"

 COPYRIGHT (c) 2004 by eXept Software AG

              All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

"{ Package: 'stx:libbasic' }"

"{ NameSpace: Smalltalk }"

AbstractSourceFileWriter subclass:#SmalltalkChunkFileSourceWriter

	instanceVariableNames:'classBeingSaved methodsAlreadySaved'

	classVariableNames:''

	poolDictionaries:''

	category:'Kernel-Classes-Support'

!

!SmalltalkChunkFileSourceWriter class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 2004 by eXept Software AG

              All Rights Reserved

 This software is furnished under a license and may be used

 only in accordance with the terms of that license and with the

 inclusion of the above copyright notice.   This software may not

 be provided or otherwise made available to, or used by, any

 other person.  No title to or ownership of the software is

 hereby transferred.

"

!

documentation

"

    I know how to write smalltalk chunk file format

"

! !

!SmalltalkChunkFileSourceWriter class methodsFor:'simple API'!

fileOut:aClass on:aStream

    self fileOut:aClass on:aStream withTimeStamp:true

        withInitialize:true withDefinition:true

        methodFilter:nil encoder:nil

!

fileOut:aClass on:aStream withTimeStamp:withTimeStamp

        withInitialize:initIt withDefinition:withDefinition

        methodFilter:methodFilter encoder:encoderOrNil

    self new

        fileOut:aClass on:aStream withTimeStamp:withTimeStamp

        withInitialize:initIt withDefinition:withDefinition

        methodFilter:methodFilter encoder:encoderOrNil

! !

!SmalltalkChunkFileSourceWriter class methodsFor:'utilities - source code'!

methodTemplate

    "return a method definition template string"

    |s|

    s := (TextStream ? WriteStream) on:''.

    s nextPutAll:

'message "selector and argument names"

    "comment stating purpose of this message"

    |temporaries|

    "statement."

    "statement."

    "

     optional: comment giving example use

    "

'.

    s cr.

    s emphasis:(UserPreferences current commentEmphasisAndColor).

    s nextPutAll:

'"

 change the above template into real code;

 remove this comment.

 Then `accept'' either via the menu 

 or via the keyboard (usually CMD-A).

 You do not need this template; you can also

 select any existing methods code, change it,

 and finally `accept''. The method will then be

 installed under the selector as defined in the

 actual text - no matter which method is selected

 in the browser.

 Or clear this text, type in the method from scratch

 and install it with `accept''.

 If you don''t like this method template to appear,

 disable it either via the global or browser''s settings dialog,

 or by evaluating:

     UserPreferences current showMethodTemplate:false

"

'.

    ^ s contents

!

versionMethodTemplateForCVS

    "careful to avoid expansion by cvs here!!"

    ^ ('version_CVS\    ^ ''$' , 'Header$''') withCRs

    "Created: / 21-08-2012 / 11:52:27 / cg"

! !

!SmalltalkChunkFileSourceWriter methodsFor:'source writing'!

fileOut:aClass on:outStreamArg withTimeStamp:stampIt withInitialize:initIt withDefinition:withDefinition methodFilter:methodFilter

    |encoder any16Bit|

    any16Bit := aClass withAllPrivateClasses contains:[:cls |

                 cls instAndClassMethods contains:[:m |

                        (methodFilter isNil or:[ (methodFilter value:m) ])

                        and:[ 

                            |src|

                            src := m source.

                            src notNil and:[src isWideString]

                        ]]].

    any16Bit ifTrue:[

        encoder := CharacterEncoder encoderForUTF8.

    ].

    ^ self

        fileOut: aClass 

        on:outStreamArg

        withTimeStamp:stampIt

        withInitialize:initIt

        withDefinition:withDefinition

        methodFilter:methodFilter

        encoder:encoder

    "Created: / 04-10-2014 / 12:11:49 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

fileOut:aClass on:outStreamArg withTimeStamp:stampIt withInitialize:initIt withDefinition:withDefinition methodFilter:methodFilter encoder:encoderOrNil

    "file out my definition and all methods onto aStream.

     If stampIt is true, a timeStamp comment is prepended.

     If initIt is true, and the class implements a class-initialize method,

     append a corresponding doIt expression for initialization.

