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Static Public Member Functions | Protected Member Functions | Static Protected Member Functions | Private Attributes | List of all members
v8::internal::PropertyHandlerCompiler Class Reference

#include <handler-compiler.h>

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Static Public Member Functions

static Handle< Code > Find (Handle< Name > name, Handle< Map > map, Code::Kind kind, CacheHolderFlag cache_holder, Code::StubType type)
 

Protected Member Functions

 PropertyHandlerCompiler (Isolate *isolate, Code::Kind kind, Handle< HeapType > type, Handle< JSObject > holder, CacheHolderFlag cache_holder)
 
virtual ~PropertyHandlerCompiler ()
 
virtual Register FrontendHeader (Register object_reg, Handle< Name > name, Label *miss)
 
virtual void FrontendFooter (Handle< Name > name, Label *miss)
 
Register Frontend (Register object_reg, Handle< Name > name)
 
void NonexistentFrontendHeader (Handle< Name > name, Label *miss, Register scratch1, Register scratch2)
 
Register CheckPrototypes (Register object_reg, Register holder_reg, Register scratch1, Register scratch2, Handle< Name > name, Label *miss, PrototypeCheckType check=CHECK_ALL_MAPS)
 
Handle< Code > GetCode (Code::Kind kind, Code::StubType type, Handle< Name > name)
 
void set_type_for_object (Handle< Object > object)
 
void set_holder (Handle< JSObject > holder)
 
Handle< HeapType > type () const
 
Handle< JSObject > holder () const
 

Static Protected Member Functions

static void GenerateFastApiCall (MacroAssembler *masm, const CallOptimization &optimization, Handle< Map > receiver_map, Register receiver, Register scratch, bool is_store, int argc, Register *values)
 
static void GenerateDictionaryNegativeLookup (MacroAssembler *masm, Label *miss_label, Register receiver, Handle< Name > name, Register r0, Register r1)
 
static void GenerateCheckPropertyCell (MacroAssembler *masm, Handle< JSGlobalObject > global, Handle< Name > name, Register scratch, Label *miss)
 

Private Attributes

Handle< HeapType > type_
 
Handle< JSObject > holder_
 

Detailed Description

Definition at line 18 of file handler-compiler.h.

Constructor & Destructor Documentation

◆ PropertyHandlerCompiler()

v8::internal::PropertyHandlerCompiler::PropertyHandlerCompiler ( Isolate *  isolate,
Code::Kind  kind,
Handle< HeapType >  type,
Handle< JSObject >  holder,
CacheHolderFlag  cache_holder 
)
inlineprotected

Definition at line 24 of file handler-compiler.h.

27  : PropertyAccessCompiler(isolate, kind, cache_holder),
28  type_(type),
29  holder_(holder) {}
v8::internal::PropertyHandlerCompiler::holder
Handle< JSObject > holder() const
Definition: handler-compiler.h:92
v8::internal::PropertyHandlerCompiler::type
Handle< HeapType > type() const
Definition: handler-compiler.h:91

◆ ~PropertyHandlerCompiler()

virtual v8::internal::PropertyHandlerCompiler::~PropertyHandlerCompiler ( )
inlineprotectedvirtual

Definition at line 31 of file handler-compiler.h.

31 {}

Member Function Documentation

◆ CheckPrototypes()

Register v8::internal::PropertyHandlerCompiler::CheckPrototypes ( Register  object_reg,
Register  holder_reg,
Register  scratch1,
Register  scratch2,
Handle< Name >  name,
Label *  miss,
PrototypeCheckType  check = CHECK_ALL_MAPS 
)
protected

Referenced by v8::internal::NamedLoadHandlerCompiler::FrontendHeader(), and v8::internal::NamedStoreHandlerCompiler::FrontendHeader().

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◆ Find()

Handle< Code > v8::internal::PropertyHandlerCompiler::Find ( Handle< Name >  name,
Handle< Map >  map,
Code::Kind  kind,
CacheHolderFlag  cache_holder,
Code::StubType  type 
)
static

Definition at line 16 of file handler-compiler.cc.

