./lang/nim, The Nim programming language

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Branch: CURRENT, Version: 1.4.8, Package name: nim-1.4.8, Maintainer: cfkoch

Nim (formerly known as "Nimrod") is a statically typed, imperative
programming language that tries to give the programmer ultimate power
without compromises on runtime efficiency. This means it focuses on
compile-time mechanisms in all their various forms.

Beneath a nice infix/indentation based syntax with a powerful (AST based,
hygienic) macro system lies a semantic model that supports a soft realtime
GC on thread local heaps. Asynchronous message passing is used between
threads, so no "stop the world" mechanism is necessary. An unsafe shared
memory heap is also provided for the increased efficiency that results from
that model.


Required to run:
[sysutils/coreutils]

Required to build:
[pkgtools/cwrappers]

Master sites:

Filesize: 4674.18 KB

Version history: (Expand)


CVS history: (Expand)


   2021-10-26 12:51:59 by Nia Alarie | Files touched by this commit (260)
Log message:
lang: Replace RMD160 checksums with BLAKE2s checksums

All checksums have been double-checked against existing RMD160 and
SHA512 hashes

The following distfiles could not be fetched (possibly fetched
conditionally?):

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   2021-10-07 16:21:17 by Nia Alarie | Files touched by this commit (282)
Log message:
lang: Remove SHA1 hashes for distfiles
   2021-05-30 15:45:46 by Ryo ONODERA | Files touched by this commit (2) | Package updated
Log message:
nim: Update to 1.4.6

Changelog:
Version 1.4.8 released

25 May 2021 The Nim Team

The Nim team is happy to announce version 1.4.8, our fourth patch release for
Nim 1.4.

Version 1.4.8 is a result of one month of hard work, and it contains 23 commits
, fixing the most important bugs and bringing additional improvements to our
ORC memory management.

We would recommend to all of our users to upgrade and use version 1.4.8.

Release highlights

  * Just like our devel branch, v1.4.8 is built using csources_v1, which means
    you can use it on Apple M1 chips.
  * Version 1.4.6 triggered some false positives with several antivirus
    softwares. Based on our testing, this shouldn't happen with v1.4.8.
  * Now you can use -d:release and -d:danger in your config files, no need to
    manually write these flags on the command line anymore.
  * Additional improvements to our ORC memory management. Use --gc:orc to
    compile your projects with it.

Version 1.4.6

Version 1.4.6 is our third patch release for Nim 1.4 and it brings several
fixes since version 1.4.4, released two month ago.

Bugfixes since 1.4.4

  * Fixed GC crash resulting from inlining of the memory allocation procs (link
    )
  * Fixed isolate doesn't work (#17264)
  * Fixed regression since 1.4.2: vm crash with lists.SinglyLinkedRing (#
    16384)
  * Fixed Generics sandwiched between two modules don't mixin their
    scope symbols properly (#11225)
  * Fixed json.% raises Defect for uint64 (#17383)
  * Fixed memory allocation during {.global.} init breaks GC (#17085)
  * Fixed incorrect raises effect for $(NimNode) (#17454)

Full changelog since v1.4.4 contains 19 commits.
   2021-03-01 14:12:56 by Ryo ONODERA | Files touched by this commit (2) | Package updated
Log message:
nim: Update to 1.4.4

Changelog:
Bugfixes since 1.4.2

    Fixed "-d:fulldebug switch does not compile with gc:arc" (#16214)
    Fixed "Strange behavior when calling into Nim" (#16249)
    Fixed "VC++ winnt.h fatal error "No Target Architecture" in \ 
stdlib_io." (#14259)
    Fixed "osLastError may randomly raise defect and crash" (#16359)
    Fixed "& shows as & in docs" (#16364)
    Fixed "gc:arc - SIGSEGV for rawAlloc on windows" (#16365)
    Fixed "generic importc proc's don't work (breaking lots of vmops procs \ 
for js)" (#16428)
    Fixed "[ARC] Compiler error with a closure proc in a macro " (#15043)
    Fixed "genericAssignAux runtime error" (#16706)
    Fixed "Concept: codegen ignores parameter passing" (#16897)
    Fixed "{.push exportc.} interacts with anonymous functions" (#16967)
    Fixed "ARC exports a dangerous 'dispose' proc" (#17003)
    Fixed "Cursor inference leading to corrupt memory with a tuple" \ 
(#17033)
    Fixed "toOpenArray doesn't work in VM; toOpenArray with var openArray \ 
doesn't work in nim js" (#15952)
    Fixed "memory allocation during {.global.} init breaks GC" (#17085)
   2020-12-07 13:40:44 by Ryo ONODERA | Files touched by this commit (2) | Package updated
Log message:
nim: Update to 1.4.2

