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Expect at least one expr for p, what_fmt and expected_fmt.
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@ -67,12 +67,12 @@ macro_rules! try_validation {
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/// ```
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///
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macro_rules! try_validation_pat {
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($e:expr, $where:expr, { $( $p:pat )|* => { $( $what_fmt:expr ),* } $( expected { $( $expected_fmt:expr ),* } )? $( , )?}) => {{
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($e:expr, $where:expr, { $( $p:pat )|+ => { $( $what_fmt:expr ),+ } $( expected { $( $expected_fmt:expr ),+ } )? $( , )?}) => {{
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match $e {
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Ok(x) => x,
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// We catch the error and turn it into a validation failure. We are okay with
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// allocation here as this can only slow down builds that fail anyway.
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$( Err(InterpErrorInfo { kind: $p, .. }) )|* => throw_validation_failure!(format_args!($( $what_fmt ),*), $where $(, format_args!($( $expected_fmt ),*))?),
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$( Err(InterpErrorInfo { kind: $p, .. }) )|+ => throw_validation_failure!(format_args!($( $what_fmt ),+), $where $(, format_args!($( $expected_fmt ),+))?),
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#[allow(unreachable_patterns)]
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Err(e) => Err::<!, _>(e)?,
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}
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