v8::internal::PreParserExpression Class Reference

#include <preparser.h>

Collaboration diagram for v8::internal::PreParserExpression:

Public Member Functions
bool	IsIdentifier () const
PreParserIdentifier	AsIdentifier () const
bool	IsStringLiteral () const
bool	IsUseStrictLiteral () const
bool	IsThis () const
bool	IsThisProperty () const
bool	IsProperty () const
bool	IsCall () const
bool	IsValidReferenceExpression () const
bool	IsValidArrowParamList () const
bool	IsFunctionLiteral () const
bool	IsCallNew () const
PreParserExpression	AsFunctionLiteral ()
bool	IsBinaryOperation () const
bool	is_parenthesized () const
void	increase_parenthesization_level ()
PreParserExpression *	operator-> ()
void	set_index (int index)
void	set_parenthesized ()
int	position () const
void	set_function_token_position (int position)
void	set_ast_properties (int *ast_properties)
void	set_dont_optimize_reason (BailoutReason dont_optimize_reason)
bool	operator== (const PreParserExpression &other) const
bool	operator!= (const PreParserExpression &other) const

Static Public Member Functions
static PreParserExpression	Default ()
static PreParserExpression	FromIdentifier (PreParserIdentifier id)
static PreParserExpression	BinaryOperation (PreParserExpression left, Token::Value op, PreParserExpression right)
static PreParserExpression	EmptyArrowParamList ()
static PreParserExpression	StringLiteral ()
static PreParserExpression	UseStrictStringLiteral ()
static PreParserExpression	This ()
static PreParserExpression	Super ()
static PreParserExpression	ThisProperty ()
static PreParserExpression	Property ()
static PreParserExpression	Call ()

Private Types
enum	{   kUnknownExpression = 0 , kTypeMask = 1 | 2 , kParenthesizedExpression = (1 << 2) , kMultiParenthesizedExpression = (1 << 3) ,   kTypeIdentifier = 1 , kIdentifierShift = 5 , kTypeStringLiteral = 2 , kUnknownStringLiteral = kTypeStringLiteral ,   kUseStrictString = kTypeStringLiteral | 32 , kStringLiteralMask = kUseStrictString , kTypeBinaryOperation = 3 , kBinaryOperationArrowParamList = (1 << 4) ,   kThisExpression = (1 << 4) , kThisPropertyExpression = (2 << 4) , kPropertyExpression = (3 << 4) , kCallExpression = (4 << 4) ,   kSuperExpression = (5 << 4) }

Private Member Functions
	PreParserExpression (int expression_code)
int	ArrowParamListBit () const

Private Attributes
int	code_

Detailed Description

Definition at line 676 of file preparser.h.

Member Enumeration Documentation

anonymous enum

anonymous enum

private

Enumerator
kUnknownExpression
kTypeMask
kParenthesizedExpression
kMultiParenthesizedExpression
kTypeIdentifier
kIdentifierShift
kTypeStringLiteral
kUnknownStringLiteral
kUseStrictString
kStringLiteralMask
kTypeBinaryOperation
kBinaryOperationArrowParamList
kThisExpression
kThisPropertyExpression
kPropertyExpression
kCallExpression
kSuperExpression

Definition at line 815 of file preparser.h.

       {
    kUnknownExpression = 0,
    kTypeMask = 1 | 2,
    kParenthesizedExpression = (1 << 2),
    kMultiParenthesizedExpression = (1 << 3),
 
    // Identifiers
    kTypeIdentifier = 1,  // Used to detect labels.
    kIdentifierShift = 5,
    kTypeStringLiteral = 2,  // Used to detect directive prologue.
    kUnknownStringLiteral = kTypeStringLiteral,
    kUseStrictString = kTypeStringLiteral | 32,
    kStringLiteralMask = kUseStrictString,
 
    // Binary operations. Those are needed to detect certain keywords and
    // duplicated identifier in parameter lists for arrow functions, because
    // they are initially parsed as comma-separated expressions.
    kTypeBinaryOperation = 3,
    kBinaryOperationArrowParamList = (1 << 4),
 
