sjrd

var $fround = (Math.fround || (((typeof Float32Array) !== "undefined") ? (function(v) {
  var array = new Float32Array(1);
  array[0] = v;
  return array[0]
}) : (function(v) {
  if (((v !== v) || (v === 0))) {
    return v
  };
  var isNegative = (v < 0);
  var av = (isNegative ? (-v) : v);

sjrd

Here is a non-exhaustive list of libraries that are known to support Scala.js 1.x at the moment. They are shown with sbt libraryDependencies syntax, and grouped by organization.

Libraries

"org.scala-js" %%% "scalajs-dom" % "1.0.0"
"org.scala-js" %%% "scalajs-java-time" % "1.0.0"
"org.scala-js" %%% "scalajs-java-logging" % "1.0.0"

sjrd

Advance the support of Scala.js in Dotty, a tutorial

Dotty contains preliminary support for Scala.js under the flag -scalajs. Or rather, it contains the infrastructure for preliminary support. It is far from being actually usable, but this is where you can help!

This small tutorial walks you through a few steps that you can do to further the support of Scala.js in Dotty. Even if you do not typically contribute to a compiler, this can be your chance. It is not very difficult, given that there already exists an extensive test suite, as well as a working implementation for scalac.

sjrd

// source code
def test3(x: Int, y: Int): Int = (x: @switch) match {
  case 6 if y > 5 => 1
  //case 6 => 2
  case 12 => 3
  case 14 => 4
  case _ => 5
}

// dotty emits this if `case 6 =>` is present

sjrd

C:\Users\Sepi\Documents\Projets\dotty>sbt
[info] Loading settings for project global-plugins from plugins.sbt ...
[info] Loading global plugins from C:\Users\Sepi\.sbt\1.0\plugins
[info] Loading settings for project dotty-build-build from build.sbt ...
[info] Loading project definition from C:\Users\Sepi\Documents\Projets\dotty\project\project
[info] Loading settings for project dotty-build from build.sbt,inject-sbt-dotty.sbt,plugins.sbt,scripted.sbt ...
[info] Loading project definition from C:\Users\Sepi\Documents\Projets\dotty\project
[info] Updating ProjectRef(uri("file:/C:/Users/Sepi/Documents/Projets/dotty/project/"), "dotty-build")...
[info] Done updating.
[warn] There may be incompatibilities among your library dependencies.

sjrd

diff --cc ci/checksizes.sh
index ea2bc7b11,38da8916e..000000000
--- a/ci/checksizes.sh
+++ b/ci/checksizes.sh
@@@ -17,7 -20,10 +17,10 @@@ case $FULLVER i
    2.13.0-M4)
      VER=2.13.0-M4
      ;;
+   2.13.0-M5)
+     VER=2.13.0-M5

sjrd

package <empty> {
  final lazy module val foo: foo$ = new foo$()
  @scala.annotation.internal.SourceFile("tests/pos/t10387b.scala") final module 
    class
   foo$() extends Object() { 
    @scala.annotation.internal.Child[foo.Bit1]() @
      scala.annotation.internal.Child
    [foo.Bit0]() @scala.annotation.internal.Child[foo.One]() sealed abstract 
      class
     num() extends Object() {}

sjrd

Started by upstream project "scalajs-matrix-build" build number 6169
originally caused by:
 Started by upstream project "scalajs-nightly-0.6.x" build number 56
 originally caused by:
  Started by timer
Building remotely on lampscalatst3-a (auxjvm checkin nightly) in workspace /localhome/jenkins/a/workspace/scalajs-task-worker_2
Wiping out workspace first.
Cloning the remote Git repository
Cloning repository https://github.com/scala-js/scala-js/
 > git init /localhome/jenkins/a/workspace/scalajs-task-worker_2 # timeout=10

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$ /path/to/d8 --harmony-bigint sha512-with-bigint.js
SHA512: 5,630,596.850000001 us +- 27,217.38445487771 us

$ /path/to/d8 sha512-with-runtime-long.js
SHA512: 89,810.44117647059 us +- 613.7286544584218 us

sjrd

enablePlugins(ScalaJSPlugin)

scalaVersion := "2.12.4"

scalaJSUseMainModuleInitializer in Test := true
scalaJSModuleKind := ModuleKind.CommonJSModule