Submitted By:            Douglas R. Reno <renodr at linuxfromscratch dot org>
Date:                    2022-03-19
Initial Package Version: 102.9.0esr
Upstream Status:         Applied
Origin:                  rust-bindgen upstream (#2338 and #2319), Self
Description:             Updates the bundled rust-bindgen crate to be compatible
                         with Clang/LLVM 16.

                         Without this patch, you will encounter "not a valid
                         Ident" errors when building Firefox, and it will come
                         out of fallback.rs in proc-macro2. This references
                         mfbt/Vector.h (symlinked to 
                         firefox-build-dir/dist/include/mozilla/Vector.h) in
                         it's error output, but it is because LLVM changed how
                         it reports anonymous items.

diff -Naurp firefox-102.9.0.orig/third_party/rust/bindgen/.cargo-checksum.json firefox-102.9.0/third_party/rust/bindgen/.cargo-checksum.json
--- firefox-102.9.0.orig/third_party/rust/bindgen/.cargo-checksum.json	2023-03-09 17:59:38.000000000 -0600
+++ firefox-102.9.0/third_party/rust/bindgen/.cargo-checksum.json	2023-03-19 21:04:15.981453212 -0500
@@ -1 +1 @@
-{"files":{"Cargo.lock":"836e8f8431bd4ebdac9b1251676f6afa755757e401455259fe659e7280be8230","Cargo.toml":"3a585a6e27a177f08dedcb21f7d555e9db58fa158203273b228db91ebee4e6b3","LICENSE":"c23953d9deb0a3312dbeaf6c128a657f3591acee45067612fa68405eaa4525db","README.md":"29fe30d7a2729922b13a578bc8f5eedc808fd0f2ef67a3f12017548baf8f293a","build.rs":"3fe1e534c99df4ee207606794f133fb187c0948e055389f74c904994ecaed38a","csmith-fuzzing/README.md":"7107b70fedb0c0a0cadb3c439a49c1bd0119a6d38dc63b1aecc74d1942256ef2","src/callbacks.rs":"1e5a118b94977938751758ac0495b1d41ce5e280c066614a4a7cbd930f326350","src/clang.rs":"aa0644278a8319506be08904c0f6706fbcdcd72eb1e85564b8c7488bd810e126","src/codegen/bitfield_unit.rs":"a8fb1a2d97a99685106fcaac87d2013f79d2690d6a46ff05ad1e3629b6075664","src/codegen/bitfield_unit_tests.rs":"dd252134118450800b516e375c872e17b4c1aee63a7b8adbe5b2cd53434bbc7e","src/codegen/dyngen.rs":"15149bc927e5b2706f93e52a6b26ef55384b3baf40bfc9bc4343e9820479f26b","src/codegen/error.rs":"5e308b8c54b68511fc8ea2ad15ddac510172c4ff460a80a265336440b0c9653d","src/codegen/helpers.rs":"ea83104addb8af31736aaeb850e10c694cd434befe7ffaaa206208f722d72c58","src/codegen/impl_debug.rs":"1ff9ec754b610c98c757b114c6509473ead0e1a9375e9089a7fa40a41a753709","src/codegen/impl_partialeq.rs":"5e526fd88dd15dd1f04addd3c6ecea1d3da92293fadf04346d6c716791f436f9","src/codegen/mod.rs":"19fd11feefab0ff9ecaf8a01583583008269adce805508fb61b9a8acc49da586","src/codegen/struct_layout.rs":"b62c3569dcfb011daa4d09f1aa9eb732da69546c3deb9f247fa8ce7114dbc7b9","src/extra_assertions.rs":"494534bd4f18b80d89b180c8a93733e6617edcf7deac413e9a73fd6e7bc9ced7","src/features.rs":"fafb85510b1dfc9a41ed71f7d765fca49b236deb4ee567e00204e751362aaf23","src/ir/analysis/derive.rs":"ff4821d810961696008a57ae496f95ebcdc14b4c439fe87d78a84817442fa759","src/ir/analysis/has_destructor.rs":"d9a3a24bd4cabc87cddb0c76d27da1691f8f37ffb8eadf5b5975a1c44dea99c2","src/ir/analysis/has_float.rs":"5242cc07ec4d4bdf5a792e1f8ee5758a87838314917d42dbb9dcfc19620520ce","src/ir/analysis/has_type_param_in_array.rs":"ec3fb67f782abb4c866da91bce3f7ee6f8e2310c47a54065282431b909233f7d","src/ir/analysis/has_vtable.rs":"63e2d0f62171811893615c11453bc7b39438d0d83c3eb444dec2346140d86efe","src/ir/analysis/mod.rs":"2c54f0cd6f3d86cf3fcb07d9d0be06cde839cab4170671c80d806a3f27820faf","src/ir/analysis/sizedness.rs":"17f1f2b6affd025f73853b9b5a76b3f157b5f9e563e9eaa374735fcb84c13308","src/ir/analysis/template_params.rs":"da949976a7fd04d6fc564ea6a77dfdbf4f5bf05db64687ed7a0616cba598a42d","src/ir/annotations