v8::Value Class Reference

The superclass of all JavaScript values and objects. More...

#include <v8.h>

Inheritance diagram for v8::Value:

Collaboration diagram for v8::Value:

Public Member Functions
bool	IsUndefined () const
	Returns true if this value is the undefined value. More...
bool	IsNull () const
	Returns true if this value is the null value. More...
bool	IsTrue () const
	Returns true if this value is true. More...
bool	IsFalse () const
	Returns true if this value is false. More...
bool	IsName () const
	Returns true if this value is a symbol or a string. More...
bool	IsString () const
	Returns true if this value is an instance of the String type. More...
bool	IsSymbol () const
	Returns true if this value is a symbol. More...
bool	IsFunction () const
	Returns true if this value is a function. More...
bool	IsArray () const
	Returns true if this value is an array. More...
bool	IsObject () const
	Returns true if this value is an object. More...
bool	IsBoolean () const
	Returns true if this value is boolean. More...
bool	IsNumber () const
	Returns true if this value is a number. More...
bool	IsExternal () const
	Returns true if this value is external. More...
bool	IsInt32 () const
	Returns true if this value is a 32-bit signed integer. More...
bool	IsUint32 () const
	Returns true if this value is a 32-bit unsigned integer. More...
bool	IsDate () const
	Returns true if this value is a Date. More...
bool	IsArgumentsObject () const
	Returns true if this value is an Arguments object. More...
bool	IsBooleanObject () const
	Returns true if this value is a Boolean object. More...
bool	IsNumberObject () const
	Returns true if this value is a Number object. More...
bool	IsStringObject () const
	Returns true if this value is a String object. More...
bool	IsSymbolObject () const
	Returns true if this value is a Symbol object. More...
bool	IsNativeError () const
	Returns true if this value is a NativeError. More...
bool	IsRegExp () const
	Returns true if this value is a RegExp. More...
bool	IsGeneratorFunction () const
	Returns true if this value is a Generator function. More...
bool	IsGeneratorObject () const
	Returns true if this value is a Generator object (iterator). More...
bool	IsPromise () const
	Returns true if this value is a Promise. More...
bool	IsMap () const
	Returns true if this value is a Map. More...
bool	IsSet () const
	Returns true if this value is a Set. More...
bool	IsWeakMap () const
	Returns true if this value is a WeakMap. More...
bool	IsWeakSet () const
	Returns true if this value is a WeakSet. More...
bool	IsArrayBuffer () const
	Returns true if this value is an ArrayBuffer. More...
bool	IsArrayBufferView () const
	Returns true if this value is an ArrayBufferView. More...
bool	IsTypedArray () const
	Returns true if this value is one of TypedArrays. More...
bool	IsUint8Array () const
	Returns true if this value is an Uint8Array. More...
bool	IsUint8ClampedArray () const
	Returns true if this value is an Uint8ClampedArray. More...
bool	IsInt8Array () const
	Returns true if this value is an Int8Array. More...
bool	IsUint16Array () const
	Returns true if this value is an Uint16Array. More...
bool	IsInt16Array () const
	Returns true if this value is an Int16Array. More...
bool	IsUint32Array () const
	Returns true if this value is an Uint32Array. More...
bool	IsInt32Array () const
	Returns true if this value is an Int32Array. More...
bool	IsFloat32Array () const
	Returns true if this value is a Float32Array. More...
bool	IsFloat64Array () const
	Returns true if this value is a Float64Array. More...
bool	IsDataView () const
	Returns true if this value is a DataView. More...
Local< Boolean >	ToBoolean () const
Local< Number >	ToNumber () const
Local< String >	ToString () const
Local< String >	ToDetailString () const
Local< Object >	ToObject () const
Local< Integer >	ToInteger () const
Local< Uint32 >	ToUint32 () const
Local< Int32 >	ToInt32 () const
Local< Uint32 >	ToArrayIndex () const
	Attempts to convert a string to an array index. More...
bool	BooleanValue () const
double	NumberValue () const
int64_t	IntegerValue () const
uint32_t	Uint32Value () const
int32_t	Int32Value () const
bool	Equals (Handle< Value > that) const
	JS ==. More...
bool	StrictEquals (Handle< Value > that) const
bool	SameValue (Handle< Value > that) const

Static Public Member Functions
template<class T >
static Value *	Cast (T *value)

Private Member Functions
bool	QuickIsUndefined () const
bool	QuickIsNull () const
bool	QuickIsString () const
bool	FullIsUndefined () const
bool	FullIsNull () const
bool	FullIsString () const

Detailed Description

The superclass of all JavaScript values and objects.

