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Change Log

All notable changes to the Pony compiler and standard library will be documented in this file. This project adheres to Semantic Versioning and Keep a CHANGELOG.

[unreleased] - unreleased

Fixed

  • Fix off-by-one error in String.cstring (PR #2616)
  • Fix compiler crash related to array inference. (PR #2603)
  • Ensure ASIO thread cannot be stopped prematurely (PR #2612)
  • Handle EAGAIN errors on socket operations (PR #2611)
  • Properly report type parameter capability errors (PR #2598)
  • Update the Windows build to support the latest Visual C++ Build Tools (PR #2594)
  • Fix tracing of boxed tuples through interfaces (PR #2593)
  • Partially mitigate LLVM's infinite loops bug (PR #2592)
  • Fix extracting docstring from constructors (PR #2586)
  • Always unsubscribe process_monitor fds before closing them (#2529) (PR #2574)
  • Fix two race conditions where an ASIO wakeup notifications can be lost (PR #2561)
  • Fix compiler crash in alternate name suggestion logic (issue #2508). (PR #2552)
  • Make the File.open constructor use read-only mode (Issue #2567) (PR #2568)
  • Correctly typecheck FFI arguments with regard to aliasing (PR #2550)
  • Allow tuples to match empty interfaces (PR #2532)
  • Properly report default argument inference errors (PR #2504)
  • Do not catch foreign exceptions in Pony try blocks. This still doesn't work on Windows, foreign code doesn't catch foreign exceptions if they've traversed a Pony frame. (PR #2466)
  • Fix LLVM IR verification with DoNotOptimise (PR #2506)

Added

  • Allow recovering at most one element of a tuple to mutable capability. (PR #2585)
  • Add full'ish support for network socket get & set options (PR #2513)
  • Add basic compiler plugins (PR #2566)
  • [RFC 50] add member docstrings (PR #2543)
  • Allow user defined help string at CommandSpec.add_help() (PR #2535)
  • Embed source code into generated documentation. (PR #2439)
  • Compile error when comparing sugared constructors with 'is' or 'isnt' (#2024) (PR #2494)
  • Support OpenSSL 1.1.0 (PR #2415)
  • Add U64 type to cli package. (PR #2488)

Changed

  • New Ponybench API (RFC 52) (PR #2578)
  • Forbid impossible pattern matching on generic capabilities (PR #2499)
  • Remove case functions (PR #2542)
  • Rename Date to PosixDate (PR #2436)
  • Fix and re-enable dynamic scheduler scaling (PR #2483)
  • Expose OutStream rather than StdStream in Env (PR #2463)

[0.21.3] - 2018-01-14

Fixed

  • Fix pthread condition variable usage for dynamic scheduler scaling (PR #2472)
  • Fix various memory leaks (PR #2479)
  • Fix double free in expr_typeref (PR #2467)
  • Fix some spurious process manager test failures (PR #2452)
  • Fix ANTLR definition for char escape sequences (PR #2440)

Added

  • Add the pony_try function to receive Pony errors in C code (PR #2457)

Changed

  • Disable -avx512f on LLVM < 5.0.0 to avoid LLVM bug 30542 (PR #2475)
  • Deprecate LLVM 3.7.1 and 3.8.1 support (PR #2461)

[0.21.2] - 2017-12-26

Fixed

  • Don't suspend schedulers if terminating and reset steal_attempts on wake (PR #2447)

[0.21.1] - 2017-12-23

Added

  • Dynamic scheduler thread scaling based on workload (PR #2386)
  • Support setting the binary executable name with --bin-name. (PR #2430)

[0.21.0] - 2017-12-17

Fixed

  • Forbid structs with embed fields with finalisers (PR #2420)
  • Fix codegen ordering of implicit finalisers (PR #2419)
  • Fix GC tracing of struct fields (PR #2418)
  • Remove redundant error message for unhandled partial calls that are actually in a try block. (PR #2411)
  • Fix allocation sizes in runtime benchmarks (PR #2383)
  • Fail pony_start if ASIO backend wasn't successfully initialized (PR #2381)
  • Make windows sleep consistent with non-windows sleep (PR #2382)
  • Fix Iter.{skip,take,nth} to check '.has_next()' of their inner iterator (PR #2377)
  • Restart ASIO if needed while runtime is attempting to terminate. (PR #2373)
  • fix Range with negative or 0 step and allow backward Ranges (having min > max) (PR #2350)
  • Improve work-stealing "scheduler is blocked" logic (PR #2355)
  • Make take_while short-circuit (PR #2358)
  • Fix compilation error with 'use=dtrace' for FreeBSD 11 (PR #2343)
  • Fix Set.intersect (PR #2361)
  • Fixed state handling of HTTP client connections (PR #2273)
  • Fix incorrect detection of exhaustive matches for structural equality comparisons on some primitives. (PR #2342)
  • Fix poor randomness properties of first call to Rand.next(). (PR #2321)
  • Fully close unspecified family TCP connections on Windows. (PR #2325)
  • Make ContentsLogger implement the Logger interface (PR #2330)
  • Fix alloc bug in String/Array trimming functions (PR #2336)
  • Fix small chunk finaliser premature re-use bug (PR #2335)
  • Make Payload.respond() send given parameter, not this. (PR #2324)
  • Garbage collect actors when --ponynoblock is in use (PR #2307)
  • Fix incorrect kevent structure size (PR #2312)
  • Fix possible repetition in Iter.flat_map (PR #2304)

