[backport] add v1.6 changelog (#18932)
This commit is contained in:
parent
e2b19bb2de
commit
f93bfc0a32
2 changed files with 928 additions and 537 deletions
538
changelog.md
538
changelog.md
|
|
@ -1,560 +1,24 @@
|
|||
# v1.6.x - yyyy-mm-dd
|
||||
# v1.8.x - yyyy-mm-dd
|
||||
|
||||
|
||||
|
||||
## Changes affecting backward compatibility
|
||||
|
||||
- Deprecated `std/mersenne`.
|
||||
|
||||
- `system.delete` had a most surprising behavior when the index passed to it was out of
|
||||
bounds (it would delete the last entry then). Compile with `-d:nimStrictDelete` so
|
||||
that an index error is produced instead. But be aware that your code might depend on
|
||||
this quirky behavior so a review process is required on your part before you can
|
||||
use `-d:nimStrictDelete`. To make this review easier, use the `-d:nimAuditDelete`
|
||||
switch, it pretends that `system.delete` is deprecated so that it is easier to see
|
||||
where it was used in your code.
|
||||
|
||||
`-d:nimStrictDelete` will become the default in upcoming versions.
|
||||
|
||||
|
||||
- `cuchar` is now deprecated as it aliased `char` where arguably it should have aliased `uint8`.
|
||||
Please use `char` or `uint8` instead.
|
||||
|
||||
- `repr` now doesn't insert trailing newline; previous behavior was very inconsistent,
|
||||
see #16034. Use `-d:nimLegacyReprWithNewline` for previous behavior.
|
||||
|
||||
- A type conversion from one enum type to another now produces an `[EnumConv]` warning.
|
||||
You should use `ord` (or `cast`, but the compiler won't help, if you misuse it) instead.
|
||||
```
|
||||
type A = enum a1, a2
|
||||
type B = enum b1, b2
|
||||
echo a1.B # produces a warning
|
||||
echo a1.ord.B # produces no warning
|
||||
```
|
||||
|
||||
- A dangerous implicit conversion to `cstring` now triggers a `[CStringConv]` warning.
|
||||
This warning will become an error in future versions! Use an explicit conversion
|
||||
like `cstring(x)` in order to silence the warning.
|
||||
|
||||
- There is a new warning for *any* type conversion to enum that can be enabled via
|
||||
`.warning[AnyEnumConv]:on` or `--warning:AnyEnumConv:on`.
|
||||
|
||||
- Type mismatch errors now show more context, use `-d:nimLegacyTypeMismatch` for previous
|
||||
behavior.
|
||||
|
||||
- `math.round` now is rounded "away from zero" in JS backend which is consistent
|
||||
with other backends. See #9125. Use `-d:nimLegacyJsRound` for previous behavior.
|
||||
|
||||
- Changed the behavior of `uri.decodeQuery` when there are unencoded `=`
|
||||
characters in the decoded values. Prior versions would raise an error. This is
|
||||
no longer the case to comply with the HTML spec and other languages
|
||||
implementations. Old behavior can be obtained with
|
||||
`-d:nimLegacyParseQueryStrict`. `cgi.decodeData` which uses the same
|
||||
underlying code is also updated the same way.
|
||||
|
||||
- On POSIX systems, the default signal handlers used for Nim programs (it's
|
||||
used for printing the stacktrace on fatal signals) will now re-raise the
|
||||
signal for the OS default handlers to handle.
|
||||
|
||||
This lets the OS perform its default actions, which might include core
|
||||
dumping (on select signals) and notifying the parent process about the cause
|
||||
of termination.
|
||||
|
||||
- On POSIX systems, we now ignore `SIGPIPE` signals, use `-d:nimLegacySigpipeHandler`
|
||||
for previous behavior.
|
||||
|
||||
- `hashes.hash` can now support `object` and `ref` (can be overloaded in user code),
|
||||
if `-d:nimPreviewHashRef` is used. It is expected that this behavior
|
||||
becomes the new default in upcoming versions.