Changelog:
Bugfixes

  * Fixed "dbQuote additional escape regression" (#15560)
  * Fixed "[ARC] Finalizer with a do notation proc crashes the compiler" (#
    15599)
  * Fixed "./koch drnim: git checkout ... fails (invalid git hash)" \ 
(#15639)
  * Fixed "Testament does not check memory leaks with Valgrind" (#15631)
  * Fixed "Templates can't be made discardable" (#13609)
  * Fixed "Taking a view of var openArray[T] generates broken C" (#15652)
  * Fixed "Regression: parsecsv from newGZFileStream" (#12410)
  * Fixed "NimVM generic procs that take anonymous tuples gives nil access
    error." (#15662)
  * Fixed "net.$ is not printing a zero group smaller than the compressed
    group" (#15698)
  * Fixed "map, mapIt, filter cause a segfault at compile time in a static
    block when passed an inline function" (#15363)
  * Fixed "const Table losing object variant data at runtime" (#8007)
  * Fixed "regression(1.0.2 => 1.0.4) VM register messed up depending on
    unrelated context" (#15704)
  * Fixed "VM: nil procvar treated as not nil in VM, causing FieldDefect and
    further errors" (#15595)
  * Fixed "ICE with sequtils + algorithm (mapIt, sortedByIt) + json " \ 
(#10456
    )
  * Fixed "Size of packed enum of byte is 2 byte; if highest value is 0xFF but
    should be 1" (#15752)
  * Fixed "OrderedTable.== throws error on empty table: unhandled exception:
    index out of bounds..." (#15750)
  * Fixed "strictFunc: system & is considered to have side effects under arc
    mode" (#15756)
  * Fixed "JSON parsing fails for integer values greater than BiggestInt.max
    " (#15413)
  * Fixed "yet another cmpIgnoreStyle bug" (#7686)
  * Fixed "1 mod 0 gives NaN with JS backend" (#7127)
  * Fixed "Discarding a dom.Node raises a javascript error" (#15638)
  * Fixed "Regression: overriding streams.write(T) does not work on 0.19
    anymore" (#9091)
  * Fixed "Converter is applied to the first parameter of operator instead of
    last" (#9165)
  * Fixed "Recursion using concepts crashes compiler" (#8012)
  * Fixed "Union types in javascript" (#7658)
  * Fixed "Ambiguous call error when it's not" (#7416)
  * Fixed "Codegen does not like shadowed parameter" (#7374)
  * Fixed "incomplete code generation when using a compile time variable at
    run time (undeclared identifier)" (#6036)
  * Fixed "Compiler doesn't warn when using {.global.} and {.threadvar.} on
    JS backend despite it not working" (#11625)
  * Fixed "Discarding output with nested for/if statements" (#14227)
  * Fixed "regression: docgen drops enum doc comments" (#15702)
  * Fixed "regression(1.0): codegen error with locals" (#12682)
  * Fixed "[JS] $ on an enum in an if expression causes bad codegen" \ 
(#15651)
  * Fixed "Error upon conditional declaration inside a template" (#3670)
  * Fixed "Compiler crash when a value in enum is converted to the enum itself
    " (#15145)
  * Fixed "[AssertionDefect] json.to(type) on object with Option[ref object]
    field" (#15815)
  * Fixed "Crash with const tuple unpacking" (#15717)
  * Fixed "JS codegen can produce extreme switch statements with case a of
    range" (#8821)
  * Fixed "cannot capture result, produces unhelpful eror" (#15594)
  * Fixed "Code that work in 1.2.6, but not 1.4.0" (#15804)
  * Fixed "C-backend link failure for let with {.global, compileTime.} pragma
    " (#12640)
  * Fixed "json.to crashes (SIGSEGV) when object attribute is a JsonNode and
    the key is not there" (#15835)
  * Fixed "Cannot use custom pragmas in ref object" (#8457)
  * Fixed "GC_ref on empty string fails with [GCASSERT] incRef: \ 
interiorPtr"
    (#10307)
  * Fixed "VM segmentation faults with swap" (#15463)
  * Fixed "$(s: WideCString) changes result to repr on -gc:arc" (#15663)
  * Fixed "unittest.check rejects with a type error, code that Nim otherwise
    accepts" (#15618)
  * Fixed "Type mismatch on init of static[T] object with T being a static[U]
    " (#11142)
  * Fixed "sizeof array with static N crash in type section" (#12636)
  * Fixed "-gc:arc segfaults when returning result from a proc" (#15609)
  * Fixed "Error: 'newHttpHeaders' can have side effects" (#15851)
  * Fixed "template that overloads [] accessor does not compile" (#8829)
  * Fixed "Simple type definition crash" (#12897)
  * Fixed "mapIt from sequtils not working in {.push compile_time.} \ 
context"
    (#12558)
  * Fixed "-gc:arc/orc Error: unhandled exception: 'sym' is not accessible
    using discriminant 'kind' of type 'TNode' [FieldDefect]" (#15707)
  * Fixed "incorrect type inference with static: Error: ordinal type expected
    " (#15858)
  * Fixed "constructor causes SIGBUS if a destroy is defined" (#14601)
  * Fixed "internal error: getTypeDescAux(tyOr) on sink UnionType \ 
argument" (
    #15825)
  * Fixed "Console apps in Windows can rise OSError" (#15874)
  * Fixed "nim doc cannot grok IOSelectorsException" (#12471)
  * Fixed "Method dispatch silently breaks on non-ref objects" (#4318)
  * Fixed "Cannot take the compile-time sizeof Atomic types" (#12726)
  * Fixed "Setting subscript index of cstring is allowed and generates bad
    code" (#14157)
  * Fixed "Compiler crash using if as an expression with a noreturn \ 
branch" (
    #15909)
  * Fixed "docgen fatal: result[0].kind == nkSym [AssertionDefect]" \ 
(#15916)
  * Fixed "Iterator for sharedlist won't iterate all items." (#15941)
  * Fixed "Embedded templates with iterators fails to compile" (#2771)
  * Fixed "C++ Atomics in union: ::::::field with constructor not allowed in
    anonymous aggregate" ([#13062](https://github.com/nim-lang/Nim/issues/
    13062))
  * Fixed "memory corruption in tmarshall.nim" (#9754)
  * Fixed "JS backend doesn't handle float->int type conversion " \ 
(#8404)
  * Fixed "The "try except" not work when the "OSError: Too \ 
many open files
    " error occurs!" (#15925)
  * Fixed "lent gives wrong results with -d:release" (#14578)
  * Fixed "backticks : Using reserved keywords as identifiers is not
    documented" (#15806)
  * Fixed "backticks : Using reserved keywords as identifiers is not
    documented" (#15806)
  * Fixed "backticks : Using reserved keywords as identifiers is not
    documented" (#15806)
  * Fixed "backticks : Using reserved keywords as identifiers is not
    documented" (#15806)
  * Fixed "Program SIGSEGV when using '-gc:orc'" (#15753)
  * Fixed "Assignment to Option[T] doesn't call destructor on existing
    contained value" (#15910)
  * Fixed "In for loop _ is accessible" (#15972)
  * Fixed "Pragma codegenDecl doesn't work inside iterators" (#6497)
  * Fixed "nim js --gc:arc gives bad error: undeclared identifier: '+!'" (#
    16033)
  * Fixed "create a new function definitions got Internal error: environment
    misses:" (#14847)
  * Fixed "Nim emits #line 0 C preprocessor directives with -debugger:native,
    with ICE in gcc-10" (#15942)
  * Fixed "Serializing and deserializing a proc SIGSEV's" (#16022)
  * Fixed "Small tutorial error" (#16047)
  * Fixed "lent codegen error for c++ (works with c,js,vm)" (#15958)
  * Fixed "sink var/var sink both accepted; sink var leads to bad codegen and
    strange behavior" (#15671)
  * Fixed "tfuturevar fails when activated" (#9695)
  * Fixed "db_sqlite: Error: undeclared field: 'untypedLen'" (#16080)
  * Fixed "xmlparser removes significant white space" (#14056)
  * Fixed "nre.escapeRe is not gcsafe" (#16103)
  * Fixed "macros.getImpl still return incorrect AST for Sym \ 
"XXX:ObjectType
    "" (#16110)
  * Fixed ""Error: internal error: genRecordFieldAux" - in the \ 
"version-1-4
    " branch" (#16069)
  * Fixed "Tracking memory leaks under ORC (mostly with async)" (#15076)
  * Fixed "Const seq into sink arg: =copy operator not found" (#16120)
  * Fixed "Copying of a sink parameter into a variable not allowed" \ 
(#16119)
  * Fixed "Memleak in AsyncHttpServer with arc/orc" (#16154)
   2020-10-22 12:54:48 by Nikita | Files touched by this commit (3) | Package updated
Log message:
nim: Update to 1.4.0

Changelog extracted from \ 
https://nim-lang.org/blog/2020/10/16/ve … eased.html

Standard library additions and changes

    Added some enhancements to std/jsonutils module.
        Added a possibility to deserialize JSON arrays directly to
        HashSet and OrderedSet types and respectively to serialize
        those types to JSON arrays via jsonutils.fromJson and
        jsonutils.toJson procedures.
        Added a possibility to deserialize JSON null objects to Nim
        option objects and respectively to serialize Nim option object
        to JSON object if isSome or to JSON null object if isNone via
        jsonutils.fromJson and jsonutils.toJson procedures.
        Added a Joptions parameter to jsonutils.fromJson currently
        containing two boolean options allowExtraKeys and
        allowMissingKeys.
            If allowExtraKeys is true Nim’s object to which the JSON
            is parsed is not required to have a field for every JSON
            key.
            If allowMissingKeys is true Nim’s object to which JSON is
            parsed is allowed to have fields without corresponding
            JSON keys.
    Added bindParams, bindParam to db_sqlite for binding parameters
    into a SqlPrepared statement.
    Added tryInsert,insert procs to db_* libs which accept primary key
    column name.
    Added xmltree.newVerbatimText support create style’s,script’s
    text.
    uri module now implements RFC-2397.
    Added DOM Parser to the dom module for the JavaScript target.
    The default hash for Ordinal has changed to something more
    bit-scrambling. import hashes; proc hash(x: myInt): Hash =
    hashIdentity(x) recovers the old one in an instantiation context
    while -d:nimIntHash1 recovers it globally.
    deques.peekFirst and deques.peekLast now have var Deque[T] -> var T
    overloads.

    File handles created from high-level abstractions in the stdlib
    will no longer be inherited by child processes. In particular,
    these modules are affected: asyncdispatch, asyncnet, system,
    nativesockets, net and selectors.

    For asyncdispatch, asyncnet, net and nativesockets, an inheritable
    flag has been added to all procs that create sockets, allowing the
    user to control whether the resulting socket is inheritable. This
    flag is provided to ease the writing of multi-process servers,
    where sockets inheritance is desired.