Added

  • Add DTrace probes for all message push and pop operations (PR #2295)
  • Experimental support for LLVM 4.0.1 (#1592) and 5.0.0. (PR #2303)
  • Add pony stable to docker image (PR #2364)
  • Enable CodeView debug information with MSVC on Windows (PR #2334)
  • Generalized runtime backpressure. (PR #2264)
  • A microbenchmark for measuring message passing rates in the Pony runtime. (PR #2347)
  • Add chop function for chopping iso Strings and Arrays (PR #2337)
  • Add --ponyversion option to compiled binary (PR #2318)
  • Implement RFC 47 (Serialise signature) (PR #2272)

Changed

  • Remove unused FormatSettings interface and related types. (PR #2397)
  • Error on unreachable cases in match expressions and illegal as expressions. (PR #2289)

[0.20.0] - 2017-10-17

Fixed

  • Forbid single '_' in case expr and case methods (PR #2269)

Changed

  • Turn off LTO by default on OSX (PR #2284)
  • Replace memory-leak-inciting Writer.reserve with more intuitive Writer.reserve_current method. (PR #2260)

[0.19.3] - 2017-10-09

Fixed

  • Don't verify partial calls for method bodies inherited from a trait. (PR #2261)
  • Fix broken method and type headings in generated documentation (PR #2262)
  • Fix array inference from ReadSeq interface with tuple element type. (PR #2259)
  • Fix compiler crash related to inferred lambda argument in apply sugar. (PR #2258)
  • Fix excess work stealing under low loads (PR #2254)
  • Fix compiler crash on case methods with _ as a method parameter. (PR #2252)
  • Fix implicit fallthrough in array inference. (PR #2251)
  • Fix small chunk finaliser bug. (PR #2257)

[0.19.2] - 2017-09-24

Fixed

  • Fix codegen failure on field access (PR #2244)
  • Make Windows link step use the command-line --linker value if present. (PR #2231)
  • Fix empty string serialisation (PR #2247)

Added

  • Added Array.swap_elements, Random.shuffle and extends Random with methods for generating all Integer types (RFC 46). (PR #2128)

[0.19.1] - 2017-09-14

Fixed

  • Fix broken "make" command (PR #2220)
  • Fix inconsistencies in multi-line triple-quoted strings (PR #2221)
  • Fix undersized string buffer for library link command in Windows. (PR #2223)
  • Fix Iter.take to handle infinite iterator (PR #2212)
  • Fix handling of empty and multi-byte character literals (PR #2214)

Added

  • Inference of lambda type and array element type from an antecedent (RFC 45). (PR #2168)

[0.19.0] - 2017-09-02

Fixed

  • Fix codegen failures on incompatible FFI declarations (PR #2205)
  • Disallow named arguments for methods of a type union where parameter names differ (PR #2194)
  • Fix compiler crash on illegal read from '_' (PR #2201)
  • Fix signals on Sierra (PR #2195)
  • Fix race condition in kqueue event system implementation (PR #2193)

Added

  • pony_chain runtime function

Changed

  • The pony_sendv and pony_sendv_single runtime functions now take a message chain instead of a single message
  • Improve the itertools API (RFC 49) (PR #2190)
  • Forbid struct finalisers (PR #2202)

[0.18.1] - 2017-08-25

Fixed

  • Don't print capabilities for type params when generating docs (PR #2184)

Added

  • DragonFly BSD 4.8 support (PR #2183)
  • Process monitor async write buffering (PR #2186)

[0.18.0] - 2017-08-19

Fixed

  • Fix compiler crash on union-of-tuples to tuple conversions (PR #2176)
  • Fix compiler error on lambda capture of '_' (PR #2171)
  • Fix read past the end of a buffer in pool.c. (PR #2139)

Changed

  • Make actor continuations a build time option (PR #2179)
  • RFC #48 Change String.join to take Iterable (PR #2159)
  • Change fallback linker to "gcc" from "gcc-6" on Linux. (PR #2166)
  • Change the signature of pony_continuation and pony_triggergc to take a pony_ctx_t* instead of a pony_actor_t*.

