Merge pull request rust-lang#1525 from emilio/llvm-bug-workaround

Work-around https://bugs.llvm.org/show_bug.cgi?id=40813.

Author: emilio

CHANGELOG.md

@@ -9,46 +9,51 @@
   - [Removed](#removed)
   - [Fixed](#fixed)
   - [Security](#security)
-- [0.47.0](#0470)
-  - [Changed](#changed-1)
+- [0.47.2](#0472)
   - [Fixed](#fixed-1)
+- [0.47.1](#0471)
+  - [Changed](#changed-1)
+  - [Fixed](#fixed-2)
+- [0.47.0](#0470)
+  - [Changed](#changed-2)
+  - [Fixed](#fixed-3)
 - [0.33.1 .. 0.46.0](#0331--0460)
   - [Added](#added-1)
   - [Removed](#removed-1)
-  - [Changed](#changed-2)
-  - [Fixed](#fixed-2)
+  - [Changed](#changed-3)
+  - [Fixed](#fixed-4)
 - [0.33.1](#0331)
-  - [Fixed](#fixed-3)
+  - [Fixed](#fixed-5)
 - [0.33.0](#0330)
   - [Added](#added-2)
-  - [Changed](#changed-3)
+  - [Changed](#changed-4)
   - [Deprecated](#deprecated-1)
   - [Removed](#removed-2)
-  - [Fixed](#fixed-4)
+  - [Fixed](#fixed-6)
   - [Security](#security-1)
 - [0.32.2](#0322)
-  - [Fixed](#fixed-5)
+  - [Fixed](#fixed-7)
 - [0.32.1](#0321)
-  - [Fixed](#fixed-6)
+  - [Fixed](#fixed-8)
 - [0.32.0](#0320)
   - [Added](#added-3)
-  - [Changed](#changed-4)
-  - [Fixed](#fixed-7)
+  - [Changed](#changed-5)
+  - [Fixed](#fixed-9)
 - [0.31.0](#0310)
   - [Added](#added-4)
-  - [Changed](#changed-5)
+  - [Changed](#changed-6)
   - [Deprecated](#deprecated-2)
   - [Removed](#removed-3)
-  - [Fixed](#fixed-8)
+  - [Fixed](#fixed-10)
 - [0.30.0](#0300)
   - [Added](#added-5)
-  - [Changed](#changed-6)
+  - [Changed](#changed-7)
   - [Deprecated](#deprecated-3)
-  - [Fixed](#fixed-9)
+  - [Fixed](#fixed-11)
 - [0.29.0](#0290)
   - [Added](#added-6)
-  - [Changed](#changed-7)
-  - [Fixed](#fixed-10)
+  - [Changed](#changed-8)
+  - [Fixed](#fixed-12)
 
 <!-- END doctoc generated TOC please keep comment here to allow auto update -->
 
@@ -84,6 +89,43 @@ Released YYYY/MM/DD
 
 --------------------------------------------------------------------------------
 
+# 0.47.2
+
+Released 2019/02/22
+
+## Fixed
+
+* @flowbish fixed code generation for nested function prototypes. [#1508][]
+* Some complex C++ constructs no longer panic on code generation [#1513][]
+* Implicit template parameters are now appended to base classes [#1515][]
+* @flier fixed single-argument block pointers [#1519][]
+* Bindgen won't panic when parsing an undeduced auto type [#1525][]
+
+[#1508]: https://github.com/rust-lang-nursery/rust-bindgen/issues/1508
+[#1513]: https://github.com/rust-lang-nursery/rust-bindgen/issues/1513
+[#1515]: https://github.com/rust-lang-nursery/rust-bindgen/issues/1515
+[#1519]: https://github.com/rust-lang-nursery/rust-bindgen/issues/1519
+[#1525]: https://github.com/rust-lang-nursery/rust-bindgen/issues/1525
+
+--------------------------------------------------------------------------------
+
+# 0.47.1
+
+Released 2019/02/02
+
+## Changed
+
+* @luser improved the error message when rustfmt cannot be found [#1501][]
+
+## Fixed
+
+* Reverted `clang-sys` update for regressions [#1505][]
+
+[#1505]: https://github.com/rust-lang-nursery/rust-bindgen/issues/1505
+[#1501]: https://github.com/rust-lang-nursery/rust-bindgen/issues/1501
+
+--------------------------------------------------------------------------------
+
 # 0.47.0
 