.rs":"1c931d7bbba1e1613e9cccaab58d14f75e79b831b5c881e41f5b5257a9cbced7","src/ir/comment.rs":"31d64a49ae3d9c3c348fa2539e03306ca3a23fae429cab452e42b31ecf632145","src/ir/comp.rs":"abaa90e27dc6416f1b8db003f87888e7651d5b46c4d4526153980e5621612e54","src/ir/context.rs":"3a76458a5aa74075a60a5cd752ed59ad3943054f55b017700389f78072935215","src/ir/derive.rs":"e5581852eec87918901a129284b4965aefc8a19394187a8095779a084f28fabe","src/ir/dot.rs":"e25ff72ac174a798894c9673d81bdfb86fa9f4228b34a14ce0dc741a186a52bd","src/ir/enum_ty.rs":"e49e3c6ffc0289584e2f836fe56a4b7ebf6ca3f8b602248141d67b9f533770cc","src/ir/function.rs":"aa454ace56bda8074b2865933282aa124624310c8bc0c994d454f5799f4e88be","src/ir/int.rs":"68a86182743ec338d58e42203364dc7c8970cb7ec3550433ca92f0c9489b4442","src/ir/item.rs":"a71bdacc7419ec86d52ac534158cf4bfa4600e9cbc214c0075766700f5b053b0","src/ir/item_kind.rs":"7666a1ff1b8260978b790a08b4139ab56b5c65714a5652bbcec7faa7443adc36","src/ir/layout.rs":"755e3787c262de434a53a8c326f0e825f95415ed6b0f925c1cddf208ca8e3bc4","src/ir/mod.rs":"713cd537434567003197a123cbae679602c715e976d22f7b23dafd0826ea4c70","src/ir/module.rs":"70cf6ddfeabe6cdc13fdc767c783216c073404848d827e85fc6c2de3a19b5c3f","src/ir/objc.rs":"195fb2a3e4371b90244f3a8f295fd80cc77e0f2daf8fd27e3d8e5b78bd6b55d6","src/ir/template.rs":"44bd7214cf1e7f70e60694115082aac5b8a6c1687fff584cd08cdcfadabc5734","src/ir/traversal.rs":"5ac088277f4dfe2918d81b9294aaee41fd83db8e46def66a05f89de078bf4c49","src/ir/ty.rs":"8f2b970da76850685c4d334289af6dede7742862d7a81f2236115afaa1a92fa9","src/ir/var.rs":"86e9f19403fb9231ba60dec0a04e5b56fe28a37c7a5e6f676c978789c9d93c5a","src/lib.rs":"ed2d0aeb48b28b4a96b8e76a10e00b10cb6cc32c0a686d536f9021463b7ee0e8","src/log_stubs.rs":"6dfdd908b7c6453da416cf232893768f9480e551ca4add0858ef88bf71ee6ceb","src/main.rs":"74e582c37b146090332b1496f5b4bca02c7629d03a4ae40302cb4a723f08e445","src/options.rs":"119358b741601dafc13560856f6e4b4f78b6cd2b19067893c2672ba8f5dc6de1","src/parse.rs":"4ffc54415eadb622ee488603862788c78361ef2c889de25259441a340c2a010f","src/regex_set.rs":"6c46357fb1ee68250e5e017cbf691f340041489ae78599eee7a5665a6ddce27f","src/time.rs":"8efe317e7c6b5ba8e0865ce7b49ca775ee8a02590f4241ef62f647fa3c22b68e"},"package":"2da379dbebc0b76ef63ca68d8fc6e71c0f13e59432e0987e508c1820e6ab5239"}
\ No newline at end of file
+{"files":{"Cargo.lock":"836e8f8431bd4ebdac9b1251676f6afa755757e401455259fe659e7280be8230","Cargo.toml":"3a585a6e27a177f08dedcb21f7d555e9db58fa158203273b228db91ebee4e6b3","LICENSE":"c23953d9deb0a3312dbeaf6c128a657f3591acee45067612fa68405eaa4525db","README.md":"29fe30d7a2729922b13a578bc8f5eedc808fd0f2ef67a3f12017548baf8f293a","build.rs":"3fe1e534c99df4ee207606794f133fb187c0948e055389f74c904994ecaed38a","csmith-fuzzing/README.md":"7107b70fedb0c0a0cadb3c439a49c1bd0119a6d38dc63b1aecc74d1942256ef2","src/callbacks.rs":"1e5a118b94977938751758ac0495b1d41ce5e280c066614a4a7cbd930f326350","src/clang.rs":"30fdc473ff70dcbc394927d6fb674d70a62c1a3847e855becd988dc476997815","src/codegen/bitfield_unit.rs":"a8fb1a2d97a99685106fcaac87d2013f79d2690d6a46ff05ad1e3629b6075664","src/codegen/bitfield_unit_tests.rs":"dd252134118450800b516e375c872e17b4c1aee63a7b8adbe5b2cd53434bbc7e","src/codegen/dyngen.rs":"15149bc927e5b2706f93e52a6b26ef55384b3baf40bfc9bc4343e9820479f26b","src/codegen/error.rs":"5e308b8c54b68511fc8ea2ad15ddac510172c4ff460a80a265336440b0c9653d","src/codegen/helpers.rs":"ea83104addb8af31736aaeb850e10c694cd434befe7ffaaa206208f722d72c58","src/codegen/impl_debug.rs":"1ff9ec754b610c98c757b114c6509473ead0e1a9375e9089a7fa40a41a753709","src/codegen/impl_partialeq.rs":"5e526fd88dd15dd1f04addd3c6ecea1d3da92293fadf04346d6c716791f436f9","src/codegen/mod.rs":"19fd11feefab0ff9ecaf8a01583583008269adce805508fb61b9a8acc49da586","src/codegen/struct_layout.rs