[0.17.0] - 2017-08-05

Fixed

  • Fix cursor location for displaying compiler errors and info. (PR #2136)
  • Fix indent detection when lexing docstrings that contain whitespace-only lines. (PR #2131)
  • Fix compiler crash on typecheck error in FFI call. (PR #2124)
  • Fix compiler assert on match including structural equality on union type. (PR #2117)

Added

  • Support GCC7 on Linux (PR #2134)
  • Add regex match iterator (PR #2109)
  • Add more promise methods (RFC 35) (PR #2084)
  • Add ability to default enable PIC when compiling ponyc (PR #2113)

Changed

  • Treat as type of array literals as the alias of the element type. (PR #2126)
  • docgen: ignore test types and add cli flag to only document public types (PR #2112)

[0.16.1] - 2017-07-30

Fixed

  • Fix reachability analysis for intersection types (PR #2106)
  • Fix compiler assertion failure at code generation (PR #2099)
  • FreeBSD builds(PR #2107)

[0.16.0] - 2017-07-28

Fixed

  • Fix compiler assertion failure on unused reference to _ (PR #2091)
  • Destroy all actors on runtime termination (PR #2058)
  • Fixed compiler segfault on empty triple quote comment. (PR #2053)
  • Fix compiler crash on exhaustive match where last case is a union subset (PR #2049)
  • Make pony_os_std_print() write a newline when given empty input. (PR #2050)
  • Fix boxed tuple identity when type identifiers differ (PR #2009)
  • Fix crash on interface function pointer generation (PR #2025)

Added

  • Alpine Linux compatibility for pony (PR #1844)
  • Add cli package implementing the CLI syntax (RFC #38)
    • Initial (PR #1897) implemented the full RFC and contained:
      • Enhanced Posix / GNU program argument syntax.
      • Commands and sub-commands.
      • Bool, String, I64 and F64 option / arg types.
      • Help command and syntax errors with formatted output.
    • Update (PR #2019) added:
      • String-seq (ReadSeq[String]) types for repeated string options / args.
      • Command fullname() to make it easier to match on unique command names.
      • Checking that commands are leaves so that partial commands return syntax errors.

Changed

  • Forbid returning and passing tuples to FFI functions (PR #2012)
  • Deprecate support of Clang 3.3
  • Explicit partial calls - a question mark is now required to be at the call site for every call to a partial function.
    • See RFC 39.
    • Migration scripts for user code, for convenience, are provided here:

[0.15.0] - 2017-07-08

Fixed

  • Fix bug in as capture (PR #1981)
  • Fix assert failure on lambda parameter missing type. (PR #2011)
  • Fix iftype where the type variable appears as a type parameter. (PR #2007)
  • Fix support for recursive constraints in iftype conditions. (PR #1961)
  • Fix segfault in Array.trim_in_place (PR #1999)
  • Fix segfault in String.trim_in_place (PR #1997)
  • Assertion failure with directly recursive trait (PR #1989)
  • Add compile error for generic Main (PR #1970)
  • Prevent duplicate long_tests from being registered (PR #1962)
  • Assertion failure on identity comparison of tuples with different cardinalities (PR #1946)
  • Stop default arguments from using the function scope (PR #1948)
  • Fix compiler crash when a field is used in a default argument. (PR #1940)
  • Fix compiler crash on non-existent field reference in constructor. (PR #1941)
  • Fix compiler crash on "_" as argument in a case expression. (PR #1924)
  • Fix compiler crash on type argument error inside an early return. (PR #1923)
  • Correctly generate debug information in forwarding methods (PR #1914)
  • Resolved compiler segfault on optimization pass (issue #1225) (PR #1910)
  • Fix a bug in finaliser handling (PR #1908)
  • Fix compiler crash for type errors in call arguments inside a tuple. (PR #1906)
  • Fix compiler crash involving "dont care" symbol in an if or try block. (PR #1907)
  • Don't call TCPConnection backpressure notifies incorrectly (PR #1904)
  • Fix outdated methods in persistent.Map docstring. (PR #1901)
  • Fix format for number types (issue #1920) (PR #1927)

Added

  • Make tuples be subtypes of empty interfaces (like Any). (PR #1937)
  • Add Persistent Vec (RFC 42) (PR #1949)
  • Add support for custom serialisation (RFC 21) (PR #1839)
  • Add persistent set (RFC 42) (PR #1925)
  • Bare methods and bare lambdas (RFC 34) (PR #1858)
  • xoroshiro128+ implementation (PR #1909)
  • Exhaustive match (RFC #40) (PR #1891)
  • Command line options for printing help (PR #1899)
  • Nanos.from_wall_clock function to convert from a wall clock as obtained from Time.now() into number of nanoseconds since "the beginning of time". (PR #1967)

Changed

  • Change machine word constructors to have no default argument. (PR #1938)
  • Change iftype to use elseif instead of elseiftype as next keyword. (PR #1905)
  • Removed misleading Time.wall_to_nanos. (PR #1967)

[0.14.0] - 2017-05-06

Fixed

  • Compiler error instead of crash for invalid this-dot reference in a trait. (PR #1879)
  • Compiler error instead of crash for too few args to constructor in case pattern. (PR #1880)
  • Pony runtime hashmap bug that resulted in issues #1483, #1781, and #1872. (PR #1886)
  • Compiler crash when compiling to a library (Issue #1881)(PR #1890)

Changed

  • TCPConnection.connect_failed, UDPNotify.not_listening, TCPListenNotify.not_listening no longer have default implementation. The programmer is now required to implement error handling or consciously choose to ignore. (PR #1853

