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lein-scalac's Introduction

lein-scalac

Compile Scala source from Leiningen.

Usage

Add [lein-scalac "0.1.0"] to :plugins project.clj. (Or :dev-dependencies on Leiningen versions earlier than 1.7.0)

Set :scala-source-paths in project.clj, usually to "src/scala", and place your .scala source files in there.

Run lein scalac to compile them to .class files.

If you want scalac to run automatically, add :prep-tasks ["scalac"] to project.clj

For Leiningen 1.x support, need to add leiningen.hooks.scalac to :hooks in project.clj.

If you need runtime features of Scala you'll have to declare a dependency on scala-library like so:

:dependencies [org.scala-lang/scala-library "2.9.1"]

License

Copyright © 2012 Phil Hagelberg and Scott Clasen

Distributed under the Eclipse Public License, the same as Clojure.

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lein-scalac's Issues

can't compile with lein scalac

lein scalac

Compiling 1 source file to /Users/stone/hack/proj/classes
Element '/Users/stone/hack/proj/test-resources' does not exist.
Element '/Users/stone/hack/proj/resources' does not exist.
scala.tools.nsc.MissingRequirementError: object scala not found.
at scala.tools.nsc.symtab.Definitions$definitions$.getModuleOrClass(Definitions.scala:655)
at scala.tools.nsc.symtab.Definitions$definitions$.getModule(Definitions.scala:605)
at scala.tools.nsc.symtab.Definitions$definitions$.ScalaPackage(Definitions.scala:145)
at scala.tools.nsc.symtab.Definitions$definitions$.ScalaPackageClass(Definitions.scala:146)
at scala.tools.nsc.symtab.Definitions$definitions$.AnyClass(Definitions.scala:176)
at scala.tools.nsc.symtab.Definitions$definitions$.init(Definitions.scala:814)
at scala.tools.nsc.Global$Run.(Global.scala:697)
at scala.tools.ant.Scalac.executeInternal(Scalac.scala:629)
at scala.tools.ant.Scalac.execute(Scalac.scala:577)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:90)
at clojure.lang.Reflector.invokeNoArgInstanceMember(Reflector.java:265)
at leiningen.scalac$scalac.invoke(scalac.clj:26)
at clojure.lang.Var.invoke(Var.java:365)
at clojure.lang.AFn.applyToHelper(AFn.java:161)
at clojure.lang.Var.applyTo(Var.java:482)
at clojure.core$apply.invoke(core.clj:542)
at leiningen.core$apply_task.invoke(core.clj:264)
at leiningen.core$_main.doInvoke(core.clj:331)
at clojure.lang.RestFn.invoke(RestFn.java:410)
at clojure.lang.AFn.applyToHelper(AFn.java:161)
at clojure.lang.RestFn.applyTo(RestFn.java:132)
at clojure.core$apply.invoke(core.clj:542)
at leiningen.core$_main.invoke(core.clj:334)
at user$eval42.invoke(NO_SOURCE_FILE:1)
at clojure.lang.Compiler.eval(Compiler.java:5424)
at clojure.lang.Compiler.eval(Compiler.java:5391)
at clojure.core$eval.invoke(core.clj:2382)
at clojure.main$eval_opt.invoke(main.clj:235)
at clojure.main$initialize.invoke(main.clj:254)
at clojure.main$script_opt.invoke(main.clj:270)
at clojure.main$main.doInvoke(main.clj:354)
at clojure.lang.RestFn.invoke(RestFn.java:457)
at clojure.lang.Var.invoke(Var.java:377)
at clojure.lang.AFn.applyToHelper(AFn.java:172)
at clojure.lang.Var.applyTo(Var.java:482)
at clojure.main.main(main.java:37)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at jline.ConsoleRunner.main(ConsoleRunner.java:69)
Exception in thread "main" java.lang.reflect.InvocationTargetException
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at jline.ConsoleRunner.main(ConsoleRunner.java:69)
Caused by: Compile failed because of an internal compiler error (object scala not found.); see the error output for details. (NO_SOURCE_FILE:0)
at clojure.lang.Compiler.eval(Compiler.java:5440)
at clojure.lang.Compiler.eval(Compiler.java:5391)
at clojure.core$eval.invoke(core.clj:2382)
at clojure.main$eval_opt.invoke(main.clj:235)
at clojure.main$initialize.invoke(main.clj:254)
at clojure.main$script_opt.invoke(main.clj:270)
at clojure.main$main.doInvoke(main.clj:354)
at clojure.lang.RestFn.invoke(RestFn.java:457)
at clojure.lang.Var.invoke(Var.java:377)
at clojure.lang.AFn.applyToHelper(AFn.java:172)
at clojure.lang.Var.applyTo(Var.java:482)
at clojure.main.main(main.java:37)
... 5 more
Caused by: Compile failed because of an internal compiler error (object scala not found.); see the error output for details.
at scala.tools.ant.ScalaTask$class.buildError(ScalaMatchingTask.scala:27)
at scala.tools.ant.ScalaMatchingTask.buildError(ScalaMatchingTask.scala:30)
at scala.tools.ant.Scalac.executeInternal(Scalac.scala:634)
at scala.tools.ant.Scalac.execute(Scalac.scala:577)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at clojure.lang.Reflector.invokeMatchingMethod(Reflector.java:90)
at clojure.lang.Reflector.invokeNoArgInstanceMember(Reflector.java:265)
at leiningen.scalac$scalac.invoke(scalac.clj:26)
at clojure.lang.Var.invoke(Var.java:365)
at clojure.lang.AFn.applyToHelper(AFn.java:161)
at clojure.lang.Var.applyTo(Var.java:482)
at clojure.core$apply.invoke(core.clj:542)
at leiningen.core$apply_task.invoke(core.clj:264)
at leiningen.core$_main.doInvoke(core.clj:331)
at clojure.lang.RestFn.invoke(RestFn.java:410)
at clojure.lang.AFn.applyToHelper(AFn.java:161)
at clojure.lang.RestFn.applyTo(RestFn.java:132)
at clojure.core$apply.invoke(core.clj:542)
at leiningen.core$_main.invoke(core.clj:334)
at user$eval42.invoke(NO_SOURCE_FILE:1)
at clojure.lang.Compiler.eval(Compiler.java:5424)
... 16 more

Errors with newer scala versions

I am looking to add some scala code to my project, and the version of scala I wish to use (2.10.1) is different from the one lein-scalac depends on (2.9.1).
It isn't clear how to do that - but depending on 2.10.1 leads to Scala compilation errors. (Depending on 2.9.1 works okay.)

I modified the dependencies of the lein-scalac plugin to 2.10.1 and performed a local repository install (into $LOCAL_MAVEN_REPO) - and that does allow me to move with 2.10.1

What is the right way to go about solving this issue? If it helps, I can paste the error output of "lein scalac" but I believe it will only clutter up this report without much value.

Thanks for the plugin. (and, of course, leiningen!)

Compiling with Scala 2.10+

Attempting to compile a Scala project using 2.10 or 2.11 results in the following error:

scala.tools.nsc.MissingRequirementError: object scala.reflect.Code not found.
(stack trace omitted)

org.apache.tools.ant.BuildException: Compile failed because of an internal compiler error (object scala.reflect.Code not found.); see the error output for details.

What needs to be done in order to support newer versions of Scala?

Typo in README.md

:scala-source-paths should be :scala-source-path (trailing 's'), resulting in an NPE from lein scalac

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