Add recursion limit to FFI safety lint#130598
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Fixes stack overflow in the case of recursive types
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It's not totally correct that the type is infinitely recursive; it might just be very large. But whatever, I think having a wrong error message is better than a stack overflow. @bors r+ rollup |
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…iaskrgr Rollup of 6 pull requests Successful merges: - rust-lang#129718 (add guarantee about remove_dir and remove_file error kinds) - rust-lang#130598 (Add recursion limit to FFI safety lint) - rust-lang#130642 (Pass the current cargo to `run-make` tests) - rust-lang#130644 (Only expect valtree consts in codegen) - rust-lang#130645 (Normalize consts in writeback when GCE is enabled) - rust-lang#130646 (compiler: factor out `OVERFLOWING_LITERALS` impl) r? `@ghost` `@rustbot` modify labels: rollup
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Rollup merge of rust-lang#130598 - gurry:130310-improper-types-stack-overflow, r=compiler-errors Add recursion limit to FFI safety lint Fixes rust-lang#130310 Now we check against `tcx.recursion_limit()` and raise an error if it the limit is reached instead of overflowing the stack.
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This was never being decremented.
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…mit, r=jieyouxu Revert "Add recursion limit to FFI safety lint" It's not necessarily clear if warning when we hit the recursion limit is the right thing to do, first of all. **More importantly**, this PR was implemented incorrectly in the first place; it was not decrementing the recursion limit when stepping out of a type, so it would trigger when a ctype has more than RECURSION_LIMIT fields *anywhere* in the type's set of recursively reachable fields. Reverts rust-lang#130598 Reopens rust-lang#130310 Fixes rust-lang#130757
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…mit, r=jieyouxu Revert "Add recursion limit to FFI safety lint" It's not necessarily clear if warning when we hit the recursion limit is the right thing to do, first of all. **More importantly**, this PR was implemented incorrectly in the first place; it was not decrementing the recursion limit when stepping out of a type, so it would trigger when a ctype has more than RECURSION_LIMIT fields *anywhere* in the type's set of recursively reachable fields. Reverts rust-lang#130598 Reopens rust-lang#130310 Fixes rust-lang#130757
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Rollup merge of rust-lang#130758 - compiler-errors:ctype-recursion-limit, r=jieyouxu Revert "Add recursion limit to FFI safety lint" It's not necessarily clear if warning when we hit the recursion limit is the right thing to do, first of all. **More importantly**, this PR was implemented incorrectly in the first place; it was not decrementing the recursion limit when stepping out of a type, so it would trigger when a ctype has more than RECURSION_LIMIT fields *anywhere* in the type's set of recursively reachable fields. Reverts rust-lang#130598 Reopens rust-lang#130310 Fixes rust-lang#130757
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Fixes #130310
Now we check against
tcx.recursion_limit()and raise an error if it the limit is reached instead of overflowing the stack.