rust/tests/source/macro_rules.rs
2018-08-31 10:37:22 +09:00

293 lines
7.4 KiB
Rust

// rustfmt-format_macro_matchers: true
macro_rules! m {
() => ();
( $ x : ident ) => ();
( $ m1 : ident , $ m2 : ident , $ x : ident ) => ();
( $($beginning:ident),*;$middle:ident;$($end:ident),* ) => ();
( $($beginning: ident),*; $middle: ident; $($end: ident),*; $($beginning: ident),*; $middle: ident; $($end: ident),* ) => {};
( $ name : ident ( $ ( $ dol : tt $ var : ident ) * ) $ ( $ body : tt ) * ) => ();
( $( $ i : ident : $ ty : ty , $def : expr , $stb : expr , $ ( $ dstring : tt ) , + ) ; + $ ( ; ) *
$( $ i : ident : $ ty : ty , $def : expr , $stb : expr , $ ( $ dstring : tt ) , + ) ; + $ ( ; ) *
) => {};
( $foo: tt foo [$ attr : meta] $name: ident ) => {};
( $foo: tt [$ attr: meta] $name: ident ) => {};
( $foo: tt &'a [$attr : meta] $name: ident ) => {};
( $foo: tt foo # [ $attr : meta] $name: ident ) => {};
( $foo: tt # [ $attr : meta] $name: ident) => {};
( $foo: tt &'a # [ $attr : meta] $name: ident ) => {};
( $ x : tt foo bar foo bar foo bar $ y : tt => x*y*z $ z : tt , $ ( $a: tt ) , * ) => {};
}
macro_rules! impl_a_method {
($n:ident ( $a:ident : $ta:ty ) -> $ret:ty { $body:expr }) => {
fn $n($a:$ta) -> $ret { $body }
macro_rules! $n { ($va:expr) => { $n($va) } }
};
($n:ident ( $a:ident : $ta:ty, $b:ident : $tb:ty ) -> $ret:ty { $body:expr }) => {
fn $n($a:$ta, $b:$tb) -> $ret { $body }
macro_rules! $n { ($va:expr, $vb:expr) => { $n($va, $vb) } }
};
($n:ident ( $a:ident : $ta:ty, $b:ident : $tb:ty, $c:ident : $tc:ty ) -> $ret:ty { $body:expr }) => {
fn $n($a:$ta, $b:$tb, $c:$tc) -> $ret { $body }
macro_rules! $n { ($va:expr, $vb:expr, $vc:expr) => { $n($va, $vb, $vc) } }
};
($n:ident ( $a:ident : $ta:ty, $b:ident : $tb:ty, $c:ident : $tc:ty, $d:ident : $td:ty ) -> $ret:ty { $body:expr }) => {
fn $n($a:$ta, $b:$tb, $c:$tc, $d:$td) -> $ret { $body }
macro_rules! $n { ($va:expr, $vb:expr, $vc:expr, $vd:expr) => { $n($va, $vb, $vc, $vd) } }
};
}
macro_rules! m {
// a
($expr :expr, $( $func : ident ) * ) => {
{
let x = $expr;
$func (
x
)
}
};
/* b */
() => {/* c */};
(@tag) =>
{
};
// d
( $item:ident ) => {
mod macro_item { struct $item ; }
};
}
macro m2 {
// a
($expr :expr, $( $func : ident ) * ) => {
{
let x = $expr;
$func (
x
)
}
}
/* b */
() => {/* c */}
(@tag) =>
{
}
// d
( $item:ident ) => {
mod macro_item { struct $item ; }
}
}
// #2438, #2476
macro_rules! m {
() => {
fn foo() {
this_line_is_98_characters_long_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx(
);
}
}
}
macro_rules! m {
() => {
fn foo() {
this_line_is_99_characters_long_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx(
);
}
};
}
macro_rules! m {
() => {
fn foo() {
this_line_is_100_characters_long_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx(
);
}
};
}
macro_rules! m {
() => {
fn foo() {
this_line_is_101_characters_long_xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx(
);
}
};
}
// #2439
macro_rules! m {
($line0_xxxxxxxxxxxxxxxxx: expr, $line1_xxxxxxxxxxxxxxxxx: expr, $line2_xxxxxxxxxxxxxxxxx: expr, $line3_xxxxxxxxxxxxxxxxx: expr,) => {};
}
// #2466
// Skip formatting `macro_rules!` that are not using `{}`.
