diff options
Diffstat (limited to 'tests/ui/rfcs')
60 files changed, 2489 insertions, 1797 deletions
diff --git a/tests/ui/rfcs/rfc-2008-non-exhaustive/enum.stderr b/tests/ui/rfcs/rfc-2008-non-exhaustive/enum.stderr index 872cb9b8b..4e7f3098a 100644 --- a/tests/ui/rfcs/rfc-2008-non-exhaustive/enum.stderr +++ b/tests/ui/rfcs/rfc-2008-non-exhaustive/enum.stderr @@ -28,7 +28,8 @@ note: `NonExhaustiveEnum` defined here | LL | pub enum NonExhaustiveEnum { | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - = note: the matched value is of type `NonExhaustiveEnum`, which is marked as non-exhaustive + = note: the matched value is of type `NonExhaustiveEnum` + = note: `NonExhaustiveEnum` is marked as non-exhaustive, so a wildcard `_` is necessary to match exhaustively help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | LL ~ NonExhaustiveEnum::Struct { .. } => "third", @@ -46,7 +47,7 @@ note: `NonExhaustiveEnum` defined here | LL | pub enum NonExhaustiveEnum { | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - = note: the matched value is of type `NonExhaustiveEnum`, which is marked as non-exhaustive + = note: the matched value is of type `NonExhaustiveEnum` help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown | LL ~ match enum_unit { diff --git a/tests/ui/rfcs/rfc-2091-track-caller/error-with-start.rs b/tests/ui/rfcs/rfc-2091-track-caller/error-with-start.rs index 0cab47170..f0e111b57 100644 --- a/tests/ui/rfcs/rfc-2091-track-caller/error-with-start.rs +++ b/tests/ui/rfcs/rfc-2091-track-caller/error-with-start.rs @@ -1,7 +1,7 @@ #![feature(start)] #[start] -#[track_caller] //~ ERROR `start` is not allowed to be `#[track_caller]` +#[track_caller] //~ ERROR `#[start]` function is not allowed to be `#[track_caller]` fn start(_argc: isize, _argv: *const *const u8) -> isize { panic!("{}: oh no", std::panic::Location::caller()); } diff --git a/tests/ui/rfcs/rfc-2091-track-caller/error-with-start.stderr b/tests/ui/rfcs/rfc-2091-track-caller/error-with-start.stderr index 454c98ff9..b6ef62152 100644 --- a/tests/ui/rfcs/rfc-2091-track-caller/error-with-start.stderr +++ b/tests/ui/rfcs/rfc-2091-track-caller/error-with-start.stderr @@ -1,10 +1,10 @@ -error: `start` is not allowed to be `#[track_caller]` +error: `#[start]` function is not allowed to be `#[track_caller]` --> $DIR/error-with-start.rs:4:1 | LL | #[track_caller] | ^^^^^^^^^^^^^^^ LL | fn start(_argc: isize, _argv: *const *const u8) -> isize { - | -------------------------------------------------------- `start` is not allowed to be `#[track_caller]` + | -------------------------------------------------------- `#[start]` function is not allowed to be `#[track_caller]` error: aborting due to previous error diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/const-expr.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/const-expr.rs new file mode 100644 index 000000000..5c42c0d8b --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/const-expr.rs @@ -0,0 +1,26 @@ +// Ensure if let guards can be used in constant expressions. +// build-pass + +#![feature(if_let_guard)] + +const fn match_if_let(x: Option<i32>, y: Option<i32>) -> i32 { + match x { + None if let Some(a @ 5) = y => a, + Some(z) if let (Some(_), 12) = (y, z) => 2, + _ => 3, + } +} + +const ASSERTS: usize = { + assert!(match_if_let(None, Some(5)) == 5); + assert!(match_if_let(Some(12), Some(3)) == 2); + assert!(match_if_let(None, Some(4)) == 3); + assert!(match_if_let(Some(11), Some(3)) == 3); + assert!(match_if_let(Some(12), None) == 3); + assert!(match_if_let(None, None) == 3); + 0 +}; + +fn main() { + let _: [(); ASSERTS]; +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/exhaustive.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/exhaustive.rs new file mode 100644 index 000000000..b4eb54139 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/exhaustive.rs @@ -0,0 +1,18 @@ +#![feature(if_let_guard)] +#![allow(irrefutable_let_patterns)] + +fn match_option(x: Option<u32>) { + match x { + //~^ ERROR non-exhaustive patterns: `None` not covered + Some(_) => {} + None if let y = x => {} + } +} + +fn main() { + let x = (); + match x { + //~^ ERROR non-exhaustive patterns: `()` not covered + y if let z = y => {} + } +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/exhaustive.stderr b/tests/ui/rfcs/rfc-2294-if-let-guard/exhaustive.stderr new file mode 100644 index 000000000..ddd08854f --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/exhaustive.stderr @@ -0,0 +1,35 @@ +error[E0004]: non-exhaustive patterns: `None` not covered + --> $DIR/exhaustive.rs:5:11 + | +LL | match x { + | ^ pattern `None` not covered + | +note: `Option<u32>` defined here + --> $SRC_DIR/core/src/option.rs:LL:COL + ::: $SRC_DIR/core/src/option.rs:LL:COL + | + = note: not covered + = note: the matched value is of type `Option<u32>` +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL ~ None if let y = x => {}, +LL + None => todo!() + | + +error[E0004]: non-exhaustive patterns: `()` not covered + --> $DIR/exhaustive.rs:14:11 + | +LL | match x { + | ^ pattern `()` not covered + | + = note: the matched value is of type `()` + = note: match arms with guards don't count towards exhaustivity +help: ensure that all possible cases are being handled by adding a match arm with a wildcard pattern or an explicit pattern as shown + | +LL ~ y if let z = y => {}, +LL + () => todo!() + | + +error: aborting due to 2 previous errors + +For more information about this error, try `rustc --explain E0004`. diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs index 3beb20f0a..b8c0eb3e6 100644 --- a/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.rs @@ -8,14 +8,10 @@ fn _if_let_guard() { //~^ ERROR `if let` guards are experimental () if (let 0 = 1) => {} - //~^ ERROR `let` expressions in this position are unstable - //~| ERROR expected expression, found `let` statement - //~| ERROR `let` expressions are not supported here + //~^ ERROR expected expression, found `let` statement () if (((let 0 = 1))) => {} - //~^ ERROR `let` expressions in this position are unstable - //~| ERROR expected expression, found `let` statement - //~| ERROR `let` expressions are not supported here + //~^ ERROR expected expression, found `let` statement () if true && let 0 = 1 => {} //~^ ERROR `if let` guards are experimental @@ -26,36 +22,22 @@ fn _if_let_guard() { //~| ERROR `let` expressions in this position are unstable () if (let 0 = 1) && true => {} - //~^ ERROR `let` expressions in this position are unstable - //~| ERROR expected expression, found `let` statement - //~| ERROR `let` expressions are not supported here + //~^ ERROR expected expression, found `let` statement () if true && (let 0 = 1) => {} - //~^ ERROR `let` expressions in this position are unstable - //~| ERROR expected expression, found `let` statement - //~| ERROR `let` expressions are not supported here + //~^ ERROR expected expression, found `let` statement () if (let 0 = 1) && (let 0 = 1) => {} - //~^ ERROR `let` expressions in this position are unstable - //~| ERROR `let` expressions in this position are unstable + //~^ ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement - //~| ERROR expected expression, found `let` statement - //~| ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} //~^ ERROR `if let` guards are experimental //~| ERROR `let` expressions in this position are unstable //~| ERROR `let` expressions in this position are unstable - //~| ERROR `let` expressions in this position are unstable - //~| ERROR `let` expressions in this position are unstable - //~| ERROR `let` expressions in this position are unstable //~| ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement - //~| ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here () if let Range { start: _, end: _ } = (true..true) && false => {} @@ -76,13 +58,9 @@ fn _macros() { } } use_expr!((let 0 = 1 && 0 == 0)); - //~^ ERROR `let` expressions in this position are unstable - //~| ERROR expected expression, found `let` statement - //~| ERROR `let` expressions are not supported here + //~^ ERROR expected expression, found `let` statement use_expr!((let 0 = 1)); - //~^ ERROR `let` expressions in this position are unstable - //~| ERROR expected expression, found `let` statement - //~| ERROR `let` expressions are not supported here + //~^ ERROR expected expression, found `let` statement match () { #[cfg(FALSE)] () if let 0 = 1 => {} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.stderr b/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.stderr index dc182ce46..62534b555 100644 --- a/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.stderr +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/feature-gate.stderr @@ -2,87 +2,6 @@ error: expected expression, found `let` statement --> $DIR/feature-gate.rs:10:16 | LL | () if (let 0 = 1) => {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:15:18 - | -LL | () if (((let 0 = 1))) => {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:28:16 - | -LL | () if (let 0 = 1) && true => {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:33:24 - | -LL | () if true && (let 0 = 1) => {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:38:16 - | -LL | () if (let 0 = 1) && (let 0 = 1) => {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:38:31 - | -LL | () if (let 0 = 1) && (let 0 = 1) => {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:46:42 - | -LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:46:55 - | -LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:46:68 - | -LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:78:16 - | -LL | use_expr!((let 0 = 1 && 0 == 0)); - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:82:16 - | -LL | use_expr!((let 0 = 1)); - | ^^^ - -error: no rules expected the token `let` - --> $DIR/feature-gate.rs:92:15 - | -LL | macro_rules! use_expr { - | --------------------- when calling this macro -... -LL | use_expr!(let 0 = 1); - | ^^^ no rules expected this token in macro call - | -note: while trying to match meta-variable `$e:expr` - --> $DIR/feature-gate.rs:71:10 - | -LL | ($e:expr) => { - | ^^^^^^^ - -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:10:16 - | -LL | () if (let 0 = 1) => {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions @@ -92,135 +11,140 @@ note: `let`s wrapped in parentheses are not supported in a context with let chai LL | () if (let 0 = 1) => {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:15:18 +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:13:18 | LL | () if (((let 0 = 1))) => {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/feature-gate.rs:15:18 + --> $DIR/feature-gate.rs:13:18 | LL | () if (((let 0 = 1))) => {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:28:16 +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:24:16 | LL | () if (let 0 = 1) && true => {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/feature-gate.rs:28:16 + --> $DIR/feature-gate.rs:24:16 | LL | () if (let 0 = 1) && true => {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:33:24 +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:27:24 | LL | () if true && (let 0 = 1) => {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/feature-gate.rs:33:24 + --> $DIR/feature-gate.rs:27:24 | LL | () if true && (let 0 = 1) => {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:38:16 +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:30:16 | LL | () if (let 0 = 1) && (let 0 = 1) => {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/feature-gate.rs:38:16 + --> $DIR/feature-gate.rs:30:16 | LL | () if (let 0 = 1) && (let 0 = 1) => {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:38:31 +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:30:31 | LL | () if (let 0 = 1) && (let 0 = 1) => {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/feature-gate.rs:38:31 + --> $DIR/feature-gate.rs:30:31 | LL | () if (let 0 = 1) && (let 0 = 1) => {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:46:42 +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:34:42 | LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/feature-gate.rs:46:42 + --> $DIR/feature-gate.rs:34:42 | LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:46:55 +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:34:55 | LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/feature-gate.rs:46:42 + --> $DIR/feature-gate.rs:34:42 | LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:46:68 +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:34:68 | LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/feature-gate.rs:46:42 + --> $DIR/feature-gate.rs:34:42 | LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:78:16 +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:60:16 | LL | use_expr!((let 0 = 1 && 0 == 0)); - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/feature-gate.rs:78:16 - | -LL | use_expr!((let 0 = 1 && 0 == 0)); - | ^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/feature-gate.rs:82:16 +error: expected expression, found `let` statement + --> $DIR/feature-gate.rs:62:16 | LL | use_expr!((let 0 = 1)); - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/feature-gate.rs:82:16 + +error: no rules expected the token `let` + --> $DIR/feature-gate.rs:70:15 | -LL | use_expr!((let 0 = 1)); - | ^^^^^^^^^ +LL | macro_rules! use_expr { + | --------------------- when calling this macro +... +LL | use_expr!(let 0 = 1); + | ^^^ no rules expected this token in macro call + | +note: while trying to match meta-variable `$e:expr` + --> $DIR/feature-gate.rs:53:10 + | +LL | ($e:expr) => { + | ^^^^^^^ error[E0658]: `if let` guards are experimental --> $DIR/feature-gate.rs:7:12 @@ -233,7 +157,7 @@ LL | () if let 0 = 1 => {} = help: you can write `if matches!(<expr>, <pattern>)` instead of `if let <pattern> = <expr>` error[E0658]: `if let` guards are experimental - --> $DIR/feature-gate.rs:20:12 + --> $DIR/feature-gate.rs:16:12 | LL | () if true && let 0 = 1 => {} | ^^^^^^^^^^^^^^^^^^^^ @@ -243,7 +167,7 @@ LL | () if true && let 0 = 1 => {} = help: you can write `if matches!(<expr>, <pattern>)` instead of `if let <pattern> = <expr>` error[E0658]: `if let` guards are experimental - --> $DIR/feature-gate.rs:24:12 + --> $DIR/feature-gate.rs:20:12 | LL | () if let 0 = 1 && true => {} | ^^^^^^^^^^^^^^^^^^^^ @@ -253,7 +177,7 @@ LL | () if let 0 = 1 && true => {} = help: you can write `if matches!(<expr>, <pattern>)` instead of `if let <pattern> = <expr>` error[E0658]: `if let` guards are experimental - --> $DIR/feature-gate.rs:46:12 + --> $DIR/feature-gate.rs:34:12 | LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -263,7 +187,7 @@ LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = = help: you can write `if matches!(<expr>, <pattern>)` instead of `if let <pattern> = <expr>` error[E0658]: `if let` guards are experimental - --> $DIR/feature-gate.rs:61:12 + --> $DIR/feature-gate.rs:43:12 | LL | () if let Range { start: _, end: _ } = (true..true) && false => {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -273,7 +197,7 @@ LL | () if let Range { start: _, end: _ } = (true..true) && false => {} = help: you can write `if matches!(<expr>, <pattern>)` instead of `if let <pattern> = <expr>` error[E0658]: `if let` guards are experimental - --> $DIR/feature-gate.rs:88:12 + --> $DIR/feature-gate.rs:66:12 | LL | () if let 0 = 1 => {} | ^^^^^^^^^^^^ @@ -283,25 +207,7 @@ LL | () if let 0 = 1 => {} = help: you can write `if matches!(<expr>, <pattern>)` instead of `if let <pattern> = <expr>` error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:10:16 - | -LL | () if (let 0 = 1) => {} - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:15:18 - | -LL | () if (((let 0 = 1))) => {} - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:20:23 + --> $DIR/feature-gate.rs:16:23 | LL | () if true && let 0 = 1 => {} | ^^^^^^^^^ @@ -310,7 +216,7 @@ LL | () if true && let 0 = 1 => {} = help: add `#![feature(let_chains)]` to the crate attributes to enable error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:24:15 + --> $DIR/feature-gate.rs:20:15 | LL | () if let 0 = 1 && true => {} | ^^^^^^^^^ @@ -319,43 +225,7 @@ LL | () if let 0 = 1 && true => {} = help: add `#![feature(let_chains)]` to the crate attributes to enable error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:28:16 - | -LL | () if (let 0 = 1) && true => {} - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:33:24 - | -LL | () if true && (let 0 = 1) => {} - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:38:16 - | -LL | () if (let 0 = 1) && (let 0 = 1) => {} - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:38:31 - | -LL | () if (let 0 = 1) && (let 0 = 1) => {} - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:46:15 + --> $DIR/feature-gate.rs:34:15 | LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} | ^^^^^^^^^ @@ -364,7 +234,7 @@ LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = = help: add `#![feature(let_chains)]` to the crate attributes to enable error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:46:28 + --> $DIR/feature-gate.rs:34:28 | LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} | ^^^^^^^^^ @@ -373,34 +243,7 @@ LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = = help: add `#![feature(let_chains)]` to the crate attributes to enable error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:46:42 - | -LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:46:55 - | -LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:46:68 - | -LL | () if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) => {} - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:61:15 + --> $DIR/feature-gate.rs:43:15 | LL | () if let Range { start: _, end: _ } = (true..true) && false => {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ @@ -408,24 +251,6 @@ LL | () if let Range { start: _, end: _ } = (true..true) && false => {} = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information = help: add `#![feature(let_chains)]` to the crate attributes to enable -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:78:16 - | -LL | use_expr!