Definition at line 1440 of file v8.h.

Member Function Documentation

BooleanValue()

bool v8::Value::BooleanValue

(

)

const

Definition at line 2895 of file api.cc.

                               {
  return Utils::OpenHandle(this)->BooleanValue();
}

References v8::Utils::OpenHandle().

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Cast()

template<class T >

Value * v8::Value::Cast ( T *  value )

inlinestatic

Definition at line 6569 of file v8.h.

                                              {
  return static_cast<Value*>(value);
}

Equals()

bool v8::Value::Equals

(

Handle< Value >

that

)

const

JS ==.

Definition at line 3025 of file api.cc.

                                           {
  i::Isolate* isolate = i::Isolate::Current();
  i::Handle<i::Object> obj = Utils::OpenHandle(this, true);
  if (!Utils::ApiCheck(!obj.is_null() && !that.IsEmpty(),
                       "v8::Value::Equals()",
                       "Reading from empty handle")) {
    return false;
  }
  LOG_API(isolate, "Equals");
  ENTER_V8(isolate);
  i::Handle<i::Object> other = Utils::OpenHandle(*that);
  // If both obj and other are JSObjects, we'd better compare by identity
  // immediately when going into JS builtin.  The reason is Invoke
  // would overwrite global object receiver with global proxy.
  if (obj->IsJSObject() && other->IsJSObject()) {
    return *obj == *other;
  }
  i::Handle<i::Object> args[] = { other };
  EXCEPTION_PREAMBLE(isolate);
  i::Handle<i::Object> result;
  has_pending_exception = !CallV8HeapFunction(
      "EQUALS", obj, arraysize(args), args).ToHandle(&result);
  EXCEPTION_BAILOUT_CHECK(isolate, false);
  return *result == i::Smi::FromInt(i::EQUAL);
}

References v8::Utils::ApiCheck(), arraysize, v8::CallV8HeapFunction(), ENTER_V8, v8::internal::EQUAL, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, v8::internal::Smi::FromInt(), v8::internal::Handle< T >::is_null(), v8::Handle< T >::IsEmpty(), LOG_API, and v8::Utils::OpenHandle().

Referenced by CheckEqualsHelper(), and CheckNonEqualsHelper().

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FullIsNull()

bool v8::Value::FullIsNull ( ) const

private

Definition at line 2392 of file api.cc.

                             {
  bool result = Utils::OpenHandle(this)->IsNull();
  DCHECK_EQ(result, QuickIsNull());
  return result;
}

References DCHECK_EQ, v8::Utils::OpenHandle(), and QuickIsNull().

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FullIsString()

bool v8::Value::FullIsString ( ) const

private

Definition at line 2419 of file api.cc.

                               {
  bool result = Utils::OpenHandle(this)->IsString();
  DCHECK_EQ(result, QuickIsString());
  return result;
}

References DCHECK_EQ, v8::Utils::OpenHandle(), and QuickIsString().

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FullIsUndefined()

bool v8::Value::FullIsUndefined ( ) const

private

Definition at line 2385 of file api.cc.

                                  {
  bool result = Utils::OpenHandle(this)->IsUndefined();
  DCHECK_EQ(result, QuickIsUndefined());
  return result;
}

References DCHECK_EQ, v8::Utils::OpenHandle(), and QuickIsUndefined().

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Int32Value()

int32_t v8::Value::Int32Value

(

)

const

Definition at line 3004 of file api.cc.

                                {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  if (obj->IsSmi()) {
    return i::Smi::cast(*obj)->value();
  } else {
    i::Isolate* isolate = i::HeapObject::cast(*obj)->GetIsolate();
    LOG_API(isolate, "Int32Value (slow)");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    i::Handle<i::Object> num;
    has_pending_exception = !i::Execution::ToInt32(isolate, obj).ToHandle(&num);
    EXCEPTION_BAILOUT_CHECK(isolate, 0);
    if (num->IsSmi()) {
      return i::Smi::cast(*num)->value();
    } else {
      return static_cast<int32_t>(num->Number());
    }
  }
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, and v8::Utils::OpenHandle().