    // Below here applies if neither identifier nor string literal. Reserve the
    // 2 least significant bits for flags.
    kThisExpression = (1 << 4),
    kThisPropertyExpression = (2 << 4),
    kPropertyExpression = (3 << 4),
    kCallExpression = (4 << 4),
    kSuperExpression = (5 << 4)
  };

Constructor & Destructor Documentation

PreParserExpression()

v8::internal::PreParserExpression::PreParserExpression ( int  expression_code )

inlineexplicitprivate

Definition at line 844 of file preparser.h.

: code_(expression_code) {}

Referenced by BinaryOperation(), Call(), Default(), FromIdentifier(), Property(), StringLiteral(), Super(), This(), ThisProperty(), and UseStrictStringLiteral().

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Member Function Documentation

ArrowParamListBit()

int v8::internal::PreParserExpression::ArrowParamListBit ( ) const

inlineprivate

Definition at line 846 of file preparser.h.

                                          {
    if (IsBinaryOperation()) return code_ & kBinaryOperationArrowParamList;
    if (IsIdentifier()) {
      const PreParserIdentifier ident = AsIdentifier();
      // A valid identifier can be an arrow function parameter list
      // except for eval, arguments, yield, and reserved keywords.
      if (ident.IsEval() || ident.IsArguments() || ident.IsYield() ||
          ident.IsFutureStrictReserved())
        return 0;
      return kBinaryOperationArrowParamList;
    }
    return 0;
  }

References AsIdentifier(), code_, v8::internal::PreParserIdentifier::IsArguments(), IsBinaryOperation(), v8::internal::PreParserIdentifier::IsEval(), v8::internal::PreParserIdentifier::IsFutureStrictReserved(), IsIdentifier(), v8::internal::PreParserIdentifier::IsYield(), and kBinaryOperationArrowParamList.

Referenced by BinaryOperation(), and IsValidArrowParamList().

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AsFunctionLiteral()

PreParserExpression v8::internal::PreParserExpression::AsFunctionLiteral ( )

inline

Definition at line 773 of file preparser.h.

{ return *this; }

AsIdentifier()

PreParserIdentifier v8::internal::PreParserExpression::AsIdentifier ( ) const

inline

Definition at line 733 of file preparser.h.

                                           {
    DCHECK(IsIdentifier());
    return PreParserIdentifier(
        static_cast<PreParserIdentifier::Type>(code_ >> kIdentifierShift));
  }

References code_, DCHECK, IsIdentifier(), and kIdentifierShift.

Referenced by ArrowParamListBit(), v8::internal::PreParserTraits::AsIdentifier(), and v8::internal::PreParser::ParseExpressionOrLabelledStatement().

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BinaryOperation()

static PreParserExpression v8::internal::PreParserExpression::BinaryOperation ( PreParserExpression  left, Token::Value  op, PreParserExpression  right  )

inlinestatic

Definition at line 687 of file preparser.h.

                                                                        {
    int code = ((op == Token::COMMA) && !left.is_parenthesized() &&
                !right.is_parenthesized())
                   ? left.ArrowParamListBit() & right.ArrowParamListBit()
                   : 0;
    return PreParserExpression(kTypeBinaryOperation | code);
  }

References ArrowParamListBit(), COMMA, is_parenthesized(), kTypeBinaryOperation, and PreParserExpression().

Referenced by v8::internal::PreParserFactory::NewBinaryOperation().

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Call()

static PreParserExpression v8::internal::PreParserExpression::Call ( )

inlinestatic

Definition at line 727 of file preparser.h.

                                    {
    return PreParserExpression(kCallExpression);
  }

References kCallExpression, and PreParserExpression().

Referenced by v8::internal::PreParserFactory::NewCall().

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Default()

static PreParserExpression v8::internal::PreParserExpression::Default ( )

inlinestatic

Definition at line 678 of file preparser.h.

                                       {
    return PreParserExpression(kUnknownExpression);
  }

References kUnknownExpression, and PreParserExpression().

