1 files changed, 79 insertions, 0 deletions
diff --git a/vendor/time-macros/src/to_tokens.rs b/vendor/time-macros/src/to_tokens.rs
new file mode 100644
index 0000000..7802158
--- /dev/null
+++ b/vendor/time-macros/src/to_tokens.rs
@@ -0,0 +1,79 @@
+use std::num::NonZeroU16;
+
+use proc_macro::{Group, Ident, Literal, Punct, Span, TokenStream, TokenTree};
+
+/// Turn a type into a [`TokenStream`].
+pub(crate) trait ToTokenStream: Sized {
+    fn append_to(self, ts: &mut TokenStream);
+}
+
+pub(crate) trait ToTokenTree: Sized {
+    fn into_token_tree(self) -> TokenTree;
+}
+
+impl<T: ToTokenTree> ToTokenStream for T {
+    fn append_to(self, ts: &mut TokenStream) {
+        ts.extend([self.into_token_tree()])
+    }
+}
+
+impl ToTokenTree for bool {
+    fn into_token_tree(self) -> TokenTree {
+        let lit = if self { "true" } else { "false" };
+        TokenTree::Ident(Ident::new(lit, Span::mixed_site()))
+    }
+}
+
+impl ToTokenStream for TokenStream {
+    fn append_to(self, ts: &mut TokenStream) {
+        ts.extend(self)
+    }
+}
+
+impl ToTokenTree for TokenTree {
+    fn into_token_tree(self) -> TokenTree {
+        self
+    }
+}
+
+impl ToTokenTree for &str {
+    fn into_token_tree(self) -> TokenTree {
+        TokenTree::Literal(Literal::string(self))
+    }
+}
+
+impl ToTokenTree for NonZeroU16 {
+    fn into_token_tree(self) -> TokenTree {
+        quote_group! {{
+            unsafe { ::core::num::NonZeroU16::new_unchecked(#(self.get())) }
+        }}
+    }
+}
+
+macro_rules! impl_for_tree_types {
+    ($($type:ty)*) => {$(
+        impl ToTokenTree for $type {
+            fn into_token_tree(self) -> TokenTree {
+                TokenTree::from(self)
+            }
+        }
+    )*};
+}
+impl_for_tree_types![Ident Literal Group Punct];
+
+macro_rules! impl_for_int {
+    ($($type:ty => $method:ident)*) => {$(
+        impl ToTokenTree for $type {
+            fn into_token_tree(self) -> TokenTree {
+                TokenTree::from(Literal::$method(self))
+            }
+        }
+    )*};
+}
+impl_for_int! {
+    i8 => i8_unsuffixed
+    u8 => u8_unsuffixed
+    u16 => u16_unsuffixed
+    i32 => i32_unsuffixed
+    u32 => u32_unsuffixed
+}