    For a transition period, define nimInheritHandles to enable file
    handle inheritance by default. This flag does not affect the
    selectors module due to the differing semantics between operating
    systems.

    asyncdispatch.setInheritable, system.setInheritable and \ 
nativesockets.setInheritable are also introduced for setting file handle or \ 
socket inheritance. Not all platforms have these procs defined.

    The file descriptors created for internal bookkeeping by
    ioselector_kqueue and ioselector_epoll will no longer be leaked to
    child processes.
    strutils.formatFloat with precision = 0 has been restored to the
    version 1 behaviour that produces a trailing dot,
    e.g. formatFloat(3.14159, precision = 0) is now 3., not 3.

    Added commonPrefixLen to critbits.

    relativePath(rel, abs) and relativePath(abs, rel) used to silently
    give wrong results (see #13222); instead they now use
    getCurrentDir to resolve those cases, and this can now throw in
    edge cases where getCurrentDir throws. relativePath also now works
    for js with -d:nodejs.

    JavaScript and NimScript standard library changes:
    streams.StringStream is now supported in JavaScript, with the
    limitation that any buffer pointers used must be castable to ptr
    string, any incompatible pointer type will not work. The lexbase
    and streams modules used to fail to compile on NimScript due to a
    bug, but this has been fixed.

    The following modules now compile on both JS and NimScript:
    parsecsv, parsecfg, parsesql, xmlparser, htmlparser and
    ropes. Additionally supported for JS is cstrutils.startsWith and
    cstrutils.endsWith, for NimScript: json, parsejson, strtabs and
    unidecode.

    Added streams.readStr and streams.peekStr overloads to accept an
    existing string to modify, which avoids memory allocations,
    similar to streams.readLine (#13857).

    Added high-level asyncnet.sendTo and asyncnet.recvFrom UDP functionality.

    dollars.$ now works for unsigned ints with nim js.

    Improvements to the bitops module, including bitslices,
    non-mutating versions of the original masking functions,
    mask/masked, and varargs support for bitand, bitor, and bitxor.

    sugar.=> and sugar.-> changes: Previously (x, y: int) was
    transformed into (x: auto, y: int), it now becomes (x: int, y:
    int) for consistency with regular proc definitions (although you
    cannot use semicolons).

    Pragmas and using a name are now allowed on the lefthand side of =>.
    Here is an example of these changes:

    import sugar

    foo(x, y: int) {.noSideEffect.} => x + y

    # is transformed into

    proc foo(x: int, y: int): auto {.noSideEffect.} = x + y

    The fields of times.DateTime are now private, and are accessed
    with getters and deprecated setters.

    The times module now handles the default value for DateTime more
    consistently. Most procs raise an assertion error when given an
    uninitialized DateTime, the exceptions are == and $ (which returns
    "Uninitialized DateTime"). The proc times.isInitialized has been
    added which can be used to check if a DateTime has been
    initialized.

    Fix a bug where calling close on io streams in osproc.startProcess was a \ 
noop and led to hangs if a process had both reads from stdin and writes (e.g. to \ 
stdout).
    The callback that is passed to system.onThreadDestruction must now be \ 
.raises: [].

    The callback that is assigned to system.onUnhandledException must now be .gcsafe.

    osproc.execCmdEx now takes an optional input for stdin, workingDir and env \ 
parameters.

    Added a ssl_config module containing lists of secure ciphers as recommended \ 
by Mozilla OpSec

    net.newContext now defaults to the list of ciphers targeting “Intermediate \ 
compatibility” per Mozilla’s recommendation instead of ALL. This change \ 
should protect users from the use of weak and insecure ciphers while still \ 
provides adequate compatibility with the majority of the Internet.

    A new module std/jsonutils with hookable jsonTo,toJson,fromJson operations \ 
for json serialization/deserialization of custom types was added.
    A new proc heapqueue.find[T](heap: HeapQueue[T], x: T): int to get index of \ 
element x was added.
    Added rstgen.rstToLatex a convenience proc for renderRstToOut and \ 
initRstGenerator.
    Added os.normalizeExe.
    macros.newLit now preserves named vs unnamed tuples.
    Added random.gauss, that uses the ratio of uniforms method of sampling from \ 
a Gaussian distribution.
    Added typetraits.elementType to get the element type of an iterable.
    typetraits.$ changes: $(int,) is now "(int,)" instead of \ 
"(int)"; $tuple[] is now "tuple[]" instead of \ 
"tuple"; $((int, float), int) is now "((int, float), int)" \ 
instead of "(tuple of (int, float), int)"

    Added macros.extractDocCommentsAndRunnables helper.
    strformat.fmt and strformat.& support specifier =. \ 
fmt"{expr=}" now expands to fmt"expr={expr}".

    Deprecations: instead of os.existsDir use dirExists, instead of \ 
os.existsFile use fileExists.
    Added the jsre module, Regular Expressions for the JavaScript target..
    Made maxLines argument Positive in logging.newRollingFileLogger, because \ 
negative values will result in a new file being created for each logged line \ 
which doesn’t make sense.
    Changed log in logging to use proper log level for JavaScript, e.g. debug \ 
uses console.debug, info uses console.info, warn uses console.warn, etc.
    Tables, HashSets, SharedTables and deques don’t require anymore that the \ 
passed initial size must be a power of two - this is done internally. Proc \ 
rightSize for Tables and HashSets is deprecated, as it is not needed anymore. \ 
CountTable.inc takes val: int again not val: Positive; i.e. it can “count \ 
down” again.
    Removed deprecated symbols from macros module, some of which were deprecated \ 
already in 0.15.
    Removed sugar.distinctBase, deprecated since 0.19. Use typetraits.distinctBase.

    asyncdispatch.PDispatcher.handles is exported so that an external low-level \ 
libraries can access it.
    std/with, sugar.dup now support object field assignment expressions:

    import std/with

    type Foo = object
      x, y: int

    var foo = Foo()
    with foo:
      x = 10
      y = 20

    echo foo

    Proc math.round is no longer deprecated. The advice to use strformat instead \ 
cannot be applied to every use case. The limitations and the (lack of) \ 
reliability of round are well documented.

    Added getprotobyname to winlean. Added getProtoByname to nativesockets which \ 
returns a protocol code from the database that matches the protocol name.

    Added missing attributes and methods to dom.Navigator like deviceMemory, \ 
onLine, vibrate(), etc.
    Added strutils.indentation and strutils.dedent which enable indented string \ 
literals:

    import strutils
    echo dedent """
      This
        is
          cool!
      """

    Added initUri(isIpv6: bool) to uri module, now uri supports parsing ipv6 \ 
hostname.

    Added readLines(p: Process) to osproc.
    Added the below toX procs for collections. The usage is similar to procs \ 
such as sets.toHashSet and tables.toTable. Previously, it was necessary to \ 
create the respective empty collection and add items manually.
        critbits.toCritBitTree, which creates a CritBitTree from an openArray of \ 
items or an openArray of pairs.
        deques.toDeque, which creates a Deque from an openArray.
        heapqueue.toHeapQueue, which creates a HeapQueue from an openArray.
        intsets.toIntSet, which creates an IntSet from an openArray.

    Added progressInterval argument to asyncftpclient.newAsyncFtpClient to \ 
control the interval at which progress callbacks are called.
    Added os.copyFileToDir.

Language changes

    The =destroy hook no longer has to reset its target, as the compiler now \ 
automatically inserts wasMoved calls where needed.

    The = hook is now called =copy for clarity. The old name = is still \ 
available so there is no need to update your code. This change was backported to \ 
1.2 too so you can use the more readable =copy without loss of compatibility.

