From 6bf0a5cb5034a7e684dcc3500e841785237ce2dd Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 7 Apr 2024 19:32:43 +0200
Subject: Adding upstream version 1:115.7.0.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 third_party/rust/syn/src/span.rs | 67 ++++++++++++++++++++++++++++++++++++++++
 1 file changed, 67 insertions(+)
 create mode 100644 third_party/rust/syn/src/span.rs

(limited to 'third_party/rust/syn/src/span.rs')

diff --git a/third_party/rust/syn/src/span.rs b/third_party/rust/syn/src/span.rs
new file mode 100644
index 0000000000..27a7fe846d
--- /dev/null
+++ b/third_party/rust/syn/src/span.rs
@@ -0,0 +1,67 @@
+use proc_macro2::Span;
+
+pub trait IntoSpans<S> {
+    fn into_spans(self) -> S;
+}
+
+impl IntoSpans<[Span; 1]> for Span {
+    fn into_spans(self) -> [Span; 1] {
+        [self]
+    }
+}
+
+impl IntoSpans<[Span; 2]> for Span {
+    fn into_spans(self) -> [Span; 2] {
+        [self, self]
+    }
+}
+
+impl IntoSpans<[Span; 3]> for Span {
+    fn into_spans(self) -> [Span; 3] {
+        [self, self, self]
+    }
+}
+
+impl IntoSpans<[Span; 1]> for [Span; 1] {
+    fn into_spans(self) -> [Span; 1] {
+        self
+    }
+}
+
+impl IntoSpans<[Span; 2]> for [Span; 2] {
+    fn into_spans(self) -> [Span; 2] {
+        self
+    }
+}
+
+impl IntoSpans<[Span; 3]> for [Span; 3] {
+    fn into_spans(self) -> [Span; 3] {
+        self
+    }
+}
+
+#[cfg(feature = "parsing")]
+pub trait FromSpans: Sized {
+    fn from_spans(spans: &[Span]) -> Self;
+}
+
+#[cfg(feature = "parsing")]
+impl FromSpans for [Span; 1] {
+    fn from_spans(spans: &[Span]) -> Self {
+        [spans[0]]
+    }
+}
+
+#[cfg(feature = "parsing")]
+impl FromSpans for [Span; 2] {
+    fn from_spans(spans: &[Span]) -> Self {
+        [spans[0], spans[1]]
+    }
+}
+
+#[cfg(feature = "parsing")]
+impl FromSpans for [Span; 3] {
+    fn from_spans(spans: &[Span]) -> Self {
+        [spans[0], spans[1], spans[2]]
+    }
+}
-- 
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