition();
        simple_value_ = &Bool::Handle(Z, Bool::Get(true).ptr());
        return true;
      case kFalseLiteral:
        helper_->ReadPosition();
        simple_value_ = &Bool::Handle(Z, Bool::Get(false).ptr());
        return true;
      case kNullLiteral:
        helper_->ReadPosition();
        simple_value_ = &Instance::ZoneHandle(Z, Instance::null());
        return true;
      default:
        return false;
    }
  }

SimpleValue()

const Instance & dart::kernel::SimpleExpressionConverter::SimpleValue ( )

inline

Definition at line 117 of file kernel_loader.cc.

{ return *simple_value_; }

zone()

Zone * dart::kernel::SimpleExpressionConverter::zone ( ) const

inline

Definition at line 118 of file kernel_loader.cc.

{ return zone_; }

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

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