Referenced by v8::internal::PreParserTraits::BuildUnaryExpression(), v8::internal::PreParserTraits::ClassLiteral(), v8::internal::PreParserTraits::EmptyExpression(), v8::internal::PreParserTraits::EmptyFunctionLiteral(), v8::internal::PreParserTraits::EmptyLiteral(), v8::internal::PreParserTraits::EmptyObjectLiteralProperty(), v8::internal::PreParserTraits::ExpressionFromLiteral(), v8::internal::PreParserTraits::GetIterator(), v8::internal::PreParserTraits::GetLiteralTheHole(), v8::internal::PreParserFactory::NewArrayLiteral(), v8::internal::PreParserFactory::NewAssignment(), v8::internal::PreParserFactory::NewCallNew(), v8::internal::PreParserFactory::NewClassLiteral(), v8::internal::PreParserFactory::NewCompareOperation(), v8::internal::PreParserFactory::NewConditional(), v8::internal::PreParserFactory::NewCountOperation(), v8::internal::PreParserFactory::NewFunctionLiteral(), v8::internal::PreParserFactory::NewNumberLiteral(), v8::internal::PreParserFactory::NewObjectLiteral(), v8::internal::PreParserFactory::NewObjectLiteralProperty(), v8::internal::PreParserFactory::NewRegExpLiteral(), v8::internal::PreParserFactory::NewStringLiteral(), v8::internal::PreParserTraits::NewThrowReferenceError(), v8::internal::PreParserTraits::NewThrowSyntaxError(), v8::internal::PreParserTraits::NewThrowTypeError(), v8::internal::PreParserFactory::NewUnaryOperation(), v8::internal::PreParserFactory::NewVariableProxy(), v8::internal::PreParserFactory::NewYield(), v8::internal::PreParser::ParseFunctionLiteral(), and v8::internal::PreParser::ParseV8Intrinsic().

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EmptyArrowParamList()

static PreParserExpression v8::internal::PreParserExpression::EmptyArrowParamList ( )

inlinestatic

Definition at line 697 of file preparser.h.

                                                   {
    // Any expression for which IsValidArrowParamList() returns true
    // will work here.
    return FromIdentifier(PreParserIdentifier::Default());
  }

References v8::internal::PreParserIdentifier::Default(), and FromIdentifier().

Referenced by v8::internal::PreParserTraits::EmptyArrowParamList().

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FromIdentifier()

static PreParserExpression v8::internal::PreParserExpression::FromIdentifier ( PreParserIdentifier  id )

inlinestatic

Definition at line 682 of file preparser.h.

                                                                    {
    return PreParserExpression(kTypeIdentifier |
                               (id.type_ << kIdentifierShift));
  }

References kIdentifierShift, kTypeIdentifier, and PreParserExpression().

Referenced by EmptyArrowParamList(), and v8::internal::PreParserTraits::ExpressionFromIdentifier().

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increase_parenthesization_level()

void v8::internal::PreParserExpression::increase_parenthesization_level ( )

inline

Definition at line 783 of file preparser.h.

                                         {
    code_ |= is_parenthesized() ? kMultiParenthesizedExpression
                                : kParenthesizedExpression;
  }

References code_, is_parenthesized(), kMultiParenthesizedExpression, and kParenthesizedExpression.

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is_parenthesized()

bool v8::internal::PreParserExpression::is_parenthesized ( ) const

inline

Definition at line 779 of file preparser.h.

                                {
    return (code_ & kParenthesizedExpression) != 0;
  }

References code_, and kParenthesizedExpression.

Referenced by BinaryOperation(), and increase_parenthesization_level().

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IsBinaryOperation()

bool v8::internal::PreParserExpression::IsBinaryOperation ( ) const

inline

Definition at line 775 of file preparser.h.

                                 {
    return (code_ & kTypeMask) == kTypeBinaryOperation;
  }

References code_, kTypeBinaryOperation, and kTypeMask.

Referenced by ArrowParamListBit().