|
||||
|
||||
- `hashes.hash(proc|ptr|ref|pointer)` now calls `hash(int)` and honors `-d:nimIntHash1`,
|
||||
`hashes.hash(closure)` has also been improved.
|
||||
|
||||
- The unary slice `..b` was deprecated, use `0..b` instead.
|
||||
|
||||
- Removed `.travis.yml`, `appveyor.yml.disabled`, `.github/workflows/ci.yml.disabled`.
|
||||
|
||||
- `random.initRand(seed)` now produces non-skewed values for the 1st call to `rand()` after
|
||||
initialization with a small (< 30000) seed. Use `-d:nimLegacyRandomInitRand` to restore
|
||||
previous behavior for a transition time, see PR #17467.
|
||||
|
||||
- With `-d:nimPreviewJsonutilsHoleyEnum`, `jsonutils` now can serialize/deserialize holey enums as regular enums (via `ord`) instead of as strings. It is expected that this behavior becomes the new default in upcoming versions. `toJson` now serializes `JsonNode`
|
||||
as is via reference (without a deep copy) instead of treating `JsonNode` as a regular ref object,
|
||||
this can be customized via `jsonNodeMode`.
|
||||
|
||||
- `json` and `jsonutils` now serialize NaN, Inf, -Inf as strings, so that
|
||||
`%[NaN, -Inf]` is the string `["nan","-inf"]` instead of `[nan,-inf]` which was invalid json.
|
||||
|
||||
|
||||
- `strformat` is now part of `include std/prelude`.
|
||||
|
||||
- Deprecated `proc reversed*[T](a: openArray[T], first: Natural, last: int): seq[T]` in `std/algorithm`.
|
||||
|
||||
- In `std/macros`, `treeRepr,lispRepr,astGenRepr` now represent SymChoice nodes in a collapsed way,
|
||||
use `-d:nimLegacyMacrosCollapseSymChoice` to get previous behavior.
|
||||
|
||||
- The configuration subsystem now allows for `-d:release` and `-d:danger` to work as expected.
|
||||
The downside is that these defines now have custom logic that doesn't apply for
|
||||
other defines.
|
||||
|
||||
- `std/os`: `putEnv` now raises if the 1st argument contains a `=`
|
||||
|
||||
- Renamed `-d:nimCompilerStackraceHints` to `-d:nimCompilerStacktraceHints`.
|
||||
|
||||
- In `std/dom`, `Interval` is now a `ref object`, same as `Timeout`. Definitions of `setTimeout`,
|
||||
`clearTimeout`, `setInterval`, `clearInterval` were updated.
|
||||
|
||||
- With `-d:nimPreviewDotLikeOps`, dot-like operators (operators starting with `.`, but not with `..`)
|
||||
now have the same precedence as `.`, so that `a.?b.c` is now parsed as `(a.?b).c` instead of `a.?(b.c)`.
|
||||
A warning is generated when a dot-like operator is used without `-d:nimPreviewDotLikeOps`.
|
||||
|
||||
- The allocator for Nintendo Switch, which was nonfunctional because
|
||||
of breaking changes in libnx, was removed, in favour of the new `-d:nimAllocPagesViaMalloc` option.
|
||||
|
||||
- `net.parseIpAddress` now only allows IPv4 addresses in strict form as defined
|
||||
in [RFC 6943](https://www.rfc-editor.org/rfc/rfc6943#section-3.1.1).
|
||||
Specifically, octal numbers in IPv4 addresses are no longer accepted (before
|
||||
they were parsed as decimal numbers).
|
||||
|
||||
## Standard library additions and changes
|
||||
|
||||
- `strformat`:
|
||||
- added support for parenthesized expressions.
|
||||
- added support for const string's instead of just string literals
|
||||
|
||||
- `os.copyFile` is now 2.5x faster on OSX, by using `copyfile` from `copyfile.h`;
|
||||
use `-d:nimLegacyCopyFile` for OSX < 10.5.
