6 + IMCC: added documentation for C-based Parrot Calling Conventions,
7 refactorings and bug fixes
8 + PGE: new perl6regex front end reflecting recent S05 syntax changes
9 + PIRC: new prototype PIR parser
11 + Updated Lua, PHP ("Plumhead"), BASIC, pynie
12 + Lua implements environment
14 + PDD15 "Objects" - details added, and draft approved
16 + Added guidelines for PMC documentation
18 + PDD15 implementation is largely complete, including role-based composition,
19 introspection, and C3 method resolution order
20 + new Exporter PMC for importing globals between namespaces
21 + new string utilities for radix conversion
22 + PCCINVOKE and Parrot_PCCINVOKE allow calling using the full Parrot Calling
23 Conventions from PMCs and C code respectively
25 + Refactorings and improvements in test coverage for 'Configure.pl'
27 + many bugfixes, enhancements, and code cleanup
28 + added example subversion config file
29 + extended support for gcc, icc, and other compilers
30 + extended support for Solaris and other platforms
36 + IMCC: Parrot calling conventions now available between two C PMCs (PMINVOKE)
37 + PGE: Match object improvements
38 + smop: added Attribute and Class PMCs
39 + HLLCompiler: improvements for interactive mode
41 + extended binding to a list of variables
43 + Updated Lua, PHP ("Plumhead"), Tcl ("ParTcl"), Ruby ("Cardinal")
44 + Update PIR, regex, Zcode
45 + New language: Pynie - a Python compiler for Parrot
46 + Lua implements require and many other ops, improved regex support
49 + PDD01 "Overview" - updated architecture and platform information
50 + PDD15 "Objects" - details on roles, objects, and classes added
51 + PDD22 "I/O" - added async ops and Status PMC details
53 + Added guides for Metacommitter, Relase Manager, and Cage Cleaner roles
55 + Object, Class, Role, and Attribute PMC implementation has begun
56 + Perl 5 module "Parrot::Embed" now compiles and links on all platforms
58 + Major improvements in test coverage for 'ops2c.pl'
60 + New utility: Crow, a template processor
61 + New library module: Config/JSON for reading/writing JSON files
62 + many bugfixes, enhancements, and coding standard updates, code cleanup
67 + IMCC: Parrot calling conventions now available in C PMCs, allowing
68 named, optional, slurpy, and flat parameter passing
69 + PGE: extended support for Perl 5 Regexes
70 + smop: prototype object model implementation
71 + hllcompiler: refactored to run a configurable set of compilation stages
73 + redesigned assign/binding to support Perl 6 binding semantics
75 + Updated Lua, PHP ("Plumhead"), Tcl ("ParTcl"), perl6, perl5
76 + New language: PIR - a PGE-based implementation of Parrot PIR
77 + perl6 now supports binding (':=') and 'join'
78 + lua generates tail calls, and supports its own regex flavor (PGE-based)
79 + Pheme still works, huzzah!
81 + PDD21 "Objects" - rewritten
82 + PDD22 "I/O" - updated and 'TODO' tests added
84 + Interface stability classification standards approved
85 + Roles and Responsibilities documented approved
86 + Official 'drafts' directory created (was 'clip')
88 + More NameSpace and OS PMC methods implemented
89 + Parrot executable fullname and basename now available in PIR/PASM code
90 + new 'chomp' library function
92 + Major improvements in test coverage for 'ops2pm.pl'
94 + many bugfixes, enhancements, and coding standard updates
95 + extended support for Sun Workshop Compilers
96 + Parrot now builds on PocketPC platform
101 + HLLCompiler: added tracing options, modified api
102 + PGE & TGE bugfixes and updates
104 + added global and lexical variable support
105 + added looping constructs, arrays, hashes
107 + Updated PHP ("Plumhead"), Tcl ("ParTcl"),
108 forth, perl6, lua, abc, APL, WMLScript, punie
109 + ParTcl is passing > 24.9% of Tcl cvs-latest test suite
110 + perl6 now supports hashes, arrays, method calls, arity-based
111 multisubs, quoted terms, ranges (non-lazy), try blocks, $!
