rust/tests/source/chains.rs

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// rustfmt-normalize_comments: true
// rustfmt-single_line_if_else_max_width: 0
// rustfmt-chain_width: 100
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// Test chain formatting.
fn main() {
let a = b .c
.d.1
.foo(|x| x + 1);
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bbbbbbbbbbbbbbbbbbb.ccccccccccccccccccccccccccccccccccccc
.ddddddddddddddddddddddddddd();
bbbbbbbbbbbbbbbbbbb.ccccccccccccccccccccccccccccccccccccc.ddddddddddddddddddddddddddd.eeeeeeee();
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let f = fooooooooooooooooooooooooooooooooooooooooooooooooooo.baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaar;
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// Test case where first chain element isn't a path, but is shorter than
// the size of a tab.
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x()
.y(|| match cond() { true => (), false => () });
loong_func()
.quux(move || if true {
1
} else {
2
});
some_fuuuuuuuuunction()
.method_call_a(aaaaa, bbbbb, |c| {
let x = c;
x
});
some_fuuuuuuuuunction().method_call_a(aaaaa, bbbbb, |c| {
let x = c;
x
}).method_call_b(aaaaa, bbbbb, |c| {
let x = c;
x
});
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fffffffffffffffffffffffffffffffffff(a,
{
SCRIPT_TASK_ROOT
.with(|root| {
*root.borrow_mut() = Some(&script_task);
});
});
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let suuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuum = xxxxxxx
.map(|x| x + 5)
.map(|x| x / 2)
.fold(0, |acc, x| acc + x);
aaaaaaaaaaaaaaaa.map(|x| {
x += 1;
x
}).filter(some_mod::some_filter)
}
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fn floaters() {
let z = Foo {
field1: val1,
field2: val2,
};
let x = Foo {
field1: val1,
field2: val2,
}.method_call().method_call();
let y = if cond {
val1
} else {
val2
}
.method_call();
{
match x {
PushParam => {
// params are 1-indexed
stack.push(mparams[match cur.to_digit(10) {
Some(d) => d as usize - 1,
None => return Err("bad param number".to_owned()),
}]
.clone());
}
}
}
if cond { some(); } else { none(); }
.bar()
.baz();
Foo { x: val } .baz(|| { force(); multiline(); }) .quux();
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Foo { y: i_am_multi_line, z: ok }
.baz(|| {
force(); multiline();
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})
.quux();
a + match x { true => "yay!", false => "boo!" }.bar()
}
fn is_replaced_content() -> bool {
constellat.send(ConstellationMsg::ViewportConstrained(
self.id, constraints)).unwrap();
}
fn issue587() {
a.b::<()>(c);
std::mem::transmute(dl.symbol::<()>("init").unwrap())
}
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fn try_shorthand() {
let x = expr?;
let y = expr.kaas()?.test();
let loooooooooooooooooooooooooooooooooooooooooong = does_this?.look?.good?.should_we_break?.after_the_first_question_mark?;
let yyyy = expr?.another?.another?.another?.another?.another?.another?.another?.another?.test();
let zzzz = expr?.another?.another?.another?.another?;
let aaa = x ???????????? ?????????????? ???? ????? ?????????????? ????????? ?????????????? ??;
let y = a.very .loooooooooooooooooooooooooooooooooooooong() .chain()
.inside() .weeeeeeeeeeeeeee()? .test() .0
.x;
parameterized(f,
substs,
def_id,
Ns::Value,
&[],
|tcx| tcx.lookup_item_type(def_id).generics)?;
fooooooooooooooooooooooooooo()?.bar()?.baaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaz()?;
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}
fn issue_1004() {
match *self {
ty::ImplOrTraitItem::MethodTraitItem(ref i) => write!(f, "{:?}", i),
ty::ImplOrTraitItem::ConstTraitItem(ref i) => write!(f, "{:?}", i),
ty::ImplOrTraitItem::TypeTraitItem(ref i) => write!(f, "{:?}", i),
}
?;
ty::tls::with(|tcx| {
let tap = ty::Binder(TraitAndProjections(principal, projections));
in_binder(f, tcx, &ty::Binder(""), Some(tap))
})
?;
}
fn issue1392() {
test_method(r#"
if foo {
a();
}
else {
b();
}
"#.trim());
}
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// #2067
impl Settings {
fn save(&self) -> Result<()> {
let mut file = File::create(&settings_path).chain_err(|| ErrorKind::WriteError(settings_path.clone()))?;
}
}