Export,
NoExport,
TestOnly,
+ /// This is used only for traits to indicate that users should not be able to implement their
+ /// own version of a trait, but we should export Rust implementations of the trait (and the
+ /// trait itself).
+ /// Concretly, this means that we do not implement the Rust trait for the C trait struct.
+ NotImplementable,
}
/// Gets the ExportStatus of an object (struct, fn, etc) given its attributes.
pub fn export_status(attrs: &[syn::Attribute]) -> ExportStatus {
let line = format!("{}", lit);
if line.contains("(C-not exported)") {
return ExportStatus::NoExport;
+ } else if line.contains("(C-not implementable)") {
+ return ExportStatus::NotImplementable;
}
},
_ => unimplemented!(),
for field in fields.named.iter() {
match export_status(&field.attrs) {
ExportStatus::Export|ExportStatus::TestOnly => {},
+ ExportStatus::NotImplementable => panic!("(C-not implementable) should only appear on traits!"),
ExportStatus::NoExport => return true,
}
}
for field in fields.unnamed.iter() {
match export_status(&field.attrs) {
ExportStatus::Export|ExportStatus::TestOnly => {},
+ ExportStatus::NotImplementable => panic!("(C-not implementable) should only appear on traits!"),
ExportStatus::NoExport => return true,
}
}
self_ty: Option<(String, &'a syn::Path)>,
parent: Option<&'b GenericTypes<'b, 'b>>,
typed_generics: HashMap<&'a syn::Ident, (String, Option<&'a syn::Path>)>,
- default_generics: HashMap<&'a syn::Ident, (&'a syn::Type, syn::Type)>,
+ default_generics: HashMap<&'a syn::Ident, (syn::Type, syn::Type)>,
}
impl<'a, 'p: 'a> GenericTypes<'a, 'p> {
pub fn new(self_ty: Option<(String, &'a syn::Path)>) -> Self {
match generic {
syn::GenericParam::Type(type_param) => {
let mut non_lifetimes_processed = false;
- for bound in type_param.bounds.iter() {
+ 'bound_loop: for bound in type_param.bounds.iter() {
if let syn::TypeParamBound::Trait(trait_bound) = bound {
if let Some(ident) = single_ident_generic_path_to_ident(&trait_bound.path) {
match &format!("{}", ident) as &str { "Send" => continue, "Sync" => continue, _ => {} }
if path == "Sized" { continue; }
if non_lifetimes_processed { return false; }
non_lifetimes_processed = true;
- let new_ident = if path != "std::ops::Deref" {
+ let new_ident = if path != "std::ops::Deref" && path != "core::ops::Deref" {
path = "crate::".to_string() + &path;
Some(&trait_bound.path)
+ } else if trait_bound.path.segments.len() == 1 {
+ // If we're templated on Deref<Target = ConcreteThing>, store
+ // the reference type in `default_generics` which handles full
+ // types and not just paths.
+ if let syn::PathArguments::AngleBracketed(ref args) =
+ trait_bound.path.segments[0].arguments {
+ for subargument in args.args.iter() {
+ match subargument {
+ syn::GenericArgument::Lifetime(_) => {},
+ syn::GenericArgument::Binding(ref b) => {
+ if &format!("{}", b.ident) != "Target" { return false; }
+ let default = &b.ty;
+ self.default_generics.insert(&type_param.ident, (parse_quote!(&#default), parse_quote!(&#default)));
+ break 'bound_loop;
+ },
+ _ => unimplemented!(),
+ }
+ }
+ None
+ } else { None }
} else { None };
self.typed_generics.insert(&type_param.ident, (path, new_ident));
} else { return false; }
}
if let Some(default) = type_param.default.as_ref() {
assert!(type_param.bounds.is_empty());
- self.default_generics.insert(&type_param.ident, (default, parse_quote!(&#default)));
+ self.default_generics.insert(&type_param.ident, (default.clone(), parse_quote!(&#default)));
}
},
_ => {},
if p.path.leading_colon.is_some() { return false; }
let mut p_iter = p.path.segments.iter();
if let Some(gen) = self.typed_generics.get_mut(&p_iter.next().unwrap().ident) {
- if gen.0 != "std::ops::Deref" { return false; }
+ if gen.0 != "std::ops::Deref" && gen.0 != "core::ops::Deref" { return false; }
if &format!("{}", p_iter.next().unwrap().ident) != "Target" { return false; }
let mut non_lifetimes_processed = false;
// implement Deref<Target=Self> for relevant types). We don't
// bother to implement it for associated types, however, so we just
// ignore such bounds.
