Take references to input

mono-fmt-macro/src/to_tokens.rs

@@ -76,7 +76,7 @@ impl ToTokens for Scoped<'_, Format<'_>> {
 
         tokens.extend(quote! {
             #[allow(unused_parens)]
-            match (#(#args),*) {
+            match (#(&#args),*) {
                 (#(#idents),*) => (
                     #(#parts),*
                 )
@@ -111,16 +111,19 @@ impl ToTokens for Scoped<'_, FormatArg<'_>> {
                 let current_position = self.current_position.get();
                 self.current_position.set(current_position + 1);
 
-                pos_arg_ident(current_position)
+                pos_arg_ident(current_position).to_token_stream()
             }
-            Some(FormatArgRef::Positional(idx)) => pos_arg_ident(idx),
+            Some(FormatArgRef::Positional(idx)) => pos_arg_ident(idx).to_token_stream(),
             Some(FormatArgRef::Named(name)) => self
                 .input
                 .named_args
                 .iter()
                 .find(|(arg, _)| arg == name)
-                .map(|(name, _)| named_arg_ident(name))
+                .map(|(name, _)| named_arg_ident(name).to_token_stream())
-                .unwrap_or_else(|| Ident::new(name, self.input.format_str.span())),
+                .unwrap_or_else(|| {
+                    let ident = Ident::new(name, self.input.format_str.span());
+                    quote! { &#ident }
+                }),
         };
 
         let opt_ty = opt_ty_tokens(self.scope(&self.inner.format_spec.formatter_args));

src/args.rs

@@ -50,13 +50,13 @@ impl Arguments for Str {
 macro_rules! traits {
     ($($(#[$no_reference_blanket_impl:ident])? struct $arg_name:ident: trait $trait:ident);* $(;)?) => {
         $(
-            pub struct $arg_name<T, O>(pub T, pub O);
+            pub struct $arg_name<'a, T: ?Sized, O>(pub &'a T, pub O);
 
             pub trait $trait {
                 fn fmt<W: Write, O: FmtOpts>(&self, f: &mut Formatter<W, O>) -> Result;
             }
 
-            impl<T: $trait, O: FmtOpts> Arguments for $arg_name<T, O> {
+            impl<T: $trait + ?Sized, O: FmtOpts> Arguments for $arg_name<'_, T, O> {
                 fn fmt<W: Write, OldOpts: FmtOpts>(&self, f: &mut Formatter<W, OldOpts>) -> Result {
                     let mut f = f.wrap_with(&self.1);
 

src/lib.rs

@@ -121,14 +121,11 @@ pub mod uwu {
     fn test_expansion() {
         let evil = Cell::new(0);
         format!(
-            "{0}{0}{1}{owo}",
+            "{0}{0}",
             {
                 evil.set(evil.get() + 1);
                 0
             },
-            5,
-            owo = "owo",
         );
-        // assert_eq!(evil.get(), 1);
     }
 }

src/rust_core_impl/num.rs

@@ -1,5 +1,7 @@
 //! Integer and floating-point number formatting
 
+#![allow(clippy::pedantic)]
+
 use core::{
     mem::MaybeUninit,
     ops::{Div, Rem, Sub},

tests/base.rs

@@ -35,4 +35,18 @@ fn dont_move() {
     let string = "uwu".to_string();
     let _ = format!("{string}");
     assert_eq!("uwu", string);
+
+    let string = "owo".to_string();
+    let _ = format!("{0}{0}", string);
+    assert_eq!("owo", string);
+}
+
+
+#[test]
+fn ptr_correct_addr() {
+    static STATIC: u8 = 0;
+    let addr = std::format!("{:p}", (&STATIC) as *const u8);
+    let fmt = format!("{:p}", &STATIC);
+
+    assert_eq!(addr, fmt);
 }