dart::compiler::ffi::NativeCompoundType Class Reference

#include <native_type.h>

Inheritance diagram for dart::compiler::ffi::NativeCompoundType:

Public Member Functions
const NativeTypes &	members () const
virtual bool	IsCompound () const
virtual intptr_t	SizeInBytes () const
virtual intptr_t	AlignmentInBytesField () const
virtual intptr_t	AlignmentInBytesStack (bool is_vararg=false) const
virtual bool	Equals (const NativeType &other) const
virtual void	PrintTo (BaseTextBuffer *f, bool multi_line=false, bool verbose=true) const
virtual bool	ContainsOnlyFloats (Range range) const =0
intptr_t	NumberOfWordSizeChunksOnlyFloat () const
intptr_t	NumberOfWordSizeChunksNotOnlyFloat () const
virtual bool	ContainsUnalignedMembers (intptr_t offset=0) const =0
bool	ContainsHomogeneousFloats () const
virtual intptr_t	NumPrimitiveMembersRecursive () const =0
virtual const NativePrimitiveType &	FirstPrimitiveMember () const
virtual intptr_t	PrimitivePairMembers (const NativePrimitiveType **first, const NativePrimitiveType **second, intptr_t offset_in_members=0) const
Public Member Functions inherited from dart::compiler::ffi::NativeType
virtual bool	IsPrimitive () const
const NativePrimitiveType &	AsPrimitive () const
virtual bool	IsArray () const
const NativeArrayType &	AsArray () const
const NativeCompoundType &	AsCompound () const
virtual bool	IsStruct () const
const NativeStructType &	AsStruct () const
virtual bool	IsInt () const
virtual bool	IsFloat () const
virtual bool	IsVoid () const
virtual bool	IsSigned () const
virtual bool	IsExpressibleAsRepresentation () const
virtual Representation	AsRepresentation () const
Representation	AsRepresentationOverApprox (Zone *zone_) const
virtual NativeType &	Split (Zone *zone, intptr_t index) 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)

Protected Member Functions
	NativeCompoundType (const NativeTypes &members, intptr_t size, intptr_t alignment_field, intptr_t alignment_stack)
virtual void	PrintCompoundType (BaseTextBuffer *f) const =0
virtual void	PrintMemberOffset (BaseTextBuffer *f, intptr_t member_index) const
Protected Member Functions inherited from dart::compiler::ffi::NativeType
	NativeType ()

Protected Attributes
const NativeTypes &	members_
const intptr_t	size_
const intptr_t	alignment_field_
const intptr_t	alignment_stack_

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)

Detailed Description

Definition at line 319 of file native_type.h.

Constructor & Destructor Documentation

NativeCompoundType()

dart::compiler::ffi::NativeCompoundType::NativeCompoundType ( const NativeTypes &  members, intptr_t  size, intptr_t  alignment_field, intptr_t  alignment_stack  )

inlineprotected

Definition at line 366 of file native_type.h.

      : members_(members),
        size_(size),
        alignment_field_(alignment_field),
        alignment_stack_(alignment_stack) {}

Member Function Documentation

AlignmentInBytesField()

virtual intptr_t dart::compiler::ffi::NativeCompoundType::AlignmentInBytesField ( ) const

inlinevirtual

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

Definition at line 326 of file native_type.h.

{ return alignment_field_; }

AlignmentInBytesStack()

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

inlinevirtual

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

Reimplemented in dart::compiler::ffi::NativeStructType.

Definition at line 327 of file native_type.h.

                                                                       {
    return alignment_stack_;
  }

ContainsHomogeneousFloats()

bool dart::compiler::ffi::NativeCompoundType::ContainsHomogeneousFloats

(

)

const

Definition at line 1071 of file native_type.cc.

                                                         {
  return ContainsHomogeneousFloatsInternal(this->members());
}

ContainsOnlyFloats()

virtual bool dart::compiler::ffi::NativeCompoundType::ContainsOnlyFloats ( Range  range ) const

pure virtual

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

Implemented in dart::compiler::ffi::NativeStructType, and dart::compiler::ffi::NativeUnionType.

ContainsUnalignedMembers()

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

pure virtual

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

Implemented in dart::compiler::ffi::NativeStructType, and dart::compiler::ffi::NativeUnionType.

Equals()

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

virtual

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

Definition at line 358 of file native_type.cc.

                                                             {
  if (!other.IsCompound()) {
    return false;
  }
  const auto& other_compound = other.AsCompound();
  const auto& other_members = other_compound.members_;
  if (other_members.length() != members_.length()) {
    return false;
  }
  for (intptr_t i = 0; i < members_.length(); i++) {
    if (!members_[i]->Equals(*other_members[i])) {
      return false;
    }
  }
  return true;
}

FirstPrimitiveMember()

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

virtual

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

Definition at line 844 of file native_type.cc.