- let new_ident = if path != "std::ops::Deref" {
+ let new_ident = if path != "std::ops::Deref" && path != "core::ops::Deref" {
path = "crate::".to_string() + &path;
Some(&tr.path)
} else { None };
ExportStatus::Export => { declared.insert(s.ident.clone(), DeclType::StructImported); },
ExportStatus::NoExport => { declared.insert(s.ident.clone(), DeclType::StructIgnored); },
ExportStatus::TestOnly => continue,
+ ExportStatus::NotImplementable => panic!("(C-not implementable) should only appear on traits!"),
}
}
},
match export_status(&e.attrs) {
ExportStatus::Export if is_enum_opaque(e) => { declared.insert(e.ident.clone(), DeclType::EnumIgnored); },
ExportStatus::Export => { declared.insert(e.ident.clone(), DeclType::MirroredEnum); },
+ ExportStatus::NotImplementable => panic!("(C-not implementable) should only appear on traits!"),
_ => continue,
}
}
},
- syn::Item::Trait(t) if export_status(&t.attrs) == ExportStatus::Export => {
- if let syn::Visibility::Public(_) = t.vis {
- declared.insert(t.ident.clone(), DeclType::Trait(t));
+ syn::Item::Trait(t) => {
+ match export_status(&t.attrs) {
+ ExportStatus::Export|ExportStatus::NotImplementable => {
+ if let syn::Visibility::Public(_) = t.vis {
+ declared.insert(t.ident.clone(), DeclType::Trait(t));
+ }
+ },
+ _ => continue,
}
},
syn::Item::Mod(m) => {
fn initial_clonable_types() -> HashSet<String> {
let mut res = HashSet::new();
res.insert("crate::c_types::u5".to_owned());
+ res.insert("crate::c_types::ThirtyTwoBytes".to_owned());
+ res.insert("crate::c_types::PublicKey".to_owned());
+ res.insert("crate::c_types::Transaction".to_owned());
+ res.insert("crate::c_types::TxOut".to_owned());
+ res.insert("crate::c_types::Signature".to_owned());
+ res.insert("crate::c_types::RecoverableSignature".to_owned());
+ res.insert("crate::c_types::Secp256k1Error".to_owned());
+ res.insert("crate::c_types::IOError".to_owned());
res
}
if self.is_primitive(ty) { return true; }
match ty {
"()" => true,
- "crate::c_types::Signature" => true,
- "crate::c_types::RecoverableSignature" => true,
- "crate::c_types::TxOut" => true,
_ => false,
}
}
"[u8; 3]" if !is_ref => Some("crate::c_types::ThreeBytes"), // Used for RGB values
"str" if is_ref => Some("crate::c_types::Str"),
- "String" => Some("crate::c_types::Str"),
+ "alloc::string::String"|"String" => Some("crate::c_types::Str"),
- "std::time::Duration" => Some("u64"),
+ "std::time::Duration"|"core::time::Duration" => Some("u64"),
"std::time::SystemTime" => Some("u64"),
"std::io::Error" => Some("crate::c_types::IOError"),
"bech32::u5" => Some("crate::c_types::u5"),
+ "core::num::NonZeroU8" => Some("u8"),
"bitcoin::secp256k1::key::PublicKey"|"bitcoin::secp256k1::PublicKey"|"secp256k1::key::PublicKey"
=> Some("crate::c_types::PublicKey"),
"bitcoin::blockdata::block::BlockHeader" if is_ref => Some("*const [u8; 80]"),
"bitcoin::blockdata::block::Block" if is_ref => Some("crate::c_types::u8slice"),
+ "bitcoin::hash_types::PubkeyHash"|"bitcoin::hash_types::WPubkeyHash"|"bitcoin::hash_types::ScriptHash"
+ if is_ref => Some("*const [u8; 20]"),
+ "bitcoin::hash_types::WScriptHash"
+ if is_ref => Some("*const [u8; 32]"),
+
// Newtypes that we just expose in their original form.
"bitcoin::hash_types::Txid"|"bitcoin::hash_types::BlockHash"|"bitcoin_hashes::sha256::Hash"
if is_ref => Some("*const [u8; 32]"),
"[usize]" if is_ref => Some(""),
"str" if is_ref => Some(""),
- "String" => Some(""),
+ "alloc::string::String"|"String" => Some(""),
+ "std::io::Error" if !is_ref => Some(""),
// Note that we'll panic for String if is_ref, as we only have non-owned memory, we
// cannot create a &String.
