let mut meth_gen_types = gen_types.push_ctx();
assert!(meth_gen_types.learn_generics(&m.sig.generics, types));
- writeln_docs(w, &m.attrs, "\t");
+ writeln_fn_docs(w, &m.attrs, "\t", types, Some(&meth_gen_types), m.sig.inputs.iter(), &m.sig.output);
if let syn::ReturnType::Type(_, rtype) = &m.sig.output {
if let syn::Type::Reference(r) = &**rtype {
}
let mut cpp_docs = Vec::new();
- writeln_docs(&mut cpp_docs, &m.attrs, "\t * ");
+ writeln_fn_docs(&mut cpp_docs, &m.attrs, "\t * ", types, Some(&meth_gen_types), m.sig.inputs.iter(), &m.sig.output);
let docs_string = "\t/**\n".to_owned() + &String::from_utf8(cpp_docs).unwrap().replace("///", "") + "\t */\n";
write!(w, "\tpub {}: extern \"C\" fn (", m.sig.ident).unwrap();
and_token: syn::Token!(&)(Span::call_site()), lifetime: None, mutability: None,
elem: Box::new(field.ty.clone()) });
if types.understood_c_type(&ref_type, Some(&gen_types)) {
- writeln_docs(w, &field.attrs, "");
+ writeln_arg_docs(w, &field.attrs, "", types, Some(&gen_types), vec![].drain(..), Some(&ref_type));
write!(w, "#[no_mangle]\npub extern \"C\" fn {}_get_{}(this_ptr: &{}) -> ", struct_name, ident, struct_name).unwrap();
types.write_c_type(w, &ref_type, Some(&gen_types), true);
write!(w, " {{\n\tlet mut inner_val = &mut unsafe {{ &mut *this_ptr.inner }}.{};\n\t", ident).unwrap();
}
if types.understood_c_type(&field.ty, Some(&gen_types)) {
- writeln_docs(w, &field.attrs, "");
+ writeln_arg_docs(w, &field.attrs, "", types, Some(&gen_types), vec![("val".to_owned(), &field.ty)].drain(..), None);
write!(w, "#[no_mangle]\npub extern \"C\" fn {}_set_{}(this_ptr: &mut {}, mut val: ", struct_name, ident, struct_name).unwrap();
types.write_c_type(w, &field.ty, Some(&gen_types), false);
write!(w, ") {{\n\t").unwrap();
ExportStatus::NoExport|ExportStatus::TestOnly => continue,
ExportStatus::NotImplementable => panic!("(C-not implementable) must only appear on traits"),
}
+ let mut meth_gen_types = gen_types.push_ctx();
+ assert!(meth_gen_types.learn_generics(&m.sig.generics, types));
if m.defaultness.is_some() { unimplemented!(); }
- writeln_docs(w, &m.attrs, "");
+ writeln_fn_docs(w, &m.attrs, "", types, Some(&meth_gen_types), m.sig.inputs.iter(), &m.sig.output);
if let syn::ReturnType::Type(_, _) = &m.sig.output {
writeln!(w, "#[must_use]").unwrap();
}
DeclType::StructImported => format!("{}", ident),
_ => unimplemented!(),
};
- let mut meth_gen_types = gen_types.push_ctx();
- assert!(meth_gen_types.learn_generics(&m.sig.generics, types));
write_method_params(w, &m.sig, &ret_type, types, Some(&meth_gen_types), false, true);
write!(w, " {{\n\t").unwrap();
write_method_var_decl_body(w, &m.sig, "", types, Some(&meth_gen_types), false);
}
}
+/// Replaces upper case charachters with underscore followed by lower case except the first
+/// charachter and repeated upper case characthers (which are only made lower case).