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IsCall()

bool v8::internal::PreParserExpression::IsCall ( ) const

inline

Definition at line 758 of file preparser.h.

{ return (code_ & kCallExpression) == kCallExpression; }

References code_, and kCallExpression.

IsCallNew()

bool v8::internal::PreParserExpression::IsCallNew ( ) const

inline

Definition at line 771 of file preparser.h.

{ return false; }

IsFunctionLiteral()

bool v8::internal::PreParserExpression::IsFunctionLiteral ( ) const

inline

Definition at line 770 of file preparser.h.

{ return false; }

IsIdentifier()

bool v8::internal::PreParserExpression::IsIdentifier ( ) const

inline

Definition at line 731 of file preparser.h.

{ return (code_ & kTypeMask) == kTypeIdentifier; }

References code_, kTypeIdentifier, and kTypeMask.

Referenced by ArrowParamListBit(), AsIdentifier(), v8::internal::PreParserTraits::IsIdentifier(), IsValidReferenceExpression(), v8::internal::PreParser::ParseExpressionOrLabelledStatement(), and v8::internal::PreParser::ParseForStatement().

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IsProperty()

bool v8::internal::PreParserExpression::IsProperty ( ) const

inline

Definition at line 753 of file preparser.h.

                          {
    return (code_ & kPropertyExpression) == kPropertyExpression ||
           (code_ & kThisPropertyExpression) == kThisPropertyExpression;
  }

References code_, kPropertyExpression, and kThisPropertyExpression.

Referenced by IsValidReferenceExpression().

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IsStringLiteral()

bool v8::internal::PreParserExpression::IsStringLiteral ( ) const

inline

Definition at line 739 of file preparser.h.

                               {
    return (code_ & kTypeMask) == kTypeStringLiteral;
  }

References code_, kTypeMask, and kTypeStringLiteral.

Referenced by v8::internal::PreParserStatement::ExpressionStatement().

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IsThis()

bool v8::internal::PreParserExpression::IsThis ( ) const

inline

Definition at line 747 of file preparser.h.

{ return (code_ & kThisExpression) == kThisExpression; }

References code_, and kThisExpression.

Referenced by v8::internal::PreParserFactory::NewProperty().

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IsThisProperty()

bool v8::internal::PreParserExpression::IsThisProperty ( ) const

inline

Definition at line 749 of file preparser.h.

                              {
    return (code_ & kThisPropertyExpression) == kThisPropertyExpression;
  }

References code_, and kThisPropertyExpression.

Referenced by v8::internal::PreParserTraits::IsThisProperty().

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IsUseStrictLiteral()

bool v8::internal::PreParserExpression::IsUseStrictLiteral ( ) const

inline

Definition at line 743 of file preparser.h.

                                  {
    return (code_ & kUseStrictString) == kUseStrictString;
  }

References code_, and kUseStrictString.

Referenced by v8::internal::PreParserStatement::ExpressionStatement().

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IsValidArrowParamList()

bool v8::internal::PreParserExpression::IsValidArrowParamList ( ) const

inline

Definition at line 764 of file preparser.h.

                                     {
    return (ArrowParamListBit() & kBinaryOperationArrowParamList) != 0 &&
           (code_ & kMultiParenthesizedExpression) == 0;
  }

References ArrowParamListBit(), code_, kBinaryOperationArrowParamList, and kMultiParenthesizedExpression.

Referenced by v8::internal::PreParserTraits::DeclareArrowParametersFromExpression().

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IsValidReferenceExpression()

bool v8::internal::PreParserExpression::IsValidReferenceExpression ( ) const

inline

Definition at line 760 of file preparser.h.

                                          {
    return IsIdentifier() || IsProperty();
  }

References IsIdentifier(), and IsProperty().

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operator!=()

bool v8::internal::PreParserExpression::operator!= ( const PreParserExpression &  other ) const

inline

Definition at line 804 of file preparser.h.

