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authorDaniel Mueller <deso@posteo.net>2017-05-29 13:58:05 -0700
committerDaniel Mueller <deso@posteo.net>2017-05-29 13:58:05 -0700
commit436915453f7474117234aa0cedab6f97b3b3575f (patch)
tree85c91b6f1819835712c53d67191ca1999c021366 /gcc/src/com.rs
parent5744889d0d3a9c033913bdce499064a4760a1249 (diff)
downloadnitrocli-436915453f7474117234aa0cedab6f97b3b3575f.tar.gz
nitrocli-436915453f7474117234aa0cedab6f97b3b3575f.tar.bz2
Update gcc crate to 0.3.48
The 'gcc' create got a couple of updates. This change imports the new code and bumps the version to use. Import subrepo gcc/:gcc at 6b41873be3172415efcadbff1187a3ff42428943
Diffstat (limited to 'gcc/src/com.rs')
-rw-r--r--gcc/src/com.rs125
1 files changed, 125 insertions, 0 deletions
diff --git a/gcc/src/com.rs b/gcc/src/com.rs
new file mode 100644
index 0000000..bd8cce7
--- /dev/null
+++ b/gcc/src/com.rs
@@ -0,0 +1,125 @@
+// Copyright © 2017 winapi-rs developers
+// Licensed under the Apache License, Version 2.0
+// <LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
+// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your option.
+// All files in the project carrying such notice may not be copied, modified, or distributed
+// except according to those terms.
+
+#![allow(unused)]
+
+use std::ffi::{OsStr, OsString};
+use std::mem::forget;
+use std::ops::Deref;
+use std::os::windows::ffi::{OsStrExt, OsStringExt};
+use std::ptr::null_mut;
+use std::slice::from_raw_parts;
+use winapi::Interface;
+use winapi::BSTR;
+use winapi::CoInitializeEx;
+use winapi::COINIT_MULTITHREADED;
+use winapi::{SysFreeString, SysStringLen};
+use winapi::IUnknown;
+use winapi::{S_OK, S_FALSE, HRESULT};
+
+pub fn initialize() -> Result<(), HRESULT> {
+ let err = unsafe { CoInitializeEx(null_mut(), COINIT_MULTITHREADED) };
+ if err != S_OK && err != S_FALSE {
+ // S_FALSE just means COM is already initialized
+ return Err(err);
+ }
+ Ok(())
+}
+
+pub struct ComPtr<T>(*mut T) where T: Interface;
+impl<T> ComPtr<T> where T: Interface {
+ /// Creates a `ComPtr` to wrap a raw pointer.
+ /// It takes ownership over the pointer which means it does __not__ call `AddRef`.
+ /// `T` __must__ be a COM interface that inherits from `IUnknown`.
+ pub unsafe fn from_raw(ptr: *mut T) -> ComPtr<T> {
+ assert!(!ptr.is_null());
+ ComPtr(ptr)
+ }
+ /// Casts up the inheritance chain
+ pub fn up<U>(self) -> ComPtr<U> where T: Deref<Target=U>, U: Interface {
+ ComPtr(self.into_raw() as *mut U)
+ }
+ /// Extracts the raw pointer.
+ /// You are now responsible for releasing it yourself.
+ pub fn into_raw(self) -> *mut T {
+ let p = self.0;
+ forget(self);
+ p
+ }
+ /// For internal use only.
+ fn as_unknown(&self) -> &IUnknown {
+ unsafe { &*(self.0 as *mut IUnknown) }
+ }
+ /// Performs QueryInterface fun.
+ pub fn cast<U>(&self) -> Result<ComPtr<U>, i32> where U: Interface {
+ let mut obj = null_mut();
+ let err = unsafe { self.as_unknown().QueryInterface(&U::uuidof(), &mut obj) };
+ if err < 0 { return Err(err); }
+ Ok(unsafe { ComPtr::from_raw(obj as *mut U) })
+ }
+}
+impl<T> Deref for ComPtr<T> where T: Interface {
+ type Target = T;
+ fn deref(&self) -> &T {
+ unsafe { &*self.0 }
+ }
+}
+impl<T> Clone for ComPtr<T> where T: Interface {
+ fn clone(&self) -> Self {
+ unsafe {
+ self.as_unknown().AddRef();
+ ComPtr::from_raw(self.0)
+ }
+ }
+}
+impl<T> Drop for ComPtr<T> where T: Interface {
+ fn drop(&mut self) {
+ unsafe { self.as_unknown().Release(); }
+ }
+}
+pub struct BStr(BSTR);
+impl BStr {
+ pub unsafe fn from_raw(s: BSTR) -> BStr {
+ BStr(s)
+ }
+ pub fn to_osstring(&self) -> OsString {
+ let len = unsafe { SysStringLen(self.0) };
+ let slice = unsafe { from_raw_parts(self.0, len as usize) };
+ OsStringExt::from_wide(slice)
+ }
+}
+impl Drop for BStr {
+ fn drop(&mut self) {
+ unsafe { SysFreeString(self.0) };
+ }
+}
+
+pub trait ToWide {
+ fn to_wide(&self) -> Vec<u16>;
+ fn to_wide_null(&self) -> Vec<u16>;
+}
+impl<T> ToWide for T where T: AsRef<OsStr> {
+ fn to_wide(&self) -> Vec<u16> {
+ self.as_ref().encode_wide().collect()
+ }
+ fn to_wide_null(&self) -> Vec<u16> {
+ self.as_ref().encode_wide().chain(Some(0)).collect()
+ }
+}
+pub trait FromWide where Self: Sized {
+ fn from_wide(wide: &[u16]) -> Self;
+ fn from_wide_null(wide: &[u16]) -> Self {
+ let len = wide.iter().take_while(|&&c| c != 0).count();
+ Self::from_wide(&wide[..len])
+ }
+}
+impl FromWide for OsString {
+ fn from_wide(wide: &[u16]) -> OsString {
+ OsStringExt::from_wide(wide)
+ }
+}
+