|
||||
|
||||
- `system.addFloat` and `system.$` now can produce string representations of floating point numbers
|
||||
that are minimal in size and that "roundtrip" (via the "Dragonbox" algorithm). This currently has
|
||||
to be enabled via `-d:nimPreviewFloatRoundtrip`. It is expected that this behavior becomes the new default
|
||||
in upcoming versions, as with other `nimPreviewX` define flags.
|
||||
|
||||
- Fixed buffer overflow bugs in `net`.
|
||||
|
||||
- Exported `sslHandle` from `net` and `asyncnet`.
|
||||
|
||||
- Added `sections` iterator in `parsecfg`.
|
||||
|
||||
- Make custom op in macros.quote work for all statements.
|
||||
|
||||
- On Windows the SSL library now checks for valid certificates.
|
||||
It uses the `cacert.pem` file for this purpose which was extracted
|
||||
from `https://curl.se/ca/cacert.pem`. Besides
|
||||
the OpenSSL DLLs (e.g. libssl-1_1-x64.dll, libcrypto-1_1-x64.dll) you
|
||||
now also need to ship `cacert.pem` with your `.exe` file.
|
||||
|
||||
- `typetraits`:
|
||||
`distinctBase` now is identity instead of error for non distinct types.
|
||||
Added `enumLen` to return the number of elements in an enum.
|
||||
Added `HoleyEnum` for enums with holes, `OrdinalEnum` for enums without holes.
|
||||
Added `hasClosure`.
|
||||
Added `pointerBase` to return `T` for `ref T | ptr T`.
|
||||
|
||||
- `prelude` now works with the JavaScript target.
|
||||
Added `sequtils` import to `prelude`.
|
||||
`prelude` can now be used via `include std/prelude`, but `include prelude` still works.
|
||||
|
||||
- Added `almostEqual` in `math` for comparing two float values using a machine epsilon.
|
||||
|
||||
- Added `clamp` in `math` which allows using a `Slice` to clamp to a value.
|
||||
|
||||
- Added `ceilDiv` in `math` for round up integer division.
|
||||
|
||||
- The JSON module can now handle integer literals and floating point literals of
|
||||
arbitrary length and precision.
|
||||
Numbers that do not fit the underlying `BiggestInt` or `BiggestFloat` fields are
|
||||
kept as string literals and one can use external BigNum libraries to handle these.
|
||||
The `parseFloat` family of functions also has now optional `rawIntegers` and
|
||||
`rawFloats` parameters that can be used to enforce that all integer or float
|
||||
literals remain in the "raw" string form so that client code can easily treat
|
||||
small and large numbers uniformly.
|
||||
|
||||
- Added `BackwardsIndex` overload for `JsonNode`.
|
||||
|
||||
- `json.%`,`json.to`, `jsonutils.formJson`,`jsonutils.toJson` now work with `uint|uint64`
|
||||
instead of raising (as in 1.4) or giving wrong results (as in 1.2).
|
||||
|
||||
- `jsonutils` now handles `cstring` (including as Table key), and `set`.
|
||||
|
||||
- added `jsonutils.jsonTo` overload with `opt = Joptions()` param.
|
||||
|
||||
- `jsonutils.toJson` now supports customization via `ToJsonOptions`.
|
||||
|
||||
- Added an overload for the `collect` macro that inferes the container type based
|
||||
on the syntax of the last expression. Works with std seqs, tables and sets.
|
||||
|
||||
- Added `randState` template that exposes the default random number generator.
|
||||
Useful for library authors.
|
||||
|
||||
- Added `random.initRand()` overload with no argument which uses the current time as a seed.
|
||||
|
||||
- `random.initRand(seed)` now allows `seed == 0`.
|
||||
|
||||
- Added `std/sysrand` module to get random numbers from a secure source
|
||||
provided by the operating system.
|
||||
|
||||
- Added `std/enumutils` module. Added `genEnumCaseStmt` macro that generates
|
||||
case statement to parse string to enum.
