pub mirrored_enums: HashMap<String, &'a syn::ItemEnum>,
/// Traits which are mapped as a pointer + jump table
pub traits: HashMap<String, &'a syn::ItemTrait>,
+ /// Aliases from paths to some other Type
+ pub type_aliases: HashMap<String, syn::Type>,
/// Template continer types defined, map from mangled type name -> whether a destructor fn
/// exists.
///
"bitcoin::blockdata::script::Script" if is_ref => Some("crate::c_types::u8slice"),
"bitcoin::blockdata::script::Script" if !is_ref => Some("crate::c_types::derived::CVec_u8Z"),
"bitcoin::blockdata::transaction::OutPoint" if is_ref => Some("crate::chain::transaction::OutPoint"),
- "bitcoin::blockdata::transaction::Transaction" if is_ref && !ptr_for_ref => Some("crate::c_types::Transaction"),
- "bitcoin::blockdata::transaction::Transaction" => Some("crate::c_types::derived::CVec_u8Z"),
+ "bitcoin::blockdata::transaction::Transaction" => Some("crate::c_types::Transaction"),
"bitcoin::blockdata::transaction::TxOut" if !is_ref => Some("crate::c_types::TxOut"),
"bitcoin::OutPoint" => Some("crate::chain::transaction::OutPoint"),
"bitcoin::network::constants::Network" => Some("crate::bitcoin::network::Network"),
"bitcoin::blockdata::script::Script" if is_ref => Some("&::bitcoin::blockdata::script::Script::from(Vec::from("),
"bitcoin::blockdata::script::Script" if !is_ref => Some("::bitcoin::blockdata::script::Script::from("),
"bitcoin::blockdata::transaction::Transaction" if is_ref => Some("&"),
- "bitcoin::blockdata::transaction::Transaction" => Some("::bitcoin::consensus::encode::deserialize(&"),
+ "bitcoin::blockdata::transaction::Transaction" => Some(""),
"bitcoin::blockdata::transaction::TxOut" if !is_ref => Some(""),
"bitcoin::network::constants::Network" => Some(""),
"bitcoin::blockdata::block::BlockHeader" => Some("&::bitcoin::consensus::encode::deserialize(unsafe { &*"),
"bitcoin::secp256k1::key::SecretKey" if is_ref => Some("}[..]).unwrap()"),
"bitcoin::blockdata::script::Script" if is_ref => Some(".to_slice()))"),
"bitcoin::blockdata::script::Script" if !is_ref => Some(".into_rust())"),
- "bitcoin::blockdata::transaction::Transaction" if is_ref => Some(".into_bitcoin()"),
- "bitcoin::blockdata::transaction::Transaction" => Some(".into_rust()[..]).unwrap()"),
+ "bitcoin::blockdata::transaction::Transaction" => Some(".into_bitcoin()"),
"bitcoin::blockdata::transaction::TxOut" if !is_ref => Some(".into_rust()"),
"bitcoin::network::constants::Network" => Some(".into_bitcoin()"),
"bitcoin::blockdata::block::BlockHeader" => Some(" }).unwrap()"),
"bitcoin::secp256k1::Error" if !is_ref => Some("crate::c_types::Secp256k1Error::from_rust("),
"bitcoin::blockdata::script::Script" if is_ref => Some("crate::c_types::u8slice::from_slice(&"),
"bitcoin::blockdata::script::Script" if !is_ref => Some(""),
- "bitcoin::blockdata::transaction::Transaction" if is_ref && !ptr_for_ref => Some("crate::c_types::Transaction::from_slice(&local_"),
- "bitcoin::blockdata::transaction::Transaction" => Some("local_"),
+ "bitcoin::blockdata::transaction::Transaction" => Some("crate::c_types::Transaction::from_vec(local_"),
"bitcoin::blockdata::transaction::TxOut" if !is_ref => Some("crate::c_types::TxOut::from_rust("),
"bitcoin::blockdata::block::BlockHeader" if is_ref => Some("&local_"),
"bitcoin::blockdata::block::Block" if is_ref => Some("crate::c_types::u8slice::from_slice(&local_"),
"bitcoin::secp256k1::Error" if !is_ref => Some(")"),
"bitcoin::blockdata::script::Script" if is_ref => Some("[..])"),
