41 lines
2.0 KiB
Rust
41 lines
2.0 KiB
Rust
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//@ edition: 2024
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//@ revisions: classic structural
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//@[classic] run-pass
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//! Tests for errors from binding with `ref x` under a by-ref default binding mode. These can't be
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//! in the same body as tests for other errors, since they're emitted during THIR construction.
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#![allow(incomplete_features)]
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#![cfg_attr(classic, feature(ref_pat_eat_one_layer_2024))]
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#![cfg_attr(structural, feature(ref_pat_eat_one_layer_2024_structural))]
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pub fn main() {
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let [&ref x] = &[&0];
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//[structural]~^ ERROR: this pattern relies on behavior which may change in edition 2024
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//[structural]~| cannot override to bind by-reference when that is the implicit default
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#[cfg(classic)] let _: &&u32 = x;
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let [&ref x] = &[&mut 0];
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//[structural]~^ ERROR: this pattern relies on behavior which may change in edition 2024
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//[structural]~| cannot override to bind by-reference when that is the implicit default
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#[cfg(classic)] let _: &&mut u32 = x;
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let [&ref x] = &mut [&0];
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//[structural]~^ ERROR: this pattern relies on behavior which may change in edition 2024
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//[structural]~| cannot override to bind by-reference when that is the implicit default
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#[cfg(classic)] let _: &&u32 = x;
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let [&ref x] = &mut [&mut 0];
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//[structural]~^ ERROR: this pattern relies on behavior which may change in edition 2024
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//[structural]~| cannot override to bind by-reference when that is the implicit default
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#[cfg(classic)] let _: &&mut u32 = x;
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let [&mut ref x] = &mut [&mut 0];
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//[structural]~^ ERROR: this pattern relies on behavior which may change in edition 2024
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//[structural]~| cannot override to bind by-reference when that is the implicit default
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#[cfg(classic)] let _: &&mut u32 = x;
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let [&mut ref mut x] = &mut [&mut 0];
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//[structural]~^ ERROR: this pattern relies on behavior which may change in edition 2024
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//[structural]~| cannot override to bind by-reference when that is the implicit default
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#[cfg(classic)] let _: &mut &mut u32 = x;
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}
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