|
||||
- Added `items` for enums with holes.
|
||||
- Added `symbolName` to return the enum symbol name ignoring the human readable name.
|
||||
- Added `symbolRank` to return the index in which an enum member is listed in an enum.
|
||||
|
||||
- Removed deprecated `iup` module from stdlib, it has already moved to
|
||||
[nimble](https://github.com/nim-lang/iup).
|
||||
|
||||
- various functions in `httpclient` now accept `url` of type `Uri`. Moreover `request` function's
|
||||
`httpMethod` argument of type `string` was deprecated in favor of `HttpMethod` enum type.
|
||||
|
||||
- `nodejs` backend now supports osenv: `getEnv`, `putEnv`, `envPairs`, `delEnv`, `existsEnv`.
|
||||
|
||||
- Added `cmpMem` to `system`.
|
||||
|
||||
- `doAssertRaises` now correctly handles foreign exceptions.
|
||||
|
||||
- Added `asyncdispatch.activeDescriptors` that returns the number of currently
|
||||
active async event handles/file descriptors.
|
||||
|
||||
- Added `getPort` to `asynchttpserver`.
|
||||
|
||||
- `--gc:orc` is now 10% faster than previously for common workloads. If
|
||||
you have trouble with its changed behavior, compile with `-d:nimOldOrc`.
|
||||
|
||||
- `os.FileInfo` (returned by `getFileInfo`) now contains `blockSize`,
|
||||
determining preferred I/O block size for this file object.
|
||||
|
||||
- Added `os.getCacheDir()` to return platform specific cache directory.
|
||||
|
||||
- Added a simpler to use `io.readChars` overload.
|
||||
|
||||
- Added `**` to jsffi.
|
||||
|
||||
- `writeStackTrace` is available in JS backend now.
|
||||
|
||||
- Added `decodeQuery` to `std/uri`.
|
||||
|
||||
- `strscans.scanf` now supports parsing single characters.
|
||||
|
||||
- `strscans.scanTuple` added which uses `strscans.scanf` internally,
|
||||
returning a tuple which can be unpacked for easier usage of `scanf`.
|
||||
|
||||
- Added `setutils.toSet` that can take any iterable and convert it to a built-in `set`,
|
||||
if the iterable yields a built-in settable type.
|
||||
|
||||
- Added `setutils.fullSet` which returns a full built-in `set` for a valid type.
|
||||
|
||||
- Added `setutils.complement` which returns the complement of a built-in `set`.
|
||||
|
||||
- Added `setutils.[]=`.
|
||||
|
||||
- Added `math.isNaN`.
|
||||
|
||||
- Added `jsbigints` module, arbitrary precision integers for JavaScript target.
|
||||
|
||||
- Added `math.copySign`.
|
||||
|
||||
- Added new operations for singly- and doubly linked lists: `lists.toSinglyLinkedList`
|
||||
and `lists.toDoublyLinkedList` convert from `openArray`s; `lists.copy` implements
|
||||
shallow copying; `lists.add` concatenates two lists - an O(1) variation that consumes
|
||||
its argument, `addMoved`, is also supplied.
|
||||
|
||||
- Added `euclDiv` and `euclMod` to `math`.
|
||||
|
||||
- Added `httpcore.is1xx` and missing HTTP codes.
|
||||
|
||||
- Added `jsconsole.jsAssert` for JavaScript target.
|
||||
|
||||
- Added `posix_utils.osReleaseFile` to get system identification from `os-release` file on Linux and the BSDs.
|
||||
https://www.freedesktop.org/software/systemd/man/os-release.html
|
||||
|
||||
- Added `socketstream` module that wraps sockets in the stream interface
|
||||
|
||||
- Added `sugar.dumpToString` which improves on `sugar.dump`.
|
||||
|
||||
- Added `math.signbit`.
