rustc: Remove matching on ~str from the language

The `~str` type is not long for this world as it will be superseded by the
soon-to-come DST changes for the language. The new type will be
`~Str`, and matching over the allocation will no longer be supported.
Matching on `&str` will continue to work, in both a pre and post DST world.

1 files changed, 1 insertions, 18 deletions

diff --git a/src/libsyntax/parse/parser.rs b/src/libsyntax/parse/parser.rs
index 7760ca89eb2..676db94cd7c 100644
--- a/src/libsyntax/parse/parser.rs
+++ b/src/libsyntax/parse/parser.rs
@@ -2838,24 +2838,7 @@ impl Parser {
             // parse ~pat
             self.bump();
             let sub = self.parse_pat();
-            hi = sub.span.hi;
-            // HACK: parse ~"..." as a literal of a vstore ~str
-            pat = match sub.node {
-                PatLit(e) => {
-                    match e.node {
-                        ExprLit(lit) if lit_is_str(lit) => {
-                            let vst = @Expr {
-                                id: ast::DUMMY_NODE_ID,
-                                node: ExprVstore(e, ExprVstoreUniq),
-                                span: mk_sp(lo, hi),
-                            };
-                            PatLit(vst)
-                        }
-                        _ => PatUniq(sub)
-                    }
-                }
-                _ => PatUniq(sub)
-            };
+            pat = PatUniq(sub);
             hi = self.last_span.hi;
             return @ast::Pat {
                 id: ast::DUMMY_NODE_ID,