    In the newruntime it is now allowed to assign to the discriminator field \ 
without restrictions as long as the case object doesn’t have a custom \ 
destructor. The discriminator value doesn’t have to be a constant either. If \ 
you have a custom destructor for a case object and you do want to freely assign \ 
discriminator fields, it is recommended to refactor the object into 2 objects \ 
like this:

    type
      MyObj = object
        case kind: bool
        of true: y: ptr UncheckedArray[float]
        of false: z: seq[int]

    proc `=destroy`(x: MyObj) =
      if x.kind and x.y != nil:
        deallocShared(x.y)

    Refactor into:

    type
      MySubObj = object
        val: ptr UncheckedArray[float]
      MyObj = object
        case kind: bool
        of true: y: MySubObj
        of false: z: seq[int]

    proc `=destroy`(x: MySubObj) =
      if x.val != nil:
        deallocShared(x.val)

    getImpl on enum type symbols now returns field syms instead of idents. This \ 
helps with writing typed macros. The old behavior for backwards compatibility \ 
can be restored with --useVersion:1.0.
    The typed AST for proc headers will now have the arguments be syms instead \ 
of idents. This helps with writing typed macros. The old behaviour for backwards \ 
compatibility can be restored with --useVersion:1.0.
    let statements can now be used without a value if declared with \ 
importc/importcpp/importjs/importobjc.
    The keyword from is now usable as an operator.
    Exceptions inheriting from system.Defect are no longer tracked with the \ 
.raises: [] exception tracking mechanism. This is more consistent with the \ 
built-in operations. The following always used to compile (and still does):

    proc mydiv(a, b): int {.raises: [].} =
      a div b # can raise an DivByZeroDefect

    Now also this compiles:

    proc mydiv(a, b): int {.raises: [].} =
      if b == 0: raise newException(DivByZeroDefect, "division by zero")
      else: result = a div b

    The reason for this is that DivByZeroDefect inherits from Defect and with \ 
--panics:on Defects become unrecoverable errors.
    Added the thiscall calling convention as specified by Microsoft, mostly for \ 
hooking purposes.
    Deprecated the {.unroll.} pragma, because it was always ignored by the \ 
compiler anyway.
    Removed the deprecated strutils.isNilOrWhitespace.
    Removed the deprecated sharedtables.initSharedTable.
    Removed the deprecated asyncdispatch.newAsyncNativeSocket.

    Removed the deprecated dom.releaseEvents and dom.captureEvents.

    Removed sharedlists.initSharedList, was deprecated and produces undefined \ 
behaviour.

    There is a new experimental feature called “strictFuncs” which makes the \ 
definition of .noSideEffect stricter. See here for more information.

    “for-loop macros” (see the manual) are no longer an experimental \ 
feature. In other words, you don’t have to write pragma {.experimental: \ 
"forLoopMacros".} if you want to use them.

    Added the .noalias pragma. It is mapped to C’s restrict keyword for the \ 
increased performance this keyword can enable.
    items no longer compiles with enums with holes as its behavior was error \ 
prone, see #14004.

    system.deepcopy has to be enabled explicitly for --gc:arc and --gc:orc via \ 
--deepcopy:on.
    Added the std/effecttraits module for introspection of the inferred effects. \ 
We hope this enables async macros that are precise about the possible exceptions \ 
that can be raised.
    The pragma blocks {.gcsafe.}: ... and {.noSideEffect.}: ... can now also be \ 
written as {.cast(gcsafe).}: ... and {.cast(noSideEffect).}: .... This is the \ 
new preferred way of writing these, emphasizing their unsafe nature.

Compiler changes
    Specific warnings can now be turned into errors via --warningAsError[X]:on|off.
    The define and undef pragmas have been de-deprecated.
    New command: nim r main.nim [args...] which compiles and runs main.nim, and \ 
implies --usenimcache so that the output is saved to $nimcache/main$exeExt, \ 
using the same logic as nim c -r to avoid recompilations when sources don’t \ 
change. Example:

    nim r compiler/nim.nim --help # only compiled the first time
    echo 'import os; echo getCurrentCompilerExe()' | nim r - # this works too
    nim r compiler/nim.nim --fullhelp # no recompilation
    nim r --nimcache:/tmp main # binary saved to /tmp/main

    --hint:processing is now supported and means --hint:processing:on (likewise \ 
with other hints and warnings), which is consistent with all other bool flags. \ 
(since 1.3.3).
    nim doc -r main and nim rst2html -r main now call openDefaultBrowser.
    Added the new hint --hint:msgOrigin will show where a compiler msg \ 
(hint|warning|error) was generated; this helps in particular when it’s non \ 
obvious where it came from either because multiple locations generate the same \ 
message, or because the message involves runtime formatting.
    Added the new flag --backend:js|c|cpp|objc (or -b:js etc), to change the \ 
backend; can be used with any command (e.g. nim r, doc, check etc); safe to \ 
re-assign.
    Added the new flag --doccmd:cmd to pass additional flags for \ 
runnableExamples, e.g.: --doccmd:-d:foo --threads use --doccmd:skip to skip \ 
runnableExamples and rst test snippets.
    Added the new flag --usenimcache to output binary files to nimcache.
    runnableExamples "-b:cpp -r:off": code is now supported, allowing \ 
to override how an example is compiled and run, for example to change the \ 
backend.
    nim doc now outputs under $projectPath/htmldocs when --outdir is unspecified \ 
(with or without --project); passing --project now automatically generates an \ 
index and enables search. See docgen for details.
    Removed the --oldNewlines switch.
    Removed the --laxStrings switch for mutating the internal zero terminator on \ 
strings.
    Removed the --oldast switch.
    Removed the --oldgensym switch.
    $getType(untyped) is now “untyped” instead of “expr”, \ 
$getType(typed) is now “typed” instead of “stmt”.
    Sink inference is now disabled per default and has to enabled explicitly via \ 
--sinkInference:on. Note: For the standard library sink inference remains \ 
enabled. This change is most relevant for the --gc:arc, --gc:orc memory \ 
management modes.

Tool changes
    nimsuggest now returns both the forward declaration and the implementation \ 
location upon a def query. Previously the behavior was to return the forward \ 
declaration only.