Referenced by v8::internal::JSObject::GetElementAttributeWithInterceptor(), and v8::internal::JSObject::GetPropertyAttributesWithInterceptor().

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IntegerValue()

int64_t v8::Value::IntegerValue

(

)

const

Definition at line 2918 of file api.cc.

                                  {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  i::Handle<i::Object> num;
  if (obj->IsNumber()) {
    num = obj;
  } else {
    i::Isolate* isolate = i::HeapObject::cast(*obj)->GetIsolate();
    LOG_API(isolate, "IntegerValue");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    has_pending_exception = !i::Execution::ToInteger(
        isolate, obj).ToHandle(&num);
    EXCEPTION_BAILOUT_CHECK(isolate, 0);
  }
  if (num->IsSmi()) {
    return i::Smi::cast(*num)->value();
  } else {
    return static_cast<int64_t>(num->Number());
  }
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, and v8::Utils::OpenHandle().

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IsArgumentsObject()

bool v8::Value::IsArgumentsObject

(

)

const

Returns true if this value is an Arguments object.

IsArray()

bool v8::Value::IsArray

(

)

const

Returns true if this value is an array.

Definition at line 2431 of file api.cc.

                          {
  return Utils::OpenHandle(this)->IsJSArray();
}

References v8::Utils::OpenHandle().

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IsArrayBuffer()

bool v8::Value::IsArrayBuffer

(

)

const

Returns true if this value is an ArrayBuffer.

This is an experimental feature.

Definition at line 2436 of file api.cc.

                                {
  return Utils::OpenHandle(this)->IsJSArrayBuffer();
}

References v8::Utils::OpenHandle().

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IsArrayBufferView()

bool v8::Value::IsArrayBufferView

(

)

const

Returns true if this value is an ArrayBufferView.

This is an experimental feature.

Definition at line 2441 of file api.cc.

                                    {
  return Utils::OpenHandle(this)->IsJSArrayBufferView();
}

References v8::Utils::OpenHandle().

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IsBoolean()

bool v8::Value::IsBoolean

(

)

const

Returns true if this value is boolean.

Definition at line 2500 of file api.cc.

                            {
  return Utils::OpenHandle(this)->IsBoolean();
}

References v8::Utils::OpenHandle().

Referenced by v8::internal::JSObject::DeleteElementWithInterceptor(), and v8::internal::JSObject::DeletePropertyWithInterceptor().

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IsBooleanObject()

bool v8::Value::IsBooleanObject

(

)

const

Returns true if this value is a Boolean object.

IsDataView()

bool v8::Value::IsDataView

(

)

const

Returns true if this value is a DataView.

This is an experimental feature.

Definition at line 2463 of file api.cc.

                             {
  return Utils::OpenHandle(this)->IsJSDataView();
}

References v8::Utils::OpenHandle().

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IsDate()

bool v8::Value::IsDate

(

)

const

Returns true if this value is a Date.

IsExternal()

bool v8::Value::IsExternal

(

)

const

Returns true if this value is external.

Definition at line 2505 of file api.cc.

                             {
  return Utils::OpenHandle(this)->IsExternal();
}

References v8::Utils::OpenHandle().

Referenced by v8::External::CheckCast().

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IsFalse()

bool v8::Value::IsFalse

(

)

const

Returns true if this value is false.

Definition at line 2404 of file api.cc.

                          {
  return Utils::OpenHandle(this)->IsFalse();
}

References v8::Utils::OpenHandle().

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IsFloat32Array()

bool v8::Value::IsFloat32Array

(

)

const

Returns true if this value is a Float32Array.

This is an experimental feature.

IsFloat64Array()

bool v8::Value::IsFloat64Array

(

)

const

Returns true if this value is a Float64Array.

This is an experimental feature.

IsFunction()

bool v8::Value::IsFunction

(

)

const

Returns true if this value is a function.

Definition at line 2409 of file api.cc.

                             {
  return Utils::OpenHandle(this)->IsJSFunction();
}

References v8::Utils::OpenHandle().

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IsGeneratorFunction()

bool v8::Value::IsGeneratorFunction

(

)

const

Returns true if this value is a Generator function.

This is an experimental feature.

Definition at line 2571 of file api.cc.

