5 + Most internal allocations now use the GC
6 + RNG non-randomnes fixes
7 + Elimination of much dead code
9 + PMCs can now be initialized from an int
10 + Many legacy ops are removed
12 + Sun cc and Intel icc support have been restored
13 + Compiler invocation no longer goes through a Perl script
15 + NCI thunks are now generated by self-hosted PIR code
19 + GC performance and encapsulation were greatly improved.
20 + PMC freeze refactored.
21 + More Makefile and build improvements.
23 + The Array PMC was removed.
24 + Several deprecated vtables were removed.
25 + The OrderedHash PMC was substantialy improved.
27 + Packaging improvements on some operating systems.
29 + Some cases in pbc_merge are now handled.
30 + Improvements were made to the dependency checker.
31 + New tool nativecall.pir added.
35 + Context PMCs now support attribute-based introspection
36 + Context and CallSignature PMCs merged into CallContext
37 + .lex directive throws exceptions when used with incorrect register types
39 + Packaging improved for free OS distributions
40 + PPC, PPC64, and ARM now tested when running Linux
42 + Minor improvements to the profiling runcore
43 + Improvements from the CallContext PMC merge
45 + In/out parameters in STRING modification functions
46 + Void handling in NCI signatures
47 + Parameter passing opcodes order in PBC
49 + Continued migration of core tests from Perl 5 to PIR
51 + dependency checker improved
53 + Deprecation cycle length changed to three months from six
54 + GC accuracy improved
55 + PMC freeze improvements; much more reliable
56 + Makefile improvements for dependency handling
60 + Made profiling runcore output format configurable and extensible
61 options include "pprof" and "none" ("binary" and "callgrind" are planned)
62 + Added environment variables to specify profiling output type and filename
63 (PARROT_PROFILING_OUTPUT and PARROT_PROFILING_FILENAME)
64 + Began merging Freeze/Thaw and Bytecode generator/loader
66 + Included latest nqp-rx compiler, with many improvements
67 - GLOBAL:: package identifier
68 - dynamic variables look in global namespace
69 - $obj."$method" syntax
70 - :p(os) and :c(ontinue) option on regexes
71 - try/CATCH/CONTROL handling
72 - support leading & on subroutine declarations
73 - allow "category:<symbol>" names (for builtin operators)
74 - simple version of smartmatch operator
75 - simple regex matches
76 - updated HLL::Compiler with new import/export methods
78 + Portability updates for RTEMS, and Intel architectures with GNU compilers
79 + Completed conversion of ticket tracking system from RT to Trac
80 + New draft of PDD31 for HLL export API and import implementation
81 + Several (build time, runtime) performance improvements
82 + Converted many tests to PIR, reducing test execution time
83 + Various bugfixes, code cleanups, and coding standard fixes
87 + The FileHandle PMC now exposes the exit code of child process that was run as pipe.
88 + Experimental support for overriding VTABLE invoke in PIR objects was added.
89 + The method 'type' was added to the PackfileAnnotations PMC.
90 + The internals of the parrot calling conventions, PCC, were reworked.
91 All call paths now use a CallSignature object for passing arguments and return values.
92 + The new API-function 'Parrot_ext_call' was added for calling into C-land.
93 + The fixed-size allocator was improved.
94 + The files installed by 'make install-dev' are now covered by 'make install' as well.
95 + The experimental ops 'fetch' and 'vivify' were added.
96 + The -I option to the command 'parrot' now prepends items to the search path.
97 + The Context struct was substituted with auto attributes (context_auto_attrs branch).
98 + Use the osname determined in auto::arch in subsequent configuration steps (convert_OSNAME branch).
99 + Eliminated dependence on Perl 5 '%Config' in auto::format (auto_format_no_Config branch).
100 + MultiSub PMCs now stringify to the name of their first candidate,
101 instead of the number of candidates.
102 + The platform detection at the start of the configuration process was improved.
103 + The 'lineof' method on CodeString objects now precomputes line number information
104 to be more efficient on variable-width encoded strings.
105 + P6object now supports .WHO and .WHERE methods on protoobjects.
107 + A shiny new self-hosting implementation of NQP has been added in ext/nqp-rx.
108 - New NQP available as nqp-rx.pbc or parrot-nqp fakecutable.
109 - NQP includes direct support for grammars and regexes, including protoregexes.
110 - NQP has a new PAST-based regex engine (intended to replace PGE).
111 - Regexes may contain code assertions, parameters, lexical declarations, and more.
112 - Double-quoted strings now interpolate scalar variables and closures.
113 - Subroutine declarations are now lexical by default.
115 - PAST::Block now supports an 'nsentry' attribute.
116 - PAST::Var allows 'contextual' scope.
117 - Attribute bindings now return the bound value.
119 + Fixes for the port of Parrot to RTEMS were applied. Yay, first port to a real time OS!
120 + On NetBSD, shared libs are now used.
122 + Use the the fixed-sized allocator in the Context and the CallSignature PMC.
123 + Many small speed improvements.
125 + MT19937, the Mersenne twisted pseudorandom number generator, is now hosted on github and
126 will be removed from the Parrot core. (eligible in 2.1)
127 + The 'Parrot_call_*' functions for invoking a sub/method object from C are
128 deprecated. They are replaced by 'Parrot_ext_call'. (eligible in 2.1)
129 + All bitwise VTABLE functions are deprecated. (eligible in 2.1)
130 + All bitwise ops will become dynops. (eligible in 2.1)
131 - Realized deprecations
132 + The slice VTABLE entry was removed.
133 + The last traces of the 'malloc' garbage collector were removed.
134 + Parrot_pcc_constants() was renamed to Parrot_pcc_get_constants().
135 + The deprecated functions from the Embedding/Extension interface were removed.
136 + The library YAML/Parser/Syck.pir was removed.
137 + The VTABLE function instantiate_str() was removed.
138 + Building of parrot_nqp was removed.
140 + The test coverage of the time-related ops was much improved.
141 + New testing functions in Test::More: lives_ok() and dies_ok().
142 + The Perl 5 based test scripts t/op/bitwise.t, t/op/comp.t, t/op/inf_nan.t,
143 t/op/literal.t, t/op/number.t, t/op/sprintf2.t, and t/op/00ff-dos.t were converted to PIR.
144 + The test scripts t/op/annotate.t and t/op/time.t have begun
145 to be translated from Perl 5 to PIR.
146 + In some tests the dependency on %Config from Perl 5 was eliminated.
148 + The meaning of 'p' means in NCI function call signatures was clarified.
150 + The stub for a new language, as created by mk_language_shell.pl,
151 now relies on the PIR-based tools, which are replacing the Perl 5-based tools.
152 + The library Configure.pir was added.
153 + The library distutils.pir was added.
155 + The mailing list parrot-users and a corresponding google group was created,
156 http://groups.google.com/group/parrot-users.
157 + Many bugfixes, code cleanups, and coding standard fixes.
161 + Parrot_capture_lex has been added to the PARROT_EXPORT API
162 + PARROT_MAX_ARGS has been increased from 8 to 16 to allow for ops that take more than 8 args
164 + The profiling runcore now caches metadata for improved performance
165 - Maintenance and cleanup
166 + Expanded the Parrot debugger documentation
167 + Parrot debugger now uses the new Parrot STRING API
168 + Continue to port rest of internals to use the STRING API
170 + The JIT subsystem has been removed and is being written from the ground up. More
171 information can be found at https://trac.parrot.org/parrot/wiki/JITRewrite
172 + Implicit optional named parameters (eligible in 2.1)
173 + Continuation-based ExceptionHandlers (eligible in 2.1)
174 + Use of undocumented variables in class_init (eligible in 2.1)
175 + Parrot_oo_get_namespace (eligible in 2.1)
177 + Improved line number tracking in IMCC
179 + Converted many more Perl 5 tests to PIR
180 + Expanded test coverage of the CallSignature, Namespace, FixedPMCArray,
181 ResizeableIntegerArray and ExceptionHandler PMCs
185 + Added a fixed-size structure allocator to the Garbage Collector
186 + Added a "lazy" mode to the PObj and Fixed-Size memory allocators
187 + Added a profiling runcore, which generates Callgrind-compatible output
188 + Added lexical subsystem opcodes: find_dynamic_lex, store_dynamic_lex
189 + Converted Contexts to garbage-collectable PMC structures
190 + Created a new Context API
191 + Enhanced the PMC allocator to automatically allocate ATTR structures
193 + Optimized opcodes to cache the current Context for subsequent lookups
194 + Reduced string comparisons in VTABLE_isa
195 - Maintenance and cleanup
196 + Began proper encapsulation of STRING API
197 + Unified all PMC destruction functions
198 + Unified Continuation PMC and Parrot_cont structure
199 + Unified Sub PMC and Parrot_sub structure
200 + Removed PMC_EXT structure
201 + Removed PMC_Sync from PMC
202 + Removed UnionVal from PMC structure
204 + Fixed several stack-walking bugs in Garbage Collector code
205 + Fixed bug when copying a NULL STRING, now returns empty STRING struct
207 + Converted several Perl5 tests to PIR
208 + Expanded test coverage of NameSpace PMC
210 + Made Parrot Compiler Toolkit available in the base install
214 + Removed several deprecated functions and features
215 + Removed bsr, jsr, branch_cs, and ret opcodes
216 + Removed global stacks system
217 + Changed OPS file format to include explicit preamble
218 + Changed all "new 'Iterator'" instructions into 'iter' instructions
219 + Removed Configure.pl options for specifying non-working GC cores
220 + Removed unexecuting code as found by Coverity
221 + Improvements to the Parrot Debugger
222 + Added experimental fixed-size structure allocator to the GC
223 + Added experimental lazy arena allocation to the GC
224 + Refactored hashes, keys, and iterators
225 + Added "corevm" make target to build Parrot without all the supporting libraries
226 + Removed Random PMC type and added in a "rand" dynop
227 + Optimization and Improvements to the NCI thunk generator
228 + New include file libpaths.pasm
230 + Multiple .local with same name and different type is now an error on IMCC.
