dart::compiler::ffi::NativePrimitiveType Class Reference

#include <native_type.h>

Inheritance diagram for dart::compiler::ffi::NativePrimitiveType:

Public Member Functions
	NativePrimitiveType (PrimitiveType rep)
PrimitiveType	representation () const
virtual bool	IsPrimitive () const
virtual bool	IsInt () const
virtual bool	IsFloat () const
virtual bool	IsVoid () const
virtual bool	IsSigned () const
virtual intptr_t	SizeInBytes () const
virtual intptr_t	AlignmentInBytesStack (bool is_vararg=false) const
virtual intptr_t	AlignmentInBytesField () const
virtual bool	ContainsOnlyFloats (Range range) const
virtual bool	ContainsUnalignedMembers (intptr_t offset=0) const
virtual bool	IsExpressibleAsRepresentation () const
virtual Representation	AsRepresentation () const
virtual bool	Equals (const NativeType &other) const
virtual NativePrimitiveType &	Split (Zone *zone, intptr_t part) const
virtual void	PrintTo (BaseTextBuffer *f, bool multi_line=false, bool verbose=true) const
virtual intptr_t	NumPrimitiveMembersRecursive () const
virtual const NativePrimitiveType &	FirstPrimitiveMember () const
virtual intptr_t	PrimitivePairMembers (const NativePrimitiveType **first, const NativePrimitiveType **second, intptr_t offset_in_members=0) const
virtual	~NativePrimitiveType ()
Public Member Functions inherited from dart::compiler::ffi::NativeType
const NativePrimitiveType &	AsPrimitive () const
virtual bool	IsArray () const
const NativeArrayType &	AsArray () const
virtual bool	IsCompound () const
const NativeCompoundType &	AsCompound () const
virtual bool	IsStruct () const
const NativeStructType &	AsStruct () const
Representation	AsRepresentationOverApprox (Zone *zone_) const
const NativeType &	WidenTo4Bytes (Zone *zone) const
const NativeType &	WidenTo8Bytes (Zone *zone) const
const NativeType &	Extend (Zone *zone, ExtensionStrategy extension) const
const char *	ToCString (Zone *zone, bool multi_line=false, bool verbose=true) const
const char *	ToCString () const
virtual	~NativeType ()
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
Static Public Member Functions inherited from dart::compiler::ffi::NativeType
static const NativeType *	FromAbstractType (Zone *zone, const AbstractType &type, const char **error)
static const NativeType &	FromTypedDataClassId (Zone *zone, classid_t class_id)
static NativePrimitiveType &	FromRepresentation (Zone *zone, Representation rep)
Protected Member Functions inherited from dart::compiler::ffi::NativeType
	NativeType ()

Detailed Description

Definition at line 221 of file native_type.h.

Constructor & Destructor Documentation

NativePrimitiveType()

dart::compiler::ffi::NativePrimitiveType::NativePrimitiveType ( PrimitiveType  rep )

inlineexplicit

Definition at line 223 of file native_type.h.

: representation_(rep) {}

~NativePrimitiveType()

virtual dart::compiler::ffi::NativePrimitiveType::~NativePrimitiveType ( )

inlinevirtual

Definition at line 263 of file native_type.h.

{}

Member Function Documentation

AlignmentInBytesField()

intptr_t dart::compiler::ffi::NativePrimitiveType::AlignmentInBytesField ( ) const

virtual

Implements dart::compiler::ffi::NativeType.

Definition at line 174 of file native_type.cc.

                                                          {
  switch (CallingConventions::kFieldAlignment) {
    case kAlignedToValueSize:
      // The default is to align fields to their own size.
      return SizeInBytes();
    case kAlignedToValueSizeBut8AlignedTo4: {
      // However, on some 32-bit architectures, 8-byte fields are only aligned
      // to 4 bytes.
      if (SizeInBytes() == 8) {
        return 4;
      }
      return SizeInBytes();
    }
    default:
      UNREACHABLE_THIS();
  }
}

AlignmentInBytesStack()

intptr_t dart::compiler::ffi::NativePrimitiveType::AlignmentInBytesStack ( bool  is_vararg = false ) const

virtual

Implements dart::compiler::ffi::NativeType.

Definition at line 154 of file native_type.cc.

