rescript - npm Package Versions

12.0.0-alpha.4

:boom: Breaking Change

• OCaml compatibility in the stdlib and primitives are dropped/deprecated. https://github.com/rescript-lang/rescript-compiler/pull/6984
• Remove JSX v3. https://github.com/rescript-lang/rescript-compiler/pull/7072
• Remove js_cast.res. https://github.com/rescript-lang/rescript-compiler/pull/7075

:rocket: New Feature

• Use FORCE_COLOR environmental variable to force colorized output. https://github.com/rescript-lang/rescript-compiler/pull/7033
• Allow spreads of variants in patterns (| ...someVariant as v => ) when the variant spread is a subtype of the variant matched on. https://github.com/rescript-lang/rescript-compiler/pull/6721
• Fix the issue where dynamic imports are not working for function-defined externals. https://github.com/rescript-lang/rescript-compiler/pull/7060
• Allow pattern matching on dicts. switch someDict { | dict{"one": 1} => Js.log("one is one") }. https://github.com/rescript-lang/rescript-compiler/pull/7059
• "ReScript Core" standard library is now included in the rescript npm package. https://github.com/rescript-lang/rescript-compiler/pull/7108 https://github.com/rescript-lang/rescript-compiler/pull/7116
• Handle absolute filepaths in gentype. https://github.com/rescript-lang/rescript-compiler/pull/7104

:bug: Bug fix

• Fix tuple coercion. https://github.com/rescript-lang/rescript-compiler/pull/7024
• Fix attribute printing. https://github.com/rescript-lang/rescript-compiler/pull/7025
• Fix "rescript format" with many files. https://github.com/rescript-lang/rescript-compiler/pull/7081
• Fix bigint max, min. https://github.com/rescript-lang/rescript-compiler/pull/7088
• Fix parsing issue with nested variant pattern type spreads. https://github.com/rescript-lang/rescript-compiler/pull/7080
• Fix JSX settings inheritance: only 'version' propagates to dependencies, preserving their 'mode' and 'module'. https://github.com/rescript-lang/rescript-compiler/pull/7094
• Fix variant cast to int. https://github.com/rescript-lang/rescript-compiler/pull/7058
• Fix comments formatted away in function without arguments. https://github.com/rescript-lang/rescript-compiler/pull/7095
• Fix genType JSX component compilation. https://github.com/rescript-lang/rescript-compiler/pull/7107

:nail_care: Polish

• Add some context to error message for unused variables. https://github.com/rescript-lang/rescript-compiler/pull/7050
• Improve error message when passing children prop to a component that doesn't accept it. https://github.com/rescript-lang/rescript-compiler/pull/7044
• Improve error messages for pattern matching on option vs non-option, and vice versa. https://github.com/rescript-lang/rescript-compiler/pull/7035
• Improve bigint literal comparison. https://github.com/rescript-lang/rescript-compiler/pull/7029
• Improve output of @variadic bindings. https://github.com/rescript-lang/rescript-compiler/pull/7030
• Improve error messages around JSX components. https://github.com/rescript-lang/rescript-compiler/pull/7038
• Improve output of record copying. https://github.com/rescript-lang/rescript-compiler/pull/7043
• Provide additional context in error message when unit is expected. https://github.com/rescript-lang/rescript-compiler/pull/7045
• Improve error message when passing an object where a record is expected. https://github.com/rescript-lang/rescript-compiler/pull/7101

:house: Internal

• Remove uncurried flag from bsb. https://github.com/rescript-lang/rescript-compiler/pull/7049
• Build runtime/stdlib files with rescript/bsb instead of ninja.js. https://github.com/rescript-lang/rescript-compiler/pull/7063
• Build tests with bsb and move them out of jscomp. https://github.com/rescript-lang/rescript-compiler/pull/7068
• Run build_tests on Windows. https://github.com/rescript-lang/rescript-compiler/pull/7065
• Rename folder "jscomp" to "compiler". https://github.com/rescript-lang/rescript-compiler/pull/7086
• Disable -bs-cross-module-opt for tests. https://github.com/rescript-lang/rescript-compiler/pull/7071
• Move ounit_tests into the tests folder. https://github.com/rescript-lang/rescript-compiler/pull/7096
• Move syntax_tests into the tests folder. https://github.com/rescript-lang/rescript-compiler/pull/7090 https://github.com/rescript-lang/rescript-compiler/pull/7097
• Capitalize runtime filenames. https://github.com/rescript-lang/rescript-compiler/pull/7110
• Build mocha tests as esmodule / .mjs. https://github.com/rescript-lang/rescript-compiler/pull/7115
• Use dict instead of Dict.t everywhere. https://github.com/rescript-lang/rescript-compiler/pull/7136