20  {
21  Code::Flags flags = Code::ComputeHandlerFlags(kind, type, cache_holder);
22  Object* probe = stub_holder->FindInCodeCache(*name, flags);
23  if (probe->IsCode()) return handle(Code::cast(probe));
24  return Handle<Code>::null();
25 }
v8::internal::Code::ComputeHandlerFlags
static Flags ComputeHandlerFlags(Kind handler_kind, StubType type=NORMAL, CacheHolderFlag holder=kCacheOnReceiver)
Definition: objects-inl.h:4975
v8::internal::Code::Flags
uint32_t Flags
Definition: objects.h:4929
v8::internal::Handle::null
static Handle< T > null()
Definition: handles.h:123
name
enable harmony numeric enable harmony object literal extensions Optimize object Array DOM strings and string trace pretenuring decisions of HAllocate instructions Enables optimizations which favor memory size over execution speed maximum source size in bytes considered for a single inlining maximum cumulative number of AST nodes considered for inlining trace the tracking of allocation sites deoptimize every n garbage collections perform array bounds checks elimination analyze liveness of environment slots and zap dead values flushes the cache of optimized code for closures on every GC allow uint32 values on optimize frames if they are used only in safe operations track concurrent recompilation artificial compilation delay in ms do not emit check maps for constant values that have a leaf deoptimize the optimized code if the layout of the maps changes enable context specialization in TurboFan execution budget before interrupt is triggered max percentage of megamorphic generic ICs to allow optimization enable use of SAHF instruction if enable use of VFP3 instructions if available enable use of NEON instructions if enable use of SDIV and UDIV instructions if enable use of MLS instructions if enable loading bit constant by means of movw movt instruction enable unaligned accesses for enable use of d16 d31 registers on ARM this requires VFP3 force all emitted branches to be in long enable alignment of csp to bytes on platforms which prefer the register to always be expose gc extension under the specified name show built in functions in stack traces use random jit cookie to mask large constants minimum length for automatic enable preparsing CPU profiler sampling interval in microseconds trace out of bounds accesses to external arrays default size of stack region v8 is allowed to maximum length of function source code printed in a stack trace min size of a semi the new space consists of two semi spaces print one trace line following each garbage collection do not print trace line after scavenger collection print cumulative GC statistics in name
Definition: flag-definitions.h:504
v8::internal::anonymous_namespace{flags.cc}::flags
Flag flags[]
Definition: flags.cc:160
v8::internal::Object
kSerializedDataOffset Object
Definition: objects-inl.h:5322
v8::internal::handle
Handle< T > handle(T *t, Isolate *isolate)
Definition: handles.h:146

References v8::internal::Code::ComputeHandlerFlags(), v8::internal::anonymous_namespace{flags.cc}::flags, v8::internal::handle(), name, v8::internal::Handle< T >::null(), and type().

Referenced by v8::internal::IC::ComputeHandler(), and v8::internal::NamedLoadHandlerCompiler::ComputeLoadNonexistent().

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◆ Frontend()

Register v8::internal::PropertyHandlerCompiler::Frontend ( Register  object_reg,
Handle< Name >  name 
)
protected

Definition at line 132 of file handler-compiler.cc.

133  {
134  Label miss;
135  Register reg = FrontendHeader(object_reg, name, &miss);
136  FrontendFooter(name, &miss);
137  return reg;
138 }
v8::internal::PropertyHandlerCompiler::FrontendFooter
virtual void FrontendFooter(Handle< Name > name, Label *miss)
Definition: handler-compiler.h:39
v8::internal::PropertyHandlerCompiler::FrontendHeader
virtual Register FrontendHeader(Register object_reg, Handle< Name > name, Label *miss)
Definition: handler-compiler.h:33

References FrontendFooter(), FrontendHeader(), and name.

Referenced by v8::internal::NamedLoadHandlerCompiler::CompileLoadCallback(), v8::internal::NamedLoadHandlerCompiler::CompileLoadConstant(), v8::internal::NamedLoadHandlerCompiler::CompileLoadField(), v8::internal::NamedLoadHandlerCompiler::CompileLoadInterceptor(), v8::internal::NamedLoadHandlerCompiler::CompileLoadViaGetter(), v8::internal::NamedStoreHandlerCompiler::CompileStoreCallback(), v8::internal::NamedStoreHandlerCompiler::CompileStoreViaSetter(), and v8::internal::NamedLoadHandlerCompiler::GenerateLoadPostInterceptor().

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◆ FrontendFooter()

virtual void v8::internal::PropertyHandlerCompiler::FrontendFooter ( Handle< Name >  name,
Label *  miss 
)
inlineprotectedvirtual

Reimplemented in v8::internal::NamedStoreHandlerCompiler, and v8::internal::NamedLoadHandlerCompiler.

Definition at line 39 of file handler-compiler.h.

39 { UNREACHABLE(); }
UNREACHABLE
#define UNREACHABLE()
Definition: logging.h:30

References UNREACHABLE.

Referenced by Frontend().

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◆ FrontendHeader()

virtual Register v8::internal::PropertyHandlerCompiler::FrontendHeader ( Register  object_reg,
Handle< Name >  name,
Label *  miss 
)
inlineprotectedvirtual

Reimplemented in v8::internal::NamedStoreHandlerCompiler, and v8::internal::NamedLoadHandlerCompiler.

Definition at line 33 of file handler-compiler.h.

34  {
35  UNREACHABLE();
36  return receiver();
37  }

References UNREACHABLE.

