Rename variadic to c_variadic

Function signatures with the `variadic` member set are actually
C-variadic functions. Make this a little more explicit by renaming the
`variadic` boolean value, `c_variadic`.

5 files changed, 13 insertions, 13 deletions

diff --git a/src/librustc/ty/context.rs b/src/librustc/ty/context.rs
index b37b632f4be..9767396147c 100644
--- a/src/librustc/ty/context.rs
+++ b/src/librustc/ty/context.rs
@@ -2453,7 +2453,7 @@ impl<'a, 'gcx, 'tcx> TyCtxt<'a, 'gcx, 'tcx> {
             self.mk_fn_sig(
                 params_iter,
                 s.output(),
-                s.variadic,
+                s.c_variadic,
                 hir::Unsafety::Normal,
                 abi::Abi::Rust,
             )
@@ -2779,7 +2779,7 @@ impl<'a, 'gcx, 'tcx> TyCtxt<'a, 'gcx, 'tcx> {
     pub fn mk_fn_sig<I>(self,
                         inputs: I,
                         output: I::Item,
-                        variadic: bool,
+                        c_variadic: bool,
                         unsafety: hir::Unsafety,
                         abi: abi::Abi)
         -> <I::Item as InternIteratorElement<Ty<'tcx>, ty::FnSig<'tcx>>>::Output
@@ -2788,7 +2788,7 @@ impl<'a, 'gcx, 'tcx> TyCtxt<'a, 'gcx, 'tcx> {
     {
         inputs.chain(iter::once(output)).intern_with(|xs| ty::FnSig {
             inputs_and_output: self.intern_type_list(xs),
-            variadic, unsafety, abi
+            c_variadic, unsafety, abi
         })
     }
 
diff --git a/src/librustc/ty/instance.rs b/src/librustc/ty/instance.rs
index 709dce4589f..49ebd202813 100644
--- a/src/librustc/ty/instance.rs
+++ b/src/librustc/ty/instance.rs
@@ -65,7 +65,7 @@ impl<'a, 'tcx> Instance<'tcx> {
                 sig.map_bound(|sig| tcx.mk_fn_sig(
                     iter::once(*env_ty.skip_binder()).chain(sig.inputs().iter().cloned()),
                     sig.output(),
-                    sig.variadic,
+                    sig.c_variadic,
                     sig.unsafety,
                     sig.abi
                 ))
diff --git a/src/librustc/ty/relate.rs b/src/librustc/ty/relate.rs
index b15aa862901..2940757fa90 100644
--- a/src/librustc/ty/relate.rs
+++ b/src/librustc/ty/relate.rs
@@ -147,9 +147,9 @@ impl<'tcx> Relate<'tcx> for ty::FnSig<'tcx> {
     {
         let tcx = relation.tcx();
 
-        if a.variadic != b.variadic {
+        if a.c_variadic != b.c_variadic {
             return Err(TypeError::VariadicMismatch(
-                expected_found(relation, &a.variadic, &b.variadic)));
+                expected_found(relation, &a.c_variadic, &b.c_variadic)));
         }
         let unsafety = relation.relate(&a.unsafety, &b.unsafety)?;
         let abi = relation.relate(&a.abi, &b.abi)?;
@@ -171,7 +171,7 @@ impl<'tcx> Relate<'tcx> for ty::FnSig<'tcx> {
             });
         Ok(ty::FnSig {
             inputs_and_output: tcx.mk_type_list(inputs_and_output)?,
-            variadic: a.variadic,
+            c_variadic: a.c_variadic,
             unsafety,
             abi,
         })
diff --git a/src/librustc/ty/structural_impls.rs b/src/librustc/ty/structural_impls.rs
index a81d5c9d86e..f1a465e1f17 100644
--- a/src/librustc/ty/structural_impls.rs
+++ b/src/librustc/ty/structural_impls.rs
@@ -396,7 +396,7 @@ impl<'a, 'tcx> Lift<'tcx> for ty::FnSig<'a> {
         tcx.lift(&self.inputs_and_output).map(|x| {
             ty::FnSig {
                 inputs_and_output: x,
-                variadic: self.variadic,
+                c_variadic: self.c_variadic,
                 unsafety: self.unsafety,
                 abi: self.abi,
             }
@@ -832,7 +832,7 @@ BraceStructTypeFoldableImpl! {
 
 BraceStructTypeFoldableImpl! {
     impl<'tcx> TypeFoldable<'tcx> for ty::FnSig<'tcx> {
-        inputs_and_output, variadic, unsafety, abi
+        inputs_and_output, c_variadic, unsafety, abi
     }
 }
 
diff --git a/src/librustc/ty/sty.rs b/src/librustc/ty/sty.rs
index 7ade035ce89..3fd2e38a3d3 100644
--- a/src/librustc/ty/sty.rs
+++ b/src/librustc/ty/sty.rs
@@ -979,11 +979,11 @@ impl<'tcx> PolyGenSig<'tcx> {
 ///
 /// - `inputs`: is the list of arguments and their modes.
 /// - `output`: is the return type.
-/// - `variadic`: indicates whether this is a C-variadic function.
+/// - `c_variadic`: indicates whether this is a C-variadic function.
 #[derive(Copy, Clone, PartialEq, Eq, PartialOrd, Ord, Hash, RustcEncodable, RustcDecodable)]
 pub struct FnSig<'tcx> {
     pub inputs_and_output: &'tcx List<Ty<'tcx>>,
-    pub variadic: bool,
+    pub c_variadic: bool,
     pub unsafety: hir::Unsafety,
     pub abi: abi::Abi,
 }
@@ -1016,8 +1016,8 @@ impl<'tcx> PolyFnSig<'tcx> {
     pub fn output(&self) -> ty::Binder<Ty<'tcx>> {
         self.map_bound_ref(|fn_sig| fn_sig.output())
     }
-    pub fn variadic(&self) -> bool {
-        self.skip_binder().variadic
+    pub fn c_variadic(&self) -> bool {
+        self.skip_binder().c_variadic
     }
     pub fn unsafety(&self) -> hir::Unsafety {
         self.skip_binder().unsafety