232 + Improved support for detecting Fink and Macports
233 + Updated search directories for libraries
235 + "Parrot Developers Guide: PIR" released to publisher and available to purchase
236 + Improved documentation about Parrot Debugger
237 + Update PGE Documentation
239 + Deprecate 'PASM1' compiler object, update to warn instead of segfault
241 + Fixes to code, documentation, and standards
245 + Key and Iterator refactor
246 + Major pbc_to_exe generated code speed improvement
247 + New "Infinite Memory" GC core for demonstration purposes
248 + gc_debug runcore and GC-related heisenbug fixes
249 + Elimination of variable expansion in parrot_config
250 + CLI arguments are processed as Unicode by default
251 + Substantial optimizations in NCI
252 + Parrot builds on Win64
253 + Hashes can use native types as keys and values
254 + Fixed installed pbc_to_exe
255 + Simplification of PMC generation code
256 + Improved GC encapsulation and API documentation
258 + List of candidates for embedding API (docs/embed.pod)
259 + PIR book sent to publisher
261 + Several conversions of Perl test to pure PIR.
262 + C indentation coding standards test improvement
263 + Improved test coverage of example code
265 + Removal of PGE rules: <null> <fail> <sp> <lt> <gt> <dot>
266 + Removal of PGE methods: .text .item .result_object
267 + Deprecation of most dynops
269 + Beginnings of OpenGL::Math library; OpenGL bindings and library marked experimental
270 + Localizing and consting fixes
271 + Many memory and thread-related leaks plugged
275 + Optimized parts of the IO system
276 + Fixed inheritance hierarchy of FileHandle and Socket PMC types
277 + Fixed leaks involving subroutines and Parrot_Context
278 + Cleaned up and refactored GC internals, including fixes and optimizations
279 + Optimized PMC class manipulations to use type numbers instead of string names
280 + Fixed problems involving hashval calculations in strings
281 + Removed unnecessary MULTI dispatches in built-in PMCs
282 + Fixed memory leaks involving PMCs that were not properly destroyed
283 + Fixed creation of PMCProxy PMCs in correct namespaces
284 + Added preliminary Pipe support
285 + Fixed cloning of Object PMCs
286 + Added root_new opcode
287 + Added initial versions of Packfile PMCs with read/write capabilities
289 + Fixed several memory leaks in IMCC
290 + Updated PCT to use root_new opcode
291 + Added support for keyword "self" in NQP
293 + Improved and expanded /docs/book
294 + Updated project documentation
295 + Defined 'experimental' status and procedures in DEPRECATED.pod
297 + Cleaned code and improved code-level documentation
298 + Various bugfixes, code cleanups, and coding standard fixes
299 + Added an experimental compiler library to help use PIR libraries from HLLs
300 + Updated OpenGL library and examples to support experimental HLL import
304 + Fixes for pir classes inheriting from core pmcs.
305 + Cleaned up headers and reorganized some sources into subsystem directories.
306 + Clean up PMCs so libparrot.so exports far fewer vtable/method symbols.
307 + Clean up the GC API.
308 + Several unicode identifier improvements in IMCC.
310 + Protoobject stringification is gone.
312 + Rewrite several core documents.
313 + Many reworks, improvements & additions to the Parrot Book.
314 + Installation PDD is launched out of draft.
316 + Fixes for running the language shell generator outside the parrot tree.
317 + Several fixes for developing and building HLLs from an installed parrot.
318 + Configure.pl now has a --no-line-directives option to ease source level debugging.
320 + Portability updates for macports, netbsd, mingw32, hpux.
321 + Several (build time, runtime) performance improvements.
322 + Lots of updates to examples and tests.
323 + Various bugfixes, code cleanups, and coding standard fixes.
327 + Added op: load_language, find_caller_lex
328 + Socket IO are back as PMC
329 + Refactor some PMC: Hash, ManagedStruct
333 - Allow \x, \c, and \o in enumerated character classes (incl ranges)
334 - Add initial greedy-only version of ** <exp> quantifier
336 - Add HLL source line bytecode annotations
337 - Add another dumper format to assist syntax highlighters
338 - Revise mk_language_shell.pl to updated create_language.pl
340 + Removed ops: gcd, exec, classname, need_finalize, runinterp, substr_r
341 + Removed dynamic op: mul
342 + Removed .HLL_map directive; use interp's .hll_map() instead
343 + Removed PMCs: slice, bound_nci, ref
344 + Removed Configure.pl option: --pmc
345 + Removed PMC union struct
348 - Reorganization and many improvements & additions
350 + Add a parrot-fuzzer
352 + Improve Debian/Ubuntu package
353 + various bugfixes, code cleanups, and coding standard fixes
358 + New user documentation for exceptions.
359 + Updates to Chapters 4 & 5 of the Parrot book.
360 + Improved and expanded generated HTML documentation, as the input for
361 http://docs.parrot.org.
362 + Added Compiled HTML Help (.chm) version of documentation.
363 + Cleanups and fixes.
366 - left the nest and is now at http://pynie.googlecode.com/
368 - left the nest and is now at http://github.com/cardinal
370 - left the nest and is now at http://paraplegic.googlecode.com/
371 + ABC, Squaak, and Befunge moved to examples/.
372 + All remaining languages moved to https://svn.parrot.org/languages/
374 + Support for language builds from an installed Parrot.
375 + Expanded language shell generator for new languages.
376 + 'parrotbug' utility repurposed for the Trac interface.
378 + Removed deprecated Tqueue and Closure PMCs.
379 + String, Key, NCI, LexPad, Iterator, Sub, Continuation, RetContinuation,
380 ExceptionHandler, ParrotLibrary, ParrotInterpreter, ParrotThread,
381 ParrotRunningThread, Rational, FixedPMCArray, ResizablePMCArray, and
382 GDBMHash PMCs now use declared attributes (ATTR), in place of the
388 + Support for portable 'Inf', 'NaN' and -0.0
389 + pbc_disassemble prints constants in constants table
390 + New experimental BigNum implementation
391 + Pair is now a dynamic loadable PMC
392 + Various function name sanification
393 + New implementation of Strings component
394 + Replace various PMC value union access code by VTABLE method invocations
395 + Replace various PMC value unions by ATTRibutes
396 + Removed SArray PMC. Use FixedPMCArray instead.
399 - updates to Chapter 2 (getting started)
400 - updates to Chapter 3 (PIR basics)
401 - updates to Chapter 4 (PIR subroutines)
402 - updates to Chapter 10 (HLLs)
403 - updates to Chapter 12 (opcodes)
404 + Function documentation
405 + Pod documentation style modernized; no longer Perl 5 style.
406 + PMC has an additional acronym: Poly Morphic Container
407 + The DOD (Dead Object Detection) acronym is no longer used;
408 use 'GC' to refer to the Garbage Collector component.
411 - :named flag can now take string registers as argument
412 - A single '=cut' directive is now ignored (without initial Pod directive)
413 - :vtable subs now have proper access to 'self' pseudo variable
415 + add new 'Pod' documentation parser
416 + Pipp (PHP implementation):
417 - Pipp is now at http://github.com/bschmalhofer/pipp
418 - support for 'print', 'dirname', 'implode', 'str_replace',
419 - various grammar fixes
421 + add 'quit', 'readline' builtins
422 + fix 'Boolean' type and 'print' builtin
424 - left the nest and is now at http://github.com/fperrad/lua/
426 - left the nest and is now at http://github.com/rakudo/rakudo/
427 - build instructions can be found at http://tinyurl.com/rakudo
429 - left the nest and is now at http://github.com/bschmalhofer/lazy-k.git
431 - left the nest and is now at http://github.com/bschmalhofer/unlambda/
433 - left the nest and is now at http://github.com/fperrad/wmlscript.git
434 + removed Zcode implementation
437 - ATTRs are now inherited automatically in subclassing PMCs
439 + Parrot_readbc, Parrot_loadbc renamed to Parrot_pbc_read, Parrot_pbc_load.
