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In order to expose edition dependent divergences in some tests in the test suite, add explicit `edition` annotations. Some of these tests might require additional work to *avoid* the divergences, as they might have been unintentional. These are not exhaustive changes, purely opportunistic while looking at something else.
82 lines
1.7 KiB
Rust
82 lines
1.7 KiB
Rust
//@revisions: edition2015 edition2021
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//@[edition2015] edition:2015
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//@[edition2021] edition:2021
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#![allow(bare_trait_objects)]
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struct Struct;
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trait Trait {}
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impl Trait for Struct {}
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impl Trait for u32 {}
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fn fuz() -> (usize, Trait) { (42, Struct) }
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//[edition2015]~^ ERROR E0277
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//[edition2015]~| ERROR E0277
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//[edition2015]~| ERROR E0308
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//[edition2021]~^^^^ ERROR expected a type, found a trait
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fn bar() -> (usize, dyn Trait) { (42, Struct) }
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//~^ ERROR E0277
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//~| ERROR E0277
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//~| ERROR E0308
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fn bap() -> Trait { Struct }
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//[edition2015]~^ ERROR E0746
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//[edition2021]~^^ ERROR expected a type, found a trait
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fn ban() -> dyn Trait { Struct }
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//~^ ERROR E0746
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fn bak() -> dyn Trait { unimplemented!() } //~ ERROR E0746
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// Suggest using `Box<dyn Trait>`
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fn bal() -> dyn Trait { //~ ERROR E0746
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if true {
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return Struct;
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}
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42
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}
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fn bax() -> dyn Trait { //~ ERROR E0746
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if true {
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Struct
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} else {
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42
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}
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}
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fn bam() -> Box<dyn Trait> {
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if true {
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return Struct; //~ ERROR mismatched types
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}
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42 //~ ERROR mismatched types
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}
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fn baq() -> Box<dyn Trait> {
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if true {
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return 0; //~ ERROR mismatched types
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}
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42 //~ ERROR mismatched types
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}
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fn baz() -> Box<dyn Trait> {
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if true {
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Struct //~ ERROR mismatched types
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} else {
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42 //~ ERROR mismatched types
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}
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}
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fn baw() -> Box<dyn Trait> {
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if true {
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0 //~ ERROR mismatched types
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} else {
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42 //~ ERROR mismatched types
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}
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}
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// Suggest using `impl Trait`
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fn bat() -> dyn Trait { //~ ERROR E0746
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if true {
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return 0;
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}
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42
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}
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fn bay() -> dyn Trait { //~ ERROR E0746
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if true {
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0
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} else {
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42
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}
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}
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fn main() {}
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