|
||||
|
||||
- Removed the optional `longestMatch` parameter of the `critbits._WithPrefix` iterators (it never worked reliably)
|
||||
|
||||
- In `lists`: renamed `append` to `add` and retained `append` as an alias;
|
||||
added `prepend` and `prependMoved` analogously to `add` and `addMoved`;
|
||||
added `remove` for `SinglyLinkedList`s.
|
||||
|
||||
- Deprecated `any`. See https://github.com/nim-lang/RFCs/issues/281
|
||||
|
||||
- Added optional `options` argument to `copyFile`, `copyFileToDir`, and
|
||||
`copyFileWithPermissions`. By default, on non-Windows OSes, symlinks are
|
||||
followed (copy files symlinks point to); on Windows, `options` argument is
|
||||
ignored and symlinks are skipped.
|
||||
|
||||
- On non-Windows OSes, `copyDir` and `copyDirWithPermissions` copy symlinks as
|
||||
symlinks (instead of skipping them as it was before); on Windows symlinks are
|
||||
skipped.
|
||||
|
||||
- On non-Windows OSes, `moveFile` and `moveDir` move symlinks as symlinks
|
||||
(instead of skipping them sometimes as it was before).
|
||||
|
||||
- Added optional `followSymlinks` argument to `setFilePermissions`.
|
||||
|
||||
- Added `os.isAdmin` to tell whether the caller's process is a member of the
|
||||
Administrators local group (on Windows) or a root (on POSIX).
|
||||
|
||||
- Added experimental `linenoise.readLineStatus` to get line and status (e.g. ctrl-D or ctrl-C).
|
||||
|
||||
- Added `compilesettings.SingleValueSetting.libPath`.
|
||||
|
||||
- `std/wrapnils` doesn't use `experimental:dotOperators` anymore, avoiding
|
||||
issues like https://github.com/nim-lang/Nim/issues/13063 (which affected error messages)
|
||||
for modules importing `std/wrapnils`.
|
||||
Added `??.` macro which returns an `Option`.
|
||||
`std/wrapnils` can now be used to protect against `FieldDefect` errors in
|
||||
case objects, generates optimal code (no overhead compared to manual
|
||||
if-else branches), and preserves lvalue semantics which allows modifying
|
||||
an expression.
|
||||
|
||||
- Added `math.frexp` overload procs. Deprecated `c_frexp`, use `frexp` instead.
|
||||
|
||||
- `parseopt.initOptParser` has been made available and `parseopt` has been
|
||||
added back to `prelude` for all backends. Previously `initOptParser` was
|
||||
unavailable if the `os` module did not have `paramCount` or `paramStr`,
|
||||
but the use of these in `initOptParser` were conditionally to the runtime
|
||||
arguments passed to it, so `initOptParser` has been changed to raise
|
||||
`ValueError` when the real command line is not available. `parseopt` was
|
||||
previously excluded from `prelude` for JS, as it could not be imported.
|
||||
|
||||
- Added `system.prepareStrMutation` for better support of low
|
||||
level `moveMem`, `copyMem` operations for Orc's copy-on-write string
|
||||
implementation.
|
||||
|
||||
- Added `std/strbasics` for high performance string operations.
|
||||
Added `strip`, `setSlice`, `add(a: var string, b: openArray[char])`.
|
||||
|
||||
- `std/options` changed `$some(3)` to `"some(3)"` instead of `"Some(3)"`
|
||||
and `$none(int)` to `"none(int)"` instead of `"None[int]"`.
|
||||
|
||||
- Added `algorithm.merge`.
|
||||
|
||||
- Added `std/jsfetch` module [Fetch](https://developer.mozilla.org/docs/Web/API/Fetch_API) wrapper for JavaScript target.
|
||||
|
||||
- Added `std/jsheaders` module [Headers](https://developer.mozilla.org/en-US/docs/Web/API/Headers) wrapper for JavaScript target.
|
||||
|
||||
- Added `std/jsformdata` module [FormData](https://developer.mozilla.org/en-US/docs/Web/API/FormData) wrapper for JavaScript target.