     The order by which the fileOut is done is used to put the version method at the end.

     Thus, if the version string is expanded (by CVS), the characterPositions of all other methods should not move.

     Notice that any extensions version method is NOT written when a project definition is saved;

     it is ABSOLUTELY required, that it is saved to the extensions.st file only (because the expanded version string

     would be the version string of the project definition file and NOT the version string of the extensions file).

     todo: code duplication with JavaScriptSourceFileWriter - please refactor"

    |collectionOfCategories comment versionMethods extensionVersionMethods

     nonMeta meta classesImplementingInitialize outStream 

     allMetaClassSelectors versionSelectors extensionVersionSelectors

     allVersionMethods|

    self todo:'code duplication with JavaScriptSourceFileWriter - please refactor'.

    classBeingSaved := nonMeta := aClass theNonMetaclass.

    meta := nonMeta class.

    methodsAlreadySaved := Set new.

    nonMeta isLoaded ifFalse:[

        ^ ClassDescription fileOutErrorSignal 

            raiseRequestWith:nonMeta

            errorString:' - will not fileOut unloaded class: ', nonMeta name

    ].

    encoderOrNil isNil ifTrue:[

        outStream := outStreamArg.

    ] ifFalse:[

        outStream := EncodedStream stream:outStreamArg encoder:encoderOrNil.

        outStream nextPutAll:'"{ Encoding: ' , encoderOrNil nameOfEncoding , ' }"'; cr; cr.

    ].

    "

     if there is a copyright method, add a copyright comment

     at the beginning, taking the string from the copyright method.

     We cannot do this unconditionally - that would lead to my copyrights

     being put on your code ;-).

     On the other hand: I want every file created by myself to have the

     copyright string at the beginning be preserved .... even if the

     code was edited in the browser and filedOut.

    "

    self generateHeaderWithCopyrightOn:outStream.

    stampIt ifTrue:[

        "/

        "/ first, a timestamp

        "/

        self generateTimestampOn:outStream.

    ].

    withDefinition ifTrue:[

        "/

        "/ then the definition(s)

        "/

        self fileOutAllDefinitionsOf:nonMeta on:outStream.

        "/

        "/ a comment - if any

        "/

        (comment := nonMeta comment) notNil ifTrue:[

            self fileOutClassCommentOf:nonMeta on:outStream.

        ].

        "/

        "/ ST/X primitive definitions - if any

        "/

        nonMeta fileOutPrimitiveSpecsOn:outStream.

    ].

    "/

    "/ methods from all categories in metaclass (i.e. class methods)

    "/ EXCEPT: the version method is placed at the very end, to

    "/         avoid sourcePosition-shifts when checked out later.

    "/         (RCS expands this string, so its size is not constant)

    "/

    collectionOfCategories := meta categories asSortedCollection.

    allMetaClassSelectors := meta methodDictionary keys.

    versionSelectors := allMetaClassSelectors select:[:selector | AbstractSourceCodeManager isVersionMethodSelector:selector ].

    versionMethods := versionSelectors collect:[:eachSelector | meta methodDictionary at:eachSelector].

    extensionVersionSelectors := allMetaClassSelectors select:[:selector | AbstractSourceCodeManager isExtensionsVersionMethodSelector:selector ]. 

    extensionVersionMethods := extensionVersionSelectors collect:[:eachSelector | meta methodDictionary at:eachSelector].

    allVersionMethods := Set new addAll:versionMethods; addAll:extensionVersionMethods; yourself.

    collectionOfCategories notNil ifTrue:[

        "/

        "/ documentation first (if any), but not the version method

        "/

        (collectionOfCategories includes:'documentation') ifTrue:[

"/            versionMethods do:[:versionMethod |

"/                |source|

"/

"/                source := versionMethod source.

"/                (source isEmptyOrNil or:[(source startsWith:nonMeta nameOfOldVersionMethod) not]) ifTrue:[

"/                    "something bad happend to the classes code"

"/

"/                    Class fileOutErrorSignal 

"/                        raiseRequestWith:aClass

"/                        errorString:' - bad source for version method (uncompiled class file?): ', (versionMethod displayString)

"/                ].

