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VMSpurImageToComposedImageMigrationProcess.class.st
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VMSpurImageToComposedImageMigrationProcess.class.st
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Class {
#name : #VMSpurImageToComposedImageMigrationProcess,
#superclass : #Object,
#instVars : [
'interpreter',
'memory'
],
#category : #'VMMaker-PermSpace'
}
{ #category : #migrate }
VMSpurImageToComposedImageMigrationProcess >> copyChangesFileFromImage: originalImageString to: newImageString [
| originalImageFileReference originalChangesFileReference newImageFileReference newChangesFileReference |
originalImageString = newImageString ifTrue: [ ^ self ].
originalImageFileReference := originalImageString asFileReference.
originalChangesFileReference := originalImageFileReference withExtension: 'changes'.
originalChangesFileReference ifExists: [
newImageFileReference := newImageString asFileReference.
newChangesFileReference := newImageFileReference withExtension: 'changes'.
newChangesFileReference ensureDelete.
originalChangesFileReference copyTo: newChangesFileReference ].
]
{ #category : #migrate }
VMSpurImageToComposedImageMigrationProcess >> createSimulator [
| environmentBuilder memoryClass |
environmentBuilder := VMSimulatedEnvironmentBuilder new.
memoryClass := Spur64BitMemoryManager simulatorClass.
environmentBuilder
interpreterClass: StackInterpreterSimulatorLSB;
objectMemoryClass: memoryClass;
initializationOptions: {
#BytesPerWord. 8.
#ObjectMemory. memoryClass name.
#ImageReader. SpurImageReader name.
#ImageWriter. ComposedImageWriter name};
wordSize: 8;
initialCodeSize: 4*1024;
primitiveTraceLogSize: 0.
environmentBuilder doBuildSimulator.
interpreter := environmentBuilder interpreter.
memory := environmentBuilder objectMemory.
]
{ #category : #migrate }
VMSpurImageToComposedImageMigrationProcess >> loadImage: originalImage [
interpreter openOn: originalImage extraMemory: 0.
]
{ #category : #migrate }
VMSpurImageToComposedImageMigrationProcess >> migrate: originalImage to: newImage [
originalImage ~= newImage ifTrue: [ newImage asFileReference ensureDeleteAll ].
self createSimulator.
self loadImage: originalImage.
self saveImage: newImage.
self copyChangesFileFromImage: originalImage to: newImage
]
{ #category : #migrate }
VMSpurImageToComposedImageMigrationProcess >> saveImage: newImage [
interpreter imageName: newImage.
interpreter writeImageFileIO
]