Referenced by Frontend(), and NonexistentFrontendHeader().

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◆ GenerateCheckPropertyCell()

static void v8::internal::PropertyHandlerCompiler::GenerateCheckPropertyCell ( MacroAssembler *  masm,
Handle< JSGlobalObject >  global,
Handle< Name >  name,
Register  scratch,
Label *  miss 
)
staticprotected

Referenced by NonexistentFrontendHeader().

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◆ GenerateDictionaryNegativeLookup()

static void v8::internal::PropertyHandlerCompiler::GenerateDictionaryNegativeLookup ( MacroAssembler *  masm,
Label *  miss_label,
Register  receiver,
Handle< Name >  name,
Register  r0,
Register  r1 
)
staticprotected

Referenced by NonexistentFrontendHeader().

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◆ GenerateFastApiCall()

static void v8::internal::PropertyHandlerCompiler::GenerateFastApiCall ( MacroAssembler *  masm,
const CallOptimization &  optimization,
Handle< Map >  receiver_map,
Register  receiver,
Register  scratch,
bool  is_store,
int  argc,
Register *  values 
)
staticprotected

Referenced by v8::internal::NamedLoadHandlerCompiler::CompileLoadCallback(), and v8::internal::NamedStoreHandlerCompiler::CompileStoreCallback().

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◆ GetCode()

Handle< Code > v8::internal::PropertyHandlerCompiler::GetCode ( Code::Kind  kind,
Code::StubType  type,
Handle< Name >  name 
)
protected

Definition at line 72 of file handler-compiler.cc.

74  {
75  Code::Flags flags = Code::ComputeHandlerFlags(kind, type, cache_holder());
76  Handle<Code> code = GetCodeWithFlags(flags, name);
77  PROFILE(isolate(), CodeCreateEvent(Logger::STUB_TAG, *code, *name));
78  return code;
79 }
PROFILE
#define PROFILE(IsolateGetter, Call)
Definition: cpu-profiler.h:181

References v8::internal::Code::ComputeHandlerFlags(), v8::internal::anonymous_namespace{flags.cc}::flags, name, PROFILE, and type().

Referenced by v8::internal::NamedLoadHandlerCompiler::CompileLoadCallback(), v8::internal::NamedLoadHandlerCompiler::CompileLoadConstant(), v8::internal::NamedLoadHandlerCompiler::CompileLoadField(), v8::internal::NamedLoadHandlerCompiler::CompileLoadInterceptor(), v8::internal::NamedLoadHandlerCompiler::CompileLoadNonexistent(), v8::internal::NamedLoadHandlerCompiler::CompileLoadViaGetter(), v8::internal::NamedStoreHandlerCompiler::CompileStoreCallback(), v8::internal::NamedStoreHandlerCompiler::CompileStoreField(), v8::internal::NamedStoreHandlerCompiler::CompileStoreTransition(), and v8::internal::NamedStoreHandlerCompiler::CompileStoreViaSetter().

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◆ holder()

Handle<JSObject> v8::internal::PropertyHandlerCompiler::holder ( ) const
inlineprotected

Definition at line 92 of file handler-compiler.h.

92 { return holder_; }

References holder_.

Referenced by v8::internal::NamedStoreHandlerCompiler::CompileStoreTransition(), v8::internal::NamedLoadHandlerCompiler::GenerateLoadPostInterceptor(), NonexistentFrontendHeader(), and set_holder().

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◆ NonexistentFrontendHeader()

void v8::internal::PropertyHandlerCompiler::NonexistentFrontendHeader ( Handle< Name >  name,
Label *  miss,
Register  scratch1,
Register  scratch2 
)
protected

Definition at line 141 of file handler-compiler.cc.