macro_rules! m (
() => ()
);
macro_rules! m [
() => ()
];
// #2470
macro foo($type_name: ident, $docs: expr) {
#[allow(non_camel_case_types)]
#[doc=$docs]
#[derive(Debug, Clone, Copy)]
pub struct $type_name;
}
// #2534
macro_rules! foo {
($a:ident : $b:ty) => {};
($a:ident $b:ident $c:ident) => {};
}
// #2538
macro_rules! add_message_to_notes {
($msg:expr) => {{
let mut lines = message.lines();
notes.push_str(&format!("\n{}: {}", level, lines.next().unwrap()));
for line in lines {
notes.push_str(&format!(
"\n{:indent$}{line}",
"",
indent = level.len() + 2,
line = line,
));
}
}}
}
// #2560
macro_rules! binary {
($_self:ident,$expr:expr, $lhs:expr,$func:ident) => {
while $_self.matched($expr) {
let op = $_self.get_binary_op()?;
let rhs = Box::new($_self.$func()?);
$lhs = Spanned {
span: $lhs.get_span().to(rhs.get_span()),
value: Expression::Binary {
lhs: Box::new($lhs),
op,
rhs,
},
}
}
};
}
// #2558
macro_rules! m {
($x:) => {};
($($foo:expr)()?) => {};
}
// #2749
macro_rules! foo {
($(x)* {}) => {};
($(x)* ()) => {};
($(x)* []) => {};
}
macro_rules! __wundergraph_expand_sqlite_mutation {
( $mutation_name:ident $((context = $($context:tt)*))*{ $( $entity_name:ident( $(insert = $insert:ident,)* $(update = $update:ident,)* $(delete = $($delete:tt)+)* ), )* } ) => {};
}
// #2607
macro_rules! bench {
($ty:ident) => {
criterion_group!(
name = benches;
config = ::common_bench::reduced_samples();
targets = call, map;
);
};
}
// #2770
macro_rules! save_regs {
() => {
asm!("push rax
push rcx
push rdx
push rsi
push rdi
push r8
push r9
push r10
push r11"
:::: "intel", "volatile");
};
}
// #2721
macro_rules! impl_as_byte_slice_arrays {
($n:expr,) => {};
($n:expr, $N:ident, $($NN:ident,)*) => {
impl_as_byte_slice_arrays!($n - 1, $($NN,)*);
impl<T> AsByteSliceMut for [T; $n] where [T]: AsByteSliceMut {
fn as_byte_slice_mut(&mut self) -> &mut [u8] {
self[..].as_byte_slice_mut()
}
fn to_le(&mut self) {
self[..].to_le()
}
}
};
(!div $n:expr,) => {};
(!div $n:expr, $N:ident, $($NN:ident,)*) => {
impl_as_byte_slice_arrays!(!div $n / 2, $($NN,)*);
impl<T> AsByteSliceMut for [T; $n] where [T]: AsByteSliceMut {
fn as_byte_slice_mut(&mut self) -> &mut [u8] {
self[..].as_byte_slice_mut()
}
fn to_le(&mut self) {
self[..].to_le()
}
}
};
}
// #2919
fn foo() {
{
macro_rules! touch_value {
($func:ident, $value:expr) => {{
let result = API::get_cached().$func(self, key.as_ptr(), $value, ffi::VSPropAppendMode::paTouch);
let result = API::get_cached().$func(self, key.as_ptr(), $value, ffi::VSPropAppend);
let result = API::get_cached().$func(self, key.as_ptr(), $value, ffi::VSPropAppendM);
let result = APIIIIIIIII::get_cached().$func(self, key.as_ptr(), $value, ffi::VSPropAppendM);
let result = API::get_cached().$func(self, key.as_ptr(), $value, ffi::VSPropAppendMMMMMMMMMM);
debug_assert!(result == 0);
}};
}
}
}
// #2642
macro_rules! template {
($name: expr) => {
format_args!(r##"
"http://example.com"
# test
"##, $name)
}
}