pub struct ImportResolver<'mod_lifetime, 'crate_lft: 'mod_lifetime> {
module_path: &'mod_lifetime str,
- imports: HashMap<syn::Ident, String>,
+ imports: HashMap<syn::Ident, (String, syn::Path)>,
declared: HashMap<syn::Ident, DeclType<'crate_lft>>,
}
impl<'mod_lifetime, 'crate_lft: 'mod_lifetime> ImportResolver<'mod_lifetime, 'crate_lft> {
- fn process_use_intern(imports: &mut HashMap<syn::Ident, String>, u: &syn::UseTree, partial_path: &str) {
+ fn process_use_intern(imports: &mut HashMap<syn::Ident, (String, syn::Path)>, u: &syn::UseTree, partial_path: &str, mut path: syn::punctuated::Punctuated<syn::PathSegment, syn::token::Colon2>) {
match u {
syn::UseTree::Path(p) => {
- let new_path = format!("{}::{}", partial_path, p.ident);
- Self::process_use_intern(imports, &p.tree, &new_path);
+ let new_path = format!("{}{}::", partial_path, p.ident);
+ path.push(syn::PathSegment { ident: p.ident.clone(), arguments: syn::PathArguments::None });
+ Self::process_use_intern(imports, &p.tree, &new_path, path);
},
syn::UseTree::Name(n) => {
- let full_path = format!("{}::{}", partial_path, n.ident);
- imports.insert(n.ident.clone(), full_path);
+ let full_path = format!("{}{}", partial_path, n.ident);
+ path.push(syn::PathSegment { ident: n.ident.clone(), arguments: syn::PathArguments::None });
+ imports.insert(n.ident.clone(), (full_path, syn::Path { leading_colon: Some(syn::Token)), segments: path }));
},
syn::UseTree::Group(g) => {
for i in g.items.iter() {
- Self::process_use_intern(imports, i, partial_path);
+ Self::process_use_intern(imports, i, partial_path, path.clone());
}
},
syn::UseTree::Rename(r) => {
- let full_path = format!("{}::{}", partial_path, r.ident);
- imports.insert(r.rename.clone(), full_path);
+ let full_path = format!("{}{}", partial_path, r.ident);
+ path.push(syn::PathSegment { ident: r.ident.clone(), arguments: syn::PathArguments::None });
+ imports.insert(r.rename.clone(), (full_path, syn::Path { leading_colon: Some(syn::Token)), segments: path }));
},
syn::UseTree::Glob(_) => {
eprintln!("Ignoring * use for {} - this may result in resolution failures", partial_path);
}
}
- pub fn process_use(imports: &mut HashMap<syn::Ident, String>, u: &syn::ItemUse) {
+ fn process_use(imports: &mut HashMap<syn::Ident, (String, syn::Path)>, u: &syn::ItemUse) {
if let syn::Visibility::Public(_) = u.vis {
// We actually only use these for #[cfg(fuzztarget)]
eprintln!("Ignoring pub(use) tree!");
return;
}
if u.leading_colon.is_some() { eprintln!("Ignoring leading-colon use!"); return; }
- match &u.tree {
- syn::UseTree::Path(p) => {
- let new_path = format!("{}", p.ident);
- Self::process_use_intern(imports, &p.tree, &new_path);
- },
- syn::UseTree::Name(n) => {
- let full_path = format!("{}", n.ident);
- imports.insert(n.ident.clone(), full_path);
- },
- _ => unimplemented!(),
- }
+ Self::process_use_intern(imports, &u.tree, "", syn::punctuated::Punctuated::new());
+ }
+
+ fn insert_primitive(imports: &mut HashMap<syn::Ident, (String, syn::Path)>, id: &str) {
+ let ident = syn::Ident::new(id, Span::call_site());
+ let mut path = syn::punctuated::Punctuated::new();
+ path.push(syn::PathSegment { ident: ident.clone(), arguments: syn::PathArguments::None });
+ imports.insert(ident, (id.to_owned(), syn::Path { leading_colon: Some(syn::Token)), segments: path }));
}
pub fn new(module_path: &'mod_lifetime str, contents: &'crate_lft [syn::Item]) -> Self {