((let 0 = 1 && 0 == 0)); - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:82:16 - | -LL | use_expr!((let 0 = 1)); - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error: aborting due to 45 previous errors +error: aborting due to 23 previous errors For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/guard-lifetime-1.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-lifetime-1.rs new file mode 100644 index 000000000..792225e65 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-lifetime-1.rs @@ -0,0 +1,15 @@ +// References to by-move bindings in an if-let guard *cannot* be used after the guard. + +#![feature(if_let_guard)] + +fn main() { + let x: Option<Option<String>> = Some(Some(String::new())); + match x { + Some(mut y) if let Some(ref z) = y => { + //~^ ERROR: cannot move out of `x.0` because it is borrowed + let _z: &String = z; + let _y: Option<String> = y; + } + _ => {} + } +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/guard-lifetime-1.stderr b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-lifetime-1.stderr new file mode 100644 index 000000000..b8e1bb324 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-lifetime-1.stderr @@ -0,0 +1,15 @@ +error[E0505]: cannot move out of `x.0` because it is borrowed + --> $DIR/guard-lifetime-1.rs:8:14 + | +LL | Some(mut y) if let Some(ref z) = y => { + | ^^^^^ + | | + | move out of `x.0` occurs here + | borrow of `x.0` occurs here +LL | +LL | let _z: &String = z; + | - borrow later used here + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0505`. diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/guard-lifetime-2.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-lifetime-2.rs new file mode 100644 index 000000000..aa2154e3e --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-lifetime-2.rs @@ -0,0 +1,16 @@ +// References to by-mutable-ref bindings in an if-let guard *can* be used after the guard. + +// check-pass + +#![feature(if_let_guard)] + +fn main() { + let mut x: Option<Option<String>> = Some(Some(String::new())); + match x { + Some(ref mut y) if let Some(ref z) = *y => { + let _z: &String = z; + let _y: &mut Option<String> = y; + } + _ => {} + } +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-1.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-1.rs new file mode 100644 index 000000000..9353c9d92 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-1.rs @@ -0,0 +1,14 @@ +// Check mutable bindings cannot be mutated by an if-let guard. + +#![feature(if_let_guard)] + +fn main() { + let x: Option<Option<i32>> = Some(Some(6)); + match x { + Some(mut y) if let Some(ref mut z) = y => { + //~^ ERROR cannot borrow `y.0` as mutable, as it is immutable for the pattern guard + let _: &mut i32 = z; + } + _ => {} + } +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-1.stderr b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-1.stderr new file mode 100644 index 000000000..009d15338 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-1.stderr @@ -0,0 +1,11 @@ +error[E0596]: cannot borrow `y.0` as mutable, as it is immutable for the pattern guard + --> $DIR/guard-mutability-1.rs:8:33 + | +LL | Some(mut y) if let Some(ref mut z) = y => { + | ^^^^^^^^^ cannot borrow as mutable + | + = note: variables bound in patterns are immutable until the end of the pattern guard + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0596`. diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.rs new file mode 100644 index 000000000..4efa02f57 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.rs @@ -0,0 +1,14 @@ +// Check mutable reference bindings cannot be mutated by an if-let guard. + +#![feature(if_let_guard)] + +fn main() { + let mut x: Option<Option<i32>> = Some(Some(6)); + match x { + Some(ref mut y) if let Some(ref mut z) = *y => { + //~^ ERROR cannot borrow `y.0` as mutable, as it is immutable for the pattern guard + let _: &mut i32 = z; + } + _ => {} + } +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.stderr b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.stderr new file mode 100644 index 000000000..07e7c6a2c --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/guard-mutability-2.stderr @@ -0,0 +1,11 @@ +error[E0596]: cannot borrow `y.0` as mutable, as it is immutable for the pattern guard + --> $DIR/guard-mutability-2.rs:8:37 + | +LL | Some(ref mut y) if let Some(ref mut z) = *y => { + | ^^^^^^^^^ cannot borrow as mutable + | + = note: variables bound in patterns are immutable until the end of the pattern guard + +error: aborting due to previous error + +For more information about this error, try `rustc --explain E0596`. diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/macro-expanded.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/macro-expanded.rs new file mode 100644 index 000000000..423a2cd53 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/macro-expanded.rs @@ -0,0 +1,16 @@ +// Expression macros can't expand to a let match guard. + +#![feature(if_let_guard)] +#![feature(let_chains)] + +macro_rules! m { + ($e:expr) => { let Some(x) = $e } + //~^ ERROR expected expression, found `let` statement +} + +fn main() { + match () { + () if m!(Some(5)) => {} + _ => {} + } +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/macro-expanded.stderr b/tests/ui/rfcs/rfc-2294-if-let-guard/macro-expanded.stderr new file mode 100644 index 000000000..00c1c303d --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/macro-expanded.stderr @@ -0,0 +1,14 @@ +error: expected expression, found `let` statement + --> $DIR/macro-expanded.rs:7:20 + | +LL | ($e:expr) => { let Some(x) = $e } + | ^^^ +... +LL | () if m!(Some(5)) => {} + | ----------- in this macro invocation + | + = note: only supported directly in conditions of `if` and `while` expressions + = note: this error originates in the macro `m` (in Nightly builds, run with -Z macro-backtrace for more info) + +error: aborting due to previous error + diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/move-guard-if-let-chain.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/move-guard-if-let-chain.rs new file mode 100644 index 000000000..5c333cd77 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/move-guard-if-let-chain.rs @@ -0,0 +1,97 @@ +#![feature(if_let_guard)] +#![feature(let_chains)] +#![allow(irrefutable_let_patterns)] + +fn same_pattern(c: bool) { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, 2) if let y = x && c => (), + (1, 2) if let z = x => (), //~ ERROR use of moved value: `x` + _ => (), + } +} + +fn same_pattern_ok(c: bool) { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, 2) if c && let y = x => (), + (1, 2) if let z = x => (), + _ => (), + } +} + +fn different_patterns(c: bool) { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, _) if let y = x && c => (), + (_, 2) if let z = x => (), //~ ERROR use of moved value: `x` + _ => (), + } +} + +fn different_patterns_ok(c: bool) { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, _) if c && let y = x => (), + (_, 2) if let z = x => (), + _ => (), + } +} + +fn or_pattern(c: bool) { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, _) | (_, 2) if let y = x && c => (), //~ ERROR use of moved value: `x` + _ => (), + } +} + +fn or_pattern_ok(c: bool) { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, _) | (_, 2) if c && let y = x => (), + _ => (), + } +} + +fn use_in_arm(c: bool) { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, 2) if let y = x && c => false, + _ => { *x == 1 }, //~ ERROR use of moved value: `x` + }; +} + +fn use_in_arm_ok(c: bool) { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, 2) if c && let y = x => false, + _ => { *x == 1 }, + }; +} + +fn main() {} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/move-guard-if-let-chain.stderr b/tests/ui/rfcs/rfc-2294-if-let-guard/move-guard-if-let-chain.stderr new file mode 100644 index 000000000..d27fde582 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/move-guard-if-let-chain.stderr @@ -0,0 +1,67 @@ +error[E0382]: use of moved value: `x` + --> $DIR/move-guard-if-let-chain.rs:12:27 + | +LL | let x: Box<_> = Box::new(1); + | - move occurs because `x` has type `Box<i32>`, which does not implement the `Copy` trait +... +LL | (1, 2) if let y = x && c => (), + | - value moved here +LL | (1, 2) if let z = x => (), + | ^ value used here after move + | +help: borrow this binding in the pattern to avoid moving the value + | +LL | (1, 2) if let ref y = x && c => (), + | +++ + +error[E0382]: use of moved value: `x` + --> $DIR/move-guard-if-let-chain.rs:36:27 + | +LL | let x: Box<_> = Box::new(1); + | - move occurs because `x` has type `Box<i32>`, which does not implement the `Copy` trait +... +LL | (1, _) if let y = x && c => (), + | - value moved here +LL | (_, 2) if let z = x => (), + | ^ value used here after move + | +help: borrow this binding in the pattern to avoid moving the value + | +LL | (1, _) if let ref y = x && c => (), + | +++ + +error[E0382]: use of moved value: `x` + --> $DIR/move-guard-if-let-chain.rs:59:36 + | +LL | let x: Box<_> = Box::new(1); + | - move occurs because `x` has type `Box<i32>`, which does not implement the `Copy` trait +... +LL | (1, _) | (_, 2) if let y = x && c => (), + | - ^ value used here after move + | | + | value moved here + | +help: borrow this binding in the pattern to avoid moving the value + | +LL | (1, _) | (_, 2) if let ref y = x && c => (), + | +++ + +error[E0382]: use of moved value: `x` + --> $DIR/move-guard-if-let-chain.rs:82:16 + | +LL | let x: Box<_> = Box::new(1); + | - move occurs because `x` has type `Box<i32>`, which does not implement the `Copy` trait +... +LL | (1, 2) if let y = x && c => false, + | - value moved here +LL | _ => { *x == 1 }, + | ^^ value used here after move + | +help: borrow this binding in the pattern to avoid moving the value + | +LL | (1, 2) if let ref y = x && c => false, + | +++ + +error: aborting due to 4 previous errors + +For more information about this error, try `rustc --explain E0382`. diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/move-guard-if-let.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/move-guard-if-let.rs new file mode 100644 index 000000000..071b86e2e --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/move-guard-if-let.rs @@ -0,0 +1,41 @@ +// Check that borrowck knows that moves in the pattern for if-let guards +// only happen when the pattern is matched. + +// build-pass + +#![feature(if_let_guard)] +#![allow(irrefutable_let_patterns)] + +fn same_pattern() { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, 2) if let y = x => (), + (1, 2) if let z = x => (), + _ => (), + } +} + +fn or_pattern() { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, _) | (_, 2) if let y = x => (), + _ => (), + } +} + +fn main() { + let x: Box<_> = Box::new(1); + + let v = (1, 2); + + match v { + (1, 2) if let y = x => false, + _ => { *x == 1 }, + }; +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/parens.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/parens.rs new file mode 100644 index 000000000..f12824db9 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/parens.rs @@ -0,0 +1,25 @@ +// Parenthesised let "expressions" are not allowed in guards + +#![feature(if_let_guard)] +#![feature(let_chains)] + +#[cfg(FALSE)] +fn un_cfged() { + match () { + () if let 0 = 1 => {} + () if (let 0 = 1) => {} + //~^ ERROR expected expression, found `let` statement + () if (((let 0 = 1))) => {} + //~^ ERROR expected expression, found `let` statement + } +} + +fn main() { + match () { + () if let 0 = 1 => {} + () if (let 0 = 1) => {} + //~^ ERROR expected expression, found `let` statement + () if (((let 0 = 1))) => {} + //~^ ERROR expected expression, found `let` statement + } +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/parens.stderr b/tests/ui/rfcs/rfc-2294-if-let-guard/parens.stderr new file mode 100644 index 000000000..0c16d9c54 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/parens.stderr @@ -0,0 +1,54 @@ +error: expected expression, found `let` statement + --> $DIR/parens.rs:10:16 + | +LL | () if (let 0 = 1) => {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/parens.rs:10:16 + | +LL | () if (let 0 = 1) => {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/parens.rs:12:18 + | +LL | () if (((let 0 = 1))) => {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/parens.rs:12:18 + | +LL | () if (((let 0 = 1))) => {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/parens.rs:20:16 + | +LL | () if (let 0 = 1) => {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/parens.rs:20:16 + | +LL | () if (let 0 = 1) => {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/parens.rs:22:18 + | +LL | () if (((let 0 = 1))) => {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/parens.rs:22:18 + | +LL | () if (((let 0 = 1))) => {} + | ^^^^^^^^^ + +error: aborting due to 4 previous errors + diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/partially-macro-expanded.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/partially-macro-expanded.rs new file mode 100644 index 000000000..d91b3a358 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/partially-macro-expanded.rs @@ -0,0 +1,18 @@ +// Macros can be used for (parts of) the pattern and expression in an if let guard +// check-pass + +#![feature(if_let_guard)] +#![feature(let_chains)] + +macro_rules! m { + (pattern $i:ident) => { Some($i) }; + (expression $e:expr) => { $e }; +} + +fn main() { + match () { + () if let m!(pattern x) = m!(expression Some(4)) => {} + () if let [m!(pattern y)] = [Some(8 + m!(expression 4))] => {} + _ => {} + } +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/shadowing.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/shadowing.rs new file mode 100644 index 000000000..dba292ef9 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/shadowing.rs @@ -0,0 +1,23 @@ +// Check shadowing in if let guards works as expected. +// check-pass + +#![feature(if_let_guard)] +#![feature(let_chains)] + +fn main() { + let x: Option<Option<i32>> = Some(Some(6)); + match x { + Some(x) if let Some(x) = x => { + let _: i32 = x; + } + _ => {} + } + + let y: Option<Option<Option<i32>>> = Some(Some(Some(-24))); + match y { + Some(y) if let Some(y) = y && let Some(y) = y => { + let _: i32 = y; + } + _ => {} + } +} diff --git a/tests/ui/rfcs/rfc-2294-if-let-guard/type-inference.rs b/tests/ui/rfcs/rfc-2294-if-let-guard/type-inference.rs new file mode 100644 index 000000000..ef7a772e6 --- /dev/null +++ b/tests/ui/rfcs/rfc-2294-if-let-guard/type-inference.rs @@ -0,0 +1,16 @@ +// check-pass + +#![feature(if_let_guard)] + +struct S; + +fn get<T>() -> Option<T> { + None +} + +fn main() { + match get() { + x if let Some(S) = x => {} + _ => {} + } +} diff --git a/tests/ui/rfcs/rfc-2396-target_feature-11/fn-ptr.mir.stderr b/tests/ui/rfcs/rfc-2396-target_feature-11/fn-ptr.mir.stderr index b0ac5dc44..e08ffe42d 100644 --- a/tests/ui/rfcs/rfc-2396-target_feature-11/fn-ptr.mir.stderr +++ b/tests/ui/rfcs/rfc-2396-target_feature-11/fn-ptr.mir.stderr @@ -13,7 +13,6 @@ LL | let foo: fn() = foo; found fn item `fn() {foo}` = note: fn items are distinct from fn pointers = note: functions with `#[target_feature]` can only be coerced to `unsafe` function pointers - = note: when the arguments and return types match, functions can be coerced to function pointers help: consider casting to a fn pointer | LL | let foo: fn() = foo as fn(); diff --git a/tests/ui/rfcs/rfc-2396-target_feature-11/fn-ptr.thir.stderr b/tests/ui/rfcs/rfc-2396-target_feature-11/fn-ptr.thir.stderr index b0ac5dc44..e08ffe42d 100644 --- a/tests/ui/rfcs/rfc-2396-target_feature-11/fn-ptr.thir.stderr +++ b/tests/ui/rfcs/rfc-2396-target_feature-11/fn-ptr.thir.stderr @@ -13,7 +13,6 @@ LL | let foo: fn() = foo; found fn item `fn() {foo}` = note: fn items are distinct from fn pointers = note: functions with `#[target_feature]` can only be coerced to `unsafe` function pointers - = note: when the arguments and return types match, functions can be coerced to function pointers help: consider casting to a fn pointer | LL | let foo: fn() = foo as fn(); diff --git a/tests/ui/rfcs/rfc-2396-target_feature-11/issue-108645-target-feature-on-start.rs b/tests/ui/rfcs/rfc-2396-target_feature-11/issue-108645-target-feature-on-start.rs index 50e8ce2fd..221c0416d 100644 --- a/tests/ui/rfcs/rfc-2396-target_feature-11/issue-108645-target-feature-on-start.rs +++ b/tests/ui/rfcs/rfc-2396-target_feature-11/issue-108645-target-feature-on-start.rs @@ -5,5 +5,5 @@ #[start] #[target_feature(enable = "avx2")] -//~^ ERROR `start` is not allowed to have `#[target_feature]` +//~^ ERROR `#[start]` function is not allowed to have `#[target_feature]` fn start(_argc: isize, _argv: *const *const u8) -> isize { 0 } diff --git