20 lines
773 B
Rust
20 lines
773 B
Rust
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// Tests that the compiler suggests an `into_iter` call when an `Iterator` method
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// is called on something that implements `IntoIterator`
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fn main() {
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let items = items();
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let other_items = items.map(|i| i + 1);
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//~^ ERROR no method named `map` found for opaque type `impl IntoIterator<Item = i32>` in the current scope
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let vec: Vec<i32> = items.collect();
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//~^ ERROR no method named `collect` found for opaque type `impl IntoIterator<Item = i32>` in the current scope
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}
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fn items() -> impl IntoIterator<Item = i32> {
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vec![1, 2, 3]
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}
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fn process(items: impl IntoIterator<Item = String>) -> Vec<String> {
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items.collect()
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//~^ ERROR no method named `collect` found for type parameter `impl IntoIterator<Item = String>` in the current scope
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}
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