Release Notes

Dear Community,

On behalf of the Haxe Foundation, we are proud to announce the official release of the Haxe 4.0.0-preview.5! It is available along with the changelog at https://haxe.org/download.

As a preview release, it should not be considered stable. However, we appreciate anyone testing this version which will help us with the real Haxe 4 release. Please report any issues here:

https://github.com/HaxeFoundation/haxe/issues

Thank you very much for your help!

Change Log

2018-10-13: 4.0.0-preview.5

New features:

  • all : support Unicode strings properly on all targets
  • all : support for (key => value in e) syntax for key-value iterators
  • all : added keyValueIterator to Map and its implementations
  • all : support loop-unrolling on for (i in 0...5) (#7365)
  • all : added support for write-mode @:op(a.b)
  • all : support inline call() and inline new expressions (#7425)
  • all : support @:using on type declarations (#7462)
  • all : support XML literal strings but require them to be macro-processed (#7438)
  • all : allow enum values without arguments as default function argument values (#7439)
  • lua : add -D lua-vanilla, which emits code with reduced functionality but no additional lib dependencies

General improvements and optimizations:

  • all : [breaking] reserved operator and overload as keywords (#7413)
  • all : made final on structure fields invariant (#7039)
  • all : [breaking] disallowed static variables that have no type-hint and expression (#6440)
  • all : added display/typeDefinition to display protocol (#7266)
  • all : fixed various display-related problems
  • all : made parser in display mode much more tolerant
  • all : allowed assigning [] where Map is expected (#7426)
  • all : unified various parts of the String API across all targets
  • php : Optimized haxe.ds.Vector (VectorData is not Array anymore)
  • php : Optimized Map.copy() and Array.copy()
  • php : Optimized iterators of Map and native arrays.
  • php : Support native PHP generators. See php.Syntax.yield() and php.Generator
  • js : Updated jQuery extern (js.jquery.*). Supporting jQuery up to 3.3.1.
  • js : updated HTML externs
  • eval : improved object prototype field handling (#7393)
  • eval : optimized int switches (#7481)
  • eval : improved IntMap and StringMap performance
  • eval : improved performance of instance calls

Removals:

  • all : disallowed get_x/set_x property syntax, use get/set instead (#4699)
  • all : disallowed default values on interface variables (#4087)
  • all : disallowed implements Dynamic on non-extern classes (#6191)
  • all : warn about expressions in extern non-inline fields (#5898)
  • all : removed -D use-rtti-doc, always store documentation instead (#7493)
  • all : disallowed macro-in-macro calls (#7496)

Bugfixes:

  • all : fix GC compacting too often in server mode
  • all : [breaking] function () { }(e) is no longer parsed as a call (#5854)
  • all : fixed various minor inlining issues
  • all : disallowed return null from Void-functions (#7198)
  • all : fixed various pattern matching problems
  • all : fixed compiler hang in display mode (#7236)
  • all : fixed the XML printer trimming CDATA content (#7454)
  • all : fixed invalid visibility unification with statics (#7527)
  • php : Escape $ in field names of anonymous objects (#7230)
  • php : Generate switch as if...else if...else... to avoid loose comparison (#7257)
  • cs : fixed bad evaluation order in structures (#7531)
  • eval : fixed various problems with the debugger
  • eval : fixed Vector.fromArrayCopy (#7492)
  • eval : fixed bad string conversions on invalid + operations

Standard Library:

  • all : [breaking] made Lambda functions return Array instead of List (#7097)
  • all : added haxe.iterators package
  • all : improved StringTools.lpad/rpad/htmlEscape implementation
Take the Haxe Survey!