src/tools/rustfmt/tests/source/macros.rs

// rustfmt-normalize_comments: true
// rustfmt-format_macro_matchers: true
itemmacro!(this, is.now() .formatted(yay));

itemmacro!(really, long.aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaabbb() .is.formatted());

itemmacro!{this, is.brace().formatted()}

fn main() {
    foo! ( );

    foo!(,);

    bar!( a , b , c );

    bar!( a , b , c , );

    baz!(1+2+3, quux. kaas());

    quux!(AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA, BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB);

    kaas!(/* comments */ a /* post macro */, b /* another */);

    trailingcomma!( a , b , c , );
    // Preserve trailing comma only when necessary.
    ok!(file.seek(
        SeekFrom::Start(
            table.map(|table| fixture.offset(table)).unwrap_or(0),
        )
    ));

    noexpr!( i am not an expression, OK? );

    vec! [ a , b , c];

    vec! [AAAAAA, AAAAAA, AAAAAA, AAAAAA, AAAAAA, AAAAAA, AAAAAA, AAAAAA, AAAAAA,
          BBBBB, 5, 100-30, 1.33, b, b, b];

    vec! [a /* comment */];

    // Trailing spaces after a comma
    vec![
    a,   
    ];
    
    vec![a; b];
    vec!(a; b);
    vec!{a; b};

    vec![a, b; c];
    vec![a; b, c];

    vec![a; (|x| { let y = x + 1; let z = y + 1; z })(2)];
    vec![a; xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx];
    vec![a; unsafe {
        x + 1
    }];

    unknown_bracket_macro__comma_should_not_be_stripped![
    a,
    ];
    
    foo(makro!(1,   3));

    hamkaas!{ () };

    macrowithbraces! {dont,    format, me}

    x!(fn);

    some_macro!(
        
    );

    some_macro![
    ];

    some_macro!{
        // comment
    };

    some_macro!{
        // comment
    };

    some_macro!(
        // comment
        not function like
    );

    // #1712
    let image = gray_image!(
        00, 01, 02;
        10, 11, 12;
        20, 21, 22);

    // #1092
    chain!(input, a:take!(max_size), || []);

    // #2727
    foo!("bar")
;
}

impl X {
    empty_invoc!{}
    empty_invoc! {}
}

fn issue_1279() {
    println!("dsfs"); // a comment
}

fn issue_1555() {
    let hello = &format!("HTTP/1.1 200 OK\r\nServer: {}\r\n\r\n{}",
                         "65454654654654654654654655464",
                         "4");
}

fn issue1178() {
    macro_rules! foo {
        (#[$attr:meta] $name:ident) => {}
    }

    foo!(#[doc = "bar"] baz);
}

fn issue1739() {
    sql_function!(add_rss_item,
                  add_rss_item_t,
                  (a: types::Integer,
                   b: types::Timestamptz,
                   c: types::Text,
                   d: types::Text,
                   e: types::Text));

    w.slice_mut(s![.., init_size[1] - extreeeeeeeeeeeeeeeeeeeeeeeem..init_size[1], ..])
        .par_map_inplace(|el| *el = 0.);
}

fn issue_1885() {
    let threads = people.into_iter().map(|name| {
        chan_select! {
            rx.recv() => {}
        }
    }).collect::<Vec<_>>();
}

fn issue_1917() {
    mod x {
        quickcheck! {
            fn test(a: String, s: String, b: String) -> TestResult {
                if a.find(&s).is_none() {

                    TestResult::from_bool(true)
                } else {
                    TestResult::discard()
                }
            }
        }
    }
}

fn issue_1921() {
    // Macro with tabs.
    lazy_static! {
	static ref ONE: u32 = 1;
	static ref TWO: u32 = 2;
	static ref THREE: u32 = 3;
	static ref FOUR: u32 = {
		let mut acc = 1;
		acc += 1;
		acc += 2;
		acc
	}
}
}