a/tests/ui/rfcs/rfc-2396-target_feature-11/issue-108645-target-feature-on-start.stderr b/tests/ui/rfcs/rfc-2396-target_feature-11/issue-108645-target-feature-on-start.stderr index 07687f3c7..b49f8afd9 100644 --- a/tests/ui/rfcs/rfc-2396-target_feature-11/issue-108645-target-feature-on-start.stderr +++ b/tests/ui/rfcs/rfc-2396-target_feature-11/issue-108645-target-feature-on-start.stderr @@ -1,11 +1,11 @@ -error: `start` is not allowed to have `#[target_feature]` +error: `#[start]` function is not allowed to have `#[target_feature]` --> $DIR/issue-108645-target-feature-on-start.rs:7:1 | LL | #[target_feature(enable = "avx2")] | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ LL | LL | fn start(_argc: isize, _argv: *const *const u8) -> isize { 0 } - | -------------------------------------------------------- `start` is not allowed to have `#[target_feature]` + | -------------------------------------------------------- `#[start]` function is not allowed to have `#[target_feature]` error: aborting due to previous error diff --git a/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden-2.rs b/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden-2.rs deleted file mode 100644 index f8e033937..000000000 --- a/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden-2.rs +++ /dev/null @@ -1,6 +0,0 @@ -// compile-flags:--extern му_сгате -// edition:2018 - -use му_сгате::baz; //~ ERROR cannot load a crate with a non-ascii name `му_сгате` - -fn main() {} diff --git a/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden-2.stderr b/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden-2.stderr deleted file mode 100644 index 05fc4fb22..000000000 --- a/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden-2.stderr +++ /dev/null @@ -1,8 +0,0 @@ -error: cannot load a crate with a non-ascii name `му_сгате` - --> $DIR/crate_name_nonascii_forbidden-2.rs:4:5 - | -LL | use му_сгате::baz; - | ^^^^^^^^ - -error: aborting due to previous error - diff --git a/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden-1.rs b/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden.rs index c07ba54af..c07ba54af 100644 --- a/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden-1.rs +++ b/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden.rs diff --git a/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden-1.stderr b/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden.stderr index a8f3abe59..5aade17cb 100644 --- a/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden-1.stderr +++ b/tests/ui/rfcs/rfc-2457-non-ascii-idents/crate_name_nonascii_forbidden.stderr @@ -1,5 +1,5 @@ error: cannot load a crate with a non-ascii name `ьаг` - --> $DIR/crate_name_nonascii_forbidden-1.rs:1:1 + --> $DIR/crate_name_nonascii_forbidden.rs:1:1 | LL | extern crate ьаг; | ^^^^^^^^^^^^^^^^^ diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/ast-validate-guards.rs b/tests/ui/rfcs/rfc-2497-if-let-chains/ast-validate-guards.rs index e6dee2a1d..cb3be59be 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/ast-validate-guards.rs +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/ast-validate-guards.rs @@ -3,7 +3,7 @@ fn let_or_guard(x: Result<Option<i32>, ()>) { match x { Ok(opt) if let Some(4) = opt || false => {} - //~^ ERROR `let` expressions are not supported here + //~^ ERROR expected expression, found `let` statement _ => {} } } diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/ast-validate-guards.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/ast-validate-guards.stderr index 26850998c..4b85fdd50 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/ast-validate-guards.stderr +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/ast-validate-guards.stderr @@ -1,4 +1,4 @@ -error: `let` expressions are not supported here +error: expected expression, found `let` statement --> $DIR/ast-validate-guards.rs:5:20 | LL | Ok(opt) if let Some(4) = opt || false => {} diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/avoid-invalid-mir.rs b/tests/ui/rfcs/rfc-2497-if-let-chains/avoid-invalid-mir.rs new file mode 100644 index 000000000..530458064 --- /dev/null +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/avoid-invalid-mir.rs @@ -0,0 +1,14 @@ +// Regression test for #104172 + +const N: usize = { + struct U; + !let y = 42; + //~^ ERROR expected expression, found `let` statement + 3 +}; + +struct S { + x: [(); N] +} + +fn main() {} diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/avoid-invalid-mir.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/avoid-invalid-mir.stderr new file mode 100644 index 000000000..3eaccde3b --- /dev/null +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/avoid-invalid-mir.stderr @@ -0,0 +1,10 @@ +error: expected expression, found `let` statement + --> $DIR/avoid-invalid-mir.rs:5:6 + | +LL | !let y = 42; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: aborting due to previous error + diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/chains-without-let.rs b/tests/ui/rfcs/rfc-2497-if-let-chains/chains-without-let.rs index e0dded152..2c0571a7b 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/chains-without-let.rs +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/chains-without-let.rs @@ -1,19 +1,18 @@ +// check-pass + fn and_chain() { let z; if true && { z = 3; true} && z == 3 {} - //~^ ERROR E0381 } fn and_chain_2() { let z; true && { z = 3; true} && z == 3; - //~^ ERROR E0381 } fn or_chain() { let z; if false || { z = 3; false} || z == 3 {} - //~^ ERROR E0381 } fn main() { diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/chains-without-let.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/chains-without-let.stderr deleted file mode 100644 index 30d5a6779..000000000 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/chains-without-let.stderr +++ /dev/null @@ -1,33 +0,0 @@ -error[E0381]: used binding `z` is possibly-uninitialized - --> $DIR/chains-without-let.rs:3:34 - | -LL | let z; - | - binding declared here but left uninitialized -LL | if true && { z = 3; true} && z == 3 {} - | ----- ^ `z` used here but it is possibly-uninitialized - | | - | binding initialized here in some conditions - -error[E0381]: used binding `z` is possibly-uninitialized - --> $DIR/chains-without-let.rs:9:31 - | -LL | let z; - | - binding declared here but left uninitialized -LL | true && { z = 3; true} && z == 3; - | ----- ^ `z` used here but it is possibly-uninitialized - | | - | binding initialized here in some conditions - -error[E0381]: used binding `z` is possibly-uninitialized - --> $DIR/chains-without-let.rs:15:36 - | -LL | let z; - | - binding declared here but left uninitialized -LL | if false || { z = 3; false} || z == 3 {} - | ----- ^ `z` used here but it is possibly-uninitialized - | | - | binding initialized here in some conditions - -error: aborting due to 3 previous errors - -For more information about this error, try `rustc --explain E0381`. diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions-without-feature-gate.rs b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions-without-feature-gate.rs new file mode 100644 index 000000000..096036bb1 --- /dev/null +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions-without-feature-gate.rs @@ -0,0 +1,340 @@ +// Check that we don't suggest enabling a feature for code that's +// not accepted even with that feature. + +#![allow(irrefutable_let_patterns)] + +use std::ops::Range; + +fn main() {} + +fn _if() { + if (let 0 = 1) {} + //~^ ERROR expected expression, found `let` statement + + if (((let 0 = 1))) {} + //~^ ERROR expected expression, found `let` statement + + if (let 0 = 1) && true {} + //~^ ERROR expected expression, found `let` statement + + if true && (let 0 = 1) {} + //~^ ERROR expected expression, found `let` statement + + if (let 0 = 1) && (let 0 = 1) {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement + + if (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement +} + +fn _while() { + while (let 0 = 1) {} + //~^ ERROR expected expression, found `let` statement + + while (((let 0 = 1))) {} + //~^ ERROR expected expression, found `let` statement + + while (let 0 = 1) && true {} + //~^ ERROR expected expression, found `let` statement + + while true && (let 0 = 1) {} + //~^ ERROR expected expression, found `let` statement + + while (let 0 = 1) && (let 0 = 1) {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement + + while (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement +} + +fn _macros() { + macro_rules! use_expr { + ($e:expr) => { + if $e {} + while $e {} + } + } + use_expr!((let 0 = 1 && 0 == 0)); + //~^ ERROR expected expression, found `let` statement + use_expr!((let 0 = 1)); + //~^ ERROR expected expression, found `let` statement +} + +fn nested_within_if_expr() { + if &let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + + if !let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + if *let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + if -let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + + fn _check_try_binds_tighter() -> Result<(), ()> { + if let 0 = 0? {} + //~^ ERROR the `?` operator can only be applied to values that implement `Try` + Ok(()) + } + if (let 0 = 0)? {} + //~^ ERROR expected expression, found `let` statement + + if true || let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + if (true || let 0 = 0) {} + //~^ ERROR expected expression, found `let` statement + if true && (true || let 0 = 0) {} + //~^ ERROR expected expression, found `let` statement + if true || (true && let 0 = 0) {} + //~^ ERROR expected expression, found `let` statement + + let mut x = true; + if x = let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + + if true..(let 0 = 0) {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR mismatched types + if ..(let 0 = 0) {} + //~^ ERROR expected expression, found `let` statement + if (let 0 = 0).. {} + //~^ ERROR expected expression, found `let` statement + + // Binds as `(let ... = true)..true &&/|| false`. + if let Range { start: _, end: _ } = true..true && false {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR mismatched types + if let Range { start: _, end: _ } = true..true || false {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR mismatched types + + // Binds as `(let Range { start: F, end } = F)..(|| true)`. + const F: fn() -> bool = || true; + if let Range { start: F, end } = F..|| true {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR mismatched types + + // Binds as `(let Range { start: true, end } = t)..(&&false)`. + let t = &&true; + if let Range { start: true, end } = t..&&false {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR mismatched types + + if let true = let true = true {} + //~^ ERROR expected expression, found `let` statement +} + +fn nested_within_while_expr() { + while &let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + + while !let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + while *let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + while -let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + + fn _check_try_binds_tighter() -> Result<(), ()> { + while let 0 = 0? {} + //~^ ERROR the `?` operator can only be applied to values that implement `Try` + Ok(()) + } + while (let 0 = 0)? {} + //~^ ERROR expected expression, found `let` statement + + while true || let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + while (true || let 0 = 0) {} + //~^ ERROR expected expression, found `let` statement + while true && (true || let 0 = 0) {} + //~^ ERROR expected expression, found `let` statement + while true || (true && let 0 = 0) {} + //~^ ERROR expected expression, found `let` statement + + let mut x = true; + while x = let 0 = 0 {} + //~^ ERROR expected expression, found `let` statement + + while true..(let 0 = 0) {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR mismatched types + while ..(let 0 = 0) {} + //~^ ERROR expected expression, found `let` statement + while (let 0 = 0).. {} + //~^ ERROR expected expression, found `let` statement + + // Binds as `(let ... = true)..true &&/|| false`. + while let Range { start: _, end: _ } = true..true && false {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR mismatched types + while let Range { start: _, end: _ } = true..true || false {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR mismatched types + + // Binds as `(let Range { start: F, end } = F)..(|| true)`. + const F: fn() -> bool = || true; + while let Range { start: F, end } = F..|| true {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR mismatched types + + // Binds as `(let Range { start: true, end } = t)..(&&false)`. + let t = &&true; + while let Range { start: true, end } = t..&&false {} + //~^ ERROR expected expression, found `let` statement + //~| ERROR mismatched types + + while let true = let true = true {} + //~^ ERROR expected expression, found `let` statement +} + +fn not_error_because_clarified_intent() { + if let Range { start: _, end: _ } = (true..true || false) { } + + if let Range { start: _, end: _ } = (true..true && false) { } + + while let Range { start: _, end: _ } = (true..true || false) { } + + while let Range { start: _, end: _ } = (true..true && false) { } +} + +fn outside_if_and_while_expr() { + &let 0 = 0; + //~^ ERROR expected expression, found `let` statement + + !let 0 = 0; + //~^ ERROR expected expression, found `let` statement + *let 0 = 0; + //~^ ERROR expected expression, found `let` statement + -let 0 = 0; + //~^ ERROR expected expression, found `let` statement + let _ = let _ = 3; + //~^ ERROR expected expression, found `let` statement + + fn _check_try_binds_tighter() -> Result<(), ()> { + let 0 = 0?; + //~^ ERROR the `?` operator can only be applied to values that implement `Try` + Ok(()) + } + (let 0 = 0)?; + //~^ ERROR expected expression, found `let` statement + + true || let 0 = 0; + //~^ ERROR expected expression, found `let` statement + (true || let 0 = 0); + //~^ ERROR expected expression, found `let` statement + true && (true || let 0 = 0); + //~^ ERROR expected expression, found `let` statement + + let mut x = true; + x = let 0 = 0; + //~^ ERROR expected expression, found `let` statement + + true..(let 0 = 0); + //~^ ERROR expected expression, found `let` statement + ..(let 0 = 0); + //~^ ERROR expected expression, found `let` statement + (let 0 = 0)..; + //~^ ERROR expected expression, found `let` statement + + (let Range { start: _, end: _ } = true..true || false); + //~^ ERROR mismatched types + //~| ERROR expected expression, found `let` statement + + (let true = let true = true); + //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement + + { + #[cfg(FALSE)] + let x = true && let y = 1; + //~^ ERROR expected expression, found `let` statement + } + + #[cfg(FALSE)] + { + [1, 2, 3][let _ = ()] + //~^ ERROR expected expression, found `let` statement + } + + // Check function tail position. + &let 0 = 0 + //~^ ERROR expected expression, found `let` statement +} + +// Let's make sure that `let` inside const generic arguments are considered. +fn inside_const_generic_arguments() { + struct A<const B: bool>; + impl<const B: bool> A<{B}> { const O: u32 = 5; } + + if let A::<{ + true && let 1 = 1 + //~^ ERROR expected expression, found `let` statement + }>::O = 5 {} + + while let A::<{ + true && let 1 = 1 + //~^ ERROR expected expression, found `let` statement + }>::O = 5 {} + + if A::<{ + true && let 1 = 1 + //~^ ERROR expected expression, found `let` statement + }>::O == 5 {} + + // In the cases above we have `ExprKind::Block` to help us out. + // Below however, we would not have a block and so an implementation might go + // from visiting expressions to types without banning `let` expressions down the tree. + // This tests ensures that we are not caught by surprise should the parser + // admit non-IDENT expressions in const generic arguments. + + if A::< + true && let 1 = 1 + //~^ ERROR expressions must be enclosed in braces + //~| ERROR expected expression, found `let` statement + >::O == 5 {} +} + +fn with_parenthesis() { + let opt = Some(Some(1i32)); + + if (let Some(a) = opt && true) { + //~^ ERROR expected expression, found `let` statement + } + + if (let Some(a) = opt) && true { + //~^ ERROR expected expression, found `let` statement + } + if (let Some(a) = opt) && (let Some(b) = a) { + //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement + } + + if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { + //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement + } + if (let Some(a) = opt && (let Some(b) = a)) && true { + //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement + } + if (let Some(a) = opt && (true)) && true { + //~^ ERROR expected expression, found `let` statement + } + + #[cfg(FALSE)] + let x = (true && let y = 1); + //~^ ERROR expected expression, found `let` statement + + #[cfg(FALSE)] + { + ([1, 2, 3][let _ = ()]) + //~^ ERROR expected expression, found `let` statement + } +} diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions-without-feature-gate.