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| author | Martin Odersky <odersky@gmail.com> | 2015-10-23 09:46:51 +0200 |
|---|---|---|
| committer | Martin Odersky <odersky@gmail.com> | 2015-10-23 09:46:51 +0200 |
| commit | f786ce5903670c7496e8a295ec1a49a6e512c896 (patch) | |
| tree | df2788decf5bafcff34c9d80e98219e7d4da63f2 /src | |
| parent | 82afe5f3f4d0286a0202a959e03871eb7454dbec (diff) | |
| download | dotty-f786ce5903670c7496e8a295ec1a49a6e512c896.tar.gz dotty-f786ce5903670c7496e8a295ec1a49a6e512c896.tar.bz2 dotty-f786ce5903670c7496e8a295ec1a49a6e512c896.zip | |
Don't drop impure expressions when eliding isInstanceOf tests.
Diffstat (limited to 'src')
| -rw-r--r-- | src/dotty/tools/dotc/transform/TypeTestsCasts.scala | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/dotty/tools/dotc/transform/TypeTestsCasts.scala b/src/dotty/tools/dotc/transform/TypeTestsCasts.scala index 4ce64da33..98b8357b9 100644 --- a/src/dotty/tools/dotc/transform/TypeTestsCasts.scala +++ b/src/dotty/tools/dotc/transform/TypeTestsCasts.scala @@ -47,7 +47,7 @@ trait TypeTestsCasts { def transformIsInstanceOf(expr:Tree, argType: Type): Tree = { def argCls = argType.classSymbol - if (expr.tpe <:< argType) + if ((expr.tpe <:< argType) && isPureExpr(expr)) Literal(Constant(true)) withPos tree.pos else if (argCls.isPrimitiveValueClass) if (qualCls.isPrimitiveValueClass) Literal(Constant(qualCls == argCls)) withPos tree.pos |