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rustc: Remove matching on ~str from the language

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The `~str` type is not long for this world as it will be superseded by the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.
This commit is contained in:
Michael Darakananda 2014-03-07 16:15:50 -05:00
parent 3316a0e6b2
commit f079c94f72
17 changed files with 57 additions and 110 deletions
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19
src/libsyntax/parse/parser.rs
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@ -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,