113 + PDD01 "Overview" - updated
114 + PDD22 "I/O" - rewritten and approved
116 + Converted Perl 5 Regex tests to PIR, with notable speedup
117 + Added tests for opcodes, compilers, languages, and coding standards
119 + Major improvements in test coverage for 'pmc2c.pl'
121 + many bugfixes, enhancements, and coding standard updates
122 + extended support for non-core platforms including Cygwin, Tru64
126 - New languages: PHP ("Plumhead"), Forth
127 - Updated languages: Ruby ("Cardinal"), Tcl, Lua
128 - Remove old Python implementation from Parrot repository; the new Python
129 language code is hosted at http://pirate.tangentcode.com
131 + PGE updated with more expressions, latest changes to S05
132 + new Perl6 grammar compiler
134 + Perl 5 module "Parrot::Embed" allows easy embedding of a Parrot
135 runtime into a Perl 5 program
137 + new :init pragma for subs that must run before the main function
138 + new :vtable pragma to identify subs that override PMC vtable methods,
139 eliminating the need for special subroutine names
140 + PIR parser/compiler does not stop on first syntax error
141 + Vanilla register allocator ("register alligator") greatly improves
142 performance compiling large functions
143 + Eliminated limit on number of PIR macros
145 + hash lookups return null instead of None for missing keys
147 + PDD13 "Bytecode files: format and manipulation" - new
148 + PDD10 "Embedding" - new
149 + PDD25 "Concurrency" - rewritten
150 + PDD15 "Objects" - new section on redesign requirements
151 + PDD07 "Coding standards" - significant updates and automated tests
153 + Many many more new tests
155 + autoconf compatible install options
157 + Namespace refinements
158 + Coroutine improvements
159 + An impressive swarm of other bugfixes and enhancements
163 - New languages: Ruby ("Cardinal"), Javascript ("ecmascript")
164 - Updated languages: Tcl, dotnet, bc, Pheme, Punie, WMLScript
165 - Updated compilers: PGE, TGE
167 + ".loadlib" directive expresses dependencies
168 + ".namespace" with no parameter goes to HLL root
169 + lexer is reentrant (reentrant grammar in progress)
170 - Namespace improvements:
171 + new suite of opcodes to access namespaces and globals
172 ("find_global" and "store_global" will be phased out)
173 + namespace '' no longer means HLL root
174 - Design document updates:
175 namespaces (pdd23), basic types (pdd17), embedding
176 - Updated tool requirements for developers:
177 flex 2.5.33, bison 2.1, perl 5.6.1
178 - New to-do list for people new to Parrot:
180 - The usual plethora of bugfixes and enhancements
184 - unicode subroutine names
185 - hierarchical class names finished including MMD support
186 - new dotnet CLI to PIR translator
187 - improved TGE code and compiler
188 - APL: vector handling
189 - new STM branch in the svn repository
190 - the usual bugfixes and enhancements
194 - hierarchical class names
197 - understands simple vector ops, strings
198 - demonstrates use of Unicode in Parrot
199 - pgc, a compiler for rules and operator precedence parsers
200 - Major redesign and improvements for PGE
201 - compilers understand named parameter options
202 - :ratchet option implemented to support non-backtracking quantifiers
203 - TGE (tree grammar engine) for tree transformations
204 - tgc, tree grammar compiler
206 - support for many operators, lexical scalars, regex matches
207 - new pheme (Parrot scheme) compiler
211 - namespaces partially implemented
212 - rulec, Perl6 rule compiler
213 - PGE improvements including return values for closure
214 - parts of a Perl6 parser based on PGE
215 - complex trigonometric methods
216 - type of Sub PMC is now overridable by HLL
218 - many bug fixes and improvements
222 - improved PPC and x86 JIT support including JIT compilation
223 of very simple PASM/PIR subroutines
224 - preliminary libreadline support
225 - better trace and debug features
227 - META.yml to support proper indexing on CPAN
228 - new opcode: hcf (in "my_ops" in dynamic op library)
229 - new File pmc for file specific ops (is_dir, is_file, copy, rename...)
