1. 20 Mar, 2015 2 commits
    • Damien George's avatar
      py: Clarify API for map/set lookup when removing&adding at once. · d1cee027
      Damien George authored
      Addresses issue #1160.
    • Paul Sokolovsky's avatar
      py: Implement core of OrderedDict type. · 0ef01d0a
      Paul Sokolovsky authored
      Given that there's already support for "fixed table" maps, which are
      essentially ordered maps, the implementation of OrderedDict just extends
      "fixed table" maps by adding an "is ordered" flag and add/remove
      operations, and reuses 95% of objdict code, just making methods tolerant
      to both dict and OrderedDict.
      Some things are missing so far, like CPython-compatible repr and comparison.
      OrderedDict is Disabled by default; enabled on unix and stmhal ports.
  2. 06 Mar, 2015 1 commit
  3. 27 Feb, 2015 1 commit
    • Paul Sokolovsky's avatar
      objarray: Implement array slice assignment. · cefcbb22
      Paul Sokolovsky authored
      This is rarely used feature which takes enough code to implement, so is
      controlled by MICROPY_PY_ARRAY_SLICE_ASSIGN config setting, default off.
      But otherwise it may be useful, as allows to update arbitrary-sized data
      buffers in-place.
      Slice is yet to implement, and actually, slice assignment implemented in
      such a way that RHS of assignment should be array of the exact same item
      typecode as LHS. CPython has it more relaxed, where RHS can be any sequence
      of compatible types (e.g. it's possible to assign list of int's to a
      bytearray slice).
      Overall, when all "slice write" features are implemented, it may cost ~1KB
      of code.
  4. 23 Feb, 2015 1 commit
  5. 21 Feb, 2015 1 commit
  6. 15 Feb, 2015 1 commit
  7. 08 Feb, 2015 1 commit
  8. 25 Jan, 2015 1 commit
  9. 21 Jan, 2015 2 commits
    • Damien George's avatar
      py: Remove mp_obj_str_builder and use vstr instead. · 05005f67
      Damien George authored
      With this patch str/bytes construction is streamlined.  Always use a
      vstr to build a str/bytes object.  If the size is known beforehand then
      use vstr_init_len to allocate only required memory.  Otherwise use
      vstr_init and the vstr will grow as needed.  Then use
      mp_obj_new_str_from_vstr to create a str/bytes object using the vstr
      Saves code ROM: 68 bytes on stmhal, 108 bytes on bare-arm, and 336 bytes
      on unix x64.
    • Damien George's avatar
      py: Add mp_obj_new_str_from_vstr, and use it where relevant. · 0b9ee861
      Damien George authored
      This patch allows to reuse vstr memory when creating str/bytes object.
      This improves memory usage.
      Also saves code ROM: 128 bytes on stmhal, 92 bytes on bare-arm, and 88
      bytes on unix x64.
  10. 16 Jan, 2015 1 commit
  11. 11 Jan, 2015 1 commit
  12. 29 Dec, 2014 3 commits
  13. 10 Dec, 2014 1 commit
  14. 09 Dec, 2014 1 commit
    • Damien George's avatar
      py: Allow builtins to be overridden. · 78d702c3
      Damien George authored
      This patch adds a configuration option (MICROPY_CAN_OVERRIDE_BUILTINS)
      which, when enabled, allows to override all names within the builtins
      module.  A builtins override dict is created the first time the user
      assigns to a name in the builtins model, and then that dict is searched
      first on subsequent lookups.  Note that this implementation doesn't
      allow deleting of names.
      This patch also does some refactoring of builtins code, creating the
      modbuiltins.c file.
      Addresses issue #959.
  15. 08 Dec, 2014 1 commit
    • Paul Sokolovsky's avatar
      modsys: Add sys.print_exception(exc, file=sys.stdout) function. · 46c3ab20
      Paul Sokolovsky authored
      The function is modeled after traceback.print_exception(), but unbloated,
      and put into existing module to save overhead on adding another module.
      Compliant traceback.print_exception() is intended to be implemented in
      micropython-lib in terms of sys.print_exception().
      This change required refactoring mp_obj_print_exception() to take pfenv_t
      interface arguments.
      Addresses #751.
  16. 05 Dec, 2014 1 commit
  17. 29 Nov, 2014 1 commit
  18. 27 Nov, 2014 1 commit
  19. 16 Nov, 2014 2 commits
  20. 25 Oct, 2014 3 commits
    • Damien George's avatar
      py: Add mp_pending_exception global variable, for VM soft interrupt. · 124df6f8
      Damien George authored
      This allows to implement KeyboardInterrupt on unix, and a much safer
      ctrl-C in stmhal port.  First ctrl-C is a soft one, with hope that VM
      will notice it; second ctrl-C is a hard one that kills anything (for
      both unix and stmhal).
      One needs to check for a pending exception in the VM only for jump
      opcodes.  Others can't produce an infinite loop (infinite recursion is
      caught by stack check).
    • Paul Sokolovsky's avatar
    • Damien George's avatar
      py: Store bytecode arg names in bytecode (were in own array). · 1084b0f9
      Damien George authored
      This saves a lot of RAM for 2 reasons:
      1. For functions that don't have default values, var args or var kw
      args (which is a large number of functions in the general case), the
      mp_obj_fun_bc_t type now fits in 1 GC block (previously needed 2 because
      of the extra pointer to point to the arg_names array).  So this saves 16
      bytes per function (32 bytes on 64-bit machines).
      2. Combining separate memory regions generally saves RAM because the
      unused bytes at the end of the GC block are saved for 1 of the blocks
      (since that block doesn't exist on its own anymore).  So generally this
      saves 8 bytes per function.
      Tested by importing lots of modules:
      - 64-bit Linux gave about an 8% RAM saving for 86k of used RAM.
      - pyboard gave about a 6% RAM saving for 31k of used RAM.
  21. 23 Oct, 2014 1 commit
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  27. 17 Sep, 2014 1 commit
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  30. 07 Sep, 2014 3 commits
  31. 30 Aug, 2014 1 commit