reason - npm Package Versions

3.3.4

Fixes:

• Pipe first braces (2133, 2148).
• Better rtop use directives (2146, 2147).
• foo(~Foo.a) becoming foo(~Fooa=Foo.a) (2136).
• Parse <div> ...c</div> correctly (2137).
• Invalid formatting of first-class module with type constraint (2151).
• Precedence printing of pipe first with underscore sugar as JSX child (2159).
• Correct location for JSX name & extension expression (2166, 2162).
• Lack of space after module type of (2175).
• Outcome printer (editor & interface generator) function signature (2185).
• Precedence issue with unary operators and labeled arguments (2201).
• Type printing of polymorphic variants row fields (2191).
• Pattern parsing inside ternary expressions (2188).

Improvements:

• Preserve empty lines in records and bs objects (2152).
• Make let not = blabla work (not is a keyword) (2197).
• Format doc comments on variant leafs with consistency (2194)
• Single pipe first printing layout (2193).
• Performance. One case where the printer took exponential time (2195).

3.3.3

• More fixes for pipe first (2120, 2119, 2111).
• Fix regressed printing of first-class module (2124).
• Fix local open printing for bs.obj (2123).
• fix printing of foo[(bar + 1)] to foo[bar + 1] (2110).
• Only wrap fun in parentheses when necessary (2033).
• Change all precedence printing to braces for consistency inside JSX (2106).
• Format docblock comments above std attrs on record rows (2105).

3.3.2

Big release! No breaking change. Big shout out to @anmonteiro and @iwanKaramazow!

Major:

• Pipe first |. now got a Reason sugar, ->, with better precedence support than the former (1999, 2078, 2092, 2082, 2087, 2055).
• ReasonReact JSX PPX DOM children spread (2095).
• ReasonReact JSX PPX fragment (2091).
• Other ReasonReact JSX PPX fixes (2088, 2060, 2027, 2024, 2007, 2021, 1963).
• Semicolon relaxation & reporting improvements (2040, 2012, 1968).
• Module parsing & formatting improvements (2061, 2059, 1984, 1949, 1946, 2062).
• Remove extra space in some places after formatting (2047, 2041, 1969, 1966, 2097).
• Much better ... spread errors for everything (1973).
• Fix foo##bar[baz], foo->bar^##baz and other precedences (2050, 2055, 2044, 2044).
• Milder "unknown syntax error" message (1962).

Others:

• Parentheses hugging for multi-line Js.t({foo: bar}) (2074).
• Correctly parse prefix ops in labeled parameters (2071).
• Attach doc attributes before extension sugar (2069).
• Support non-parenthesized label colon type equal optional in type declarations (2058).
• Printf uncurried application when last argument is a callback (2064).
• OCaml rtop syntax printing( 2031).
• Fix Bigarray syntax (2045).
• Parse M.[] (2043).
• Fix printing of polymorphic variant with annotation (2019).
• Format GADT type variants better (2016).
• Better autocomplete for Merlin (1998).
• Print newline after doc comments before attributes (1869).
• Fix inconsistent printing of opening extension expressions (1979).
• Fix error when parsing let x=-.1; and others (1945).
• Arguments no longer accidentally punned when they carry attributes (1955).

3.1.0

• New pipe sugar for function call argument in arbitrary position: foo |> map(_, addOne) |> filter(_, isEven) (1804).
• BuckleScript [@bs] uncurry sugar: [@bs] foo(bar, baz) is now foo(. bar, baz). Same for declaration (1803, 1832).
• Trailing commas for record, list, array, and everything else (1775, 1821)!
• Better comments interleaving (1769, 1770, 1817)
• Better JSX printing: <Foo bar=<Baz />>, <div><span></span></div> (1745, 1762).
• switch now mandates parentheses around the value. Non-breaking, as we currently support parentheses-less syntax but print parens (1720, 1733).
• Attributes on open expressions (1833).
• Better OCaml 4.06 support (1709).
• Extension points sugar: let%foo a = 1 (1703)!
• Final expression in a function body now also has semicolon. Easier to add new expressions afterward now (1693)!
• Better editor printing (outcome printer) of Js.t object types, @bs types, unary variants and infix operators (1688, 1784, 1831).
• Parser doesn't throw Location.Error anymore; easier exception handling when refmt is used programmatically (1695).

3.0.2

• JSX: fix most of the parsing errors (#856 #904 1181 1263 1292)!! Thanks @IwanKaramazow!
• In-editor syntax error messages are now fixed! They should be as good as the terminal ones (1654).
• Polymorphic variants can now parse and print `foo(()) as `foo() (1560).
• Variant values with annotations like Some((x: string)) can now be Some(x: string) (1576).
• Remove few places remaining that accidentally print fun for functions (1588).
• Better record & object printing (1593, 1596).
• Fewer unnecessary wrappings in type declarations and negative constants (1616, 1634).
• Parse and print attributes on object type rows (1637).
• Better printing of externals with attributes (1640).
• Better printing for multiple type equations in a module type in a function argument (1641).
• Better printing for unary -. in labeled argument (1642).

3.0.0

Our biggest release! Please see our blog post on https://reasonml.github.io/blog/2017/10/27/reason3.html.

Summary: this is, practically speaking, a non-breaking change. You can mix and match two projects with different syntax versions in BuckleScript 2 (which just got release too! Go check), and they'll Just Work (tm).

To upgrade your own project, we've released a script, https://github.com/reasonml/upgradeSyntaxFrom2To3

Improvements:

• Much better printing for most common idioms.
• Even better infix operators formatting for ==, &&, > and the rest (1380, 1386, etc.).
• More predictable keyword swapping behavior (1539).
• BuckleScript's Js.t {. foo: bar} now formats to {. "foo": bar}, just like its value counterpart ([%bs.obj {foo: 1}] to {"foo": bar}.
• [@foo], [@@foo] and [@@@foo] are now unified into [@foo] and placed in front instead of at the back.
• ! is now the logical negation. It was not previously.
• Dereference was !. Now it's a postfix ^.
• Labeled argument with type now has punning!
• String concat is now ++ instead of the old ^.
• For native, Reason now works on OCaml 4.05 and the latest topkg (1438).
• Record field punning for module field prefix now prints well too: {M.x, y} is {M.x: x, y: y}.
• JSX needs {} like in JS.
• Fix reason-specific keywords printing in interface files (e.g. ==, match, method).
• Record punning with renaming (1517).
• The combination of function label renaming + type annotation + punning is now supported!
• Label is now changed from ::foo back to ~foo, just like for OCaml.
• Fix LOTS of bugs regarding parsing & formatting (closing around 100 improvement-related issues!).
• Official refmt.js, with public API. See README.md.
• Official refmt native public API too.
• New JS application/abstraction syntax. Yes yes, we know. Despite the 100+ fixes, this one's all you cared about. Modern software engineering ¯\_(ツ)_/¯. Please do read the blog post though.

Breaking Changes:

• Remove --use-stdin and --is-interface-pp option from refmt; they've been deprecated for a long time now
• Remove unused binaries: reup, etc.
• Remove the old reactjs_jsx_ppx.ml. You've all been on reactjs_jsx_ppx_2.ml for a long time now.
• Reserved keywords can no longer be used as an external declaration's labels.

Deprecated:

• Deprecate --add-printers option from refmt; we'll have a better strategy soon.

1.13.7

• Much better infix operators (e.g. |>) formatting! (1259)
• Official refmt.js, with public API. See README.md. We've back-ported this into the 1.13.7 release =)