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions-without-feature-gate.stderr new file mode 100644 index 000000000..31f389512 --- /dev/null +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions-without-feature-gate.stderr @@ -0,0 +1,1021 @@ +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:11:9 + | +LL | if (let 0 = 1) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:11:9 + | +LL | if (let 0 = 1) {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:14:11 + | +LL | if (((let 0 = 1))) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:14:11 + | +LL | if (((let 0 = 1))) {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:17:9 + | +LL | if (let 0 = 1) && true {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:17:9 + | +LL | if (let 0 = 1) && true {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:20:17 + | +LL | if true && (let 0 = 1) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:20:17 + | +LL | if true && (let 0 = 1) {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:23:9 + | +LL | if (let 0 = 1) && (let 0 = 1) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:23:9 + | +LL | if (let 0 = 1) && (let 0 = 1) {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:23:24 + | +LL | if (let 0 = 1) && (let 0 = 1) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:23:24 + | +LL | if (let 0 = 1) && (let 0 = 1) {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:27:9 + | +LL | if (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:27:9 + | +LL | if (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:27:22 + | +LL | if (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:27:9 + | +LL | if (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:27:35 + | +LL | if (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:27:9 + | +LL | if (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:34:12 + | +LL | while (let 0 = 1) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:34:12 + | +LL | while (let 0 = 1) {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:37:14 + | +LL | while (((let 0 = 1))) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:37:14 + | +LL | while (((let 0 = 1))) {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:40:12 + | +LL | while (let 0 = 1) && true {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:40:12 + | +LL | while (let 0 = 1) && true {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:43:20 + | +LL | while true && (let 0 = 1) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:43:20 + | +LL | while true && (let 0 = 1) {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:46:12 + | +LL | while (let 0 = 1) && (let 0 = 1) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:46:12 + | +LL | while (let 0 = 1) && (let 0 = 1) {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:46:27 + | +LL | while (let 0 = 1) && (let 0 = 1) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:46:27 + | +LL | while (let 0 = 1) && (let 0 = 1) {} + | ^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:50:12 + | +LL | while (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:50:12 + | +LL | while (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:50:25 + | +LL | while (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:50:12 + | +LL | while (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:50:38 + | +LL | while (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:50:12 + | +LL | while (let 2 = 3 && let 3 = 4 && let 4 = 5) {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:70:9 + | +LL | if &let 0 = 0 {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:73:9 + | +LL | if !let 0 = 0 {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:75:9 + | +LL | if *let 0 = 0 {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:77:9 + | +LL | if -let 0 = 0 {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:85:9 + | +LL | if (let 0 = 0)? {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:88:16 + | +LL | if true || let 0 = 0 {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `||` operators are not supported in let chain expressions + --> $DIR/disallowed-positions-without-feature-gate.rs:88:13 + | +LL | if true || let 0 = 0 {} + | ^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:90:17 + | +LL | if (true || let 0 = 0) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:92:25 + | +LL | if true && (true || let 0 = 0) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:94:25 + | +LL | if true || (true && let 0 = 0) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:98:12 + | +LL | if x = let 0 = 0 {} + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:101:15 + | +LL | if true..(let 0 = 0) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:104:11 + | +LL | if ..(let 0 = 0) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:106:9 + | +LL | if (let 0 = 0).. {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:110:8 + | +LL | if let Range { start: _, end: _ } = true..true && false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:113:8 + | +LL | if let Range { start: _, end: _ } = true..true || false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:119:8 + | +LL | if let Range { start: F, end } = F..|| true {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:125:8 + | +LL | if let Range { start: true, end } = t..&&false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:129:19 + | +LL | if let true = let true = true {} + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:134:12 + | +LL | while &let 0 = 0 {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:137:12 + | +LL | while !let 0 = 0 {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:139:12 + | +LL | while *let 0 = 0 {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:141:12 + | +LL | while -let 0 = 0 {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:149:12 + | +LL | while (let 0 = 0)? {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:152:19 + | +LL | while true || let 0 = 0 {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `||` operators are not supported in let chain expressions + --> $DIR/disallowed-positions-without-feature-gate.rs:152:16 + | +LL | while true || let 0 = 0 {} + | ^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:154:20 + | +LL | while (true || let 0 = 0) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:156:28 + | +LL | while true && (true || let 0 = 0) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:158:28 + | +LL | while true || (true && let 0 = 0) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:162:15 + | +LL | while x = let 0 = 0 {} + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:165:18 + | +LL | while true..(let 0 = 0) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:168:14 + | +LL | while ..(let 0 = 0) {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:170:12 + | +LL | while (let 0 = 0).. {} + | ^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:174:11 + | +LL | while let Range { start: _, end: _ } = true..true && false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:177:11 + | +LL | while let Range { start: _, end: _ } = true..true || false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:183:11 + | +LL | while let Range { start: F, end } = F..|| true {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:189:11 + | +LL | while let Range { start: true, end } = t..&&false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:193:22 + | +LL | while let true = let true = true {} + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:208:6 + | +LL | &let 0 = 0; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:211:6 + | +LL | !let 0 = 0; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:213:6 + | +LL | *let 0 = 0; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:215:6 + | +LL | -let 0 = 0; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:217:13 + | +LL | let _ = let _ = 3; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:225:6 + | +LL | (let 0 = 0)?; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:228:13 + | +LL | true || let 0 = 0; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:230:14 + | +LL | (true || let 0 = 0); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:232:22 + | +LL | true && (true || let 0 = 0); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:236:9 + | +LL | x = let 0 = 0; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:239:12 + | +LL | true..(let 0 = 0); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:241:8 + | +LL | ..(let 0 = 0); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:243:6 + | +LL | (let 0 = 0)..; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:246:6 + | +LL | (let Range { start: _, end: _ } = true..true || false); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:250:6 + | +LL | (let true = let true = true); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:250:17 + | +LL | (let true = let true = true); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:256:25 + | +LL | let x = true && let y = 1; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:262:19 + | +LL | [1, 2, 3][let _ = ()] + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:267:6 + | +LL | &let 0 = 0 + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:277:17 + | +LL | true && let 1 = 1 + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:282:17 + | +LL | true && let 1 = 1 + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:287:17 + | +LL | true && let 1 = 1 + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:298:17 + | +LL | true && let 1 = 1 + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expressions must be enclosed in braces to be used as const generic arguments + --> $DIR/disallowed-positions-without-feature-gate.rs:298:9 + | +LL | true && let 1 = 1 + | ^^^^^^^^^^^^^^^^^ + | +help: enclose the `const` expression in braces + | +LL | { true && let 1 = 1 } + | + + + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:307:9 + | +LL | if (let Some(a) = opt && true) { + | ^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:307:9 + | +LL | if (let Some(a) = opt && true) { + | ^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:311:9 + | +LL | if (let Some(a) = opt) && true { + | ^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:311:9 + | +LL | if (let Some(a) = opt) && true { + | ^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:314:9 + | +LL | if (let Some(a) = opt) && (let Some(b) = a) { + | ^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:314:9 + | +LL | if (let Some(a) = opt) && (let Some(b) = a) { + | ^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:314:32 + | +LL | if (let Some(a) = opt) && (let Some(b) = a) { + | ^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:314:32 + | +LL | if (let Some(a) = opt) && (let Some(b) = a) { + | ^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:319:9 + | +LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { + | ^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:319:9 + | +LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:319:31 + | +LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { + | ^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:319:31 + | +LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { + | ^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:323:9 + | +LL | if (let Some(a) = opt && (let Some(b) = a)) && true { + | ^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:323:9 + | +LL | if (let Some(a) = opt && (let Some(b) = a)) && true { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:323:31 + | +LL | if (let Some(a) = opt && (let Some(b) = a)) && true { + | ^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:323:31 + | +LL | if (let Some(a) = opt && (let Some(b) = a)) && true { + | ^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:327:9 + | +LL | if (let Some(a) = opt && (true)) && true { + | ^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions +note: `let`s wrapped in parentheses are not supported in a context with let chains + --> $DIR/disallowed-positions-without-feature-gate.rs:327:9 + | +LL | if (let Some(a) = opt && (true)) && true { + | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:332:22 + | +LL | let x = (true && let y = 1); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:337:20 + | +LL | ([1, 2, 3][let _ = ()]) + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:63:16 + | +LL | use_expr!((let 0 = 1 && 0 == 0)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions-without-feature-gate.rs:65:16 + | +LL | use_expr!((let 0 = 1)); + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:101:8 + | +LL | if true..(let 0 = 0) {} + | ^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` + | + = note: expected type `bool` + found struct `std::ops::Range<bool>` + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:110:12 + | +LL | if let Range { start: _, end: _ } = true..true && false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` + | | + | expected `bool`, found `Range<_>` + | + = note: expected type `bool` + found struct `std::ops::Range<_>` + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:113:12 + | +LL | if let Range { start: _, end: _ } = true..true || false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` + | | + | expected `bool`, found `Range<_>` + | + = note: expected type `bool` + found struct `std::ops::Range<_>` + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:119:12 + | +LL | if let Range { start: F, end } = F..|| true {} + | ^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `fn() -> bool` + | | + | expected fn pointer, found `Range<_>` + | + = note: expected fn pointer `fn() -> bool` + found struct `std::ops::Range<_>` + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:125:12 + | +LL | if let Range { start: true, end } = t..&&false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `&&bool` + | | + | expected `bool`, found `Range<_>` + | + = note: expected type `bool` + found struct `std::ops::Range<_>` + +error[E0277]: the `?` operator can only be applied to values that implement `Try` + --> $DIR/disallowed-positions-without-feature-gate.rs:81:20 + | +LL | if let 0 = 0? {} + | ^^ the `?` operator cannot be applied to type `{integer}` + | + = help: the trait `Try` is not implemented for `{integer}` + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:165:11 + | +LL | while true..(let 0 = 0) {} + | ^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` + | + = note: expected type `bool` + found struct `std::ops::Range<bool>` + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:174:15 + | +LL | while let Range { start: _, end: _ } = true..true && false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` + | | + | expected `bool`, found `Range<_>` + | + = note: expected type `bool` + found struct `std::ops::Range<_>` + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:177:15 + | +LL | while let Range { start: _, end: _ } = true..true || false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` + | | + | expected `bool`, found `Range<_>` + | + = note: expected type `bool` + found struct `std::ops::Range<_>` + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:183:15 + | +LL | while let Range { start: F, end } = F..|| true {} + | ^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `fn() -> bool` + | | + | expected fn pointer, found `Range<_>` + | + = note: expected fn pointer `fn() -> bool` + found struct `std::ops::Range<_>` + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:189:15 + | +LL | while let Range { start: true, end } = t..&&false {} + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `&&bool` + | | + | expected `bool`, found `Range<_>` + | + = note: expected type `bool` + found struct `std::ops::Range<_>` + +error[E0277]: the `?` operator can only be applied to values that implement `Try` + --> $DIR/disallowed-positions-without-feature-gate.rs:145:23 + | +LL | while let 0 = 0? {} + | ^^ the `?` operator cannot be applied to type `{integer}` + | + = help: the trait `Try` is not implemented for `{integer}` + +error[E0308]: mismatched types + --> $DIR/disallowed-positions-without-feature-gate.rs:246:10 + | +LL | (let Range { start: _, end: _ } = true..true || false); + | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` + | | + | expected `bool`, found `Range<_>` + | + = note: expected type `bool` + found struct `std::ops::Range<_>` + +error[E0277]: the `?` operator can only be applied to values that implement `Try` + --> $DIR/disallowed-positions-without-feature-gate.rs:221:17 + | +LL | let 0 = 0?; + | ^^ the `?` operator cannot be applied to type `{integer}` + | + = help: the trait `Try` is not implemented for `{integer}` + +error: aborting due to 105 previous errors + +Some errors have detailed explanations: E0277, E0308. +For more information about an error, try `rustc --explain E0277`. diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs index 2a9a5472b..4ac3ea53a 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.rs @@ -27,64 +27,46 @@ fn main() {} fn _if() { if (let 0 = 1) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if (((let 0 = 1))) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if (let 0 = 1) && true {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if true && (let 0 = 1) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if (let 0 = 1) && (let 0 = 1) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement } fn _while() { while (let 0 = 1) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while (((let 0 = 1))) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while (let 0 = 1) && true {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while true && (let 0 = 1) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while (let 0 = 1) && (let 0 = 1) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement } @@ -97,32 +79,21 @@ fn _macros() { } } use_expr!