Add repr attributes in various places that need them.

Author: jld

src/libextra/enum_set.rs

@@ -139,7 +139,7 @@ mod test {
 
     use enum_set::*;
 
-    #[deriving(Eq)]
+    #[deriving(Eq)] #[repr(uint)]
     enum Foo {
         A, B, C
     }

src/librustc/lib/llvm.rs

@@ -147,6 +147,7 @@ pub static Vector: TypeKind    = 13;
 pub static Metadata: TypeKind  = 14;
 pub static X86_MMX: TypeKind   = 15;
 
+#[repr(C)]
 pub enum AtomicBinOp {
     Xchg = 0,
     Add  = 1,
@@ -161,6 +162,7 @@ pub enum AtomicBinOp {
     UMin = 10,
 }
 
+#[repr(C)]
 pub enum AtomicOrdering {
     NotAtomic = 0,
     Unordered = 1,
@@ -173,6 +175,7 @@ pub enum AtomicOrdering {
 }
 
 // Consts for the LLVMCodeGenFileType type (in include/llvm/c/TargetMachine.h)
+#[repr(C)]
 pub enum FileType {
     AssemblyFile = 0,
     ObjectFile = 1
@@ -194,20 +197,23 @@ pub enum AsmDialect {
 }
 
 #[deriving(Eq)]
+#[repr(C)]
 pub enum CodeGenOptLevel {
     CodeGenLevelNone = 0,
     CodeGenLevelLess = 1,
     CodeGenLevelDefault = 2,
     CodeGenLevelAggressive = 3,
 }
 
+#[repr(C)]
 pub enum RelocMode {
     RelocDefault = 0,
     RelocStatic = 1,
     RelocPIC = 2,
     RelocDynamicNoPic = 3,
 }
 
+#[repr(C)]
 pub enum CodeGenModel {
     CodeModelDefault = 0,
     CodeModelJITDefault = 1,

src/librustc/metadata/common.rs

@@ -111,7 +111,7 @@ pub static tag_items_data_item_reexport_def_id: uint = 0x4e;
 pub static tag_items_data_item_reexport_name: uint = 0x4f;
 
 // used to encode crate_ctxt side tables
-#[deriving(Eq)]
+#[deriving(Eq)] #[repr(uint)]
 pub enum astencode_tag { // Reserves 0x50 -- 0x6f
     tag_ast = 0x50,
 
@@ -143,7 +143,7 @@ impl astencode_tag {
     pub fn from_uint(value : uint) -> Option<astencode_tag> {
         let is_a_tag = first_astencode_tag <= value && value <= last_astencode_tag;
         if !is_a_tag { None } else {
-            Some(unsafe { cast::transmute(value as int) })
+            Some(unsafe { cast::transmute(value) })
         }
     }
 }

src/librustc/middle/ty.rs

@@ -715,7 +715,7 @@ pub struct ParamBounds {
 
 pub type BuiltinBounds = EnumSet<BuiltinBound>;
 
-#[deriving(Clone, Eq, IterBytes, ToStr)]
+#[deriving(Clone, Eq, IterBytes, ToStr)] #[repr(uint)]
 pub enum BuiltinBound {
     BoundStatic,
     BoundSend,

src/libstd/rt/io/signal.rs

@@ -26,6 +26,7 @@ use result::{Err, Ok};
 use rt::io::io_error;
 use rt::rtio::{IoFactory, RtioSignal, with_local_io};
 
+#[repr(int)]
 #[deriving(Eq, IterBytes)]
 pub enum Signum {
     /// Equivalent to SIGBREAK, delivered when the user presses Ctrl-Break.

src/test/run-pass/issue-2718.rs

@@ -26,7 +26,7 @@ pub mod pipes {
         payload: Option<T>
     }
 
-    #[deriving(Eq)]
+    #[deriving(Eq)] #[repr(int)]
     pub enum state {
         empty,
         full,