"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);
+ 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_);
- let placeholder = stmt.syntax().descendants().find_map(ast::WildcardPat::cast).unwrap();
- let stmt = stmt.replace_descendant(placeholder.into(), original_pat);
-
edit.replace_ast(ast::Stmt::from(let_stmt), ast::Stmt::from(stmt));
},
)
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"))