((let 0 = 1 && 0 == 0)); - //~^ ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement use_expr!((let 0 = 1)); - //~^ ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement } fn nested_within_if_expr() { if &let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if !let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if *let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR type `bool` cannot be dereferenced - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if -let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR cannot apply unary operator `-` to type `bool` - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement fn _check_try_binds_tighter() -> Result<(), ()> { if let 0 = 0? {} @@ -130,91 +101,63 @@ fn nested_within_if_expr() { Ok(()) } if (let 0 = 0)? {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR the `?` operator can only be applied to values that implement `Try` - //~| ERROR the `?` operator can only be used in a function that returns `Result` - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if true || let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if (true || let 0 = 0) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if true && (true || let 0 = 0) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if true || (true && let 0 = 0) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement let mut x = true; if x = let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if true..(let 0 = 0) {} - //~^ ERROR `let` expressions are not supported here + //~^ ERROR expected expression, found `let` statement //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement if ..(let 0 = 0) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement if (let 0 = 0).. {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement // Binds as `(let ... = true)..true &&/|| false`. if let Range { start: _, end: _ } = true..true && false {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types + //~^ ERROR expected expression, found `let` statement //~| ERROR mismatched types if let Range { start: _, end: _ } = true..true || false {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types + //~^ ERROR expected expression, found `let` statement //~| ERROR mismatched types // Binds as `(let Range { start: F, end } = F)..(|| true)`. const F: fn() -> bool = || true; if let Range { start: F, end } = F..|| true {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR mismatched types + //~^ ERROR expected expression, found `let` statement //~| ERROR mismatched types // Binds as `(let Range { start: true, end } = t)..(&&false)`. let t = &&true; if let Range { start: true, end } = t..&&false {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR mismatched types + //~^ ERROR expected expression, found `let` statement //~| ERROR mismatched types if let true = let true = true {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement } fn nested_within_while_expr() { while &let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while !let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while *let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR type `bool` cannot be dereferenced - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while -let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR cannot apply unary operator `-` to type `bool` - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement fn _check_try_binds_tighter() -> Result<(), ()> { while let 0 = 0? {} @@ -222,72 +165,51 @@ fn nested_within_while_expr() { Ok(()) } while (let 0 = 0)? {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR the `?` operator can only be applied to values that implement `Try` - //~| ERROR the `?` operator can only be used in a function that returns `Result` - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while true || let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while (true || let 0 = 0) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while true && (true || let 0 = 0) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while true || (true && let 0 = 0) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement let mut x = true; while x = let 0 = 0 {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while true..(let 0 = 0) {} - //~^ ERROR `let` expressions are not supported here + //~^ ERROR expected expression, found `let` statement //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement while ..(let 0 = 0) {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement while (let 0 = 0).. {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement // Binds as `(let ... = true)..true &&/|| false`. while let Range { start: _, end: _ } = true..true && false {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types + //~^ ERROR expected expression, found `let` statement //~| ERROR mismatched types while let Range { start: _, end: _ } = true..true || false {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types + //~^ ERROR expected expression, found `let` statement //~| ERROR mismatched types // Binds as `(let Range { start: F, end } = F)..(|| true)`. const F: fn() -> bool = || true; while let Range { start: F, end } = F..|| true {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR mismatched types + //~^ ERROR expected expression, found `let` statement //~| ERROR mismatched types // Binds as `(let Range { start: true, end } = t)..(&&false)`. let t = &&true; while let Range { start: true, end } = t..&&false {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR mismatched types + //~^ ERROR expected expression, found `let` statement //~| ERROR mismatched types while let true = let true = true {} - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement } fn not_error_because_clarified_intent() { @@ -302,20 +224,14 @@ fn not_error_because_clarified_intent() { fn outside_if_and_while_expr() { &let 0 = 0; - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement !let 0 = 0; - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement *let 0 = 0; - //~^ ERROR `let` expressions are not supported here - //~| ERROR type `bool` cannot be dereferenced - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement -let 0 = 0; - //~^ ERROR `let` expressions are not supported here - //~| ERROR cannot apply unary operator `-` to type `bool` - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement fn _check_try_binds_tighter() -> Result<(), ()> { let 0 = 0?; @@ -323,44 +239,32 @@ fn outside_if_and_while_expr() { Ok(()) } (let 0 = 0)?; - //~^ ERROR `let` expressions are not supported here - //~| ERROR the `?` operator can only be used in a function that returns `Result` - //~| ERROR the `?` operator can only be applied to values that implement `Try` - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement true || let 0 = 0; - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement (true || let 0 = 0); - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement true && (true || let 0 = 0); - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement let mut x = true; x = let 0 = 0; - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement true..(let 0 = 0); - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement ..(let 0 = 0); - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement (let 0 = 0)..; - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement (let Range { start: _, end: _ } = true..true || false); - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types + //~^ ERROR mismatched types //~| ERROR expected expression, found `let` statement (let true = let true = true); - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement { @@ -377,9 +281,7 @@ fn outside_if_and_while_expr() { // Check function tail position. &let 0 = 0 - //~^ ERROR `let` expressions are not supported here - //~| ERROR mismatched types - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement } // Let's make sure that `let` inside const generic arguments are considered. @@ -389,20 +291,17 @@ fn inside_const_generic_arguments() { if let A::<{ true && let 1 = 1 - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement }>::O = 5 {} while let A::<{ true && let 1 = 1 - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement }>::O = 5 {} if A::<{ true && let 1 = 1 - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement }>::O == 5 {} // In the cases above we have `ExprKind::Block` to help us out. @@ -413,8 +312,7 @@ fn inside_const_generic_arguments() { if A::< true && let 1 = 1 - //~^ ERROR `let` expressions are not supported here - //~| ERROR expressions must be enclosed in braces + //~^ ERROR expressions must be enclosed in braces //~| ERROR expected expression, found `let` statement >::O == 5 {} } @@ -423,38 +321,29 @@ fn with_parenthesis() { let opt = Some(Some(1i32)); if (let Some(a) = opt && true) { - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement } if (let Some(a) = opt) && true { - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement } if (let Some(a) = opt) && (let Some(b) = a) { - //~^ ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement } if let Some(a) = opt && (true && true) { } if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { - //~^ ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement } if (let Some(a) = opt && (let Some(b) = a)) && true { - //~^ ERROR `let` expressions are not supported here - //~| ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement } if (let Some(a) = opt && (true)) && true { - //~^ ERROR `let` expressions are not supported here - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement } if (true && (true)) && let Some(a) = opt { diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.stderr index 81933173c..ab58abf4d 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.stderr +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/disallowed-positions.stderr @@ -2,503 +2,6 @@ error: expected expression, found `let` statement --> $DIR/disallowed-positions.rs:29:9 | LL | if (let 0 = 1) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:33:11 - | -LL | if (((let 0 = 1))) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:37:9 - | -LL | if (let 0 = 1) && true {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:41:17 - | -LL | if true && (let 0 = 1) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:45:9 - | -LL | if (let 0 = 1) && (let 0 = 1) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:45:24 - | -LL | if (let 0 = 1) && (let 0 = 1) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:51:35 - | -LL | if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:51:48 - | -LL | if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:51:61 - | -LL | if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:61:12 - | -LL | while (let 0 = 1) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:65:14 - | -LL | while (((let 0 = 1))) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:69:12 - | -LL | while (let 0 = 1) && true {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:73:20 - | -LL | while true && (let 0 = 1) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:77:12 - | -LL | while (let 0 = 1) && (let 0 = 1) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:77:27 - | -LL | while (let 0 = 1) && (let 0 = 1) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:83:38 - | -LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:83:51 - | -LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:83:64 - | -LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:110:9 - | -LL | if &let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:115:9 - | -LL | if !let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:118:9 - | -LL | if *let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:122:9 - | -LL | if -let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:132:9 - | -LL | if (let 0 = 0)? {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:138:16 - | -LL | if true || let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:141:17 - | -LL | if (true || let 0 = 0) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:144:25 - | -LL | if true && (true || let 0 = 0) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:147:25 - | -LL | if true || (true && let 0 = 0) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:152:12 - | -LL | if x = let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:157:15 - | -LL | if true..(let 0 = 0) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:161:11 - | -LL | if ..(let 0 = 0) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:165:9 - | -LL | if (let 0 = 0).. {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:196:19 - | -LL | if let true = let true = true {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:202:12 - | -LL | while &let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:207:12 - | -LL | while !let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:210:12 - | -LL | while *let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:214:12 - | -LL | while -let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:224:12 - | -LL | while (let 0 = 0)? {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:230:19 - | -LL | while true || let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:233:20 - | -LL | while (true || let 0 = 0) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:236:28 - | -LL | while true && (true || let 0 = 0) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:239:28 - | -LL | while true || (true && let 0 = 0) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:244:15 - | -LL | while x = let 0 = 0 {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:249:18 - | -LL | while true..(let 0 = 0) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:253:14 - | -LL | while ..(let 0 = 0) {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:257:12 - | -LL | while (let 0 = 0).. {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:288:22 - | -LL | while let true = let true = true {} - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:304:6 - | -LL | &let 0 = 0; - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:308:6 - | -LL | !let 0 = 0; - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:311:6 - | -LL | *let 0 = 0; - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:315:6 - | -LL | -let 0 = 0; - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:325:6 - | -LL | (let 0 = 0)?; - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:331:13 - | -LL | true || let 0 = 0; - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:334:14 - | -LL | (true || let 0 = 0); - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:337:22 - | -LL | true && (true || let 0 = 0); - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:342:9 - | -LL | x = let 0 = 0; - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:346:12 - | -LL | true..(let 0 = 0); - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:349:8 - | -LL | ..(let 0 = 0); - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:352:6 - | -LL | (let 0 = 0)..; - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:356:6 - | -LL | (let Range { start: _, end: _ } = true..true || false); - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:361:6 - | -LL | (let true = let true = true); - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:361:17 - | -LL | (let true = let true = true); - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:368:25 - | -LL | let x = true && let y = 1; - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:374:19 - | -LL | [1, 2, 3][let _ = ()] - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:379:6 - | -LL | &let 0 = 0 - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:391:17 - | -LL | true && let 1 = 1 - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:397:17 - | -LL | true && let 1 = 1 - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:403:17 - | -LL | true && let 1 = 1 - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:415:17 - | -LL | true && let 1 = 1 - | ^^^ - -error: expressions must be enclosed in braces to be used as const generic arguments - --> $DIR/disallowed-positions.rs:415:9 - | -LL | true && let 1 = 1 - | ^^^^^^^^^^^^^^^^^ - | -help: enclose the `const` expression in braces - | -LL | { true && let 1 = 1 } - | + + - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:425:9 - | -LL | if (let Some(a) = opt && true) { - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:430:9 - | -LL | if (let Some(a) = opt) && true { - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:434:9 - | -LL | if (let Some(a) = opt) && (let Some(b) = a) { - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:434:32 - | -LL | if (let Some(a) = opt) && (let Some(b) = a) { - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:443:9 - | -LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:443:31 - | -LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:449:9 - | -LL | if (let Some(a) = opt && (let Some(b) = a)) && true { - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:449:31 - | -LL | if (let Some(a) = opt && (let Some(b) = a)) && true { - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:455:9 - | -LL | if (let Some(a) = opt && (true)) && true { - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:472:22 - | -LL | let x = (true && let y = 1); - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:477:20 - | -LL | ([1, 2, 3][let _ = ()]) - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:99:16 - | -LL | use_expr!