"/            ].

            self fileOutCategory:'documentation' of:meta except:allVersionMethods only:nil methodFilter:methodFilter on:outStream.

        ].

        "/

        "/ initialization next (if any)

        "/

        (collectionOfCategories includes:'initialization') ifTrue:[

            self fileOutCategory:'initialization' of:meta methodFilter:methodFilter on:outStream.

        ].

        "/

        "/ instance creation next (if any)

        "/

        (collectionOfCategories includes:'instance creation') ifTrue:[

            self fileOutCategory:'instance creation' of:meta methodFilter:methodFilter on:outStream.

        ].

        collectionOfCategories do:[:aCategory |

            ((aCategory ~= 'documentation')

            and:[(aCategory ~= 'initialization')

            and:[aCategory ~= 'instance creation']]) ifTrue:[

                self fileOutCategory:aCategory of:meta methodFilter:methodFilter on:outStream.

            ]

        ]

    ].

    "/ if there are any primitive definitions (vw-like ffi-primitives),

    "/ file them out first in the order: defines, types.

    "/ Otherwise, we might have trouble when filing in later, because the types are needed

    "/ for the primitive calls.

    nonMeta methodDictionary keysAndValuesDo:[:sel :m |

        m isVisualWorksTypedef ifTrue:[

            self fileOutCategory:m category of:nonMeta except:nil only:(Array with:m) methodFilter:methodFilter on:outStream.

        ].

    ].

    "/

    "/ methods from all categories

    "/

    collectionOfCategories := nonMeta categories asSortedCollection.

    collectionOfCategories notNil ifTrue:[

        collectionOfCategories do:[:aCategory |

            self fileOutCategory:aCategory of:nonMeta methodFilter:methodFilter on:outStream.

        ]

    ].

    "/

    "/ any private classes' methods

    "/

    nonMeta privateClassesSorted do:[:eachPrivateClass |

        self fileOutAllMethodsOf:eachPrivateClass on:outStream methodFilter:methodFilter

    ].

    "/

    "/ finally, the previously skipped version method (but not the extensionsVersion methods!!)

    "/

    versionMethods notEmpty ifTrue: [

        self fileOutCategory:'documentation' of:meta except:nil only:versionMethods methodFilter:methodFilter on:outStream.

    ].

    initIt ifTrue:[

        "/

        "/ optionally an initialize message

        "/

        classesImplementingInitialize := OrderedCollection new.

        (meta includesSelector:#initialize) ifTrue:[

            classesImplementingInitialize add:nonMeta

        ].

        nonMeta privateClassesSorted do:[:aPrivateClass |

            (aPrivateClass theMetaclass includesSelector:#initialize) ifTrue:[

                classesImplementingInitialize add:aPrivateClass

            ]

        ].

        classesImplementingInitialize notEmpty ifTrue:[

            outStream cr.

            classesImplementingInitialize topologicalSort:[:a :b | b isSubclassOf:a].

            classesImplementingInitialize do:[:eachClass |

                self generateCallToInitializerFor:eachClass on:outStream

            ].

        ].

    ]

    "Created: / 15-11-1995 / 12:53:06 / cg"

    "Modified: / 01-04-1997 / 16:01:05 / stefan"

    "Modified: / 29-09-2011 / 14:53:49 / cg"

!

fileOutAllDefinitionsOf:aNonMetaClass on:aStream

    self fileOutAllDefinitionsOf:aNonMetaClass on:aStream withNameSpace: true.

    "Created: / 15-10-1996 / 11:15:19 / cg"

    "Modified: / 22-03-1997 / 16:11:56 / cg"

    "Modified: / 04-02-2014 / 20:00:59 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

fileOutAllDefinitionsOf:aNonMetaClass on:aStream withNameSpace: withNameSpacePragma

    "append expressions on aStream, which defines myself and all of my private classes."

    |s|

    s := CharacterWriteStream on:(String new:50).

    self fileOutDefinitionOf:aNonMetaClass on:s withNameSpace: withNameSpacePragma.

    aStream nextChunkPut:(s contents).

    "/ self fileOutDefinitionOf:aNonMetaClass on:aStream.

