New upstream version 1.48.0~beta.8+dfsg1

[rustc.git] / src / test / ui / rfc-2497-if-let-chains / disallowed-positions.stderr

error: expected one of `,` or `>`, found `&&`
  --> $DIR/disallowed-positions.rs:236:14
   |
LL |         true && let 1 = 1
   |              ^^ expected one of `,` or `>`

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:32:9
   |
LL |     if &let 0 = 0 {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:35:9
   |
LL |     if !let 0 = 0 {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:36:9
   |
LL |     if *let 0 = 0 {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:38:9
   |
LL |     if -let 0 = 0 {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:46:9
   |
LL |     if (let 0 = 0)? {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:50:16
   |
LL |     if true || let 0 = 0 {}
   |                ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:51:17
   |
LL |     if (true || let 0 = 0) {}
   |                 ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:52:25
   |
LL |     if true && (true || let 0 = 0) {}
   |                         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:53:25
   |
LL |     if true || (true && let 0 = 0) {}
   |                         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:56:12
   |
LL |     if x = let 0 = 0 {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:59:15
   |
LL |     if true..(let 0 = 0) {}
   |               ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:61:11
   |
LL |     if ..(let 0 = 0) {}
   |           ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:63:9
   |
LL |     if (let 0 = 0).. {}
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:67:8
   |
LL |     if let Range { start: _, end: _ } = true..true && false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:71:8
   |
LL |     if let Range { start: _, end: _ } = true..true || false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:78:8
   |
LL |     if let Range { start: F, end } = F..|| true {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:86:8
   |
LL |     if let Range { start: true, end } = t..&&false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:92:19
   |
LL |     if let true = let true = true {}
   |                   ^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:96:12
   |
LL |     while &let 0 = 0 {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:99:12
   |
LL |     while !let 0 = 0 {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:100:12
   |
LL |     while *let 0 = 0 {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:102:12
   |
LL |     while -let 0 = 0 {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:110:12
   |
LL |     while (let 0 = 0)? {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:114:19
   |
LL |     while true || let 0 = 0 {}
   |                   ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:115:20
   |
LL |     while (true || let 0 = 0) {}
   |                    ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:116:28
   |
LL |     while true && (true || let 0 = 0) {}
   |                            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:117:28
   |
LL |     while true || (true && let 0 = 0) {}
   |                            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:120:15
   |
LL |     while x = let 0 = 0 {}
   |               ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:123:18
   |
LL |     while true..(let 0 = 0) {}
   |                  ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:125:14
   |
LL |     while ..(let 0 = 0) {}
   |              ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:127:12
   |
LL |     while (let 0 = 0).. {}
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:131:11
   |
LL |     while let Range { start: _, end: _ } = true..true && false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:135:11
   |
LL |     while let Range { start: _, end: _ } = true..true || false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:142:11
   |
LL |     while let Range { start: F, end } = F..|| true {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:150:11
   |
LL |     while let Range { start: true, end } = t..&&false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:156:22
   |
LL |     while let true = let true = true {}
   |                      ^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:170:6
   |
LL |     &let 0 = 0;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:172:6
   |
LL |     !let 0 = 0;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:173:6
   |
LL |     *let 0 = 0;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:175:6
   |
LL |     -let 0 = 0;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:183:6
   |
LL |     (let 0 = 0)?;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:187:13
   |
LL |     true || let 0 = 0;
   |             ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:188:14
   |
LL |     (true || let 0 = 0);
   |              ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:189:22
   |
LL |     true && (true || let 0 = 0);
   |                      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:192:9
   |
LL |     x = let 0 = 0;
   |         ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:194:12
   |
LL |     true..(let 0 = 0);
   |            ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:195:8
   |
LL |     ..(let 0 = 0);
   |        ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:196:6
   |
LL |     (let 0 = 0)..;
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:198:6
   |
LL |     (let Range { start: _, end: _ } = true..true || false);
   |      ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:202:6
   |
LL |     (let true = let true = true);
   |      ^^^^^^^^^^^^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:202:17
   |
LL |     (let true = let true = true);
   |                 ^^^^^^^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:207:6
   |
LL |     &let 0 = 0
   |      ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:218:17
   |
LL |         true && let 1 = 1
   |                 ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:222:17
   |
LL |         true && let 1 = 1
   |                 ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

error: `let` expressions are not supported here
  --> $DIR/disallowed-positions.rs:226:17
   |
LL |         true && let 1 = 1
   |                 ^^^^^^^^^
   |
   = note: only supported directly in conditions of `if`- and `while`-expressions
   = note: as well as when nested within `&&` and parenthesis in those conditions

warning: the feature `const_generics` is incomplete and may not be safe to use and/or cause compiler crashes
  --> $DIR/disallowed-positions.rs:20:12
   |
LL | #![feature(const_generics)]
   |            ^^^^^^^^^^^^^^
   |
   = note: `#[warn(incomplete_features)]` on by default
   = note: see issue #44580 <https://github.com/rust-lang/rust/issues/44580> for more information

warning: the feature `let_chains` is incomplete and may not be safe to use and/or cause compiler crashes
  --> $DIR/disallowed-positions.rs:22:12
   |
LL | #![feature(let_chains)] // Avoid inflating `.stderr` with overzealous gates in this test.
   |            ^^^^^^^^^^
   |
   = note: see issue #53667 <https://github.com/rust-lang/rust/issues/53667> for more information

