bendns' repos / rust-analyzer
Unnamed repository; edit this file 'description' to name the repository.
Diffstat (limited to 'crates/cfg/src/cfg_expr.rs')
-rw-r--r--crates/cfg/src/cfg_expr.rs59
1 files changed, 0 insertions, 59 deletions
diff --git a/crates/cfg/src/cfg_expr.rs b/crates/cfg/src/cfg_expr.rs
index 76e0aba859..7a21015e14 100644
--- a/crates/cfg/src/cfg_expr.rs
+++ b/crates/cfg/src/cfg_expr.rs
@@ -63,8 +63,6 @@ impl From<CfgAtom> for CfgExpr {
}
impl CfgExpr {
- // FIXME: Parsing from `tt` is only used in a handful of places, reconsider
- // if we should switch them to AST.
#[cfg(feature = "tt")]
pub fn parse<S: Copy>(tt: &tt::TopSubtree<S>) -> CfgExpr {
next_cfg_expr(&mut tt.iter()).unwrap_or(CfgExpr::Invalid)
@@ -75,13 +73,6 @@ impl CfgExpr {
next_cfg_expr(tt).unwrap_or(CfgExpr::Invalid)
}
- #[cfg(feature = "syntax")]
- pub fn parse_from_ast(
- ast: &mut std::iter::Peekable<syntax::ast::TokenTreeChildren>,
- ) -> CfgExpr {
- next_cfg_expr_from_ast(ast).unwrap_or(CfgExpr::Invalid)
- }
-
/// Fold the cfg by querying all basic `Atom` and `KeyValue` predicates.
pub fn fold(&self, query: &dyn Fn(&CfgAtom) -> bool) -> Option<bool> {
match self {
@@ -98,56 +89,6 @@ impl CfgExpr {
}
}
-#[cfg(feature = "syntax")]
-fn next_cfg_expr_from_ast(
- it: &mut std::iter::Peekable<syntax::ast::TokenTreeChildren>,
-) -> Option<CfgExpr> {
- use intern::sym;
- use syntax::{NodeOrToken, SyntaxKind, T, ast};
-
- let name = match it.next() {
- None => return None,
- Some(NodeOrToken::Token(ident)) if ident.kind().is_any_identifier() => {
- Symbol::intern(ident.text())
- }
- Some(_) => return Some(CfgExpr::Invalid),
- };
-
- let ret = match it.peek() {
- Some(NodeOrToken::Token(eq)) if eq.kind() == T![=] => {
- it.next();
- if let Some(NodeOrToken::Token(literal)) = it.peek()
- && matches!(literal.kind(), SyntaxKind::STRING)
- {
- let literal = tt::token_to_literal(literal.text(), ()).symbol;
- it.next();
- CfgAtom::KeyValue { key: name, value: literal.clone() }.into()
- } else {
- return Some(CfgExpr::Invalid);
- }
- }
- Some(NodeOrToken::Node(subtree)) => {
- let mut subtree_iter = ast::TokenTreeChildren::new(subtree).peekable();
- it.next();
- let mut subs = std::iter::from_fn(|| next_cfg_expr_from_ast(&mut subtree_iter));
- match name {
- s if s == sym::all => CfgExpr::All(subs.collect()),
- s if s == sym::any => CfgExpr::Any(subs.collect()),
- s if s == sym::not => {
- CfgExpr::Not(Box::new(subs.next().unwrap_or(CfgExpr::Invalid)))
- }
- _ => CfgExpr::Invalid,
- }
- }
- _ => CfgAtom::Flag(name).into(),
- };
-
- // Eat comma separator
- while it.next().is_some_and(|it| it.as_token().is_none_or(|it| it.kind() != T![,])) {}
-
- Some(ret)
-}
-
#[cfg(feature = "tt")]
fn next_cfg_expr<S: Copy>(it: &mut tt::iter::TtIter<'_, S>) -> Option<CfgExpr> {
use intern::sym;