440 + .HLL_map directive in favour of 'hll_map' method on Parrot interpreter
441 + Data::Escape library
443 + pbc_disassemble options added
444 + pbc_dump renamed from pdump
446 + Parrot is now Copyright Parrot Foundation
447 + Parrot's SVN repository is now hosted at https://svn.parrot.org
448 + Various code cleanups, consting, 64-bit incompatibilities and other bug fixes
451 New in January 2009 release (0.9.0)
453 + Implemented bytecode annotations
454 + Role composition is now aware of multi-subs
455 + Unbuffered IO PMCs now autopromote when buffering is necessary
456 + Installation parrot binary and libparrot shared library now supported
457 + Class registry now respects HLLs
460 - removed keyed string indexing, e.g. $S0[1].
461 - removed slice syntax, e.g. $P0[1..2]
462 - removed .namespace <ident>/.endnamespace <ident> pair
463 - fixed 'new $P0, [classname]' syntax
465 - refactoring of various data structures
466 - various bug fixes and updates
467 - complete bytecode generation
468 - add '-x' commandline option to run compiled code
470 - add 'hll' and 'subid' attributes to PAST::Block
471 - refactor loop handling code to handle last/redo/next
472 - add :pasttype('stmts') and :pasttype('null')
473 - improve "scope not found" error message
474 - allow PAST::Val nodes to contain block references
476 - add "skipkey" option to PGE::OPTable
477 - allow spaces before modifiers in regexes
478 - add '(' ~ ')' goal matching syntax
479 - skip creating a class/grammar if it already exists
482 - improved error mesages in multi dispatch
483 - implemented clone method for all objects
484 - implemented MAIN sub
485 - Unicode versions of infix hyper operators
486 - refactored IO.readline
487 - basic support for Inf and NaN
488 - list and array slices with whatever star
490 - implemented last and redo
491 - pointy blocks as terms
492 - refactored variable and parameter passing
493 - improved assignment semantics
494 - improved parsing of type names and subs
495 - mostly implemented parametric roles
496 - separate types for blocks, subs and methods
497 - basic support for submethods
498 - implemented Junction autothreading of user code (not builtins yet)
499 - eval supports :lang attribute
500 - proto makes other subs in scope multis, including in role composition
502 - back to working state
505 - add support for predefined constant __CLASS__ and __METHOD__
506 - add initial support for static members
507 - add support for namespaced constants
508 - constants are now handled as package vars
509 - variables are now lexical variables
510 - add support for superglobals in functions
511 - Call the class __constructor when there is one
512 - added incomplete support for closures
513 - removed support for the alternative parsing strategies
514 - added support for 'elsif'
515 - added support for 'do-while'
517 - left the nest and is now at https://github.com/bschmalhofer/hq9plus/
519 - left the nest and is now at http://github.com/bschmalhofer/eclectus/
521 - left the nest and is now at http://github.com/bschmalhofer/m4/
523 - add a minimalist user back trace
525 - "does" and "morph" VTABLE interfaces are now overridable from PIR
528 - 'make smoke' now generates Smolder reports sent to
529 http://smolder.plusthree.com/app/public_projects/smoke_reports/8
530 + Improved const and null correctness for C function parameters
531 + Sped up STRING manipulation (append, chop), improving PGE about 30%
533 - Added sections about Classes, OO programming, and methods.
534 - Added information about Annotations, Exceptions, and Handlers
536 - Removed non-functional STM subsystem
541 + fixed lexical semantics
542 + added the 'capture_lex' opcode
543 + added automatic resume for nonfatal exceptions
544 + added multidispatch cache
545 + applied miscellaneous performance improvements, including startup time
546 + fixed several bugs and leaks found by Coverity Scan
547 + removed race conditions from parallel testing
550 - removed undocumented .param int <stringc> => <ident> syntax
551 - .line directive now only takes an integer argument
552 - new .file directive to specify the file name being compiled
554 - properly handles lexical generation and closure semantics
555 - uses :subid instead of name lookups to reference PAST::Block nodes
556 - added PAST::Control node type (exception handlers)
558 - add support for <?{{...}}> and <!{{...}}> assertions
559 - Match objects use Capture PMC instead of Capture_PIR
561 - add macro handling to PASM mode
562 - disable vanilla register allocation in PASM mode, but do allow optimization
563 - add tests and bug fixes
564 - first bits of bytecode generation. No sub calling/returning yet.
567 - fixed lexical handling and recursion
568 - refactored subtypes implementation
569 - support for quotes with multi-character delimiters
570 - implemented list slices (Positional role)
572 - reduction meta operators
573 - hyper meta operators
574 - cross meta operators
575 - more builtin functions
577 - basic support for protos
578 - iterator on filehandle objects
579 - basic support for exception handlers
582 - added complex & mathx libraries
583 - merged LuaClosure & LuaFunction PMC
585 - added support for a return value from user defined functions
586 - added incomplete implemention of 'require_once'
588 - parser fixes, parses spidermonkey's top level test/shell.js
590 + PARROT_API is now PARROT_EXPORT
592 - :lexid is now :subid
593 - .arg is now .set_arg
594 - .result is now .get_result
595 - .yield (in .begin/end_yield) is now .set_yield
596 - .return (in .begin/end_return) is now .set_return
597 - .namespace x / .endnamespace x syntax is removed
598 + Capture_PIR (runtime/parrot/library/Parrot/Capture_PIR.pir)
602 + added CPAN module Storable 2.12 as a configuration and build dependency
603 + removed the pseudo PIR opcode 'addr'
604 + added the 'box' opcode
605 + fixed 'pop_eh' handling in PIR libraries and examples
606 + removed usage of .return for tailcalls (use .tailcall instead)
607 + removed 'get_hash' and 'get_array' from Capture PMC and Capture_PIR
608 + improved debugger and HLL coordination
609 + allowed MMD primitive autoboxing
610 + fixed all known memory leaks in PIR "Hello, world!"
611 + NCI signatures now JITted on x86-32 platforms (Windows and Linux)
612 + made the .const directive take a quoted type name instead of a constant
613 + made IMCC more re-entrant
616 - refactored Junctions implementation
617 - added "fire and forget" tool to rebase/rebuild/test Parrot and Rakudo
618 - updated container/reference semantics
619 - added more builtin methods and functions
620 - improved support for multilevel namespaces
621 - added support for .Str, .succ, .pred in user-defined classes
622 - implemented pointy blocks on if/loops
623 - increased STD.pm convergence
625 - improved MMD candidate sorting
626 - improved integration of Num and Int
627 - implemented increment on protoobjects
628 - added initial support for MAIN subs
629 - added .PARROT method
631 - added some predefined constants
632 - added implemention of the function basename()
634 - Added initial support for the classes Proc, Continuation, Queue, Dir, File, and FileStat
635 - fixed various minor bugs
636 - fixed broken Regexes
639 - added '.isa' method to PCT::Node
640 - cleaned up 'immediate block' handling
641 - allowed arguments to immediate blocks in loops/conditionals
642 - metaclass objects can now 'add_method'
644 - integrated macro processing in PIRC's lexer
645 - integrated heredoc lexer in PIRC executable
646 - added preprocess and heredoc-preprocess commandline options
647 - integrated the PASM grammar into PIRC
648 - added a register allocator to optimize the built-in vanilla allocator
649 - code cleanups and documentation
650 - added 'make test' target
652 - updated to work with new namespace/classname syntax
654 + PARROT_API will become PARROT_EXPORT
655 + :lexid will become :subid
658 - updates and additions to the Parrot book (see docs/book/)
660 - minor fixes to Parrot's base OpenGL bindings
661 - converted OpenGL PIR examples to Perl 6 (two complete, one WIP)
662 - added simplified OpenGL PIR example for NCI JIT testing
664 - further improvements to parallel tests
665 - tests no longer leave filesystem breadcrumbs
666 - more thorough testing of Parrot::Test itself
670 + float precision expanded to 15 significant digits from 6
671 + large integers autopromoted in PIR so as not to lose precision
672 + improved precision of complex square root
673 + exception handlers can register types of exceptions they catch
676 - implemented gather, take, and yield builtins
677 - Range, Time, Math, GC, Kernel classes
679 - added a new committer
680 + Markdown : new lightweight markup language
681 - start implementation with PCT/NQP
683 - Moved to its own repository: http://code.google.com/p/partcl/
685 - split() works with regexes
686 - implemented Str.comb
687 - ord() and chr() builtins
688 - improved parsing of literal numbers
689 - support for hyphens and dashes in identifiers
690 - next() on for-loops
691 - fixed floating point constant precision
