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[bindings] Expose a _clone fn for every struct that derive(Clone)s

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Matt Corallo 2020-10-11 23:51:22 -04:00
parent faa8ec5c21
commit 29b209ceea
1 changed files with 4 additions and 0 deletions
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4
c-bindings-gen/src/main.rs
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@ -450,6 +450,10 @@ fn writeln_opaque<W: std::io::Write>(w: &mut W, ident: &syn::Ident, struct_name:
writeln!(w, "pub(crate) extern \"C\" fn {}_clone_void(this_ptr: *const c_void) -> *mut c_void {{", struct_name).unwrap();
writeln!(w, "\tBox::into_raw(Box::new(unsafe {{ (*(this_ptr as *mut native{})).clone() }})) as *mut c_void", struct_name).unwrap();
writeln!(w, "}}").unwrap();
writeln!(w, "#[no_mangle]").unwrap();
writeln!(w, "pub extern \"C\" fn {}_clone(orig: &{}) -> {} {{", struct_name, struct_name, struct_name).unwrap();
writeln!(w, "\t{} {{ inner: Box::into_raw(Box::new(unsafe {{ &*orig.inner }}.clone())), is_owned: true }}", struct_name).unwrap();
writeln!(w, "}}").unwrap();
break 'attr_loop;
}
}