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:32:8
   |
LL |     if &let 0 = 0 {}
   |        ^^^^^^^^^^
   |        |
   |        expected `bool`, found `&bool`
   |        help: consider removing the borrow: `let 0 = 0`

error[E0614]: type `bool` cannot be dereferenced
  --> $DIR/disallowed-positions.rs:36:8
   |
LL |     if *let 0 = 0 {}
   |        ^^^^^^^^^^

error[E0600]: cannot apply unary operator `-` to type `bool`
  --> $DIR/disallowed-positions.rs:38:8
   |
LL |     if -let 0 = 0 {}
   |        ^^^^^^^^^^ cannot apply unary operator `-`

error[E0277]: the `?` operator can only be applied to values that implement `Try`
  --> $DIR/disallowed-positions.rs:46:8
   |
LL |     if (let 0 = 0)? {}
   |        ^^^^^^^^^^^^ the `?` operator cannot be applied to type `bool`
   |
   = help: the trait `Try` is not implemented for `bool`
   = note: required by `into_result`

error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `Try`)
  --> $DIR/disallowed-positions.rs:46:8
   |
LL | / fn nested_within_if_expr() {
LL | |     if &let 0 = 0 {}
LL | |
LL | |
...  |
LL | |     if (let 0 = 0)? {}
   | |        ^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
...  |
LL | |     if let true = let true = true {}
LL | | }
   | |_- this function should return `Result` or `Option` to accept `?`
   |
   = help: the trait `Try` is not implemented for `()`
   = note: required by `from_error`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:56:8
   |
LL |     if x = let 0 = 0 {}
   |        ^^^^^^^^^^^^^ expected `bool`, found `()`
   |
help: you might have meant to compare for equality
   |
LL |     if x == let 0 = 0 {}
   |          ^^

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:59:8
   |
LL |     if true..(let 0 = 0) {}
   |        ^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:61:8
   |
LL |     if ..(let 0 = 0) {}
   |        ^^^^^^^^^^^^^ expected `bool`, found struct `RangeTo`
   |
   = note: expected type `bool`
            found struct `RangeTo<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:63:8
   |
LL |     if (let 0 = 0).. {}
   |        ^^^^^^^^^^^^^ expected `bool`, found struct `RangeFrom`
   |
   = note: expected type `bool`
            found struct `RangeFrom<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:67:12
   |
LL |     if let Range { start: _, end: _ } = true..true && false {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^   ---- this expression has type `bool`
   |            |
   |            expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:67:8
   |
LL |     if let Range { start: _, end: _ } = true..true && false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:71:12
   |
LL |     if let Range { start: _, end: _ } = true..true || false {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^   ---- this expression has type `bool`
   |            |
   |            expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:71:8
   |
LL |     if let Range { start: _, end: _ } = true..true || false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:78:12
   |
LL |     if let Range { start: F, end } = F..|| true {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^ expected fn pointer, found struct `std::ops::Range`
   |
   = note: expected fn pointer `fn() -> bool`
                  found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:78:41
   |
LL |     if let Range { start: F, end } = F..|| true {}
   |                                         ^^^^^^^ expected `bool`, found closure
   |
   = note: expected type `bool`
           found closure `[closure@$DIR/disallowed-positions.rs:78:41: 78:48]`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:78:8
   |
LL |     if let Range { start: F, end } = F..|| true {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:86:12
   |
LL |     if let Range { start: true, end } = t..&&false {}
   |            ^^^^^^^^^^^^^^^^^^^^^^^^^^   - this expression has type `&&bool`
   |            |
   |            expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:86:44
   |
LL |     if let Range { start: true, end } = t..&&false {}
   |                                            ^^^^^^^ expected `bool`, found `&&bool`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:86:8
   |
LL |     if let Range { start: true, end } = t..&&false {}
   |        ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = 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:42:20
   |
LL |         if let 0 = 0? {}
   |                    ^^ the `?` operator cannot be applied to type `{integer}`
   |
   = help: the trait `Try` is not implemented for `{integer}`
   = note: required by `into_result`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:96:11
   |
LL |     while &let 0 = 0 {}
   |           ^^^^^^^^^^
   |           |
   |           expected `bool`, found `&bool`
   |           help: consider removing the borrow: `let 0 = 0`

error[E0614]: type `bool` cannot be dereferenced
  --> $DIR/disallowed-positions.rs:100:11
   |
LL |     while *let 0 = 0 {}
   |           ^^^^^^^^^^

error[E0600]: cannot apply unary operator `-` to type `bool`
  --> $DIR/disallowed-positions.rs:102:11
   |
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:110:11
   |
LL |     while (let 0 = 0)? {}
   |           ^^^^^^^^^^^^ the `?` operator cannot be applied to type `bool`
   |
   = help: the trait `Try` is not implemented for `bool`
   = note: required by `into_result`