                                                                          {
  ASSERT(NumPrimitiveMembersRecursive() >= 1);
  for (intptr_t i = 0; i < members().length(); i++) {
    if (members_[i]->NumPrimitiveMembersRecursive() >= 1) {
      return members_[i]->FirstPrimitiveMember();
    }
  }
  UNREACHABLE_THIS();
}

IsCompound()

virtual bool dart::compiler::ffi::NativeCompoundType::IsCompound ( ) const

inlinevirtual

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

Definition at line 323 of file native_type.h.

{ return true; }

members()

const NativeTypes & dart::compiler::ffi::NativeCompoundType::members ( ) const

inline

Definition at line 321 of file native_type.h.

{ return members_; }

NumberOfWordSizeChunksNotOnlyFloat()

intptr_t dart::compiler::ffi::NativeCompoundType::NumberOfWordSizeChunksNotOnlyFloat

(

)

const

Definition at line 995 of file native_type.cc.

                                                                      {
  const intptr_t total_chunks =
      Utils::RoundUp(SizeInBytes(), compiler::target::kWordSize) /
      compiler::target::kWordSize;
  return total_chunks - NumberOfWordSizeChunksOnlyFloat();
}

NumberOfWordSizeChunksOnlyFloat()

intptr_t dart::compiler::ffi::NativeCompoundType::NumberOfWordSizeChunksOnlyFloat

(

)

const

Definition at line 978 of file native_type.cc.

                                                                   {
  // O(n^2) implementation, but only invoked for small structs.
  ASSERT(SizeInBytes() <= 16);
  const auto this_range = Range::StartAndEnd(0, SizeInBytes());
  const intptr_t size = SizeInBytes();
  intptr_t float_only_chunks = 0;
  for (intptr_t offset = 0; offset < size;
       offset += compiler::target::kWordSize) {
    const auto chunk_range =
        Range::StartAndLength(offset, compiler::target::kWordSize);
    if (ContainsOnlyFloats(chunk_range.Intersect(this_range))) {
      float_only_chunks++;
    }
  }
  return float_only_chunks;
}

NumPrimitiveMembersRecursive()

virtual intptr_t dart::compiler::ffi::NativeCompoundType::NumPrimitiveMembersRecursive ( ) const

pure virtual

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

Implemented in dart::compiler::ffi::NativeStructType, and dart::compiler::ffi::NativeUnionType.

PrimitivePairMembers()

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

virtual

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

Definition at line 874 of file native_type.cc.

                                      {
  for (intptr_t i = 0; i < members().length(); i++) {
    offset_in_members =
        members_[i]->PrimitivePairMembers(first, second, offset_in_members);
  }
  return offset_in_members;
}

PrintCompoundType()

virtual void dart::compiler::ffi::NativeCompoundType::PrintCompoundType ( BaseTextBuffer *  f ) const

protectedpure virtual

Implemented in dart::compiler::ffi::NativeStructType, and dart::compiler::ffi::NativeUnionType.

PrintMemberOffset()

virtual void dart::compiler::ffi::NativeCompoundType::PrintMemberOffset ( BaseTextBuffer *  f, intptr_t  member_index  ) const

inlineprotectedvirtual

Reimplemented in dart::compiler::ffi::NativeStructType.

Definition at line 381 of file native_type.h.

                                                              {}

PrintTo()

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

virtual

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

Definition at line 743 of file native_type.cc.

                                                     {
  PrintCompoundType(f);
  f->AddString("(");
  f->Printf("size: %" Pd "", SizeInBytes());
  if (verbose) {
    f->Printf(", field alignment: %" Pd ", ", AlignmentInBytesField());
    f->Printf("stack alignment: %" Pd ", ", AlignmentInBytesStack());
    f->AddString("members: {");
    if (multi_line) {
      f->AddString("\n  ");
    }
    for (intptr_t i = 0; i < members_.length(); i++) {
      if (i > 0) {
        if (multi_line) {
          f->AddString(",\n  ");
        } else {
          f->AddString(", ");
        }
      }
      PrintMemberOffset(f, i);
      members_[i]->PrintTo(f);
    }
    if (multi_line) {
      f->AddString("\n");
    }
    f->AddString("}");
  }
  f->AddString(")");
  if (multi_line) {
    f->AddString("\n");
  }
}

SizeInBytes()

virtual intptr_t dart::compiler::ffi::NativeCompoundType::SizeInBytes ( ) const

inlinevirtual

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

Definition at line 325 of file native_type.h.

{ return size_; }

Member Data Documentation

alignment_field_

const intptr_t dart::compiler::ffi::NativeCompoundType::alignment_field_

protected

Definition at line 377 of file native_type.h.

alignment_stack_

const intptr_t dart::compiler::ffi::NativeCompoundType::alignment_stack_

protected

Definition at line 378 of file native_type.h.

members_

const NativeTypes& dart::compiler::ffi::NativeCompoundType::members_

protected

Definition at line 375 of file native_type.h.

size_

const intptr_t dart::compiler::ffi::NativeCompoundType::size_

protected

Definition at line 376 of file native_type.h.

---

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