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extract helper fn

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This commit is contained in:
Douglas Campos 2018-07-05 13:36:17 +00:00
parent af727dfd3f
commit b4aa1f2f90
1 changed files with 20 additions and 9 deletions
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29
src/librustc_resolve/lib.rs
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@ -4232,16 +4232,10 @@ impl<'a, 'crateloader: 'a> Resolver<'a, 'crateloader> {
}
}
/// When name resolution fails, this method can be used to look up candidate
/// entities with the expected name. It allows filtering them using the
/// supplied predicate (which should be used to only accept the types of
/// definitions expected e.g. traits). The lookup spans across all crates.
///
/// NOTE: The method does not look into imports, but this is not a problem,
/// since we report the definitions (thus, the de-aliased imports).
fn lookup_import_candidates<FilterFn>(&mut self,
fn lookup_import_candidates_from_module<FilterFn>(&mut self,
lookup_name: Name,
namespace: Namespace,
start_module: &'a ModuleData<'a>,
filter_fn: FilterFn)
-> Vec<ImportSuggestion>
where FilterFn: Fn(Def) -> bool
@ -4249,7 +4243,7 @@ impl<'a, 'crateloader: 'a> Resolver<'a, 'crateloader> {
let mut candidates = Vec::new();
let mut worklist = Vec::new();
let mut seen_modules = FxHashSet();
worklist.push((self.graph_root, Vec::new(), false));
worklist.push((start_module, Vec::new(), false));
while let Some((in_module,
path_segments,
@ -4318,6 +4312,23 @@ impl<'a, 'crateloader: 'a> Resolver<'a, 'crateloader> {
candidates
}
/// When name resolution fails, this method can be used to look up candidate
/// entities with the expected name. It allows filtering them using the
/// supplied predicate (which should be used to only accept the types of
/// definitions expected e.g. traits). The lookup spans across all crates.
///
/// NOTE: The method does not look into imports, but this is not a problem,
/// since we report the definitions (thus, the de-aliased imports).
fn lookup_import_candidates<FilterFn>(&mut self,
lookup_name: Name,
namespace: Namespace,
filter_fn: FilterFn)
-> Vec<ImportSuggestion>
where FilterFn: Fn(Def) -> bool
{
self.lookup_import_candidates_from_module(lookup_name, namespace, self.graph_root, filter_fn)
}
fn find_module(&mut self,
module_def: Def)
-> Option<(Module<'a>, ImportSuggestion)>