12.0.0-alpha.3

:bug: Bug fix

• Revert "Throws an instance of JavaScript's new Error() and adds the extension payload for cause option" (https://github.com/rescript-lang/rescript-compiler/pull/6611). https://github.com/rescript-lang/rescript-compiler/pull/7016
• Fix dict literals error. https://github.com/rescript-lang/rescript-compiler/pull/7019

12.0.0-alpha.2

:rocket: New Feature

• Allow coercing polyvariants to variants when we can guarantee that the runtime representation matches. https://github.com/rescript-lang/rescript-compiler/pull/6981
• Add new dict literal syntax (dict{"foo": "bar"}). https://github.com/rescript-lang/rescript-compiler/pull/6774
• Optimize usage of the new dict literal syntax to emit an actual JS object literal. https://github.com/rescript-lang/rescript-compiler/pull/6538

:bug: Bug Fix

• Fix issue where long layout break added a trailing comma in partial application .... https://github.com/rescript-lang/rescript-compiler/pull/6949
• Fix incorrect format of function under unary operator. https://github.com/rescript-lang/rescript-compiler/pull/6953
• Fix incorrect printing of module binding with signature. https://github.com/rescript-lang/rescript-compiler/pull/6963
• Fix incorrect printing of external with @as attribute and _ placholder (fixed argument). https://github.com/rescript-lang/rescript-compiler/pull/6970
• Disallow spreading anything but regular variants inside of other variants. https://github.com/rescript-lang/rescript-compiler/pull/6980
• Fix comment removed when function signature has type keyword. https://github.com/rescript-lang/rescript-compiler/pull/6997
• Fix parse error on doc comment before "and" in type def. https://github.com/rescript-lang/rescript-compiler/pull/7001

:house: Internal

• Add dev container. https://github.com/rescript-lang/rescript-compiler/pull/6962
• Convert more tests to the node test runner. https://github.com/rescript-lang/rescript-compiler/pull/6956
• Remove attribute "internal.arity". https://github.com/rescript-lang/rescript-compiler/pull/7004
• Remove dead modules. https://github.com/rescript-lang/rescript-compiler/pull/7008

:nail_care: Polish

• Improve formatting in the generated js code. https://github.com/rescript-lang/rescript-compiler/pull/6932
  • }\ncatch{ -> } catch {
  • for(let i = 0 ,i_finish = r.length; i < i_finish; ++i){ -> for (let i = 0, i_finish = r.length; i < i_finish; ++i) {
  • while(true) { -> while (true) {
  • Fixed tabulation for switch case bodies
  • Fixed tabulation for throw new Error bodies
  • Removed empty line at the end of switch statement
  • Removed empty default case from switch statement in the generated code
• Optimised the Type Extension runtime code and removed trailing /1 from RE_EXN_ID. https://github.com/rescript-lang/rescript-compiler/pull/6958
• Compact output for anonymous functions. https://github.com/rescript-lang/rescript-compiler/pull/6945 https://github.com/rescript-lang/rescript-compiler/pull/7013
• Rewatch 1.0.9. https://github.com/rescript-lang/rescript-compiler/pull/7010

12.0.0-alpha.1

:rocket: New Feature

• Allow @directive on functions for emitting function level directive code (let serverAction = @directive("'use server'") (~name) => {...}). https://github.com/rescript-lang/rescript-compiler/pull/6756
• Add rewatch to the npm package as an alternative build tool. https://github.com/rescript-lang/rescript-compiler/pull/6762
• Throws an instance of JavaScript's new Error() and adds the extension payload for cause option. https://github.com/rescript-lang/rescript-compiler/pull/6611
• Allow free vars in types for type coercion e :> t. https://github.com/rescript-lang/rescript-compiler/pull/6828
• Allow private in with constraints. https://github.com/rescript-lang/rescript-compiler/pull/6843
• Add regex literals as syntax sugar for @bs.re. https://github.com/rescript-lang/rescript-compiler/pull/6776
• Improved mechanism to determine arity of externals, which is consistent however the type is written. https://github.com/rescript-lang/rescript-compiler/pull/6874 https://github.com/rescript-lang/rescript-compiler/pull/6881 https://github.com/rescript-lang/rescript-compiler/pull/6883
• Add Js.globalThis object binding. https://github.com/rescript-lang/rescript-compiler/pull/6909

