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Update to 0.4.0, provided by Anders Nor Berle in PR 32448. New in 0.4.0 - New lexical handling and closure support including better introspection for caller and outer - PGE (Parrot Grammar Engine) provides now compilers for P6Rule, P6Grammar, P5Regexp, and Glob - ca. 1000 new tests including 800 for Perl5 regexp - Improved unicode charset and encoding support - Calling conventions for exception handlers - Punie (Perl 1) uses TGE (Tree Grammar Engine) to convert from PGE match objects to AST via two steps of tree transformation grammars - New languages: amber and lua - The usual code fixes, cleanup, and improvements, including an overhaul of the config and test framework New in 0.3.1 - Variable sized register frames are finished. Each subroutine gets the amount of registers that it actually needs. No more spilling. - Vastly improved PGE (Parrot Grammar Engine) including shift-reduce, precedence-based expression parser and support for matching of bracketed text delimited by e.g. ()[]{}'" - uniccode character classification (is_upper ...) - support for heredoc syntax in assembler - improved examples, basic JSON support - debian packaging support - the usual improvements, bug fixes, and cleanup - test count exceeds 3000 New in 0.3.0 - New calling conventions implemented: see PDD03 for details - Merge multiple Parrot bytecode (PBC) files into a singe PBC file - 'make smoke' target going beta - bc now supports if statements, comparison ops, prefix inc/dec - ParTcl adds [lassign], [switch] (partially); [expr] converted to a compiler - Many exciting doc updates, tests, and bugfixes, too numerous to mention New in 0.2.3 - Dynamic classes now compile on Windows (including ParTcl) - New Super PMC allows easy access to superclass methods - Implement C3 method resolution order (just like Perl6 & Python) - ParTcl has new PIR-based parser and passes more Tcl tests - added character class support in Globs to PGE - added language implementations of unlambda, Lazy-k - many bugfixes, including GC and memory leaks - the new calling scheme continued to evolve in branches/leo-ctx5 New in 0.2.2 - new call scheme: docs/pdds/pdd03_calling_conventions.pod - partial implementation of the new calling conventions PASM only, don't mix PIR foo() call syntax with the new scheme - grammar and rule support in PGE - the Parrot Grammar Engine - TCL passes >10% of the tcl test suite - the usual bugfixes and improvements New in 0.2.1 - better HLL support (short names for object attributes, and .HLL and n_operators pragmas) - string encoding and charset can now be set independently - experimental mmap IO layer for slurping files - distinct debug and trace flag settings - glob support in PGE - new character classification opcodes and interfaces New in 0.2.0 - parrot repository is now under subversion - MMD (Multi Method Dispatch) enhanced - new unary and infix opcodes that return new result PMCs - dynamic scalar PMCs inherit now almost all from Parrot core PMCs - more unification of PMCs and ParrotObjects - tailcalls for functions and methods - PGE (Parrot Grammar Engine) reworked - Pugs creates Parrot code and Pugs is a registered compiler now - new languages/lisp - the usual bug fixes and improvements New in 0.1.2 - New string handling code. Strings now have charset and encoding - Parts of a generation garbage collector - Better Python code, separated in dynclasses - Parrot Grammar Engine - Improved test coverage and documentation New in 0.1.1 Parrot 0.1.1 is an intermediate release with tons of updates and fixes. - Python support: Parrot runs 4/7 of the pie-thon test suite - Better OS support: more platforms, compiler, OS functions - Improved PIR syntax for method calls and <op>= assignment - Dynamic loading reworked including a "make install" target - MMD - multi method dispatch for binary vtable methods - Library improvement and cleanup - BigInt, Complex, *Array, Slice, Enumerate, None PMC classes - IA64 and hppa JIT support - Tons of fixes, improvements, new tests, and documentation updates. A lot is unfinished and keeps changing. Nethertheless Parrot is stable and usable at the surface, while internals are moving. New in 0.1.0 - "Ladies and gentlemen, I give you... objects!" - Huge documentation overhaul - More supported platforms, s. PLATFORMS - Basic thread support for pthread based architectures - Basic event handling for timers and signals including: - PASM callbacks for NCI (native C) functions. - Improved platform configuration - COW stacks now working, stacks code redone - Structure handling vastly improved - Random PMC and rand primitives - Better subroutine call syntax in PIR - Make PIR subroutines compliant with pdd03 - Improved profiling (DOD, GC timings) - Hash code improvements, incl. random key order support - Experimental freeze/thaw code for some PMC types - IO improvements for buffered layer and Win32 - String iterators - String bitwise vtables - Many new opcodes - Support for JIT, where malloced memory isn't executable - Priority DOD scheme for objects that need timely destruction - Improved byte code loading (e.g. onLoad functions) - Language updates: forth, Perl6/P6C, m4 - Libraries: Getopt_Long, SDL, Dumper, Sort - new JAPH examples - Unified imcc and parrot test handling - Many new tests (make test reports 1386 tests) - Numerous bug fixes New in 0.0.13 - The Big Move: Parrot source and build files rearranged into sub dirs - Build imcc as parrot - Objects more finished - Delegate vtable methods to byte code - Binary multi-method dispatching - Isa and does methods for PMCs - Call byte code from C - Start of extension interface - Experimental struct handling - Catch access to NULL PMCs - Experimental network socket interface code and opcodes - IO fixes and improvements - Dynamic opcode libraries - Fix-assigned opcode numbers - Argument flattening for function calls - More native call interface (NCI) signatures - Ncurses, postgres, and pcre interface libraries - Forth language is vastly improved - BSD and