- "std::time::Duration" => Some("std::time::Duration::from_secs("),
+ "std::time::Duration"|"core::time::Duration" => Some("std::time::Duration::from_secs("),
"std::time::SystemTime" => Some("(::std::time::SystemTime::UNIX_EPOCH + std::time::Duration::from_secs("),
"bech32::u5" => Some(""),
+ "core::num::NonZeroU8" => Some("core::num::NonZeroU8::new("),
"bitcoin::secp256k1::key::PublicKey"|"bitcoin::secp256k1::PublicKey"|"secp256k1::key::PublicKey"
if is_ref => Some("&"),
"bitcoin::blockdata::block::BlockHeader" => Some("&::bitcoin::consensus::encode::deserialize(unsafe { &*"),
"bitcoin::blockdata::block::Block" if is_ref => Some("&::bitcoin::consensus::encode::deserialize("),
+ "bitcoin::hash_types::PubkeyHash" if is_ref =>
+ Some("&bitcoin::hash_types::PubkeyHash::from_hash(bitcoin::hashes::Hash::from_inner(unsafe { *"),
+ "bitcoin::hash_types::WPubkeyHash" if is_ref =>
+ Some("&bitcoin::hash_types::WPubkeyHash::from_hash(bitcoin::hashes::Hash::from_inner(unsafe { *"),
+ "bitcoin::hash_types::ScriptHash" if is_ref =>
+ Some("&bitcoin::hash_types::ScriptHash::from_hash(bitcoin::hashes::Hash::from_inner(unsafe { *"),
+ "bitcoin::hash_types::WScriptHash" if is_ref =>
+ Some("&bitcoin::hash_types::WScriptHash::from_hash(bitcoin::hashes::Hash::from_inner(unsafe { *"),
+
// Newtypes that we just expose in their original form.
"bitcoin::hash_types::Txid" if is_ref => Some("&::bitcoin::hash_types::Txid::from_slice(&unsafe { &*"),
"bitcoin::hash_types::Txid" if !is_ref => Some("::bitcoin::hash_types::Txid::from_slice(&"),
"[usize]" if is_ref => Some(".to_slice()"),
"str" if is_ref => Some(".into_str()"),
- "String" => Some(".into_string()"),
+ "alloc::string::String"|"String" => Some(".into_string()"),
+ "std::io::Error" if !is_ref => Some(".to_rust()"),
- "std::time::Duration" => Some(")"),
+ "std::time::Duration"|"core::time::Duration" => Some(")"),
"std::time::SystemTime" => Some("))"),
"bech32::u5" => Some(".into()"),
+ "core::num::NonZeroU8" => Some(").expect(\"Value must be non-zero\")"),
"bitcoin::secp256k1::key::PublicKey"|"bitcoin::secp256k1::PublicKey"|"secp256k1::key::PublicKey"
=> Some(".into_rust()"),
"bitcoin::blockdata::block::BlockHeader" => Some(" }).unwrap()"),
"bitcoin::blockdata::block::Block" => Some(".to_slice()).unwrap()"),
+ "bitcoin::hash_types::PubkeyHash"|"bitcoin::hash_types::WPubkeyHash"|
+ "bitcoin::hash_types::ScriptHash"|"bitcoin::hash_types::WScriptHash"
+ if is_ref => Some(" }.clone()))"),
+
// Newtypes that we just expose in their original form.
"bitcoin::hash_types::Txid" if is_ref => Some(" }[..]).unwrap()"),
"bitcoin::hash_types::Txid" => Some(".data[..]).unwrap()"),
"[usize]" if is_ref => Some("local_"),
"str" if is_ref => Some(""),
- "String" => Some(""),
+ "alloc::string::String"|"String" => Some(""),
- "std::time::Duration" => Some(""),
+ "std::time::Duration"|"core::time::Duration" => Some(""),
"std::time::SystemTime" => Some(""),
"std::io::Error" if !is_ref => Some("crate::c_types::IOError::from_rust("),
"[usize]" if is_ref => Some(""),
"str" if is_ref => Some(".into()"),
- "String" if is_ref => Some(".as_str().into()"),
- "String" => Some(".into()"),
+ "alloc::string::String"|"String" if is_ref => Some(".as_str().into()"),
+ "alloc::string::String"|"String" => Some(".into()"),
- "std::time::Duration" => Some(".as_secs()"),
+ "std::time::Duration"|"core::time::Duration" => Some(".as_secs()"),
"std::time::SystemTime" => Some(".duration_since(::std::time::SystemTime::UNIX_EPOCH).expect(\"Times must be post-1970\").as_secs()"),
"std::io::Error" if !is_ref => Some(")"),
}
/// Returns true if the path is a "transparent" container, ie an Option or a container which does
/// not require a generated continer class.
