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``` error[E0599]: no method named `map` found for struct `Vec<bool>` in the current scope --> $DIR/vec-on-unimplemented.rs:3:23 | LL | vec![true, false].map(|v| !v).collect::<Vec<_>>(); | ^^^ `Vec<bool>` is not an iterator | help: call `.into_iter()` first | LL | vec![true, false].into_iter().map(|v| !v).collect::<Vec<_>>(); | ++++++++++++ ``` We used to provide some help through `rustc_on_unimplemented` on non-`impl Trait` and non-type-params, but this lets us get rid of some otherwise unnecessary conditions in the annotation on `Iterator`.
23 lines
688 B
Rust
23 lines
688 B
Rust
//@ aux-build:issue-104884.rs
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use std::collections::BinaryHeap;
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#[macro_use]
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extern crate issue_104884;
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#[derive(PartialEq, Eq, PartialOrd, Ord)]
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struct PriorityQueueEntry<T> {
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value: T,
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}
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#[derive(PartialOrd, AddImpl)]
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//~^ ERROR can't compare `PriorityQueue<T>` with `PriorityQueue<T>`
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//~| ERROR the trait bound `PriorityQueue<T>: Eq` is not satisfied
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//~| ERROR can't compare `T` with `T`
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//~| ERROR no method named `cmp` found for struct `BinaryHeap<PriorityQueueEntry<T>>`
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//~| ERROR no field `height` on type `&PriorityQueue<T>`
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struct PriorityQueue<T>(BinaryHeap<PriorityQueueEntry<T>>);
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//~^ ERROR can't compare `BinaryHeap<PriorityQueueEntry<T>>` with `_`
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fn main() {}
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