Win32 build improvements - Many new tests and fixes New in 0.0.12 - This number intentionally left blank New in 0.0.11 - Executable output - Dynamic PMC registration - Trial exception system - Beginnings of object system - Iterators - Ordered hashes - I/O system improvements - References - Documentation for basic PMC types - IMCC support of Parrot Calling Conventions - Runtime loading of chartypes (and other string improvements) - Conditional breakpoints - Dramatically accelerated sweeps for finalizable objects - Small PMCs (PMCs split into core and extensions) - Loadable bytecode packfiles - Constant PMCs - Sub variants that deal with the stack correctly - Switched runops core - Line numbers in warnings - Environment access - Many documentation cleanups - Conversion to CPS style! - BASIC debugger and many other wacky features - Filename, line number parsing support in IMCC New in 0.0.10 - IMCC integration - eval - some more benchmarking - cgp core - optimized math ops - intersegment branches - more complete use of PObjs - beefed up packfiles - sub/continuation/coroutine fixes - better NCI (native calling interface) - many imcc improvements - jako improvements New in 0.0.9 - Native function calling interface (Dan) - Stack/list aggregate rewrite (Leo) - Scratchpads (Jonathan Sillito) - Preliminary DotGNU support -- type conversion ops (Gopal V + Leo) - Buffer/PMC unification (Leo) - stabs debugging support for JIT (Leo) - Jako overhaul (Gregor) - Optional Lea allocator (Leo) - Parrot sprintf (Brent) - Miniparrot (Josh) - PMC Properties (Dan) - Various JIT improvements (D. Grunblatt + Leo) - Extensible packfiles (Juergen) - Restructured PMC hierarchy (Leo) - Real Scheme (Juergen) New in 0.0.8 - Several new grammars and a BNF -> perl5 and perl6 converter (Jeff) - Working Perl6 REs (Sean) - Keyed Access (Tom Hughes et al) - New PMCs (Alberto et al) - Better Documentation - New COW semantics - GC acceleration (Mike Lambert) - Lexical scope (Jonathan Sillito) - IMCC patches - JIT for the ARM New in 0.0.7 - Perl 6 Grammar and Compiler (Sean) - Subroutines, coroutines, and continuations (Melvin) - GC improvements (Peter Gibbs, Mike Lambert) - Global variables (Melvin) - Intermediate bytecode compiler (Melvin, Angel) - And much, much more. New in 0.0.6 - New assembler that support keyed types (Jeff) - New macro layer, allowing constants (Jeff) - New Configure.pl (Brent) - Changes to bytecode format, endian issues resolved (Melvin) - GC improvements and bug fixes (Peter Gibbs, Mike Lambert) - JIT compiler rewrite (Jason and Daniel) - Parrot assembler in Parrot (Daniel) - Parrot debugger (Daniel) - BASIC polished, Eliza.bas is new (Clint) - Cola compiler committed and working, with limited OOP (Melvin) - Keyed aggregates (Steve Fink) - Global ops (Melvin) - Compile-time speedup (Melvin) - Much documentation - New PDDs (Dan) - Contributed tetris and lzw files - And many more, from the cast of thousands New in 0.0.5 - Full GC - Perl Scalar support in PMCs - Array and Hash types almost ready for prime-time - Internal support for keyed types - EMACS editing mode - New PDDs - New Language - BASIC - Regular expression compiler - More tests - Many, many bug fixes, enhancements, and speedups New in 0.0.4 - Arena-based memory allocation system - Copying GC - New IO subsystem - "Predereferencing" mode - ./parrot -P - 22% speedup - JIT compiler - ./parrot -j - Parrot now builds warnings-clean on many platforms - Many more PMC methods implemented - Regular expression operations - Added a FAQ - Basic support for embedding Parrot in other programs - Warnings support - Added PDDs to distribution - Bignum library - PMC inheritance - Added an assembly optimizer - Improved string encoding/type support - Many more tests - Source reformatting - Major refactoring in packfile library - More Miniperl functionality - New PMC "clone" operator - Beginnings of key-based access to PMCs - arrays and hashes - MOPS comparisons in examples/mops/ New in 0.0.3 - PMCs! - Perl base scalar types implemented - A new minilanguage, Scheme - Much improved documentation - Register stacks pushing and popping - User stack pushing, popping and rotating - Jako updates: subroutines, more example programs, optimizations - test_prog renamed to 'parrot' - Added features to the assembler: @ for current location, and global labels - Build tweaks for VMS - Bytecode typing clean-ups - More platforms: OS X, HPUX, OS/2 - The proliferation of runops cores reduced to one fast and one slow one - Opcode tracing, bounds checking, profiling - Vastly improved string support, with separation of encoding and charset - Lots more tests - Multiple interpreter creation support - the beginnings of threading - Much better resource handling - the beginnings of GC New in 0.0.2 - Parrot now works on all core platforms - A large number of tests, in the standard Perl testing framework - A new minilanguage (Jako) which compiles to Parrot assembly - Documentation about the assembly language (docs/parrot_assembly.pod) - Separate modules for assembly (Parrot::Assemble) and bytecode manipulation (Parrot::PackFile::*, packfile.c) - Assembler completely rewritten - Better operand-type guessing in the assembler - Assembler support for '\n' etc. in string constants - Code reformatted to match the coding standards - New ops for register-constant INTEGER comparisons - Macro expansion in the assembler - IVs and NVs renamed to more friendly INTVAL and NUMVAL - Hard-coded pack("") formats removed - Better handling of floating-point numbers in assembler - Moved floats to constant table (fixing many alignment issues)
2006-01-03 20:25:06 +01:00
Parrot is the new interpreter being designed from scratch to support the
upcoming Perl6 language. It is being designed as a standalone virtual
machine that can be used to execute bytecode compiled dynamic languages
such as Perl6, but also Perl5. Ideally, Parrot can be used to support
other dynamic, bytecode-compiled languages such as Python, Ruby and Tcl.
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