[objC8] Encoder

[View] [Edit] [Lock] [References] [Attachments] [History] [Home] [Changes] [Search] [Help]

[objC8] Encoder

The ObjCEncoder produce objective-C source code from S8 smalltalk methods.
It is a customization of traditional S8Encoder framework used for jumping in all S8 platforms.

See files in build/library/objC subfolder of platform files

Jumping plan

Implement ObjCEncoder as part of S8Encoder framework
- See ObjCEncoder.st in build/library/objC subfolder of platform files
Implement web browsing of build system, for live debugging of method encoding
- Open index.html in build/browse subfolder of platform files
- Evaluate testing expressions e.g:
  ObjC8Exporter new objCMethodBody: (Object>>#smalltalk)
- Use U8 debugger (or Steps debugger) to halt and debug encoding

Mappings

Class mapping: Classes are mapped with name prefixed with NS or S8
Browse ObjC8Exporter implementation for #objCNameFor: #knownNSNames (e.g. Object String and Array) and #knownS8Names (e.g. Class Boolean Point)
All other class names are used without changes
Method mapping: Methods are encoded as Objective-c methods
- xcode impose that methods for all messages potentially sent MUST be implemented!
  we avoid the limitation during preparation for exporting
BlockClosures: ToDo - is objective-c block the best way to implement BlockClosure ?

ObjCEncoder methodsFor: #optimization

Macros for optimization category

#printingOptimizations
#mathOptimizations
#magnitudeOptimizations
#booleanOptimizations -toDo-
#coreOptimizations -toDo-
#evaluationOptimizations -toDo-
#s8Optimizations -toDo-

Indexed access for objects

Messages of the basicAt: ... family needs to access objects by selector/property, e.g. self[aString]
See ObjCEncoder implementation of

#visitNodeIndices:doing:
#visitIndexedAssignment