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| author | Martin Odersky <odersky@gmail.com> | 2017-02-02 13:47:45 +1100 |
|---|---|---|
| committer | Martin Odersky <odersky@gmail.com> | 2017-02-02 13:49:54 +1100 |
| commit | 4585dcbaeb75df072f1a50ea6b7a9cb3fcfad4ee (patch) | |
| tree | aac7bc4e5fe6fc239a5e1fd6b239751eae126281 /compiler/src/dotty/tools/dotc/ast/tpd.scala | |
| parent | 64332a794c05cbf21491eaf0bfdf4482a80b1b10 (diff) | |
| download | dotty-4585dcbaeb75df072f1a50ea6b7a9cb3fcfad4ee.tar.gz dotty-4585dcbaeb75df072f1a50ea6b7a9cb3fcfad4ee.tar.bz2 dotty-4585dcbaeb75df072f1a50ea6b7a9cb3fcfad4ee.zip | |
Fix #1568 - avoid transforming error trees
If a tree has type error, subtrees may not have an assigned type.
Therefore we should avoid transforming such trees.
Diffstat (limited to 'compiler/src/dotty/tools/dotc/ast/tpd.scala')
| -rw-r--r-- | compiler/src/dotty/tools/dotc/ast/tpd.scala | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/compiler/src/dotty/tools/dotc/ast/tpd.scala b/compiler/src/dotty/tools/dotc/ast/tpd.scala index 433808e8e..565ec5ce2 100644 --- a/compiler/src/dotty/tools/dotc/ast/tpd.scala +++ b/compiler/src/dotty/tools/dotc/ast/tpd.scala @@ -573,6 +573,8 @@ object tpd extends Trees.Instance[Type] with TypedTreeInfo { Try(tree: Tree)(expr, cases, finalizer) } + override def skipTransform(tree: Tree)(implicit ctx: Context) = tree.tpe.isError + implicit class TreeOps[ThisTree <: tpd.Tree](val tree: ThisTree) extends AnyVal { def isValue(implicit ctx: Context): Boolean = |