230 - named arguments and parameters (both :named("") and => syntaxes)
231 - ongoing config improvements
232 - tons of bug fixes and other small improvements - too much to list all
236 - Installation: 'make install' is using standard locations now
237 (/usr/local is the default --prefix)
238 - Produce static and shared libraries on some systems
239 - Configure system rearragement
240 - OS pmc started (mkdir,cd,cwd,rm,umask,stat)
242 - Test files are now testable with 'prove'
243 - Smoke (and smokej) outputs progress
244 - PIR supports: I = A < B (>,<=,>=,==,!=)
245 - Add support for octal number constants
247 - almost finish [string]; start [file]
248 - add build tool for generating inline'd tcl builtins from templates.
249 - Jako updates: NCI, subroutines, global variables and constants all work.
254 - New lexical handling and closure support including better
255 introspection for caller and outer
256 - PGE (Parrot Grammar Engine) provides now compilers for P6Rule,
257 P6Grammar, P5Regexp, and Glob
258 - ca. 1000 new tests including 800 for Perl5 regexp
259 - Improved unicode charset and encoding support
260 - Calling conventions for exception handlers
261 - Punie (Perl 1) uses TGE (Tree Grammar Engine) to convert from
262 PGE match objects to AST via two steps of tree transformation grammars
263 - New languages: amber and lua
264 - The usual code fixes, cleanup, and improvements, including an overhaul
265 of the config and test framework
269 - Variable sized register frames are finished. Each subroutine gets
270 the amount of registers that it actually needs. No more spilling.
271 - Vastly improved PGE (Parrot Grammar Engine) including shift-reduce,
272 precedence-based expression parser and support for matching of
273 bracketed text delimited by e.g. ()[]{}'"
274 - uniccode character classification (is_upper ...)
275 - support for heredoc syntax in assembler
276 - improved examples, basic JSON support
277 - debian packaging support
278 - the usual improvements, bug fixes, and cleanup
279 - test count exceeds 3000
283 - New calling conventions implemented: see PDD03 for details
284 - Merge multiple Parrot bytecode (PBC) files into a singe PBC file
285 - 'make smoke' target going beta
286 - bc now supports if statements, comparison ops, prefix inc/dec
287 - ParTcl adds [lassign], [switch] (partially); [expr] converted to a compiler
288 - Many exciting doc updates, tests, and bugfixes, too numerous to mention
292 - Dynamic classes now compile on Windows (including ParTcl)
293 - New Super PMC allows easy access to superclass methods
294 - Implement C3 method resolution order (just like Perl6 & Python)
295 - ParTcl has new PIR-based parser and passes more Tcl tests
296 - added character class support in Globs to PGE
297 - added language implementations of unlambda, Lazy-k
298 - many bugfixes, including GC and memory leaks
299 - the new calling scheme continued to evolve in branches/leo-ctx5
303 - new call scheme: docs/pdds/pdd03_calling_conventions.pod
304 - partial implementation of the new calling conventions
305 PASM only, don't mix PIR foo() call syntax with the new scheme
306 - grammar and rule support in PGE - the Parrot Grammar Engine
307 - TCL passes >10% of the tcl test suite
308 - the usual bugfixes and improvements
312 - better HLL support (short names for object attributes, and
313 .HLL and n_operators pragmas)
314 - string encoding and charset can now be set independently
315 - experimental mmap IO layer for slurping files
316 - distinct debug and trace flag settings
317 - glob support in PGE
318 - new character classification opcodes and interfaces
322 - parrot repository is now under subversion
323 - MMD (Multi Method Dispatch) enhanced
324 - new unary and infix opcodes that return new result PMCs
325 - dynamic scalar PMCs inherit now almost all from Parrot core PMCs
326 - more unification of PMCs and ParrotObjects
327 - tailcalls for functions and methods
328 - PGE (Parrot Grammar Engine) reworked
329 - Pugs creates Parrot code and Pugs is a registered compiler now
331 - the usual bug fixes and improvements
335 - New string handling code. Strings now have charset and encoding
336 - Parts of a generation garbage collector
337 - Better Python code, separated in dynclasses
338 - Parrot Grammar Engine
339 - Improved test coverage and documentation
343 Parrot 0.1.1 is an intermediate release with tons of updates and fixes.
344 - Python support: Parrot runs 4/7 of the pie-thon test suite
345 - Better OS support: more platforms, compiler, OS functions
346 - Improved PIR syntax for method calls and <op>= assignment
347 - Dynamic loading reworked including a "make install" target
348 - MMD - multi method dispatch for binary vtable methods
349 - Library improvement and cleanup
350 - BigInt, Complex, *Array, Slice, Enumerate, None PMC classes
351 - IA64 and hppa JIT support
352 - Tons of fixes, improvements, new tests, and documentation updates.
