KJS::Interpreter Class Reference

#include <interpreter.h>

Public Types
enum	CompatMode { NativeMode , IECompat , NetscapeCompat }

Public Member Functions
	Interpreter (const Object &global)
	Interpreter ()
Object &	globalObject () const
void	initGlobalObject ()
ExecState *	globalExec ()
bool	checkSyntax (const UString &code, int *errLine, UString *errMsg)
bool	checkSyntax (const UString &code)
Completion	evaluate (const UString &code, const Value &thisV=Value())
InterpreterImp *	imp ()
Object	builtinObject () const
Object	builtinFunction () const
Object	builtinArray () const
Object	builtinBoolean () const
Object	builtinString () const
Object	builtinNumber () const
Object	builtinDate () const
Object	builtinRegExp () const
Object	builtinError () const
Object	builtinObjectPrototype () const
Object	builtinFunctionPrototype () const
Object	builtinArrayPrototype () const
Object	builtinBooleanPrototype () const
Object	builtinStringPrototype () const
Object	builtinNumberPrototype () const
Object	builtinDatePrototype () const
Object	builtinRegExpPrototype () const
Object	builtinErrorPrototype () const
Object	builtinEvalError () const
Object	builtinRangeError () const
Object	builtinReferenceError () const
Object	builtinSyntaxError () const
Object	builtinTypeError () const
Object	builtinURIError () const
Object	builtinEvalErrorPrototype () const
Object	builtinRangeErrorPrototype () const
Object	builtinReferenceErrorPrototype () const
Object	builtinSyntaxErrorPrototype () const
Object	builtinTypeErrorPrototype () const
Object	builtinURIErrorPrototype () const
void	setCompatMode (CompatMode mode)
CompatMode	compatMode () const
virtual void	mark ()
virtual int	rtti ()

Static Public Member Functions
static void	lock ()
static void	unlock ()
static bool	collect ()

Protected Member Functions
virtual void	virtual_hook (int id, void *data)

Detailed Description

Interpreter objects can be used to evaluate ECMAScript code.

Each interpreter has a global object which is used for the purposes of code evaluation, and also provides access to built-in properties such as " Object" and "Number".

Definition at line 172 of file interpreter.h.

Constructor & Destructor Documentation

Interpreter() [1/2]

Interpreter::Interpreter

(

const Object &

global

)

Creates a new interpreter.

The supplied object will be used as the global object for all scripts executed with this interpreter. During constuction, all the standard properties such as "Object" and "Number" will be added to the global object.

Note: You should not use the same global object for multiple interpreters.

This is due do the fact that the built-in properties are set in the constructor, and if these objects have been modified from another interpreter (e.g. a script modifying String.prototype), the changes will be overridden.

Parameters

global

The object to use as the global object for this interpreter

Definition at line 112 of file interpreter.cpp.

Interpreter() [2/2]

Interpreter::Interpreter

(

)

Creates a new interpreter.

A global object will be created and initialized with the standard global properties.

Definition at line 117 of file interpreter.cpp.

Member Function Documentation

builtinArray()

Object Interpreter::builtinArray

(

)

const

Returns the builtin "Array" object.

Definition at line 183 of file interpreter.cpp.

builtinArrayPrototype()

Object Interpreter::builtinArrayPrototype

(

)

const

Returns the builtin "Array.prototype" object.

Definition at line 228 of file interpreter.cpp.

builtinBoolean()

Object Interpreter::builtinBoolean

(

)

const

Returns the builtin "Boolean" object.

Definition at line 188 of file interpreter.cpp.

builtinBooleanPrototype()

Object Interpreter::builtinBooleanPrototype

(

)

const

Returns the builtin "Boolean.prototype" object.

Definition at line 233 of file interpreter.cpp.

builtinDate()

Object Interpreter::builtinDate

(

)

const

Returns the builtin "Date" object.

Definition at line 203 of file interpreter.cpp.

builtinDatePrototype()

Object Interpreter::builtinDatePrototype

(

)

const

Returns the builtin "Date.prototype" object.

Definition at line 248 of file interpreter.cpp.

builtinError()

Object Interpreter::builtinError

(

)

const

Returns the builtin "Error" object.

Definition at line 213 of file interpreter.cpp.

builtinErrorPrototype()

Object Interpreter::builtinErrorPrototype

(

)

const

Returns the builtin "Error.prototype" object.

Definition at line 258 of file interpreter.cpp.

builtinEvalError()

Object Interpreter::builtinEvalError

(

)

const

The initial value of "Error" global property.

Definition at line 263 of file interpreter.cpp.

builtinFunction()

Object Interpreter::builtinFunction

(

)

const

Returns the builtin "Function" object.

