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https://github.com/rust-lang/rust
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Don't suggest importing items with hygienic names
This will potentially hide a few correct suggestions, but importing these items from another module is not generally possible.
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@ -831,9 +831,11 @@ fn lookup_import_candidates_from_module<FilterFn>(
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// collect results based on the filter function
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// avoid suggesting anything from the same module in which we are resolving
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// avoid suggesting anything with a hygienic name
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if ident.name == lookup_ident.name
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&& ns == namespace
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&& !ptr::eq(in_module, parent_scope.module)
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&& !ident.span.normalize_to_macros_2_0().from_expansion()
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{
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let res = name_binding.res();
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if filter_fn(res) {
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@ -709,7 +709,7 @@ pub fn normalize_to_macros_2_0_and_adjust(&mut self, expn_id: ExpnId) -> Option<
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/// pub fn f() {} // `f`'s `SyntaxContext` has a single `ExpnId` from `m`.
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/// pub fn $i() {} // `$i`'s `SyntaxContext` is empty.
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/// }
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/// n(f);
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/// n!(f);
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/// macro n($j:ident) {
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/// use foo::*;
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/// f(); // `f`'s `SyntaxContext` has a mark from `m` and a mark from `n`
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