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simplify

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This commit is contained in:
Aleksey Kladov 2021-05-10 15:25:56 +03:00
parent fd109fb587
commit bf26e13cd2
2 changed files with 13 additions and 13 deletions
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23
crates/ide_assists/src/handlers/replace_let_with_if_let.rs
View File

@ -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));
},

3
crates/syntax/src/ast/make.rs
View File

@ -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"))