":"b62c3569dcfb011daa4d09f1aa9eb732da69546c3deb9f247fa8ce7114dbc7b9","src/extra_assertions.rs":"494534bd4f18b80d89b180c8a93733e6617edcf7deac413e9a73fd6e7bc9ced7","src/features.rs":"fafb85510b1dfc9a41ed71f7d765fca49b236deb4ee567e00204e751362aaf23","src/ir/analysis/derive.rs":"ff4821d810961696008a57ae496f95ebcdc14b4c439fe87d78a84817442fa759","src/ir/analysis/has_destructor.rs":"d9a3a24bd4cabc87cddb0c76d27da1691f8f37ffb8eadf5b5975a1c44dea99c2","src/ir/analysis/has_float.rs":"5242cc07ec4d4bdf5a792e1f8ee5758a87838314917d42dbb9dcfc19620520ce","src/ir/analysis/has_type_param_in_array.rs":"ec3fb67f782abb4c866da91bce3f7ee6f8e2310c47a54065282431b909233f7d","src/ir/analysis/has_vtable.rs":"63e2d0f62171811893615c11453bc7b39438d0d83c3eb444dec2346140d86efe","src/ir/analysis/mod.rs":"2c54f0cd6f3d86cf3fcb07d9d0be06cde839cab4170671c80d806a3f27820faf","src/ir/analysis/sizedness.rs":"17f1f2b6affd025f73853b9b5a76b3f157b5f9e563e9eaa374735fcb84c13308","src/ir/analysis/template_params.rs":"da949976a7fd04d6fc564ea6a77dfdbf4f5bf05db64687ed7a0616cba598a42d","src/ir/annotations.rs":"1c931d7bbba1e1613e9cccaab58d14f75e79b831b5c881e41f5b5257a9cbced7","src/ir/comment.rs":"31d64a49ae3d9c3c348fa2539e03306ca3a23fae429cab452e42b31ecf632145","src/ir/comp.rs":"232300be66abbbc3d7ef948c24f000dd8a50d78e72aa0e4b2cc43ffd4f800226","src/ir/context.rs":"3a76458a5aa74075a60a5cd752ed59ad3943054f55b017700389f78072935215","src/ir/derive.rs":"e5581852eec87918901a129284b4965aefc8a19394187a8095779a084f28fabe","src/ir/dot.rs":"e25ff72ac174a798894c9673d81bdfb86fa9f4228b34a14ce0dc741a186a52bd","src/ir/enum_ty.rs":"e49e3c6ffc0289584e2f836fe56a4b7ebf6ca3f8b602248141d67b9f533770cc","src/ir/function.rs":"aa454ace56bda8074b2865933282aa124624310c8bc0c994d454f5799f4e88be","src/ir/int.rs":"68a86182743ec338d58e42203364dc7c8970cb7ec3550433ca92f0c9489b4442","src/ir/item.rs":"a71bdacc7419ec86d52ac534158cf4bfa4600e9cbc214c0075766700f5b053b0","src/ir/item_kind.rs":"7666a1ff1b8260978b790a08b4139ab56b5c65714a5652bbcec7faa7443adc36","src/ir/layout.rs":"755e3787c262de434a53a8c326f0e825f95415ed6b0f925c1cddf208ca8e3bc4","src/ir/mod.rs":"713cd537434567003197a123cbae679602c715e976d22f7b23dafd0826ea4c70","src/ir/module.rs":"70cf6ddfeabe6cdc13fdc767c783216c073404848d827e85fc6c2de3a19b5c3f","src/ir/objc.rs":"195fb2a3e4371b90244f3a8f295fd80cc77e0f2daf8fd27e3d8e5b78bd6b55d6","src/ir/template.rs":"44bd7214cf1e7f70e60694115082aac5b8a6c1687fff584cd08cdcfadabc5734","src/ir/traversal.rs":"5ac088277f4dfe2918d81b9294aaee41fd83db8e46def66a05f89de078bf4c49","src/ir/ty.rs":"8d7e7883316245c54e5dfa2fd150df1be2dc559c7df0828da736dd6b18d2165b","src/ir/var.rs":"1e7be8eedba72effa995b48c581504e61e407867d8794a8528975688742b0420","src/lib.rs":"ed2d0aeb48b28b4a96b8e76a10e00b10cb6cc32c0a686d536f9021463b7ee0e8","src/log_stubs.rs":"6dfdd908b7c6453da416cf232893768f9480e551ca4add0858ef88bf71ee6ceb","src/main.rs":"74e582c37b146090332b1496f5b4bca02c7629d03a4ae40302cb4a723f08e445","src/options.rs":"119358b741601dafc13560856f6e4b4f78b6cd2b19067893c2672ba8f5dc6de1","src/parse.rs":"4ffc54415eadb622ee488603862788c78361ef2c889de25259441a340c2a010f","src/regex_set.rs":"6c46357fb1ee68250e5e017cbf691f340041489ae78599eee7a5665a6ddce27f","src/time.rs":"8efe317e7c6b5ba8e0865ce7b49ca775ee8a02590f4241ef62f647fa3c22b68e"},"package":"2da379dbebc0b76ef63ca68d8fc6e71c0f13e59432e0987e508c1820e6ab5239"}
diff -Naurp firefox-102.9.0.orig/third_party/rust/bindgen/src/clang.rs firefox-102.9.0/third_party/rust/bindgen/src/clang.rs
--- firefox-102.9.0.orig/third_party/rust/bindgen/src/clang.rs	2023-03-09 17:59:38.000000000 -0600
+++ firefox-102.9.0/third_party/rust/bindgen/src/clang.rs	2023-03-19 20:26:47.405305678 -0500
@@ -54,6 +54,11 @@ impl Cursor {
         unsafe { clang_isDeclaration(self.kind()) != 0 }
     }
 
