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0.4.4

V 0.4.4

9 January 2024

Improvements in the language

• Implement @[aligned] and @[aligned:8] attributes for structs and unions (#19915)
• Update attributes to use new syntax
• Update remaining deprecated attr syntax (#19908)
• Support $if T is $array_dynamic { and $if T is $array_fixed { in addition to $if T is $array { (#19882)
• Prepare for making -W impure-v the default (#19940)
• Assigning 0 to reference fields now requires unsafe blocks (fix #14911) (#19955)
• Unwrap const() blocks
• Implement $for comptime T.variants (#20193)
• Add r and R switches for repeating in string interpolation, '${"abc":3r}' == 'abcabcabc' (#20197)
• Comptime refactor and cleanup (#20196)
• Allow comptime-for to iterate over comptime variables, add $string comptime type, cleanup (#20233)
• Unwrap an option value automatically, inside if o != none { (#20275)
• Complete support for smartcasting to a comptime variable type (#20270)
• Improve comptime var checking with is operator and smartcasting (#20315)

Breaking changes

none

Checker improvements/fixes

• Disallow $for i in struct.values and $for i in enum.fields (#19845)
• Parser, checker: fix var scope in lambda(fix #19860) (#19871)
• Change the warning more than 1000 possibilities in match range to a notice (#19862)
• Fix inability to use multiple import some modname as _ in the same .v file (fix #19899) (#19900)
• Disallow casting strings to pointers outside unsafe (#19977)
• Disallow directly indexing sumtype and interface, when using as parameters(fix #19811) (#19982)
• Fix loop on aggregates of arrays (in match branches) of sumtypes (fix #18548) (#19988)
• Disallow indexing mut struct, passed as a fn parameter (#19992)
• Enhance err msg for unknown types for comptime $for (#20057)
• Fix .clone()/.move() with shared maps (#20083)
• Fix generics method call with struct short syntax args(fix #20030) (#20100)
• Fix unwrap, when generic structs are used as arguments, in uncalled methods (fix #20132) (#20135)
• Fix generic fn with generic fn call returning generic map (fix #20106) (#20150)
• Cast sumtype to its variant generic type (#20166)
• Refactor string to enum error check, handle EnumName(string_variable) too (#20210)
• Fix generic array method call with multi-types (#20237)
• Remove unnecessary struct ref field initialization checks and notifications at map initializing(fix #20245) (#20251)
• Add a notice, for accessing by key, map values, that contain pointers (to use unsafe or an or {} block) (#20266)
• Fix mismatch checking when a function returns sumtype as an argument (fix #19325) (#20264)
• Fix and cleanup uninitialized checks for array initialisers with len: (fix #20272) (#20279)
• Give an error for .free() method calls, when used on fixed arrays (#20320)
• Fix type mismatch checking for assignments with generics (fix #20298) (#20327)
• Fix too strict checking with generics in assignment type mismatch (fix #20335) (#20346)
• Disallow string to voidptr cast entirely (#20351)
• Fix generic method calls with multi generic types (fix #20330) (#20360)

Parser improvements

• parser: fix parsing comments after new attribute syntax
• parser: fix failures found with fuzzing (#19873)
• parser: deprecate old attribute syntax & update remaining (missed) attributes (#19879)
• parser: fix infix expr handling with cast on left side of << operator (#19985)
• ast: fix generic structs with multiple levels of generic embedding (#20042)
• parser: implement thread returns result and multi_returns (fix #19281) (#20194)
• parser: fix formatting struct decl with comments (#20207)
• parser: fix formatting enum and interface decl with comments (#20216)
• parser: fix fn call with newline opening brace (fix #20258) (#20267)
• parser: fix parse_vet_file() with vfmt off/on flag (#20273)

Compiler internals

• scanner: implement support for UTF-32 escape codes in string literals (#19911)
• scanner: add new_silent_scanner/0, Scanner.prepare_for_new_text/1, make .ident_char/0, .ident_string/0 and .text_scan/0 public (#20045)
• pref: support VNORUN=1, to enable running of tests, vsh files etc (i.e. just compile them, for debugging later)
• scanner: fix backslashes followed directly by newline in string literals (fix #20291) (#20296)
• scanner: fix escape character handling in character/rune literals (fix #20301) (#20304)
• pref: disable the -macosx_version_min clang flag by default (#20297)
• builder: remove passing -fno-strict-aliasing, for -prod to gcc/icc (#20368)
• markused: add -skip-unused for programs that import x.vweb too (do not skip unused routing methods)

