rust/tests/source/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 {
    }
}

fn ranges() {
    let x = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa .. bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;
    let y = aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa ... bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb;
    let z = ... x ;
    let infi_range_2 = ... ;

    a ... b

    // the expr below won't compile for some reason...
    // let a = 0 ... ;
}