+    /// Is this cursor's referent an anonymous record or so?
+    pub fn is_anonymous(&self) -> bool {
+        unsafe { clang_Cursor_isAnonymous(self.x) != 0 }
+    }
+
     /// Get this cursor's referent's spelling.
     pub fn spelling(&self) -> String {
         unsafe { cxstring_into_string(clang_getCursorSpelling(self.x)) }
diff -Naurp firefox-102.9.0.orig/third_party/rust/bindgen/src/ir/comp.rs firefox-102.9.0/third_party/rust/bindgen/src/ir/comp.rs
--- firefox-102.9.0.orig/third_party/rust/bindgen/src/ir/comp.rs	2023-03-09 17:59:38.000000000 -0600
+++ firefox-102.9.0/third_party/rust/bindgen/src/ir/comp.rs	2023-03-19 20:27:20.660487032 -0500
@@ -1372,8 +1372,7 @@ impl CompInfo {
 
                     // A declaration of an union or a struct without name could
                     // also be an unnamed field, unfortunately.
-                    if cur.spelling().is_empty() &&
-                        cur.kind() != CXCursor_EnumDecl
+                    if cur.is_anonymous() && cur.kind() != CXCursor_EnumDecl
                     {
                         let ty = cur.cur_type();
                         let offset = cur.offset_of_field().ok();
diff -Naurp firefox-102.9.0.orig/third_party/rust/bindgen/src/ir/ty.rs firefox-102.9.0/third_party/rust/bindgen/src/ir/ty.rs
--- firefox-102.9.0.orig/third_party/rust/bindgen/src/ir/ty.rs	2023-03-09 17:59:38.000000000 -0600
+++ firefox-102.9.0/third_party/rust/bindgen/src/ir/ty.rs	2023-03-19 21:02:47.947103359 -0500
@@ -737,7 +737,12 @@ impl Type {
 
