Auto merge of #1379 - gnzlbg:deprecate_fixed_width_ints, r=gnzlbg

Deprecate fixed width integer type aliases

cc @emilio - I think it makes sense to ensure that the latest released version of bindgen works properly with this change. That is, that even when asked to use C types from, e.g., `libc::`, it does not use aliases for the fixed-width integer C types (e.g. `libc::int64_t`) but uses Rust primitive types instead (e.g. `u64`).

Closes #1304 .

Author: bors

src/cloudabi/mod.rs

@@ -1,12 +1,3 @@
-pub type int8_t = i8;
-pub type int16_t = i16;
-pub type int32_t = i32;
-pub type int64_t = i64;
-pub type uint8_t = u8;
-pub type uint16_t = u16;
-pub type uint32_t = u32;
-pub type uint64_t = u64;
-
 pub type c_schar = i8;
 pub type c_uchar = u8;
 pub type c_short = i16;

src/fixed_width_ints.rs

@@ -0,0 +1,44 @@
+//! This module contains type aliases for C's fixed-width integer types .
+//!
+//! These aliases are deprecated: use the Rust types instead.
+
+#[deprecated(
+    since = "0.2.55",
+    note = "Use i8 instead."
+)]
+pub type int8_t = i8;
+#[deprecated(
+    since = "0.2.55",
+    note = "Use i16 instead."
+)]
+pub type int16_t = i16;
+#[deprecated(
+    since = "0.2.55",
+    note = "Use i32 instead."
+)]
+pub type int32_t = i32;
+#[deprecated(
+    since = "0.2.55",
+    note = "Use i64 instead."
+)]
+pub type int64_t = i64;
+#[deprecated(
+    since = "0.2.55",
+    note = "Use u8 instead."
+)]
+pub type uint8_t = u8;
+#[deprecated(
+    since = "0.2.55",
+    note = "Use u16 instead."
+)]
+pub type uint16_t = u16;
+#[deprecated(
+    since = "0.2.55",
+    note = "Use u32 instead."
+)]
+pub type uint32_t = u32;
+#[deprecated(
+    since = "0.2.55",
+    note = "Use u64 instead."
+)]
+pub type uint64_t = u64;

src/fuchsia/mod.rs

@@ -5,15 +5,6 @@
 
 // PUB_TYPE
 
-pub type int8_t = i8;
-pub type int16_t = i16;
-pub type int32_t = i32;
-pub type int64_t = i64;
-pub type uint8_t = u8;
-pub type uint16_t = u16;
-pub type uint32_t = u32;
-pub type uint64_t = u64;
-
 pub type c_schar = i8;
 pub type c_uchar = u8;
 pub type c_short = i16;
@@ -410,8 +401,8 @@ s! {
     }
 
     pub struct epoll_event {
-        pub events: ::uint32_t,
-        pub u64: ::uint64_t,
+        pub events: u32,
+        pub u64: u64,
     }
 
     pub struct lconv {
@@ -521,40 +512,40 @@ s! {
     }
 
     pub struct dqblk {
-        pub dqb_bhardlimit: ::uint64_t,
-        pub dqb_bsoftlimit: ::uint64_t,
-        pub dqb_curspace: ::uint64_t,
-        pub dqb_ihardlimit: ::uint64_t,
-        pub dqb_isoftlimit: ::uint64_t,
-        pub dqb_curinodes: ::uint64_t,
-        pub dqb_btime: ::uint64_t,
-        pub dqb_itime: ::uint64_t,
-        pub dqb_valid: ::uint32_t,
+        pub dqb_bhardlimit: u64,
+        pub dqb_bsoftlimit: u64,
+        pub dqb_curspace: u64,
+        pub dqb_ihardlimit: u64,
+        pub dqb_isoftlimit: u64,
+        pub dqb_curinodes: u64,
+        pub dqb_btime: u64,
+        pub dqb_itime: u64,
+        pub dqb_valid: u32,
     }
 
     pub struct signalfd_siginfo {
-        pub ssi_signo: ::uint32_t,
-        pub ssi_errno: ::int32_t,
-        pub ssi_code: ::int32_t,
-        pub ssi_pid: ::uint32_t,
-        pub ssi_uid: ::uint32_t,
-        pub ssi_fd: ::int32_t,
-        pub ssi_tid: ::uint32_t,
-        pub ssi_band: ::uint32_t,
-        pub ssi_overrun: ::uint32_t,
-        pub ssi_trapno: ::uint32_t,
-        pub ssi_status: ::int32_t,
-        pub ssi_int: ::int32_t,
-        pub ssi_ptr: ::uint64_t,
-        pub ssi_utime: ::uint64_t,
-        pub ssi_stime: ::uint64_t,
-        pub ssi_addr: ::uint64_t,
-        pub ssi_addr_lsb: ::uint16_t,
-        _pad2: ::uint16_t,
-        pub ssi_syscall: ::int32_t,
-        pub ssi_call_addr: ::uint64_t,
-        pub ssi_arch: ::uint32_t,
-        _pad: [::uint8_t; 28],
+        pub ssi_signo: u32,
+        pub ssi_errno: i32,
+        pub ssi_code: i32,
+        pub ssi_pid: u32,
+        pub ssi_uid: u32,
+        pub ssi_fd: i32,
+        pub ssi_tid: u32,
+        pub ssi_band: u32,
+        pub ssi_overrun: u32,
+        pub ssi_trapno: u32,
+        pub ssi_status: i32,
+        pub ssi_int: i32,
+        pub ssi_ptr: u64,
+        pub ssi_utime: u64,
+        pub ssi_stime: u64,
+        pub ssi_addr: u64,
+        pub ssi_addr_lsb: u16,
+        _pad2: u16,
+        pub ssi_syscall: i32,
+        pub ssi_call_addr: u64,
+        pub ssi_arch: u32,
+        _pad: [u8; 28],
     }
 