Bugfixes
    Fixed “repr() not available for uint{,8,16,32,64} under –gc:arc” (#13872)
    Fixed “Critical: 1 completed Future, multiple await: Only 1 await will be \ 
awakened (the last one)” (#13889)
    Fixed “crash on openarray interator with argument in stmtListExpr” (#13739)
    Fixed “Some compilers on Windows don’t work” (#13910)
    Fixed “httpclient hangs if it recieves an HTTP 204 (No Content)” (#13894)
    Fixed ““distinct uint64” type corruption on 32-bit, when using \ 
{.borrow.} operators” (#13902)
    Fixed “Regression: impossible to use typed pragmas with proc types” (#13909)
    Fixed “openssl wrapper corrupts stack on OpenSSL 1.1.1f + Android” (#13903)
    Fixed “C compile error with –gc:arc on version 1.2.0 “unknown type \ 
name ‘TGenericSeq’” (#13863)
    Fixed “var return type for proc doesn’t work at c++ backend” (#13848)
    Fixed “TimeFormat() should raise an error but craches at compilation \ 
time” (#12864)
    Fixed “gc:arc cannot fully support threadpool with FlowVar” (#13781)
    Fixed “simple ‘var openarray[char]’ assignment crash when the \ 
openarray source is a local string and using gc:arc” (#14003)
    Fixed “Cant use expressions with when in type sections.” (#14007)
    Fixed “for a in MyEnum gives incorrect results with enum with holes” (#14001)
    Fixed “Trivial crash” (#12741)
    Fixed “Enum with holes cannot be used as Table index” (#12834)
    Fixed “spawn proc that uses typedesc crashes the compiler” (#14014)
    Fixed “Docs Search Results box styling is not Dark Mode Friendly” (#13972)
    Fixed “–gc:arc -d:useSysAssert undeclared identifier cstderr with \ 
newSeq” (#14038)
    Fixed “issues in the manual” (#12486)
    Fixed “Annoying warning: inherit from a more precise exception type like \ 
ValueError, IOError or OSError [InheritFromException]” (#14052)
    Fixed “relativePath(“foo”, “/”) and relativePath(“/”, \ 
“foo”) is wrong” (#13222)
    Fixed “[regression] parseEnum does not work anymore for enums with \ 
holes” (#14030)
    Fixed “Exception types in the stdlib should inherit from CatchableError or \ 
Defect, not Exception” (#10288)
    Fixed “Make debugSend and debugRecv procs public in smtp.nim” (#12189)
    Fixed “xmltree need add raw text, when add style element” (#14064)
    Fixed “raises requirement does not propagate to derived methods” (#8481)
    Fixed “tests/stdlib/tgetaddrinfo.nim fails on NetBSD” (#14091)
    Fixed “tests/niminaction/Chapter8/sdl/sdl_test.nim fails on NetBSD” (#14088)
    Fixed “Incorrect escape sequence for example in jsffi library \ 
documentation” (#14110)
    Fixed “HCR: Can not link exported const, in external library” (#13915)
    Fixed “Cannot import std/unidecode” (#14112)
    Fixed “macOS: dsymutil should not be called on static libraries” (#14132)
    Fixed “nim jsondoc -o:doc.json filename.nim fails when sequences without a \ 
type are used” (#14066)
    Fixed “algorithm.sortedByIt template corrupts tuple input under \ 
–gc:arc” (#14079)
    Fixed “Invalid C code with lvalue conversion” (#14160)
    Fixed “strformat: doc example fails” (#14054)
    Fixed “Nim doc fail to run for nim 1.2.0 (nim 1.0.4 is ok)” (#13986)
    Fixed “Exception when converting csize to clong” (#13698)
    Fixed “[Documentation] overloading using named arguments works but is not \ 
documented” (#11932)
    Fixed “import os + use of \ 
existsDir/dirExists/existsFile/fileExists/findExe in config.nims causes \ 
“ambiguous call’ error” (#14142)
    Fixed “import os + use of \ 
existsDir/dirExists/existsFile/fileExists/findExe in config.nims causes \ 
“ambiguous call’ error” (#14142)
    Fixed “runnableExamples doc gen crashes compiler with except Exception as \ 
e syntax” (#14177)
    Fixed “[ARC] Segfault with cyclic references (?)” (#14159)
    Fixed “Semcheck regression when accessing a static parameter in proc” \ 
(#14136)
    Fixed “iterator walkDir doesn’t work with -d:useWinAnsi” (#14201)
    Fixed “cas is wrong for tcc” (#14151)
    Fixed “proc execCmdEx doesn’t work with -d:useWinAnsi” (#14203)
    Fixed “Use -d:nimEmulateOverflowChecks by default?” (#14209)
    Fixed “Old sequences with destructor objects bug” (#14217)
    Fixed “[ARC] ICE when changing the discriminant of a return value” (#14244)
    Fixed “[ARC] ICE with static objects” (#14236)
    Fixed “[ARC] “internal error: environment misses: a” in a finalizer” \ 
(#14243)
    Fixed “[ARC] compile failure using repr with object containing ref \ 
seq[string]” (#14270)
    Fixed “[ARC] implicit move on last use happening on non-last use” (#14269)
    Fixed “[ARC] Compiler crash with a recursive non-ref object variant” (#14294)
    Fixed “htmlparser.parseHtml behaves differently using –gc:arc or \ 
–gc:orc” (#13946)
    Fixed “Invalid return value of openProcess is NULL rather than \ 
INVALID_HANDLE_VALUE(-1) in windows” (#14289)
    Fixed “ARC codegen bug with inline iterators” (#14219)
    Fixed “Building koch on OpenBSD fails unless the Nim directory is in \ 
$PATH” (#13758)
    Fixed “[gc:arc] case object assignment SIGSEGV: destroy not called for \ 
primitive type “ (#14312)
    Fixed “Crash when using thread and –gc:arc “ (#13881)
    Fixed “Getting “Warning: Cannot prove that ‘result’ is \ 
initialized” for an importcpp’d proc with var T return type” (#14314)
    Fixed “nim cpp -r --gc:arc segfaults on caught AssertionError” (#13071)
    Fixed “tests/async/tasyncawait.nim is recently very flaky” (#14320)
    Fixed “Documentation nonexistent quitprocs module” (#14331)
    Fixed “SIGSEV encountered when creating threads in a loop w/ –gc:arc” \ 
(#13935)
    Fixed “nim-gdb is missing from all released packages” (#13104)
    Fixed “sysAssert error with gc:arc on 3 line program” (#13862)
    Fixed “compiler error with inline async proc and pragma” (#13998)
    Fixed “[ARC] Compiler crash when adding to a seq[ref Object]” (#14333)
    Fixed “nimvm: sysFatal: unhandled exception: ‘sons’ is not accessible \ 
using discriminant ‘kind’ of type ‘TNode’ [FieldError]” (#14340)
    Fixed “[Regression] karax events are not firing “ (#14350)
    Fixed “odbcsql module has some wrong integer types” (#9771)
    Fixed “db_sqlite needs sqlPrepared” (#13559)
    Fixed “[Regression] createThread is not GC-safe” (#14370)
    Fixed “Broken example on hot code reloading” (#14380)
    Fixed “runnableExamples block with except on specified error fails with \ 
nim doc” (#12746)
    Fixed “compiler as a library: findNimStdLibCompileTime fails to find \ 
system.nim” (#12293)
    Fixed “5 bugs with importcpp exceptions” (#14369)
    Fixed “Docs shouldn’t collapse pragmas inside runnableExamples/code \ 
blocks” (#14174)
    Fixed “Bad codegen/emit for hashes.hiXorLo in some contexts.” (#14394)
    Fixed “Boehm GC does not scan thread-local storage” (#14364)
    Fixed “RVO not exception safe” (#14126)
    Fixed “runnableExamples that are only compiled” (#10731)
    Fixed “foldr raises IndexError when called on sequence” (#14404)
    Fixed “moveFile does not overwrite destination file” (#14057)
    Fixed “doc2 outputs in current work dir” (#6583)
    Fixed “[docgen] proc doc comments silently omitted after 1st \ 
runnableExamples” (#9227)
    Fixed “nim doc --project shows ‘@@/’ instead of ‘../’ for relative \ 
paths to submodules” (#14448)
    Fixed “re, nre have wrong start semantics” (#14284)
    Fixed “runnableExamples should preserve source code doc comments, strings, \ 
and (maybe) formatting” (#8871)
    Fixed “nim doc .. fails when runnableExamples uses $ [devel] \ 
[regression]” (#14485)
    Fixed “items is 20%~30% slower than iteration via an index” (#14421)
    Fixed “ARC: unreliable setLen “ (#14495)
    Fixed “lent is unsafe: after #14447 you can modify variables with \ 
“items” loop for sequences” (#14498)
    Fixed “var op = fn() wrongly gives warning ObservableStores with object of \ 
RootObj type” (#14514)
    Fixed “Compiler assertion” (#14562)
    Fixed “Can’t get ord of a value of a Range type in the JS backend “ \ 
(#14570)
    Fixed “js: can’t take addr of param (including implicitly via lent)” \ 
(#14576)
    Fixed “{.noinit.} ignored in for loop -> bad codegen for non-movable \ 
types” (#14118)
    Fixed “generic destructor gives: Error: unresolved generic parameter” \ 
(#14315)
    Fixed “Memory leak with arc gc” (#14568)
    Fixed “escape analysis broken with lent” (#14557)
    Fixed “wrapWords seems to ignore linebreaks when wrapping, leaving breaks \ 
in the wrong place” (#14579)
    Fixed “lent gives wrong results with -d:release” (#14578)
    Fixed “Nested await expressions regression: await a(await expandValue()) \ 
doesnt compile” (#14279)
    Fixed “windows CI docs fails with strange errors” (#14545)
    Fixed “[CI] tests/async/tioselectors.nim flaky test for freebsd + OSX \ 
CI” (#13166)
    Fixed “seq.setLen sometimes doesn’t zero memory” (#14655)
    Fixed “nim dump is roughly 100x slower in 1.3 versus 1.2” (#14179)
    Fixed “Regression: devel docgen cannot generate document for method” (#14691)
    Fixed “recently flaky tests/async/t7758.nim” (#14685)
    Fixed “Bind no longer working in generic procs.” (#11811)
    Fixed “The pegs module doesn’t work with generics!” (#14718)
    Fixed “Defer is not properly working for asynchronous procedures.” (#13899)
    Fixed “Add an ARC test with threads in a loop” (#14690)
    Fixed “[goto exceptions] {.noReturn.} pragma is not detected in a case \ 
expression” (#14458)
    Fixed “[exceptions:goto] C compiler error with dynlib pragma calling a \ 
proc” (#14240)
    Fixed “Cannot borrow var float64 in infix assignment” (#14440)
    Fixed “lib/pure/memfiles.nim: compilation error with –taintMode:on” \ 
(#14760)
    Fixed “newWideCString allocates a multiple of the memory needed” (#14750)
    Fixed “Nim source archive install: ‘install.sh’ fails with error: cp: \ 
cannot stat ‘bin/nim-gdb’: No such file or directory” (#14748)
    Fixed “nim cpp -r tests/exception/t9657 hangs” (#10343)
    Fixed “Detect tool fails on FreeBSD” (#14715)
    Fixed “compiler crash: findUnresolvedStatic “ (#14802)
    Fixed “seq namespace (?) regression” (#4796)
    Fixed “Possible out of bounds string access in std/colors parseColor and \ 
isColor” (#14839)
