Embedded Files
ShapeChanger enables you to read class shape changed instances. It supports renamed, removed and newly added instance variables.
Basic ShapeChanger:
To define a new ShapeChanger, you should subclass base StompShapeChanger and override two methods.
StompShapeChanger >> loadAdditions
StompShapeChanger >> loadInstVarAt: varIndex named: varName put: varValue
Override the method for setting newly introduced field values to the shape changed instance.
Override the method for setting renamed fields to the shape changed instance.
To register a ShapeChanger, you can:
Object fromStomp: bytes setting: [:context |
context registerShapeChanger: YourShapeChanger for: YourShapeChangedClass ].
There is a StompMockShapeChanger in StompTest-Core package. Please see the running example.
Block ShapeChanger:
StOMP also supports BlockShapeChanger. You can register shape change procedures without subclassing StompShapeChanger.
Object fromStomp: bytes setting: [:context |
context registerShapeChangerRenameBy: [:target :oldName :value | oldName = 'instVar2OLD' ifTrue: [target instVar2: value]. ] initializeBy: [:target | target instVar5: 'FIVE' ] for: YourShapeChangedClass ].
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