 Released 2019/01/19

Cargo.lock

@@ -14,7 +14,7 @@ readme = "README.md"
 repository = "https://github.com/rust-lang/rust-bindgen"
 documentation = "https://docs.rs/bindgen"
 homepage = "https://rust-lang.github.io/rust-bindgen/"
-version = "0.47.1"
+version = "0.47.2"
 build = "build.rs"
 
 include = [

Cargo.toml

@@ -931,18 +931,37 @@ impl Type {
         unsafe { clang_isConstQualifiedType(self.x) != 0 }
     }
 
+    #[inline]
+    fn is_non_deductible_auto_type(&self) -> bool {
+        self.kind() == CXType_Auto && self.canonical_type() == *self
+    }
+
+    #[inline]
+    fn clang_size_of(&self) -> c_longlong {
+        if self.is_non_deductible_auto_type() {
+            return -6; // Work-around https://bugs.llvm.org/show_bug.cgi?id=40813
+        }
+        unsafe { clang_Type_getSizeOf(self.x) }
+    }
+
+    #[inline]
+    fn clang_align_of(&self) -> c_longlong {
+        if self.is_non_deductible_auto_type() {
+            return -6; // Work-around https://bugs.llvm.org/show_bug.cgi?id=40813
+        }
+        unsafe { clang_Type_getAlignOf(self.x) }
+    }
+
     /// What is the size of this type? Paper over invalid types by returning `0`
     /// for them.
     pub fn size(&self) -> usize {
-        unsafe {
-            let val = clang_Type_getSizeOf(self.x);
-            if val < 0 { 0 } else { val as usize }
-        }
+        let val = self.clang_size_of();
+        if val < 0 { 0 } else { val as usize }
     }
 
     /// What is the size of this type?
     pub fn fallible_size(&self) -> Result<usize, LayoutError> {
-        let val = unsafe { clang_Type_getSizeOf(self.x) };
+        let val = self.clang_size_of();
         if val < 0 {
             Err(LayoutError::from(val as i32))
         } else {
@@ -953,21 +972,17 @@ impl Type {
     /// What is the alignment of this type? Paper over invalid types by
     /// returning `0`.
     pub fn align(&self) -> usize {
-        unsafe {
-            let val = clang_Type_getAlignOf(self.x);
-            if val < 0 { 0 } else { val as usize }
-        }
+        let val = self.clang_align_of();
+        if val < 0 { 0 } else { val as usize }
     }
 
     /// What is the alignment of this type?
     pub fn fallible_align(&self) -> Result<usize, LayoutError> {
-        unsafe {
-            let val = clang_Type_getAlignOf(self.x);
-            if val < 0 {
-                Err(LayoutError::from(val as i32))
-            } else {
-                Ok(val as usize)
-            }
+        let val = self.clang_align_of();
+        if val < 0 {
+            Err(LayoutError::from(val as i32))
+        } else {
+            Ok(val as usize)
         }
     }
 

src/clang.rs

@@ -0,0 +1,27 @@
+/* automatically generated by rust-bindgen */
+
+#![allow(
+    dead_code,
+    non_snake_case,
+    non_camel_case_types,
+    non_upper_case_globals
+)]
+
+#[repr(C)]
+#[derive(Debug, Default, Copy, Clone)]
+pub struct BrowsingContext {
+    pub _address: u8,
+}
+#[test]
+fn bindgen_test_layout_BrowsingContext() {
+    assert_eq!(
+        ::std::mem::size_of::<BrowsingContext>(),
+        1usize,
+        concat!("Size of: ", stringify!(BrowsingContext))
+    );
+    assert_eq!(
+        ::std::mem::align_of::<BrowsingContext>(),
+        1usize,
+        concat!("Alignment of ", stringify!(BrowsingContext))
+    );
+}

tests/expectations/tests/bug-1529681.rs

@@ -0,0 +1,8 @@
+// bindgen-flags: -- -std=c++14
+//
+// https://bugzilla.mozilla.org/show_bug.cgi?id=1529681
+// https://bugs.llvm.org/show_bug.cgi?id=40813
+
+class BrowsingContext {
+  auto Tie(void* aUnused) const;
+};