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Compiler stack overflow caused by specific generics syntax #22375
Description
I tried pulling the old Java enum generics cleverness on rustc, and depending on the syntax used it either works as expected or plainly crashes.
This works just fine:
trait A<T> where T: A<T> {}However this really upsets the compiler:
trait A<T: A<T>> {}$ RUST_BACKTRACE=1 rustc src/lib.rs --crate-type lib
thread 'rustc' has overflowed its stack
Illegal instruction
$ rustc --version --verbose
rustc 1.0.0-nightly (b63cee4a1 2015-02-14 17:01:11 +0000)
binary: rustc
commit-hash: b63cee4a11fcfecf20ed8419bc3bd6859e6496bc
commit-date: 2015-02-14 17:01:11 +0000
host: x86_64-unknown-linux-gnu
release: 1.0.0-nightly
$ uname -a
Linux rust-m2 3.13.0-45-generic #74+7.0trisquel2 SMP Sat Jan 31 14:07:55 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Activity
steveklabnik commentedon Feb 15, 2015
Is this a dup of #12644 ?
nham commentedon Jun 24, 2015
The code currently compiles, so I believe this issue can be closed.
frewsxcv commentedon Jun 24, 2015
I'll add a regression test
Add regression test for rust-lang#22375
Auto merge of #26536 - frewsxcv:regression-test-22375, r=alexcrichton