- fn is_path_transparent_container(&self, full_path: &syn::Path, generics: Option<&GenericTypes>, is_ref: bool) -> bool {
+ pub fn is_path_transparent_container(&self, full_path: &syn::Path, generics: Option<&GenericTypes>, is_ref: bool) -> bool {
let inner_iter = match &full_path.segments.last().unwrap().arguments {
syn::PathArguments::None => return false,
syn::PathArguments::AngleBracketed(args) => args.args.iter().map(|arg| {
(").into(), Err(mut e) => crate::c_types::CResultTempl::err(".to_string(), "e".to_string())],
").into() }", ContainerPrefixLocation::PerConv))
},
- "Vec" if !is_ref => {
- Some(("Vec::new(); for mut item in ", vec![(format!(".drain(..) {{ local_{}.push(", var_name), "item".to_string())], "); }", ContainerPrefixLocation::PerConv))
- },
"Vec" => {
- // We should only get here if the single contained has an inner
- assert!(self.c_type_has_inner(single_contained.unwrap()));
- Some(("Vec::new(); for mut item in ", vec![(format!(".drain(..) {{ local_{}.push(", var_name), "*item".to_string())], "); }", ContainerPrefixLocation::PerConv))
+ if is_ref {
+ // We should only get here if the single contained has an inner
+ assert!(self.c_type_has_inner(single_contained.unwrap()));
+ }
+ Some(("Vec::new(); for mut item in ", vec![(format!(".drain(..) {{ local_{}.push(", var_name), "item".to_string())], "); }", ContainerPrefixLocation::PerConv))
},
"Slice" => {
- Some(("Vec::new(); for item in ", vec![(format!(".iter() {{ local_{}.push(", var_name), "*item".to_string())], "); }", ContainerPrefixLocation::PerConv))
+ Some(("Vec::new(); for item in ", vec![(format!(".iter() {{ local_{}.push(", var_name), "item".to_string())], "); }", ContainerPrefixLocation::PerConv))
},
"Option" => {
let contained_struct = if let Some(syn::Type::Path(p)) = single_contained {
let is_inner_ref = if let Some(syn::Type::Reference(_)) = single_contained { true } else { false };
if is_ref {
return Some(("if ", vec![
- (".is_none() { std::ptr::null() } else { ".to_owned(),
+ (".is_none() { std::ptr::null() } else { ObjOps::nonnull_ptr_to_inner(".to_owned(),
format!("({}{}.unwrap())", var_access, if is_inner_ref { "" } else { ".as_ref()" }))
- ], " }", ContainerPrefixLocation::OutsideConv));
+ ], ") }", ContainerPrefixLocation::OutsideConv));
} else {
return Some(("if ", vec![
(".is_none() { std::ptr::null_mut() } else { ".to_owned(), format!("({}.unwrap())", var_access))
}
}
+ /// Constructs a reference to the given type, possibly tweaking the type if relevant to make it
+ /// convertable to C.
+ pub fn create_ownable_reference(&self, t: &syn::Type, generics: Option<&GenericTypes>) -> Option<syn::Type> {
+ let default_value = Some(syn::Type::Reference(syn::TypeReference {
+ and_token: syn::Token!(&)(Span::call_site()), lifetime: None, mutability: None,
+ elem: Box::new(t.clone()) }));
+ match generics.resolve_type(t) {
+ syn::Type::Path(p) => {
+ if let Some(resolved_path) = self.maybe_resolve_path(&p.path, generics) {
+ if resolved_path != "Vec" { return default_value; }
+ if p.path.segments.len() != 1 { unimplemented!(); }
+ let only_seg = p.path.segments.iter().next().unwrap();
+ if let syn::PathArguments::AngleBracketed(args) = &only_seg.arguments {
+ if args.args.len() != 1 { unimplemented!(); }
+ let inner_arg = args.args.iter().next().unwrap();
+ if let syn::GenericArgument::Type(ty) = &inner_arg {
+ let mut can_create = self.c_type_has_inner(&ty);
+ if let syn::Type::Path(inner) = ty {
+ if inner.path.segments.len() == 1 &&
+ format!("{}", inner.path.segments[0].ident) == "Vec" {
+ can_create = true;
+ }
+ }
+ if !can_create { return default_value; }
+ if let Some(inner_ty) = self.create_ownable_reference(&ty, generics) {
+ return Some(syn::Type::Reference(syn::TypeReference {
+ and_token: syn::Token),
+ lifetime: None,
+ mutability: None,
+ elem: Box::new(syn::Type::Slice(syn::TypeSlice {
+ bracket_token: syn::token::Bracket { span: Span::call_site() },
+ elem: Box::new(inner_ty)
+ }))
+ }));
+ } else { return default_value; }
+ } else { unimplemented!(); }
+ } else { unimplemented!(); }
+ } else { return None; }
+ },
+ _ => default_value,
+ }
+ }
+
// *************************************************
// *** Type definition during main.rs processing ***
// *************************************************
pub fn c_type_has_inner_from_path(&self, full_path: &str) -> bool {
self.crate_types.opaques.get(full_path).is_some()
}
+
/// Returns true if the object at the given path is mapped as X { inner: *mut origX, .. }.