                                      {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  if (!obj->IsJSFunction()) return false;
  i::Handle<i::JSFunction> func = i::Handle<i::JSFunction>::cast(obj);
  return func->shared()->is_generator();
}

References v8::internal::Handle< T >::cast(), and v8::Utils::OpenHandle().

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IsGeneratorObject()

bool v8::Value::IsGeneratorObject

(

)

const

Returns true if this value is a Generator object (iterator).

This is an experimental feature.

Definition at line 2579 of file api.cc.

                                    {
  return Utils::OpenHandle(this)->IsJSGeneratorObject();
}

References v8::Utils::OpenHandle().

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IsInt16Array()

bool v8::Value::IsInt16Array

(

)

const

Returns true if this value is an Int16Array.

This is an experimental feature.

IsInt32()

bool v8::Value::IsInt32

(

)

const

Returns true if this value is a 32-bit signed integer.

Definition at line 2510 of file api.cc.

                          {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  if (obj->IsSmi()) return true;
  if (obj->IsNumber()) {
    return i::IsInt32Double(obj->Number());
  }
  return false;
}

References v8::internal::IsInt32Double(), and v8::Utils::OpenHandle().

Referenced by v8::internal::JSObject::GetPropertyAttributesWithInterceptor().

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IsInt32Array()

bool v8::Value::IsInt32Array

(

)

const

Returns true if this value is an Int32Array.

This is an experimental feature.

IsInt8Array()

bool v8::Value::IsInt8Array

(

)

const

Returns true if this value is an Int8Array.

This is an experimental feature.

IsMap()

bool v8::Value::IsMap

(

)

const

Returns true if this value is a Map.

This is an experimental feature.

IsName()

bool v8::Value::IsName

(

)

const

Returns true if this value is a symbol or a string.

This is an experimental feature.

Definition at line 2414 of file api.cc.

                         {
  return Utils::OpenHandle(this)->IsName();
}

References v8::Utils::OpenHandle().

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IsNativeError()

bool v8::Value::IsNativeError

(

)

const

Returns true if this value is a NativeError.

Definition at line 2547 of file api.cc.

                                {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  if (obj->IsJSObject()) {
    i::Handle<i::JSObject> js_obj(i::JSObject::cast(*obj));
    i::Isolate* isolate = js_obj->GetIsolate();
    return CheckConstructor(isolate, js_obj, "$Error") ||
        CheckConstructor(isolate, js_obj, "$EvalError") ||
        CheckConstructor(isolate, js_obj, "$RangeError") ||
        CheckConstructor(isolate, js_obj, "$ReferenceError") ||
        CheckConstructor(isolate, js_obj, "$SyntaxError") ||
        CheckConstructor(isolate, js_obj, "$TypeError") ||
        CheckConstructor(isolate, js_obj, "$URIError");
  } else {
    return false;
  }
}

References v8::CheckConstructor(), and v8::Utils::OpenHandle().

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IsNull()

bool v8::Value::IsNull ( ) const

inline

Returns true if this value is the null value.

See ECMA-262 4.3.11.

Definition at line 6534 of file v8.h.

                         {
#ifdef V8_ENABLE_CHECKS
  return FullIsNull();
#else
  return QuickIsNull();
#endif
}

IsNumber()

bool v8::Value::IsNumber

(

)

const

Returns true if this value is a number.

Definition at line 2473 of file api.cc.

                           {
  return Utils::OpenHandle(this)->IsNumber();
}

References v8::Utils::OpenHandle().

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IsNumberObject()

bool v8::Value::IsNumberObject

(

)

const

Returns true if this value is a Number object.

IsObject()

bool v8::Value::IsObject

(

)

const

Returns true if this value is an object.

Definition at line 2468 of file api.cc.

                           {
  return Utils::OpenHandle(this)->IsJSObject();
}

References v8::Utils::OpenHandle().

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IsPromise()

bool v8::Value::IsPromise

(

)

const

Returns true if this value is a Promise.

This is an experimental feature.

Definition at line 5852 of file api.cc.

