bjoernager/rust
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librustc: Disallow "mut" from distributing over bindings.

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This is the backwards-incompatible part of per-binding-site "mut".
This commit is contained in:
Patrick Walton 2013-06-06 18:54:14 -07:00 • committed by Corey Richardson
parent 1c0aa78481
commit f9b54541ee
32 changed files with 190 additions and 50 deletions
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16
src/libsyntax/parse/parser.rs
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@ -83,7 +83,8 @@ use parse::obsolete::{ObsoleteLifetimeNotation, ObsoleteConstManagedPointer};
use parse::obsolete::{ObsoletePurity, ObsoleteStaticMethod};
use parse::obsolete::{ObsoleteConstItem, ObsoleteFixedLengthVectorType};
use parse::obsolete::{ObsoleteNamedExternModule, ObsoleteMultipleLocalDecl};
use parse::token::{can_begin_expr, get_ident_interner, ident_to_str, is_ident, is_ident_or_path};
use parse::obsolete::{ObsoleteMutWithMultipleBindings};
use parse::token::{can_begin_expr, get_ident_interner, is_ident, is_ident_or_path};
use parse::token::{is_plain_ident, INTERPOLATED, keywords, special_idents, token_to_binop};
use parse::token;
use parse::{new_sub_parser_from_file, next_node_id, ParseSess};
@ -821,6 +822,11 @@ impl Parser {
self.parse_arg_mode();
is_mutbl = self.eat_keyword(keywords::Mut);
let pat = self.parse_pat();
if is_mutbl && !ast_util::pat_is_ident(pat) {
self.obsolete(*self.span, ObsoleteMutWithMultipleBindings)
}
self.expect(&token::COLON);
pat
} else {
@ -2560,6 +2566,11 @@ impl Parser {
fn parse_local(&self, is_mutbl: bool) -> @local {
let lo = self.span.lo;
let pat = self.parse_pat();
if is_mutbl && !ast_util::pat_is_ident(pat) {
self.obsolete(*self.span, ObsoleteMutWithMultipleBindings)
}
let mut ty = @Ty {
id: self.get_id(),
node: ty_infer,
@ -4420,7 +4431,8 @@ impl Parser {
let mut attrs = vec::append(first_item_attrs,
self.parse_outer_attributes());
// First, parse view items.
let mut (view_items, items) = (~[], ~[]);
let mut view_items = ~[];
let mut items = ~[];
let mut done = false;
// I think this code would probably read better as a single
// loop with a mutable three-state-variable (for extern mods,