rust/tests/target/expr.rs

// rustfmt-wrap_comments: true
// Test expressions

fn foo() -> bool {
    let boxed: Box<i32> = box 5;
    let referenced = &5;

    let very_long_variable_name = (a + first + simple + test);
    let very_long_variable_name = (a + first + simple + test + AAAAAAAAAAAAA +
                                   BBBBBBBBBBBBBBBBB + b + c);

    let is_internalxxxx = self.codemap.span_to_filename(s) ==
                          self.codemap.span_to_filename(m.inner);

    let some_val = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa * bbbb /
                   (bbbbbb - function_call(x, *very_long_pointer, y)) + 1000;

    some_ridiculously_loooooooooooooooooooooong_function(10000 * 30000000000 +
                                                         40000 / 1002200000000 -
                                                         50000 * sqrt(-1),
                                                         trivial_value);
    (((((((((aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
             a +
             aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
             aaaaa)))))))));

    {
        for _ in 0..10 {}
    }

    {
        {
            {
                {}
            }
        }
    }

    if 1 + 2 > 0 {
        let result = 5;
        result
    } else {
        4
    };

    if let Some(x) = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa {
        // Nothing
    }

    if let Some(x) = (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
                      aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa) {}

    if let (some_very_large,
            tuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuple) = 1 + 2 + 3 {
    }

    if let (some_very_large,
            tuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuple) = 1111 +
                                                                                         2222 {}

    if let (some_very_large,
            tuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuple) = 1 + 2 + 3 {
    }

    let test = if true {
        5
    } else {
        3
    };

    if cond() {
        something();
    } else if different_cond() {
        something_else();
    } else {
        // Check subformatting
        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
        aaaaaaaaaaaaaaaaaaaaaaaaaaaaaa
    }
}

fn bar() {
    let range = (111111111 + 333333333333333333 + 1111 + 400000000000000000)..(2222 +
                                                                               2333333333333333);

    let another_range = 5..some_func(a, b /* comment */);

    for _ in 1.. {
        call_forever();
    }

    syntactically_correct(loop {
                              sup('?');
                          },
                          if cond {
                              0
                          } else {
                              1
                          });

    let third = ..10;
    let infi_range = ..;
    let foo = 1..;
    let bar = 5;
    let nonsense = (10..0)..(0..10);

    loop {
        if true {
            break;
        }
    }

    let x = (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa && aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa,
             a);
}

fn baz() {
    unsafe /* {}{}{}{{{{}} */ {
        let foo = 1u32;
    }

    unsafe /* very looooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooooong
            * comment */ {
    }

    unsafe /* So this is a very long comment.
            * Multi-line, too.
            * Will it still format correctly? */ {
    }

    unsafe {
        // Regular unsafe block
    }

    unsafe { foo() }

    unsafe {
        foo();
    }
}

// Test some empty blocks.
fn qux() {
    {}
    // FIXME this one could be done better.
    {
        // a block with a comment
    }
    {

    }
    {
        // A block with a comment.
    }
}

fn issue227() {
    {
        let handler = box DocumentProgressHandler::new(addr,
                                                       DocumentProgressTask::DOMContentLoaded);
    }
}

fn issue184(source: &str) {
    for c in source.chars() {
        if index < 'a' {
            continue;
        }
    }
}

fn arrays() {
    let x = [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 0, 7, 8, 9, 0, 1, 2, 3,
             4, 5, 6, 7, 8, 9, 0];

    let y = [// comment
             1,
             2, // post comment
             3];

    let xy = [strukt {
                  test123: value_one_two_three_four,
                  turbo: coolio(),
              },
              // comment
              1];

    let a = WeightedChoice::new(&mut [Weighted {
                                          weight: x,
                                          item: 0,
                                      },
                                      Weighted {
                                          weight: 1,
                                          item: 1,
                                      },
                                      Weighted {
                                          weight: x,
                                          item: 2,
                                      },
                                      Weighted {
                                          weight: 1,
                                          item: 3,
                                      }]);

    let z = [xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx,
             yyyyyyyyyyyyyyyyyyyyyyyyyyy,
             zzzzzzzzzzzzzzzzzz,
             q];

    [1 + 3, 4, 5, 6, 7, 7, fncall::<Vec<_>>(3 - 1)]
}

fn returns() {
    aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa &&
    return;

    return aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
           aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa;
}

fn addrof() {
    &mut (aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
          bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);
    &(aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa +
      bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb);
}

fn casts() {
    fn unpack(packed: u32) -> [u16; 2] {
        [(packed >> 16) as u16, (packed >> 0) as u16]
    }

    let some_trait_xxx = xxxxxxxxxxx + xxxxxxxxxxxxx as SomeTraitXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX;
    let slightly_longer_trait = yyyyyyyyy +
                                yyyyyyyyyyy as SomeTraitYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYYY;
}

fn indices() {
    let x = (aaaaaaaaaaaaaaaaaaaaaaaaaaaa + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb + cccccccccccccccc)[x +
                                                                                                y +
                                                                                                z];
    let y = (aaaaaaaaaaaaaaaaaaaaaaaaaaaa + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +
             cccccccccccccccc)[xxxxx + yyyyy + zzzzz];
}

fn repeats() {
    let x = [aaaaaaaaaaaaaaaaaaaaaaaaaaaa + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb + cccccccccccccccc; x +
                                                                                                y +
                                                                                                z];
    let y = [aaaaaaaaaaaaaaaaaaaaaaaaaaaa + bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb +
             cccccccccccccccc; xxxxx + yyyyy + zzzzz];
}

fn blocks() {
    if 1 + 1 == 2 {
        println!("yay arithmetix!");
    };
}

fn issue767() {
    if false {
        if false {
        } else {
            // A let binding here seems necessary to trigger it.
            let _ = ();
        }
    } else if let false = false {
    }
}