pub fn c_type_has_inner(&self, ty: &syn::Type) -> bool {
match ty {
syn::Type::Path(p) => {
- let full_path = self.resolve_path(&p.path, None);
- self.c_type_has_inner_from_path(&full_path)
+ if let Some(full_path) = self.maybe_resolve_path(&p.path, None) {
+ self.c_type_has_inner_from_path(&full_path)
+ } else { false }
},
syn::Type::Reference(r) => {
self.c_type_has_inner(&*r.elem)
} else if let syn::Type::Reference(r) = &*s.elem {
if let syn::Type::Path(p) = &*r.elem {
write!(w, "{}", sliceconv(self.c_type_has_inner_from_path(&self.resolve_path(&p.path, generics)), None)).unwrap();
+ } else if let syn::Type::Slice(_) = &*r.elem {
+ write!(w, "{}", sliceconv(false, None)).unwrap();
} else { unimplemented!(); }
} else if let syn::Type::Tuple(t) = &*s.elem {
assert!(!t.elems.is_empty());
DeclType::MirroredEnum => write!(w, "crate::{}::native_into(", decl_path).unwrap(),
DeclType::EnumIgnored|DeclType::StructImported if is_ref && ptr_for_ref && from_ptr =>
write!(w, "crate::{} {{ inner: unsafe {{ (", decl_path).unwrap(),
- DeclType::EnumIgnored|DeclType::StructImported if is_ref && ptr_for_ref =>
- write!(w, "crate::{} {{ inner: unsafe {{ ( (&(*", decl_path).unwrap(),
- DeclType::EnumIgnored|DeclType::StructImported if is_ref =>
- write!(w, "&crate::{} {{ inner: unsafe {{ (", decl_path).unwrap(),
+ DeclType::EnumIgnored|DeclType::StructImported if is_ref => {
+ if !ptr_for_ref { write!(w, "&").unwrap(); }
+ write!(w, "crate::{} {{ inner: unsafe {{ ObjOps::nonnull_ptr_to_inner((", decl_path).unwrap()
+ },
DeclType::EnumIgnored|DeclType::StructImported if !is_ref && from_ptr =>
write!(w, "crate::{} {{ inner: ", decl_path).unwrap(),
DeclType::EnumIgnored|DeclType::StructImported if !is_ref =>
- write!(w, "crate::{} {{ inner: Box::into_raw(Box::new(", decl_path).unwrap(),
+ write!(w, "crate::{} {{ inner: ObjOps::heap_alloc(", decl_path).unwrap(),
DeclType::Trait(_) if is_ref => write!(w, "").unwrap(),
- DeclType::Trait(_) if !is_ref => {},
+ DeclType::Trait(_) if !is_ref => write!(w, "Into::into(").unwrap(),
_ => panic!("{:?}", decl_path),
}
});
DeclType::MirroredEnum => write!(w, ")").unwrap(),
DeclType::EnumIgnored|DeclType::StructImported if is_ref && ptr_for_ref && from_ptr =>
write!(w, " as *const _) as *mut _ }}, is_owned: false }}").unwrap(),
- DeclType::EnumIgnored|DeclType::StructImported if is_ref && ptr_for_ref =>
- write!(w, ") as *const _) as *mut _) }}, is_owned: false }}").unwrap(),
DeclType::EnumIgnored|DeclType::StructImported if is_ref =>
- write!(w, " as *const _) as *mut _ }}, is_owned: false }}").unwrap(),
+ write!(w, " as *const _) as *mut _) }}, is_owned: false }}").unwrap(),
DeclType::EnumIgnored|DeclType::StructImported if !is_ref && from_ptr =>
write!(w, ", is_owned: true }}").unwrap(),
- DeclType::EnumIgnored|DeclType::StructImported if !is_ref => write!(w, ")), is_owned: true }}").unwrap(),
+ DeclType::EnumIgnored|DeclType::StructImported if !is_ref => write!(w, "), is_owned: true }}").unwrap(),
DeclType::Trait(_) if is_ref => {},
DeclType::Trait(_) => {
// This is used when we're converting a concrete Rust type into a C trait
// for use when a Rust trait method returns an associated type.
