bjoernager/rust
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Rework Attribute::get_tokens.

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Returning `Vec<TokenTree>` works better for the call sites than
returning `TokenStream`.
This commit is contained in:
Nicholas Nethercote 2024-07-10 14:51:41 +10:00
parent 8a390bae06
commit fee152556f
3 changed files with 16 additions and 20 deletions
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4
compiler/rustc_expand/src/config.rs
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@ -292,8 +292,6 @@ impl<'a> StripUnconfigured<'a> {
attr: &Attribute,
(item, item_span): (ast::AttrItem, Span),
) -> Attribute {
let orig_tokens = attr.get_tokens();
// We are taking an attribute of the form `#[cfg_attr(pred, attr)]`
// and producing an attribute of the form `#[attr]`. We
// have captured tokens for `attr` itself, but we need to
@ -302,7 +300,7 @@ impl<'a> StripUnconfigured<'a> {
// Use the `#` in `#[cfg_attr(pred, attr)]` as the `#` token
// for `attr` when we expand it to `#[attr]`
let mut orig_trees = orig_tokens.trees();
let mut orig_trees = attr.token_trees().into_iter();
let TokenTree::Token(pound_token @ Token { kind: TokenKind::Pound, .. }, _) =
orig_trees.next().unwrap().clone()
else {