((let 0 = 1 && 0 == 0)); - | ^^^ - -error: expected expression, found `let` statement - --> $DIR/disallowed-positions.rs:103:16 - | -LL | use_expr!((let 0 = 1)); - | ^^^ - -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:29:9 - | -LL | if (let 0 = 1) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions @@ -508,1012 +11,863 @@ note: `let`s wrapped in parentheses are not supported in a context with let chai LL | if (let 0 = 1) {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:33:11 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:32:11 | LL | if (((let 0 = 1))) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:33:11 + --> $DIR/disallowed-positions.rs:32:11 | LL | if (((let 0 = 1))) {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:37:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:35:9 | LL | if (let 0 = 1) && true {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:37:9 + --> $DIR/disallowed-positions.rs:35:9 | LL | if (let 0 = 1) && true {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:41:17 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:38:17 | LL | if true && (let 0 = 1) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:41:17 + --> $DIR/disallowed-positions.rs:38:17 | LL | if true && (let 0 = 1) {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:45:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:41:9 | LL | if (let 0 = 1) && (let 0 = 1) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:45:9 + --> $DIR/disallowed-positions.rs:41:9 | LL | if (let 0 = 1) && (let 0 = 1) {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:45:24 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:41:24 | LL | if (let 0 = 1) && (let 0 = 1) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:45:24 + --> $DIR/disallowed-positions.rs:41:24 | LL | if (let 0 = 1) && (let 0 = 1) {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:51:35 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:45:35 | LL | if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:51:35 + --> $DIR/disallowed-positions.rs:45:35 | LL | if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:51:48 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:45:48 | LL | if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:51:35 + --> $DIR/disallowed-positions.rs:45:35 | LL | if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:51:61 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:45:61 | LL | if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:51:35 + --> $DIR/disallowed-positions.rs:45:35 | LL | if let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:61:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:52:12 | LL | while (let 0 = 1) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:61:12 + --> $DIR/disallowed-positions.rs:52:12 | LL | while (let 0 = 1) {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:65:14 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:55:14 | LL | while (((let 0 = 1))) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:65:14 + --> $DIR/disallowed-positions.rs:55:14 | LL | while (((let 0 = 1))) {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:69:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:58:12 | LL | while (let 0 = 1) && true {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:69:12 + --> $DIR/disallowed-positions.rs:58:12 | LL | while (let 0 = 1) && true {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:73:20 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:61:20 | LL | while true && (let 0 = 1) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:73:20 + --> $DIR/disallowed-positions.rs:61:20 | LL | while true && (let 0 = 1) {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:77:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:64:12 | LL | while (let 0 = 1) && (let 0 = 1) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:77:12 + --> $DIR/disallowed-positions.rs:64:12 | LL | while (let 0 = 1) && (let 0 = 1) {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:77:27 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:64:27 | LL | while (let 0 = 1) && (let 0 = 1) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:77:27 + --> $DIR/disallowed-positions.rs:64:27 | LL | while (let 0 = 1) && (let 0 = 1) {} | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:83:38 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:68:38 | LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:83:38 + --> $DIR/disallowed-positions.rs:68:38 | LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:83:51 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:68:51 | LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:83:38 + --> $DIR/disallowed-positions.rs:68:38 | LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:83:64 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:68:64 | LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:83:38 + --> $DIR/disallowed-positions.rs:68:38 | LL | while let 0 = 1 && let 1 = 2 && (let 2 = 3 && let 3 = 4 && let 4 = 5) {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:99:16 - | -LL | use_expr!((let 0 = 1 && 0 == 0)); - | ^^^^^^^^^ - | - = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:99:16 - | -LL | use_expr!((let 0 = 1 && 0 == 0)); - | ^^^^^^^^^^^^^^^^^^^ - -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:99:16 - | -LL | use_expr!((let 0 = 1 && 0 == 0)); - | ^^^^^^^^^ - | - = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:99:16 - | -LL | use_expr!((let 0 = 1 && 0 == 0)); - | ^^^^^^^^^^^^^^^^^^^ - -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:103:16 - | -LL | use_expr!((let 0 = 1)); - | ^^^^^^^^^ - | - = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:103:16 - | -LL | use_expr!((let 0 = 1)); - | ^^^^^^^^^ - -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:103:16 - | -LL | use_expr!((let 0 = 1)); - | ^^^^^^^^^ - | - = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:103:16 - | -LL | use_expr!((let 0 = 1)); - | ^^^^^^^^^ - -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:110:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:88:9 | LL | if &let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:115:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:91:9 | LL | if !let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:118:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:93:9 | LL | if *let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:122:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:95:9 | LL | if -let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:132:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:103:9 | LL | if (let 0 = 0)? {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:132:9 - | -LL | if (let 0 = 0)? {} - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:138:16 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:106:16 | LL | if true || let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:138:13 + --> $DIR/disallowed-positions.rs:106:13 | LL | if true || let 0 = 0 {} | ^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:141:17 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:108:17 | LL | if (true || let 0 = 0) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:141:14 - | -LL | if (true || let 0 = 0) {} - | ^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:144:25 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:110:25 | LL | if true && (true || let 0 = 0) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:144:22 - | -LL | if true && (true || let 0 = 0) {} - | ^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:147:25 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:112:25 | LL | if true || (true && let 0 = 0) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:147:17 - | -LL | if true || (true && let 0 = 0) {} - | ^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:152:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:116:12 | LL | if x = let 0 = 0 {} - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:157:15 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:119:15 | LL | if true..(let 0 = 0) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:157:15 - | -LL | if true..(let 0 = 0) {} - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:161:11 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:122:11 | LL | if ..(let 0 = 0) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:161:11 - | -LL | if ..(let 0 = 0) {} - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:165:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:124:9 | LL | if (let 0 = 0).. {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:165:9 - | -LL | if (let 0 = 0).. {} - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:171:8 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:128:8 | LL | if let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:175:8 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:131:8 | LL | if let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:182:8 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:137:8 | LL | if let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:190:8 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:143:8 | LL | if let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:196:19 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:147:19 | LL | if let true = let true = true {} - | ^^^^^^^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:202:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:152:12 | LL | while &let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:207:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:155:12 | LL | while !let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:210:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:157:12 | LL | while *let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:214:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:159:12 | LL | while -let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:224:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:167:12 | LL | while (let 0 = 0)? {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:224:12 - | -LL | while (let 0 = 0)? {} - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:230:19 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:170:19 | LL | while true || let 0 = 0 {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:230:16 + --> $DIR/disallowed-positions.rs:170:16 | LL | while true || let 0 = 0 {} | ^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:233:20 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:172:20 | LL | while (true || let 0 = 0) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:233:17 - | -LL | while (true || let 0 = 0) {} - | ^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:236:28 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:174:28 | LL | while true && (true || let 0 = 0) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:236:25 - | -LL | while true && (true || let 0 = 0) {} - | ^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:239:28 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:176:28 | LL | while true || (true && let 0 = 0) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:239:20 - | -LL | while true || (true && let 0 = 0) {} - | ^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:244:15 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:180:15 | LL | while x = let 0 = 0 {} - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:249:18 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:183:18 | LL | while true..(let 0 = 0) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:249:18 - | -LL | while true..(let 0 = 0) {} - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:253:14 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:186:14 | LL | while ..(let 0 = 0) {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:253:14 - | -LL | while ..(let 0 = 0) {} - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:257:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:188:12 | LL | while (let 0 = 0).. {} | ^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:257:12 - | -LL | while (let 0 = 0).. {} - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:263:11 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:192:11 | LL | while let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:267:11 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:195:11 | LL | while let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:274:11 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:201:11 | LL | while let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:282:11 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:207:11 | LL | while let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:288:22 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:211:22 | LL | while let true = let true = true {} - | ^^^^^^^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:304:6 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:226:6 | LL | &let 0 = 0; - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:308:6 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:229:6 | LL | !let 0 = 0; - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:311:6 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:231:6 | LL | *let 0 = 0; - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:315:6 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:233:6 | LL | -let 0 = 0; - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:325:6 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:241:6 | LL | (let 0 = 0)?; - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:325:6 - | -LL | (let 0 = 0)?; - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:331:13 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:244:13 | LL | true || let 0 = 0; - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:331:10 - | -LL | true || let 0 = 0; - | ^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:334:14 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:246:14 | LL | (true || let 0 = 0); - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:334:11 - | -LL | (true || let 0 = 0); - | ^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:337:22 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:248:22 | LL | true && (true || let 0 = 0); - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `||` operators are not supported in let chain expressions - --> $DIR/disallowed-positions.rs:337:19 - | -LL | true && (true || let 0 = 0); - | ^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:342:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:252:9 | LL | x = let 0 = 0; - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:346:12 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:255:12 | LL | true..(let 0 = 0); - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:346:12 - | -LL | true..(let 0 = 0); - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:349:8 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:257:8 | LL | ..(let 0 = 0); - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:349:8 - | -LL | ..