|
||||
|
||||
- `system.addEscapedChar` now renders `\r` as `\r` instead of `\c`, to be compatible
|
||||
with most other languages.
|
||||
|
||||
- Removed support for named procs in `sugar.=>`.
|
||||
|
||||
- Added `jscore.debugger` to [call any available debugging functionality, such as breakpoints.](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Statements/debugger).
|
||||
|
||||
- Added `htmlgen.portal` for [making "SPA style" pages using HTML only](https://web.dev/hands-on-portals).
|
||||
|
||||
- `std/times`:
|
||||
Added `ZZZ` and `ZZZZ` patterns to `times.nim` `DateTime` parsing, to match time
|
||||
zone offsets without colons, e.g. `UTC+7 -> +0700`.
|
||||
|
||||
Added `dateTime` and deprecated `initDateTime`.
|
||||
|
||||
- Added `jsconsole.dir`, `jsconsole.dirxml`, `jsconsole.timeStamp`.
|
||||
|
||||
- Added dollar `$` and `len` for `jsre.RegExp`.
|
||||
|
||||
- Added `std/tasks`.
|
||||
|
||||
- Added `hasDataBuffered` to `asyncnet`.
|
||||
|
||||
- Added `std/tempfiles`.
|
||||
|
||||
- Added `genasts.genAst` that avoids the problems inherent with `quote do` and can
|
||||
be used as a replacement.
|
||||
|
||||
- Added `copyWithin` [for `seq` and `array` for JavaScript targets](https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/copyWithin).
|
||||
|
||||
- Fixed premature garbage collection in asyncdispatch, when a stack trace override is in place.
|
||||
|
||||
- Added setCurrentException for JS backend.
|
||||
|
||||
- Added `dom.scrollIntoView` proc with options
|
||||
|
||||
- Added `dom.setInterval`, `dom.clearInterval` overloads.
|
||||
|
||||
- Merged `dom_extensions` module into `dom` module,
|
||||
it was a module with a single line, see https://github.com/nim-lang/RFCs/issues/413
|
||||
|
||||
- Allow reading parameters when compiling for Nintendo Switch.
|
||||
|
||||
- Deprecated `sequtils.delete` and added an overload taking a `Slice` that raises a defect
|
||||
if the slice is out of bounds, likewise with `strutils.delete`.
|
||||
|
||||
|
||||
## Language changes
|
||||
|
||||
- The `cstring` doesn't support `[]=` operator in JS backend.
|
||||
|
||||
- nil dereference is not allowed at compile time. `cast[ptr int](nil)[]` is rejected at compile time.
|
||||
|
||||
- The required name of case statement macros for the experimental
|
||||
`caseStmtMacros` feature has changed from `match` to `` `case` ``.
|
||||
|
||||
- `typedesc[Foo]` now renders as such instead of `type Foo` in compiler messages.
|
||||
|
||||
- The unary minus in `-1` is now part of the integer literal, it is now parsed as a single token.
|
||||
This implies that edge cases like `-128'i8` finally work correctly.
|
||||
|
||||
- Custom numeric literals (e.g. `-128'bignum`) are now supported.
|
||||
|
||||
- Tuple expressions are now parsed consistently as
|
||||
`nnkTupleConstr` node. Will affect macros expecting nodes to be of `nnkPar`.
|
||||
|
||||
- Added `iterable[T]` type class to match called iterators, which enables writing:
|
||||
`template fn(a: iterable)` instead of `template fn(a: untyped)`
|
||||
|
||||
- A new import syntax `import foo {.all.}` now allows to import all symbols (public or private)
|
||||
from `foo`. This can be useful for testing purposes.
|
||||
|
||||
- Added a new module `std/importutils`, and an API `privateAccess`, which allows access to private fields
|
||||
for an object type in the current scope.
|
||||
|
||||
- `typeof(voidStmt)` now works and returns `void`.
|
||||
|
||||
- The `gc:orc` algorithm was refined so that custom container types can participate in the
|
||||
cycle collection process. See the documentation of `=trace` for more details.