"bitcoin::blockdata::script::Script" if !is_ref => Some(".into_bytes().into()"),
- "bitcoin::blockdata::transaction::Transaction" if is_ref && !ptr_for_ref => Some(")"),
- "bitcoin::blockdata::transaction::Transaction" => Some(".into()"),
+ "bitcoin::blockdata::transaction::Transaction" => Some(")"),
"bitcoin::blockdata::transaction::TxOut" if !is_ref => Some(")"),
"bitcoin::blockdata::block::BlockHeader" if is_ref => Some(""),
"bitcoin::blockdata::block::Block" if is_ref => Some(")"),
if let Some(t) = single_contained {
let mut v = Vec::new();
- let needs_deref = self.write_empty_rust_val_check_suffix(generics, &mut v, t);
+ let (needs_deref, ret_ref) = self.write_empty_rust_val_check_suffix(generics, &mut v, t);
let s = String::from_utf8(v).unwrap();
- if needs_deref {
+ if needs_deref && ret_ref {
return Some(("if ", vec![
(format!("{} {{ None }} else {{ Some(", s), format!("unsafe {{ &mut *{} }}", var_access))
], ") }"));
+ } else if needs_deref {
+ return Some(("if ", vec![
+ (format!("{} {{ None }} else {{ Some(", s), format!("unsafe {{ *Box::from_raw({}) }}", var_access))
+ ], ") }"));
} else {
return Some(("if ", vec![
(format!("{} {{ None }} else {{ Some(", s), format!("{}", var_access))
} else { p_arg };
if p.leading_colon.is_some() {
- // At some point we may need this, but for now, its unused, so just fail.
- return None;
+ Some(p.segments.iter().enumerate().map(|(idx, seg)| {
+ format!("{}{}", if idx == 0 { "" } else { "::" }, seg.ident)
+ }).collect())
} else if let Some(id) = p.get_ident() {
self.maybe_resolve_ident(id)
} else {
let mut seg_iter = p.segments.iter();
let first_seg = seg_iter.next().unwrap();
let remaining: String = seg_iter.map(|seg| {
- if let syn::PathArguments::None = seg.arguments {
- format!("{}", seg.ident)
- } else {
- format!("{}", seg.ident)
- }
+ format!("::{}", seg.ident)
}).collect();
if let Some(imp) = self.imports.get(&first_seg.ident) {
if remaining != "" {
- Some(imp.clone() + "::" + &remaining)
+ Some(imp.clone() + &remaining)
} else {
Some(imp.clone())
}
/// Prints a suffix to determine if a variable is empty (ie was set by write_empty_rust_val),
/// returning whether we need to dereference the inner value before using it (ie it is a
/// pointer).
- pub fn write_empty_rust_val_check_suffix<W: std::io::Write>(&self, generics: Option<&GenericTypes>, w: &mut W, t: &syn::Type) -> bool {
+ pub fn write_empty_rust_val_check_suffix<W: std::io::Write>(&self, generics: Option<&GenericTypes>, w: &mut W, t: &syn::Type) -> (bool, bool) {
match t {
syn::Type::Path(p) => {
let resolved = self.resolve_path(&p.path, generics);
if self.crate_types.opaques.get(&resolved).is_some() {
write!(w, ".inner.is_null()").unwrap();
- false
+ (false, false)
} else {
if let Some(suffix) = self.empty_val_check_suffix_from_path(&resolved) {
write!(w, "{}", suffix).unwrap();
- false // We may eventually need to allow empty_val_check_suffix_from_path to specify if we need a deref or not
+ (false, false) // We may eventually need to allow empty_val_check_suffix_from_path to specify if we need a deref or not
} else {
write!(w, " == std::ptr::null_mut()").unwrap();
- false
+ (true, false)
}
}
},
if let syn::Expr::Lit(l) = &a.len {
if let syn::Lit::Int(i) = &l.lit {
write!(w, " == [0; {}]", i.base10_digits()).unwrap();
- false
+ (false, false)
} else { unimplemented!(); }
} else { unimplemented!(); }
},
// Option<[]> always implies that we want to treat len() == 0 differently from
// None, so we always map an Option<[]> into a pointer.