     pub struct itimerspec {
@@ -1803,16 +1794,16 @@ pub const MNT_EXPIRE: ::c_int = 0x4;
 pub const Q_GETFMT: ::c_int = 0x800004;
 pub const Q_GETINFO: ::c_int = 0x800005;
 pub const Q_SETINFO: ::c_int = 0x800006;
-pub const QIF_BLIMITS: ::uint32_t = 1;
-pub const QIF_SPACE: ::uint32_t = 2;
-pub const QIF_ILIMITS: ::uint32_t = 4;
-pub const QIF_INODES: ::uint32_t = 8;
-pub const QIF_BTIME: ::uint32_t = 16;
-pub const QIF_ITIME: ::uint32_t = 32;
-pub const QIF_LIMITS: ::uint32_t = 5;
-pub const QIF_USAGE: ::uint32_t = 10;
-pub const QIF_TIMES: ::uint32_t = 48;
-pub const QIF_ALL: ::uint32_t = 63;
+pub const QIF_BLIMITS: u32 = 1;
+pub const QIF_SPACE: u32 = 2;
+pub const QIF_ILIMITS: u32 = 4;
+pub const QIF_INODES: u32 = 8;
+pub const QIF_BTIME: u32 = 16;
+pub const QIF_ITIME: u32 = 32;
+pub const QIF_LIMITS: u32 = 5;
+pub const QIF_USAGE: u32 = 10;
+pub const QIF_TIMES: u32 = 48;
+pub const QIF_ALL: u32 = 63;
 
 pub const MNT_FORCE: ::c_int = 0x1;
 

src/hermit/mod.rs

@@ -13,15 +13,6 @@
 // Ported by Colin Fink <[email protected]>
 //       and Stefan Lankes <[email protected]>
 
-pub type int8_t = i8;
-pub type int16_t = i16;
-pub type int32_t = i32;
-pub type int64_t = i64;
-pub type uint8_t = u8;
-pub type uint16_t = u16;
-pub type uint32_t = u32;
-pub type uint64_t = u64;
-
 pub type c_schar = i8;
 pub type c_uchar = u8;
 pub type c_short = i16;

src/lib.rs

@@ -90,27 +90,51 @@ cfg_if! {
 
 cfg_if! {
     if #[cfg(windows)] {
+        mod fixed_width_ints;
+        pub use fixed_width_ints::*;
+
         mod windows;
         pub use windows::*;
     } else if #[cfg(target_os = "cloudabi")] {
+        mod fixed_width_ints;
+        pub use fixed_width_ints::*;
+
         mod cloudabi;
         pub use cloudabi::*;
     } else if #[cfg(target_os = "fuchsia")] {
+        mod fixed_width_ints;
+        pub use fixed_width_ints::*;
+
         mod fuchsia;
         pub use fuchsia::*;
     } else if #[cfg(target_os = "switch")] {
+        mod fixed_width_ints;
+        pub use fixed_width_ints::*;
+
         mod switch;
         pub use switch::*;
     } else if #[cfg(unix)] {
+        mod fixed_width_ints;
+        pub use fixed_width_ints::*;
+
         mod unix;
         pub use unix::*;
     } else if #[cfg(target_os = "hermit")] {
+        mod fixed_width_ints;
+        pub use fixed_width_ints::*;
+
         mod hermit;
         pub use hermit::*;
     } else if #[cfg(all(target_env = "sgx", target_vendor = "fortanix"))] {
+        mod fixed_width_ints;
+        pub use fixed_width_ints::*;
+
         mod sgx;
         pub use sgx::*;
     } else if #[cfg(any(target_env = "wasi", target_os = "wasi"))] {
+        mod fixed_width_ints;
+        pub use fixed_width_ints::*;
+
         mod wasi;
         pub use wasi::*;
     } else {

src/sgx.rs

@@ -1,14 +1,5 @@
 //! SGX C types definition
 
-pub type int8_t = i8;
-pub type int16_t = i16;
-pub type int32_t = i32;
-pub type int64_t = i64;
-pub type uint8_t = u8;
-pub type uint16_t = u16;
-pub type uint32_t = u32;
-pub type uint64_t = u64;
-
 pub type c_schar = i8;
 pub type c_uchar = u8;
 pub type c_short = i16;

src/switch.rs

@@ -1,14 +1,5 @@
 //! Switch C type definitions
 
-pub type int8_t = i8;
-pub type int16_t = i16;
-pub type int32_t = i32;
-pub type int64_t = i64;
-pub type uint8_t = u8;
-pub type uint16_t = u16;
-pub type uint32_t = u32;
-pub type uint64_t = u64;
-
 pub type c_schar = i8;
 pub type c_uchar = u8;
 pub type c_short = i16;

src/unix/bsd/apple/b32.rs

@@ -39,8 +39,8 @@ s! {
 
     pub struct bpf_hdr {
         pub bh_tstamp: ::timeval,
-        pub bh_caplen: ::uint32_t,
-        pub bh_datalen: ::uint32_t,
+        pub bh_caplen: u32,
+        pub bh_datalen: u32,
         pub bh_hdrlen: ::c_ushort,
     }
 }

src/unix/bsd/apple/b64.rs

@@ -44,8 +44,8 @@ s! {
 
     pub struct bpf_hdr {
         pub bh_tstamp: ::timeval32,
-        pub bh_caplen: ::uint32_t,
-        pub bh_datalen: ::uint32_t,
+        pub bh_caplen: u32,
+        pub bh_datalen: u32,
         pub bh_hdrlen: ::c_ushort,
     }
 }