diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/test/ui/suggestions/if-then-neeing-semi.rs | 70 | ||||
| -rw-r--r-- | src/test/ui/suggestions/if-then-neeing-semi.stderr | 130 |
2 files changed, 200 insertions, 0 deletions
diff --git a/src/test/ui/suggestions/if-then-neeing-semi.rs b/src/test/ui/suggestions/if-then-neeing-semi.rs new file mode 100644 index 00000000000..b487f013d27 --- /dev/null +++ b/src/test/ui/suggestions/if-then-neeing-semi.rs @@ -0,0 +1,70 @@ +// edition:2018 + +fn dummy() -> i32 { + 42 +} + +fn extra_semicolon() { + let _ = if true { + //~^ NOTE `if` and `else` have incompatible types + dummy(); //~ NOTE expected because of this + //~^ HELP consider removing this semicolon + } else { + dummy() //~ ERROR `if` and `else` have incompatible types + //~^ NOTE expected `()`, found `i32` + }; +} + +async fn async_dummy() {} //~ NOTE checked the `Output` of this `async fn`, found opaque type +//~| NOTE while checking the return type of the `async fn` +//~| NOTE in this expansion of desugaring of `async` block or function +//~| NOTE checked the `Output` of this `async fn`, expected opaque type +//~| NOTE while checking the return type of the `async fn` +//~| NOTE in this expansion of desugaring of `async` block or function +async fn async_dummy2() {} //~ NOTE checked the `Output` of this `async fn`, found opaque type +//~| NOTE checked the `Output` of this `async fn`, found opaque type +//~| NOTE while checking the return type of the `async fn` +//~| NOTE in this expansion of desugaring of `async` block or function +//~| NOTE while checking the return type of the `async fn` +//~| NOTE in this expansion of desugaring of `async` block or function + +async fn async_extra_semicolon_same() { + let _ = if true { + //~^ NOTE `if` and `else` have incompatible types + async_dummy(); //~ NOTE expected because of this + //~^ HELP consider removing this semicolon + } else { + async_dummy() //~ ERROR `if` and `else` have incompatible types + //~^ NOTE expected `()`, found opaque type + //~| NOTE expected unit type `()` + //~| HELP consider `await`ing on the `Future` + }; +} + +async fn async_extra_semicolon_different() { + let _ = if true { + //~^ NOTE `if` and `else` have incompatible types + async_dummy(); //~ NOTE expected because of this + //~^ HELP consider removing this semicolon + } else { + async_dummy2() //~ ERROR `if` and `else` have incompatible types + //~^ NOTE expected `()`, found opaque type + //~| NOTE expected unit type `()` + //~| HELP consider `await`ing on the `Future` + }; +} + +async fn async_different_futures() { + let _ = if true { + //~^ NOTE `if` and `else` have incompatible types + async_dummy() //~ NOTE expected because of this + //~| HELP consider `await`ing on both `Future`s + } else { + async_dummy2() //~ ERROR `if` and `else` have incompatible types + //~^ NOTE expected opaque type, found a different opaque type + //~| NOTE expected opaque type `impl Future<Output = ()>` + //~| NOTE distinct uses of `impl Trait` result in different opaque types + }; +} + +fn main() {} diff --git a/src/test/ui/suggestions/if-then-neeing-semi.stderr b/src/test/ui/suggestions/if-then-neeing-semi.stderr new file mode 100644 index 00000000000..d7c5818abbd --- /dev/null +++ b/src/test/ui/suggestions/if-then-neeing-semi.stderr @@ -0,0 +1,130 @@ +error[E0308]: `if` and `else` have incompatible types + --> $DIR/if-then-neeing-semi.rs:37:9 + | +LL | let _ = if true { + | _____________- +LL | | +LL | | async_dummy(); + | | -------------- expected because of this +LL | | +LL | | } else { +LL | | async_dummy() + | | ^^^^^^^^^^^^^ expected `()`, found opaque type +... | +LL | | +LL | | }; + | |_____- `if` and `else` have incompatible types + | +note: while checking the return type of the `async fn` + --> $DIR/if-then-neeing-semi.rs:18:24 + | +LL | async fn async_dummy() {} + | ^ checked the `Output` of this `async fn`, found opaque type + = note: expected unit type `()` + found opaque type `impl Future<Output = ()>` +help: consider `await`ing on the `Future` + | +LL | async_dummy().await + | ++++++ +help: consider removing this semicolon + | +LL - async_dummy(); +LL + async_dummy() + | + +error[E0308]: `if` and `else` have incompatible types + --> $DIR/if-then-neeing-semi.rs:50:9 + | +LL | let _ = if true { + | _____________- +LL | | +LL | | async_dummy(); + | | -------------- expected because of this +LL | | +LL | | } else { +LL | | async_dummy2() + | | ^^^^^^^^^^^^^^ expected `()`, found opaque type +... | +LL | | +LL | | }; + | |_____- `if` and `else` have incompatible types + | +note: while checking the return type of the `async fn` + --> $DIR/if-then-neeing-semi.rs:24:25 + | +LL | async fn async_dummy2() {} + | ^ checked the `Output` of this `async fn`, found opaque type + = note: expected unit type `()` + found opaque type `impl Future<Output = ()>` +help: consider `await`ing on the `Future` + | +LL | async_dummy2().await + | ++++++ +help: consider removing this semicolon and boxing the expressions + | +LL ~ Box::new(async_dummy()) +LL | +LL | } else { +LL ~ Box::new(async_dummy2()) + | + +error[E0308]: `if` and `else` have incompatible types + --> $DIR/if-then-neeing-semi.rs:63:9 + | +LL | let _ = if true { + | _____________- +LL | | +LL | | async_dummy() + | | ------------- expected because of this +LL | | +LL | | } else { +LL | | async_dummy2() + | | ^^^^^^^^^^^^^^ expected opaque type, found a different opaque type +... | +LL | | +LL | | }; + | |_____- `if` and `else` have incompatible types + | +note: while checking the return type of the `async fn` + --> $DIR/if-then-neeing-semi.rs:18:24 + | +LL | async fn async_dummy() {} + | ^ checked the `Output` of this `async fn`, expected opaque type +note: while checking the return type of the `async fn` + --> $DIR/if-then-neeing-semi.rs:24:25 + | +LL | async fn async_dummy2() {} + | ^ checked the `Output` of this `async fn`, found opaque type + = note: expected opaque type `impl Future<Output = ()>` (opaque type at <$DIR/if-then-neeing-semi.rs:18:24>) + found opaque type `impl Future<Output = ()>` (opaque type at <$DIR/if-then-neeing-semi.rs:24:25>) + = note: distinct uses of `impl Trait` result in different opaque types +help: consider `await`ing on both `Future`s + | +LL ~ async_dummy().await +LL | +LL | } else { +LL ~ async_dummy2().await + | + +error[E0308]: `if` and `else` have incompatible types + --> $DIR/if-then-neeing-semi.rs:13:9 + | +LL | let _ = if true { + | _____________- +LL | | +LL | | dummy(); + | | -------- + | | | | + | | | help: consider removing this semicolon + | | expected because of this +LL | | +LL | | } else { +LL | | dummy() + | | ^^^^^^^ expected `()`, found `i32` +LL | | +LL | | }; + | |_____- `if` and `else` have incompatible types + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0308`. |