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Expect at least one expr for p, what_fmt and expected_fmt.

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This commit is contained in:
jumbatm 2020-05-01 21:32:15 +10:00
parent f1d778fef1
commit 8175c4ceec
1 changed files with 2 additions and 2 deletions
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4
src/librustc_mir/interpret/validity.rs
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@ -67,12 +67,12 @@ macro_rules! try_validation {
/// ```
///
macro_rules! try_validation_pat {
($e:expr, $where:expr, { $( $p:pat )|* => { $( $what_fmt:expr ),* } $( expected { $( $expected_fmt:expr ),* } )? $( , )?}) => {{
($e:expr, $where:expr, { $( $p:pat )|+ => { $( $what_fmt:expr ),+ } $( expected { $( $expected_fmt:expr ),+ } )? $( , )?}) => {{
match $e {
Ok(x) => x,
// We catch the error and turn it into a validation failure. We are okay with
// allocation here as this can only slow down builds that fail anyway.
$( Err(InterpErrorInfo { kind: $p, .. }) )|* => throw_validation_failure!(format_args!($( $what_fmt ),*), $where $(, format_args!($( $expected_fmt ),*))?),
$( Err(InterpErrorInfo { kind: $p, .. }) )|+ => throw_validation_failure!(format_args!($( $what_fmt ),+), $where $(, format_args!($( $expected_fmt ),+))?),
#[allow(unreachable_patterns)]
Err(e) => Err::<!, _>(e)?,
}