144  {
145  Register holder_reg;
146  Handle<Map> last_map;
147  if (holder().is_null()) {
148  holder_reg = receiver();
149  last_map = IC::TypeToMap(*type(), isolate());
150  // If |type| has null as its prototype, |holder()| is
151  // Handle<JSObject>::null().
152  DCHECK(last_map->prototype() == isolate()->heap()->null_value());
153  } else {
154  holder_reg = FrontendHeader(receiver(), name, miss);
155  last_map = handle(holder()->map());
156  }
157 
158  if (last_map->is_dictionary_map()) {
159  if (last_map->IsJSGlobalObjectMap()) {
160  Handle<JSGlobalObject> global =
161  holder().is_null()
162  ? Handle<JSGlobalObject>::cast(type()->AsConstant()->Value())
163  : Handle<JSGlobalObject>::cast(holder());
164  GenerateCheckPropertyCell(masm(), global, name, scratch1, miss);
165  } else {
166  if (!name->IsUniqueName()) {
167  DCHECK(name->IsString());
168  name = factory()->InternalizeString(Handle<String>::cast(name));
169  }
170  DCHECK(holder().is_null() ||
171  holder()->property_dictionary()->FindEntry(name) ==
172  NameDictionary::kNotFound);
173  GenerateDictionaryNegativeLookup(masm(), miss, holder_reg, name, scratch1,
174  scratch2);
175  }
176  }
177 }
v8::internal::Handle::cast
static Handle< T > cast(Handle< S > that)
Definition: handles.h:116
v8::internal::HashTable::kNotFound
static const int kNotFound
Definition: objects.h:3283
v8::internal::IC::TypeToMap
static Handle< Map > TypeToMap(HeapType *type, Isolate *isolate)
Definition: ic.cc:719
v8::internal::PropertyHandlerCompiler::GenerateDictionaryNegativeLookup
static void GenerateDictionaryNegativeLookup(MacroAssembler *masm, Label *miss_label, Register receiver, Handle< Name > name, Register r0, Register r1)
v8::internal::PropertyHandlerCompiler::GenerateCheckPropertyCell
static void GenerateCheckPropertyCell(MacroAssembler *masm, Handle< JSGlobalObject > global, Handle< Name > name, Register scratch, Label *miss)
map
enable harmony numeric enable harmony object literal extensions Optimize object Array DOM strings and string trace pretenuring decisions of HAllocate instructions Enables optimizations which favor memory size over execution speed maximum source size in bytes considered for a single inlining maximum cumulative number of AST nodes considered for inlining trace the tracking of allocation sites deoptimize every n garbage collections perform array bounds checks elimination analyze liveness of environment slots and zap dead values flushes the cache of optimized code for closures on every GC allow uint32 values on optimize frames if they are used only in safe operations track concurrent recompilation artificial compilation delay in ms do not emit check maps for constant values that have a leaf map
Definition: flag-definitions.h:328
DCHECK
#define DCHECK(condition)
Definition: logging.h:205

References v8::internal::Handle< T >::cast(), DCHECK, FrontendHeader(), GenerateCheckPropertyCell(), GenerateDictionaryNegativeLookup(), v8::internal::handle(), holder(), v8::internal::HashTable< Derived, Shape, Key >::kNotFound, map, name, type(), and v8::internal::IC::TypeToMap().

Referenced by v8::internal::NamedLoadHandlerCompiler::CompileLoadNonexistent(), and v8::internal::NamedStoreHandlerCompiler::CompileStoreTransition().

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◆ set_holder()

void v8::internal::PropertyHandlerCompiler::set_holder ( Handle< JSObject >  holder)
inlineprotected

Definition at line 90 of file handler-compiler.h.

90 { holder_ = holder; }

References holder(), and holder_.

Referenced by v8::internal::NamedStoreHandlerCompiler::CompileStoreTransition(), and v8::internal::NamedLoadHandlerCompiler::GenerateLoadPostInterceptor().

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◆ set_type_for_object()

void v8::internal::PropertyHandlerCompiler::set_type_for_object ( Handle< Object >  object)
protected

Definition at line 82 of file handler-compiler.cc.

82  {
83  type_ = IC::CurrentTypeOf(object, isolate());
84 }
v8::internal::IC::CurrentTypeOf
static Handle< HeapType > CurrentTypeOf(Handle< Object > object, Isolate *isolate)
Definition: ic.cc:712

References v8::internal::IC::CurrentTypeOf(), and type_.

Referenced by v8::internal::NamedLoadHandlerCompiler::FrontendHeader(), and v8::internal::NamedLoadHandlerCompiler::GenerateLoadPostInterceptor().

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◆ type()

Handle<HeapType> v8::internal::PropertyHandlerCompiler::type ( ) const
inlineprotected

Definition at line 91 of file handler-compiler.h.

91 { return type_; }

References type_.

Referenced by v8::internal::NamedLoadHandlerCompiler::CompileLoadCallback(), v8::internal::NamedLoadHandlerCompiler::CompileLoadInterceptor(), v8::internal::NamedLoadHandlerCompiler::CompileLoadViaGetter(), v8::internal::NamedStoreHandlerCompiler::CompileStoreViaSetter(), v8::internal::NamedLoadHandlerCompiler::ComputeLoadNonexistent(), Find(), v8::internal::NamedLoadHandlerCompiler::FrontendHeader(), GetCode(), and NonexistentFrontendHeader().

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Member Data Documentation

◆ holder_

Handle<JSObject> v8::internal::PropertyHandlerCompiler::holder_
private

Definition at line 96 of file handler-compiler.h.

Referenced by holder(), and set_holder().

◆ type_

Handle<HeapType> v8::internal::PropertyHandlerCompiler::type_
private

Definition at line 95 of file handler-compiler.h.

Referenced by set_type_for_object(), and type().

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