353 A lot is unfinished and keeps changing. Nethertheless Parrot is stable
354 and usable at the surface, while internals are moving.
357 - "Ladies and gentlemen, I give you... objects!"
358 - Huge documentation overhaul
359 - More supported platforms, s. PLATFORMS
360 - Basic thread support for pthread based architectures
361 - Basic event handling for timers and signals including:
362 - PASM callbacks for NCI (native C) functions.
363 - Improved platform configuration
364 - COW stacks now working, stacks code redone
365 - Structure handling vastly improved
366 - Random PMC and rand primitives
367 - Better subroutine call syntax in PIR
368 - Make PIR subroutines compliant with pdd03
369 - Improved profiling (DOD, GC timings)
370 - Hash code improvements, incl. random key order support
371 - Experimental freeze/thaw code for some PMC types
372 - IO improvements for buffered layer and Win32
374 - String bitwise vtables
376 - Support for JIT, where malloced memory isn't executable
377 - Priority DOD scheme for objects that need timely destruction
378 - Improved byte code loading (e.g. onLoad functions)
379 - Language updates: forth, Perl6/P6C, m4
380 - Libraries: Getopt_Long, SDL, Dumper, Sort
382 - Unified imcc and parrot test handling
383 - Many new tests (make test reports 1386 tests)
387 - The Big Move: Parrot source and build files rearranged into sub dirs
388 - Build imcc as parrot
389 - Objects more finished
390 - Delegate vtable methods to byte code
391 - Binary multi-method dispatching
392 - Isa and does methods for PMCs
393 - Call byte code from C
394 - Start of extension interface
395 - Experimental struct handling
396 - Catch access to NULL PMCs
397 - Experimental network socket interface code and opcodes
398 - IO fixes and improvements
399 - Dynamic opcode libraries
400 - Fix-assigned opcode numbers
401 - Argument flattening for function calls
402 - More native call interface (NCI) signatures
403 - Ncurses, postgres, and pcre interface libraries
404 - Forth language is vastly improved
405 - BSD and Win32 build improvements
406 - Many new tests and fixes
409 - This number intentionally left blank
413 - Dynamic PMC registration
414 - Trial exception system
415 - Beginnings of object system
418 - I/O system improvements
420 - Documentation for basic PMC types
421 - IMCC support of Parrot Calling Conventions
422 - Runtime loading of chartypes (and other string improvements)
423 - Conditional breakpoints
424 - Dramatically accelerated sweeps for finalizable objects
425 - Small PMCs (PMCs split into core and extensions)
426 - Loadable bytecode packfiles
428 - Sub variants that deal with the stack correctly
429 - Switched runops core
430 - Line numbers in warnings
432 - Many documentation cleanups
433 - Conversion to CPS style!
434 - BASIC debugger and many other wacky features
435 - Filename, line number parsing support in IMCC
440 - some more benchmarking
443 - intersegment branches
444 - more complete use of PObjs
445 - beefed up packfiles
446 - sub/continuation/coroutine fixes
447 - better NCI (native calling interface)
448 - many imcc improvements
453 - Native function calling interface (Dan)
454 - Stack/list aggregate rewrite (Leo)
455 - Scratchpads (Jonathan Sillito)
456 - Preliminary DotGNU support -- type conversion ops (Gopal V + Leo)
457 - Buffer/PMC unification (Leo)
458 - stabs debugging support for JIT (Leo)
459 - Jako overhaul (Gregor)
460 - Optional Lea allocator (Leo)
461 - Parrot sprintf (Brent)
463 - PMC Properties (Dan)
464 - Various JIT improvements (D. Grunblatt + Leo)
465 - Extensible packfiles (Juergen)
466 - Restructured PMC hierarchy (Leo)
467 - Real Scheme (Juergen)
471 - Several new grammars and a BNF -> perl5 and perl6 converter (Jeff)
472 - Working Perl6 REs (Sean)
473 - Keyed Access (Tom Hughes et al)
474 - New PMCs (Alberto et al)
475 - Better Documentation
477 - GC acceleration (Mike Lambert)
478 - Lexical scope (Jonathan Sillito)
484 - Perl 6 Grammar and Compiler (Sean)
485 - Subroutines, coroutines, and continuations (Melvin)
486 - GC improvements (Peter Gibbs, Mike Lambert)
487 - Global variables (Melvin)
488 - Intermediate bytecode compiler (Melvin, Angel)
489 - And much, much more.
