garando_syntax2 0.1.0

Backport of libsyntax
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// FIXME garando
macro_rules! __register_diagnostic {
    ($code:tt, $description:tt) => {};
    ($code:tt) => {};
}

// FIXME garando
macro_rules! __diagnostic_used {
    ($code:tt) => {};
}

#[macro_export]
macro_rules! register_diagnostic {
    ($code:tt, $description:tt) => {
        __register_diagnostic! { $code, $description }
    };
    ($code:tt) => {
        __register_diagnostic! { $code }
    };
}

#[macro_export]
macro_rules! span_fatal {
    ($session:expr, $span:expr, $code:ident, $($message:tt)*) => ({
        __diagnostic_used!($code);
        $session.span_fatal_with_code($span, &format!($($message)*), stringify!($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)*), 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)*), stringify!($code))
    })
}

#[macro_export]
macro_rules! struct_err {
    ($session:expr, $code:ident, $($message:tt)*) => ({
        __diagnostic_used!($code);
        $session.struct_err_with_code(&format!($($message)*), stringify!($code))
    })
}

#[macro_export]
macro_rules! span_err_or_warn {
    ($is_warning:expr, $session:expr, $span:expr, $code:ident, $($message:tt)*) => ({
        __diagnostic_used!($code);
        if $is_warning {
            $session.span_warn_with_code($span, &format!($($message)*), stringify!($code))
        } else {
            $session.span_err_with_code($span, &format!($($message)*), stringify!($code))
        }
    })
}

#[macro_export]
macro_rules! struct_span_fatal {
    ($session:expr, $span:expr, $code:ident, $($message:tt)*) => ({
        __diagnostic_used!($code);
        $session.struct_span_fatal_with_code($span, &format!($($message)*), stringify!($code))
    })
}

#[macro_export]
macro_rules! struct_span_err {
    ($session:expr, $span:expr, $code:ident, $($message:tt)*) => ({
        __diagnostic_used!($code);
        $session.struct_span_err_with_code($span, &format!($($message)*), stringify!($code))
    })
}

#[macro_export]
macro_rules! struct_span_warn {
    ($session:expr, $span:expr, $code:ident, $($message:tt)*) => ({
        __diagnostic_used!($code);
        $session.struct_span_warn_with_code($span, &format!($($message)*), stringify!($code))
    })
}

#[macro_export]
macro_rules! struct_span_err_or_warn {
    ($is_warning:expr, $session:expr, $span:expr, $code:ident, $($message:tt)*) => ({
        __diagnostic_used!($code);
        if $is_warning {
            $session.struct_span_warn_with_code($span, &format!($($message)*), stringify!($code))
        } else {
            $session.struct_span_err_with_code($span, &format!($($message)*), stringify!($code))
        }
    })
}

#[macro_export]
macro_rules! span_note {
    ($err:expr, $span:expr, $($message:tt)*) => ({
        ($err).span_note($span, &format!($($message)*));
    })
}

#[macro_export]
macro_rules! span_help {
    ($err:expr, $span:expr, $($message:tt)*) => ({
        ($err).span_help($span, &format!($($message)*));
    })
}

#[macro_export]
macro_rules! help {
    ($err:expr, $($message:tt)*) => ({
        ($err).help(&format!($($message)*));
    })
}

#[macro_export]
macro_rules! register_diagnostics {
    ($($code:tt),*) => (
        $(register_diagnostic! { $code })*
    );
    ($($code:tt),*,) => (
        $(register_diagnostic! { $code })*
    )
}

#[macro_export]
macro_rules! register_long_diagnostics {
    ($($code:tt: $description:tt),*) => (
        $(register_diagnostic! { $code, $description })*
    );
    ($($code:tt: $description:tt),*,) => (
        $(register_diagnostic! { $code, $description })*
    )
}