[0.13.2] - 2017-04-29

Fixed

  • Don’t consider type arguments inside a constraint as constraints. (PR #1870)
  • Disable mcx16 on aarch64 (PR #1856)
  • Fix assert failure on explicit reference to this in constructor. (issue #1865) (PR #1867)
  • Compiler crash when using unconstrained type parameters in an iftype condition (issue #1689)

[0.13.1] - 2017-04-22

Fixed

  • Reify function references used as addressof operands correctly (PR #1857)
  • Properly account for foreign objects in GC (PR #1842)
  • Compiler crash when using the addressof operator on a function with an incorrect number of type arguments

Added

[0.13.0] - 2017-04-07

Fixed

  • Do not allow capability subtyping when checking constraint subtyping. (PR #1816)
  • Allow persistent map to use any hash function (PR #1799)

Changed

  • Pass # of times called to TCPConnectionNotify.received (PR #1777)

[0.12.3] - 2017-04-01

Fixed

  • Improve Visual Studio and Microsoft C++ Build Tools detection. (PR #1794)

[0.12.2] - 2017-03-30

Fixed

  • Fix extreme CPU use in scheduler on Windows (PR #1785)
  • Fix broken ponytest "only" filter (PR #1780)

[0.12.1] - 2017-03-29

Fixed

  • Bug in ponytest resulted in all tests being skipped (PR #1778)

[0.12.0] - 2017-03-29

Fixed

  • Don't ignore buffer length when printing (PR #1768)
  • Ifdef out ANSITerm signal handler for SIGWINCH (PR #1763)
  • Fix build error on 32 bits systems (PR #1762)
  • Fix annotation-related compiler assertion failure (issue #1751) (PR #1757)
  • Improve packaged Linux binary performance (PR #1755)
  • Fix false positive test failure on 32 bits (PR #1749)

Added

  • Support XCode 8.3 and LLVM 3.9 (PR #1765)

Changed

  • Arrays as sequences (PR #1741)
  • Add ability for ponytest to exclude tests based on name (PR #1717)
  • Renamed ponytest "filter" flag to "only" (PR #1717)

[0.11.4] - 2017-03-23

Fixed

  • Identity comparison of boxed values (PR #1726)
  • Reify type refs in inherited method bodies (PR #1722)
  • Fix compilation error on non-x86 systems (PR #1718)
  • Call finalisers for embedded fields when parent type has no finalizer. (PR #1629)
  • Fix compiling errors for 32-bit (PR #1709)
  • Improved persistent map api (RFC 36) (PR #1705)
  • Fix compiler assert on arrow to typeparam in constraint. (PR #1701)
  • Segmentation fault on runtime termination.

[0.11.3] - 2017-03-16

Fixed

  • Build Linux release binaries correctly (PR #1699)

[0.11.2] - 2017-03-16

Fixed

  • Fix illegal instruction errors on older cpus when using packaged Pony (PR #1686)
  • Correctly pass arch= when building docker image (PR #1681)

Changed

  • Make buffered.Reader.append accept any ByteSeq. (PR #1644)

[0.11.1] - 2017-03-14

Fixed

  • Fix AVX/AVX2 issues with prebuilt ponyc (PR #1663)
  • Fix linking with '--as-needed' (sensitive to linking order) (PR #1654)
  • Fix FreeBSD 11 compilation

[0.11.0] - 2017-03-11

Fixed

  • Make HTTPSession type tag by default (PR #1650)
  • Fix type parameters not being visible to a lambda type in a type alias (PR #1633)
  • Remove the check for union types on match error (PR #1630)
  • TCPListener: unsubscribe asio before socket close (PR #1626)
  • Fix buffer overflow in case method docstring (PR #1615)
  • Fix capability checking for gencap-constrained type parameters. (PR #1593)
  • Fix error in ANTLR grammar regarding duplicate '-~'. (#1602) (PR #1604)
  • Escape special characters in ANLTR strings. (#1600) (PR #1601)
  • Use LLVM to detect CPU features by default if --features aren't specified. (PR #1580)
  • Always call finalisers for embedded fields (PR #1586)
  • Check for null terminator in String._append (PR #1582)
  • Fix TCP Connection data receive race condition (PR #1578)
  • Fix Linux epoll event resubscribe performance and race condition. (PR #1564)
  • Correctly resubscribe TCPConnection to ASIO events after throttling (PR #1558)
  • Performance fix in the runtime actor schedule (PR #1521)
  • Disallow type parameter names shadowing other types. (PR #1526)
  • Don't double resubscribe to asio events in TCPConnection (PR #1509)
  • Improve Map.get_or_else performance (PR #1482)
  • Back pressure notifications now given when encountered while sending data during TCPConnection pending writes
  • Improve efficiency of muted TCPConnection on non Windows platforms (PR #1477)
  • Compiler assertion failure during type checking
  • Runtime memory allocator bug
  • Compiler crash on tuple sending generation (issue #1546)
  • Compiler crash due to incorrect subtype assignment (issue #1474)
  • Incorrect code generation when sending certain types of messages (issue #1594)

