ddb2466f6a
followed by a semicolon.
This allows code like `vec![1i, 2, 3].len();` to work.
This breaks code that uses macros as statements without putting
semicolons after them, such as:
fn main() {
...
assert!(a == b)
assert!(c == d)
println(...);
}
It also breaks code that uses macros as items without semicolons:
local_data_key!(foo)
fn main() {
println("hello world")
}
Add semicolons to fix this code. Those two examples can be fixed as
follows:
fn main() {
...
assert!(a == b);
assert!(c == d);
println(...);
}
local_data_key!(foo);
fn main() {
println("hello world")
}
RFC #378.
Closes #18635.
[breaking-change]
56 lines
1.6 KiB
Rust
56 lines
1.6 KiB
Rust
// Copyright 2014 The Rust Project Developers. See the COPYRIGHT
|
|
// file at the top-level directory of this distribution and at
|
|
// http://rust-lang.org/COPYRIGHT.
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
|
|
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
|
|
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
|
|
// option. This file may not be copied, modified, or distributed
|
|
// except according to those terms.
|
|
|
|
#![macro_escape]
|
|
|
|
#[macro_export]
|
|
macro_rules! register_diagnostic {
|
|
($code:tt, $description:tt) => (__register_diagnostic! { $code, $description });
|
|
($code:tt) => (__register_diagnostic! { $code })
|
|
}
|
|
|
|
#[macro_export]
|
|
macro_rules! span_err {
|
|
($session:expr, $span:expr, $code:ident, $($message:tt)*) => ({
|
|
__diagnostic_used!($code);
|
|
$session.span_err_with_code($span, format!($($message)*).as_slice(), stringify!($code))
|
|
})
|
|
}
|
|
|
|
#[macro_export]
|
|
macro_rules! span_warn {
|
|
($session:expr, $span:expr, $code:ident, $($message:tt)*) => ({
|
|
__diagnostic_used!($code);
|
|
$session.span_warn_with_code($span, format!($($message)*).as_slice(), stringify!($code))
|
|
})
|
|
}
|
|
|
|
#[macro_export]
|
|
macro_rules! span_note {
|
|
($session:expr, $span:expr, $($message:tt)*) => ({
|
|
($session).span_note($span, format!($($message)*).as_slice())
|
|
})
|
|
}
|
|
|
|
#[macro_export]
|
|
macro_rules! span_help {
|
|
($session:expr, $span:expr, $($message:tt)*) => ({
|
|
($session).span_help($span, format!($($message)*).as_slice())
|
|
})
|
|
}
|
|
|
|
#[macro_export]
|
|
macro_rules! register_diagnostics {
|
|
($($code:tt),*) => (
|
|
$(register_diagnostic! { $code })*
|
|
)
|
|
}
|
|
|