Replace use of scanner.peek with scanner.check to fix rbx parse bug

StringScanner.peek() doesnt seem to work quite the same as other implementations when scanning over utf8 characters in strings. For each character, the index seems to skip 1 position. #check and #scan still work, but #peek uses a different implementation which seems to be the problem.
opal · Dec 13, 2013 · 5f7ec71 · 5f7ec71
1 parent b0573f9
commit 5f7ec71
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/lib/opal/parser/lexer.rb b/lib/opal/parser/lexer.rb
@@ -490,7 +490,7 @@ def heredoc_identifier
     def process_identifier(matched, cmd_start)
       last_state = @lex_state
 
-      if scanner.peek(2) != '::' && scan(/:/)
+      if !check(/::/) and scan(/:/)
         @lex_state = :expr_beg
         self.yylval = matched
         return :tLABEL