Added

  • Close over free variables in lambdas and object literals (PR #1648)
  • Add assert_no_error test condition to PonyTest (PR #1605)
  • Expose st_dev and st_ino fields of stat structure (PR #1589)
  • Packed structures (RFC 32) (PR #1536)
  • Add insert_if_absent method to Map (PR #1519)
  • Branch prediction annotations (RFC 30) (PR #1528)
  • Readline interpret C-d on empty line as EOF (PR #1504)
  • AST annotations (RFC 27) (PR #1485)
  • Unsafe mathematic and logic operations. Can be faster but can have undefined results for some inputs (issue #993)
  • Equality comparison for NetAddress (PR #1569)
  • Host address comparison for NetAddress (PR #1569)

Changed

  • Rename IPAddress to NetAddress (PR #1559)
  • Remove delegates (RFC 31) (PR #1534)
  • Upgrade to LLVM 3.9.1 (PR #1498)
  • Deprecate LLVM 3.6.2 support (PR #1511) (PR #1502) (PR ##1512)
  • Ensure TCPConnection is established before writing data to it (issue #1310)
  • Always allow writing to _ (dontcare) (PR #1499)
  • Methods returning their receiver to allow call chaining have been changed to return either None or some useful value. Generalised method chaining implemented in version 0.9.0 should be used as a replacement. The full list of updated methods follows. No details means that the method now returns None.
    • builtin.Seq
      • reserve
      • clear
      • push
      • unshift
      • append
      • concat
      • truncate
    • builtin.Array
      • reserve
      • compact
      • undefined
      • insert
      • truncate
      • trim_in_place
      • copy_to
      • remove
      • clear
      • push
      • unshift
      • append
      • concat
      • reverse_in_place
    • builtin.String
      • reserve
      • compact
      • recalc
      • truncate
      • trim_in_place
      • delete
      • lower_in_place
      • upper_in_place
      • reverse_in_place
      • push
      • unshift
      • append
      • concat
      • clear
      • insert_in_place
      • insert_byte
      • cut_in_place
      • replace (returns the number of occurrences replaced)
      • strip
      • lstrip
      • rstrip
    • buffered.Reader
      • clear
      • append
      • skip
    • buffered.Writer
      • reserve
      • reserve_chunks
      • number writing functions (e.g. u16_le)
      • write
      • writev
    • capsicum.CapRights0
      • set
      • unset
    • collections.Flag
      • all
      • clear
      • set
      • unset
      • flip
      • union
      • intersect
      • difference
      • remove
    • collections.ListNode
      • prepend (returns whether the node was removed from another List)
      • append (returns whether the node was removed from another List)
      • remove
    • collections.List
      • reserve
      • remove
      • clear
      • prepend_node
      • append_node
      • prepend_list
      • append_list
      • push
      • unshift
      • append
      • concat
      • truncate
    • collections.Map
      • concat
      • compact
      • clear
    • collections.RingBuffer
      • push (returns whether the collection was full)
      • clear
    • collections.Set
      • clear
      • set
      • unset
      • union
      • intersect
      • difference
      • remove
    • files.FileMode
      • exec
      • shared
      • group
      • private
    • files.File
      • seek_start
      • seek_end
      • seek
      • flush
      • sync
    • time.Date
      • normal
    • net.http.Payload
      • update (returns the old value)
    • net.ssl.SSLContext
      • set_cert
      • set_authority
      • set_ciphers
      • set_client_verify
      • set_server_verify
      • set_verify_depth
      • allow_tls_v1
      • allow_tls_v1_1
      • allow_tls_v1_2
  • TCP sockets on Linux now use Epoll One Shot
  • Non-sendable locals and parameters are now seen as tag inside of recover expressions instead of being inaccessible.
  • TCP sockets on FreeBSD and MacOSX now use Kqueue one shot
  • All arithmetic and logic operations are now fully defined for every input by default (issue #993)
  • Removed compiler flag --ieee-math
  • The pony_start runtime function now takes a language_features boolean parameter indicating whether the Pony-specific runtime features (e.g. network or serialisation) should be initialised

[0.10.0] - 2016-12-12

Fixed

  • Don't violate reference capabilities when assigning via a field (PR #1471)
  • Check errors correctly for method chaining (PR #1463)
  • Fix compiler handling of type params in stacks (issue #918) (PR #1452)
  • Fix String.recalc method for cases where no null terminator is found (issue #1446) (PR #1450)
  • Make space() check if string is null terminated (issue #1426) (PR #1430)
  • Fix is_null_terminated reading arbitrary memory (issue #1425) (PR #1429)
  • Set null terminator in String.from_iso_array (issue #1435) (PR #1436)

Added

  • Added String.split_by, which uses a string delimiter (issue #1399) (PR #1434)
  • Extra DTrace/SystemTap probes concerning scheduling.