Standard library

• json: fix recursive pointer encoding (#19840)
• os,picohttpparser,sokol,strconv: prepare for making -W impure-v the default (#19846)
• os: add fast path to mkdir_all, when the given folder already exists (#19869)
• os: ignore empty path segments in join_path (#19877)
• os: fix bootstrapping for OpenBSD
• x.json2: replace deprecated type byte with u8 in the tests (#19909)
• vlib: change byte to u8 (#19930)
• sync: add a FreeBSD specific version of vlib/sync/sync_default.c.v (#19962)
• datatypes: add push_many for doubly and singly linked list + add insert_many for heap (#19975)
• datatypes: make Direction pub and fix and add tests for push_many (#19983)
• gg: fn (data voidptr, e &Event) for events, allows methods
• vlib: add a compress.szip module, deprecate the szip one after 2023-12-31 (#20003)
• os: create the folder described by XDG_CACHE_HOME, if it is non empty, and it does not exist yet, when calling os.cache_dir() (#20046)
• vlib: use the builtin flush functions, instead of the C. ones (#20108)
• crypto: add blake2s and blake2b hashes (#20149)
• os: fix mv_by_cp for directories (#20154)
• os: update mv fns, improve performance, add params struct to control overwrite behavior (#20156)
• gg: fix overlapping slices in draw_slice_filled() (#20182)
• json: fix option sumtype handling (#20186)
• builtin: add @[direct_array_access] to js string trim_right method (#20222)
• json2: add encoder support for time.Time (#20228)
• json2: fix encoding of 💀🐈 etc emojis (fix #20243) (#20247)
• json2: make public the generic function map_from/1 (#20294)
• json2: optimise encoding to be faster than cJSON with -prod (#20052)
• json2: support sumtype encoding in a more robust way (#20093)
• json2: strict module (#17927)
• crypto: fix notices/errors for v -N test vlib/crypto
• crypto: add blake3 hash (#20319)
• sokol: fix compiling gg and other graphical examples on OpenBSD (#20333)
• csv: Add a sequential reader too (suitable for very large .csv files, it does not read everything at once) (#20140)

Web

• net.mbedtls: use char and usize types for describing more precisely the C API of mbedtls (#19837)
• vweb: add the mime type for .toml files (#19875)
• net.openssl: use actual C values for the SSLError enum (#19945)
• vweb: .html('custom_template.html')
• vweb: add an optional parameter to the .redirect/2 method, to be able to set the http code for the redirects (#20082)
• x.vweb: fix large payload (#20155)
• x.vweb: reimplement csrf module (#20160)
• net: make net.fionbio and net.msg_nosignal constants public in net_windows.c.v (#20183)
• net.http: remove unused read_set_cookies function (#20187)
• os, net.http.file: add a folder listing to the http static file server, started by file.serve/1 (#20192)
• websocket: enable using an already existing connection (from vweb or another http server) (#20103)
• x.vweb: fix fsanitize-address test for SSE, improve documentation on the usage of takeover_conn (#20249)
• net.http: support -d no_vschannel on windows, to fix long waits, while connecting on some systems (#20265)
• x.vweb: fix $vweb.html() integration in cgen for the newer x.vweb module (fix #20204)
• net: support only ip and ip6 in net.tcp_listener (#20336)
• x.vweb.assets: reimplement assets module for x.vweb (#20280)
• x.vweb.sse: reimplement SSE module for x.vweb (#20203)
• js.dom: add querySelector[All] and NodeList (#20240)

ORM

• orm: fix code generation for an option time.Time field (#20031)
• orm: fix the generated SQL for the "not equal" operator (#20321)

Database drivers

• db.mysql: add support for the FreeBSD name of the mariadb client library (#20039)
• db.pg: fix using postgresql on windows, improve instructions for installing it (#20053)
• db.mysql: add ability to prepare and execute statements separately (#20146)
• db.pg: fix compilation error with the msvc compiler on windows, and add readme (#20326)

Native backend

C backend

• Fix generic fn returning fixed array (#19885)
• Fix arrays alias built-in methods call(fix #19896) (#19910)
• Fix generic array initialization (fix #19903) (#19916)
• Fix option sumtype auto deref (#19919)
• Ast, checker, cgen: fix interface embeded methods call(fix #16496) (#19936)
• Fix ref and deref when an interface is used as a function parameter (fix #19947) (#19966)
• Fix auto str for interface struct member which implements str method (#19970)
• Fix generics call with interface arg (fix #19976) (#20002)
• Fix lambda initialization on option struct field (fix #19474) (#19995)
• Fix live mode on windows (#20041)
• Fix the static from_string method of Enum across mods(fix #20050) (#20068)
• Fix @[if xyz?] fn init() {}, add tests (#20096)
• Fix assignment to the elements of an array of fixed arrays (#20133)
• Fix mutable comptimeselector usage (fix #20027) (#20134)
• Fix generics chans select (#20159)
• Fix string interp with zero characters (fix #20199) (#20200)
• Fix interface eq method with option and ref (fix #19441) (#20201)
• Fix infix expr in method of mut receiver variable (#20225)
• Fix cgen for thread wrappers, when spawning fns with with anon-fn arra...

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