// Because all of our C traits implement From<RustTypesImplementingTraits>
// we can just call .into() here and be done.
- write!(w, ".into()").unwrap()
+ write!(w, ")").unwrap()
},
_ => unimplemented!(),
});
self.write_to_c_conversion_inline_suffix_inner(w, t, generics, false, ptr_for_ref, false);
}
- fn write_from_c_conversion_prefix_inner<W: std::io::Write>(&self, w: &mut W, t: &syn::Type, generics: Option<&GenericTypes>, is_ref: bool, ptr_for_ref: bool) {
+ fn write_from_c_conversion_prefix_inner<W: std::io::Write>(&self, w: &mut W, t: &syn::Type, generics: Option<&GenericTypes>, is_ref: bool, _ptr_for_ref: bool) {
self.write_conversion_inline_intern(w, t, generics, is_ref, false, false, "() /*", true, |_, _| "&local_".to_owned(),
|a, b, _c| self.from_c_conversion_prefix_from_path(a, b),
- |w, decl_type, _full_path, is_ref, is_mut| match decl_type {
- DeclType::StructImported if is_ref && ptr_for_ref => write!(w, "unsafe {{ &*(*").unwrap(),
- DeclType::StructImported if is_mut && is_ref => write!(w, "unsafe {{ &mut *").unwrap(),
- DeclType::StructImported if is_ref => write!(w, "unsafe {{ &*").unwrap(),
+ |w, decl_type, _full_path, is_ref, _is_mut| match decl_type {
+ DeclType::StructImported if is_ref => write!(w, "").unwrap(),
DeclType::StructImported if !is_ref => write!(w, "*unsafe {{ Box::from_raw(").unwrap(),
DeclType::MirroredEnum if is_ref => write!(w, "&").unwrap(),
DeclType::MirroredEnum => {},
(true, Some(_)) => unreachable!(),
},
|a, b, _c| self.from_c_conversion_suffix_from_path(a, b),
- |w, decl_type, _full_path, is_ref, _is_mut| match decl_type {
- DeclType::StructImported if is_ref && ptr_for_ref => write!(w, ").inner }}").unwrap(),
- DeclType::StructImported if is_ref => write!(w, ".inner }}").unwrap(),
+ |w, decl_type, _full_path, is_ref, is_mut| match decl_type {
+ DeclType::StructImported if is_ref && ptr_for_ref => write!(w, "XXX unimplemented").unwrap(),
+ DeclType::StructImported if is_mut && is_ref => write!(w, ".get_native_mut_ref()").unwrap(),
+ DeclType::StructImported if is_ref => write!(w, ".get_native_ref()").unwrap(),
DeclType::StructImported if !is_ref => write!(w, ".take_inner()) }}").unwrap(),
DeclType::MirroredEnum if is_ref => write!(w, ".to_native()").unwrap(),
DeclType::MirroredEnum => write!(w, ".into_native()").unwrap(),
} else { None }
},
|w, decl_type, _full_path, is_ref, _is_mut| match decl_type {
- DeclType::StructImported if !is_ref => write!(w, "unsafe {{ &*").unwrap(),
+ DeclType::StructImported if !is_ref => write!(w, "").unwrap(),
_ => unimplemented!(),
});
}
},
|a, b, _c| self.from_c_conversion_suffix_from_path(a, b),
|w, decl_type, _full_path, is_ref, _is_mut| match decl_type {
- DeclType::StructImported if !is_ref => write!(w, ".inner }}").unwrap(),
+ DeclType::StructImported if !is_ref => write!(w, ".get_native_ref()").unwrap(),
_ => unimplemented!(),
});
}
if prefix_location == ContainerPrefixLocation::PerConv {
var_prefix(w, conv_ty, generics, is_ref && ty_has_inner, ptr_for_ref, false);
} else if !is_ref && !needs_ref_map && to_c && only_contained_has_inner {
- write!(w, "Box::into_raw(Box::new(").unwrap();
+ write!(w, "ObjOps::heap_alloc(").unwrap();
}
write!(w, "{}{}", if contains_slice { "local_" } else { "" }, if new_var { new_var_name } else { var_access }).unwrap();
if prefix_location == ContainerPrefixLocation::PerConv {
var_suffix(w, conv_ty, generics, is_ref && ty_has_inner, ptr_for_ref, false);
} else if !is_ref && !needs_ref_map && to_c && only_contained_has_inner {
- write!(w, "))").unwrap();
+ write!(w, ")").unwrap();
}
write!(w, " }}").unwrap();
}
if let syn::PathArguments::AngleBracketed(args) = &p.path.segments.iter().next().unwrap().arguments {
convert_container!(resolved_path, args.args.len(), || args.args.iter().map(|arg| {
