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| author | Adriaan Moors <adriaan.moors@typesafe.com> | 2013-01-10 14:43:00 -0800 |
|---|---|---|
| committer | Adriaan Moors <adriaan.moors@typesafe.com> | 2013-01-10 16:04:57 -0800 |
| commit | 8475807f540a698c8456bc113b9c5b9186ee2cf5 (patch) | |
| tree | bc0b734a95c90484a9252c24df2df951589bfcc0 /test | |
| parent | f219ade08ed8174c7bded654e8070f4b61843513 (diff) | |
| download | scala-8475807f540a698c8456bc113b9c5b9186ee2cf5.tar.gz scala-8475807f540a698c8456bc113b9c5b9186ee2cf5.tar.bz2 scala-8475807f540a698c8456bc113b9c5b9186ee2cf5.zip | |
SI-6955 switch emission no longer foiled by type alias
dealias the type of the scrutinee before checking it's switchable
now with tests! (using IcodeTest since javap is not available everywhere)
Diffstat (limited to 'test')
| -rw-r--r-- | test/files/run/t6955.check | 1 | ||||
| -rw-r--r-- | test/files/run/t6955.scala | 26 |
2 files changed, 27 insertions, 0 deletions
diff --git a/test/files/run/t6955.check b/test/files/run/t6955.check new file mode 100644 index 0000000000..0cfbf08886 --- /dev/null +++ b/test/files/run/t6955.check @@ -0,0 +1 @@ +2 diff --git a/test/files/run/t6955.scala b/test/files/run/t6955.scala new file mode 100644 index 0000000000..2610acdec4 --- /dev/null +++ b/test/files/run/t6955.scala @@ -0,0 +1,26 @@ +import scala.tools.partest.IcodeTest + +class Switches { + type Tag = Byte + + def switchBad(i: Tag): Int = i match { // notice type of i is Tag = Byte + case 1 => 1 + case 2 => 2 + case 3 => 3 + case _ => 0 + } + + def switchOkay(i: Byte): Int = i match { // notice type of i is Byte + case 1 => 1 + case 2 => 2 + case 3 => 3 + case _ => 0 + } +} + +object Test extends IcodeTest { + // ensure we get two switches out of this -- ignore the rest of the output for robustness + // exclude the constant we emit for the "SWITCH ..." string below (we get the icode for all the code you see in this file) + override def show() = println(collectIcode("").filter(x => x.indexOf("SWITCH ...") >= 0 && x.indexOf("CONSTANT(") == -1).size) +} + |