493 - New assembler that support keyed types (Jeff)
494 - New macro layer, allowing constants (Jeff)
495 - New Configure.pl (Brent)
496 - Changes to bytecode format, endian issues resolved (Melvin)
497 - GC improvements and bug fixes (Peter Gibbs, Mike Lambert)
498 - JIT compiler rewrite (Jason and Daniel)
499 - Parrot assembler in Parrot (Daniel)
500 - Parrot debugger (Daniel)
501 - BASIC polished, Eliza.bas is new (Clint)
502 - Cola compiler committed and working, with limited OOP (Melvin)
503 - Keyed aggregates (Steve Fink)
504 - Global ops (Melvin)
505 - Compile-time speedup (Melvin)
508 - Contributed tetris and lzw files
509 - And many more, from the cast of thousands
514 - Perl Scalar support in PMCs
515 - Array and Hash types almost ready for prime-time
516 - Internal support for keyed types
519 - New Language - BASIC
520 - Regular expression compiler
522 - Many, many bug fixes, enhancements, and speedups
526 - Arena-based memory allocation system
529 - "Predereferencing" mode - ./parrot -P - 22% speedup
530 - JIT compiler - ./parrot -j
531 - Parrot now builds warnings-clean on many platforms
532 - Many more PMC methods implemented
533 - Regular expression operations
535 - Basic support for embedding Parrot in other programs
537 - Added PDDs to distribution
541 - Added an assembly optimizer
542 - Improved string encoding/type support
544 - Source reformatting
545 - Major refactoring in packfile library
546 - More Miniperl functionality
547 - New PMC "clone" operator
548 - Beginnings of key-based access to PMCs - arrays and hashes
549 - MOPS comparisons in examples/mops/
554 - Perl base scalar types implemented
555 - A new minilanguage, Scheme
556 - Much improved documentation
557 - Register stacks pushing and popping
558 - User stack pushing, popping and rotating
559 - Jako updates: subroutines, more example programs, optimizations
560 - test_prog renamed to 'parrot'
562 - Added features to the assembler: @ for current location, and global
564 - Build tweaks for VMS
565 - Bytecode typing clean-ups
566 - More platforms: OS X, HPUX, OS/2
567 - The proliferation of runops cores reduced to one fast and one slow one
568 - Opcode tracing, bounds checking, profiling
569 - Vastly improved string support, with separation of encoding and
572 - Multiple interpreter creation support - the beginnings of threading
573 - Much better resource handling - the beginnings of GC
577 - Parrot now works on all core platforms
578 - A large number of tests, in the standard Perl testing framework
579 - A new minilanguage (Jako) which compiles to Parrot assembly
580 - Documentation about the assembly language (docs/parrot_assembly.pod)
582 - Separate modules for assembly (Parrot::Assemble) and bytecode
583 manipulation (Parrot::PackFile::*, packfile.c)
584 - Assembler completely rewritten
585 - Better operand-type guessing in the assembler
586 - Assembler support for '\n' etc. in string constants
587 - Code reformatted to match the coding standards
588 - New ops for register-constant INTEGER comparisons
589 - Macro expansion in the assembler
590 - IVs and NVs renamed to more friendly INTVAL and NUMVAL
591 - Hard-coded pack("") formats removed
592 - Better handling of floating-point numbers in assembler
593 - Moved floats to constant table (fixing many alignment issues)