692 - improved namespace handling, closer to STD.pm model
693 - support for exporting symbols
696 - now generates classes in nested namespaces instead of :: names
697 - supports class creation in caller's HLL namespace
699 - now using true nested namespaces instead of :: names
700 - cleaned up HLLCompiler interactive prompts and readline mode
701 - updated to use typed exception handler registration
702 - added initial support for loop control exceptions
704 - fixed Heredoc preprocessor
705 - cleaned up Macro preprocessor
706 - many code clean-ups, warning fixes and consting
707 - updated Makefile for easier compilation
709 - Added .tailcall syntax to replace .return in tailcall context
712 - an old style line numbered Basic interpreter able to use parrot objects
713 - example connecting to mysql via nci
714 - example using classes to write and run an embedded Basic program
717 - Added chapters for PCT, PMCs, and Opcodes/Runcores
718 - Expanded and improved formatting in various chapters
719 - Renumbered chapters
724 + add -I and -L command line options
725 + support for null strings in NCI calls
726 + preliminary support for resumable exceptions
727 + add '.hll_map' method for dynamic HLL type mapping
728 + more parrot_debugger fixes
729 + remove obsolete '.past' extension
732 - now over 3300 passing spectests
733 - precompiled modules
734 - precompiled scripts (--target=pir can now be executed standalone)
735 - Support for @*INC and %*INC varialbes
736 - additional builtin methods and subs
737 - added 'fail' function, warnings on use of undefined values
739 - qq, qw, q quoting forms
740 - run tests in parallel
744 - 'require' and precompiled modules
746 - all Array tests pass
748 - default arguments to functions
752 - add :loadinit attribute for PAST::Block
754 - major refactoring to allow all PIR keywords as identifiers
755 - links to libparrot now, so all Parrot ops are recognized as such
756 - implemented .loadlib, .HLL_map, .HLL
758 + add Xlib and Mysql modules and test programs to NCI examples
759 + many updates and cleanups to PDD documents
763 + PDD27: add multisub lookup
765 + new concurrency implementation (see PDD25)
766 + Exception PMC now captures a return continuation
767 + improved PMC encapsulation (Iterator, Key, Pair)
771 - parsing improvements
772 - minor additions to class builtins
773 - add support for block parameters to functions
775 - various language fixes
776 - refactor all libraries (namespace, method registration)
777 - add a OpenGL binding (still incomplete)
778 - lost user back trace (see ppd25 & pushaction)
780 - add support for while- and for-loops
781 - add support for increment and decrement
782 - designate PHP 5.3 as the reference implementation
783 - improve support for string literals
785 - removed due to bit rot
787 - now over 2200 passing spectests
788 - updated the Rakudo roadmap
789 - Perl 6 multi dispatch
790 - dispatch with slurpies
791 - class attributes ("my $.x")
793 - OO and metaclass improvements (.WHAT, .WHICH, .WHENCE)
794 - additional builtin methods and subs
795 - improved make test targets and harness
797 - implement [lreverse], [lsort -command]
798 - allow [incr] to autovivify
799 - update tclsh spec target to 8.5.3
800 - fix bug in TclDict PMC, allowing ~200 more [dict] spec tests to pass
801 - update 'make spectest' fudging, using TODO instead of SKIP if possible
804 - :scope('register') for PAST::Var nodes
805 - allow invocant specification in attribute scope PAST::Var nodes
806 - correct ordering of sub generation from POST
807 - add 'loadinit' attribute to PAST::Block for block initialization
809 - PIR registers now use the vanilla register allocator
810 - all PASM output now uses PASM registers
811 - all .locals and $registers are mapped
812 - clean-up of grammar, back-end and documentation
813 - implemented constant folding
814 - implemented instruction selection
816 + tests now clean up after themselves
817 + improved parallel test support
819 + Darwin problems fixed
821 + parrot_debugger renamed from pdb, numerous tweaks
824 + :vtable implies self in PIR
825 + modest core speed improvements
826 + Cygwin support improved
827 + "say" now an opcode (was dispatched to a method; see Deprecations)
829 + ".pragma n_operators" is deprecated
830 + old PASM register syntax (without "$") is deprecated
831 + bare (unquoted) method names are deprecated
832 + "#line" will be replaced with ".line"
833 + ".HLL_map" syntax will change
834 + ".loadlib" is now separate from ".HLL"
835 + mmdvtregister and mmdvtablefind opcodes are deprecated
836 + removed getfd, getclass opcodes
837 + removed IMCC syntax that treated some methods as builtins
838 + removed numeric get_attr and set_attr vtable entries
842 + removed a lot of old information from the FAQ
843 + improved function level documentation
845 + removed the configuration item 'has_gnu_m4'
846 + refactored ICU-detection
849 - improved the Smalltalk implementation
851 - renamed Plumhead to Pipp
852 - support for a lot of builtin functions.
853 - Pipp now uses PHP specific data types.
854 - converted from PCT with TGE to PCT with NQP actions
855 - improvements in the PCT variant by using optok parsing
856 - start of object support
858 - simple assignments work
860 - added a PCT-based implementation of JSON parsing
862 - improved handling of symbols
863 - added support for block handling
864 - added support for globals
868 - updated Range implementation
870 - added generic type declarations (::T)
871 - added runtime mixing of roles with 'does' and 'but'
872 - fixed handling of implicit lexicals ($_, $!, and $/)
873 - fixed implicit method calls on $_
874 - improved complex math builtins, added Complex
875 - moved many builtins to class Any
876 - declaration of lists of variables now work
877 - improved test infrastructure
878 - 910 additional passing spec tests since last release
879 - more convergence with STD.pm grammar
880 - added named 0-ary parsing and ops
883 - allowed subroutine and method names to be a PAST tree that produces the name
884 - Improved lexical handling
886 + pbc_disassemble renamed from disassemble
888 + allowed .macro_const in PIR
889 + added the flag :lexid(...) for subroutines
890 + made multiple dispatch work for sub types
891 + fixed garbage collection bug related to the metadata attached to a PMC_EXT structure
892 + added a warning when using deprecated opcodes
893 + simplified the stacks implementation
895 + improved closure and lexical support
896 + improved IMCC register allocator
897 + added cache for all runtime-constant strings, reducing memory usage
899 + improved OpenGL/GLU/GLUT bindings
900 + added a standard profile for Perl::Critic coding standard testing
901 + added support for smoke testing with Smolder
902 + enabled use of Test::Harness 3.0 if available, but don't require it for 'make test'
903 + added the executable 'parrot_config' to query Parrot configuration
907 + updated pdd09_gc.pod
910 - dramatically improved parsing speed
911 - added support for defining and instantiating classes
912 - started fleshing out the builtin class hierarchy
913 - added support for hashes and arrays
914 + Chitchat: added the start of a smalltalk compiler
915 + Pheme: updated to match PGE changes
916 + Pynie: return statement, other minor updates
918 - added working list and hash contexts
919 - added 'return' statements
920 - added => pair constructor
921 - added ?? !! ternary
922 - added Range, range operators, Complex
923 - added common List, Hash methods
924 - refactored base classes
925 - added Mutable, Perl6Scalar classes
926 - added type-checking, is readonly/rw/copy for parameters
927 - added make localtest, docs/spectest-progress.csv
929 + Squaak: implement return statement
930 + Tcl: updated control flow exceptions to use new builtin types
932 + All tools converted to P6object metamodel
934 - <?foo> is now a zero-width match
935 - reduced backtracking to improve parsing speed
937 - added "return" PAST.op node type for subroutine returns
938 - added "keyed_int" scoping to PAST::Var
939 - fixed calls to closures
940 - automatically transcode 7-bit unicode to ascii for faster processing
941 + NQP: added "return" statement, ?? !! ternary operator
943 + expanded step gen::opengl
945 + updated function and macro names to match pdd09_gc.pod
947 + add ".namespace []" as alternative to ".namespace"
948 + "make codetest" target runs standard coding tests
950 + added P6object class for Perl 6 interfaces to objects in Parrot
951 + ported OpenGL/GLU/GLUT bindings to Win32, BSD, and more Mac OS X variants
952 + generate OpenGL/GLU/GLUT bindings by parsing system headers
953 + new OpenGL example shapes.pir, covering basic OpenGL 1.1 / GLUT 3 APIs
954 + new float4.pir structure-packing benchmark
955 + reduced memory use for variables
956 + improved constant string caching
957 + made code g++ and gcc (with optimizations) safe
958 + the usual collection of bugfixes and optimizations
962 + updated and launched pdd28_strings.pod
963 + updated pdd19_pir.pod
965 + added implementation of Rational PMC.