Changed

  • Behaviour calls return None instead of their receiver (RFC 28) (PR #1460)
  • Update from_array to prevent a copy (issue #1097) (PR #1423)

[0.9.0] - 2016-11-11

Fixed

  • Stop leaking memory during serialization (issue #1413) (PR #1414)
  • Fixed compiler segmentation fault when given an invalid target triple. (PR #1406)
  • Fixed error message when no type arguments are given (issue #1396) (PR #1397)
  • Fixed compiler assert failure when constructor is called on type intersection (issue #1398) (PR #1401)
  • Fix compiler assert fail on circular type inference error (issue #1334) (PR #1339)
  • Performance problem in the scheduler queue when running with many threads (issue #1404)
  • Invalid name mangling in generated C headers (issue #1377)

Added

  • Method chaining (RFC #25) (PR #1411)
  • Iter class methods all, any, collect, count, find, last, nth, run, skip, skip_while, take, take_while (issue #1370)
  • Output of ponyc --version shows C compiler used to build pony (issue #1245)
  • Makefile detects llvmconfig39 in addition to llvm-config-3.9 (#1379)
  • LLVM 3.9 support

Changed

  • Changed lambda literal syntax to be more concise (issue #1391) (PR #1400)

[0.8.0] - 2016-10-27

Fixed

  • Link the correct version of libponyrt when compiling with --pic on Linux (issue #1359)

Added

  • Runtime function pony_send_next. This function can help optimise some message sending scenarios.
  • Floating point min_normalised. The function returns the smallest normalised positive number, as min_value used to do (issue #1351)

Changed

  • Floating point min_value now returns the smallest negative number instead of the smallest normalised positive number (issue #1351)

[0.7.0] - 2016-10-22

Fixed

  • Concatenate docstrings from case methods (issue #575).

Added

  • TCP read and write backpressure hooks in TCPConnection (issue #1311)
  • Allow TCP notifiers to cause connections to yield while receiving (issue #1343)

Changed

  • break without a value now generates its value from the else branch of a loop instead of being an implicit break None.
  • The for loop will now break out of the loop instead of continuing with the following iterations if Iterator.next errors.

[0.6.0] - 2016-10-20

Fixed

  • Compiling ponyrt with Clang versions >= 3.3, < 3.6.
  • Restrict mutable tuple recovery to maintain reference capability security (issue #1123)
  • Crash in the runtime scheduler queues

Added

  • DTrace and SystemTap support - use=dtrace

Changed

  • Replaces use=telemetry by DTrace/SystemTap scripts
  • String.cstring() now always returns a null-terminated string (which may result in a copy) while cpointer() (also available on Array objects) returns a pointer to the underlying array as-is (issue #1309).

[0.5.1] - 2016-10-15

Fixed

  • SSLConnection ignoring the sent notifier method (issue #1268)
  • Runtime crash in the runtime scheduler queues (issue #1319)

[0.5.0] - 2016-10-09

Fixed

  • Memory copy bounds for String.clone (issue #1289).
  • Security issues in ProcessMonitor (issue #1180)
  • SSLConnection bugs due to missing sentv notify method (issue #1282)

Added

  • Iter class (issue #1267)
  • read_until method on buffered.Reader (RFC 0013)
  • format package (issue #1285)

Changed

  • Stringable interface no longer involves formatting (issue #1285)
  • Remove unused error types from ProcessError (issue #1293)
  • HTML documentation for expanded union types now adds line breaks to improve readability (issue #1263)

[0.4.0] - 2016-09-26

Fixed

  • Unexpected message ordering in ProcessManager (issue #1265)

Added

  • TCP writev performance improvement by avoiding throwing errors

[0.3.3] - 2016-09-23

Fixed

  • Incorrect build number generated on Windows when building from non-git directory.
  • Stop generating llvm.invariant.load for fields of val references.
  • Embedded fields construction through tuples.

Added

  • Improved error handling for files package.
  • ProcessMonitor.expect
  • ProcessNotify.created
  • ProcessNotify.expect

Changed

  • On Linux and FreeBSD, ponyc now uses $CC as the linker if the environment variable is defined.

[0.3.2] - 2016-09-18

Fixed

  • The ponyc version is now consistently set from the VERSION file.
  • Stop generating llvm.invariant.load intrinsic for "let" references, as these don't necessarily match the semantics of that intrinsic.

Changed

  • The setversion and release commands have been removed from Makefile.
  • LTO is again enabled by default on OSX
  • make now builds a release rather than debug build by default

[0.3.1] - 2016-09-14

Fixed

  • Make sure all scheduler threads are pinned to CPU cores; on Linux/FreeBSD this wasn't the case for the main thread.
  • Account for both hyperthreading and NUMA locality when assigning scheduler threads to cores on Linux.
  • Stop generating llvm.invariant.start intrinsic. It was causing various problems in code generation.
  • Buffer overflow triggerable by very long ponyc filename (issue #1177).
  • Assertion failure in optimisation passes.
  • Race condition in scheduler queues on weakly-ordered architectures.
  • Issue #1212 by reverting commit e56075d46d7d9e1d8c5e8be7ed0506ad2de98734

Added

  • --ponypinasio runtime option for pinning asio thread to a cpu core.
  • --ponynopin runtime option for not pinning any threads at all.