:boom: Breaking Change

• Make j and js allowed names for tag functions. https://github.com/rescript-lang/rescript-compiler/pull/6817
• lazy syntax is no longer supported. If you're using it, use Lazy module or React.lazy_ instead. https://github.com/rescript-lang/rescript-compiler/pull/6342
• Remove handling of attributes with bs. prefix (@bs.as -> @as etc.). https://github.com/rescript-lang/rescript-compiler/pull/6643
• Remove obsolete @bs.open feature. https://github.com/rescript-lang/rescript-compiler/pull/6629
• Drop Node.js version <18 support, due to it reaching End-of-Life. https://github.com/rescript-lang/rescript-compiler/pull/6429
• Remove deprecated -bs-super-errors option. https://github.com/rescript-lang/rescript-compiler/pull/6814
• Some global names and old keywords are no longer prefixed. https://github.com/rescript-lang/rescript-compiler/pull/6831
• Remove ml parsing tests and conversion from .ml to .res via format. https://github.com/rescript-lang/rescript-compiler/pull/6848
• Remove support for compiling .ml files, and general cleanup. https://github.com/rescript-lang/rescript-compiler/pull/6852
• Remove rescript convert subcommand. https://github.com/rescript-lang/rescript-compiler/pull/6860
• Remove support for @bs.send.pipe. This also removes all functions in Js_typed_array that rely on @bs.send.pipe. https://github.com/rescript-lang/rescript-compiler/pull/6858 https://github.com/rescript-lang/rescript-compiler/pull/6891
• Remove deprecated Js.Vector and Js.List. https://github.com/rescript-lang/rescript-compiler/pull/6900
• Remove support for %time extension. https://github.com/rescript-lang/rescript-compiler/pull/6924
• Remove caml_external_polyfill module and the related behavior. https://github.com/rescript-lang/rescript-compiler/pull/6925

:bug: Bug Fix

• Fix unhandled cases for exotic idents (allow to use exotic PascalCased identifiers for types). https://github.com/rescript-lang/rescript-compiler/pull/6777 https://github.com/rescript-lang/rescript-compiler/pull/6779 https://github.com/rescript-lang/rescript-compiler/pull/6897
• Fix unused attribute check for @as. https://github.com/rescript-lang/rescript-compiler/pull/6795
• Reactivate unused attribute check for @int. https://github.com/rescript-lang/rescript-compiler/pull/6802
• Fix issue where using partial application ... can generate code that uses Curry at runtime. https://github.com/rescript-lang/rescript-compiler/pull/6872
• Avoid generation of Curry with reverse application |>. https://github.com/rescript-lang/rescript-compiler/pull/6876
• Fix issue where the internal ppx for pipe -> would not use uncurried application in uncurried mode. https://github.com/rescript-lang/rescript-compiler/pull/6878

:house: Internal

• Build with OCaml 5.2.0. https://github.com/rescript-lang/rescript-compiler/pull/6797
• Convert OCaml codebase to snake case style. https://github.com/rescript-lang/rescript-compiler/pull/6702
• Fix -nostdlib internal compiler option. https://github.com/rescript-lang/rescript-compiler/pull/6824
• Remove a number of ast nodes never populated by the .res parser, and resulting dead code. https://github.com/rescript-lang/rescript-compiler/pull/6830
• Remove coercion with 2 types from internal representation. Coercion e : t1 :> t2 was only supported in .ml syntax and never by the .res parser. https://github.com/rescript-lang/rescript-compiler/pull/6829
• Convert caml_format and js_math to .res. https://github.com/rescript-lang/rescript-compiler/pull/6834
• Convert js.ml files to .res. https://github.com/rescript-lang/rescript-compiler/pull/6835
• Remove old .ml tests. https://github.com/rescript-lang/rescript-compiler/pull/6847
• Make compiler libs ready for uncurried mode. https://github.com/rescript-lang/rescript-compiler/pull/6861
• Make tests ready for uncurried mode. https://github.com/rescript-lang/rescript-compiler/pull/6862
• Make gentype tests uncurried. https://github.com/rescript-lang/rescript-compiler/pull/6866
• Remove @@uncurried.swap, which was used for internal tests. https://github.com/rescript-lang/rescript-compiler/pull/6875
• Build the compiler libraries/tests in uncurried mode. https://github.com/rescript-lang/rescript-compiler/pull/6864
• Ignore -uncurried command-line flag. https://github.com/rescript-lang/rescript-compiler/pull/6885
• Cleanup: remove tracking of uncurried state in parser/printer. https://github.com/rescript-lang/rescript-compiler/pull/6888
• Remove %opaque primitive. https://github.com/rescript-lang/rescript-compiler/pull/6892
• Reunify JsxC/JsxU -> Jsx etc. https://github.com/rescript-lang/rescript-compiler/pull/6895
• Remove the transformation of foo(1,2) into Js.Internal.opaqueFullApply(Internal.opaque(f), 1, 2), and change the back-end to treat all applications as uncurried. https://github.com/rescript-lang/rescript-compiler/pull/6893
• Remove @uncurry from ReScript sources (others, tests). https://github.com/rescript-lang/rescript-compiler/pull/6938
• Remove leftover uncurried handling. https://github.com/rescript-lang/rescript-compiler/pull/6939 https://github.com/rescript-lang/rescript-compiler/pull/6940
• Start converting tests from mocha to the node test runner. https://github.com/rescript-lang/rescript-compiler/pull/6956

