https://gcc.gnu.org/g:433fbb156898c256c38a9ee137a51a42fe9177ee
commit r15-2497-g433fbb156898c256c38a9ee137a51a42fe9177ee
Author: Arthur Cohen <arthur.co...@embecosm.com>
Date: Mon Feb 26 11:55:47 2024 +0100
gccrs: format-parser: Add `is_some_and` method for Option<T>
Workaround for Ubuntu 18.04, since we still use it for the GCC 4.8 CI.
The default Rust package is 1.65 (and unlikely to change I assume?),
but the generic format parser library uses `is_some_and` which was
introduced in 1.70. So this is a simple reimplementation, directly taken
from the standard library sources.
libgrust/ChangeLog:
* libformat_parser/generic_format_parser/src/lib.rs: Add
IsSomeAnd<T>
trait, impl it for Option<T>.
Diff:
---
.../libformat_parser/generic_format_parser/src/lib.rs | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
diff --git a/libgrust/libformat_parser/generic_format_parser/src/lib.rs
b/libgrust/libformat_parser/generic_format_parser/src/lib.rs
index 6a366177f252..8062bf9e5cec 100644
--- a/libgrust/libformat_parser/generic_format_parser/src/lib.rs
+++ b/libgrust/libformat_parser/generic_format_parser/src/lib.rs
@@ -22,6 +22,22 @@ fn is_id_continue(c: char) -> bool {
unicode_xid::UnicodeXID::is_xid_continue(c)
}
+// Workaround for Ubuntu 18.04. The default Rust package is 1.65 (and unlikely
to change I assume?), but the
+// generic format parser library uses `is_some_and` which was introduced in
1.70. So this is a reimplementation,
+// directly taken from the standard library sources
+trait IsSomeAnd<T> {
+ fn is_some_and(self, f: impl FnOnce(T) -> bool) -> bool;
+}
+
+impl<T> IsSomeAnd<T> for Option<T> {
+ fn is_some_and(self, f: impl FnOnce(T) -> bool) -> bool {
+ match self {
+ None => false,
+ Some(x) => f(x),
+ }
+ }
+}
+
// use rustc_lexer::unescape;
pub use Alignment::*;
pub use Count::*;
