"

 Copyright (c) 2007-2010 Jan Vrany, SWING Research Group, Czech Technical University in Prague

 Copyright (c) 2009-2010 eXept Software AG

 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' }"

RBProgramNodeVisitor subclass:#CodeGenerator

	instanceVariableNames:'class protocol source change replacements

		recordedReplacementsInSource'

	classVariableNames:''

	poolDictionaries:''

	category:'Interface-Browsers'

!

!CodeGenerator class methodsFor:'documentation'!

copyright

"

 Copyright (c) 2007-2010 Jan Vrany, SWING Research Group, Czech Technical University in Prague

 Copyright (c) 2009-2010 eXept Software AG

 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.

"

! !

!CodeGenerator methodsFor:'accessing'!

category:aString

    self protocol: aString

    "Created: / 30-12-2008 / 17:41:44 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 07-07-2009 / 18:46:20 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

change

   change ifNil:[self createChange].

   ^change

    "Created: / 30-12-2008 / 17:14:14 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 07-07-2009 / 18:45:07 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

class:aClass

    class := aClass

    "Created: / 30-12-2008 / 15:38:00 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 07-07-2009 / 18:46:34 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

protocol

    ^ protocol

!

protocol:aString

    protocol := aString.

!

replace: placeholder with: code

    replacements 

        at: placeholder

        put: (code isSymbol 

                ifTrue:[code]

                ifFalse:[RBParser parseRewriteExpression: code])

    "Created: / 07-07-2009 / 18:48:21 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 07-07-2009 / 19:58:51 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

replacementFor: placeholder

    ^replacements 

        at: placeholder

        ifAbsent:[self error:'No replacement for ', placeholder]

    "Created: / 07-07-2009 / 19:13:18 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

source:aString

    source := aString.

    "Created: / 30-12-2008 / 17:04:14 / Jan Vrany <vranyj1@fel.cvut.cz>"

! !

!CodeGenerator methodsFor:'compiling'!

compile

    ^self change apply

    "Created: / 07-07-2009 / 18:47:52 / Jan Vrany <vranyj1@fel.cvut.cz>"

! !

!CodeGenerator methodsFor:'initialization'!

initialize

    "Invoked when a new instance is created."

    super initialize.

    replacements := Dictionary new.

    "Created: / 30-12-2008 / 15:29:17 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 07-07-2009 / 18:45:17 / Jan Vrany <vranyj1@fel.cvut.cz>"

! !

!CodeGenerator methodsFor:'private'!

createChange

    | parser method |

    parser := RBParser new.

    recordedReplacementsInSource := OrderedCollection new.

    parser errorBlock:[ :str :pos | self error: ('Error: %1: %2' bindWith: pos with: str). ^ self ].

    parser initializeParserWith: source type: #rewriteSavingCommentsOn:errorBlock:.

    method := parser parseMethod: source.    

    method source: nil.

    method acceptVisitor: self.

    self replaceInSourceCode.

    (change := InteractiveAddMethodChange new)

        class: class

        protocol: protocol

        source: (source notNil ifTrue:[source] ifFalse:[method formattedCode]).

    "Created: / 07-07-2009 / 18:44:42 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 26-08-2014 / 23:51:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

recordReplaceInSourceFrom:start to:stop by:code

    recordedReplacementsInSource add: { start. stop . code }.

    "Modified: / 26-08-2014 / 23:50:10 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

replaceInSourceCode

    "Perform recorded replacements in source"

    recordedReplacementsInSource sort: [ :a :b | a second < b first ].

    recordedReplacementsInSource reverseDo:[ :replacement |

        source := 

            (source copyTo: replacement first - 1) , replacement third , (source copyFrom: replacement second + 1)  

    ].

    "Created: / 26-08-2014 / 23:51:54 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

replacePlaceholdersInSelectorPartsOf:aMessageNode 

    aMessageNode selectorParts do:[:part | 

        part isPatternVariable ifTrue:[

            |replacement|

            replacement := self replacementFor:part value.

            (replacement isSymbol or:[ replacement isVariable ]) ifFalse:[

                self error:'Replacement for selector parts must be a single selector'

            ].

            source notNil ifTrue:[

                self 

                      recordReplaceInSourceFrom:part start

                      to:part stop

                      by:replacement formattedCode.

            ].

            part value:replacement formattedCode.                 

        ]

    ]

    "Modified: / 26-08-2014 / 23:37:31 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!CodeGenerator methodsFor:'visitor-double dispatching'!

acceptMessageNode:aMessageNode 

    self replacePlaceholdersInSelectorPartsOf:aMessageNode.

    super acceptMessageNode:aMessageNode.

    "Created: / 07-07-2009 / 19:23:08 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

acceptMethodNode: aMethodNode

    self replacePlaceholdersInSelectorPartsOf: aMethodNode.

    super acceptMethodNode: aMethodNode.

    "Created: / 07-07-2009 / 19:09:11 / Jan Vrany <vranyj1@fel.cvut.cz>"

!

acceptVariableNode: aVariableNode

    aVariableNode isPatternNode ifTrue:[            

        source notNil ifTrue:[ 

            self 

                  recordReplaceInSourceFrom:aVariableNode start

                  to:aVariableNode stop

                  by:(self replacementFor:aVariableNode name) formattedCode

        ].

        aVariableNode replaceWith: (self replacementFor:aVariableNode name).

    ]

    "Created: / 30-12-2008 / 17:13:16 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 07-07-2009 / 19:13:55 / Jan Vrany <vranyj1@fel.cvut.cz>"

    "Modified: / 26-08-2014 / 23:37:48 / Jan Vrany <jan.vrany@fit.cvut.cz>"

! !

!CodeGenerator class methodsFor:'documentation'!

version_CVS

    ^ '$Header: /cvs/stx/stx/libtool/CodeGenerator.st,v 1.4 2014-08-26 22:58:13 vrany Exp $'

!

version_SVN

    ^ '$Id: CodeGenerator.st,v 1.4 2014-08-26 22:58:13 vrany Exp $'

! !