"{ Encoding: utf8 }"

"

 Copyright (c) 2010-2011 Jan Vrany, Jan Kurs & Marcel Hlopko,

                         SWING Research Group, Czech Technical University 

                         in Prague

 Permission is hereby granted, free of charge, to any person

 obtaining a copy of this software and associated documentation

 files (the 'Software'), to deal in the Software without

 restriction, including without limitation the rights to use,

 copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the

 Software is furnished to do so, subject to the following

 conditions:

 The above copyright notice and this permission notice shall be

 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,

 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 OTHER DEALINGS IN THE SOFTWARE.

"

"{ Package: 'stx:libjava' }"

"{ NameSpace: Smalltalk }"

Method variableSubclass:#ProxyMethod

	instanceVariableNames:'body'

	classVariableNames:'InstallProxies'

	poolDictionaries:''

	category:'System-Compiler-Interop'

!

!ProxyMethod class methodsFor:'documentation'!

copyright

"

 Copyright (c) 2010-2011 Jan Vrany, Jan Kurs & Marcel Hlopko,

                         SWING Research Group, Czech Technical University 

                         in Prague

 Permission is hereby granted, free of charge, to any person

 obtaining a copy of this software and associated documentation

 files (the 'Software'), to deal in the Software without

 restriction, including without limitation the rights to use,

 copy, modify, merge, publish, distribute, sublicense, and/or sell

 copies of the Software, and to permit persons to whom the

 Software is furnished to do so, subject to the following

 conditions:

 The above copyright notice and this permission notice shall be

 included in all copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,

 EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES

 OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND

 NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT

 HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,

 WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING

 FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR

 OTHER DEALINGS IN THE SOFTWARE.

"

!

documentation

"

    ProxyMethod is a special method generated by the system

    that usually calls other methods. Proxy method are used when

    an additional dispatch logic is required and cannot be handled

    by native dispatch method not by MOP - such as multiple dispatch

    or dynamaic java overload dispatch.

    [author:]

        Jan Vrany <jan.vrany@fit.cvut.cz>

    [instance variables:]

    [class variables:]

    [see also:]

        ProxyMethodCompiler

        ProxyMethodNode

        JavaLookup (an example how to use this stuff)

"

! !

!ProxyMethod class methodsFor:'initialization'!

initialize

    "Invoked at system start or when the class is dynamically loaded."

"/    self makeMetaMethod.

    InstallProxies := true.

    "Modified: / 23-12-2011 / 14:13:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!ProxyMethod class methodsFor:'accessing'!

installProxies

    ^InstallProxies

    "Created: / 23-12-2011 / 13:08:12 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

installProxies: aBoolean

    InstallProxies := aBoolean 

    "

    InstallProxies := true.

    InstallProxies := false

    "

    "Created: / 23-12-2011 / 13:08:31 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!ProxyMethod class methodsFor:'misc'!

makeMetaMethod

    self flags:((self flags 

                 bitOr:Behavior flagMetaMethod)

                 bitClear:Behavior flagMethod)

    "

        GuardedMethod makeNormalMethod

        GuardedMethod makeMetaMethod

    "

    "Created: / 06-12-2011 / 21:19:01 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

makeNormalMethod

    self flags:((self flags 

                 bitOr:Behavior flagMethod)

                 bitClear:Behavior flagMetaMethod)

    "

        ProxyMethod makeNormalMethod

        ProxyMethod makeMetaMethod

    "

    "Created: / 06-12-2011 / 21:18:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!ProxyMethod methodsFor:'accessing'!

body

    ^ body

!

body:aProxyMethodNode

    body := aProxyMethodNode.

    self recompile.

    "Modified: / 14-12-2011 / 21:22:35 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

category

    "return the methods category or nil"

    ^ #'* proxies *'

    "Created: / 16-12-2011 / 20:24:21 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

getPackage

    "return the package-ID of the method"

    ^self package

    "Created: / 16-12-2011 / 20:25:39 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

interpretWithReceiver: receiver

    ^self interpretWithReceiver: receiver arguments: #()

    "Created: / 06-12-2011 / 21:21:12 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

interpretWithReceiver: receiver arg: a1

    ^self interpretWithReceiver: receiver arguments: { a1 }

    "Created: / 06-12-2011 / 21:21:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

interpretWithReceiver: receiver arg: a1 arg: a2

    ^self interpretWithReceiver: receiver arguments: { a1 . a2 }

    "Created: / 06-12-2011 / 21:21:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

interpretWithReceiver: receiver arg: a1 arg: a2 arg: a3

    ^self interpretWithReceiver: receiver arguments: { a1 . a2 . a3 }

    "Created: / 06-12-2011 / 21:22:05 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

interpretWithReceiver: receiver arguments: arguments

    ^body evaluateWithReceiver: receiver arguments: arguments

    "Created: / 06-12-2011 / 21:23:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

package

    "return the package-ID of the method (nil is translated to noProject here)"

    ^#'* proxies *'

    "Created: / 16-12-2011 / 20:25:25 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

source

    ^String streamContents:[:s|

        s nextPutAll: c'"\nThis is a generated proxy method\n'.

        self decompileTo:s. 

        s nextPutAll: c'\n"\n'.

    ]

    "Created: / 23-12-2011 / 13:51:34 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 07-06-2019 / 22:53:28 / Claus Gittinger"

! !

!ProxyMethod methodsFor:'building'!

addGuard: aGuard

    body isNil ifTrue:[

        self assert:aGuard fallback notNil

    message:'Attempt set guard without fallback'.

    ] ifFalse:[

        self assert:aGuard fallback isNil

    message:'Attempt add guard with fallback'.  

        aGuard fallback: body.        

    ].

    self body: aGuard.

    "Created: / 06-12-2011 / 21:37:56 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!ProxyMethod methodsFor:'compiler interface'!

syntaxHighlighterClass

    "if #askClass is returned here, my owning class will be asked for the syntaxHighlighter.

     if nil is returned, no syntaxHighlighting will be done.

     Can be redefined in subclasses (MetaMethod) which use special syntax."

    ^ nil

    "Created: / 23-12-2011 / 13:52:30 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!ProxyMethod methodsFor:'displaying'!

printStringForBrowserWithSelector:selector inClass:class

    ^selector , ' * proxy *' allGray

    "Created: / 16-12-2011 / 01:16:58 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 07-06-2019 / 22:59:25 / Claus Gittinger"

! !

!ProxyMethod methodsFor:'testing'!

isProxyMethod

    "return true, if the receiver is a proxy method.

    True is returned here."

    ^true.

    "Created: / 16-12-2012 / 13:35:08 / Marcel Hlopko <marcel.hlopko@fit.cvut.cz>"

!

isStatic

    ^self mclass isMetaclass

    "Created: / 29-02-2012 / 13:47:52 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

isSynthetic

    ^true

    "Created: / 13-04-2012 / 16:06:07 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!ProxyMethod methodsFor:'utilities'!

recompile

    "Nothing to do now, will change later"

    "Created: / 06-12-2011 / 21:38:12 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!ProxyMethod class methodsFor:'documentation'!

version_CVS

    ^ '$Header$'

!

version_HG

    ^ '$Changeset: <not expanded> $'

!

version_SVN

    ^ '$Id$'

! !

ProxyMethod initialize!