syntax: clarify that trailing separators are never required

1 files changed, 7 insertions, 9 deletions

diff --git a/src/libsyntax/parse/common.rs b/src/libsyntax/parse/common.rs
index 0c2718c3b4b..0520993de74 100644
--- a/src/libsyntax/parse/common.rs
+++ b/src/libsyntax/parse/common.rs
@@ -4,25 +4,23 @@ import parser::parser;
 
 type seq_sep = {
     sep: option<token::token>,
-    trailing_opt: bool   // is trailing separator optional?
+    trailing_sep_allowed: bool
 };
 
-fn seq_sep(t: token::token) -> seq_sep {
-    ret {sep: option::some(t), trailing_opt: false};
+fn seq_sep_trailing_disallowed(t: token::token) -> seq_sep {
+    ret {sep: option::some(t), trailing_sep_allowed: false};
 }
-fn seq_sep_opt(t: token::token) -> seq_sep {
-    ret {sep: option::some(t), trailing_opt: true};
+fn seq_sep_trailing_allowed(t: token::token) -> seq_sep {
+    ret {sep: option::some(t), trailing_sep_allowed: true};
 }
 fn seq_sep_none() -> seq_sep {
-    ret {sep: option::none, trailing_opt: false};
+    ret {sep: option::none, trailing_sep_allowed: false};
 }
 
-
 fn token_to_str(reader: reader, ++token: token::token) -> str {
     token::to_str(*reader.interner, token)
 }
 
-
 // This should be done with traits, once traits work
 impl parser_common for parser {
 
@@ -203,7 +201,7 @@ impl parser_common for parser {
                         else { self.expect(t); } }
               _ { }
             }
-            if sep.trailing_opt && self.token == ket { break; }
+            if sep.trailing_sep_allowed && self.token == ket { break; }
             v += [f(self)];
         }
         ret v;