From 149ca1a421e461ecb1f88cb1b37fcceb9dd6b653 Mon Sep 17 00:00:00 2001
From: David Tolnay <dtolnay@gmail.com>
Date: Tue, 5 Nov 2019 10:33:54 -0800
Subject: [PATCH] panic

---
 demo/impl/src/lib.rs | 18 ++----------------
 1 file changed, 2 insertions(+), 16 deletions(-)

diff --git a/demo/impl/src/lib.rs b/demo/impl/src/lib.rs
index 63b1f03..c7bde85 100644
--- a/demo/impl/src/lib.rs
+++ b/demo/impl/src/lib.rs
@@ -1,20 +1,6 @@
 use proc_macro2::TokenStream;
-use quote::quote;
-use syn::DeriveInput;
 
 #[no_mangle]
-pub extern "C" fn demo(input: TokenStream) -> TokenStream {
-    let input: DeriveInput = match syn::parse2(input) {
-        Ok(input) => input,
-        Err(err) => return err.to_compile_error(),
-    };
-
-    let ident = input.ident;
-    let message = format!("Hello from WASM! My name is {}.", ident);
-
-    quote! {
-        impl #ident {
-            pub const MESSAGE: &'static str = #message;
-        }
-    }
+pub extern "C" fn demo(_input: TokenStream) -> TokenStream {
+    panic!("oh no!");
 }