+fn camel_to_snake_case(camel: &str) -> String {
+ let mut res = "".to_string();
+ let mut last_upper = -1;
+ for (idx, c) in camel.chars().enumerate() {
+ if c.is_uppercase() {
+ if last_upper != idx as isize - 1 { res.push('_'); }
+ res.push(c.to_lowercase().next().unwrap());
+ last_upper = idx as isize;
+ } else {
+ res.push(c);
+ }
+ }
+ res
+}
+
/// Print a mapping of an enum. If all of the enum's fields are C-mapped in some form (or the enum
/// is unitary), we generate an equivalent enum with all types replaced with their C mapped
assert!(gen_types.learn_generics(&e.generics, types));
let mut needs_free = false;
+ let mut constr = Vec::new();
writeln!(w, "#[must_use]\n#[derive(Clone)]\n#[repr(C)]\npub enum {} {{", e.ident).unwrap();
for var in e.variants.iter() {
assert_eq!(export_status(&var.attrs), ExportStatus::Export); // We can't partially-export a mirrored enum
writeln_docs(w, &var.attrs, "\t");
write!(w, "\t{}", var.ident).unwrap();
+ writeln!(&mut constr, "#[no_mangle]\n/// Utility method to constructs a new {}-variant {}", var.ident, e.ident).unwrap();
+ let constr_name = camel_to_snake_case(&format!("{}", var.ident));
+ write!(&mut constr, "pub extern \"C\" fn {}_{}(", e.ident, constr_name).unwrap();
+ let mut empty_tuple_variant = false;
if let syn::Fields::Named(fields) = &var.fields {
needs_free = true;
writeln!(w, " {{").unwrap();
- for field in fields.named.iter() {
+ for (idx, field) in fields.named.iter().enumerate() {
if export_status(&field.attrs) == ExportStatus::TestOnly { continue; }
- writeln_docs(w, &field.attrs, "\t\t");
+ writeln_field_docs(w, &field.attrs, "\t\t", types, Some(&gen_types), &field.ty);
write!(w, "\t\t{}: ", field.ident.as_ref().unwrap()).unwrap();
+ write!(&mut constr, "{}{}: ", if idx != 0 { ", " } else { "" }, field.ident.as_ref().unwrap()).unwrap();
types.write_c_type(w, &field.ty, Some(&gen_types), false);
+ types.write_c_type(&mut constr, &field.ty, Some(&gen_types), false);
writeln!(w, ",").unwrap();
}
write!(w, "\t}}").unwrap();
} else if let syn::Fields::Unnamed(fields) = &var.fields {
- let mut empty_tuple_variant = false;
if fields.unnamed.len() == 1 {
let mut empty_check = Vec::new();
types.write_c_type(&mut empty_check, &fields.unnamed[0].ty, Some(&gen_types), false);
write!(w, "(").unwrap();
for (idx, field) in fields.unnamed.iter().enumerate() {
if export_status(&field.attrs) == ExportStatus::TestOnly { continue; }
+ write!(&mut constr, "{}: ", ('a' as u8 + idx as u8) as char).unwrap();
types.write_c_type(w, &field.ty, Some(&gen_types), false);
+ types.write_c_type(&mut constr, &field.ty, Some(&gen_types), false);
if idx != fields.unnamed.len() - 1 {
write!(w, ",").unwrap();
+ write!(&mut constr, ",").unwrap();
}
}
write!(w, ")").unwrap();
}
}
if var.discriminant.is_some() { unimplemented!(); }
+ write!(&mut constr, ") -> {} {{\n\t{}::{}", e.ident, e.ident, var.ident).unwrap();
+ if let syn::Fields::Named(fields) = &var.fields {
+ writeln!(&mut constr, " {{").unwrap();
+ for field in fields.named.iter() {
+ writeln!(&mut constr, "\t\t{},", field.ident.as_ref().unwrap()).unwrap();
+ }
+ writeln!(&mut constr, "\t}}").unwrap();
+ } else if let syn::Fields::Unnamed(fields) = &var.fields {
+ if !empty_tuple_variant {
+ write!(&mut constr, "(").unwrap();
+ for idx in 0..fields.unnamed.len() {
+ write!(&mut constr, "{}, ", ('a' as u8 + idx as u8) as char).unwrap();
+ }
+ writeln!(&mut constr, ")").unwrap();
+ } else {
+ writeln!(&mut constr, "").unwrap();
+ }
+ }
+ writeln!(&mut constr, "}}").unwrap();
writeln!(w, ",").unwrap();
}
writeln!(w, "}}\nuse {}::{} as native{};\nimpl {} {{", types.module_path, e.ident, e.ident, e.ident).unwrap();
writeln!(w, "pub extern \"C\" fn {}_clone(orig: &{}) -> {} {{", e.ident, e.ident, e.ident).unwrap();
writeln!(w, "\torig.clone()").unwrap();
writeln!(w, "}}").unwrap();
+ w.write_all(&constr).unwrap();
write_cpp_wrapper(cpp_headers, &format!("{}", e.ident), needs_free, None);
}
ExportStatus::NoExport|ExportStatus::TestOnly => return,
ExportStatus::NotImplementable => panic!("(C-not implementable) must only appear on traits"),
}
- writeln_docs(w, &f.attrs, "");
-
let mut gen_types = GenericTypes::new(None);
if !gen_types.learn_generics(&f.sig.generics, types) { return; }
+ writeln_fn_docs(w, &f.attrs, "", types, Some(&gen_types), f.sig.inputs.iter(), &f.sig.output);
+
write!(w, "#[no_mangle]\npub extern \"C\" fn {}(", f.sig.ident).unwrap();
write_method_params(w, &f.sig, "", types, Some(&gen_types), false, true);
write!(w, " {{\n\t").unwrap();
if let syn::Type::Path(p) = &*c.ty {
let resolved_path = type_resolver.resolve_path(&p.path, None);
if type_resolver.is_primitive(&resolved_path) {
- writeln_docs(&mut out, &c.attrs, "");
+ writeln_field_docs(&mut out, &c.attrs, "", &mut type_resolver, None, &*c.ty);
writeln!(out, "\n#[no_mangle]").unwrap();
writeln!(out, "pub static {}: {} = {}::{};", c.ident, resolved_path, module, c.ident).unwrap();
}
projects / ldk-c-bindings / blobdiff