OpenE2K/rust
2
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

Simplify binding.module().

Browse Source
This commit is contained in:
Jeffrey Seyfried 2016-11-27 00:23:54 +00:00
parent 7bccc9d769
commit 8fe525dd1c
1 changed files with 8 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/librustc_resolve/lib.rs
View File

@ -908,13 +908,11 @@ struct AmbiguityError<'a> {
}
impl<'a> NameBinding<'a> {
fn module(&self) -> Result<Module<'a>, bool /* true if an error has already been reported */> {
fn module(&self) -> Option<Module<'a>> {
match self.kind {
NameBindingKind::Module(module) => Ok(module),
NameBindingKind::Module(module) => Some(module),
NameBindingKind::Import { binding, .. } => binding.module(),
NameBindingKind::Def(Def::Err) => Err(true),
NameBindingKind::Def(_) => Err(false),
NameBindingKind::Ambiguity { .. } => Err(false),
_ => None,
}
}
@ -1332,7 +1330,7 @@ impl<'a> Resolver<'a> {
fn record_use(&mut self, name: Name, ns: Namespace, binding: &'a NameBinding<'a>, span: Span)
-> bool /* true if an error was reported */ {
// track extern crates for unused_extern_crate lint
if let Some(DefId { krate, .. }) = binding.module().ok().and_then(ModuleS::def_id) {
if let Some(DefId { krate, .. }) = binding.module().and_then(ModuleS::def_id) {
self.used_crates.insert(krate);
}
@ -2372,7 +2370,7 @@ impl<'a> Resolver<'a> {
match binding {
Ok(binding) => {
if let Ok(next_module) = binding.module() {
if let Some(next_module) = binding.module() {
module = Some(next_module);
} else if binding.def() == Def::Err {
return PathResult::NonModule(err_path_resolution());
@ -2980,7 +2978,7 @@ impl<'a> Resolver<'a> {
}
// collect submodules to explore
if let Ok(module) = name_binding.module() {
if let Some(module) = name_binding.module() {
// form the path
let mut path_segments = path_segments.clone();
path_segments.push(PathSegment {
@ -3141,8 +3139,8 @@ impl<'a> Resolver<'a> {
(ValueNS, _) => "a value",
(MacroNS, _) => "a macro",
(TypeNS, _) if old_binding.is_extern_crate() => "an extern crate",
(TypeNS, Ok(module)) if module.is_normal() => "a module",
(TypeNS, Ok(module)) if module.is_trait() => "a trait",
(TypeNS, Some(module)) if module.is_normal() => "a module",
(TypeNS, Some(module)) if module.is_trait() => "a trait",
(TypeNS, _) => "a type",
};
format!("{} named `{}` has already been {} in this {}",