                                                          {
    return code_ != other.code_;
  }

References code_.

operator->()

PreParserExpression* v8::internal::PreParserExpression::operator-> ( )

inline

Definition at line 790 of file preparser.h.

{ return this; }

operator==()

bool v8::internal::PreParserExpression::operator== ( const PreParserExpression &  other ) const

inline

Definition at line 801 of file preparser.h.

                                                          {
    return code_ == other.code_;
  }

References code_.

position()

int v8::internal::PreParserExpression::position ( ) const

inline

Definition at line 796 of file preparser.h.

{ return RelocInfo::kNoPosition; }

References v8::internal::RelocInfo::kNoPosition.

Property()

static PreParserExpression v8::internal::PreParserExpression::Property ( )

inlinestatic

Definition at line 723 of file preparser.h.

                                        {
    return PreParserExpression(kPropertyExpression);
  }

References kPropertyExpression, and PreParserExpression().

Referenced by v8::internal::PreParserFactory::NewProperty().

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set_ast_properties()

void v8::internal::PreParserExpression::set_ast_properties ( int *  ast_properties )

inline

Definition at line 798 of file preparser.h.

{}

set_dont_optimize_reason()

void v8::internal::PreParserExpression::set_dont_optimize_reason ( BailoutReason  dont_optimize_reason )

inline

Definition at line 799 of file preparser.h.

{}

set_function_token_position()

void v8::internal::PreParserExpression::set_function_token_position ( int  position )

inline

Definition at line 797 of file preparser.h.

{}

set_index()

void v8::internal::PreParserExpression::set_index ( int  index )

inline

Definition at line 793 of file preparser.h.

{}  // For YieldExpressions

set_parenthesized()

void v8::internal::PreParserExpression::set_parenthesized ( )

inline

Definition at line 794 of file preparser.h.

{}

StringLiteral()

static PreParserExpression v8::internal::PreParserExpression::StringLiteral ( )

inlinestatic

Definition at line 703 of file preparser.h.

                                             {
    return PreParserExpression(kUnknownStringLiteral);
  }

References kUnknownStringLiteral, and PreParserExpression().

Referenced by v8::internal::PreParserTraits::ExpressionFromString().

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Super()

static PreParserExpression v8::internal::PreParserExpression::Super ( )

inlinestatic

Definition at line 715 of file preparser.h.

                                     {
    return PreParserExpression(kSuperExpression);
  }

References kSuperExpression, and PreParserExpression().

Referenced by v8::internal::PreParserTraits::SuperReference().

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This()

static PreParserExpression v8::internal::PreParserExpression::This ( )

inlinestatic

Definition at line 711 of file preparser.h.

                                    {
    return PreParserExpression(kThisExpression);
  }

References kThisExpression, and PreParserExpression().

Referenced by v8::internal::PreParserTraits::ThisExpression().

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ThisProperty()

static PreParserExpression v8::internal::PreParserExpression::ThisProperty ( )

inlinestatic

Definition at line 719 of file preparser.h.

                                            {
    return PreParserExpression(kThisPropertyExpression);
  }

References kThisPropertyExpression, and PreParserExpression().

Referenced by v8::internal::PreParserFactory::NewProperty().

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UseStrictStringLiteral()

static PreParserExpression v8::internal::PreParserExpression::UseStrictStringLiteral ( )

inlinestatic

Definition at line 707 of file preparser.h.

                                                      {
    return PreParserExpression(kUseStrictString);
  }

References kUseStrictString, and PreParserExpression().

Referenced by v8::internal::PreParserTraits::ExpressionFromString().

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Member Data Documentation

code_

int v8::internal::PreParserExpression::code_

private

Definition at line 860 of file preparser.h.

Referenced by ArrowParamListBit(), AsIdentifier(), increase_parenthesization_level(), is_parenthesized(), IsBinaryOperation(), IsCall(), IsIdentifier(), IsProperty(), IsStringLiteral(), IsThis(), IsThisProperty(), IsUseStrictLiteral(), IsValidArrowParamList(), operator!=(), and operator==().

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

• /mnt/V8SourceCode/src/preparser.h