Definition at line 178 of file interpreter.cpp.

builtinFunctionPrototype()

Object Interpreter::builtinFunctionPrototype

(

)

const

Returns the builtin "Function.prototype" object.

Definition at line 223 of file interpreter.cpp.

builtinNumber()

Object Interpreter::builtinNumber

(

)

const

Returns the builtin "Number" object.

Definition at line 198 of file interpreter.cpp.

builtinNumberPrototype()

Object Interpreter::builtinNumberPrototype

(

)

const

Returns the builtin "Number.prototype" object.

Definition at line 243 of file interpreter.cpp.

builtinObject()

Object Interpreter::builtinObject

(

)

const

Returns the builtin "Object" object.

This is the object that was set as a property of the global object during construction; if the property is replaced by script code, this method will still return the original object.

Returns

The builtin "Object" object

Definition at line 173 of file interpreter.cpp.

builtinObjectPrototype()

Object Interpreter::builtinObjectPrototype

(

)

const

Returns the builtin "Object.prototype" object.

Definition at line 218 of file interpreter.cpp.

builtinRegExp()

Object Interpreter::builtinRegExp

(

)

const

Returns the builtin "RegExp" object.

Definition at line 208 of file interpreter.cpp.

builtinRegExpPrototype()

Object Interpreter::builtinRegExpPrototype

(

)

const

Returns the builtin "RegExp.prototype" object.

Definition at line 253 of file interpreter.cpp.

builtinString()

Object Interpreter::builtinString

(

)

const

Returns the builtin "String" object.

Definition at line 193 of file interpreter.cpp.

builtinStringPrototype()

Object Interpreter::builtinStringPrototype

(

)

const

Returns the builtin "String.prototype" object.

Definition at line 238 of file interpreter.cpp.

checkSyntax() [1/2]

bool Interpreter::checkSyntax

(

const UString &

code

)

Parses the supplied ECMAScript code and checks for syntax errors.

Parameters

code	The code to check

Returns

true if there were no syntax errors in the code, otherwise false

Definition at line 158 of file interpreter.cpp.

checkSyntax() [2/2]

bool Interpreter::checkSyntax	(	const UString &	code,
		int *	errLine,
		UString *	errMsg
	)

Parses the supplied ECMAScript code and checks for syntax errors.

Parameters

code	The code to check
errLine	Returns the line the error was on (if there was one).
errMsg	Returns the error message (if there was one).

Returns

true if there were no syntax errors in the code, otherwise false

Definition at line 153 of file interpreter.cpp.

collect()

bool Interpreter::collect ( )

static

Run the garbage collection.

Returns true when at least one object was collected; false otherwise.

Definition at line 333 of file interpreter.cpp.

evaluate()

Completion Interpreter::evaluate	(	const UString &	code,
		const Value &	thisV = Value()
	)

Evaluates the supplied ECMAScript code.

Since this method returns a Completion, you should check the type of completion to detect an error or before attempting to access the returned value. For example, if an error occurs during script execution and is not caught by the script, the completion type will be Throw.

If the supplied code is invalid, a SyntaxError will be thrown.

Parameters

code	The code to evaluate
thisV	The value to pass in as the "this" value for the script execution. This should either be Null() or an Object.

Returns

A completion object representing the result of the execution.

Definition at line 163 of file interpreter.cpp.

globalExec()

ExecState * Interpreter::globalExec

(

)

Returns the execution state object which can be used to execute scripts using this interpreter at a the "global" level, i.e.

one with a execution context that has the global object as the "this" value, and who's scope chain contains only the global object.

Note: this pointer remains constant for the life of the interpreter and should not be manually deleted.

Returns

The interpreter global execution state object

Definition at line 148 of file interpreter.cpp.

globalObject()

Object & Interpreter::globalObject

(

)

const

Returns the object that is used as the global object during all script execution performed by this interpreter.

Definition at line 128 of file interpreter.cpp.

mark()

virtual void KJS::Interpreter::mark ( )

inlinevirtual

Called by InterpreterImp during the mark phase of the garbage collector Default implementation does nothing, this exist for classes that reimplement Interpreter.

Definition at line 397 of file interpreter.h.

rtti()

virtual int KJS::Interpreter::rtti ( )

inlinevirtual

Provides a way to distinguish derived classes.

Only useful if you reimplement Interpreter and if different kind of interpreters are created in the same process. The base class returns 0, the ECMA-bindings interpreter returns 1.

Definition at line 405 of file interpreter.h.

setCompatMode()

void Interpreter::setCompatMode

(

CompatMode

mode

)

Call this to enable a compatibility mode with another browser.

(by default konqueror is in "native mode"). Currently, in KJS, this only changes the behavior of Date::getYear() which returns the full year under IE.

Definition at line 323 of file interpreter.cpp.

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

• interpreter.h
• interpreter.cpp