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Remove support for multiple traits in a single impl

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There was half-working support for them, but they were never fully
implemented or even approved. Remove them altogether.

Closes #3410
This commit is contained in:
Tim Chevalier
2012-09-07 15:11:26 -07:00
parent 62ab9d70f4
commit f5093dff7b
9 changed files with 44 additions and 35 deletions
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13
src/libsyntax/print/pprust.rs
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@@ -499,7 +499,7 @@ fn print_item(s: ps, &&item: @ast::item) {
print_struct(s, struct_def, tps, item.ident, item.span);
}
ast::item_impl(tps, traits, ty, methods) => {
ast::item_impl(tps, opt_trait, ty, methods) => {
head(s, ~"impl");
if tps.is_not_empty() {
print_type_params(s, tps);
@@ -507,12 +507,13 @@ fn print_item(s: ps, &&item: @ast::item) {
}
print_type(s, ty);
if vec::len(traits) != 0u {
word_space(s, ~":");
do commasep(s, inconsistent, traits) |s, p| {
print_path(s, p.path, false);
match opt_trait {
Some(t) => {
word_space(s, ~":");
print_path(s, t.path, false);
}
}
None => ()
};
space(s.s);
bopen(s);