Inline make_if macro

Author: camsteffen

compiler/rustc_ast_lowering/src/expr.rs

@@ -442,18 +442,10 @@ impl<'hir> LoweringContext<'_, 'hir> {
         then: &Block,
         else_opt: Option<&Expr>,
     ) -> hir::ExprKind<'hir> {
-        macro_rules! make_if {
-            ($opt:expr) => {{
-                let cond = self.lower_expr(cond);
-                let then_expr = self.lower_block_expr(then);
-                hir::ExprKind::If(cond, self.arena.alloc(then_expr), $opt)
-            }};
-        }
-        if let Some(rslt) = else_opt {
-            make_if!(Some(self.lower_expr(rslt)))
-        } else {
-            make_if!(None)
-        }
+        let cond = self.lower_expr(cond);
+        let then = self.arena.alloc(self.lower_block_expr(then));
+        let els = else_opt.map(|els| self.lower_expr(els));
+        hir::ExprKind::If(cond, then, els)
     }
 
     fn lower_expr_if_let(