Fix handling of anonymous names in Clang 16.#2316
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pcwalton wants to merge 1 commit intorust-lang:masterfrom
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Fix handling of anonymous names in Clang 16.#2316pcwalton wants to merge 1 commit intorust-lang:masterfrom
pcwalton wants to merge 1 commit intorust-lang:masterfrom
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In trunk, Clang started emitting names like `"(unnamed enum at foo.cpp:4:2)"` for unnamed enums, structs, and unions, while previous versions emitted the empty string. This caused panics. This commit simply rewrites such names back to the empty string so that we stay compatible with both old and new versions of Clang. Closes rust-lang#2312.
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With this PR, 3 tests still fail with Clang 16, but they look unrelated. In fact, for those 3 failing tests, Clang 16's output looks superior to the existing Clang. |
emilio
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…y names. In Clang 16, anonymous items may return names like `(anonymous union at ..)` rather than empty names. The right way to detect them is using clang_Cursor_isAnonymous. Fixes rust-lang#2312 Closes rust-lang#2316 Co-Authored-by: Patrick Walton <pcwalton@fb.com>
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Oct 22, 2022
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Thanks! While this does fix the issue, I'd much rather check clang_Cursor_isAnonymous than relying on the spelling.
I had a WIP in the issue, and you found the place that I had missed, so #2319 contains that and I confirmed I get the same results as with this fix.
If you're ok with that (and assuming that's green on CI), I'd rather use that approach, which seems slightly more robust.
Thanks!
| // A declaration of an union or a struct without name | ||
| // could also be an unnamed field, unfortunately. | ||
| if cur.spelling().is_empty() && | ||
| let mut spelling = cur.spelling(); |
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This is the bit I had missed in #2312 (comment), thanks for catching it :)
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…y names. In Clang 16, anonymous items may return names like `(anonymous union at ..)` rather than empty names. The right way to detect them is using clang_Cursor_isAnonymous. Fixes rust-lang#2312 Closes rust-lang#2316 Co-Authored-by: Patrick Walton <pcwalton@fb.com>
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Oct 25, 2022
…y names. In Clang 16, anonymous items may return names like `(anonymous union at ..)` rather than empty names. The right way to detect them is using clang_Cursor_isAnonymous. Fixes rust-lang#2312 Closes rust-lang#2316 Co-Authored-by: Patrick Walton <pcwalton@fb.com>
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…y names. In Clang 16, anonymous items may return names like `(anonymous union at ..)` rather than empty names. The right way to detect them is using clang_Cursor_isAnonymous. Fixes rust-lang#2312 Closes rust-lang#2316 Co-Authored-by: Patrick Walton <pcwalton@fb.com>
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This patch upgrades the `bindgen` dependency to version 0.64 which includes a fix for an upstream issue broken builds when building w/ clang 16 or newer [0]. The use of a wildcard `*` was removed in bindgen 0.62 [1], code has been updated to use the regex approach instead to continue working. [0]: rust-lang/rust-bindgen#2316 [1]: rust-lang/rust-bindgen#2373
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This patch upgrades the `bindgen` dependency to version 0.64 which includes a fix for an upstream issue broken builds when building w/ clang 16 or newer [0]. The use of a wildcard `*` was removed in bindgen 0.62 [1], code has been updated to use the regex approach instead to continue working. [0]: rust-lang/rust-bindgen#2316 [1]: rust-lang/rust-bindgen#2373
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…y names. In Clang 16, anonymous items may return names like `(anonymous union at ..)` rather than empty names. The right way to detect them is using clang_Cursor_isAnonymous. Fixes rust-lang#2312 Closes rust-lang#2316 Co-Authored-by: Patrick Walton <pcwalton@fb.com>
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The build was encountering an issue in rust-bindgen, that has been fixed[1], but nettle-sys depends on an old version of rust-bindgen, Updated nettle-sys, patched Cargo.lock [1]- rust-lang/rust-bindgen#2316 https://bugs.launchpad.net/ubuntu/+source/rust-bindgen/+bug/2030886
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…y names. In Clang 16, anonymous items may return names like `(anonymous union at ..)` rather than empty names. The right way to detect them is using clang_Cursor_isAnonymous. Fixes rust-lang#2312 Closes rust-lang#2316 Co-Authored-by: Patrick Walton <pcwalton@fb.com>
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In trunk, Clang started emitting names like
"(unnamed enum at foo.cpp:4:2)"for unnamed enums, structs, and unions, while previous versions emitted the empty string. This caused panics.This commit simply rewrites such names back to the empty string so that we stay compatible with both old and new versions of Clang.
Closes #2312.
r? @emilio