ScalaCL: Type mismatch

[ochafik]

From @ekasitk on March 18, 2014 5:49

By these two lines:

val input = Array(1,2,3,4,5).cl
val output = input.map( (i:Int) => 1).toArray

the compiler plugin generates the following error in the 2nd line. I use scalacl-0.2 with javacl-1.0.0-RC2.

[scalacl] Test.scala:36 transformed Array[Int].foreach into equivalent while loop.
[scalacl] Converted <<<
1

to <<<
(1)

scala.tools.nsc.symtab.Types$TypeError: type mismatch;
found : Int => Int
required: Int => Int(1)
at scala.tools.nsc.typechecker.Contexts$Context.error(Contexts.scala:298)
at scala.tools.nsc.typechecker.Infer$Inferencer.error(Infer.scala:207)
at scala.tools.nsc.typechecker.Infer$Inferencer.typeError(Infer.scala:21
7) at scala.tools.nsc.typechecker.Infer$Inferencer.typeErrorTree(Infer.scal
a:232)
at scala.tools.nsc.typechecker.Typers$Typer.adapt(Typers.scala:936)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4283)
at scala.tools.nsc.typechecker.Typers$Typer.typedArg(Typers.scala:2191)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$typedArgs$3.apply(T
ypers.scala:2204)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$typedArgs$3.apply(T
ypers.scala:2203)
at scala.Tuple3$Zipped$$anonfun$map$1.apply(Tuple3.scala:66)
at scala.Tuple3$Zipped$$anonfun$map$1.apply(Tuple3.scala:64)
at scala.collection.LinearSeqOptimized$class.foreach(LinearSeqOptimized.
scala:59)
at scala.collection.immutable.List.foreach(List.scala:76)
at scala.Tuple3$Zipped.map(Tuple3.scala:64)
at scala.tools.nsc.typechecker.Typers$Typer.typedArgs(Typers.scala:2203)
at scala.tools.nsc.typechecker.Typers$Typer.doTypedApply(Typers.scala:24
23)
at scala.tools.nsc.typechecker.Typers$Typer.typedApply$1(Typers.scala:33
74)
at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:4107)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4274)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$typedApply$1$1.appl
y(Typers.scala:3356)
at scala.tools.nsc.typechecker.Typers$Typer$$anonfun$typedApply$1$1.appl
y(Typers.scala:3356)
at scala.tools.nsc.typechecker.Typers$Typer.silent(Typers.scala:624)
at scala.tools.nsc.typechecker.Typers$Typer.typedApply$1(Typers.scala:33
56)
at scala.tools.nsc.typechecker.Typers$Typer.typed1(Typers.scala:4107)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4274)
at scala.tools.nsc.typechecker.Typers$Typer.typed(Typers.scala:4334)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1.scalacl$plu
gin$ScalaCLFunctionsTransformComponent$$anon$$convertFunctionToCLFunction(ScalaC
LFunctionsTransformComponent.scala:283)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1$$anonfun$tr
ansform$2.apply(ScalaCLFunctionsTransformComponent.scala:325)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1$$anonfun$tr
ansform$2.apply(ScalaCLFunctionsTransformComponent.scala:324)
at scalacl.plugin.TreeBuilders$class.msg(TreeBuilders.scala:61)
at scalacl.plugin.ScalaCLFunctionsTransformComponent.msg(ScalaCLFunction
sTransformComponent.scala:52)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1.transform(S
calaCLFunctionsTransformComponent.scala:324)
at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:845)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transf
orm(TypingTransformers.scala:53)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1.transform(S
calaCLFunctionsTransformComponent.scala:355)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transform$4.apply(Tree
s.scala:777)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transform$4.apply(Tree
s.scala:776)
at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:899)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:38)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:31)
at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:775)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transf
orm(TypingTransformers.scala:53)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1.transform(S
calaCLFunctionsTransformComponent.scala:355)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transformStats$1.apply
(Trees.scala:891)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transformStats$1.apply
(Trees.scala:889)
at scala.collection.immutable.List.loop$1(List.scala:148)
at scala.collection.immutable.List.mapConserve(List.scala:164)
at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:889)
at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:799)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transf
orm(TypingTransformers.scala:53)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1.transform(S
calaCLFunctionsTransformComponent.scala:355)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transform$5.apply(Tree
s.scala:783)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transform$5.apply(Tree
s.scala:781)