write!(w, " == std::ptr::null_mut()").unwrap();
- true
+ (true, true)
},
_ => unimplemented!(),
}
ptr_for_ref, tupleconv, prefix, sliceconv, path_lookup, decl_lookup);
},
syn::Type::Path(p) => {
- if p.qself.is_some() || p.path.leading_colon.is_some() {
+ if p.qself.is_some() {
unimplemented!();
}
let resolved_path = self.resolve_path(&p.path, generics);
- if let Some(c_type) = path_lookup(&resolved_path, is_ref, ptr_for_ref) {
+ if let Some(aliased_type) = self.crate_types.type_aliases.get(&resolved_path) {
+ return self.write_conversion_inline_intern(w, aliased_type, None, is_ref, is_mut, ptr_for_ref, tupleconv, prefix, sliceconv, path_lookup, decl_lookup);
+ } else if let Some(c_type) = path_lookup(&resolved_path, is_ref, ptr_for_ref) {
write!(w, "{}", c_type).unwrap();
} else if self.crate_types.opaques.get(&resolved_path).is_some() {
decl_lookup(w, &DeclType::StructImported, &resolved_path, is_ref, is_mut);
if let syn::Type::Path(p) = &*r.elem {
write!(w, "{}", sliceconv(self.c_type_has_inner_from_path(&self.resolve_path(&p.path, generics)))).unwrap();
} else { unimplemented!(); }
+ } else if let syn::Type::Tuple(t) = &*s.elem {
+ assert!(!t.elems.is_empty());
+ if prefix {
+ write!(w, "&local_").unwrap();
+ } else {
+ let mut needs_map = false;
+ for e in t.elems.iter() {
+ if let syn::Type::Reference(_) = e {
+ needs_map = true;
+ }
+ }
+ if needs_map {
+ write!(w, ".iter().map(|(").unwrap();
+ for i in 0..t.elems.len() {
+ write!(w, "{}{}", if i != 0 { ", " } else { "" }, ('a' as u8 + i as u8) as char).unwrap();
+ }
+ write!(w, ")| (").unwrap();
+ for (idx, e) in t.elems.iter().enumerate() {
+ if let syn::Type::Reference(_) = e {
+ write!(w, "{}{}", if idx != 0 { ", " } else { "" }, (idx as u8 + 'a' as u8) as char).unwrap();
+ } else if let syn::Type::Path(_) = e {
+ write!(w, "{}*{}", if idx != 0 { ", " } else { "" }, (idx as u8 + 'a' as u8) as char).unwrap();
+ } else { unimplemented!(); }
+ }
+ write!(w, ")).collect::<Vec<_>>()[..]").unwrap();
+ }
+ }
} else { unimplemented!(); }
},
syn::Type::Tuple(t) => {
}
},
syn::Type::Path(p) => {
- if p.qself.is_some() || p.path.leading_colon.is_some() {
+ if p.qself.is_some() {
unimplemented!();
}
let resolved_path = self.resolve_path(&p.path, generics);
+ if let Some(aliased_type) = self.crate_types.type_aliases.get(&resolved_path) {
+ return self.write_conversion_new_var_intern(w, ident, var, aliased_type, None, is_ref, ptr_for_ref, to_c, path_lookup, container_lookup, var_prefix, var_suffix);
+ }
if self.is_known_container(&resolved_path, is_ref) || self.is_transparent_container(&resolved_path, is_ref) {
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| {
is_ref = true;
convert_container!("Slice", 1, || tyref.iter());
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.
+ // Thus, we drop any references inside the tuple and convert with non-reference types.