Changed

  • Path.base now provides option to omit the file extension from the result.
  • Map.upsert returns value for upserted key rather than this.
  • ponyc --version now includes llvm version in its output.
  • LTO is now disabled by default on OSX.

[0.3.0] - 2016-08-26

Fixed

  • Check for Main.create before reachability analysis.
  • Interface subtyping need not be invariant on type args.
  • @fowles: handle regex empty match.
  • @praetonus: readline history handling.
  • Put unbox constructors on machine words into the vtable.
  • @jonas-l: parse URL with omitted password.
  • Adjust for ephemerality in cap_single().
  • Finalisation always occurs.
  • Type checking platform dependent FFI declarations on all platforms.
  • Interface subtyping takes receiver capabilities into account.
  • Pony-as-library support, particularly pony_register_thread().
  • Bug in HashMap._search.
  • Crashing gc bug caused by "force freeing" objects with finalizers.
  • Bug in String.compare and String.compare_sub.
  • Crashing gc bug from using get instead of getorput in gc_markactor.
  • Add -rpath to the link command for library paths
  • Simplify contains() method on HashMap.
  • Lambda captures use the alias of the expression type.
  • Trace boxed primitives in union types.
  • Use -isystem for LLVM include directory only if it is not in search path.
  • Union tuples as return type with machine words (issue #849)
  • Incorrect " handling in character literals
  • Incorrect ' handling in string literals
  • Compiler crash on type alias of a lambda type.
  • Late detection of errors silently emitted in lexer/parser.
  • Compiler crash when handling invalid lambda return types
  • Memory leak fixed when something sent as iso is then sent as val.
  • Compiler crash when handling object literal with uninitialized fields.
  • Associate a nice name with function types based on the type of the function.
  • Use the nice name for types when generating documentation.
  • Compiler crash when generating C library for the exported actors containing functions with variadic return type contatining None
  • AST Printing of string literals with quote characters.
  • HTTP/1.1 connections are now persistent by default.
  • Runtime crash when Main.create is a function instead of a constructor.
  • Compiler bug where as operator with a lambda literal caused seg fault.
  • String.read_int failure on lowest number in the range of signed integers.
  • Regex incorrect of len variable when PCRE2_ERROR_NOMEMORY is encountered.
  • No longer silently ignores lib paths containing parens on Windows.
  • Make linking more dynamic and allow for overriding linker and linker arch.
  • Fix issue with creating hex and octal strings if precision was specified.
  • Correctly parses Windows 10 SDK versions, and includes new UCRT library when linking with Windows 10 SDK.
  • Performance of Array.append and Array.concat (no unnecessary calls to push).
  • Performance of Map.upsert and Map.update (don't replace existing keys)
  • Segmentation fault from allocating zero-sized struct.
  • Segmentation fault from serialising zero-sized array.
  • Assertion failure from type-checking in invalid programs.
  • Make the offset parameter of String.rfind inclusive of the given index.

Added

  • 32-bit ARM port.
  • 32-bit X86 port.
  • Embedded fields.
  • C-style structs.
  • Maybe[A] to encode C-style structs that aren't present.
  • OpenFile and CreateFile primitives to return well-typed errors.
  • @fowles: String.join
  • Array slice, permute, reverse.
  • Pooltrack and telemetry runtime builds.
  • ifdef expressions for platform dependent code.
  • User specified build flags.
  • Pure Pony implementation of 128 bit integer maths for 32-bit platforms.
  • UDP broadcast for both IPv4 and IPv6.
  • Message batching.
  • Case functions.
  • Timeouts for PonyTest long tests.
  • contains() method on HashMap
  • contains() method on HashSet
  • Support for empty sections in ini parsing.
  • --verbose,-V option for compiler informational messages.
  • Logger package
  • ArrayValues.rewind() method.
  • Nanos primitive in time package.
  • Persistent package, with List and Map
  • Custom chunk size for Stdin.
  • Itertools package
  • TCPConnection.expect
  • TCPConnectionNotify.sentv
  • HashMap.get_or_else
  • ponytest TestHelper.expect_action, complete_action, and fail_action
  • ponytest TestHelper.dispose_when_done
  • copysign and infinite for floating point numbers
  • contains() method on Array
  • GC tracing with acquire/release semantics.
  • pony_alloc_msg_size runtime function
  • net/WriteBuffer
  • serialise package.
  • optional parameter in json objects, arrays, and doc to turn on pretty printing
  • DoNotOptimise primitive
  • compact method for Array and String
  • String.push_utf32() method.
  • Allow the use of a LLVM bitcode file for the runtime instead of a static library.
  • add iterators to persistent/Map (keys(), values(), and pairs())
  • add notification of terminal resize
  • trim and trim_in_place methods for Array and String.
  • is_null_terminated and null_terminated methods for String.
  • from_iso_array constructor on String.
  • Sort primitive
  • PonyBench package

