"

 COPYRIGHT (c) 2010 by Jan Vrany, SWING Research Group. CTU in Prague

              All Rights Reserved

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:libtool' }"

Magnitude subclass:#SyntaxElement

	instanceVariableNames:'start stop type value next prev'

	classVariableNames:''

	poolDictionaries:''

	category:'Interface-CodeView-Syntax'

!

!SyntaxElement class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 2010 by Jan Vrany, SWING Research Group. CTU in Prague

              All Rights Reserved

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.

"

! !

!SyntaxElement class methodsFor:'instance creation'!

from: start to: stop

    ^self new

        start: start;

        stop: stop.

    "Created: / 14-02-2010 / 13:13:23 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

from: start to: stop type: type

    ^self new

        start: start;

        stop: stop;

        type: type

    "Created: / 14-02-2010 / 14:09:20 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

from: start to: stop type: type value: value

    ^self new

        start: start;

        stop: stop;

        type: type;

        value: value

    "Created: / 14-02-2010 / 17:41:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!SyntaxElement methodsFor:'accessing'!

firstElementInChain

    |first prev|

    first := self.

    [ (prev := first previousElement) notNil ] whileTrue:[

        first := prev.

    ].

    ^ first

    "Created: / 21-08-2011 / 09:51:35 / cg"

!

lastElementInChain

    |last next|

    last := self.

    [ (next := last nextElement) notNil ] whileTrue:[

        last := next.

    ].

    ^ last

!

next

    ^ next

!

next:aSyntaxElement

    next := aSyntaxElement.

    next prev: self.

    "Modified: / 14-02-2010 / 17:44:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

nextElement

    ^ next

    "Created: / 21-08-2011 / 09:47:11 / cg"

!

nextElement:aSyntaxElement

    next := aSyntaxElement.

    next prev: self.

    "Modified: / 14-02-2010 / 17:44:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Created: / 21-08-2011 / 09:47:15 / cg"

!

prev

    ^ prev

!

prev:aSyntaxElement

    prev := aSyntaxElement.

!

previousElement

    ^ prev

    "Created: / 21-08-2011 / 09:47:23 / cg"

!

previousElement:aSyntaxElement

    prev := aSyntaxElement.

    "Created: / 21-08-2011 / 09:47:28 / cg"

!

start

    ^ start

!

start:anInteger

    start := anInteger.

!

stop

    ^ stop

!

stop:anInteger

    stop := anInteger.

!

type

    ^ type

!

type:aSymbol

    type := aSymbol.

!

value

    ^ value

!

value:anObject

    value := anObject.

! !

!SyntaxElement methodsFor:'comparing'!

< anObject

    anObject isNumber ifTrue:[^stop < anObject].

    anObject class == self class ifFalse:[^false].

    ^stop < anObject start

    "Created: / 14-02-2010 / 13:39:46 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (format): / 27-07-2012 / 21:53:22 / cg"

!

= anObject

    anObject class == self class ifFalse:[^false].

    ^start == (anObject start) and:

        [stop == (anObject stop) and:

            [type == (anObject type)]].

    "Created: / 14-02-2010 / 13:33:36 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (format): / 27-07-2012 / 21:53:24 / cg"

!

hash

    ^start hash bitXor:[stop hash bitXor:[type hash]].

    "Created: / 14-02-2010 / 13:30:00 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (format): / 27-07-2012 / 21:53:28 / cg"

! !

!SyntaxElement methodsFor:'double dispatching'!

lessFromInteger:anInteger

    ^stop < anInteger

    "Created: / 14-02-2010 / 13:49:50 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified (format): / 27-07-2012 / 21:53:33 / cg"

! !

!SyntaxElement methodsFor:'printing & storing'!

printOn:aStream

    "append a printed representation if the receiver to the argument, aStream"

    super printOn:aStream.

    aStream nextPutAll:'('.

    type printOn: aStream.

    aStream nextPutAll:' -> '.    

    value printOn:aStream.

    aStream nextPut:$).

    "Modified: / 25-06-2010 / 13:20:13 / Jan Vrany <jan.vrany@fit.cvut.cz>"

    "Modified: / 21-08-2011 / 09:33:51 / cg"

! !

!SyntaxElement methodsFor:'queries'!

isSelector

    ^ type == #selector

    "Created: / 21-08-2011 / 09:09:19 / cg"

!

isSelf

    ^ type == #self

    "Created: / 21-08-2011 / 09:31:20 / cg"

!

isVariable

    ^ type == #variable

    "Created: / 21-08-2011 / 09:09:00 / cg"

!

isVariableOrSelf

    ^ self isVariable or:[self isSelf]

    "Created: / 21-08-2011 / 09:31:33 / cg"

! !

!SyntaxElement class methodsFor:'documentation'!

version_CVS

    ^ '$Header: /cvs/stx/stx/libtool/SyntaxElement.st,v 1.5 2013-01-11 09:56:30 cg Exp $'

!

version_SVN

    ^ '§Id: SyntaxElement.st 7582 2010-06-25 13:26:33Z vranyj1 §'

! !