Add new no proc macro attribute as a no-op stub

speelbarrow · Oct 25, 2023 · 64d0a0b · 64d0a0b
1 parent 330c042
commit 64d0a0b
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Showing 2 changed files with 17 additions and 0 deletions.
diff --git a/proc-macro/src/lib.rs b/proc-macro/src/lib.rs
@@ -32,3 +32,15 @@ fn main() { // Signature must be `fn main() -> !`
 pub fn entry(attr: TokenStream, input: TokenStream) -> TokenStream {
     entry::entry(attr, input)
 }
+
+mod no;
+/// A stand-in for:
+/// ``` no_run
+/// #![cfg_attr(not(test), no_std)]
+/// #![cfg_attr(not(test), no_main)]
+/// ```
+/// Should be used at the top of your `main.rs` file.
+#[proc_macro_attribute]
+pub fn no(attr: TokenStream, input: TokenStream) -> TokenStream {
+    no::no(attr, input)
+}
diff --git a/proc-macro/src/no.rs b/proc-macro/src/no.rs
@@ -0,0 +1,5 @@
+use proc_macro::TokenStream;
+
+pub fn no(_attr: TokenStream, input: TokenStream) -> TokenStream {
+    input
+}