    Fixed “compile error on latest devel with orc and ssl” (#14647)
    Fixed “[minor] $ wrong for type tuple” (#13432)
    Fixed “Documentation missing on devel asyncftpclient” (#14846)
    Fixed “nimpretty is confused with a trailing comma in enum definition” \ 
(#14401)
    Fixed “Output arguments get ignored when compiling with \ 
–app:staticlib” (#12745)
    Fixed “[ARC] destructive move destroys the object too early” (#14396)
    Fixed “highlite.getNextToken() crashes if the buffer string is “echo \ 
“"”” (#14830)
    Fixed “Memory corruption with –gc:arc with a seq of objects with an \ 
empty body.” (#14472)
    Fixed “Stropped identifiers don’t work as field names in tuple \ 
literals” (#14911)
    Fixed “Please revert my commit” (#14930)
    Fixed “[ARC] C compiler error with inline iterators and imports” (#14864)
    Fixed “AsyncHttpClient segfaults with gc:orc, possibly memory \ 
corruption” (#14402)
    Fixed “[ARC] Template with a block evaluating to a GC’d value results in \ 
a compiler crash” (#14899)
    Fixed “[ARC] Weird issue with if expressions and templates” (#14900)
    Fixed “xmlparser does not compile on devel” (#14805)
    Fixed “returning lent T from a var T param gives codegen errors or \ 
SIGSEGV” (#14878)
    Fixed “[ARC] Weird issue with if expressions and templates” (#14900)
    Fixed “threads:on + gc:orc + unittest = C compiler errors” (#14865)
    Fixed “mitems, mpairs doesn’t work at compile time anymore” (#12129)
    Fixed “strange result from executing code in const expression” (#10465)
    Fixed “Same warning printed 3 times” (#11009)
    Fixed “type alias for generic typeclass doesn’t work” (#4668)
    Fixed “exceptions:goto Bug devel codegen lvalue NIM_FALSE=NIM_FALSE” (#14925)
    Fixed “the –useVersion:1.0 no longer works in devel” (#14912)
    Fixed “template declaration of iterator doesn’t compile” (#4722)
    Fixed “Compiler crash on type inheritance with static generic parameter \ 
and equality check” (#12571)
    Fixed “Nim crashes while handling a cast in async circumstances.” (#13815)
    Fixed “[ARC] Internal compiler error when calling an iterator from an \ 
inline proc “ (#14383)
    Fixed ““Cannot instantiate” error when template uses generic type” \ 
(#5926)
    Fixed “Different raises behaviour for newTerminal between Linux and \ 
Windows” (#12759)
    Fixed “Expand on a type (that defines a proc type) in error message “ (#6608)
    Fixed “unittest require quits program with an exit code of 0” (#14475)
    Fixed “Range type: Generics vs concrete type, semcheck difference.” (#8426)
    Fixed “[Macro] Type mismatch when parameter name is the same as a field” \ 
(#13253)
    Fixed “Generic instantiation failure when converting a sequence of \ 
circular generic types to strings” (#10396)
    Fixed “initOptParser ignores argument after value option with empty \ 
value.” (#13086)
    Fixed “[ARC] proc with both explicit and implicit return results in a C \ 
compiler error” (#14985)
    Fixed “Alias type forgets implicit generic params depending on order” \ 
(#14990)
    Fixed “[ARC] sequtils.insert has different behaviour between ARC/refc” \ 
(#14994)
    Fixed “The documentation for “hot code reloading” references a \ 
non-existent npm package” (#13621)
    Fixed “existsDir deprecated but breaking dir undeclared” (#15006)
    Fixed “uri.decodeUrl crashes on incorrectly formatted input” (#14082)
    Fixed “testament incorrectly reports time for tests, leading to wrong \ 
conclusions” (#14822)
    Fixed “Calling peekChar with Stream returned from osproc.outputStream \ 
generate runtime error” (#14906)
    Fixed “localPassC pragma should come after other flags” (#14194)
    Fixed ““Could not load” dynamic library at runtime because of hidden \ 
dependency” (#2408)
    Fixed “–gc:arc generate invalid code for {.global.} («nimErr_» in \ 
NIM_UNLIKELY)” (#14480)
    Fixed “Using ^ from stdlib/math along with converters gives a match for \ 
types that aren’t SomeNumber” (#15033)
    Fixed “[ARC] Weird exception behaviour from doAssertRaises” (#15026)
    Fixed “[ARC] Compiler crash declaring a finalizer proc directly in \ 
‘new’” (#15044)
    Fixed “[ARC] C compiler error when creating a var of a const seq” (#15036)
    Fixed “code with named arguments in proc of winim/com can not been \ 
compiled” (#15056)
    Fixed “javascript backend produces javascript code with syntax error in \ 
object syntax” (#14534)
    Fixed “–gc:arc should be ignored in JS mode.” (#14684)
    Fixed “arc: C compilation error with imported global code using a closure \ 
iterator” (#12990)
    Fixed “[ARC] Crash when modifying a string with mitems iterator” (#15052)
    Fixed “[ARC] SIGSEGV when calling a closure as a tuple field in a seq” \ 
(#15038)
    Fixed “pass varargs[seq[T]] to iterator give empty seq “ (#12576)
    Fixed “Compiler crashes when using string as object variant selector with \ 
else branch” (#14189)
    Fixed “JS compiler error related to implicit return and return var type” \ 
(#11354)
    Fixed “nkRecWhen causes internalAssert in semConstructFields” (#14698)
    Fixed “Memory leaks with async (closure iterators?) under ORC” (#15076)
    Fixed “strutil.insertSep() fails on negative numbers” (#11352)
    Fixed “Constructing a uint64 range on a 32-bit machine leads to incorrect \ 
codegen” (#14616)
    Fixed “heapqueue pushpop() proc doesn’t compile” (#14139)
    Fixed “[ARC] SIGSEGV when trying to swap in a literal/const string” (#15112)
    Fixed “Defer and –gc:arc” (#15071)
    Fixed “internal error: compiler/semobjconstr.nim(324, 20) example” (#15111)
    Fixed “[ARC] Sequence “disappears” with a table inside of a table with \ 
an object variant” (#15122)
    Fixed “[ARC] SIGSEGV with tuple assignment caused by cursor inference” \ 
(#15130)
    Fixed “Issue with –gc:arc at compile time” (#15129)
    Fixed “Writing an empty string to an AsyncFile raises an IndexDefect” \ 
(#15148)
    Fixed “Compiler is confused about call convention of function with nested \ 
closure” (#5688)
    Fixed “Nil check on each field fails in generic function” (#15101)
    Fixed “{.nimcall.} convention won’t avoid the creation of closures” (#8473)
    Fixed “smtp.nim(161, 40) Error: type mismatch: got <typeof(nil)> but \ 
expected ‘SslContext = void’” (#15177)
    Fixed “[strscans] scanf doesn’t match a single character with $+ if \ 
it’s the end of the string” (#15064)
    Fixed “Crash and incorrect return values when using readPasswordFromStdin \ 
on Windows.” (#15207)
    Fixed “Possible capture error with fieldPairs and genericParams” (#15221)
    Fixed “The StmtList processing of template parameters can lead to \ 
unexpected errors” (#5691)
    Fixed “[ARC] C compiler error when passing a var openArray to a sink \ 
openArray” (#15035)
    Fixed “Inconsistent unsigned -> signed RangeDefect usage across integer \ 
sizes” (#15210)
    Fixed “toHex results in RangeDefect exception when used with large \ 
uint64” (#15257)
    Fixed “Arc sink arg crash” (#15238)
    Fixed “SQL escape in db_mysql is not enough” (#15219)
    Fixed “Mixing ‘return’ with expressions is allowed in 1.2” (#15280)
    Fixed “os.getFileInfo() causes ICE with –gc:arc on Windows” (#15286)
    Fixed “[ARC] Sequence “disappears” with a table inside of a table with \ 
an object variant” (#15122)
    Fixed “Documentation regression jsre module missing” (#15183)
    Fixed “CountTable.smallest/largest() on empty table either asserts or \ 
gives bogus answer” (#15021)
    Fixed “[Regression] Parser regression” (#15305)
    Fixed “[ARC] SIGSEGV with tuple unpacking caused by cursor inference” \ 
(#15147)
    Fixed “LwIP/FreeRTOS compile error - missing SIGPIPE and more “ (#15302)
    Fixed “Memory leaks with async (closure iterators?) under ORC” (#15076)
    Fixed “Bug compiling with –gc:arg or –gc:orc” (#15325)
    Fixed “memory corruption in tmarshall.nim” (#9754)
    Fixed “typed macros break generic proc definitions” (#15326)
    Fixed “nim doc2 ignores –docSeeSrcUrl parameter” (#6071)
    Fixed “The decodeData Iterator from cgi module crash” (#15369)
    Fixed “|| iterator generates invalid code when compiling with \ 
–debugger:native” (#9710)
    Fixed “Wrong number of variables” (#15360)
    Fixed “Coercions with distinct types should traverse pointer modifiers \ 
transparently.” (#7165)
    Fixed “Error with distinct generic TableRef” (#6060)
    Fixed “Support images in nim docgen” (#6430)
    Fixed “Regression. Double sem check for procs.” (#15389)
    Fixed “uri.nim url with literal ipv6 address is printed wrong, and cannot \ 
parsed again” (#15333)
    Fixed “[ARC] Object variant gets corrupted with cursor inference” (#15361)
    Fixed “nim doc .. compiler crash (regression 0.19.6 => 1.0)” (#14474)
    Fixed “cannot borrow result; what it borrows from is potentially \ 
mutated” (#15403)
    Fixed “memory corruption for seq.add(seq) with gc:arc and d:useMalloc “ \ 
(#14983)
    Fixed “DocGen HTML output appears improperly when encountering text \ 
immediately after/before inline monospace; in some cases won’t compile” \ 
(#11537)
    Fixed “Deepcopy in arc crashes” (#15405)
    Fixed “pop pragma takes invalid input” (#15430)
    Fixed “tests/stdlib/tgetprotobyname fails on NetBSD” (#15452)
    Fixed “defer doesnt work with block, break and await” (#15243)
    Fixed “tests/stdlib/tssl failing on NetBSD” (#15493)
    Fixed “strictFuncs doesn’t seem to catch simple ref mutation” (#15508)
    Fixed “Sizeof of case object is incorrect. Showstopper” (#15516)
    Fixed “[ARC] Internal error when trying to use a parallel for loop” (#15512)
    Fixed “[ARC] Type-bound assign op is not being generated” (#15510)
    Fixed “[ARC] Crash when adding openArray proc argument to a local seq” \ 
(#15511)
    Fixed “VM: const case object gets some fields zeroed out at runtime” (#13081)
    Fixed “regression(1.2.6 => devel): VM: const case object field access \ 
gives: ‘sons’ is not accessible” (#15532)
    Fixed “Csources: huge size increase (x2.3) in 0.20” (#12027)
    Fixed “Out of date error message for GC options” (#15547)
    Fixed “dbQuote additional escape regression” (#15560)
   2020-08-10 00:11:29 by Nikita | Files touched by this commit (4) | Package updated
Log message:
nim: Update to 1.2.6

