// Iterates from top to bottom of the stack.
fn next(&mut self) -> Option<&'a T> {
- match *self {
+ match self {
Stack::Empty => None,
- Stack::Push { ref top, ref prev } => {
+ Stack::Push { top, prev } => {
*self = prev;
Some(top)
}
// We check that the meta-variable is correctly used.
check_occurrences(sess, node_id, tt, macros, binders, ops, valid);
}
- (NestedMacroState::MacroRulesNotName, &TokenTree::Delimited(_, ref del))
- | (NestedMacroState::MacroName, &TokenTree::Delimited(_, ref del))
+ (NestedMacroState::MacroRulesNotName, TokenTree::Delimited(_, del))
+ | (NestedMacroState::MacroName, TokenTree::Delimited(_, del))
if del.delim == Delimiter::Brace =>
{
let macro_rules = state == NestedMacroState::MacroRulesNotName;
// We check that the meta-variable is correctly used.
check_occurrences(sess, node_id, tt, macros, binders, ops, valid);
}
- (NestedMacroState::MacroName, &TokenTree::Delimited(_, ref del))
+ (NestedMacroState::MacroName, TokenTree::Delimited(_, del))
if del.delim == Delimiter::Parenthesis =>
{
state = NestedMacroState::MacroNameParen;
valid,
);
}
- (NestedMacroState::MacroNameParen, &TokenTree::Delimited(_, ref del))
+ (NestedMacroState::MacroNameParen, TokenTree::Delimited(_, del))
if del.delim == Delimiter::Brace =>
{
state = NestedMacroState::Empty;
valid,
);
}
- (_, ref tt) => {
+ (_, tt) => {
state = NestedMacroState::Empty;
check_occurrences(sess, node_id, tt, macros, binders, ops, valid);
}