                                                                        {
  const auto alignment =
      is_vararg ? CallingConventions::kArgumentStackAlignmentVarArgs
                : CallingConventions::kArgumentStackAlignment;
  switch (alignment) {
    case kAlignedToWordSize:
      // The default is to align stack arguments to word size.
      return compiler::target::kWordSize;
    case kAlignedToWordSizeAndValueSize:
      // However, arm32+riscv32 align to the greater of word size or value size.
      return Utils::Maximum(SizeInBytes(),
                            static_cast<intptr_t>(compiler::target::kWordSize));
    case kAlignedToValueSize:
      // iOS on arm64 only aligns to size.
      return SizeInBytes();
    default:
      UNREACHABLE_THIS();
  }
}

AsRepresentation()

Representation dart::compiler::ffi::NativePrimitiveType::AsRepresentation ( ) const

virtual

Reimplemented from dart::compiler::ffi::NativeType.

Definition at line 313 of file native_type.cc.

                                                           {
  ASSERT(IsExpressibleAsRepresentation());
  switch (representation_) {
    case kInt8:
      return kUnboxedInt8;
    case kUint8:
      return kUnboxedUint8;
    case kInt16:
      return kUnboxedInt16;
    case kUint16:
      return kUnboxedUint16;
    case kInt32:
      return kUnboxedInt32;
    case kUint32:
      return kUnboxedUint32;
    case kInt64:
    case kUint64:
      return kUnboxedInt64;
    case kFloat:
      return kUnboxedFloat;
    case kDouble:
      return kUnboxedDouble;
    case kVoid:
      return kUnboxedIntPtr;
    default:
      UNREACHABLE_THIS();
  }
}

ContainsOnlyFloats()

bool dart::compiler::ffi::NativePrimitiveType::ContainsOnlyFloats ( Range  range ) const

virtual

Implements dart::compiler::ffi::NativeType.

Definition at line 886 of file native_type.cc.

                                                              {
  const auto this_range = Range::StartAndEnd(0, SizeInBytes());
  ASSERT(this_range.Contains(range));
 
  return IsFloat();
}

ContainsUnalignedMembers()

bool dart::compiler::ffi::NativePrimitiveType::ContainsUnalignedMembers ( intptr_t  offset = 0 ) const

virtual

Implements dart::compiler::ffi::NativeType.

Definition at line 1003 of file native_type.cc.

                                                                        {
  return offset % AlignmentInBytesField() != 0;
}

Equals()

bool dart::compiler::ffi::NativePrimitiveType::Equals ( const NativeType &  other ) const

virtual

Reimplemented from dart::compiler::ffi::NativeType.

Definition at line 343 of file native_type.cc.

                                                              {
  if (!other.IsPrimitive()) {
    return false;
  }
  return other.AsPrimitive().representation_ == representation_;
}

FirstPrimitiveMember()

const NativePrimitiveType & dart::compiler::ffi::NativePrimitiveType::FirstPrimitiveMember ( ) const

virtual

Implements dart::compiler::ffi::NativeType.

Definition at line 836 of file native_type.cc.

                                                                           {
  return *this;
}

IsExpressibleAsRepresentation()

bool dart::compiler::ffi::NativePrimitiveType::IsExpressibleAsRepresentation ( ) const

virtual

Reimplemented from dart::compiler::ffi::NativeType.

Definition at line 284 of file native_type.cc.

                                                              {
  switch (representation_) {
    case kInt24:
    case kUint24:
    case kInt40:
    case kUint40:
    case kInt48:
    case kUint48:
    case kInt56:
    case kUint56:
    case kHalfDouble:
      return false;
    case kInt8:
    case kUint8:
    case kInt16:
    case kUint16:
    case kInt32:
    case kUint32:
    case kInt64:
    case kUint64:  // We don't actually have a kUnboxedUint64.
    case kFloat:
    case kDouble:
    case kVoid:
      return true;
    default:
      UNREACHABLE_THIS();  // Make MSVC happy.
  }
}

IsFloat()

bool dart::compiler::ffi::NativePrimitiveType::IsFloat ( ) const

virtual

Reimplemented from dart::compiler::ffi::NativeType.

Definition at line 90 of file native_type.cc.