                            {
  i::Handle<i::Object> val = Utils::OpenHandle(this);
  if (!val->IsJSObject()) return false;
  i::Handle<i::JSObject> obj = i::Handle<i::JSObject>::cast(val);
  i::Isolate* isolate = obj->GetIsolate();
  LOG_API(isolate, "IsPromise");
  ENTER_V8(isolate);
  EXCEPTION_PREAMBLE(isolate);
  i::Handle<i::Object> argv[] = { obj };
  i::Handle<i::Object> b;
  has_pending_exception = !i::Execution::Call(
      isolate,
      isolate->is_promise(),
      isolate->factory()->undefined_value(),
      arraysize(argv), argv,
      false).ToHandle(&b);
  EXCEPTION_BAILOUT_CHECK(isolate, false);
  return b->BooleanValue();
}

References arraysize, v8::internal::Handle< T >::cast(), ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, v8::internal::Isolate::factory(), LOG_API, and v8::Utils::OpenHandle().

Referenced by v8::Promise::Resolver::CheckCast(), and v8::Promise::CheckCast().

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IsRegExp()

bool v8::Value::IsRegExp

(

)

const

Returns true if this value is a RegExp.

Definition at line 2565 of file api.cc.

                           {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  return obj->IsJSRegExp();
}

References v8::Utils::OpenHandle().

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IsSet()

bool v8::Value::IsSet

(

)

const

Returns true if this value is a Set.

This is an experimental feature.

IsString()

bool v8::Value::IsString ( ) const

inline

Returns true if this value is an instance of the String type.

See ECMA-262 8.4.

Definition at line 6552 of file v8.h.

                           {
#ifdef V8_ENABLE_CHECKS
  return FullIsString();
#else
  return QuickIsString();
#endif
}

Referenced by v8::Object::ObjectProtoToString().

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IsStringObject()

bool v8::Value::IsStringObject

(

)

const

Returns true if this value is a String object.

IsSymbol()

bool v8::Value::IsSymbol

(

)

const

Returns true if this value is a symbol.

This is an experimental feature.

Definition at line 2426 of file api.cc.

                           {
  return Utils::OpenHandle(this)->IsSymbol();
}

References v8::Utils::OpenHandle().

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IsSymbolObject()

bool v8::Value::IsSymbolObject

(

)

const

Returns true if this value is a Symbol object.

This is an experimental feature.

IsTrue()

bool v8::Value::IsTrue

(

)

const

Returns true if this value is true.

Definition at line 2399 of file api.cc.

                         {
  return Utils::OpenHandle(this)->IsTrue();
}

References v8::Utils::OpenHandle().

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IsTypedArray()

bool v8::Value::IsTypedArray

(

)

const

Returns true if this value is one of TypedArrays.

This is an experimental feature.

Definition at line 2446 of file api.cc.

                               {
  return Utils::OpenHandle(this)->IsJSTypedArray();
}

References v8::Utils::OpenHandle().

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IsUint16Array()

bool v8::Value::IsUint16Array

(

)

const

Returns true if this value is an Uint16Array.

This is an experimental feature.

IsUint32()

bool v8::Value::IsUint32

(

)

const

Returns true if this value is a 32-bit unsigned integer.

Definition at line 2520 of file api.cc.

                           {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  if (obj->IsSmi()) return i::Smi::cast(*obj)->value() >= 0;
  if (obj->IsNumber()) {
    double value = obj->Number();
    return !i::IsMinusZero(value) &&
        value >= 0 &&
        value <= i::kMaxUInt32 &&
        value == i::FastUI2D(i::FastD2UI(value));
  }
  return false;
}

References v8::internal::FastD2UI(), v8::internal::FastUI2D(), v8::internal::IsMinusZero(), v8::internal::kMaxUInt32, and v8::Utils::OpenHandle().

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IsUint32Array()

bool v8::Value::IsUint32Array

(

)

const

Returns true if this value is an Uint32Array.

This is an experimental feature.

IsUint8Array()

bool v8::Value::IsUint8Array

(

)

const

Returns true if this value is an Uint8Array.

This is an experimental feature.

IsUint8ClampedArray()

bool v8::Value::IsUint8ClampedArray

(

)

const

Returns true if this value is an Uint8ClampedArray.

This is an experimental feature.

IsUndefined()

bool v8::Value::IsUndefined ( ) const

inline

Returns true if this value is the undefined value.

See ECMA-262 4.3.10.

Definition at line 6516 of file v8.h.

                              {
#ifdef V8_ENABLE_CHECKS
  return FullIsUndefined();
#else
  return QuickIsUndefined();
#endif
}

IsWeakMap()

bool v8::Value::IsWeakMap

(

)

const

Returns true if this value is a WeakMap.

This is an experimental feature.