966 + simplified ops control flow syntax
967 + enabled backtrace on non-glibc platforms too
968 + improved some PIR error reporting
969 + removed user stack opcodes
970 (save, restore, lookback, entrytype, depth, rotate_up)
971 (NOTE: This was scheduled to occur after 0.7.0, moved up to this release)
972 + removed register stack, saveall, and restoreall opcodes
973 + removed various deprecated features and unused code
976 + C99: grammar updated
977 + Cardinal: resurrected, method calls and do blocks work now
978 + Eclectus: use NQP as PAST generating code
980 - added big number library
981 - updated to match PGE changes
982 - added a bytecode disassembler & a Lua 5.1 VM bytecode translator
983 + Pheme: updated to match PGE/PCT changes
985 - use NQP as PAST generating code
986 - use riaxpander for macro expansion
989 - conditional and loop statement modifiers
990 - lots of class, object, role, and method improvements
991 - Str increment and decrement
992 - improved spectest reporting
993 - type checking on assignment
994 - regexes and grammars
998 + Squaak: added to repository
1001 + PGE: updated to match Synopsis 5, deprecated features removed
1003 - improve handling of register types, conversion between registers
1004 - improved error diagnostics
1005 - add 'arity' to for loops
1007 + added step auto::opengl
1008 + added step gen::opengl
1009 + added step gen::call_list
1011 + still more optimizations and performance improvements, especially in GC
1012 + new libraries: OpenGL/GLU/GLUT bindings (small subset working)
1013 + new dump_pbc.pl utility: PBC disassembly/source code weaver
1014 + improved C++ compiler support
1015 + optimized builds work again
1020 + drafted pdd29_compiler_tools.pod
1021 + updated pdd28_character_sets.pod draft
1022 + updated pdd19_pir.pod draft
1024 + c99: added independent C pre-processor
1025 + HQ9+: reimplemented with PCT
1027 . reimplementation with PCT, using PAST and POST
1028 . behavior aligned wih 5.1.3
1030 . implemented basic I/O, including '$*IN', '$*OUT', '$*ERR', 'prefix:='
1031 . implemented simple typing and runtime type checking
1032 . added basic multi-method dispatch
1033 . expanded named argument handling, including Pair and colonpairs
1034 . added 'Whatever' and 'Capture' classes
1035 . implemented 'handles' trait verb
1036 . added 'loop' statement
1037 . implemented 'given', 'when', 'for', 'while', 'until' statement modifiers
1038 . implemented Hash methods '.keys' and '.values'
1039 . fixed bug to get '.WHAT' working correctly
1040 . initial implementation of 'eval'
1043 . created a bootstrapped build, see 'make boot'
1044 . added 'infix:<', 'infix:<=', 'infix:>', 'infix:>=' relational operators
1045 . added 'postfix:++', 'postfix:--' operators
1047 . added methods specifying default behaviors in PAST, reducing repeated code
1048 . improved symbol table lookup
1050 . removed deprecated code including: P6Regex, P6Grammar, PAST-pm
1052 + notable speedups during compilation and execution of parrot and HLLs
1053 + pdb (the parrot debugger) can now catch parrot exceptions
1054 + better detection of glibc and gettext during configuration
1055 + various bugfixes, code cleanups, deprecations, and coding standard fixes
1060 + launched pdd18_security.pod
1061 + updated pdd17_pmc.pod
1062 + launching draft of pdd28_character_sets.pod
1064 + cleanup of IMCC documentation
1066 + add step auto::gettext
1067 + add step auto::crypto
1071 . Phase out P6Regex in favor of Perl6Regex
1073 '.local Array my_arr' is illegal now
1075 + C99: reimplementation with PCT
1078 . add support for functions with params
1079 . add math functions
1082 . first cut at smart matching
1083 . indirect method calls
1085 . added methods 'grep' and 'first'
1086 . implement auto{increment,decrement}
1087 . initial implementation of 'perl6doc'
1090 . add base64 library
1091 + Cardinal: basic support for functions with parameters
1092 + Pheme: various updates
1093 + Ecmascript: various updates
1094 + Tcl: now targeting tcl 8.5.1, no more expected failures in test suite.
1095 (No, this doesn't mean everything's implemented. =-)
1096 + Eclectus: various updates
1097 + WMLScript: various updates
1100 + Add library YAML::Dumper
1101 + Add the MD2, MD4, MD5, RIPEMD160, SHA & SHA1 PMC, as a wrapper
1104 + various bugfixes, code cleanups and coding standard fixes
1106 + remove external Perl 5 modules from the Parrot distribution
1110 + PDD09 (garbage collection) - approved
1111 + PDD28 (character sets) - draft started
1112 + added function documentation to some core functions
1113 + PCT beginners guide, optable guide and PAST nodes guide, bug fixes
1115 + IMCC: plugged various memory leaks and other cleanups
1117 . add "attribute" as a scope variant to PAST::Var nodes
1118 . add 'shift' and 'pop' methods to PAST:: nodes
1119 + NQP: add '=:=' op, tests for scalar and list contextualizers, \x escapes
1121 + APL: reimplementation with PCT
1122 + Cardinal (Ruby): reimplemention with PCT
1123 + Ecmascript: reimplementation with PCT
1124 + lolcode: improved expression parsing, ifthen, IT, YARN
1126 . aligned with Lua official release 5.1.3.
1127 . added initial PCT-based implementation.
1128 + Punie (Perl 1): refactor to use standard PCT-based filenames
1129 + Pynie (Python): add functions
1131 . rebranded, formerly known as 'perl6'
1132 . passes many more official Perl 6 Specification tests
1133 . added 'perl6doc' utility
1134 . oo including meta?classes, objects, methods, attributes, role composition
1135 . match variables, while/until statements, traits
1136 . many new methods for Str, List, Hash, Junction
1139 + PCCINVOKE syntax for named arguments using []; use () instead.
1140 + see DEPRECATED.pod for details
1142 + pbc_to_exe refactored for code reduction, portability, and maintainability
1144 + #line directives added to generated JIT files, improving debugging
1145 + consting, attribute marking, refactoring, warnings cleanup
1149 + PDD27 (multiple dispatch) - debut of new design
1150 + Numerous small updates to glossary.pod, etc
1152 + NQP: optional, named, and named/required parameters
1154 + PAST: "defined-or"
1156 + New mk_language_shell.pl script creates language stubs
1159 + Eclectus: start with support for local variables and procedures,
1160 use SXML as intermediate representation
1161 + Perl 6: list builtins, compiler directives, command-line options, etc.
1162 + "make perl6" now builds a Perl 6 executable
1163 + punie: more builtins, control structures, code refactoring
1164 + pynie: builtin stubs, more tests
1166 + New "pbc_to_exe" utility turns bytecode to executables
1167 + New set_outer method for subs
1168 + Further configuration refactoring for testability
1169 + All functions now completely headerized
1170 + Concurrency: interpreter schedulers
1172 + DYNSELF (changes to SELF; SELF to STATICSELF)
1173 + METHOD (replaced by renaming PCCMETHOD)
1174 + pmcinfo op (superseded by 'inspect')
1175 + get_attr, set_attr, and 8 other vtable methods
1176 + See DEPRECATED.pod for details
1179 + Minor speed enhancements with UTF-8 string handling
1181 + consting, attribute marking, warnings cleanup, memory leaks plugged ...
1185 + PDD19 (PIR) - reflect state on the ground; incorporate old IMCC docs
1186 + PDD25 (Concurrency) - launch out of draft
1187 + Improve documentation of deprecated parrot features.
1189 + PCT: Parrot Compiler Toolkit redesigned and updated
1190 + NQP: major updates, including support for namespaces,
1191 module/class declarations, methods
1192 + IMCC: remove .sym as alias for .local. Remove .pcc_
1193 prefix for calling directives (.pcc_begin became .begin_call).
1194 + PIRC: creates an AST during the parse.
1195 + PGE: more updates to match S05 syntax.
1197 + perl6: re-implemented using PCT and NQP, new object subsystem
1198 + abc: re-implemented using PCT and NQP
1199 + eclectus: initial implementation
1200 + plumhead: add PCT variant
1201 + punie: re-implemented using PCT and NQP, extended to handle subroutines
1202 Happy 20th Birthday, Perl!
1203 + pynie: re-implemented using PCT and NQP
1204 + PIR: start conversion to NQP (under construction)
1206 + new opcodes: 'die', 'addhandler', 'copy'
1207 + Initial implementation of Concurrency PDD
1208 + Add 'arity' method to Sub and NCI PMCs
1211 + consting, attribute marking, warnings cleanup, memory leaks, GC...
1212 + dead code removal (includes some defunct languages)
1216 + PDD15 (OO) branch merged with trunk; this release contains a working,
1217 tested implementation of the latest OO model
1218 + Added pop_eh/push_eh_p/count_eh opcodes
1219 + Add --runcore command line option
1220 + Add gcdebug runcore to help track down GC bugs
1221 + minor improvements to IA-32 JIT
1223 + PDD19 (PIR): updates to macros, .pcc* directives
1224 + PDD25 (Concurrency): updated
1225 + PDD26 (AST): draft approved
1226 + PDD23 (Exceptions): draft approved
1227 + Copyright cleanups
1228 - Languages/Compilers
1229 + languages/APL: minor updates, PDD15 conformance
1230 + languages/dotnet: minor updates
1231 + languages/lua: minor updates, PDD15 conformance
1232 + languages/lisp: minor updates
1233 + languages/perl6: minor updates, PDD15 conformance
1234 + languages/plumhead: minor updates
1235 + languages/punie: minor updates, PDD15 conformance
1236 + languages/nqp: minor updates
1237 + languages/scheme: many updates, PDD15 conformance, improved tests, use
1238 PMCs instead of primitive registers to represent values
1239 + languages/tcl: bugfixes, PDD15 conformance
1240 + languages/WMLScript: minor updates
1241 + compilers/pirc: updates from PDD19, PDD06
1242 + compilers/pct: minor updates, PDD15 conformance
1243 + compilers/pge: PDD15 conformance
1244 + compilers/tge: PDD15 conformance
1246 + Improve test coverage
1247 + Improve reporting when a step fails; allow abort on failure
1249 + More coding standard conformance, tests, cleanup, speedups,
1251 + Bug cleanup, esp. GC bugs
1252 + Eliminate .imc extension (use .pir)
1253 + Simplify some core config steps to not allow interactive prompting
1259 + Bug fixes (including Coverity IDs 20, 22, 30, 119-122, 124-126, 129-131)
1260 Also various GC, memory, and segfault issues
1261 + Fix & reenable CGP core
1262 + Parrot's -r flag now works again (compile to and execute bytecode)
1263 + Updates to pmc2c & PIR syntaxes
1265 + Minor performance improvements, especially in PGE
1267 + PDD02 "Vtables" - superceded by PDD17
1268 + PDD06 "PASM" - minor updates
1269 + PDD17 "PMC" - add VTABLE syntax, update core PMC struct, restore UnionVal
1270 + PDD19 "PIR" - early review started
1271 + PDD21 "Namespaces" - cleanup
1272 + PDD24 "Events" - draft approved
1273 + PDD25 "Concurrency" - minor updates
1274 + PDD26 "AST" - draft version begun
1275 + PIR tutorials updated
1276 - Languages/Compilers
1277 + Make scheme work with the current calling conventions, other major work.
