Use #[macro_export(local_inner_macros)]

This fixes issue #10, allowing importing the macros in Rust 2018

CHANGELOG.md

@@ -5,6 +5,9 @@ The format is based on [Keep a Changelog] and this project adheres to
 [Semantic Versioning].
 
 ## [Unreleased]
+### Fixed
+- Macros that refer to other internal macros can now be imported when compiling
+for Rust 2018 ([issue #10](https://github.com/nvzqz/static-assertions-rs/issues/10))
 
 ## [0.3.0] - 2018-11-14
 ### Changed

src/assert_eq_size.rs

@@ -51,14 +51,14 @@
 /// [`usize`]: https://doc.rust-lang.org/std/primitive.usize.html
 /// [`u64`]: https://doc.rust-lang.org/std/primitive.u64.html
 /// [`u32`]: https://doc.rust-lang.org/std/primitive.u32.html
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! assert_eq_size {
     ($($xs:tt)+) => { _assert_eq_size!($($xs)+); };
 }
 
 #[doc(hidden)]
 #[cfg(feature = "nightly")]
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! _assert_eq_size {
     ($x:ty, $($xs:ty),+ $(,)*) => {
         const _: fn() -> () = || {
@@ -69,7 +69,7 @@ macro_rules! _assert_eq_size {
 
 #[doc(hidden)]
 #[cfg(not(feature = "nightly"))]
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! _assert_eq_size {
     ($x:ty, $($xs:ty),+ $(,)*) => {
         $(let _ = $crate::_core::mem::transmute::<$x, $xs>;)+
@@ -158,7 +158,7 @@ macro_rules! assert_eq_size_ptr {
 /// ```
 ///
 /// [`Clone`]: https://doc.rust-lang.org/std/clone/trait.Clone.html
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! assert_eq_size_val {
     ($x:expr, $($xs:expr),+ $(,)*) => {
         assert_eq_size_ptr!(&$x, $(&$xs),+);

src/assert_fields.rs

@@ -51,14 +51,14 @@
 /// assert_fields!(Range<u32>, middle);
 /// # }
 /// ```
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! assert_fields {
     ($($xs:tt)+) => { _assert_fields!($($xs)+); };
 }
 
 #[doc(hidden)]
 #[cfg(feature = "nightly")]
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! _assert_fields {
     ($t:path, $($f:ident),+) => {
         #[allow(unknown_lints, unneeded_field_pattern)]
@@ -70,7 +70,7 @@ macro_rules! _assert_fields {
 
 #[doc(hidden)]
 #[cfg(not(feature = "nightly"))]
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! _assert_fields {
     ($t:path, $($f:ident),+) => {
         #[allow(unknown_lints, unneeded_field_pattern)]

src/assert_impl.rs

@@ -43,14 +43,14 @@
 /// [`Send`]: https://doc.rust-lang.org/std/marker/trait.Send.html
 /// [`Sync`]: https://doc.rust-lang.org/std/marker/trait.Sync.html
 /// [blanket]: https://doc.rust-lang.org/book/second-edition/ch10-02-traits.html#using-trait-bounds-to-conditionally-implement-methods
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! assert_impl {
     ($($xs:tt)+) => { _assert_impl!($($xs)+); };
 }
 
 #[doc(hidden)]
 #[cfg(feature = "nightly")]
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! _assert_impl {
     ($x:ty, $($t:path),+ $(,)*) => {
         const _: fn() -> () = || {
@@ -62,7 +62,7 @@ macro_rules! _assert_impl {
 
 #[doc(hidden)]
 #[cfg(not(feature = "nightly"))]
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! _assert_impl {
     ($x:ty, $($t:path),+ $(,)*) => {
         {

src/assert_obj_safe.rs

@@ -75,14 +75,14 @@
 /// ```
 ///
 /// [object]: https://doc.rust-lang.org/book/2018-edition/ch17-02-trait-objects.html#object-safety-is-required-for-trait-objects
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! assert_obj_safe {
     ($($xs:tt)+) => { _assert_obj_safe!($($xs)+); };
 }
 
 #[doc(hidden)]
 #[cfg(feature = "nightly")]
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! _assert_obj_safe {
     ($($xs:ty),+ $(,)*) => {
         $(const _: Option<&$xs> = None;)+
@@ -91,7 +91,7 @@ macro_rules! _assert_obj_safe {
 
 #[doc(hidden)]
 #[cfg(not(feature = "nightly"))]
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! _assert_obj_safe {
     ($($xs:ty),+ $(,)*) => {
         $(let _: &$xs;)+

src/const_assert.rs

@@ -50,14 +50,14 @@
 /// ```
 ///
 /// [static_assert]: http://en.cppreference.com/w/cpp/language/static_assert
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! const_assert {
     ($($xs:tt)+) => { _const_assert!($($xs)+); };
 }
 
 #[doc(hidden)]
 #[cfg(feature = "nightly")]
-#[macro_export]
+#[macro_export(local_inner_macros)]
 #[allow(dead_code)]
 macro_rules! _const_assert {
     ($($xs:expr),+ $(,)*) => {
@@ -68,7 +68,7 @@ macro_rules! _const_assert {
 
 #[doc(hidden)]
 #[cfg(not(feature = "nightly"))]
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! _const_assert {
     ($($xs:expr),+ $(,)*) => {
         #[allow(unknown_lints, eq_op)]
@@ -107,7 +107,7 @@ macro_rules! _const_assert {
 /// const_assert_eq!(4 + 4, 4 * 4);
 /// # }
 /// ```
-#[macro_export]
+#[macro_export(local_inner_macros)]
 macro_rules! const_assert_eq {
     ($x:expr, $($xs:expr),+ $(,)*) => {
         const_assert!($($x == $xs),+);