"

 COPYRIGHT (c) 1989 by Claus Gittinger

	      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.

"

Object subclass:#ClassCategoryReader

       instanceVariableNames:'myClass myCategory privacy ignore primSpec'

       classVariableNames:'KeepSource'

       poolDictionaries:''

       category:'Kernel-Support'

!

ClassCategoryReader comment:'

COPYRIGHT (c) 1989 by Claus Gittinger

	     All Rights Reserved

$Header: /cvs/stx/stx/libbasic/ClassCategoryReader.st,v 1.19 1995-09-09 18:32:08 claus Exp $

'!

!ClassCategoryReader class methodsFor:'documentation'!

copyright

"

 COPYRIGHT (c) 1989 by Claus Gittinger

	      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.

"

!

version

"

$Header: /cvs/stx/stx/libbasic/ClassCategoryReader.st,v 1.19 1995-09-09 18:32:08 claus Exp $

"

!

documentation

"

    a helper class for fileIn - keeps track of class and category to filein for.

    Instances of this are created by the #methodsFor: methods in Class, to

    read the next chunk(s) from a stream.

"

! !

!ClassCategoryReader class methodsFor:'initialization'!

initialize

    KeepSource := true

! !

!ClassCategoryReader class methodsFor:'defaults'!

keepSource:aBoolean

    KeepSource := aBoolean

    "Created: 9.9.1995 / 15:22:26 / claus"

!

keepSource

    ^ KeepSource

    "Created: 9.9.1995 / 15:22:27 / claus"

! !

!ClassCategoryReader class methodsFor:'instance creation'!

class:aClass category:aCategory

    "return a new ClassCategoryReader to read methods for aClass with

     methodCategory aCategory"

    ^ self new class:aClass category:aCategory

!

class:aClass primitiveSpec:which

    "return a ClassCategoryReader to read a primitiveSpec chunk"

    ^ self new class:aClass primitiveSpec:which

!

skippingChunks

    "return a class categoryReader which skips chunks up to the next empty one"

    ^ self new ignoreMethods

! !

!ClassCategoryReader methodsFor:'private'!

class:aClass category:aCategory

    "set the instance variables"

    myClass := aClass.

    myCategory := aCategory.

    ignore := false

!

class:aClass primitiveSpec:which

    "set the instance variables"

    myClass := aClass.

    primSpec := which.

    ignore := false

! !

!ClassCategoryReader methodsFor:'special'!

privateProtocol

    privacy := #private

! 

protectedProtocol

    privacy := #protected

! 

ignoreMethods 

    ignore := true

! !

!ClassCategoryReader methodsFor:'fileIn'!

fileInFrom:aStream notifying:requestor passChunk:passChunk

    "read method-chunks from the input stream, aStream; compile them

     and add the methods to the class defined by the class-instance var;

     errors and notifications are passed to requestor"

    |aString done method compiler makeSourceRef sourceFile pos|

    Smalltalk silentLoading ifFalse:[

	Transcript show:'  '; show:myClass name; show:' -> '; showCr:myCategory.

    ].

    makeSourceRef := false.

    KeepSource == false ifTrue:[

	aStream isFileStream ifTrue:[

	    sourceFile := aStream pathName.

	    sourceFile printNL.

	    makeSourceRef := true.

	]

    ].

    done := false.

    [done] whileFalse:[

	done := aStream atEnd.

	done ifFalse:[

	    makeSourceRef ifTrue:[

		pos := aStream position

	    ].

	    aString := aStream nextChunk.

	    done := aString isNil or:[aString isEmpty].

	    done ifFalse:[

		primSpec notNil ifTrue:[

		    myClass perform:primSpec with:aString.

		    "

		     ignore rest

		    "

		    ignore := true

		].

		ignore ifFalse:[

		    passChunk ifTrue:[

			requestor source:aString

		    ].

		    compiler := myClass compilerClass.

		    "/

		    "/ kludge - for now;

		    "/ have to make ST/X's compiler protocol be compatible to ST-80's

		    "/ for other compilers to work ... (TGEN for example)

		    "/

		    (compiler respondsTo:#compile:forClass:inCategory:notifying:install:skipIfSame:)

		    ifTrue:[

			"/ ST/X's compiler

			method :=compiler

				     compile:aString

				     forClass:myClass

				     inCategory:myCategory

				     notifying:requestor

				     install:true

				     skipIfSame:true.

			makeSourceRef ifTrue:[

			    method source = aString ifTrue:[

				method sourceFilename:sourceFile position:pos 

			    ]

			]

		    ] ifFalse:[

			"/ some generated (TGEN) compiler

			method := compiler new

				      compile:aString 

				      in:myClass 

				      notifying:requestor 

				      ifFail:nil

		    ].

		    privacy notNil ifTrue:[

			privacy == #private ifTrue:[

			    method setToPrivate

			] ifFalse:[

			    privacy == #protected ifTrue:[

				method setToProtected

			    ]

			]

		    ]

		]

	    ]

	]

    ]

    "Modified: 9.9.1995 / 15:29:08 / claus"

!

fileInFrom:aStream

    "read method-chunks from the input stream, aStream; compile them

     and add the methods to the class defined by the class-instance var"

    self fileInFrom:aStream notifying:nil passChunk:false

! !