at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:899)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:38)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:31)
at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:780)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transf
orm(TypingTransformers.scala:53)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1.transform(S
calaCLFunctionsTransformComponent.scala:355)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transformStats$1.apply
(Trees.scala:891)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transformStats$1.apply
(Trees.scala:889)
at scala.collection.immutable.List.loop$1(List.scala:148)
at scala.collection.immutable.List.mapConserve(List.scala:164)
at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:889)
at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:797)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.scala$
tools$nsc$transform$TypingTransformers$TypingTransformer$$super$transform(Typing
Transformers.scala:49)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonf
un$transform$1.apply(TypingTransformers.scala:49)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonf
un$transform$1.apply(TypingTransformers.scala:49)
at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:899)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:38)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:31)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transf
orm(TypingTransformers.scala:49)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1.transform(S
calaCLFunctionsTransformComponent.scala:355)
at scala.tools.nsc.ast.Trees$Transformer.transformTemplate(Trees.scala:8
75)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transform$3.apply(Tree
s.scala:772)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transform$3.apply(Tree
s.scala:771)
at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:899)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:38)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:31)
at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:770)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transf
orm(TypingTransformers.scala:53)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1.transform(S
calaCLFunctionsTransformComponent.scala:355)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transformStats$1.apply
(Trees.scala:891)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transformStats$1.apply
(Trees.scala:889)
at scala.collection.immutable.List.loop$1(List.scala:148)
at scala.collection.immutable.List.mapConserve(List.scala:164)
at scala.tools.nsc.ast.Trees$Transformer.transformStats(Trees.scala:889)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transform$1.apply(Tree
s.scala:761)
at scala.tools.nsc.ast.Trees$Transformer$$anonfun$transform$1.apply(Tree
s.scala:761)
at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:899)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:38)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:31)
at scala.tools.nsc.ast.Trees$Transformer.transform(Trees.scala:760)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.scala$
tools$nsc$transform$TypingTransformers$TypingTransformer$$super$transform(Typing
Transformers.scala:49)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonf
un$transform$2.apply(TypingTransformers.scala:51)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer$$anonf
un$transform$2.apply(TypingTransformers.scala:51)
at scala.tools.nsc.ast.Trees$Transformer.atOwner(Trees.scala:899)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:38)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.atOwne
r(TypingTransformers.scala:31)
at scala.tools.nsc.transform.TypingTransformers$TypingTransformer.transf
orm(TypingTransformers.scala:51)
at scalacl.plugin.ScalaCLFunctionsTransformComponent$$anon$1.transform(S
calaCLFunctionsTransformComponent.scala:355)
at scala.tools.nsc.ast.Trees$Transformer.transformUnit(Trees.scala:892)
at scala.tools.nsc.transform.Transform$Phase.apply(Transform.scala:30)
at scala.tools.nsc.Global$GlobalPhase.applyPhase(Global.scala:329)
at scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:
297)
at scala.tools.nsc.Global$GlobalPhase$$anonfun$run$1.apply(Global.scala:
297)
at scala.collection.Iterator$class.foreach(Iterator.scala:772)
at scala.collection.mutable.ListBuffer$$anon$1.foreach(ListBuffer.scala:
318)
at scala.tools.nsc.Global$GlobalPhase.run(Global.scala:297)
at scala.tools.nsc.Global$Run.compileSources(Global.scala:953)
at scala.tools.nsc.Global$Run.compile(Global.scala:1041)
at scala.tools.nsc.Main$.process(Main.scala:106)
at scala.tools.nsc.Main$.main(Main.scala:123)
at scala.tools.nsc.Main.main(Main.scala)
warning: [scalacl] Test.scala:35 An unexpected error occurred while attempting an optimization

Copied from original issue: nativelibs4java/nativelibs4java#486