Meeting weekly 2011 12 06

Attending: brson, nmatsakis, graydon

Topics:

• Closures: unique and otherwise

  • Have to make closed over state immutable and immobile (treat as reference)
  • Merge bare functions (fn) and unique closures so that we have:
    • functions: sendable
    • lambdas: shared closures, not sendable
    • blocks: only within current stack frame
  • C interopability? Unclear how this will be managed

• Performance on x86_64

  • Culprit seems to be poor hashtable lookups
  • Maybe hashtables are degrading into linked lists?

• Object system

  • Insufficient quorum to really discuss

• Status of stack growth

  • Working on mac/linux but for unwinding
  • Need to impl. on windows
  • Unwinding unsupported on windows because LLVM doesn't support it
  • We might want to move away from DWARF and keep our own shadow stack

• Blockers for 0.1 release

  • Mostly small stuff
  • Graydon added some version of cargo to the list
    • "first thing we'll want to do is package up libraries"