    "/ aStream nextPutChunkSeparator. 

    aStream cr; cr.

    "/

    "/ optional classInstanceVariables

    "/

    aNonMetaClass class instanceVariableString isBlank ifFalse:[

        self fileOutClassInstVarDefinitionOf:aNonMetaClass on:aStream

    ].

    "/ here, the full nameSpace prefixes are output,

    "/ to avoid confusing stc 

    "/ (which otherwise could not find the correct superclass)

    "/

    Class fileOutNameSpaceQuerySignal answer:false do:[

        Class forceNoNameSpaceQuerySignal answer:true do:[

            aNonMetaClass privateClassesSorted do:[:aClass |

                 self fileOutAllDefinitionsOf:aClass on:aStream withNameSpace: false

            ]

        ]

    ].

    "Created: / 04-02-2014 / 20:00:37 / Jan Vrany <jan.vrany@fit.cvut.cz>"

!

fileOutAllMethodsOf:aClass on:aStream methodFilter:methodFilter

    |collectionOfCategories|

    collectionOfCategories := aClass class categories asSortedCollection.

    collectionOfCategories notNil ifTrue:[

        collectionOfCategories do:[:aCategory |

            self fileOutCategory:aCategory of:aClass class  methodFilter:methodFilter on:aStream.

        ]

    ].

    collectionOfCategories := aClass categories asSortedCollection.

    collectionOfCategories notNil ifTrue:[

        collectionOfCategories do:[:aCategory |

            self fileOutCategory:aCategory of:aClass methodFilter:methodFilter on:aStream.

        ]

    ].

    aClass privateClassesSorted do:[:aClass |

        self fileOutAllMethodsOf:aClass on:aStream methodFilter:methodFilter

    ].

    "Created: 15.10.1996 / 11:13:00 / cg"

    "Modified: 22.3.1997 / 16:12:17 / cg"

!

fileOutCategory:aCategory of:aClass except:skippedMethods only:savedMethods methodFilter:methodFilter on:aStream

    "file out all methods belonging to aCategory, aString onto aStream.

     If skippedMethods is nonNil, those are not saved.

     If savedMethods is nonNil, only those are saved.

     If both are nil, all are saved. See version-method handling in

     fileOut for what this is needed."

    |sortedSelectors first prevPrivacy privacy interestingMethods cat prjDef|

    interestingMethods := OrderedCollection new.

    aClass methodsDo:[:each |

        | wanted method shadowed |

        method := each.

        (methodsAlreadySaved includes:method) ifFalse:[

            (aCategory = method category) ifTrue:[

                wanted := methodFilter isNil or:[methodFilter value:method].

                wanted ifFalse:[ 

                    "/ care for methods which have been shadowed by an extension from another package!!

                    "/ The problem is that we cannot easily introspect the filter, so we cannot know

                    "/ if the filter is for package or not. In most (all?) cases it is as this method

                    "/ is mostly used by source code management, so if the filter filters method out,

                    "/ try afain for possibly shadowed method.

                    methodFilter notNil ifTrue:[ 

                        shadowed := method shadowedMethod.

                        shadowed notNil ifTrue:[ 

                            wanted := methodFilter value: shadowed.

                        ].

                    ].

                ].

                wanted ifTrue:[

                    skippedMethods notNil ifTrue:[

                        wanted := (skippedMethods includesIdentical:method) not

                    ] ifFalse:[

                        wanted := savedMethods isNil or:[ savedMethods includesIdentical:method ].

                    ].

                    wanted ifTrue:[

                        (method selector isSymbol) ifTrue:[

                            interestingMethods add:method

                        ] ifFalse:[

                            Transcript showCR:'skipping non-symbol method ', method selector printString.

                        ].

                    ].

                ]

            ]

        ]

    ].

    interestingMethods notEmpty ifTrue:[

        "/

        "/ sort by selector

        "/

        sortedSelectors := interestingMethods collect:[:m | aClass selectorAtMethod:m].

        sortedSelectors sortWith:interestingMethods.

        generatingSourceForOriginal == true ifTrue:[

            "/ care for methods which have been shadowed by an extension from another package!!