                                        {
  return representation_ == kFloat || representation_ == kDouble ||
         representation_ == kHalfDouble;
}

IsInt()

bool dart::compiler::ffi::NativePrimitiveType::IsInt ( ) const

virtual

Reimplemented from dart::compiler::ffi::NativeType.

Definition at line 66 of file native_type.cc.

                                      {
  switch (representation_) {
    case kInt8:
    case kUint8:
    case kInt16:
    case kUint16:
    case kInt24:
    case kUint24:
    case kInt32:
    case kUint32:
    case kInt40:
    case kUint40:
    case kInt48:
    case kUint48:
    case kInt56:
    case kUint56:
    case kInt64:
    case kUint64:
      return true;
    default:
      return false;
  }
}

IsPrimitive()

virtual bool dart::compiler::ffi::NativePrimitiveType::IsPrimitive ( ) const

inlinevirtual

Reimplemented from dart::compiler::ffi::NativeType.

Definition at line 227 of file native_type.h.

{ return true; }

IsSigned()

bool dart::compiler::ffi::NativePrimitiveType::IsSigned ( ) const

virtual

Reimplemented from dart::compiler::ffi::NativeType.

Definition at line 99 of file native_type.cc.

                                         {
  ASSERT(IsInt() || IsFloat());
  switch (representation_) {
    case kInt8:
    case kInt16:
    case kInt24:
    case kInt32:
    case kInt40:
    case kInt48:
    case kInt56:
    case kInt64:
    case kFloat:
    case kDouble:
    case kHalfDouble:
      return true;
    case kUint8:
    case kUint16:
    case kUint24:
    case kUint32:
    case kUint40:
    case kUint48:
    case kUint56:
    case kUint64:
    default:
      return false;
  }
}

IsVoid()

bool dart::compiler::ffi::NativePrimitiveType::IsVoid ( ) const

virtual

Reimplemented from dart::compiler::ffi::NativeType.

Definition at line 95 of file native_type.cc.

                                       {
  return representation_ == kVoid;
}

NumPrimitiveMembersRecursive()

intptr_t dart::compiler::ffi::NativePrimitiveType::NumPrimitiveMembersRecursive ( ) const

virtual

Implements dart::compiler::ffi::NativeType.

Definition at line 812 of file native_type.cc.

                                                                 {
  return 1;
}

PrimitivePairMembers()

intptr_t dart::compiler::ffi::NativePrimitiveType::PrimitivePairMembers ( const NativePrimitiveType **  first, const NativePrimitiveType **  second, intptr_t  offset_in_members = 0  ) const

virtual

Implements dart::compiler::ffi::NativeType.

Definition at line 854 of file native_type.cc.

                                      {
  if (offset_in_members == 0) *first = this;
  if (offset_in_members == 1) *second = this;
  return offset_in_members + 1;
}

PrintTo()

void dart::compiler::ffi::NativePrimitiveType::PrintTo ( BaseTextBuffer *  f, bool  multi_line = false, bool  verbose = true  ) const

virtual

Reimplemented from dart::compiler::ffi::NativeType.

Definition at line 721 of file native_type.cc.

                                                      {
  f->Printf("%s", PrimitiveTypeToCString(representation_));
}

representation()

PrimitiveType dart::compiler::ffi::NativePrimitiveType::representation ( ) const

inline

Definition at line 225 of file native_type.h.

{ return representation_; }

SizeInBytes()

intptr_t dart::compiler::ffi::NativePrimitiveType::SizeInBytes ( ) const

virtual

Implements dart::compiler::ffi::NativeType.

Definition at line 150 of file native_type.cc.

                                                {
  return fundamental_size_in_bytes[representation_];
}

Split()

NativePrimitiveType & dart::compiler::ffi::NativePrimitiveType::Split ( Zone *  zone, intptr_t  part  ) const

virtual

Reimplemented from dart::compiler::ffi::NativeType.

Definition at line 396 of file native_type.cc.

                                                                      {
  ASSERT(index == 0 || index == 1);
  auto new_rep = split_fundamental(representation());
  return *new (zone) NativePrimitiveType(new_rep);
}

---

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

• third_party/dart-lang/sdk/runtime/vm/compiler/ffi/native_type.h
• third_party/dart-lang/sdk/runtime/vm/compiler/ffi/native_type.cc