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3138c7a8c4
@ -1624,7 +1624,8 @@ impl<'a, 'tcx> Visitor<'tcx> for VarVisitor<'a, 'tcx> {
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if_chain! {
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// a range index op
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if let ExprMethodCall(ref meth, _, ref args) = expr.node;
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if meth.name == "index" || meth.name == "index_mut";
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if (meth.name == "index" && match_trait_method(self.cx, expr, &paths::INDEX))
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|| (meth.name == "index_mut" && match_trait_method(self.cx, expr, &paths::INDEX_MUT));
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if !self.check(&args[1], &args[0], expr);
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then { return }
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}
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@ -33,6 +33,8 @@ pub const HASH: [&str; 2] = ["hash", "Hash"];
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pub const HASHMAP: [&str; 5] = ["std", "collections", "hash", "map", "HashMap"];
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pub const HASHMAP_ENTRY: [&str; 5] = ["std", "collections", "hash", "map", "Entry"];
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pub const HASHSET: [&str; 5] = ["std", "collections", "hash", "set", "HashSet"];
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pub const INDEX: [&str; 3] = ["core", "ops", "Index"];
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pub const INDEX_MUT: [&str; 3] = ["core", "ops", "IndexMut"];
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pub const INIT: [&str; 4] = ["core", "intrinsics", "", "init"];
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pub const INTO: [&str; 3] = ["core", "convert", "Into"];
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pub const INTO_ITERATOR: [&str; 4] = ["core", "iter", "traits", "IntoIterator"];
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@ -556,3 +556,18 @@ pub fn manual_copy_same_destination(dst: &mut [i32], d: usize, s: usize) {
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dst[d + i] = dst[s + i];
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}
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}
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mod issue_2496 {
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pub trait Handle {
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fn new_for_index(index: usize) -> Self;
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fn index(&self) -> usize;
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}
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pub fn test<H: Handle>() -> H {
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for x in 0..5 {
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let next_handle = H::new_for_index(x);
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println!("{}", next_handle.index());
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}
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unimplemented!()
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}
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}
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