1278 + Updates to m4, lua, compilers/pirc, languages/PIR, dotnet, tcl
1280 + make -j functional again
1281 + Code cleanup (refactoring, optimizations)
1285 + Performed code review on every PMC
1286 + Modified PMC code generation to use Storable, reducing compile times
1287 + Added a makefile target to generate test coverage data of C sources
1289 + NQP: added lists, for loops, operators, comparison and multiplicative operators
1290 + Announced Kea-CL, Kea Common Lisp, an ANSI Common Lisp implementation
1291 The repository is available at https://rgrjr.dyndns.org/svn/kea-cl/trunk/
1293 + PDD17 "PMCs" - draft approved, the design is complete
1294 + Added more PIR tutorials, see examples/tutorial/00_README.pod
1296 + Many bugfixes, enhancements, documentation, and coding standard updates
1297 + Deprecated PMC constants and other crufty syntax, see DEPRECATED.pod
1298 + Improved icc compiler compatibility for error line reporting
1302 + Lots of code review, many bugs fixed
1303 + Many more code cleanups and compiler warning levels
1304 + Started a new jit engine for 64-bit processors
1305 + Refactored configure process, with tests and new diagnostic options
1306 + Added new CodeString PMC for dynamic generation of PIR code
1307 + More pdd15 support for object metamodel.
1309 + Added NQP ("Not Quite Perl"), a very lightweight Perl 6-like language
1310 + Significant improvements and refactors to PCT (Parrot Compiler Toolkit)
1311 + perl6 passes more spec tests
1312 + Lua works now with a PGE/TGE/PAST-pm based compiler, lives in one pbc,
1313 and the interpreter has same behavior as original.
1315 + Added a committers' HOWTO
1316 + More PIR tutorial examples
1320 - Now, with Seat Belts!
1321 + added makefile targets for Sun lint, BSD lint, and splint
1322 + corrected many errors picked up by these tools
1323 + decorated source code with compiler hints, assertions, and attribute macros
1324 + automated creation of function declarations to prevent common errors
1325 + increased compiler warnings levels
1326 + converted more exceptions to a recoverable form
1328 + updated Lisp, Lua, Perl 6, tcl, regex, Scheme ("Pheme")
1329 + Perl 6 now fetches selected tests from pugs, and even passes some
1330 + PGE modified to handle {*} action subs for top-down and bottom-up parsers,
1331 and to allow grammar subclassing
1332 + HLLCompiler now has better exception, eval, and exit support
1333 + Introduced PCT, a refactor of HLLCompiler and PAST-pm
1335 + PDD15 "Objects" - details added to 'new' and 'getattribute' opcodes
1336 + PDD17 "PMCs" - notes added on instantiation and dynamic extention in PIR
1338 + added Parrot-related text from "Perl 6 and Parrot Essentials" book,
1339 tutorial examples from "Learning PIR" talk, and PDD15 metamodel diagrams
1341 + reduced memory footprint when using named registers
1342 + implemented overridding of vtable methods by PDD15 classes
1343 + improved PDD15 support for 'new', 'instantiate', and others
1344 + added makefile targets to ease core and HLL makefile regeneration
1345 + updated parrot dubugger, "pdb", to allow loading of commands from file
1347 + many bugfixes, enhancements, documentation, and coding standard updates
1351 + Updated Lisp, Lua, PHP ("Plumhead"), Python ("Pynie"), ABC,
1352 WMLScript, and Tcl ("ParTcl").
1353 + Perl 6 passes all of the sanity tests.
1354 + PGE supports latest Perl 6 grammar syntax. Perl 6, Python
1355 ("Pynie"), and ABC parsers updated to match.
1356 + Updated PHP ("Plumhead") to Antlr 3.0.
1357 + Lua added the beginnings of a PGE/TGE based compiler (not yet
1358 replacing the Perl/Yapp compiler).
1359 + Lisp updated for current features, added a test suite.
1360 - Core Implementation:
1361 + Filled in features and backward compatibility for PDD 15 objects.
1362 New object metamodel passes 85% of old test suite.
1363 + GCC API symbols are visible externally only when explicitly exported.
1364 + Added generated GCC compiler attributes to increase warnings, and
1365 cleaned up resulting warnings.
1366 + Code cleanup efforts and fixed memory leaks by the cage cleaners,
1367 resulting in notable speed increases.
1369 + Updated Parrot distribution to Artistic License 2.0, from dual
1370 Artistic 1/GPL license.
1371 + SDL examples brought up-to-date with current features.
1375 + even more refactorings and improvements in configuration system
1376 + improved tests and documentation for configuration system
1378 + Updated abc, PHP ("Plumhead"), Lua, Tcl
1381 + new PMC PDD draft partially completed
1383 + continued implementation of PDD 15 (Objects)
1384 + minor garbage collector and memory management improvements
1385 + several memory leaks resolved
1386 + extended support for compilers other than GCC
1387 + improved C++ compiler compatibility
1388 + enhanced support for Solaris, non-MSVC Win32, and other platforms
1393 + IMCC: added documentation for C-based Parrot Calling Conventions,
1394 refactorings and bug fixes
1395 + PGE: new perl6regex front end reflecting recent S05 syntax changes
1396 + PIRC: new prototype PIR parser
1398 + Updated Lua, PHP ("Plumhead"), BASIC, pynie
1399 + Lua implements environment
1401 + PDD15 "Objects" - details added, and draft approved
1403 + Added guidelines for PMC documentation
1405 + PDD15 implementation is largely complete, including role-based composition,
1406 introspection, and C3 method resolution order
1407 + new Exporter PMC for importing globals between namespaces
1408 + new string utilities for radix conversion
1409 + PCCINVOKE and Parrot_PCCINVOKE allow calling using the full Parrot Calling
1410 Conventions from PMCs and C code respectively
1412 + Refactorings and improvements in test coverage for 'Configure.pl'
1414 + many bugfixes, enhancements, and code cleanup
1415 + added example subversion config file
1416 + extended support for gcc, icc, and other compilers
1417 + extended support for Solaris and other platforms
1423 + IMCC: Parrot calling conventions now available between two C PMCs (PMINVOKE)
1424 + PGE: Match object improvements
1425 + smop: added Attribute and Class PMCs
1426 + HLLCompiler: improvements for interactive mode
1428 + extended binding to a list of variables
1430 + Updated Lua, PHP ("Plumhead"), Tcl ("ParTcl"), Ruby ("Cardinal")
1431 + Update PIR, regex, Zcode
1432 + New language: Pynie - a Python compiler for Parrot
1433 + Lua implements require and many other ops, improved regex support
1436 + PDD01 "Overview" - updated architecture and platform information
1437 + PDD15 "Objects" - details on roles, objects, and classes added
1438 + PDD22 "I/O" - added async ops and Status PMC details
1440 + Added guides for Metacommitter, Relase Manager, and Cage Cleaner roles
1442 + Object, Class, Role, and Attribute PMC implementation has begun
1443 + Perl 5 module "Parrot::Embed" now compiles and links on all platforms
1445 + Major improvements in test coverage for 'ops2c.pl'
1447 + New utility: Crow, a template processor
1448 + New library module: Config/JSON for reading/writing JSON files
1449 + many bugfixes, enhancements, and coding standard updates, code cleanup
1454 + IMCC: Parrot calling conventions now available in C PMCs, allowing
1455 named, optional, slurpy, and flat parameter passing
1456 + PGE: extended support for Perl 5 Regexes
1457 + smop: prototype object model implementation
1458 + hllcompiler: refactored to run a configurable set of compilation stages
1460 + redesigned assign/binding to support Perl 6 binding semantics
1462 + Updated Lua, PHP ("Plumhead"), Tcl ("ParTcl"), perl6, perl5
1463 + New language: PIR - a PGE-based implementation of Parrot PIR
1464 + perl6 now supports binding (':=') and 'join'
1465 + lua generates tail calls, and supports its own regex flavor (PGE-based)
1466 + Pheme still works, huzzah!