|
||||
|
||||
- On embedded devices `malloc` can now be used instead of `mmap` via `-d:nimAllocPagesViaMalloc`.
|
||||
This is only supported for `--gc:orc` or `--gc:arc`.
|
||||
|
||||
- The effect system was refined and there is a new `.effectsOf` annotation that does
|
||||
explicitly what was previously done implicitly. See the manual for details.
|
||||
To write code that is portable with older Nim versions, use this idiom:
|
||||
|
||||
```nim
|
||||
|
||||
when defined(nimHasEffectsOf):
|
||||
{.experimental: "strictEffects".}
|
||||
else:
|
||||
{.pragma: effectsOf.}
|
||||
|
||||
proc mysort(s: seq; cmp: proc(a, b: T): int) {.effectsOf: cmp.}
|
||||
|
||||
```
|
||||
|
||||
To enable the new effect system, use --experimental:strictEffects.
|
||||
|
||||
|
||||
- Nim now supports a small subset of Unicode operators as operator symbols.
|
||||
The supported symbols are: "∙ ∘ × ★ ⊗ ⊘ ⊙ ⊛ ⊠ ⊡ ∩ ∧ ⊓ ± ⊕ ⊖ ⊞ ⊟ ∪ ∨ ⊔".
|
||||
To enable this feature, use `--experimental:unicodeOperators`. Note that due
|
||||
to parser limitations you **cannot** enable this feature via a
|
||||
pragma `{.experimental: "unicodeOperators".}` reliably, you need to enable
|
||||
it via the command line or in a configuration file.
|
||||
|
||||
- There is a new `cast` section `{.cast(uncheckedAssign).}: body` that disables some
|
||||
compiler checks regarding `case objects`. This allows serialization libraries
|
||||
to avoid ugly, non-portable solutions. See https://github.com/nim-lang/RFCs/issues/407
|
||||
for more details.
|
||||
|
||||
- Enum values can now be overloaded. This needs to be enabled
|
||||
via `{.experimental: "overloadableEnums".}`. We hope that this feature allows for the
|
||||
development of more fluent (less ugly) APIs. See https://github.com/nim-lang/RFCs/issues/373
|
||||
for more details.
|
||||
|
||||
|
||||
## Compiler changes
|
||||
|
||||
- Added `--declaredLocs` to show symbol declaration location in messages.
|
||||
|
||||
- You can now enable/disable VM tracing in user code via `vmutils.vmTrace`.
|
||||
|
||||
- Deprecated `TaintedString` and `--taintmode`.
|
||||
|
||||
- Deprecated `--nilseqs` which is now a noop.
|
||||
|
||||
- Added `--spellSuggest` to show spelling suggestions on typos.
|
||||
|
||||
- Added `--filenames:abs|canonical|legacyRelProj` which replaces --listFullPaths:on|off
|
||||
|
||||
- Added `--processing:dots|filenames|off` which customizes `hintProcessing`
|
||||
|
||||
- Added `--unitsep:on|off` to control whether to add ASCII unit separator `\31` before a newline
|
||||
for every generated message (potentially multiline), so tooling can tell when messages start and end.
|
||||
|
||||
- Source+Edit links now appear on top of every docgen'd page when
|
||||
`nim doc --git.url:url ...` is given.
|
||||
|
||||
- Added `nim --eval:cmd` to evaluate a command directly, see `nim --help`.
|
||||
|
||||
- VM now supports `addr(mystring[ind])` (index + index assignment)
|
||||
|
||||
- Added `--hintAsError` with similar semantics as `--warningAsError`.
|
||||
|
||||
- TLS: OSX now uses native TLS (`--tlsEmulation:off`), TLS now works with importcpp non-POD types,
|
||||
such types must use `.cppNonPod` and `--tlsEmulation:off`should be used.
|
||||
|
||||
- Now array literals(JS backend) uses JS typed arrays when the corresponding js typed array exists,
|
||||
for example `[byte(1), 2, 3]` generates `new Uint8Array([1, 2, 3])`.