+ let mut elems = syn::punctuated::Punctuated::new();
+ for elem in t.elems.iter() {
+ if let syn::Type::Reference(r) = elem {
+ elems.push((*r.elem).clone());
+ } else {
+ elems.push(elem.clone());
+ }
+ }
+ let ty = [syn::Type::Tuple(syn::TypeTuple {
+ paren_token: t.paren_token, elems
+ })];
+ is_ref = false;
+ ptr_for_ref = true;
+ convert_container!("Slice", 1, || ty.iter());
+ unimplemented!("convert_container should return true as container_lookup should succeed for slices");
} else { unimplemented!() }
},
syn::Type::Tuple(t) => {
} else if let syn::Type::Reference(r_arg) = t {
if let syn::Type::Path(p_arg) = &*r_arg.elem {
let resolved = self.resolve_path(&p_arg.path, None);
- if single_ident_generic_path_to_ident(&p_arg.path).is_some() {
- if self.crate_types.opaques.get(&resolved).is_some() {
- write!(w, "crate::{}", resolved).unwrap();
- } else { unimplemented!(); }
- } else { unimplemented!(); }
+ if self.crate_types.opaques.get(&resolved).is_some() {
+ write!(w, "crate::{}", resolved).unwrap();
+ } else {
+ let cty = self.c_type_from_path(&resolved, true, true).expect("Template generics should be opaque or have a predefined mapping");
+ w.write(cty.as_bytes()).unwrap();
+ }
} else { unimplemented!(); }
} else if let syn::Type::Array(a_arg) = t {
if let syn::Type::Path(p_arg) = &*a_arg.elem {
if self.c_type_has_inner_from_path(&subtype) {
if !self.write_c_path_intern(w, &$p_arg.path, generics, is_ref, is_mut, ptr_for_ref) { return false; }
} else {
- if !self.write_c_path_intern(w, &$p_arg.path, generics, true, is_mut, true) { return false; }
+ // Option<T> needs to be converted to a *mut T, ie mut ptr-for-ref
+ if !self.write_c_path_intern(w, &$p_arg.path, generics, true, true, true) { return false; }
}
} else {
if $p_arg.path.segments.len() == 1 {
self.write_c_mangled_container_path_intern(w2, Self::path_to_generic_args(&$p_arg.path),
generics, &subtype, is_ref, is_mut, ptr_for_ref, true);
}
- } else if let Some(id) = single_ident_generic_path_to_ident(&$p_arg.path) {
+ } else {
+ let id = &&$p_arg.path.segments.iter().rev().next().unwrap().ident;
write!(w, "{}", id).unwrap();
write!(mangled_type, "{}", id).unwrap();
if let Some(w2) = $extra_write as Option<&mut Vec<u8>> {
write!(w2, "{}", id).unwrap();
}
- } else { return false; }
+ }
}
}
if let syn::Type::Tuple(tuple) = arg {
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; }
}
write!(w, "Z").unwrap();
fn write_c_type_intern<W: std::io::Write>(&mut self, w: &mut W, t: &syn::Type, generics: Option<&GenericTypes>, is_ref: bool, is_mut: bool, ptr_for_ref: bool) -> bool {
match t {
syn::Type::Path(p) => {
- if p.qself.is_some() || p.path.leading_colon.is_some() {
+ if p.qself.is_some() {
return false;
}
if let Some(full_path) = self.maybe_resolve_path(&p.path, generics) {
if self.is_known_container(&full_path, is_ref) || self.is_transparent_container(&full_path, is_ref) {
return self.write_c_mangled_container_path(w, Self::path_to_generic_args(&p.path), generics, &full_path, is_ref, is_mut, ptr_for_ref);
}
+ if let Some(aliased_type) = self.crate_types.type_aliases.get(&full_path).cloned() {
+ return self.write_c_type_intern(w, &aliased_type, None, is_ref, is_mut, ptr_for_ref);
+ }
}
- if p.path.leading_colon.is_some() { return false; }
self.write_c_path_intern(w, &p.path, generics, is_ref, is_mut, ptr_for_ref)
},
syn::Type::Reference(r) => {
self.check_create_container(mangled_container, "Vec", vec![&*r.elem], generics, false);
true
} else { false }
+ } else if let syn::Type::Tuple(_) = &*s.elem {
+ let mut args = syn::punctuated::Punctuated::new();
+ args.push(syn::GenericArgument::Type((*s.elem).clone()));
+ let mut segments = syn::punctuated::Punctuated::new();
+ segments.push(syn::PathSegment {
+ ident: syn::Ident::new("Vec", Span::call_site()),
+ arguments: syn::PathArguments::AngleBracketed(syn::AngleBracketedGenericArguments {
+ colon2_token: None, lt_token: syn::Token), args, gt_token: syn::Token),
+ })
+ });
+ self.write_c_type_intern(w, &syn::Type::Path(syn::TypePath { qself: None, path: syn::Path { leading_colon: None, segments } }), generics, false, is_mut, ptr_for_ref)
} else { false }
},
syn::Type::Tuple(t) => {
projects / rust-lightning / blobdiff