let mut imports = HashMap::new();
// Add primitives to the "imports" list:
- imports.insert(syn::Ident::new("bool", Span::call_site()), "bool".to_string());
- imports.insert(syn::Ident::new("u64", Span::call_site()), "u64".to_string());
- imports.insert(syn::Ident::new("u32", Span::call_site()), "u32".to_string());
- imports.insert(syn::Ident::new("u16", Span::call_site()), "u16".to_string());
- imports.insert(syn::Ident::new("u8", Span::call_site()), "u8".to_string());
- imports.insert(syn::Ident::new("usize", Span::call_site()), "usize".to_string());
- imports.insert(syn::Ident::new("str", Span::call_site()), "str".to_string());
- imports.insert(syn::Ident::new("String", Span::call_site()), "String".to_string());
+ Self::insert_primitive(&mut imports, "bool");
+ Self::insert_primitive(&mut imports, "u64");
+ Self::insert_primitive(&mut imports, "u32");
+ Self::insert_primitive(&mut imports, "u16");
+ Self::insert_primitive(&mut imports, "u8");
+ Self::insert_primitive(&mut imports, "usize");
+ Self::insert_primitive(&mut imports, "str");
+ Self::insert_primitive(&mut imports, "String");
// These are here to allow us to print native Rust types in trait fn impls even if we don't
// have C mappings:
- imports.insert(syn::Ident::new("Result", Span::call_site()), "Result".to_string());
- imports.insert(syn::Ident::new("Vec", Span::call_site()), "Vec".to_string());
- imports.insert(syn::Ident::new("Option", Span::call_site()), "Option".to_string());
+ Self::insert_primitive(&mut imports, "Result");
+ Self::insert_primitive(&mut imports, "Vec");
+ Self::insert_primitive(&mut imports, "Option");
let mut declared = HashMap::new();
}
pub fn maybe_resolve_ident(&self, id: &syn::Ident) -> Option<String> {
- if let Some(imp) = self.imports.get(id) {
+ if let Some((imp, _)) = self.imports.get(id) {
Some(imp.clone())
} else if self.declared.get(id).is_some() {
Some(self.module_path.to_string() + "::" + &format!("{}", id))
}
pub fn maybe_resolve_non_ignored_ident(&self, id: &syn::Ident) -> Option<String> {
- if let Some(imp) = self.imports.get(id) {
+ if let Some((imp, _)) = self.imports.get(id) {
Some(imp.clone())
} else if let Some(decl_type) = self.declared.get(id) {
match decl_type {
let remaining: String = seg_iter.map(|seg| {
format!("::{}", seg.ident)
}).collect();
- if let Some(imp) = self.imports.get(&first_seg.ident) {
+ if let Some((imp, _)) = self.imports.get(&first_seg.ident) {
if remaining != "" {
Some(imp.clone() + &remaining)
} else {
} else { None }
}
}
+
+ /// Map all the Paths in a Type into absolute paths given a set of imports (generated via process_use_intern)
+ pub fn resolve_imported_refs(&self, mut ty: syn::Type) -> syn::Type {
+ match &mut ty {
+ syn::Type::Path(p) => {
+ if let Some(ident) = p.path.get_ident() {
+ if let Some((_, newpath)) = self.imports.get(ident) {
+ p.path = newpath.clone();
+ }
+ } else { unimplemented!(); }
+ },
+ syn::Type::Reference(r) => {
+ r.elem = Box::new(self.resolve_imported_refs((*r.elem).clone()));
+ },
+ syn::Type::Slice(s) => {
+ s.elem = Box::new(self.resolve_imported_refs((*s.elem).clone()));
+ },
+ syn::Type::Tuple(t) => {
+ for e in t.elems.iter_mut() {
+ *e = self.resolve_imported_refs(e.clone());
+ }
+ },
+ _ => unimplemented!(),
+ }
+ ty
+ }
}
// templates_defined is walked to write the C++ header, so if we use the default hashing it get
projects / rust-lightning / blobdiff