(let 0 = 0); - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:352:6 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:259:6 | LL | (let 0 = 0)..; - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:352:6 - | -LL | (let 0 = 0)..; - | ^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:356:6 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:262:6 | LL | (let Range { start: _, end: _ } = true..true || false); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:361:6 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:266:6 | LL | (let true = let true = true); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:361:6 + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:266:17 | LL | (let true = let true = true); - | ^^^^^^^^^^^^^^^^^^^^^^^^^^ + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:272:25 + | +LL | let x = true && let y = 1; + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:278:19 + | +LL | [1, 2, 3][let _ = ()] + | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:379:6 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:283:6 | LL | &let 0 = 0 - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:391:17 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:293:17 | LL | true && let 1 = 1 - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:397:17 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:298:17 | LL | true && let 1 = 1 - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:403:17 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:303:17 | LL | true && let 1 = 1 - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:415:17 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:314:17 | LL | true && let 1 = 1 - | ^^^^^^^^^ + | ^^^ | = note: only supported directly in conditions of `if` and `while` expressions -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:425:9 +error: expressions must be enclosed in braces to be used as const generic arguments + --> $DIR/disallowed-positions.rs:314:9 + | +LL | true && let 1 = 1 + | ^^^^^^^^^^^^^^^^^ + | +help: enclose the `const` expression in braces + | +LL | { true && let 1 = 1 } + | + + + +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:323:9 | LL | if (let Some(a) = opt && true) { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:425:9 + --> $DIR/disallowed-positions.rs:323:9 | LL | if (let Some(a) = opt && true) { | ^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:430:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:327:9 | LL | if (let Some(a) = opt) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:430:9 + --> $DIR/disallowed-positions.rs:327:9 | LL | if (let Some(a) = opt) && true { | ^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:434:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:330:9 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:434:9 + --> $DIR/disallowed-positions.rs:330:9 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:434:32 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:330:32 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:434:32 + --> $DIR/disallowed-positions.rs:330:32 | LL | if (let Some(a) = opt) && (let Some(b) = a) { | ^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:443:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:337:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:443:9 + --> $DIR/disallowed-positions.rs:337:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:443:31 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:337:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:443:31 + --> $DIR/disallowed-positions.rs:337:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && b == 1 { | ^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:449:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:341:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:449:9 + --> $DIR/disallowed-positions.rs:341:9 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:449:31 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:341:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:449:31 + --> $DIR/disallowed-positions.rs:341:31 | LL | if (let Some(a) = opt && (let Some(b) = a)) && true { | ^^^^^^^^^^^^^^^ -error: `let` expressions are not supported here - --> $DIR/disallowed-positions.rs:455:9 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:345:9 | LL | if (let Some(a) = opt && (true)) && true { | ^^^^^^^^^^^^^^^^^ | = note: only supported directly in conditions of `if` and `while` expressions note: `let`s wrapped in parentheses are not supported in a context with let chains - --> $DIR/disallowed-positions.rs:455:9 + --> $DIR/disallowed-positions.rs:345:9 | LL | if (let Some(a) = opt && (true)) && true { | ^^^^^^^^^^^^^^^^^^^^^^^^^^^ -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:110:8 - | -LL | if &let 0 = 0 {} - | ^^^^^^^^^^ expected `bool`, found `&bool` - | -help: consider removing the borrow - | -LL - if &let 0 = 0 {} -LL + if let 0 = 0 {} - | - -error[E0614]: type `bool` cannot be dereferenced - --> $DIR/disallowed-positions.rs:118:8 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:361:22 | -LL | if *let 0 = 0 {} - | ^^^^^^^^^^ - -error[E0600]: cannot apply unary operator `-` to type `bool` - --> $DIR/disallowed-positions.rs:122:8 +LL | let x = (true && let y = 1); + | ^^^ | -LL | if -let 0 = 0 {} - | ^^^^^^^^^^ cannot apply unary operator `-` + = note: only supported directly in conditions of `if` and `while` expressions -error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:132:8 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:366:20 | -LL | if (let 0 = 0)? {} - | ^^^^^^^^^^^^ the `?` operator cannot be applied to type `bool` +LL | ([1, 2, 3][let _ = ()]) + | ^^^ | - = help: the trait `Try` is not implemented for `bool` + = note: only supported directly in conditions of `if` and `while` expressions -error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) - --> $DIR/disallowed-positions.rs:132:19 +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:81:16 | -LL | fn nested_within_if_expr() { - | -------------------------- this function should return `Result` or `Option` to accept `?` -... -LL | if (let 0 = 0)? {} - | ^ cannot use the `?` operator in a function that returns `()` +LL | use_expr!((let 0 = 1 && 0 == 0)); + | ^^^ | - = help: the trait `FromResidual<_>` is not implemented for `()` + = note: only supported directly in conditions of `if` and `while` expressions -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:152:8 - | -LL | if x = let 0 = 0 {} - | ^^^^^^^^^^^^^ expected `bool`, found `()` +error: expected expression, found `let` statement + --> $DIR/disallowed-positions.rs:83:16 | -help: you might have meant to compare for equality +LL | use_expr!((let 0 = 1)); + | ^^^ | -LL | if x == let 0 = 0 {} - | + + = note: only supported directly in conditions of `if` and `while` expressions error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:157:8 + --> $DIR/disallowed-positions.rs:119:8 | LL | if true..(let 0 = 0) {} | ^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` @@ -1522,25 +876,7 @@ LL | if true..(let 0 = 0) {} found struct `std::ops::Range<bool>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:161:8 - | -LL | if ..(let 0 = 0) {} - | ^^^^^^^^^^^^^ expected `bool`, found `RangeTo<bool>` - | - = note: expected type `bool` - found struct `RangeTo<bool>` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:165:8 - | -LL | if (let 0 = 0).. {} - | ^^^^^^^^^^^^^ expected `bool`, found `RangeFrom<bool>` - | - = note: expected type `bool` - found struct `RangeFrom<bool>` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:171:12 + --> $DIR/disallowed-positions.rs:128:12 | LL | if let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1551,16 +887,7 @@ LL | if let Range { start: _, end: _ } = true..true && false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:171:8 - | -LL | if let Range { start: _, end: _ } = true..true && false {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` - | - = note: expected type `bool` - found struct `std::ops::Range<bool>` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:175:12 + --> $DIR/disallowed-positions.rs:131:12 | LL | if let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1571,16 +898,7 @@ LL | if let Range { start: _, end: _ } = true..true || false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:175:8 - | -LL | if let Range { start: _, end: _ } = true..true || false {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` - | - = note: expected type `bool` - found struct `std::ops::Range<bool>` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:182:12 + --> $DIR/disallowed-positions.rs:137:12 | LL | if let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `fn() -> bool` @@ -1591,29 +909,7 @@ LL | if let Range { start: F, end } = F..|| true {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:182:41 - | -LL | if let Range { start: F, end } = F..|| true {} - | ^^^^^^^ expected `bool`, found closure - | - = note: expected type `bool` - found closure `[closure@$DIR/disallowed-positions.rs:182:41: 182:43]` -help: use parentheses to call this closure - | -LL | if let Range { start: F, end } = F..(|| true)() {} - | + +++ - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:182:8 - | -LL | if let Range { start: F, end } = F..|| true {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` - | - = note: expected type `bool` - found struct `std::ops::Range<bool>` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:190:12 + --> $DIR/disallowed-positions.rs:143:12 | LL | if let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `&&bool` @@ -1623,29 +919,8 @@ LL | if let Range { start: true, end } = t..&&false {} = note: expected type `bool` found struct `std::ops::Range<_>` -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:190:44 - | -LL | if let Range { start: true, end } = t..&&false {} - | ^^^^^^^ expected `bool`, found `&&bool` - | -help: consider removing the `&&` - | -LL - if let Range { start: true, end } = t..&&false {} -LL + if let Range { start: true, end } = t..false {} - | - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:190:8 - | -LL | if let Range { start: true, end } = t..&&false {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` - | - = note: expected type `bool` - found struct `std::ops::Range<bool>` - error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:128:20 + --> $DIR/disallowed-positions.rs:99:20 | LL | if let 0 = 0? {} | ^^ the `?` operator cannot be applied to type `{integer}` @@ -1653,61 +928,7 @@ LL | if let 0 = 0? {} = help: the trait `Try` is not implemented for `{integer}` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:202:11 - | -LL | while &let 0 = 0 {} - | ^^^^^^^^^^ expected `bool`, found `&bool` - | -help: consider removing the borrow - | -LL - while &let 0 = 0 {} -LL + while let 0 = 0 {} - | - -error[E0614]: type `bool` cannot be dereferenced - --> $DIR/disallowed-positions.rs:210:11 - | -LL | while *let 0 = 0 {} - | ^^^^^^^^^^ - -error[E0600]: cannot apply unary operator `-` to type `bool` - --> $DIR/disallowed-positions.rs:214:11 - | -LL | while -let 0 = 0 {} - | ^^^^^^^^^^ cannot apply unary operator `-` - -error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:224:11 - | -LL | while (let 0 = 0)? {} - | ^^^^^^^^^^^^ the `?` operator cannot be applied to type `bool` - | - = help: the trait `Try` is not implemented for `bool` - -error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) - --> $DIR/disallowed-positions.rs:224:22 - | -LL | fn nested_within_while_expr() { - | ----------------------------- this function should return `Result` or `Option` to accept `?` -... -LL | while (let 0 = 0)? {} - | ^ cannot use the `?` operator in a function that returns `()` - | - = help: the trait `FromResidual<_>` is not implemented for `()` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:244:11 - | -LL | while x = let 0 = 0 {} - | ^^^^^^^^^^^^^ expected `bool`, found `()` - | -help: you might have meant to compare for equality - | -LL | while x == let 0 = 0 {} - | + - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:249:11 + --> $DIR/disallowed-positions.rs:183:11 | LL | while true..(let 0 = 0) {} | ^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` @@ -1716,25 +937,7 @@ LL | while true..(let 0 = 0) {} found struct `std::ops::Range<bool>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:253:11 - | -LL | while ..(let 0 = 0) {} - | ^^^^^^^^^^^^^ expected `bool`, found `RangeTo<bool>` - | - = note: expected type `bool` - found struct `RangeTo<bool>` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:257:11 - | -LL | while (let 0 = 0).. {} - | ^^^^^^^^^^^^^ expected `bool`, found `RangeFrom<bool>` - | - = note: expected type `bool` - found struct `RangeFrom<bool>` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:263:15 + --> $DIR/disallowed-positions.rs:192:15 | LL | while let Range { start: _, end: _ } = true..true && false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1745,16 +948,7 @@ LL | while let Range { start: _, end: _ } = true..true && false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:263:11 - | -LL | while let Range { start: _, end: _ } = true..true && false {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` - | - = note: expected type `bool` - found struct `std::ops::Range<bool>` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:267:15 + --> $DIR/disallowed-positions.rs:195:15 | LL | while let Range { start: _, end: _ } = true..true || false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1765,16 +959,7 @@ LL | while let Range { start: _, end: _ } = true..true || false {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:267:11 - | -LL | while let Range { start: _, end: _ } = true..true || false {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` - | - = note: expected type `bool` - found struct `std::ops::Range<bool>` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:274:15 + --> $DIR/disallowed-positions.rs:201:15 | LL | while let Range { start: F, end } = F..|| true {} | ^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `fn() -> bool` @@ -1785,29 +970,7 @@ LL | while let Range { start: F, end } = F..|| true {} found struct `std::ops::Range<_>` error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:274:44 - | -LL | while let Range { start: F, end } = F..|| true {} - | ^^^^^^^ expected `bool`, found closure - | - = note: expected type `bool` - found closure `[closure@$DIR/disallowed-positions.rs:274:44: 274:46]` -help: use parentheses to call this closure - | -LL | while let Range { start: F, end } = F..(|| true)() {} - | + +++ - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:274:11 - | -LL | while let Range { start: F, end } = F..|| true {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` - | - = note: expected type `bool` - found struct `std::ops::Range<bool>` - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:282:15 + --> $DIR/disallowed-positions.rs:207:15 | LL | while let Range { start: true, end } = t..&&false {} | ^^^^^^^^^^^^^^^^^^^^^^^^^^ - this expression has type `&&bool` @@ -1817,68 +980,16 @@ LL | while let Range { start: true, end } = t..&&false {} = note: expected type `bool` found struct `std::ops::Range<_>` -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:282:47 - | -LL | while let Range { start: true, end } = t..&&false {} - | ^^^^^^^ expected `bool`, found `&&bool` - | -help: consider removing the `&&` - | -LL - while let Range { start: true, end } = t..&&false {} -LL + while let Range { start: true, end } = t..false {} - | - -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:282:11 - | -LL | while let Range { start: true, end } = t..&&false {} - | ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found `Range<bool>` - | - = note: expected type `bool` - found struct `std::ops::Range<bool>` - error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:220:23 + --> $DIR/disallowed-positions.rs:163:23 | LL | while let 0 = 0? {} | ^^ the `?` operator cannot be applied to type `{integer}` | = help: the trait `Try` is not implemented for `{integer}` -error[E0614]: type `bool` cannot be dereferenced - --> $DIR/disallowed-positions.rs:311:5 - | -LL | *let 0 = 0; - | ^^^^^^^^^^ - -error[E0600]: cannot apply unary operator `-` to type `bool` - --> $DIR/disallowed-positions.rs:315:5 - | -LL | -let 0 = 0; - | ^^^^^^^^^^ cannot apply unary operator `-` - -error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:325:5 - | -LL | (let 0 = 0)?; - | ^^^^^^^^^^^^ the `?` operator cannot be applied to type `bool` - | - = help: the trait `Try` is not implemented for `bool` - -error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `FromResidual`) - --> $DIR/disallowed-positions.rs:325:16 - | -LL | fn outside_if_and_while_expr() { - | ------------------------------ this function should return `Result` or `Option` to accept `?` -... -LL | (let 0 = 0)?; - | ^ cannot use the `?` operator in a function that returns `()` - | - = help: the trait `FromResidual<_>` is not implemented for `()` - error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:356:10 + --> $DIR/disallowed-positions.rs:262:10 | LL | (let Range { start: _, end: _ } = true..true || false); | ^^^^^^^^^^^^^^^^^^^^^^^^^^ ---- this expression has type `bool` @@ -1888,24 +999,15 @@ LL | (let Range { start: _, end: _ } = true..true || false); = note: expected type `bool` found struct `std::ops::Range<_>` -error[E0308]: mismatched types - --> $DIR/disallowed-positions.rs:379:5 - | -LL | fn outside_if_and_while_expr() { - | - help: try adding a return type: `-> &bool` -... -LL | &let 0 = 0 - | ^^^^^^^^^^ expected `()`, found `&bool` - error[E0277]: the `?` operator can only be applied to values that implement `Try` - --> $DIR/disallowed-positions.rs:321:17 + --> $DIR/disallowed-positions.rs:237:17 | LL | let 0 = 0?; | ^^ the `?