if let syn::GenericArgument::Type(ty) = arg {
- ty
+ generics.resolve_type(ty)
} else { unimplemented!(); }
}));
} else { unimplemented!(); }
} else if let syn::Type::Reference(ty) = &*s.elem {
let tyref = [&*ty.elem];
is_ref = true;
- convert_container!("Slice", 1, || tyref.iter().map(|t| *t));
+ convert_container!("Slice", 1, || tyref.iter().map(|t| generics.resolve_type(*t)));
unimplemented!("convert_container should return true as container_lookup should succeed for slices");
} else if let syn::Type::Tuple(t) = &*s.elem {
// When mapping into a temporary new var, we need to own all the underlying objects.
} else { return false; }
}
}
- if let syn::Type::Tuple(tuple) = arg {
- if tuple.elems.len() == 0 {
- write!(w, "None").unwrap();
- write!(mangled_type, "None").unwrap();
- } else {
- let mut mangled_tuple_type: Vec<u8> = Vec::new();
-
- // Figure out what the mangled type should look like. To disambiguate
- // ((A, B), C) and (A, B, C) we prefix the generic args with a _ and suffix
- // them with a Z. Ideally we wouldn't use Z, but not many special chars are
- // available for use in type names.
- write!(w, "C{}Tuple_", tuple.elems.len()).unwrap();
- write!(mangled_type, "C{}Tuple_", tuple.elems.len()).unwrap();
- write!(mangled_tuple_type, "C{}Tuple_", tuple.elems.len()).unwrap();
- for elem in tuple.elems.iter() {
- if let syn::Type::Path(p) = elem {
- write_path!(p, Some(&mut mangled_tuple_type));
- } else if let syn::Type::Reference(refelem) = elem {
- if let syn::Type::Path(p) = &*refelem.elem {
+ match generics.resolve_type(arg) {
+ syn::Type::Tuple(tuple) => {
+ if tuple.elems.len() == 0 {
+ write!(w, "None").unwrap();
+ write!(mangled_type, "None").unwrap();
+ } else {
+ let mut mangled_tuple_type: Vec<u8> = Vec::new();
+
+ // Figure out what the mangled type should look like. To disambiguate
+ // ((A, B), C) and (A, B, C) we prefix the generic args with a _ and suffix
+ // them with a Z. Ideally we wouldn't use Z, but not many special chars are
+ // available for use in type names.
+ write!(w, "C{}Tuple_", tuple.elems.len()).unwrap();
+ write!(mangled_type, "C{}Tuple_", tuple.elems.len()).unwrap();
+ write!(mangled_tuple_type, "C{}Tuple_", tuple.elems.len()).unwrap();
+ for elem in tuple.elems.iter() {
+ if let syn::Type::Path(p) = elem {
write_path!(p, Some(&mut mangled_tuple_type));
+ } else if let syn::Type::Reference(refelem) = elem {
+ if let syn::Type::Path(p) = &*refelem.elem {
+ write_path!(p, Some(&mut mangled_tuple_type));
+ } else { return false; }
} else { return false; }
- } else { return false; }
- }
- write!(w, "Z").unwrap();
- write!(mangled_type, "Z").unwrap();
- write!(mangled_tuple_type, "Z").unwrap();
- if !self.check_create_container(String::from_utf8(mangled_tuple_type).unwrap(),
- &format!("{}Tuple", tuple.elems.len()), tuple.elems.iter().collect(), generics, is_ref) {
- return false;
+ }
+ write!(w, "Z").unwrap();
+ write!(mangled_type, "Z").unwrap();
+ write!(mangled_tuple_type, "Z").unwrap();
+ if !self.check_create_container(String::from_utf8(mangled_tuple_type).unwrap(),
+ &format!("{}Tuple", tuple.elems.len()), tuple.elems.iter().collect(), generics, is_ref) {
+ return false;
+ }
}
- }
- } else if let syn::Type::Path(p_arg) = arg {
- write_path!(p_arg, None);
- } else if let syn::Type::Reference(refty) = arg {
- if let syn::Type::Path(p_arg) = &*refty.elem {
+ },
+ syn::Type::Path(p_arg) => {
write_path!(p_arg, None);
- } else if let syn::Type::Slice(_) = &*refty.elem {
- // write_c_type will actually do exactly what we want here, we just need to
- // make it a pointer so that its an option. Note that we cannot always convert
- // the Vec-as-slice (ie non-ref types) containers, so sometimes need to be able
- // to edit it, hence we use *mut here instead of *const.
