1 files changed, 17 insertions, 5 deletions
diff --git a/compiler/rustc_ast/src/expand/allocator.rs b/compiler/rustc_ast/src/expand/allocator.rs
index e87f6e820..f825b10f4 100644
--- a/compiler/rustc_ast/src/expand/allocator.rs
+++ b/compiler/rustc_ast/src/expand/allocator.rs
@@ -33,29 +33,41 @@ pub enum AllocatorTy {
 
 pub struct AllocatorMethod {
     pub name: Symbol,
-    pub inputs: &'static [AllocatorTy],
+    pub inputs: &'static [AllocatorMethodInput],
     pub output: AllocatorTy,
 }
 
+pub struct AllocatorMethodInput {
+    pub name: &'static str,
+    pub ty: AllocatorTy,
+}
+
 pub static ALLOCATOR_METHODS: &[AllocatorMethod] = &[
     AllocatorMethod {
         name: sym::alloc,
-        inputs: &[AllocatorTy::Layout],
+        inputs: &[AllocatorMethodInput { name: "layout", ty: AllocatorTy::Layout }],
         output: AllocatorTy::ResultPtr,
     },
     AllocatorMethod {
         name: sym::dealloc,
-        inputs: &[AllocatorTy::Ptr, AllocatorTy::Layout],
+        inputs: &[
+            AllocatorMethodInput { name: "ptr", ty: AllocatorTy::Ptr },
+            AllocatorMethodInput { name: "layout", ty: AllocatorTy::Layout },
+        ],
         output: AllocatorTy::Unit,
     },
     AllocatorMethod {
         name: sym::realloc,
-        inputs: &[AllocatorTy::Ptr, AllocatorTy::Layout, AllocatorTy::Usize],
+        inputs: &[
+            AllocatorMethodInput { name: "ptr", ty: AllocatorTy::Ptr },
+            AllocatorMethodInput { name: "layout", ty: AllocatorTy::Layout },
+            AllocatorMethodInput { name: "new_size", ty: AllocatorTy::Usize },
+        ],
         output: AllocatorTy::ResultPtr,
     },
     AllocatorMethod {
         name: sym::alloc_zeroed,
-        inputs: &[AllocatorTy::Layout],
+        inputs: &[AllocatorMethodInput { name: "layout", ty: AllocatorTy::Layout }],
         output: AllocatorTy::ResultPtr,
     },
 ];