dart::kernel::KernelFingerprintHelper Class Reference

Inheritance diagram for dart::kernel::KernelFingerprintHelper:

Public Member Functions
	KernelFingerprintHelper (Zone *zone, TranslationHelper *translation_helper, const TypedDataView &data, intptr_t data_program_offset)
virtual	~KernelFingerprintHelper ()
uint32_t	CalculateFieldFingerprint ()
uint32_t	CalculateFunctionFingerprint ()
Public Member Functions inherited from dart::kernel::KernelReaderHelper
	KernelReaderHelper (Zone *zone, TranslationHelper *translation_helper, const TypedDataBase &data, intptr_t data_program_offset)
virtual	~KernelReaderHelper ()=default
void	SetOffset (intptr_t offset)
intptr_t	ReadListLength ()
NameIndex	ReadCanonicalNameReference ()
virtual void	ReportUnexpectedTag (const char *variant, Tag tag)
void	ReadUntilFunctionNode ()
Tag	PeekTag (uint8_t *payload=nullptr)

Static Public Member Functions
static uint32_t	CalculateHash (uint32_t current, uint32_t val)

Additional Inherited Members
Protected Member Functions inherited from dart::kernel::KernelReaderHelper
virtual void	set_current_script_id (intptr_t id)
virtual void	RecordTokenPosition (TokenPosition position)
intptr_t	ReaderOffset () const
intptr_t	ReaderSize () const
void	SkipBytes (intptr_t skip)
bool	ReadBool ()
uint8_t	ReadByte ()
uint32_t	ReadUInt ()
uint32_t	ReadUInt32 ()
uint32_t	PeekUInt ()
double	ReadDouble ()
uint32_t	PeekListLength ()
StringIndex	ReadStringReference ()
NameIndex	ReadInterfaceMemberNameReference ()
StringIndex	ReadNameAsStringIndex ()
const String &	ReadNameAsMethodName ()
const String &	ReadNameAsGetterName ()
const String &	ReadNameAsSetterName ()
const String &	ReadNameAsFieldName ()
void	SkipFlags ()
void	SkipStringReference ()
void	SkipConstantReference ()
void	SkipCanonicalNameReference ()
void	SkipInterfaceMemberNameReference ()
void	SkipDartType ()
void	SkipOptionalDartType ()
void	SkipInterfaceType (bool simple)
void	SkipFunctionType (bool simple)
void	SkipStatementList ()
void	SkipListOfExpressions ()
void	SkipListOfNamedExpressions ()
void	SkipListOfDartTypes ()
void	SkipListOfStrings ()
void	SkipListOfVariableDeclarations ()
void	SkipListOfCanonicalNameReferences ()
void	SkipTypeParametersList ()
void	SkipInitializer ()
void	SkipExpression ()
void	SkipStatement ()
void	SkipFunctionNode ()
void	SkipName ()
void	SkipArguments ()
void	SkipVariableDeclaration ()
void	SkipLibraryCombinator ()
void	SkipLibraryDependency ()
TokenPosition	ReadPosition ()
Tag	ReadTag (uint8_t *payload=nullptr)
uint8_t	ReadFlags ()
Nullability	ReadNullability ()
Variance	ReadVariance ()
intptr_t	SourceTableSize ()
intptr_t	GetOffsetForSourceInfo (intptr_t index)
String &	SourceTableUriFor (intptr_t index)
const String &	GetSourceFor (intptr_t index)
TypedDataPtr	GetLineStartsFor (intptr_t index)
String &	SourceTableImportUriFor (intptr_t index)
TypedDataViewPtr	GetConstantCoverageFor (intptr_t index)
Protected Attributes inherited from dart::kernel::KernelReaderHelper
Zone *	zone_
TranslationHelper &	translation_helper_
Reader	reader_
intptr_t	data_program_offset_

Detailed Description

Definition at line 14 of file kernel_fingerprints.cc.

Constructor & Destructor Documentation

KernelFingerprintHelper()

dart::kernel::KernelFingerprintHelper::KernelFingerprintHelper ( Zone *  zone, TranslationHelper *  translation_helper, const TypedDataView &  data, intptr_t  data_program_offset  )

inline

Definition at line 16 of file kernel_fingerprints.cc.

      : KernelReaderHelper(zone, translation_helper, data, data_program_offset),
        hash_(0) {}

~KernelFingerprintHelper()

virtual dart::kernel::KernelFingerprintHelper::~KernelFingerprintHelper ( )

inlinevirtual

Definition at line 23 of file kernel_fingerprints.cc.

{}

Member Function Documentation

CalculateFieldFingerprint()

uint32_t dart::kernel::KernelFingerprintHelper::CalculateFieldFingerprint

(

)

Definition at line 876 of file kernel_fingerprints.cc.

                                                            {
  hash_ = 0;
  FieldHelper field_helper(this);
 
  field_helper.ReadUntilExcluding(FieldHelper::kName);
  const String& name = ReadNameAsFieldName();  // read name.
  field_helper.SetJustRead(FieldHelper::kName);
 
  field_helper.ReadUntilExcluding(FieldHelper::kType);
  CalculateDartTypeFingerprint();  // read type.
  field_helper.SetJustRead(FieldHelper::kType);
 
  if (ReadTag() == kSomething) {
    if (PeekTag() == kFunctionExpression) {
      AlternativeReadingScope alt(&reader_);
      CalculateExpressionFingerprint();
    }
    SkipExpression();
  }
 
  BuildHash(name.Hash());
  BuildHash(field_helper.flags_);
  BuildHash(field_helper.annotation_count_);
  return hash_;
}

CalculateFunctionFingerprint()

uint32_t dart::kernel::KernelFingerprintHelper::CalculateFunctionFingerprint

(

)

Definition at line 933 of file kernel_fingerprints.cc.

                                                               {
  hash_ = 0;
  Tag tag = PeekTag();
  if (tag == kField) {
    return CalculateFieldFingerprint();
  } else if (tag == kConstructor) {
    CalculateConstructorFingerprint();
    return hash_;
  }
  ProcedureHelper procedure_helper(this);
  procedure_helper.ReadUntilExcluding(ProcedureHelper::kName);
  const String& name = ReadNameAsMethodName();  // Read name.
  procedure_helper.SetJustRead(ProcedureHelper::kName);
 
  procedure_helper.ReadUntilExcluding(ProcedureHelper::kFunction);
  CalculateFunctionNodeFingerprint();
 
  BuildHash(procedure_helper.kind_);
  BuildHash(procedure_helper.flags_);
  BuildHash(procedure_helper.annotation_count_);
  BuildHash(procedure_helper.stub_kind_);
  BuildHash(name.Hash());
  return hash_;
}

CalculateHash()

static uint32_t dart::kernel::KernelFingerprintHelper::CalculateHash ( uint32_t  current, uint32_t  val  )

inlinestatic

Definition at line 27 of file kernel_fingerprints.cc.

                                                                {
    return current * 31 + val;
  }

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

• third_party/dart-lang/sdk/runtime/vm/compiler/frontend/kernel_fingerprints.cc