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Emit private layout struct for all opaque types

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This commit is contained in:
David Tolnay 2020-12-26 22:23:50 -08:00
parent 0c9c3e6e33
commit 6ba262f630
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GPG Key ID: F9BA143B95FF6D82
1 changed files with 13 additions and 3 deletions
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16
gen/src/write.rs
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@ -311,22 +311,32 @@ fn write_opaque_type<'a>(out: &mut OutFile<'a>, ety: &'a ExternType, methods: &[
for line in ety.doc.to_string().lines() {
writeln!(out, "//{}", line);
}
out.builtin.opaque = true;
write!(
writeln!(
out,
"struct {} final : public ::rust::Opaque {{",
ety.name.cxx,
);
for method in methods {
write!(out, "\n ");
write!(out, " ");
let sig = &method.sig;
let local_name = method.name.cxx.to_string();
write_rust_function_shim_decl(out, &local_name, sig, false);
write!(out, ";");
writeln!(out, ";");
}
if !methods.is_empty() {
writeln!(out);
}
out.include.cstddef = true;
writeln!(out, "private:");
writeln!(out, " struct layout {{");
writeln!(out, " static ::std::size_t size() noexcept;");
writeln!(out, " static ::std::size_t align() noexcept;");
writeln!(out, " }};");
writeln!(out, "}};");
writeln!(out, "#endif // {}", guard);
}