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authorPaul Phillips <paulp@improving.org>2012-10-31 14:08:29 -0700
committerAdriaan Moors <adriaan.moors@epfl.ch>2012-10-31 15:42:14 -0700
commit1e2328ea6a8b592b5a2abe3557dc633e96f688f2 (patch)
tree9df1a526619025705833eb8a5ca1393c9dfeba5f
parent290220bc6f5e1a11e38c67eb3e51ec617f96a1f6 (diff)
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Fix for SI-6597, implicit case class crasher.
It seems to me like every call to scope.lookup in the compiler is a latent bug. If a symbol is overloaded, you get one at random. (See the FIXME comment in f5c336d5660 for more on this.)
-rw-r--r--src/compiler/scala/tools/nsc/typechecker/Namers.scala2
-rw-r--r--test/files/neg/t6597.check4
-rw-r--r--test/files/neg/t6597.scala5
3 files changed, 10 insertions, 1 deletions
diff --git a/src/compiler/scala/tools/nsc/typechecker/Namers.scala b/src/compiler/scala/tools/nsc/typechecker/Namers.scala
index 9e9a22d4d1..e1afe153ad 100644
--- a/src/compiler/scala/tools/nsc/typechecker/Namers.scala
+++ b/src/compiler/scala/tools/nsc/typechecker/Namers.scala
@@ -398,7 +398,7 @@ trait Namers extends MethodSynthesis {
* a module definition or a class definition.
*/
def enterModuleSymbol(tree : ModuleDef): Symbol = {
- var m: Symbol = context.scope.lookup(tree.name)
+ var m: Symbol = context.scope lookupAll tree.name find (_.isModule) getOrElse NoSymbol
val moduleFlags = tree.mods.flags | MODULE
if (m.isModule && !m.isPackage && inCurrentScope(m) && (currentRun.canRedefine(m) || m.isSynthetic)) {
updatePosFlags(m, tree.pos, moduleFlags)
diff --git a/test/files/neg/t6597.check b/test/files/neg/t6597.check
new file mode 100644
index 0000000000..1d52519d1d
--- /dev/null
+++ b/test/files/neg/t6597.check
@@ -0,0 +1,4 @@
+t6597.scala:3: error: illegal combination of modifiers: implicit and case for: class Quux
+ implicit case class Quux(value: Int) extends AnyVal with T
+ ^
+one error found
diff --git a/test/files/neg/t6597.scala b/test/files/neg/t6597.scala
new file mode 100644
index 0000000000..dde53bcc89
--- /dev/null
+++ b/test/files/neg/t6597.scala
@@ -0,0 +1,5 @@
+object Test {
+ trait T extends Any
+ implicit case class Quux(value: Int) extends AnyVal with T
+ object Quux
+}