uefi: Add and use prelude module

Add a prelude module for the core crate, exposing frequently used UEFI
types, such as `Status`, `Handle`, and `Event`.

Signed-off-by: Tim Crawford <[email protected]>

crates/uefi/src/block_io.rs

@@ -1,4 +1,4 @@
-use crate::status::Status;
+use crate::prelude::*;
 
 #[repr(C)]
 pub struct BlockIoMedia {

crates/uefi/src/boot.rs

@@ -1,7 +1,6 @@
-use crate::guid::Guid;
 use crate::memory::{MemoryDescriptor, MemoryType};
-use crate::status::Status;
-use crate::{Event, Handle, TableHeader, Tpl};
+use crate::prelude::*;
+use crate::TableHeader;
 
 #[repr(C)]
 pub enum InterfaceType {

crates/uefi/src/capsule.rs

@@ -1,5 +1,5 @@
-use crate::guid::Guid;
 use crate::memory::PhysicalAddress;
+use crate::prelude::*;
 
 pub const CAPSULE_FLAGS_PERSIST_ACROSS_RESET: u32 = 0x00010000;
 pub const CAPSULE_FLAGS_POPULATE_SYSTEM_TABLE: u32 = 0x00020000;

crates/uefi/src/component_name.rs

@@ -1,5 +1,4 @@
-use crate::status::Status;
-use crate::Handle;
+use crate::prelude::*;
 
 #[repr(C)]
 pub struct ComponentName {

crates/uefi/src/config.rs

@@ -1,4 +1,4 @@
-use crate::guid::Guid;
+use crate::prelude::*;
 
 #[repr(C)]
 pub struct ConfigurationTable {

crates/uefi/src/device.rs

@@ -1,4 +1,4 @@
-use crate::guid::Guid;
+use crate::prelude::*;
 
 enum_try_from_int! {
     #[repr(u8)]

crates/uefi/src/fs.rs

@@ -1,5 +1,4 @@
-use crate::guid::Guid;
-use crate::status::Status;
+use crate::prelude::*;
 use crate::time::Time;
 
 // Open modes

crates/uefi/src/graphics.rs

@@ -1,4 +1,4 @@
-use crate::status::Status;
+use crate::prelude::*;
 
 #[derive(Copy, Clone, Debug)]
 #[repr(C)]

crates/uefi/src/lib.rs

@@ -18,6 +18,7 @@ pub mod hii;
 pub mod loaded_image;
 pub mod memory;
 pub mod pointer;
+pub mod prelude;
 pub mod reset;
 pub mod runtime;
 pub mod shell;

crates/uefi/src/loaded_image.rs

@@ -1,7 +1,5 @@
 use crate::memory::MemoryType;
-use crate::status::Status;
-use crate::system::SystemTable;
-use crate::Handle;
+use crate::prelude::*;
 
 #[repr(C)]
 pub struct LoadedImage {

crates/uefi/src/macros.rs

@@ -20,7 +20,7 @@ macro_rules! enum_try_from_int {
         impl core::convert::TryFrom<$T> for $Name {
             type Error = ();
 
-            fn try_from(value: $T) -> Result<$Name, ()> {
+            fn try_from(value: $T) -> core::result::Result<$Name, ()> {
                 match value {
                     $(
                         $value => Ok($Name::$Variant),

crates/uefi/src/pointer.rs

@@ -1,5 +1,4 @@
-use crate::status::Status;
-use crate::Event;
+use crate::prelude::*;
 
 #[derive(Clone, Copy, Debug)]
 #[repr(C)]

crates/uefi/src/prelude.rs

@@ -0,0 +1,11 @@
+// SPDX-License-Identifier: MIT
+
+//! Access to commonly used data types and macros.
+
+pub use crate::guid::Guid;
+pub use crate::status::Result;
+pub use crate::status::Status;
+pub use crate::system::SystemTable;
+pub use crate::Event;
+pub use crate::Handle;
+pub use crate::Tpl;

crates/uefi/src/runtime.rs

@@ -1,8 +1,7 @@
 use crate::capsule::CapsuleHeader;
-use crate::guid::Guid;
 use crate::memory::{MemoryDescriptor, PhysicalAddress};
+use crate::prelude::*;
 use crate::reset::ResetType;
-use crate::status::Status;
 use crate::time::{Time, TimeCapabilities};
 use crate::TableHeader;
 

crates/uefi/src/shell.rs

@@ -1,5 +1,4 @@
-use crate::status::Status;
-use crate::Handle;
+use crate::prelude::*;
 
 #[repr(C)]
 pub struct Shell {

crates/uefi/src/system.rs

@@ -2,9 +2,10 @@ use core::slice;
 
 use crate::boot::BootServices;
 use crate::config::ConfigurationTable;
+use crate::prelude::*;
 use crate::runtime::RuntimeServices;
 use crate::text::{TextInput, TextOutput};
-use crate::{Handle, TableHeader};
+use crate::TableHeader;
 
 #[repr(C)]
 pub struct SystemTable {

crates/uefi/src/text.rs

@@ -1,5 +1,4 @@
-use crate::status::Status;
-use crate::Event;
+use crate::prelude::*;
 
 #[derive(Clone, Copy, Debug, Default)]
 #[repr(C)]