` operator cannot be applied to type `{integer}` | = help: the trait `Try` is not implemented for `{integer}` -error: aborting due to 215 previous errors +error: aborting due to 104 previous errors -Some errors have detailed explanations: E0277, E0308, E0600, E0614. +Some errors have detailed explanations: E0277, E0308. For more information about an error, try `rustc --explain E0277`. diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.rs b/tests/ui/rfcs/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.rs index 2a6c14435..3c572054e 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.rs +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.rs @@ -14,7 +14,6 @@ fn main() { }; let Some(n) = opt && let another = n else { //~^ ERROR a `&&` expression cannot be directly assigned in `let...else` - //~| ERROR `let` expressions are not supported here //~| ERROR mismatched types //~| ERROR mismatched types //~| ERROR expected expression, found `let` statement diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.stderr index 9bc3e7541..0442f1218 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.stderr +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/ensure-that-let-else-does-not-interact-with-let-chains.stderr @@ -14,6 +14,8 @@ error: expected expression, found `let` statement | LL | let Some(n) = opt && let another = n else { | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions error: a `&&` expression cannot be directly assigned in `let...else` --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:15:19 @@ -27,13 +29,13 @@ LL | let Some(n) = (opt && let another = n) else { | + + error: this `if` expression is missing a block after the condition - --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:24:5 + --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:23:5 | LL | if let Some(n) = opt else { | ^^ | help: add a block here - --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:24:25 + --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:23:25 | LL | if let Some(n) = opt else { | ^ @@ -44,31 +46,31 @@ LL + let Some(n) = opt else { | error: this `if` expression is missing a block after the condition - --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:28:5 + --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:27:5 | LL | if let Some(n) = opt && n == 1 else { | ^^ | help: add a block here - --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:28:35 + --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:27:35 | LL | if let Some(n) = opt && n == 1 else { | ^ error: this `if` expression is missing a block after the condition - --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:32:5 + --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:31:5 | LL | if let Some(n) = opt && let another = n else { | ^^ | help: add a block here - --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:32:44 + --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:31:44 | LL | if let Some(n) = opt && let another = n else { | ^ error: expected `{`, found keyword `else` - --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:38:33 + --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:37:33 | LL | while let Some(n) = opt else { | ----- ----------------- ^^^^ expected `{` @@ -77,7 +79,7 @@ LL | while let Some(n) = opt else { | while parsing the body of this `while` expression error: expected `{`, found keyword `else` - --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:44:43 + --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:43:43 | LL | while let Some(n) = opt && n == 1 else { | ----- --------------------------- ^^^^ expected `{` @@ -86,7 +88,7 @@ LL | while let Some(n) = opt && n == 1 else { | while parsing the body of this `while` expression error: expected `{`, found keyword `else` - --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:50:52 + --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:49:52 | LL | while let Some(n) = opt && let another = n else { | ----- ------------------------------------ ^^^^ expected `{` @@ -94,14 +96,6 @@ LL | while let Some(n) = opt && let another = n else { | | this `while` condition successfully parsed | while parsing the body of this `while` expression -error: `let` expressions are not supported here - --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:15:26 - | -LL | let Some(n) = opt && let another = n else { - | ^^^^^^^^^^^^^^^ - | - = note: only supported directly in conditions of `if` and `while` expressions - error[E0308]: mismatched types --> $DIR/ensure-that-let-else-does-not-interact-with-let-chains.rs:9:19 | @@ -142,6 +136,6 @@ LL | let Some(n) = opt && let another = n else { = note: expected type `bool` found enum `Option<_>` -error: aborting due to 14 previous errors +error: aborting due to 13 previous errors For more information about this error, try `rustc --explain E0308`. diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/feature-gate.rs b/tests/ui/rfcs/rfc-2497-if-let-chains/feature-gate.rs index 2b407ef51..bca7564ef 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/feature-gate.rs +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/feature-gate.rs @@ -43,8 +43,7 @@ fn _macros() { macro_rules! noop_expr { ($e:expr) => {}; } noop_expr!((let 0 = 1)); - //~^ ERROR `let` expressions in this position are unstable [E0658] - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement macro_rules! use_expr { ($e:expr) => { @@ -53,8 +52,7 @@ fn _macros() { } } #[cfg(FALSE)] (let 0 = 1); - //~^ ERROR `let` expressions in this position are unstable [E0658] - //~| ERROR expected expression, found `let` statement + //~^ ERROR expected expression, found `let` statement use_expr!(let 0 = 1); //~^ ERROR no rules expected the token `let` } diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/feature-gate.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/feature-gate.stderr index 7a43b71fc..6f7473675 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/feature-gate.stderr +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/feature-gate.stderr @@ -1,17 +1,21 @@ error: expected expression, found `let` statement - --> $DIR/feature-gate.rs:55:20 + --> $DIR/feature-gate.rs:54:20 | LL | #[cfg(FALSE)] (let 0 = 1); | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement --> $DIR/feature-gate.rs:45:17 | LL | noop_expr!((let 0 = 1)); | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions error: no rules expected the token `let` - --> $DIR/feature-gate.rs:58:15 + --> $DIR/feature-gate.rs:56:15 | LL | macro_rules! use_expr { | --------------------- when calling this macro @@ -20,7 +24,7 @@ LL | use_expr!(let 0 = 1); | ^^^ no rules expected this token in macro call | note: while trying to match meta-variable `$e:expr` - --> $DIR/feature-gate.rs:50:10 + --> $DIR/feature-gate.rs:49:10 | LL | ($e:expr) => { | ^^^^^^^ @@ -97,24 +101,6 @@ LL | while let Range { start: _, end: _ } = (true..true) && false {} = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information = help: add `#![feature(let_chains)]` to the crate attributes to enable -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:55:20 - | -LL | #[cfg(FALSE)] (let 0 = 1); - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error[E0658]: `let` expressions in this position are unstable - --> $DIR/feature-gate.rs:45:17 - | -LL | noop_expr!((let 0 = 1)); - | ^^^^^^^^^ - | - = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information - = help: add `#![feature(let_chains)]` to the crate attributes to enable - -error: aborting due to 13 previous errors +error: aborting due to 11 previous errors For more information about this error, try `rustc --explain E0658`. diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.rs b/tests/ui/rfcs/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.rs index a942d1f4c..dce1c19ff 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.rs +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.rs @@ -13,6 +13,7 @@ fn main() { if let Some(elem) = _opt && [1, 2, 3][let _ = &&let Some(x) = Some(42)] = 1 { //~^ ERROR expected expression, found `let` statement //~| ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement true } } @@ -31,6 +32,7 @@ fn main() { { if let Some(elem) = _opt && [1, 2, 3][let _ = ()] = 1 { //~^ ERROR expected expression, found `let` statement + //~| ERROR expected expression, found `let` statement true } } diff --git a/tests/ui/rfcs/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.stderr b/tests/ui/rfcs/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.stderr index d1ce83c72..247fad2e9 100644 --- a/tests/ui/rfcs/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.stderr +++ b/tests/ui/rfcs/rfc-2497-if-let-chains/invalid-let-in-a-valid-let-context.stderr @@ -3,36 +3,64 @@ error: expected expression, found `let` statement | LL | let _ = &&let Some(x) = Some(42); | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement --> $DIR/invalid-let-in-a-valid-let-context.rs:13:47 | LL | if let Some(elem) = _opt && [1, 2, 3][let _ = &&let Some(x) = Some(42)] = 1 { | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement --> $DIR/invalid-let-in-a-valid-let-context.rs:13:57 | LL | if let Some(elem) = _opt && [1, 2, 3][let _ = &&let Some(x) = Some(42)] = 1 { | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/invalid-let-in-a-valid-let-context.rs:13:12 + | +LL | if let Some(elem) = _opt && [1, 2, 3][let _ = &&let Some(x) = Some(42)] = 1 { + | ^^^^^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/invalid-let-in-a-valid-let-context.rs:23:23 + --> $DIR/invalid-let-in-a-valid-let-context.rs:24:23 | LL | [1, 2, 3][let _ = ()]; | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/invalid-let-in-a-valid-let-context.rs:32:47 + --> $DIR/invalid-let-in-a-valid-let-context.rs:33:47 | LL | if let Some(elem) = _opt && [1, 2, 3][let _ = ()] = 1 { | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions + +error: expected expression, found `let` statement + --> $DIR/invalid-let-in-a-valid-let-context.rs:33:12 + | +LL | if let Some(elem) = _opt && [1, 2, 3][let _ = ()] = 1 { + | ^^^^^^^^^^^^^^^^^^^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions error: expected expression, found `let` statement - --> $DIR/invalid-let-in-a-valid-let-context.rs:40:21 + --> $DIR/invalid-let-in-a-valid-let-context.rs:42:21 | LL | let x = let y = 1; | ^^^ + | + = note: only supported directly in conditions of `if` and `while` expressions -error: aborting due to 6 previous errors +error: aborting due to 8 previous errors diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type-const-bound-usage.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type-const-bound-usage.stderr index 4fcfe9d47..ad11c090f 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type-const-bound-usage.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/assoc-type-const-bound-usage.stderr @@ -1,8 +1,8 @@ error[E0277]: the trait bound `T: Foo` is not satisfied - --> $DIR/assoc-type-const-bound-usage.rs:12:5 + --> $DIR/assoc-type-const-bound-usage.rs:12:6 | LL | <T as Foo>::Assoc::foo(); - | ^^^^^^^^^^^^^^^^^ the trait `Foo` is not implemented for `T` + | ^ the trait `Foo` is not implemented for `T` | help: consider further restricting this bound | diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-fail.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-fail.stderr index 2d9c49af8..452bf757d 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-fail.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/call-const-trait-method-fail.stderr @@ -1,8 +1,8 @@ error[E0277]: the trait bound `u32: ~const Plus` is not satisfied - --> $DIR/call-const-trait-method-fail.rs:25:7 + --> $DIR/call-const-trait-method-fail.rs:25:5 | LL | a.plus(b) - | ^^^^ the trait `Plus` is not implemented for `u32` + | ^ the trait `Plus` is not implemented for `u32` | = help: the trait `Plus` is implemented for `u32` diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-parse-not-item.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-parse-not-item.rs index 2c99d8bf1..15f062edf 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-parse-not-item.rs +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-parse-not-item.rs @@ -1,4 +1,5 @@ -// check-pass +// known-bug: #110395 +// FIXME check-pass #![feature(const_trait_impl, const_closures)] #![allow(incomplete_features)] diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-parse-not-item.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-parse-not-item.stderr new file mode 100644 index 000000000..f25390a90 --- /dev/null +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-parse-not-item.stderr @@ -0,0 +1,8 @@ +error: ~const can only be applied to `#[const_trait]` traits + --> $DIR/const-closure-parse-not-item.rs:7:32 + | +LL | const fn test() -> impl ~const Fn() { + | ^^^^ + +error: aborting due to previous error + diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-trait-method-fail.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-trait-method-fail.stderr index 96ffca651..4c45b0e56 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-trait-method-fail.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-trait-method-fail.stderr @@ -1,15 +1,8 @@ -error[E0015]: cannot call non-const closure in constant functions - --> $DIR/const-closure-trait-method-fail.rs:15:5 +error: ~const can only be applied to `#[const_trait]` traits + --> $DIR/const-closure-trait-method-fail.rs:14:39 | -LL | x(()) - | ^^^^^ - | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants -help: consider further restricting this bound - | -LL | const fn need_const_closure<T: ~const FnOnce(()) -> i32 + ~const std::ops::FnOnce<((),)>>(x: T) -> i32 { - | ++++++++++++++++++++++++++++++++ +LL | const fn need_const_closure<T: ~const FnOnce(()) -> i32>(x: T) -> i32 { + | ^^^^^^^^^^^^^^^^^ error: aborting due to previous error -For more information about this error, try `rustc --explain E0015`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-trait-method.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-trait-method.stderr index fd0c29118..a8ef244ea 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-trait-method.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closure-trait-method.stderr @@ -1,15 +1,8 @@ -error[E0015]: cannot call non-const closure in constant functions - --> $DIR/const-closure-trait-method.rs:15:5 +error: ~const can only be applied to `#[const_trait]` traits + --> $DIR/const-closure-trait-method.rs:14:39 | -LL | x(()) - | ^^^^^ - | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants -help: consider further restricting this bound - | -LL | const fn need_const_closure<T: ~const FnOnce(()) -> i32 + ~const std::ops::FnOnce<((),)>>(x: T) -> i32 { - | ++++++++++++++++++++++++++++++++ +LL | const fn need_const_closure<T: ~const FnOnce(()) -> i32>(x: T) -> i32 { + | ^^^^^^^^^^^^^^^^^ error: aborting due to previous error -For more information about this error, try `rustc --explain E0015`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closures.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closures.stderr index abf2a2dc5..6d61b23e4 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closures.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/const-closures.stderr @@ -1,39 +1,26 @@ -error[E0015]: cannot call non-const closure in constant functions - --> $DIR/const-closures.rs:12:5 +error: ~const can only be applied to `#[const_trait]` traits + --> $DIR/const-closures.rs:8:19 | -LL | f() * 7 - | ^^^ - | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants -help: consider further restricting this bound - | -LL | F: ~const FnOnce() -> u8 + ~const std::ops::Fn<()>, - | +++++++++++++++++++++++++ +LL | F: ~const FnOnce() -> u8, + | ^^^^^^^^^^^^^^ -error[E0015]: cannot call non-const closure in constant functions - --> $DIR/const-closures.rs:24:5 - | -LL | f() + f() - | ^^^ +error: ~const can only be applied to `#[const_trait]` traits + --> $DIR/const-closures.rs:9:19 | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants -help: consider further restricting this bound - | -LL | const fn answer<F: ~const Fn() -> u8 + ~const std::ops::Fn<()>>(f: &F) -> u8 { - | +++++++++++++++++++++++++ +LL | F: ~const FnMut() -> u8, + | ^^^^^^^^^^^^^ -error[E0015]: cannot call non-const closure in constant functions - --> $DIR/const-closures.rs:24:11 - | -LL | f() + f() - | ^^^ +error: ~const can only be applied to `#[const_trait]` traits + --> $DIR/const-closures.rs:10:19 | - = note: calls in constant functions are limited to constant functions, tuple structs and tuple variants -help: consider further restricting this bound +LL | F: ~const Fn() -> u8, + | ^^^^^^^^^^ + +error: ~const can only be applied to `#[const_trait]` traits + --> $DIR/const-closures.rs:23:27 | -LL | const fn answer<F: ~const Fn() -> u8 + ~const std::ops::Fn<()>>(f: &F) -> u8 { - | +++++++++++++++++++++++++ +LL | const fn answer<F: ~const Fn() -> u8>(f: &F) -> u8 { + | ^^^^^^^^^^ -error: aborting due to 3 previous errors +error: aborting due to 4 previous errors -For more information about this error, try `rustc --explain E0015`. diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/fallback.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/fallback.rs new file mode 100644 index 000000000..da2778f61 --- /dev/null +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/fallback.rs @@ -0,0 +1,16 @@ +// check-pass + +#![feature(effects)] + +pub const fn owo() {} + +fn main() { + // make sure falling back ty/int vars doesn't cause const fallback to be skipped... + // See issue: 115791. + let _ = 1; + if false { + let x = panic!(); + } + + let _ = owo; +} diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/infer-fallback.rs b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/infer-fallback.rs new file mode 100644 index 000000000..2f474d978 --- /dev/null +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/effects/infer-fallback.rs @@ -0,0 +1,11 @@ +// check-pass +#![feature(const_trait_impl, effects)] + +const fn a() {} + +fn foo<F: FnOnce()>(a: F) {} + +fn main() { + let _ = a; + foo(a); +} diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-where-clause-const.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-where-clause-const.stderr index e8d0eec02..c94563d35 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-where-clause-const.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-where-clause-const.stderr @@ -2,7 +2,7 @@ error[E0277]: the trait bound `T: ~const Bar` is not satisfied --> $DIR/trait-where-clause-const.rs:21:5 | LL | T::b(); - | ^^^^ the trait `Bar` is not implemented for `T` + | ^ the trait `Bar` is not implemented for `T` | note: required by a bound in `Foo::b` --> $DIR/trait-where-clause-const.rs:15:24 diff --git a/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-where-clause.stderr b/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-where-clause.stderr index 11f0c4016..255878e17 100644 --- a/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-where-clause.stderr +++ b/tests/ui/rfcs/rfc-2632-const-trait-impl/trait-where-clause.stderr @@ -2,7 +2,7 @@ error[E0277]: the trait bound `T: Bar` is not satisfied --> $DIR/trait-where-clause.rs:14:5 | LL | T::b(); - | ^^^^ the trait `Bar` is not implemented for `T` + | ^ the trait `Bar` is not implemented for `T` | note: required by a bound in `Foo::b` --> $DIR/trait-where-clause.rs:8:24 |