1468 + PDD21 "Objects" - rewritten
1469 + PDD22 "I/O" - updated and 'TODO' tests added
1471 + Interface stability classification standards approved
1472 + Roles and Responsibilities documented approved
1473 + Official 'drafts' directory created (was 'clip')
1475 + More NameSpace and OS PMC methods implemented
1476 + Parrot executable fullname and basename now available in PIR/PASM code
1477 + new 'chomp' library function
1479 + Major improvements in test coverage for 'ops2pm.pl'
1481 + many bugfixes, enhancements, and coding standard updates
1482 + extended support for Sun Workshop Compilers
1483 + Parrot now builds on PocketPC platform
1488 + HLLCompiler: added tracing options, modified api
1489 + PGE & TGE bugfixes and updates
1491 + added global and lexical variable support
1492 + added looping constructs, arrays, hashes
1494 + Updated PHP ("Plumhead"), Tcl ("ParTcl"),
1495 forth, perl6, lua, abc, APL, WMLScript, punie
1496 + ParTcl is passing > 24.9% of Tcl cvs-latest test suite
1497 + perl6 now supports hashes, arrays, method calls, arity-based
1498 multisubs, quoted terms, ranges (non-lazy), try blocks, $!
1500 + PDD01 "Overview" - updated
1501 + PDD22 "I/O" - rewritten and approved
1503 + Converted Perl 5 Regex tests to PIR, with notable speedup
1504 + Added tests for opcodes, compilers, languages, and coding standards
1506 + Major improvements in test coverage for 'pmc2c.pl'
1508 + many bugfixes, enhancements, and coding standard updates
1509 + extended support for non-core platforms including Cygwin, Tru64
1513 - New languages: PHP ("Plumhead"), Forth
1514 - Updated languages: Ruby ("Cardinal"), Tcl, Lua
1515 - Remove old Python implementation from Parrot repository; the new Python
1516 language code is hosted at http://pirate.tangentcode.com
1518 + PGE updated with more expressions, latest changes to S05
1519 + new Perl 6 grammar compiler
1521 + Perl 5 module "Parrot::Embed" allows easy embedding of a Parrot
1522 runtime into a Perl 5 program
1524 + new :init pragma for subs that must run before the main function
1525 + new :vtable pragma to identify subs that override PMC vtable methods,
1526 eliminating the need for special subroutine names
1527 + PIR parser/compiler does not stop on first syntax error
1528 + Vanilla register allocator ("register alligator") greatly improves
1529 performance compiling large functions
1530 + Eliminated limit on number of PIR macros
1532 + hash lookups return null instead of None for missing keys
1534 + PDD13 "Bytecode files: format and manipulation" - new
1535 + PDD10 "Embedding" - new
1536 + PDD25 "Concurrency" - rewritten
1537 + PDD15 "Objects" - new section on redesign requirements
1538 + PDD07 "Coding standards" - significant updates and automated tests
1540 + Many many more new tests
1542 + autoconf compatible install options
1544 + Namespace refinements
1545 + Coroutine improvements
1546 + An impressive swarm of other bugfixes and enhancements
1550 - New languages: Ruby ("Cardinal"), Javascript ("ecmascript")
1551 - Updated languages: Tcl, dotnet, bc, Pheme, Punie, WMLScript
1552 - Updated compilers: PGE, TGE
1554 + ".loadlib" directive expresses dependencies
1555 + ".namespace" with no parameter goes to HLL root
1556 + lexer is reentrant (reentrant grammar in progress)
1557 - Namespace improvements:
1558 + new suite of opcodes to access namespaces and globals
1559 ("find_global" and "store_global" will be phased out)
1560 + namespace '' no longer means HLL root
1561 - Design document updates:
1562 namespaces (pdd23), basic types (pdd17), embedding
1563 - Updated tool requirements for developers:
1564 flex 2.5.33, bison 2.1, perl 5.6.1
1565 - New to-do list for people new to Parrot:
1567 - The usual plethora of bugfixes and enhancements
1571 - unicode subroutine names
1572 - hierarchical class names finished including MMD support
1573 - new dotnet CLI to PIR translator
1574 - improved TGE code and compiler
1575 - APL: vector handling
1576 - new STM branch in the svn repository
1577 - the usual bugfixes and enhancements
1581 - hierarchical class names
1584 - understands simple vector ops, strings
1585 - demonstrates use of Unicode in Parrot
1586 - pgc, a compiler for rules and operator precedence parsers
1587 - Major redesign and improvements for PGE
1588 - compilers understand named parameter options
1589 - :ratchet option implemented to support non-backtracking quantifiers
1590 - TGE (tree grammar engine) for tree transformations
1591 - tgc, tree grammar compiler
1593 - support for many operators, lexical scalars, regex matches
1594 - new pheme (Parrot scheme) compiler
1598 - namespaces partially implemented
1599 - rulec, Perl 6 rule compiler
1600 - PGE improvements including return values for closure
1601 - parts of a Perl 6 parser based on PGE
1602 - complex trigonometric methods
1603 - type of Sub PMC is now overridable by HLL
1605 - many bug fixes and improvements
1609 - improved PPC and x86 JIT support including JIT compilation
1610 of very simple PASM/PIR subroutines
1611 - preliminary libreadline support
1612 - better trace and debug features
1614 - META.yml to support proper indexing on CPAN
1615 - new opcode: hcf (in "my_ops" in dynamic op library)
1616 - new File pmc for file specific ops (is_dir, is_file, copy, rename...)
1617 - named arguments and parameters (both :named("") and => syntaxes)
1618 - ongoing config improvements
1619 - tons of bug fixes and other small improvements - too much to list all
1623 - Installation: 'make install' is using standard locations now
1624 (/usr/local is the default --prefix)
1625 - Produce static and shared libraries on some systems
1626 - Configure system rearragement
1627 - OS pmc started (mkdir,cd,cwd,rm,umask,stat)
1629 - Test files are now testable with 'prove'
1630 - Smoke (and smokej) outputs progress
1631 - PIR supports: I = A < B (>,<=,>=,==,!=)
1632 - Add support for octal number constants
1634 - almost finish [string]; start [file]
1635 - add build tool for generating inline'd tcl builtins from templates.
1636 - Jako updates: NCI, subroutines, global variables and constants all work.
1641 - New lexical handling and closure support including better
1642 introspection for caller and outer
1643 - PGE (Parrot Grammar Engine) provides now compilers for P6Rule,
1644 P6Grammar, P5Regexp, and Glob
1645 - ca. 1000 new tests including 800 for Perl5 regexp
1646 - Improved unicode charset and encoding support
1647 - Calling conventions for exception handlers
1648 - Punie (Perl 1) uses TGE (Tree Grammar Engine) to convert from
1649 PGE match objects to AST via two steps of tree transformation grammars
1650 - New languages: amber and lua
1651 - The usual code fixes, cleanup, and improvements, including an overhaul
1652 of the config and test framework
1656 - Variable sized register frames are finished. Each subroutine gets
1657 the amount of registers that it actually needs. No more spilling.
1658 - Vastly improved PGE (Parrot Grammar Engine) including shift-reduce,
1659 precedence-based expression parser and support for matching of
1660 bracketed text delimited by e.g. ()[]{}'"
1661 - uniccode character classification (is_upper ...)
1662 - support for heredoc syntax in assembler
1663 - improved examples, basic JSON support
1664 - debian packaging support
1665 - the usual improvements, bug fixes, and cleanup
1666 - test count exceeds 3000
1670 - New calling conventions implemented: see PDD03 for details
1671 - Merge multiple Parrot bytecode (PBC) files into a singe PBC file
1672 - 'make smoke' target going beta
1673 - bc now supports if statements, comparison ops, prefix inc/dec
1674 - ParTcl adds [lassign], [switch] (partially); [expr] converted to a compiler
1675 - Many exciting doc updates, tests, and bugfixes, too numerous to mention
1679 - Dynamic classes now compile on Windows (including ParTcl)
1680 - New Super PMC allows easy access to superclass methods
1681 - Implement C3 method resolution order (just like Perl 6 & Python)
1682 - ParTcl has new PIR-based parser and passes more Tcl tests
1683 - added character class support in Globs to PGE
1684 - added language implementations of unlambda, Lazy-k
1685 - many bugfixes, including GC and memory leaks
1686 - the new calling scheme continued to evolve in branches/leo-ctx5
1690 - new call scheme: docs/pdds/pdd03_calling_conventions.pod
1691 - partial implementation of the new calling conventions
1692 PASM only, don't mix PIR foo() call syntax with the new scheme
1693 - grammar and rule support in PGE - the Parrot Grammar Engine
1694 - TCL passes >10% of the tcl test suite
1695 - the usual bugfixes and improvements
1699 - better HLL support (short names for object attributes, and
1700 .HLL and n_operators pragmas)
1701 - string encoding and charset can now be set independently
1702 - experimental mmap IO layer for slurping files
1703 - distinct debug and trace flag settings
1704 - glob support in PGE
1705 - new character classification opcodes and interfaces
1709 - parrot repository is now under subversion
1710 - MMD (Multi Method Dispatch) enhanced
1711 - new unary and infix opcodes that return new result PMCs
1712 - dynamic scalar PMCs inherit now almost all from Parrot core PMCs
1713 - more unification of PMCs and ParrotObjects
1714 - tailcalls for functions and methods
1715 - PGE (Parrot Grammar Engine) reworked
1716 - Pugs creates Parrot code and Pugs is a registered compiler now
1717 - new languages/lisp
1718 - the usual bug fixes and improvements
1722 - New string handling code. Strings now have charset and encoding
1723 - Parts of a generation garbage collector
1724 - Better Python code, separated in dynclasses
1725 - Parrot Grammar Engine
1726 - Improved test coverage and documentation
1730 Parrot 0.1.1 is an intermediate release with tons of updates and fixes.
1731 - Python support: Parrot runs 4/7 of the pie-thon test suite
1732 - Better OS support: more platforms, compiler, OS functions
1733 - Improved PIR syntax for method calls and <op>= assignment
1734 - Dynamic loading reworked including a "make install" target
1735 - MMD - multi method dispatch for binary vtable methods
1736 - Library improvement and cleanup
1737 - BigInt, Complex, *Array, Slice, Enumerate, None PMC classes
1738 - IA64 and hppa JIT support
1739 - Tons of fixes, improvements, new tests, and documentation updates.
