e7261f3ab6
This PR implements the majority of RFC 1214. In particular, it implements: - the new outlives relation - comprehensive WF checking For the most part, new code receives warnings, not errors, though 3 regressions were found via a crater run. There are some deviations from RFC 1214. Most notably: - we still consider implied bounds from fn ret; this intersects other soundness issues that I intend to address in detail in a follow-up RFC. Fixing this without breaking a lot of code probably requires rewriting compare-method somewhat (which is probably a good thing). - object types do not check trait bounds for fear of encountering `Self`; this was left as an unresolved question in RFC 1214, but ultimately feels inconsistent. Both of those two issues are highlighted in the tracking issue, https://github.com/rust-lang/rust/issues/27579. #27579 also includes a testing matrix with new tests that I wrote -- these probably duplicate some existing tests, I tried to check but wasn't quite sure what to look for. I tried to be thorough in testing the WF relation, at least, but would welcome suggestions for missing tests. r? @nrc (or perhaps someone else?) |
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| .. | ||
| compiler-rt@58ab642c30 | ||
| compiletest | ||
| doc | ||
| driver | ||
| error-index-generator | ||
| etc | ||
| grammar | ||
| jemalloc@e24a1a025a | ||
| liballoc | ||
| libarena | ||
| libbacktrace | ||
| libcollections | ||
| libcollectionstest | ||
| libcore | ||
| libcoretest | ||
| libflate | ||
| libfmt_macros | ||
| libgetopts | ||
| libgraphviz | ||
| liblibc | ||
| liblog | ||
| librand | ||
| librbml | ||
| librustc | ||
| librustc_back | ||
| librustc_bitflags | ||
| librustc_borrowck | ||
| librustc_data_structures | ||
| librustc_driver | ||
| librustc_lint | ||
| librustc_llvm | ||
| librustc_privacy | ||
| librustc_resolve | ||
| librustc_trans | ||
| librustc_typeck | ||
| librustc_unicode | ||
| librustdoc | ||
| libserialize | ||
| libstd | ||
| libsyntax | ||
| libterm | ||
| libtest | ||
| llvm@874dc4ee4c | ||
| rt | ||
| rust-installer@c37d3747da | ||
| rustbook | ||
| rustllvm | ||
| test | ||
| snapshots.txt | ||