IsWeakSet()

bool v8::Value::IsWeakSet

(

)

const

Returns true if this value is a WeakSet.

This is an experimental feature.

NumberValue()

double v8::Value::NumberValue

(

)

const

Definition at line 2900 of file api.cc.

                                {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  i::Handle<i::Object> num;
  if (obj->IsNumber()) {
    num = obj;
  } else {
    i::Isolate* isolate = i::HeapObject::cast(*obj)->GetIsolate();
    LOG_API(isolate, "NumberValue");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    has_pending_exception = !i::Execution::ToNumber(
        isolate, obj).ToHandle(&num);
    EXCEPTION_BAILOUT_CHECK(isolate, base::OS::nan_value());
  }
  return num->Number();
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, v8::base::OS::nan_value(), v8::Utils::OpenHandle(), and v8::internal::ToNumber().

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QuickIsNull()

bool v8::Value::QuickIsNull ( ) const

inlineprivate

Definition at line 6542 of file v8.h.

                              {
  typedef internal::Object O;
  typedef internal::Internals I;
  O* obj = *reinterpret_cast<O* const*>(this);
  if (!I::HasHeapObjectTag(obj)) return false;
  if (I::GetInstanceType(obj) != I::kOddballType) return false;
  return (I::GetOddballKind(obj) == I::kNullOddballKind);
}

References I.

Referenced by FullIsNull().

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QuickIsString()

bool v8::Value::QuickIsString ( ) const

inlineprivate

Definition at line 6560 of file v8.h.

                                {
  typedef internal::Object O;
  typedef internal::Internals I;
  O* obj = *reinterpret_cast<O* const*>(this);
  if (!I::HasHeapObjectTag(obj)) return false;
  return (I::GetInstanceType(obj) < I::kFirstNonstringType);
}

References I.

Referenced by FullIsString().

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QuickIsUndefined()

bool v8::Value::QuickIsUndefined ( ) const

inlineprivate

Definition at line 6524 of file v8.h.

                                   {
  typedef internal::Object O;
  typedef internal::Internals I;
  O* obj = *reinterpret_cast<O* const*>(this);
  if (!I::HasHeapObjectTag(obj)) return false;
  if (I::GetInstanceType(obj) != I::kOddballType) return false;
  return (I::GetOddballKind(obj) == I::kUndefinedOddballKind);
}

References I.

Referenced by FullIsUndefined().

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SameValue()

bool v8::Value::SameValue

(

Handle< Value >

that

)

const

Definition at line 3085 of file api.cc.

                                              {
  i::Handle<i::Object> obj = Utils::OpenHandle(this, true);
  if (!Utils::ApiCheck(!obj.is_null() && !that.IsEmpty(),
                       "v8::Value::SameValue()",
                       "Reading from empty handle")) {
    return false;
  }
  i::Handle<i::Object> other = Utils::OpenHandle(*that);
  return obj->SameValue(*other);
}

References v8::Utils::ApiCheck(), v8::internal::Handle< T >::is_null(), v8::Handle< T >::IsEmpty(), and v8::Utils::OpenHandle().

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StrictEquals()

bool v8::Value::StrictEquals

(

Handle< Value >

that

)

const

Definition at line 3052 of file api.cc.

                                                 {
  i::Isolate* isolate = i::Isolate::Current();
  i::Handle<i::Object> obj = Utils::OpenHandle(this, true);
  if (!Utils::ApiCheck(!obj.is_null() && !that.IsEmpty(),
                       "v8::Value::StrictEquals()",
                       "Reading from empty handle")) {
    return false;
  }
  LOG_API(isolate, "StrictEquals");
  i::Handle<i::Object> other = Utils::OpenHandle(*that);
  // Must check HeapNumber first, since NaN !== NaN.
  if (obj->IsHeapNumber()) {
    if (!other->IsNumber()) return false;
    double x = obj->Number();
    double y = other->Number();
    // Must check explicitly for NaN:s on Windows, but -0 works fine.
    return x == y && !std::isnan(x) && !std::isnan(y);
  } else if (*obj == *other) {  // Also covers Booleans.
    return true;
  } else if (obj->IsSmi()) {
    return other->IsNumber() && obj->Number() == other->Number();
  } else if (obj->IsString()) {
    return other->IsString() &&
        i::String::Equals(i::Handle<i::String>::cast(obj),
                          i::Handle<i::String>::cast(other));
  } else if (obj->IsUndefined() || obj->IsUndetectableObject()) {
    return other->IsUndefined() || other->IsUndetectableObject();
  } else {
    return false;
  }
}

References v8::Utils::ApiCheck(), v8::internal::String::Equals(), v8::internal::Handle< T >::is_null(), v8::Handle< T >::IsEmpty(), LOG_API, v8::Utils::OpenHandle(), and v8::base::internal::y.

