From bf26e13cd252a6337aa290adf842bf72e2523c4d Mon Sep 17 00:00:00 2001
From: Aleksey Kladov <aleksey.kladov@gmail.com>
Date: Mon, 10 May 2021 15:25:56 +0300
Subject: [PATCH] simplify

---
 .../src/handlers/replace_let_with_if_let.rs   | 23 ++++++++-----------
 crates/syntax/src/ast/make.rs                 |  3 +++
 2 files changed, 13 insertions(+), 13 deletions(-)

diff --git a/crates/ide_assists/src/handlers/replace_let_with_if_let.rs b/crates/ide_assists/src/handlers/replace_let_with_if_let.rs
index f811234c07..1ad0fa816c 100644
--- a/crates/ide_assists/src/handlers/replace_let_with_if_let.rs
+++ b/crates/ide_assists/src/handlers/replace_let_with_if_let.rs
@@ -50,21 +50,18 @@ pub(crate) fn replace_let_with_if_let(acc: &mut Assists, ctx: &AssistContext) ->
         "Replace with if-let",
         target,
         |edit| {
-            let with_placeholder: ast::Pat = match happy_variant {
-                None => make::wildcard_pat().into(),
-                Some(var_name) => make::tuple_struct_pat(
-                    make::ext::ident_path(var_name),
-                    once(make::wildcard_pat().into()),
-                )
-                .into(),
+            let pat = match happy_variant {
+                None => original_pat,
+                Some(var_name) => {
+                    make::tuple_struct_pat(make::ext::ident_path(var_name), once(original_pat))
+                        .into()
+                }
             };
-            let block =
-                make::block_expr(None, None).indent(IndentLevel::from_node(let_stmt.syntax()));
-            let if_ = make::expr_if(make::condition(init, Some(with_placeholder)), block, None);
-            let stmt = make::expr_stmt(if_);
 
-            let placeholder = stmt.syntax().descendants().find_map(ast::WildcardPat::cast).unwrap();
-            let stmt = stmt.replace_descendant(placeholder.into(), original_pat);
+            let block =
+                make::ext::empty_block_expr().indent(IndentLevel::from_node(let_stmt.syntax()));
+            let if_ = make::expr_if(make::condition(init, Some(pat)), block, None);
+            let stmt = make::expr_stmt(if_);
 
             edit.replace_ast(ast::Stmt::from(let_stmt), ast::Stmt::from(stmt));
         },
diff --git a/crates/syntax/src/ast/make.rs b/crates/syntax/src/ast/make.rs
index a378b1d375..1998ad1f65 100644
--- a/crates/syntax/src/ast/make.rs
+++ b/crates/syntax/src/ast/make.rs
@@ -31,6 +31,9 @@ pub mod ext {
     pub fn expr_todo() -> ast::Expr {
         expr_from_text("todo!()")
     }
+    pub fn empty_block_expr() -> ast::BlockExpr {
+        block_expr(None, None)
+    }
 
     pub fn ty_bool() -> ast::Type {
         ty_path(ident_path("bool"))