1740 A lot is unfinished and keeps changing. Nethertheless Parrot is stable
1741 and usable at the surface, while internals are moving.
1744 - "Ladies and gentlemen, I give you... objects!"
1745 - Huge documentation overhaul
1746 - More supported platforms, s. PLATFORMS
1747 - Basic thread support for pthread based architectures
1748 - Basic event handling for timers and signals including:
1749 - PASM callbacks for NCI (native C) functions.
1750 - Improved platform configuration
1751 - COW stacks now working, stacks code redone
1752 - Structure handling vastly improved
1753 - Random PMC and rand primitives
1754 - Better subroutine call syntax in PIR
1755 - Make PIR subroutines compliant with pdd03
1756 - Improved profiling (DOD, GC timings)
1757 - Hash code improvements, incl. random key order support
1758 - Experimental freeze/thaw code for some PMC types
1759 - IO improvements for buffered layer and Win32
1761 - String bitwise vtables
1763 - Support for JIT, where malloced memory isn't executable
1764 - Priority DOD scheme for objects that need timely destruction
1765 - Improved byte code loading (e.g. onLoad functions)
1766 - Language updates: forth, Perl 6/P6C, m4
1767 - Libraries: Getopt_Long, SDL, Dumper, Sort
1769 - Unified imcc and parrot test handling
1770 - Many new tests (make test reports 1386 tests)
1771 - Numerous bug fixes
1774 - The Big Move: Parrot source and build files rearranged into sub dirs
1775 - Build imcc as parrot
1776 - Objects more finished
1777 - Delegate vtable methods to byte code
1778 - Binary multi-method dispatching
1779 - Isa and does methods for PMCs
1780 - Call byte code from C
1781 - Start of extension interface
1782 - Experimental struct handling
1783 - Catch access to NULL PMCs
1784 - Experimental network socket interface code and opcodes
1785 - IO fixes and improvements
1786 - Dynamic opcode libraries
1787 - Fix-assigned opcode numbers
1788 - Argument flattening for function calls
1789 - More native call interface (NCI) signatures
1790 - Ncurses, postgres, and pcre interface libraries
1791 - Forth language is vastly improved
1792 - BSD and Win32 build improvements
1793 - Many new tests and fixes
1796 - This number intentionally left blank
1800 - Dynamic PMC registration
1801 - Trial exception system
1802 - Beginnings of object system
1805 - I/O system improvements
1807 - Documentation for basic PMC types
1808 - IMCC support of Parrot Calling Conventions
1809 - Runtime loading of chartypes (and other string improvements)
1810 - Conditional breakpoints
1811 - Dramatically accelerated sweeps for finalizable objects
1812 - Small PMCs (PMCs split into core and extensions)
1813 - Loadable bytecode packfiles
1815 - Sub variants that deal with the stack correctly
1816 - Switched runops core
1817 - Line numbers in warnings
1818 - Environment access
1819 - Many documentation cleanups
1820 - Conversion to CPS style!
1821 - BASIC debugger and many other wacky features
1822 - Filename, line number parsing support in IMCC
1827 - some more benchmarking
1829 - optimized math ops
1830 - intersegment branches
1831 - more complete use of PObjs
1832 - beefed up packfiles
1833 - sub/continuation/coroutine fixes
1834 - better NCI (native calling interface)
1835 - many imcc improvements
1840 - Native function calling interface (Dan)
1841 - Stack/list aggregate rewrite (Leo)
1842 - Scratchpads (Jonathan Sillito)
1843 - Preliminary DotGNU support -- type conversion ops (Gopal V + Leo)
1844 - Buffer/PMC unification (Leo)
1845 - stabs debugging support for JIT (Leo)
1846 - Jako overhaul (Gregor)
1847 - Optional Lea allocator (Leo)
1848 - Parrot sprintf (Brent)
1850 - PMC Properties (Dan)
1851 - Various JIT improvements (D. Grunblatt + Leo)
1852 - Extensible packfiles (Juergen)
1853 - Restructured PMC hierarchy (Leo)
1854 - Real Scheme (Juergen)
1858 - Several new grammars and a BNF -> perl5 and perl6 converter (Jeff)
1859 - Working Perl 6 REs (Sean)
1860 - Keyed Access (Tom Hughes et al)
1861 - New PMCs (Alberto et al)
1862 - Better Documentation
1864 - GC acceleration (Mike Lambert)
1865 - Lexical scope (Jonathan Sillito)
1871 - Perl 6 Grammar and Compiler (Sean)
1872 - Subroutines, coroutines, and continuations (Melvin)
1873 - GC improvements (Peter Gibbs, Mike Lambert)
1874 - Global variables (Melvin)
1875 - Intermediate bytecode compiler (Melvin, Angel)
1876 - And much, much more.
1880 - New assembler that support keyed types (Jeff)
1881 - New macro layer, allowing constants (Jeff)
1882 - New Configure.pl (Brent)
1883 - Changes to bytecode format, endian issues resolved (Melvin)
1884 - GC improvements and bug fixes (Peter Gibbs, Mike Lambert)
1885 - JIT compiler rewrite (Jason and Daniel)
1886 - Parrot assembler in Parrot (Daniel)
1887 - Parrot debugger (Daniel)
1888 - BASIC polished, Eliza.bas is new (Clint)
1889 - Cola compiler committed and working, with limited OOP (Melvin)
1890 - Keyed aggregates (Steve Fink)
1891 - Global ops (Melvin)
1892 - Compile-time speedup (Melvin)
1893 - Much documentation
1895 - Contributed tetris and lzw files
1896 - And many more, from the cast of thousands
1901 - Perl Scalar support in PMCs
1902 - Array and Hash types almost ready for prime-time
1903 - Internal support for keyed types
1904 - EMACS editing mode
1906 - New Language - BASIC
1907 - Regular expression compiler
1909 - Many, many bug fixes, enhancements, and speedups
1913 - Arena-based memory allocation system
1916 - "Predereferencing" mode - ./parrot -P - 22% speedup
1917 - JIT compiler - ./parrot -j
1918 - Parrot now builds warnings-clean on many platforms
1919 - Many more PMC methods implemented
1920 - Regular expression operations
1922 - Basic support for embedding Parrot in other programs
1924 - Added PDDs to distribution
1928 - Added an assembly optimizer
1929 - Improved string encoding/type support
1931 - Source reformatting
1932 - Major refactoring in packfile library
1933 - More Miniperl functionality
1934 - New PMC "clone" operator
1935 - Beginnings of key-based access to PMCs - arrays and hashes
1936 - MOPS comparisons in examples/mops/
1941 - Perl base scalar types implemented
1942 - A new minilanguage, Scheme
1943 - Much improved documentation
1944 - Register stacks pushing and popping
1945 - User stack pushing, popping and rotating
1946 - Jako updates: subroutines, more example programs, optimizations
1947 - test_prog renamed to 'parrot'
1949 - Added features to the assembler: @ for current location, and global
1951 - Build tweaks for VMS
1952 - Bytecode typing clean-ups
1953 - More platforms: OS X, HPUX, OS/2
1954 - The proliferation of runops cores reduced to one fast and one slow one
1955 - Opcode tracing, bounds checking, profiling
1956 - Vastly improved string support, with separation of encoding and
1959 - Multiple interpreter creation support - the beginnings of threading
1960 - Much better resource handling - the beginnings of GC
1964 - Parrot now works on all core platforms
1965 - A large number of tests, in the standard Perl testing framework
1966 - A new minilanguage (Jako) which compiles to Parrot assembly
1967 - Documentation about the assembly language (docs/parrot_assembly.pod)
1969 - Separate modules for assembly (Parrot::Assemble) and bytecode
1970 manipulation (Parrot::PackFile::*, packfile.c)
1971 - Assembler completely rewritten
1972 - Better operand-type guessing in the assembler
1973 - Assembler support for '\n' etc. in string constants
1974 - Code reformatted to match the coding standards
1975 - New ops for register-constant INTEGER comparisons
1976 - Macro expansion in the assembler
1977 - IVs and NVs renamed to more friendly INTVAL and NUMVAL
1978 - Hard-coded pack("") formats removed
1979 - Better handling of floating-point numbers in assembler
1980 - Moved floats to constant table (fixing many alignment issues)