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Turn on box(PLACE) expr deprecation warning post-snapshot.

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This commit is contained in:
Eduard Burtescu
2015-07-27 18:11:43 +03:00
parent 5720f7055a
commit cc09b1a08c
11 changed files with 20 additions and 13 deletions
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18
src/libsyntax/parse/parser.rs
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@@ -2637,19 +2637,15 @@ impl<'a> Parser<'a> {
//
// ... but for now: check for a place: `box(PLACE) EXPR`.
if try!(self.eat(&token::OpenDelim(token::Paren)) ){
// SNAP d4432b3
// Enable this warning after snapshot ...
//
// let box_span = mk_sp(lo, self.last_span.hi);
// self.span_warn(
// box_span,
// "deprecated syntax; use the `in` keyword now \
// (e.g. change `box (<expr>) <expr>` to \
// `in <expr> { <expr> }`)");
if try!(self.eat(&token::OpenDelim(token::Paren))) {
let box_span = mk_sp(lo, self.last_span.hi);
self.span_warn(box_span,
"deprecated syntax; use the `in` keyword now \
(e.g. change `box (<expr>) <expr>` to \
`in <expr> { <expr> }`)");
// Continue supporting `box () EXPR` (temporarily)
if !try!(self.eat(&token::CloseDelim(token::Paren)) ){
if !try!(self.eat(&token::CloseDelim(token::Paren))) {
let place = try!(self.parse_expr_nopanic());
try!(self.expect(&token::CloseDelim(token::Paren)));
// Give a suggestion to use `box()` when a parenthesised expression is used