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print deprecation warning for bitshift Int by a Long
See original GitHub issueThe current situation is pretty bad:
2.11/Dotty:
scala> 1 << 33L
res0: Long = 8589934592
scala> val x = 1
x: Int = 1
scala> x << 33L
res1: Int = 0
2.12 (since https://github.com/scala/scala/pull/4238):
scala> 1 << 33L
res0: Int = 2
scala> val x = 1
x: Int = 1
scala> x << 33L
res1: Int = 2
See also the discussion at https://gitter.im/scala/contributors?at=598b4b3eee5c9a4c5fa61568 where @ichoran proposed getting rid of Int#<<(x: Long) since it can be so easily misused.
Issue Analytics
- State:
- Created 6 years ago
- Comments:8 (3 by maintainers)
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One should write one’s contracts especially carefully when dealing with those who are shifty: spell things out.
so it seems to be that the issue here is not printing the deprecation warning for
<<(that: Long)