Squashed 'third_party/autocxx/' changes from 629e8fa53..c35090b75

c35090b75 Merge pull request #1131 from google/rev-0.22.3
94f20d716 Revise to 0.22.3.
b4776fdd5 Merge pull request #1070 from google/reference-wrapper
25f08f567 Better encapsulate TypeConversionPolicy. No functional changes.
b389afdeb Add reference wrapper safety policy.
cd169853b Merge pull request #1126 from google/issue-1125
92f48fa30 Merge pull request #1123 from google/segfault-detection
ca60bacca Add comment
724a4971d Add test for issue 1125.
d8a9a8ca7 Detect segfaults in reduction
e147efc7c Merge pull request #1122 from google/rev-0.22.2
dfa9b99a4 Revise to 0.22.2.
4cb1da848 Merge pull request #1120 from chbaker0/main
79afb97d9 Replace lingering tempdir usages with tempfile
f945331a3 Merge pull request #1118 from google/fix-test-fixed-num
5a8b28751 Merge pull request #1117 from google/docs-tweaks
b5486faa1 Merge pull request #1109 from bsilver8192/bindgen-skip-rustfmt
f62c17273 Fix faulty test_fixed_num test.
ad954fa72 Minor doc updates.
eaa1f8737 Leave bindgen enabled when logging is
bdff5db56 Merge pull request #1110 from bsilver8192/subclass-std
922f98be4 Merge pull request #1111 from bsilver8192/subclass-unsafe
bfbcc6b94 Merge pull request #1114 from google/rev-0.22.1
4f68a2e59 Merge pull request #1112 from bsilver8192/subclass-upcast-uniqueptr
993c5705b Revise to 0.22.1.
7bf667bbf Add a function to upcast UniquePtr
733d751a2 Fix clippy and docs
8023cee43 Fix and test subclass without `safety!(unsafe)`
4ae4d47e4 Fix and test subclasses with C++ std in scope
c50b1ee7e Tell bindgen to skip rustfmt
f9b24b90e Merge pull request #1107 from google/reject-anon-namespace-typedefs
070c9755d Merge pull request #1093 from google/always-output-rs
8eb71c5e7 Merge pull request #1095 from google/issue-1094
c86f1ce7e Reject forward declared nested types.
c118dba64 Merge branch 'main' into reject-anon-namespace-typedefs
243079997 Merge pull request #1108 from google/reject-type-param-typedefs
f803c3ba5 Reject type params - fixes #1098
f3381ba52 Reject typedefs to anon namespaces.
669d932a7 Merge pull request #1106 from google/lotsa-failing-tests
f0e8487fe Marking tests as ignored.
524c2bbfc Add tests for multiple issues.
67e16ac2a Merge branch 'main' of github.com:google/autocxx into always-output-rs
5f62daf3f Merge pull request #1104 from google/roll-cxx
43ee55ca2 Further upgrade from 1.0.67 to 1.0.68
e29e3c899 Merge pull request #1100 from bsilver8192/extern_cpp_type-namespace
d2c8edef4 Merge pull request #1101 from google/fix-1081
094dbd957 Roll cxx minimal version.
94c39f35b Merge pull request #1102 from google/fix-book-build
8764f1218 Alter mdbook-mermaid installation.
85543656f Test for issue 1081
b170df056 Fix and test extern_cpp_type with type in a C++ namespace
e4b56dd49 Fix gen tests.
5457e615d Fix #1092.

git-subtree-dir: third_party/autocxx
git-subtree-split: c35090b754619531b4eebdf4d8b583db72349943
Signed-off-by: Brian Silverman <bsilver16384@gmail.com>
Change-Id: Ia34285bc1c30f7e3c71fa9e7b677a58902648843
diff --git a/engine/src/conversion/parse/bindgen_semantic_attributes.rs b/engine/src/conversion/parse/bindgen_semantic_attributes.rs
index 8b789ae..a8de9ce 100644
--- a/engine/src/conversion/parse/bindgen_semantic_attributes.rs
+++ b/engine/src/conversion/parse/bindgen_semantic_attributes.rs
@@ -61,6 +61,11 @@
                 ConvertError::UnusedTemplateParam,
                 Some(ErrorContext::new_for_item(id_for_context.clone())),
             ))
+        } else if self.get_cpp_visibility() != CppVisibility::Public {
+            Err(ConvertErrorWithContext(
+                ConvertError::NonPublicNestedType,
+                Some(ErrorContext::new_for_item(id_for_context.clone())),
+            ))
         } else {
             Ok(())
         }
diff --git a/engine/src/conversion/parse/parse_bindgen.rs b/engine/src/conversion/parse/parse_bindgen.rs
index 0818aa5..2d4e3de 100644
--- a/engine/src/conversion/parse/parse_bindgen.rs
+++ b/engine/src/conversion/parse/parse_bindgen.rs
@@ -207,7 +207,7 @@
                 // cxx::bridge can't cope with type aliases to generic
                 // types at the moment.
                 let name = api_name_qualified(ns, s.ident.clone(), &annotations)?;
-                let err = annotations.check_for_fatal_attrs(&s.ident).err();
+                let mut err = annotations.check_for_fatal_attrs(&s.ident).err();
                 let api = if ns.is_empty() && self.config.is_rust_type(&s.ident) {
                     None
                 } else if Self::spot_forward_declaration(&s.fields)
@@ -219,6 +219,15 @@
                     // we spot in the previous clause) but instead with an _address field.
                     // So, solely in the case where we're storing up an error about such
                     // a templated type, we'll also treat such cases as forward declarations.
+                    //
+                    // We'll also at this point check for one specific problem with
+                    // forward declarations.
+                    if err.is_none() && name.cpp_name().contains("::") {
+                        err = Some(ConvertErrorWithContext(
+                            ConvertError::ForwardDeclaredNestedType,
+                            Some(ErrorContext::new_for_item(s.ident)),
+                        ));
+                    }
                     Some(UnanalyzedApi::ForwardDeclaration { name, err })
                 } else {
                     let has_rvalue_reference_fields = s.fields.iter().any(|f| {
@@ -227,7 +236,6 @@
                     Some(UnanalyzedApi::Struct {
                         name,
                         details: Box::new(StructDetails {
-                            vis: annotations.get_cpp_visibility(),
                             layout: annotations.get_layout(),
                             item: s,
                             has_rvalue_reference_fields,