The Trunk: Compiler-eem.374.mcz

Eliot Miranda uploaded a new version of Compiler to project The Trunk:
http://source.squeak.org/trunk/Compiler-eem.374.mcz

==================== Summary ====================

Name: Compiler-eem.374
Author: eem
Time: 9 March 2018, 5:26:54.927757 pm
UUID: 346de92b-2782-45ad-b91b-fc790654a88f
Ancestors: Compiler-eem.373

Make reindexingLiteralsDo: more robust when literals get added during blocks and are used in an outer scope after use in a block.  c.f. Compiler-eem.369

=============== Diff against Compiler-eem.373 ===============

Item was changed:
  ----- Method: BytecodeEncoder>>reindexingLiteralsDo: (in category 'code generation') -----
  reindexingLiteralsDo: aBlock
+ "Reset any and all literals so that they will be given new indices in
+ the literalStream during aBlock (which will be used to generate a
+ nested block method).  Afterwards restore those same literals to
+ their original state, and reset any and all new literals added during
+ aBlock  so that they will be given new indices if used subsequently."
  | savedNodes saveBlock |
  savedNodes := IdentityDictionary new.
+ saveBlock := [:node|
+ savedNodes at: node put: node shallowCopy.
+ node resetForBlockGeneration].
- saveBlock := [:node| savedNodes at: node put: node shallowCopy.  node resetForBlockGeneration].
  litSet do: saveBlock.
  litIndSet do: saveBlock.
  selectorSet do: saveBlock.
  ^aBlock ensure:
  [| restoreBlock |
+ restoreBlock := [:node|
+ savedNodes
+ at: node
+ ifPresent: [:copy| node resetFromCopy: copy]
+ ifAbsent: [node resetForBlockGeneration]].
- restoreBlock := [:node| node resetFromCopy: (savedNodes at: node)].
  litSet do: restoreBlock.
  litIndSet do: restoreBlock.
+ selectorSet do: restoreBlock]!
- selectorSet do: [:node| node resetFromCopy: (savedNodes at: node ifAbsent: [node])]]!