Changed

  • Interfaces are invariant if they are structurally equivalent.
  • Improved type checking with configuration management.
  • Improved realloc behaviour after heap_alloc_large.
  • Set-based upper bounds for generic constraints.
  • Moved the position of a default capability in a type specification.
  • Replaced '&' with 'addressof' for taking address in FFI calls.
  • @jemc: use half-open ranges for String operations.
  • Improved TCPConnection with a dynamically size of buffers
  • Drop dynamic LTO detection in the build system.
  • Parameterized Array.find and Array.rfind with a comparator.
  • this-> adapted types check match on the upper bounds.
  • Renamed identityof to digestof.
  • Moved and renamed net/Buffer to buffered/Reader and buffered/Writer.
  • Print compiler error and info messages to stderr instead of stdout.
  • Hashmap.concat now returns this rather than None
  • Only allow single, internal underscores in numeric literals.
  • ponyc --version now includes the build type (debug/release) in its output.
  • Strings now grow and shrink geometrically.
  • Embedded fields can now be constructed from complex expressions containing constructors
  • Sendable members of non-sendable objects can be used in recover expressions in certain cases.
  • ProcessNotify functions are passed a reference to ProcessMonitor.
  • The constructor of Options doesn't require an Env anymore but just a simple String array.

[0.2.1] - 2015-10-06

Fixed

  • Check shallow marking in heap_ismarked.

[0.2.0] - 2015-10-05

Fixed

  • Handle internal pointers and recursion.
  • Allow recursing through non-pony alloc'd memory in GC.
  • Set an LLVM triple with no version stamp to prevent XCode 7 link warnings.
  • use "path:" adds link paths only for the current build.
  • Handle null characters in Strings and string literals.

Added

  • Platform indicators for LP64, LLP64, ILP32.
  • Compile and link with LTO.
  • Use Pointer[None] for void* in FFI.
  • Root authority capability in Env.
  • Fine grained capabilities for files and directories.
  • Use Capsicum on FreeBSD.
  • Apply can be sugared with type arguments.
  • Search pony_packages directories for use commands.
  • Buffer peek functions (@jemc)
  • collections/Ring
  • Promises package

Changed

  • Renamed some builtin types.
  • abs() now returns an unsigned integer.
  • Improved memory allocation speed.
  • Reduced memory pressure.
  • Scheduler steals when only the CD is on a scheduler thread queue.
  • use commands searches ../pony_packages recursively similar to Node.js
  • Readline uses a Promise to handle async responses.

[0.1.7] - 2015-06-18

Fixed

  • Viewpoint adaptation with a type expression on the left-hand side.

Added

  • Pass Pony function pointers to C FFI.

Changed

  • The pony runtime now uses the same option parser as ponyc. A pony program exits if bad runtime args are provided.
  • Output directory now created if it doesn't already exist.
  • Improvements to automatic documentation generator.
  • Union type for String.compare result.

[0.1.6] - 2015-06-15

Fixed

  • ANSI stripping on zero length writes to stdout/stderr.
  • More OS X 10.8 compatibility.
  • SSL multithreading support.
  • Nested tuple code generation.
  • Only finalise blocked actors when detecting quiescence.
  • URL parse error.

Added

  • Automatic documentation generator in the compiler.
  • FreeBSD 10.1 support, thanks to Ben Laurie.
  • Allow method calls on union types when the signatures are compatible.
  • Subtyping of polymorphic methods.
  • Primitive _init and _final for C library initialisation and shutdown.
  • collections.Flags
  • lambda sugar.

Changed

  • Separated the FFI '&' operator from the identityof operator.
  • Operators on Set and Map are now persistent.
  • use "file:..." becomes use "package:..."
  • Allow "s at the end of triple-quoted strings.
  • Allow behaviours and functions to be subtypes of each other.

[0.1.5] - 2015-05-15

Fixed

  • OS X 10.8 compatibility.

[0.1.4] - 2015-05-14

Fixed

  • Check whether parameters to behaviours, actor constructors and isolated constructors are sendable after flattening, to allow sendable type parameters to be used as parameters.
  • Eliminate spurious "control expression" errors when another compile error has occurred.
  • Handle circular package dependencies.
  • Fixed ponyc options issue related to named long options with no arguments
  • Cycle detector view_t structures are now reference counted.

Added

  • ANSI terminal handling on all platforms, including Windows.
  • The lexer now allows underscore characters in numeric literals. This allows long numeric literals to be broken up for human readability.
  • "Did you mean?" support when the compiler doesn't recognise a name but something similar is in scope.
  • Garbage collection and cycle detection parameters can now be set from the command line.
  • Added a FileStream wrapper to the file package.

Changed

  • When using a package without a package identifier (eg. use "foo" as opposed to use f = "foo"), a Main type in the package will not be imported. This allows all packages to include unit tests that are run from their included Main actor without causing name conflicts.
  • The for sugar now wraps the next() call in a try expression that does a continue if an error is raised.