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ToArrayIndex()

Local< Uint32 > v8::Value::ToArrayIndex

(

)

const

Attempts to convert a string to an array index.

Returns an empty handle if the conversion fails.

Definition at line 2975 of file api.cc.

                                        {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  if (obj->IsSmi()) {
    if (i::Smi::cast(*obj)->value() >= 0) return Utils::Uint32ToLocal(obj);
    return Local<Uint32>();
  }
  i::Isolate* isolate = i::HeapObject::cast(*obj)->GetIsolate();
  LOG_API(isolate, "ToArrayIndex");
  ENTER_V8(isolate);
  EXCEPTION_PREAMBLE(isolate);
  i::Handle<i::Object> string_obj;
  has_pending_exception = !i::Execution::ToString(
      isolate, obj).ToHandle(&string_obj);
  EXCEPTION_BAILOUT_CHECK(isolate, Local<Uint32>());
  i::Handle<i::String> str = i::Handle<i::String>::cast(string_obj);
  uint32_t index;
  if (str->AsArrayIndex(&index)) {
    i::Handle<i::Object> value;
    if (index <= static_cast<uint32_t>(i::Smi::kMaxValue)) {
      value = i::Handle<i::Object>(i::Smi::FromInt(index), isolate);
    } else {
      value = isolate->factory()->NewNumber(index);
    }
    return Utils::Uint32ToLocal(value);
  }
  return Local<Uint32>();
}

References v8::internal::Handle< T >::cast(), ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, v8::internal::Isolate::factory(), v8::internal::Smi::FromInt(), v8::internal::Smi::kMaxValue, LOG_API, v8::Utils::OpenHandle(), and v8::Utils::Uint32ToLocal().

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ToBoolean()

Local< Boolean > v8::Value::ToBoolean

(

)

const

Definition at line 2638 of file api.cc.

                                      {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  if (obj->IsBoolean()) {
    return ToApiHandle<Boolean>(obj);
  } else {
    i::Isolate* isolate = i::Isolate::Current();
    LOG_API(isolate, "ToBoolean");
    ENTER_V8(isolate);
    i::Handle<i::Object> val =
        isolate->factory()->ToBoolean(obj->BooleanValue());
    return ToApiHandle<Boolean>(val);
  }
}

References ENTER_V8, v8::internal::Isolate::factory(), LOG_API, and v8::Utils::OpenHandle().

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ToDetailString()

Local< String > v8::Value::ToDetailString

(

)

const

Definition at line 2602 of file api.cc.

                                          {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  i::Handle<i::Object> str;
  if (obj->IsString()) {
    str = obj;
  } else {
    i::Isolate* isolate = i::Isolate::Current();
    LOG_API(isolate, "ToDetailString");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    has_pending_exception = !i::Execution::ToDetailString(
        isolate, obj).ToHandle(&str);
    EXCEPTION_BAILOUT_CHECK(isolate, Local<String>());
  }
  return ToApiHandle<String>(str);
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, and v8::Utils::OpenHandle().

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ToInt32()

Local< Int32 > v8::Value::ToInt32

(

)

const

Definition at line 2940 of file api.cc.

                                  {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  i::Handle<i::Object> num;
  if (obj->IsSmi()) {
    num = obj;
  } else {
    i::Isolate* isolate = i::HeapObject::cast(*obj)->GetIsolate();
    LOG_API(isolate, "ToInt32");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    has_pending_exception = !i::Execution::ToInt32(isolate, obj).ToHandle(&num);
    EXCEPTION_BAILOUT_CHECK(isolate, Local<Int32>());
  }
  return ToApiHandle<Int32>(num);
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, and v8::Utils::OpenHandle().

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ToInteger()

Local< Integer > v8::Value::ToInteger

(

)

const

Definition at line 2671 of file api.cc.

