gnash::Function2 Class Reference

Function2 adds extra sauce to ordinary Functions. More...

#include <Function2.h>

Inheritance diagram for gnash::Function2:

List of all members.

Public Types
enum	DefineFunction2Flags {   PRELOAD_THIS = 0x01, SUPPRESS_THIS = 0x02, PRELOAD_ARGUMENTS = 0x04, SUPPRESS_ARGUMENTS = 0x08,   PRELOAD_SUPER = 0x10, SUPPRESS_SUPER = 0x20, PRELOAD_ROOT = 0x40, PRELOAD_PARENT = 0x80,   PRELOAD_GLOBAL = 256 }
Public Member Functions
	Function2 (const action_buffer &ab, as_environment &env, size_t start, const ScopeStack &with_stack)
virtual	~Function2 ()
virtual boost::uint8_t	registers () const
	Return the number of registers to allocate for this function.
void	setRegisterCount (boost::uint8_t ct)
void	setFlags (boost::uint16_t flags)
virtual as_value	call (const fn_call &fn)
	Dispatch.

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Detailed Description

Function2 adds extra sauce to ordinary Functions.

The Function2 was introduced in version 6 of the player. Differences from ordinary functions are: 1. Up to 256 local registers. 2. Ability to suppress super, this, arguments 3. Ability to store super, this, arguments, _global, _root, and _parent in registers.

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Member Enumeration Documentation

enum gnash::Function2::DefineFunction2Flags

Enumerator:

PRELOAD_THIS	Bind one register to "this".
SUPPRESS_THIS	No "this" variable accessible by name.
PRELOAD_ARGUMENTS	Bind one register to "arguments".
SUPPRESS_ARGUMENTS	No "argument" variable accessible by name.
PRELOAD_SUPER	Bind one register to "super".
SUPPRESS_SUPER	No "super" variable accessible by name.
PRELOAD_ROOT	Bind one register to "_root".
PRELOAD_PARENT	Bind one register to "_parent".
PRELOAD_GLOBAL	Bind one register to "_global".

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Constructor & Destructor Documentation

gnash::Function2::Function2	(	const action_buffer &	ab,
		as_environment &	env,
		size_t	start,
		const ScopeStack &	with_stack
	)

virtual gnash::Function2::~Function2

(

)

[inline, virtual]

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Member Function Documentation

as_value gnash::Function2::call

(

const fn_call &

fn

)

[virtual]

Dispatch.

This is only needed for SWF5 (temp switch of target) We do always and base 'target' value on SWF version. TODO: simplify code by maybe using a custom as_environment instead, so to get an "original" target being the one set now (rather then the really original one) TODO: test scope when calling functions defined in another timeline (target, in particular).

Reimplemented from gnash::Function.

References gnash::as_object::vm(), gnash::getVM(), gnash::VM::calling(), gnash::VM::currentCall(), gnash::CallFrame::function(), gnash::FrameGuard::callFrame(), gnash::Function::_env, gnash::as_environment::target(), gnash::as_environment::get_original_target(), gnash::getSWFVersion(), gnash::fn_call::this_ptr, gnash::Function::_pool, SUPPRESS_THIS, PRELOAD_THIS, gnash::CallFrame::setLocalRegister(), gnash::setLocal(), gnash::NSV::PROP_THIS, SUPPRESS_ARGUMENTS, PRELOAD_ARGUMENTS, gnash::getGlobal(), gnash::Global_as::createArray(), gnash::getArguments(), gnash::NSV::PROP_ARGUMENTS, SUPPRESS_SUPER, gnash::fn_call::super, gnash::as_object::get_super(), PRELOAD_SUPER, gnash::NSV::PROP_SUPER, PRELOAD_ROOT, gnash::key::r, gnash::getObject(), gnash::DisplayObject::getAsRoot(), PRELOAD_PARENT, gnash::key::p, gnash::DisplayObject::parent(), PRELOAD_GLOBAL, gnash::VM::getGlobal(), gnash::key::i, gnash::key::n, gnash::Function::_args, gnash::fn_call::nargs, gnash::fn_call::arg(), and gnash::declareLocal().

virtual boost::uint8_t gnash::Function2::registers

(

)

const [inline, virtual]

Return the number of registers to allocate for this function.

Reimplemented from gnash::Function.

void gnash::Function2::setFlags

(

boost::uint16_t

flags

)

[inline]

void gnash::Function2::setRegisterCount

(

boost::uint8_t

ct

)

[inline]

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

• Function2.h
• Function2.cpp