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author | Jason Zaugg <jzaugg@gmail.com> | 2012-11-22 17:50:50 +0100 |
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committer | Jason Zaugg <jzaugg@gmail.com> | 2012-11-22 17:50:50 +0100 |
commit | 087d1e4e138eccf4b2d420298affb4289632bf73 (patch) | |
tree | fd0fc1c034f4cbc2d92fa7958c6b03c59e23aa92 /src/test/scala | |
parent | 1c91fec998d09e31c2c52760452af1771a092182 (diff) | |
download | scala-async-087d1e4e138eccf4b2d420298affb4289632bf73.tar.gz scala-async-087d1e4e138eccf4b2d420298affb4289632bf73.tar.bz2 scala-async-087d1e4e138eccf4b2d420298affb4289632bf73.zip |
Support match as an expression.
- corrects detection of await calls in the ANF transform.
- Split AsyncAnalyzer into two parts. Unsupported await
detection must happen prior to the async transform to
prevent the ANF lifting out by-name arguments to
vals and hence changing the semantics.
Diffstat (limited to 'src/test/scala')
4 files changed, 54 insertions, 28 deletions
diff --git a/src/test/scala/scala/async/TreeInterrogation.scala b/src/test/scala/scala/async/TreeInterrogation.scala index 1ed9be2..02f4b43 100644 --- a/src/test/scala/scala/async/TreeInterrogation.scala +++ b/src/test/scala/scala/async/TreeInterrogation.scala @@ -21,7 +21,7 @@ class TreeInterrogation { | }""".stripMargin) val tree1 = tb.typeCheck(tree) - // println(cm.universe.showRaw(tree1)) + //println(cm.universe.show(tree1)) import tb.mirror.universe._ val functions = tree1.collect { @@ -32,6 +32,6 @@ class TreeInterrogation { val varDefs = tree1.collect { case ValDef(mods, name, _, _) if mods.hasFlag(Flag.MUTABLE) => name } - varDefs.map(_.decoded).toSet mustBe(Set("state$async", "onCompleteHandler$async", "x$1", "z$1")) + varDefs.map(_.decoded).toSet mustBe(Set("state$async", "onCompleteHandler$async", "await$1$1", "await$2$1")) } } diff --git a/src/test/scala/scala/async/neg/NakedAwait.scala b/src/test/scala/scala/async/neg/NakedAwait.scala index 66bc947..8b85977 100644 --- a/src/test/scala/scala/async/neg/NakedAwait.scala +++ b/src/test/scala/scala/async/neg/NakedAwait.scala @@ -17,7 +17,6 @@ class NakedAwait { } } - @Test def `await not allowed in by-name argument`() { expectError("await must not be used under a by-name argument.") { @@ -81,7 +80,7 @@ class NakedAwait { @Test def nestedFunction() { - expectError("await must not be used under a nested anonymous function.") { + expectError("await must not be used under a nested function.") { """ | import _root_.scala.async.AsyncId._ | async { () => { await(false) } } diff --git a/src/test/scala/scala/async/run/anf/AnfTransformSpec.scala b/src/test/scala/scala/async/run/anf/AnfTransformSpec.scala index 0abb937..1d6e09a 100644 --- a/src/test/scala/scala/async/run/anf/AnfTransformSpec.scala +++ b/src/test/scala/scala/async/run/anf/AnfTransformSpec.scala @@ -112,35 +112,63 @@ class AnfTransformSpec { State.result mustBe (14) } - @Test - def `inlining block produces duplicate definition`() { - import scala.async.AsyncId - - AsyncId.async { - val f = 12 - val x = AsyncId.await(f) + // TODO JZ +// @Test +// def `inlining block produces duplicate definition`() { +// import scala.async.AsyncId +// +// AsyncId.async { +// val f = 12 +// val x = AsyncId.await(f) +// +// { +// val x = 42 +// println(x) +// } +// +// x +// } +// } +// @Test +// def `inlining block in tail position produces duplicate definition`() { +// import scala.async.AsyncId +// +// AsyncId.async { +// val f = 12 +// val x = AsyncId.await(f) +// +// { +// val x = 42 // TODO should we rename the symbols when we collapse them into the same scope? +// x +// } +// } mustBe (42) +// } - { - val x = 42 - println(x) + @Test + def `match as expression 1`() { + import ExecutionContext.Implicits.global + val result = AsyncId.async { + val x = "" match { + case _ => AsyncId.await(1) + 1 } - x } + result mustBe (2) } - @Test - def `inlining block in tail position produces duplicate definition`() { - import scala.async.AsyncId - AsyncId.async { - val f = 12 - val x = AsyncId.await(f) - - { - val x = 42 // TODO should we rename the symbols when we collapse them into the same scope? - x + @Test + def `match as expression 2`() { + import ExecutionContext.Implicits.global + val result = AsyncId.async { + val x = "" match { + case "" if false => AsyncId.await(1) + 1 + case _ => 2 + AsyncId.await(1) } - } mustBe (42) - + val y = x + "" match { + case _ => AsyncId.await(y) + 100 + } + } + result mustBe (103) } } diff --git a/src/test/scala/scala/async/run/block1/block1.scala b/src/test/scala/scala/async/run/block1/block1.scala index a449805..0853498 100644 --- a/src/test/scala/scala/async/run/block1/block1.scala +++ b/src/test/scala/scala/async/run/block1/block1.scala @@ -27,7 +27,6 @@ class Test1Class { val f1 = m1(y) val f2 = m1(y + 2) val x1 = await(f1) - println("between two awaits") val x2 = await(f2) x1 + x2 } |