Changelog extracted from the unspecific changelog.md on the 1.2.6 tag.
Unable to get a Changelog diff for 1.2.4 and 1.2.6.

# v1.4.0 - yyyy-mm-dd

## Standard library additions and changes

  For `net` and `nativesockets`, an `inheritable` flag has been added to all
  `proc`s that create sockets, allowing the user to control whether the
  resulting socket is inheritable. This flag is provided to ease the writing of
  multi-process servers, where sockets inheritance is desired.

  For a transistion period, define `nimInheritHandles` to enable file handle
  inheritance by default. This flag does **not** affect the `selectors` module
  due to the differing semantics between operating systems.

  `system.setInheritable` and `nativesockets.setInheritable` is also introduced
  for setting file handle or socket inheritance. Not all platform have these
  `proc`s defined.

- The file descriptors created for internal bookkeeping by `ioselector_kqueue`
  and `ioselector_epoll` will no longer be leaked to child processes.

- `strutils.formatFloat` with `precision = 0` has been restored to the version
  1 behaviour that produces a trailing dot, e.g. `formatFloat(3.14159, precision \ 
= 0)`
  is now `3.`, not `3`.
- `critbits` adds `commonPrefixLen`.

- `relativePath(rel, abs)` and `relativePath(abs, rel)` used to silently give \ 
wrong results
  (see #13222); instead they now use `getCurrentDir` to resolve those cases,
  and this can now throw in edge cases where `getCurrentDir` throws.
  `relativePath` also now works for js with `-d:nodejs`.

- JavaScript and NimScript standard library changes: `streams.StringStream` is
  now supported in JavaScript, with the limitation that any buffer `pointer`s
  used must be castable to `ptr string`, any incompatible pointer type will not
  work. The `lexbase` and `streams` modules used to fail to compile on
  NimScript due to a bug, but this has been fixed.

  The following modules now compile on both JS and NimScript: `parsecsv`,
  `parsecfg`, `parsesql`, `xmlparser`, `htmlparser` and `ropes`. Additionally
  supported for JS is `cstrutils.startsWith` and `cstrutils.endsWith`, for
  NimScript: `json`, `parsejson`, `strtabs` and `unidecode`.

- Added `streams.readStr` and `streams.peekStr` overloads to
  accept an existing string to modify, which avoids memory
  allocations, similar to `streams.readLine` (#13857).

- Added high-level `asyncnet.sendTo` and `asyncnet.recvFrom`. UDP functionality.

- `paramCount` & `paramStr` are now defined in os.nim instead of \ 
nimscript.nim for nimscript/nimble.
- `dollars.$` now works for unsigned ints with `nim js`

- Improvements to the `bitops` module, including bitslices, non-mutating versions
  of the original masking functions, `mask`/`masked`, and varargs support for
  `bitand`, `bitor`, and `bitxor`.

- `sugar.=>` and `sugar.->` changes: Previously `(x, y: int)` was transformed
  into `(x: auto, y: int)`, it now becomes `(x: int, y: int)` in consistency
  with regular proc definitions (although you cannot use semicolons).

