rust: init: Support type paths in pin_init!() and friends

This makes directly initializing structures with a type name that isn't
in the current scope work properly.

Signed-off-by: Asahi Lina <lina@asahilina.net>

Author: hoshinolina

rust/kernel/init.rs

@@ -569,12 +569,12 @@ macro_rules! stack_try_pin_init {
 // module `__internal` inside of `init/__internal.rs`.
 #[macro_export]
 macro_rules! pin_init {
-    ($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
+    ($(&$this:ident in)? $t:ident $(::$p:ident)* $(::<$($generics:ty),* $(,)?>)? {
         $($fields:tt)*
     }) => {
         $crate::__init_internal!(
             @this($($this)?),
-            @typ($t $(::<$($generics),*>)?),
+            @typ($t $(::$p)* $(::<$($generics),*>)?),
             @fields($($fields)*),
             @error(::core::convert::Infallible),
             @data(PinData, use_data),
@@ -625,12 +625,12 @@ macro_rules! pin_init {
 // module `__internal` inside of `init/__internal.rs`.
 #[macro_export]
 macro_rules! try_pin_init {
-    ($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
+    ($(&$this:ident in)? $t:ident $(::$p:ident)* $(::<$($generics:ty),* $(,)?>)? {
         $($fields:tt)*
     }) => {
         $crate::__init_internal!(
             @this($($this)?),
-            @typ($t $(::<$($generics),*>)? ),
+            @typ($t $(::$p)* $(::<$($generics),*>)? ),
             @fields($($fields)*),
             @error($crate::error::Error),
             @data(PinData, use_data),
@@ -639,12 +639,12 @@ macro_rules! try_pin_init {
             @munch_fields($($fields)*),
         )
     };
-    ($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
+    ($(&$this:ident in)? $t:ident $(::$p:ident)* $(::<$($generics:ty),* $(,)?>)? {
         $($fields:tt)*
     }? $err:ty) => {
         $crate::__init_internal!(
             @this($($this)?),
-            @typ($t $(::<$($generics),*>)? ),
+            @typ($t $(::$p)* $(::<$($generics),*>)? ),
             @fields($($fields)*),
             @error($err),
             @data(PinData, use_data),
@@ -674,12 +674,12 @@ macro_rules! try_pin_init {
 // module `__internal` inside of `init/__internal.rs`.
 #[macro_export]
 macro_rules! init {
-    ($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
+    ($(&$this:ident in)? $t:ident $(::$p:ident)* $(::<$($generics:ty),* $(,)?>)? {
         $($fields:tt)*
     }) => {
         $crate::__init_internal!(
             @this($($this)?),
-            @typ($t $(::<$($generics),*>)?),
+            @typ($t $(::$p)* $(::<$($generics),*>)?),
             @fields($($fields)*),
             @error(::core::convert::Infallible),
             @data(InitData, /*no use_data*/),
@@ -725,12 +725,12 @@ macro_rules! init {
 // module `__internal` inside of `init/__internal.rs`.
 #[macro_export]
 macro_rules! try_init {
-    ($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
+    ($(&$this:ident in)? $t:ident $(::$p:ident)* $(::<$($generics:ty),* $(,)?>)? {
         $($fields:tt)*
     }) => {
         $crate::__init_internal!(
             @this($($this)?),
-            @typ($t $(::<$($generics),*>)?),
+            @typ($t $(::$p)* $(::<$($generics),*>)?),
             @fields($($fields)*),
             @error($crate::error::Error),
             @data(InitData, /*no use_data*/),
@@ -739,12 +739,12 @@ macro_rules! try_init {
             @munch_fields($($fields)*),
         )
     };
-    ($(&$this:ident in)? $t:ident $(::<$($generics:ty),* $(,)?>)? {
+    ($(&$this:ident in)? $t:ident $(::$p:ident)* $(::<$($generics:ty),* $(,)?>)? {
         $($fields:tt)*
     }? $err:ty) => {
         $crate::__init_internal!(
             @this($($this)?),
-            @typ($t $(::<$($generics),*>)?),
+            @typ($t $(::$p)* $(::<$($generics),*>)?),
             @fields($($fields)*),
             @error($err),
             @data(InitData, /*no use_data*/),