                                      {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  i::Handle<i::Object> num;
  if (obj->IsSmi()) {
    num = obj;
  } else {
    i::Isolate* isolate = i::HeapObject::cast(*obj)->GetIsolate();
    LOG_API(isolate, "ToInteger");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    has_pending_exception = !i::Execution::ToInteger(
        isolate, obj).ToHandle(&num);
    EXCEPTION_BAILOUT_CHECK(isolate, Local<Integer>());
  }
  return ToApiHandle<Integer>(num);
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, and v8::Utils::OpenHandle().

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ToNumber()

Local< Number > v8::Value::ToNumber

(

)

const

Definition at line 2653 of file api.cc.

                                    {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  i::Handle<i::Object> num;
  if (obj->IsNumber()) {
    num = obj;
  } else {
    i::Isolate* isolate = i::HeapObject::cast(*obj)->GetIsolate();
    LOG_API(isolate, "ToNumber");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    has_pending_exception = !i::Execution::ToNumber(
        isolate, obj).ToHandle(&num);
    EXCEPTION_BAILOUT_CHECK(isolate, Local<Number>());
  }
  return ToApiHandle<Number>(num);
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, v8::Utils::OpenHandle(), and v8::internal::ToNumber().

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ToObject()

Local< v8::Object > v8::Value::ToObject

(

)

const

Definition at line 2620 of file api.cc.

                                      {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  i::Handle<i::Object> val;
  if (obj->IsJSObject()) {
    val = obj;
  } else {
    i::Isolate* isolate = i::Isolate::Current();
    LOG_API(isolate, "ToObject");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    has_pending_exception = !i::Execution::ToObject(
        isolate, obj).ToHandle(&val);
    EXCEPTION_BAILOUT_CHECK(isolate, Local<v8::Object>());
  }
  return ToApiHandle<Object>(val);
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, and v8::Utils::OpenHandle().

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ToString()

Local< String > v8::Value::ToString

(

)

const

Definition at line 2584 of file api.cc.

                                    {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  i::Handle<i::Object> str;
  if (obj->IsString()) {
    str = obj;
  } else {
    i::Isolate* isolate = i::Isolate::Current();
    LOG_API(isolate, "ToString");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    has_pending_exception = !i::Execution::ToString(
        isolate, obj).ToHandle(&str);
    EXCEPTION_BAILOUT_CHECK(isolate, Local<String>());
  }
  return ToApiHandle<String>(str);
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, and v8::Utils::OpenHandle().

Referenced by v8::String::Utf8Value::Utf8Value(), and v8::String::Value::Value().

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ToUint32()

Local< Uint32 > v8::Value::ToUint32

(

)

const

Definition at line 2957 of file api.cc.

                                    {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  i::Handle<i::Object> num;
  if (obj->IsSmi()) {
    num = obj;
  } else {
    i::Isolate* isolate = i::HeapObject::cast(*obj)->GetIsolate();
    LOG_API(isolate, "ToUInt32");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    has_pending_exception = !i::Execution::ToUint32(
        isolate, obj).ToHandle(&num);
    EXCEPTION_BAILOUT_CHECK(isolate, Local<Uint32>());
  }
  return ToApiHandle<Uint32>(num);
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, and v8::Utils::OpenHandle().

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Uint32Value()

uint32_t v8::Value::Uint32Value

(

)

const

Definition at line 3097 of file api.cc.

                                  {
  i::Handle<i::Object> obj = Utils::OpenHandle(this);
  if (obj->IsSmi()) {
    return i::Smi::cast(*obj)->value();
  } else {
    i::Isolate* isolate = i::HeapObject::cast(*obj)->GetIsolate();
    LOG_API(isolate, "Uint32Value");
    ENTER_V8(isolate);
    EXCEPTION_PREAMBLE(isolate);
    i::Handle<i::Object> num;
    has_pending_exception = !i::Execution::ToUint32(
        isolate, obj).ToHandle(&num);
    EXCEPTION_BAILOUT_CHECK(isolate, 0);
    if (num->IsSmi()) {
      return i::Smi::cast(*num)->value();
    } else {
      return static_cast<uint32_t>(num->Number());
    }
  }
}

References ENTER_V8, EXCEPTION_BAILOUT_CHECK, EXCEPTION_PREAMBLE, LOG_API, and v8::Utils::OpenHandle().

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---

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

• /mnt/V8SourceCode/include/v8.h
• /mnt/V8SourceCode/src/api.cc