libsyntax: Remove unused `MultiRenamer`
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@ -493,13 +493,14 @@ fn expand_non_macro_stmt(s: &Stmt, fld: &mut MacroExpander)
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let mut name_finder = new_name_finder(~[]);
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name_finder.visit_pat(expanded_pat,());
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// generate fresh names, push them to a new pending list
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let new_pending_renames = @mut ~[];
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let mut new_pending_renames = ~[];
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for ident in name_finder.ident_accumulator.iter() {
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let new_name = fresh_name(ident);
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new_pending_renames.push((*ident,new_name));
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}
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let rewritten_pat = {
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let mut rename_fld = renames_to_fold(new_pending_renames);
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let mut rename_fld =
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renames_to_fold(&mut new_pending_renames);
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// rewrite the pattern using the new names (the old ones
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// have already been applied):
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rename_fld.fold_pat(expanded_pat)
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@ -981,21 +982,6 @@ impl CtxtFn for Renamer {
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}
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}
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// a renamer that performs a whole bunch of renames
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pub struct MultiRenamer {
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renames : @mut ~[(ast::Ident,ast::Name)]
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}
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impl CtxtFn for MultiRenamer {
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fn f(&self, starting_ctxt : ast::SyntaxContext) -> ast::SyntaxContext {
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// the individual elements are memoized... it would
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// also be possible to memoize on the whole list at once.
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self.renames.iter().fold(starting_ctxt,|ctxt,&(from,to)| {
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new_rename(from,to,ctxt)
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})
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}
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}
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// a marker adds the given mark to the syntax context
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pub struct Marker { mark : Mrk }
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