Move stdx macros into submodule

crates/stdx/src/lib.rs

@@ -1,30 +1,13 @@
 //! Missing batteries for standard libraries.
 use std::{cell::Cell, fmt, time::Instant};
 
+mod macros;
+
 #[inline(always)]
 pub fn is_ci() -> bool {
     option_env!("CI").is_some()
 }
 
-#[macro_export]
-macro_rules! eprintln {
-    ($($tt:tt)*) => {{
-        if $crate::is_ci() {
-            panic!("Forgot to remove debug-print?")
-        }
-        std::eprintln!($($tt)*)
-    }}
-}
-
-/// Appends formatted string to a `String`.
-#[macro_export]
-macro_rules! format_to {
-    ($buf:expr) => ();
-    ($buf:expr, $lit:literal $($arg:tt)*) => {
-        { use ::std::fmt::Write as _; let _ = ::std::write!($buf, $lit $($arg)*); }
-    };
-}
-
 pub trait SepBy: Sized {
     /// Returns an `impl fmt::Display`, which joins elements via a separator.
     fn sep_by<'a>(self, sep: &'a str) -> SepByBuilder<'a, Self>;

crates/stdx/src/macros.rs

@@ -0,0 +1,19 @@
+//! Convenience macros.
+#[macro_export]
+macro_rules! eprintln {
+    ($($tt:tt)*) => {{
+        if $crate::is_ci() {
+            panic!("Forgot to remove debug-print?")
+        }
+        std::eprintln!($($tt)*)
+    }}
+}
+
+/// Appends formatted string to a `String`.
+#[macro_export]
+macro_rules! format_to {
+    ($buf:expr) => ();
+    ($buf:expr, $lit:literal $($arg:tt)*) => {
+        { use ::std::fmt::Write as _; let _ = ::std::write!($buf, $lit $($arg)*); }
+    };
+}