         let layout = ty.fallible_layout(ctx).ok();
         let cursor = ty.declaration();
-        let mut name = cursor.spelling();
+        let is_anonymous = cursor.is_anonymous();
+        let mut name = if is_anonymous {
+            None
+        } else {
+            Some(cursor.spelling()).filter(|n| !n.is_empty())
+        };
 
         debug!(
             "from_clang_ty: {:?}, ty: {:?}, loc: {:?}",
@@ -771,7 +776,7 @@ impl Type {
             if is_canonical_objcpointer && is_template_type_param {
                 // Objective-C generics are just ids with fancy name.
                 // To keep it simple, just name them ids
-                name = "id".to_owned();
+                name = Some("id".to_owned());
             }
         }
 
@@ -900,7 +905,7 @@ impl Type {
                                         return Err(ParseError::Recurse);
                                     }
                                 } else {
-                                    name = location.spelling();
+                                    name = Some(location.spelling());
                                 }
 
                                 let complex = CompInfo::from_ty(
@@ -942,7 +947,7 @@ impl Type {
                                                 CXType_Typedef
                                             );
 
-                                            name = current.spelling();
+                                            name = Some(location.spelling());
 
                                             let inner_ty = cur
                                                 .typedef_type()
@@ -1126,10 +1131,10 @@ impl Type {
                 CXType_Enum => {
                     let enum_ = Enum::from_ty(ty, ctx).expect("Not an enum?");
 
-                    if name.is_empty() {
+                    if !is_anonymous {
                         let pretty_name = ty.spelling();
                         if clang::is_valid_identifier(&pretty_name) {
-                            name = pretty_name;
+                            name = Some(pretty_name);
                         }
                     }
 
@@ -1144,12 +1149,12 @@ impl Type {
                     )
                     .expect("Not a complex type?");
 
-                    if name.is_empty() {
+                    if !is_anonymous {
                         // The pretty-printed name may contain typedefed name,
                         // but may also be "struct (anonymous at .h:1)"
                         let pretty_name = ty.spelling();
                         if clang::is_valid_identifier(&pretty_name) {
-                            name = pretty_name;
+                            name = Some(pretty_name);
                         }
                     }
 
@@ -1161,8 +1166,7 @@ impl Type {
                         location,
                         None,
                         ctx,
-                    )
-                    .expect("Not able to resolve vector element?");
+                    )?;
                     TypeKind::Vector(inner, ty.num_elements().unwrap())
                 }
                 CXType_ConstantArray => {
@@ -1189,7 +1193,9 @@ impl Type {
                 CXType_ObjCClass | CXType_ObjCInterface => {
                     let interface = ObjCInterface::from_ty(&location, ctx)
                         .expect("Not a valid objc interface?");
-                    name = interface.rust_name();
+                    if !is_anonymous {
+                        name = Some(interface.rust_name());
+                    }
                     TypeKind::ObjCInterface(interface)
                 }
                 CXType_Dependent => {
@@ -1207,7 +1213,7 @@ impl Type {
             }
         };
 
-        let name = if name.is_empty() { None } else { Some(name) };
+        name = name.filter(|n| !n.is_empty());
 
         let is_const = ty.is_const() ||
             (ty.kind() == CXType_ConstantArray &&
diff -Naurp firefox-102.9.0.orig/third_party/rust/bindgen/src/ir/var.rs firefox-102.9.0/third_party/rust/bindgen/src/ir/var.rs
--- firefox-102.9.0.orig/third_party/rust/bindgen/src/ir/var.rs	2023-03-09 17:59:38.000000000 -0600
+++ firefox-102.9.0/third_party/rust/bindgen/src/ir/var.rs	2023-03-19 21:03:37.413299390 -0500
@@ -301,11 +301,11 @@ impl ClangSubItemParser for Var {
                 let ty = match Item::from_ty(&ty, cursor, None, ctx) {
                     Ok(ty) => ty,
                     Err(e) => {
-                        assert_eq!(
-                            ty.kind(),
-                            CXType_Auto,
+                        assert!(
+                            matches!(ty.kind(), CXType_Auto | CXType_Unexposed),
                             "Couldn't resolve constant type, and it \
-                             wasn't an nondeductible auto type!"
+                             wasn't an nondeductible auto type or unexposed \
+                             type!"
                         );
                         return Err(e);
                     }