  Pragmas and using a name are now allowed on the lefthand side of `=>`. Here
  is an aggregate example of these changes:
  ```nim
  import sugar

  foo(x, y: int) {.noSideEffect.} => x + y

  # is transformed into

  proc foo(x: int, y: int): auto {.noSideEffect.} = x + y
  ```
- The fields of `times.DateTime` are now private, and are accessed with getters \ 
and deprecated setters.

- The `times` module now handles the default value for `DateTime` more \ 
consistently. Most procs raise an assertion error when given
  an uninitialized `DateTime`, the exceptions are `==` and `$` (which returns \ 
`"Uninitialized DateTime"`). The proc `times.isInitialized`
  has been added which can be used to check if a `DateTime` has been initialized.

- Fix a bug where calling `close` on io streams in osproc.startProcess was a \ 
noop and led to
  hangs if a process had both reads from stdin and writes (eg to stdout).

- The callback that is passed to `system.onThreadDestruction` must now be \ 
`.raises: []`.
- The callback that is assigned to `system.onUnhandledException` must now be \ 
`.gcsafe`.

- `osproc.execCmdEx` now takes an optional `input` for stdin, `workingDir` and `env`
  parameters.

- Added a `ssl_config` module containing lists of secure ciphers as recommended by
  [Mozilla OpSec](https://wiki.mozilla.org/Security/Server_Side_TLS)

- `net.newContext` now defaults to the list of ciphers targeting
  ["Intermediate \ 
compatibility"](https://wiki.mozilla.org/Security/Serve … mmended.29)
  per Mozilla's recommendation instead of `ALL`. This change should protect
  users from the use of weak and insecure ciphers while still provides
  adequate compatibility with the majority of the Internet.

- A new module `std/jsonutils` with hookable `jsonTo,toJson,fromJson` operations \ 
for json
  serialization/deserialization of custom types was added.

- A new proc `heapqueue.find[T](heap: HeapQueue[T], x: T): int` to get index of \ 
element ``x``
  was added.
- Added `rstgen.rstToLatex` convenience proc for `renderRstToOut` and \ 
`initRstGenerator`
  with `outLatex` output.
- Added `os.normalizeExe`, e.g.: `koch` => `./koch`.
- `macros.newLit` now preserves named vs unnamed tuples; use \ 
`-d:nimHasWorkaround14720`
  to keep old behavior.
- Added `random.gauss`, that uses the ratio of uniforms method of sampling from \ 
a Gaussian distribution.
- Added `typetraits.elementType` to get element type of an iterable.
- `typetraits.$` changes: `$(int,)` is now `"(int,)"` instead of \ 
`"(int)"`;
  `$tuple[]` is now `"tuple[]"` instead of `"tuple"`;
  `$((int, float), int)` is now `"((int, float), int)"` instead of \ 
`"(tuple of (int, float), int)"`
- Added `macros.extractDocCommentsAndRunnables` helper

- `strformat.fmt` and `strformat.&` support `= specifier`. \ 
`fmt"{expr=}"` now
  expands to `fmt"expr={expr}"`.
- deprecations: `os.existsDir` => `dirExists`, `os.existsFile` => `fileExists`

- Added `jsre` module, [Regular Expressions for the JavaScript \ 
target.](https://developer.mozilla.org/en-US/doc … xpressions)
- Made `maxLines` argument `Positive` in `logging.newRollingFileLogger`,
  because negative values will result in a new file being created for each logged
  line which doesn't make sense.
- Changed `log` in `logging` to use proper log level on JavaScript target,
  e.g. `debug` uses `console.debug`, `info` uses `console.info`, `warn` uses \ 
`console.warn`, etc.
- Tables, HashSets, SharedTables and deques don't require anymore that the passed
  initial size must be a power of two - this is done internally.
  Proc `rightSize` for Tables and HashSets is deprecated, as it is not needed \ 
anymore.
  `CountTable.inc` takes `val: int` again not `val: Positive`; I.e. it can \ 
"count down" again.
- Removed deprecated symbols from `macros` module, deprecated as far back as `0.15`.

## Language changes
- In newruntime it is now allowed to assign discriminator field without \ 
restrictions as long as case object doesn't have custom destructor. \ 
Discriminator value doesn't have to be a constant either. If you have custom \ 
destructor for case object and you do want to freely assign discriminator \ 
fields, it is recommended to refactor object into 2 objects like this:
  ```nim
  type
    MyObj = object
      case kind: bool
        of true: y: ptr UncheckedArray[float]
        of false: z: seq[int]

  proc `=destroy`(x: MyObj) =
    if x.kind and x.y != nil:
      deallocShared(x.y)
      x.y = nil
  ```
  Refactor into:
  ```nim
  type
    MySubObj = object
      val: ptr UncheckedArray[float]
    MyObj = object
      case kind: bool
      of true: y: MySubObj
      of false: z: seq[int]

  proc `=destroy`(x: MySubObj) =
    if x.val != nil:
      deallocShared(x.val)
      x.val = nil
  ```
   2020-06-21 09:43:29 by Ryo ONODERA | Files touched by this commit (5) | Package updated
Log message:
nim: Update to 1.2.2

Changelog:
Bugfixes

    Fixed “Critical: 1 completed Future, multiple await: Only 1 await will be \ 
awakened (the last one)” (#13889)
    Fixed ““distinct uint64” type corruption on 32-bit, when using \ 
{.borrow.} operators” (#13902)
    Fixed “Regression: impossible to use typed pragmas with proc types” (#13909)
    Fixed “openssl wrapper corrupts stack on OpenSSL 1.1.1f + Android” (#13903)
    Fixed “add nimExe to nim dump” (#13876)
    Fixed “simple ‘var openarray[char]’ assignment crash when the \ 
openarray source is a local string and using gc:arc” (#14003)
    Fixed “Cant use expressions with when in type sections.” (#14007)
    Fixed “Annoying warning: inherit from a more precise exception type like \ 
ValueError, IOError or OSError [InheritFromException]” (#14052)
    Fixed “Incorrect escape sequence for example in jsffi library \ 
documentation” (#14110)
    Fixed “macOS: dsymutil should not be called on static libraries” (#14132)
    Fixed “Fix single match output” (#12920)
    Fixed “algorithm.sortedByIt template corrupts tuple input under \ 
–gc:arc” (#14079)
    Fixed “strformat: doc example fails” (#14054)
    Fixed “Nim doc fail to run for nim 1.2.0 (nim 1.0.4 is ok)” (#13986)
    Fixed “Exception when converting csize to clong” (#13698)
    Fixed “[ARC] Segfault with cyclic references (?)” (#14159)
    Fixed “cas is wrong for tcc” (#14151)
    Fixed “Use -d:nimEmulateOverflowChecks by default?” (#14209)
    Fixed “Invalid return value of openProcess is NULL rather than \ 
INVALID_HANDLE_VALUE(-1) in windows” (#14289)
    Fixed “nim-gdb is missing from all released packages” (#13104)
    Fixed “compiler error with inline async proc and pragma” (#13998)
    Fixed “Linker error with closures” (#209)
    Fixed “ARC codegen bug with inline iterators” (#14219)
    Fixed “[ARC] implicit move on last use happening on non-last use” (#14269)
    Fixed “Boehm GC does not scan thread-local storage” (#14364)
    Fixed “RVO not exception safe” (#14126)
    Fixed “ARC: unreliable setLen “ (#14495)
    Fixed “lent is unsafe: after #14447 you can modify variables with \ 
“items” loop for sequences” (#14498)
    Fixed “moveFile does not overwrite destination file” (#14057)
    Fixed “var op = fn() wrongly gives warning ObservableStores with object of \ 
RootObj type” (#14514)
    Fixed “wrapWords seems to ignore linebreaks when wrapping, leaving breaks \ 
in the wrong place” (#14579)