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| author | Eugene Burmako <xeno.by@gmail.com> | 2014-01-19 23:00:09 +0300 |
|---|---|---|
| committer | Eugene Burmako <xeno.by@gmail.com> | 2014-01-20 09:48:12 +0300 |
| commit | 936d60a2621088ba463a44c2f2d6450986022169 (patch) | |
| tree | 4137839890784150dfc2f18c308ed1ae33a10a42 /test/files/neg/t8158.check | |
| parent | 6a6b485fe98890f73a03753e3981be5fa580ed02 (diff) | |
| download | scala-936d60a2621088ba463a44c2f2d6450986022169.tar.gz scala-936d60a2621088ba463a44c2f2d6450986022169.tar.bz2 scala-936d60a2621088ba463a44c2f2d6450986022169.zip | |
SI-8158 compiler hangs printing out fancy types
Apparently, even though the compiler has safeguards against infinite type
printouts, having a depth counter, we didn’t account for the cases when
printouts are both self-referential and self-multiplying.
For one, SI-8158 provides an example of such a type, which is a structural
type that refers to itself twice in return types of its methods. At first,
printing such a type would go deeper and deeper, but then it will hit
the depth limit and start multiply indefinitely.
This commit fixes this particular problem by recognizing self-references
as this.type’s and printing them out as such. The subsequent commit will
introduce a more general facility.
Diffstat (limited to 'test/files/neg/t8158.check')
| -rw-r--r-- | test/files/neg/t8158.check | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/test/files/neg/t8158.check b/test/files/neg/t8158.check new file mode 100644 index 0000000000..aaa62ddea4 --- /dev/null +++ b/test/files/neg/t8158.check @@ -0,0 +1,4 @@ +Test_2.scala:10: error: not enough patterns for <$anon: AnyRef> offering AnyRef{def isEmpty: Boolean; def get: this.type; def unapply(x: String): this.type}: expected 1, found 0 + case X() => + ^ +one error found |