error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `Try`)
  --> $DIR/disallowed-positions.rs:110:11
   |
LL | / fn nested_within_while_expr() {
LL | |     while &let 0 = 0 {}
LL | |
LL | |
...  |
LL | |     while (let 0 = 0)? {}
   | |           ^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
...  |
LL | |     while let true = let true = true {}
LL | | }
   | |_- this function should return `Result` or `Option` to accept `?`
   |
   = help: the trait `Try` is not implemented for `()`
   = note: required by `from_error`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:120:11
   |
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:123:11
   |
LL |     while true..(let 0 = 0) {}
   |           ^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:125:11
   |
LL |     while ..(let 0 = 0) {}
   |           ^^^^^^^^^^^^^ expected `bool`, found struct `RangeTo`
   |
   = note: expected type `bool`
            found struct `RangeTo<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:127:11
   |
LL |     while (let 0 = 0).. {}
   |           ^^^^^^^^^^^^^ expected `bool`, found struct `RangeFrom`
   |
   = note: expected type `bool`
            found struct `RangeFrom<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:131:15
   |
LL |     while let Range { start: _, end: _ } = true..true && false {}
   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^   ---- this expression has type `bool`
   |               |
   |               expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:131:11
   |
LL |     while let Range { start: _, end: _ } = true..true && false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:135:15
   |
LL |     while let Range { start: _, end: _ } = true..true || false {}
   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^   ---- this expression has type `bool`
   |               |
   |               expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:135:11
   |
LL |     while let Range { start: _, end: _ } = true..true || false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:142:15
   |
LL |     while let Range { start: F, end } = F..|| true {}
   |               ^^^^^^^^^^^^^^^^^^^^^^^ expected fn pointer, found struct `std::ops::Range`
   |
   = note: expected fn pointer `fn() -> bool`
                  found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:142:44
   |
LL |     while let Range { start: F, end } = F..|| true {}
   |                                            ^^^^^^^ expected `bool`, found closure
   |
   = note: expected type `bool`
           found closure `[closure@$DIR/disallowed-positions.rs:142:44: 142:51]`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:142:11
   |
LL |     while let Range { start: F, end } = F..|| true {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<bool>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:150:15
   |
LL |     while let Range { start: true, end } = t..&&false {}
   |               ^^^^^^^^^^^^^^^^^^^^^^^^^^   - this expression has type `&&bool`
   |               |
   |               expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:150:47
   |
LL |     while let Range { start: true, end } = t..&&false {}
   |                                               ^^^^^^^ expected `bool`, found `&&bool`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:150:11
   |
LL |     while let Range { start: true, end } = t..&&false {}
   |           ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ expected `bool`, found struct `std::ops::Range`
   |
   = 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:106:23
   |
LL |         while let 0 = 0? {}
   |                       ^^ the `?` operator cannot be applied to type `{integer}`
   |
   = help: the trait `Try` is not implemented for `{integer}`
   = note: required by `into_result`

error[E0614]: type `bool` cannot be dereferenced
  --> $DIR/disallowed-positions.rs:173:5
   |
LL |     *let 0 = 0;
   |     ^^^^^^^^^^

error[E0600]: cannot apply unary operator `-` to type `bool`
  --> $DIR/disallowed-positions.rs:175:5
   |
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:183:5
   |
LL |     (let 0 = 0)?;
   |     ^^^^^^^^^^^^ the `?` operator cannot be applied to type `bool`
   |
   = help: the trait `Try` is not implemented for `bool`
   = note: required by `into_result`

error[E0277]: the `?` operator can only be used in a function that returns `Result` or `Option` (or another type that implements `Try`)
  --> $DIR/disallowed-positions.rs:183:5
   |
LL | / fn outside_if_and_while_expr() {
LL | |     &let 0 = 0;
LL | |
LL | |     !let 0 = 0;
...  |
LL | |     (let 0 = 0)?;
   | |     ^^^^^^^^^^^^ cannot use the `?` operator in a function that returns `()`
...  |
LL | |
LL | | }
   | |_- this function should return `Result` or `Option` to accept `?`
   |
   = help: the trait `Try` is not implemented for `()`
   = note: required by `from_error`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:198:10
   |
LL |     (let Range { start: _, end: _ } = true..true || false);
   |          ^^^^^^^^^^^^^^^^^^^^^^^^^^   ---- this expression has type `bool`
   |          |
   |          expected `bool`, found struct `std::ops::Range`
   |
   = note: expected type `bool`
            found struct `std::ops::Range<_>`

error[E0308]: mismatched types
  --> $DIR/disallowed-positions.rs:207:5
   |
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:179:17
   |
LL |         let 0 = 0?;
   |                 ^^ the `?` operator cannot be applied to type `{integer}`
   |
   = help: the trait `Try` is not implemented for `{integer}`
   = note: required by `into_result`

error: aborting due to 103 previous errors; 2 warnings emitted

Some errors have detailed explanations: E0277, E0308, E0600, E0614.
For more information about an error, try `rustc --explain E0277`.