- if args.len() != 1 { return false; }
- write!(w, "*mut ").unwrap();
- self.write_c_type(w, arg, None, true);
- } else { return false; }
- } else if let syn::Type::Array(a) = arg {
- if let syn::Type::Path(p_arg) = &*a.elem {
- let resolved = self.resolve_path(&p_arg.path, generics);
- if !self.is_primitive(&resolved) { return false; }
- if let syn::Expr::Lit(syn::ExprLit { lit: syn::Lit::Int(len), .. }) = &a.len {
- if self.c_type_from_path(&format!("[{}; {}]", resolved, len.base10_digits()), is_ref, ptr_for_ref).is_none() { return false; }
- write!(w, "_{}{}", resolved, len.base10_digits()).unwrap();
- write!(mangled_type, "_{}{}", resolved, len.base10_digits()).unwrap();
+ },
+ syn::Type::Reference(refty) => {
+ if let syn::Type::Path(p_arg) = &*refty.elem {
+ write_path!(p_arg, None);
+ } else if let syn::Type::Slice(_) = &*refty.elem {
+ // write_c_type will actually do exactly what we want here, we just need to
+ // make it a pointer so that its an option. Note that we cannot always convert
+ // the Vec-as-slice (ie non-ref types) containers, so sometimes need to be able
+ // to edit it, hence we use *mut here instead of *const.
+ if args.len() != 1 { return false; }
+ write!(w, "*mut ").unwrap();
+ self.write_c_type(w, arg, None, true);
+ } else { return false; }
+ },
+ syn::Type::Array(a) => {
+ if let syn::Type::Path(p_arg) = &*a.elem {
+ let resolved = self.resolve_path(&p_arg.path, generics);
+ if !self.is_primitive(&resolved) { return false; }
+ if let syn::Expr::Lit(syn::ExprLit { lit: syn::Lit::Int(len), .. }) = &a.len {
+ if self.c_type_from_path(&format!("[{}; {}]", resolved, len.base10_digits()), is_ref, ptr_for_ref).is_none() { return false; }
+ write!(w, "_{}{}", resolved, len.base10_digits()).unwrap();
+ write!(mangled_type, "_{}{}", resolved, len.base10_digits()).unwrap();
+ } else { return false; }
} else { return false; }
- } else { return false; }
- } else { return false; }
+ },
+ _ => { return false; },
+ }
}
if self.is_transparent_container(ident, is_ref, args.iter().map(|a| *a)) { return true; }
// Push the "end of type" Z
} else { return false; };
write!(w, "{}::{}", Self::generated_container_path(), mangled_container).unwrap();
self.check_create_container(mangled_container, "Vec", vec![&*r.elem], generics, false)
+ } else if let syn::Type::Slice(sl2) = &*r.elem {
+ if let syn::Type::Reference(r2) = &*sl2.elem {
+ if let syn::Type::Path(p) = &*r2.elem {
+ // Slices with slices with opaque types (with is_owned flags) are mapped as non-ref Vecs
+ let resolved = self.resolve_path(&p.path, generics);
+ let mangled_container = if let Some(ident) = self.crate_types.opaques.get(&resolved) {
+ format!("CVec_CVec_{}ZZ", ident)
+ } else { return false; };
+ write!(w, "{}::{}", Self::generated_container_path(), mangled_container).unwrap();
+ let inner = &r2.elem;
+ let vec_ty: syn::Type = syn::parse_quote!(Vec<#inner>);
+ self.check_create_container(mangled_container, "Vec", vec![&vec_ty], generics, false)
+ } else { false }
+ } else { false }
} else { false }
} else if let syn::Type::Tuple(_) = &*s.elem {
let mut args = syn::punctuated::Punctuated::<_, syn::token::Comma>::new();
projects / ldk-c-bindings / blobdiff