// #1577
fn issue1577() {
    let json = json!({
        "foo": "bar",
    });
}

// #3174
fn issue_3174() {
    let data =
        if let Some(debug) = error.debug_info() {
            json!({
                "errorKind": format!("{:?}", error.err_kind()),
                "debugMessage": debug.message,
            })
        } else {
            json!({"errorKind": format!("{:?}", error.err_kind())})
        };
}

gfx_pipeline!(pipe {
    vbuf: gfx::VertexBuffer<Vertex> = (),
    out: gfx::RenderTarget<ColorFormat> = "Target0",
});

// #1919
#[test]
fn __bindgen_test_layout_HandleWithDtor_open0_int_close0_instantiation() {
    assert_eq!(
        ::std::mem::size_of::<HandleWithDtor<::std::os::raw::c_int>>(),
        8usize,
        concat!(
            "Size of template specialization: ",
            stringify ! ( HandleWithDtor < :: std :: os :: raw :: c_int > )
        )
    );
    assert_eq ! ( :: std :: mem :: align_of :: < HandleWithDtor < :: std :: os :: raw :: c_int > > ( ) , 8usize , concat ! ( "Alignment of template specialization: " , stringify ! ( HandleWithDtor < :: std :: os :: raw :: c_int > ) ) );
}

// #878
macro_rules! try_opt {
    ($expr:expr) => (match $expr {  
        Some(val) => val,
          
        None => { return None; }
    })
}

// #2214
// macro call whose argument is an array with trailing comma.
fn issue2214() {
make_test!(str_searcher_ascii_haystack, "bb", "abbcbbd", [
    Reject(0, 1),
    Match (1, 3),
    Reject(3, 4),
    Match (4, 6),
    Reject(6, 7),
]);
}

fn special_case_macros() {
    let p = eprint!();
    let q = eprint!("{}", 1);
    let r = eprint!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    let s = eprint!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    let q = eprintln!("{}", 1);
    let r = eprintln!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    let s = eprintln!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    let q = format!("{}", 1);
    let r = format!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    let s = format!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    let q = format_args!("{}", 1);
    let r = format_args!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    let s = format_args!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    let q = print!("{}", 1);
    let r = print!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    let s = print!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    let q = println!("{}", 1);
    let r = println!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    let s = println!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    let q = unreachable!("{}", 1);
    let r = unreachable!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    let s = unreachable!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    debug!("{}", 1);
    debug!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    debug!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    error!("{}", 1);
    error!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    error!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    info!("{}", 1);
    info!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    info!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    panic!("{}", 1);
    panic!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    panic!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    warn!("{}", 1);
    warn!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15);
    warn!("{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    assert!();
    assert!(result == 42);
    assert!(result == 42, "Ahoy there, {}!", target);
    assert!(result == 42, "Arr! While plunderin' the hold, we got '{}' when given '{}' (we expected '{}')", result, input, expected);
    assert!(result == 42, "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    assert_eq!();
    assert_eq!(left);
    assert_eq!(left, right);
    assert_eq!(left, right, "Ahoy there, {}!", target);
    assert_eq!(left, right, "Arr! While plunderin' the hold, we got '{}' when given '{}' (we expected '{}')", result, input, expected);
    assert_eq!(first_realllllllllllly_long_variable_that_doesnt_fit_one_one_line, second_reallllllllllly_long_variable_that_doesnt_fit_one_one_line, "Arr! While plunderin' the hold, we got '{}' when given '{}' (we expected '{}')", result, input, expected);
    assert_eq!(left + 42, right, "Arr! While plunderin' the hold, we got '{}' when given '{}' (we expected '{}')", result, input, expected);
    assert_eq!(left, right, "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    write!(&mut s, "Ahoy there, {}!", target);
    write!(&mut s, "Arr! While plunderin' the hold, we got '{}' when given '{}' (we expected '{}')", result, input, expected);
    write!(&mut s, "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);

    writeln!(&mut s, "Ahoy there, {}!", target);
    writeln!(&mut s, "Arr! While plunderin' the hold, we got '{}' when given '{}' (we expected '{}')", result, input, expected);
    writeln!(&mut s, "{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}{}", 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26);
}

