X-Git-Url: http://git.bitcoin.ninja/index.cgi?a=blobdiff_plain;f=lightning-c-bindings%2Fsrc%2Fc_types%2Fmod.rs;h=18d8a08dfa7b5cda7b17e7c1ba33cd3cb28e7fd2;hb=2bdcba6c2297ca3cabc45c484e35c058ee7d4739;hp=5db6dda00b908375df6a5b02accae57d2f21a89a;hpb=f160848382e6a1bc43dc100d77b96c4b4ecb3beb;p=ldk-c-bindings

diff --git a/lightning-c-bindings/src/c_types/mod.rs b/lightning-c-bindings/src/c_types/mod.rs
index 5db6dda..18d8a08 100644
--- a/lightning-c-bindings/src/c_types/mod.rs
+++ b/lightning-c-bindings/src/c_types/mod.rs
@@ -17,6 +17,16 @@ use std::convert::TryInto; // Bindings need at least rustc 1.34
 
 use std::io::{Cursor, Read}; // TODO: We should use core2 here when we support no_std
 
+#[repr(C)]
+/// A dummy struct of which an instance must never exist.
+/// This corresponds to the Rust type `Infallible`, or, in unstable rust, `!`
+pub struct NotConstructable {
+	_priv_thing: core::convert::Infallible,
+}
+impl From<core::convert::Infallible> for NotConstructable {
+	fn from(_: core::convert::Infallible) -> Self { unreachable!(); }
+}
+
 /// Integer in the range `0..32`
 #[derive(PartialEq, Eq, Copy, Clone)]
 #[allow(non_camel_case_types)]