1 files changed, 5 insertions, 0 deletions
diff --git a/src/libsyntax/ext/build.rs b/src/libsyntax/ext/build.rs
index 062f3ce1127..084b5c3bb55 100644
--- a/src/libsyntax/ext/build.rs
+++ b/src/libsyntax/ext/build.rs
@@ -139,6 +139,7 @@ pub trait AstBuilder {
     fn expr_usize(&self, span: Span, i: usize) -> P<ast::Expr>;
     fn expr_isize(&self, sp: Span, i: isize) -> P<ast::Expr>;
     fn expr_u8(&self, sp: Span, u: u8) -> P<ast::Expr>;
+    fn expr_u16(&self, sp: Span, u: u16) -> P<ast::Expr>;
     fn expr_u32(&self, sp: Span, u: u32) -> P<ast::Expr>;
     fn expr_bool(&self, sp: Span, value: bool) -> P<ast::Expr>;
 
@@ -708,6 +709,10 @@ impl<'a> AstBuilder for ExtCtxt<'a> {
         self.expr_lit(sp, ast::LitKind::Int(u as u128,
                                             ast::LitIntType::Unsigned(ast::UintTy::U32)))
     }
+    fn expr_u16(&self, sp: Span, u: u16) -> P<ast::Expr> {
+        self.expr_lit(sp, ast::LitKind::Int(u as u128,
+                                            ast::LitIntType::Unsigned(ast::UintTy::U16)))
+    }
     fn expr_u8(&self, sp: Span, u: u8) -> P<ast::Expr> {
         self.expr_lit(sp, ast::LitKind::Int(u as u128, ast::LitIntType::Unsigned(ast::UintTy::U8)))
     }