// #1209
impl Foo {
    /// foo
    pub fn foo(&self) -> Bar<foo!(   )> {}
}

// #819
fn macro_in_pattern_position () {
    let x = match y {
        foo!(  ) => (),
        bar!(            a, b,
                         c) => (),
        bar!(a
             , b
             , c
             ,) => (),
        baz!( 1 + 2 + 3, quux.kaas(  )
        ) => (),
        quux!(AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA, BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBB) => (),
    };
}

macro foo() {


}

pub macro bar($x:ident+$y:expr; ) {
    fn foo($x: Foo) {
    long_function(a_long_argument_to_a_long_function_is_what_this_is(AAAAAAAAAAAAAAAAAAAAAAAAAAAA),
                  $x.bar($y));
    }
}

macro foo() {
  // a comment
  fn foo() {
  // another comment
  bar();
  }
}

// #2574
macro_rules! test {
    () => {{}}
}

macro lex_err($kind: ident $(, $body: expr)*) {
    Err(QlError::LexError(LexError::$kind($($body,)*)))
}

// Preserve trailing comma on item-level macro with `()` or `[]`.
methods![ get, post, delete, ];
methods!( get, post, delete, );

// #2588
macro_rules! m {
    () => {
        r#"
            test
        "#
    };
}
fn foo() {
    f!{r#"
            test
       "#};
}

// #2591
fn foo() {
    match 0u32 {
        0 => (),
        _ => unreachable!(/* obviously */),
    }
}

fn foo() {
    let _ = column!(/* here */);
}

// #2616
// Preserve trailing comma when using mixed layout for macro call.
fn foo() {
    foo!(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1);
    foo!(1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,);
}

// #2830
// Preserve trailing comma-less/ness inside nested macro.
named!(
    do_parse_gsv<GsvData>,
    map_res!(
        do_parse!(
            number_of_sentences: map_res!(digit, parse_num::<u16>)
                >> char!(',')
                >> sentence_index: map_res!(digit, parse_num::<u16>)
                >> char!(',')
                >> total_number_of_sats: map_res!(digit, parse_num::<u16>)
                >> char!(',')
                >> sat0: opt!(complete!(parse_gsv_sat_info))
                >> sat1: opt!(complete!(parse_gsv_sat_info))
                >> sat2: opt!(complete!(parse_gsv_sat_info))
                >> sat3: opt!(complete!(parse_gsv_sat_info))
                >> (
                    number_of_sentences,
                    sentence_index,
                    total_number_of_sats,
                    sat0,
                    sat1,
                    sat2,
                    sat3
                )
        ),
        construct_gsv_data
    )
);

// #2857
convert_args!(vec!(1, 2, 3));

// #3031
thread_local!(
/// TLV Holds a set of JSTraceables that need to be rooted
    static ROOTED_TRACEABLES: RefCell<RootedTraceableSet> =
        RefCell::new(RootedTraceableSet::new()) ;
) ;

thread_local![
    /// TLV Holds a set of JSTraceables that need to be rooted
    static ROOTED_TRACEABLES: RefCell<RootedTraceableSet> =
        RefCell::new(RootedTraceableSet::new()) ;

    /// TLV Holds a set of JSTraceables that need to be rooted
    static ROOTED_TRACEABLES: RefCell<RootedTraceableSet> =
        RefCell::new(RootedTraceableSet::new(0)) ;

    /// TLV Holds a set of JSTraceables that need to be rooted
    static ROOTED_TRACEABLES: RefCell<RootedTraceableSet> =
        RefCell::new(RootedTraceableSet::new(), xxx, yyy) ;

    /// TLV Holds a set of JSTraceables that need to be rooted
static ROOTED_TRACEABLES: RefCell<RootedTraceableSet> =
        RefCell::new(RootedTraceableSet::new(1234)) ;

] ;

fn issue3004() {
    foo!(|_| { (  ) });
    stringify!(( foo+ ));
}

// #3331
pub fn fold_abi<V: Fold + ?Sized>(_visitor: &mut V, _i: Abi) -> Abi {
    Abi {
        extern_token: Token ! [ extern ](tokens_helper(_visitor, &_i.extern_token.span)),
        name: (_i.name).map(|it| _visitor.fold_lit_str(it)),
    }
}

// #3463
x ! {()}

// #3746
f!(match a {
    4 =>
        &[
            (3, false), // Missing
            (4, true)   // I-frame
        ]  [..],
});

// #3583
foo!(|x = y|);