:nail_care: Polish

• Make the --help arg be prioritized in the CLI, so correctly prints help message and skip other commands. https://github.com/rescript-lang/rescript-compiler/pull/6667
• Remove redundant space for empty return in generated js code. https://github.com/rescript-lang/rescript-compiler/pull/6745
• Remove redundant space for export in generated js code. https://github.com/rescript-lang/rescript-compiler/pull/6560
• Remove redundant space after continue in generated js code. https://github.com/rescript-lang/rescript-compiler/pull/6743
• Remove empty export blocks in generated js code. https://github.com/rescript-lang/rescript-compiler/pull/6744
• Fix indent for returned/thrown/wrapped in parentheses objects in generated js code. https://github.com/rescript-lang/rescript-compiler/pull/6746
• Fix indent in generated js code. https://github.com/rescript-lang/rescript-compiler/pull/6747
• In generated code, use let instead of var. https://github.com/rescript-lang/rescript-compiler/pull/6102
• Turn off transformation for closures inside loops when capturing loop variables, now that let is emitted instead of var. https://github.com/rescript-lang/rescript-compiler/pull/6480
• Improve unused attribute warning message. https://github.com/rescript-lang/rescript-compiler/pull/6787
• Remove internal option use-stdlib from build schema. https://github.com/rescript-lang/rescript-compiler/pull/6778
• Fix Js.Types.JSBigInt payload to use native bigint type. https://github.com/rescript-lang/rescript-compiler/pull/6911
• Deprecate %external extension, which has never been officially introduced. https://github.com/rescript-lang/rescript-compiler/pull/6906
• Deprecate xxxU functions in Belt. https://github.com/rescript-lang/rescript-compiler/pull/6941
• Improve error messages for function arity errors. https://github.com/rescript-lang/rescript-compiler/pull/6990
• Add missing HTML attribute capture to JsxDOM.res. https://github.com/rescript-lang/rescript-compiler/pull/7006

11.1.3

:bug: Bug Fix

• Fix tag function location on compiler error. https://github.com/rescript-lang/rescript-compiler/pull/6816
• Fix Deno compatibility issues on Windows. https://github.com/rescript-lang/rescript-compiler/pull/6850
• Fix issue with infinite loops with type errors on recursive types. https://github.com/rescript-lang/rescript-compiler/pull/6867
• Ignore @uncurry attribute in uncurried mode, to avoid generating calls to Curry at runtime. https://github.com/rescript-lang/rescript-compiler/pull/6869
• Avoid generating calls to Curry when adjusting arity of uncurried functions. https://github.com/rescript-lang/rescript-compiler/pull/6870
• Fix build after calling without -warn-error, see https://github.com/rescript-lang/rescript-compiler/issues/6868 for more details. https://github.com/rescript-lang/rescript-compiler/pull/6877
• Fix issue with uninitialized _param in recursive functions with unit argument. https://github.com/rescript-lang/rescript-compiler/pull/6907

11.1.3-rc.1

:bug: Bug Fix

• Omit standard library dir from load path if -nostdlib is set. https://github.com/rescript-lang/rescript-compiler/pull/6833

11.1.2

:bug: Bug Fix

• Fix issue where capitalised type variables were only allowed in certain positions. https://github.com/rescript-lang/rescript-compiler/pull/6820

11.1.2-rc.1

:rocket: New Feature

• Support Windows 11 ARM (using the x64 binaries in emulation). https://github.com/rescript-lang/rescript-compiler/pull/6813

:bug: Bug Fix

• Fix location of let bindings with attributes. https://github.com/rescript-lang/rescript-compiler/pull/6791
• PPX v4: mark props type in externals as @live to avoid dead code warnings for prop fields in the editor tooling. https://github.com/rescript-lang/rescript-compiler/pull/6796
• Fix issue where optional labels were not taken into account when disambiguating record value construction. https://github.com/rescript-lang/rescript-compiler/pull/6798
• Fix issue in gentype when type Jsx.element surfaces to the user. https://github.com/rescript-lang/rescript-compiler/pull/6808
• Fix inclusion check (impl vs interface) for untagged variants, and fix the outcome printer to show tags. https://github.com/rescript-lang/rescript-compiler/pull/6669
• Fix encoding inside tagged template literals. https://github.com/rescript-lang/rescript-compiler/pull/6810

11.1.1

:bug: Bug Fix

• Fix issue of incorrect switch cases with identical bodies when mixing object and array. https://github.com/rescript-lang/rescript-compiler/pull/6792
• Fix formatter eats comments on the first argument of a uncurried function. https://github.com/rescript-lang/rescript-compiler/pull/6763
• Fix formatter removes parens in pipe operator with anonymous uncurried function. https://github.com/rescript-lang/rescript-compiler/pull/6766