|
||||
|
||||
- docgen: rst files can now use single backticks instead of double backticks and correctly render
|
||||
in both rst2html (as before) as well as common tools rendering rst directly (e.g. github), by
|
||||
adding: `default-role:: code` directive inside the rst file, which is now handled by rst2html.
|
||||
|
||||
- Added `-d:nimStrictMode` in CI in several places to ensure code doesn't have certain hints/warnings
|
||||
|
||||
- Added `then`, `catch` to `asyncjs`, for now hidden behind `-d:nimExperimentalAsyncjsThen`.
|
||||
|
||||
- `--newruntime` and `--refchecks` are deprecated.
|
||||
|
||||
- Added `unsafeIsolate` and `extract` to `std/isolation`.
|
||||
|
||||
- `--hint:CC` now goes to stderr (like all other hints) instead of stdout.
|
||||
|
||||
- `--hint:all:on|off` is now supported to select or deselect all hints; it
|
||||
differs from `--hints:on|off` which acts as a (reversible) gate.
|
||||
Likewise with `--warning:all:on|off`.
|
||||
|
||||
- json build instructions are now generated in `$nimcache/outFileBasename.json`
|
||||
instead of `$nimcache/projectName.json`. This allows avoiding recompiling a given project
|
||||
compiled with different options if the output file differs.
|
||||
|
||||
- `--usenimcache` (implied by `nim r main`) now generates an output file that includes a hash of
|
||||
some of the compilation options, which allows caching generated binaries:
|
||||
nim r main # recompiles
|
||||
nim r -d:foo main # recompiles
|
||||
nim r main # uses cached binary
|
||||
nim r main arg1 arg2 # ditto (runtime arguments are irrelevant)
|
||||
|
||||
- `nim r` now supports cross compilation from unix to windows when specifying `-d:mingw` by using wine,
|
||||
e.g.: `nim r --eval:'import os; echo "a" / "b"'` prints `a\b`
|
||||
|
||||
- `nim` can compile version 1.4.0 as follows: `nim c --lib:lib --stylecheck:off -d:nimVersion140 compiler/nim`.
|
||||
`-d:nimVersion140` is not needed for bootstrapping, only for building 1.4.0 from devel.
|
||||
|
||||
- The style checking of the compiler now supports a `--styleCheck:usages` switch. This switch
|
||||
enforces that every symbol is written as it was declared, not enforcing
|
||||
the official Nim style guide. To be enabled, this has to be combined either
|
||||
with `--styleCheck:error` or `--styleCheck:hint`.
|
||||
|
||||
|
||||
## Tool changes
|
||||
|
||||
- `nimscript` now handles `except Exception as e`.
|
||||
|
||||
- `nim e` now accepts arbitrary file extensions for the nimscript file,
|
||||
although `.nims` is still the preferred extension in general.
|
||||
|
||||
- Latex doc generation is revised: output `.tex` files should be compiled
|
||||
by `xelatex` (not by `pdflatex` as before). Now default Latex settings
|
||||
provide support for Unicode and do better job for avoiding margin overflows.
|
||||
|
||||
- Implemented `doc2tex` compiler command which converts documentation in
|
||||
`.nim` files to Latex.
|
||||
|
||||
- The rst parser now supports markdown table syntax.
|
||||
Known limitations:
|
||||
- cell alignment is not supported, i.e. alignment annotations in a delimiter
|
||||
row (`:---`, `:--:`, `---:`) are ignored,
|
||||
- every table row must start with `|`, e.g. `| cell 1 | cell 2 |`.
|
||||
|
||||
- `fusion` is now un-bundled from nim, `./koch fusion` will
|
||||
install it via nimble at a fixed hash.
|
||||
|
||||
- testament: added `nimoutFull: bool` spec to compare full output of compiler
|
||||
instead of a subset.
|
||||
|
|
|
|||
Loading…
Add table
Add a link
Reference in a new issue