diff options
Diffstat (limited to 'defs')
| -rw-r--r-- | defs/id.def | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/defs/id.def b/defs/id.def index a9b189f5aa..48c6334227 100644 --- a/defs/id.def +++ b/defs/id.def @@ -33,6 +33,12 @@ firstline, predefined = __LINE__+1, %[\ core#hash_merge_kwd ] +class KeywordError < RuntimeError + def self.raise(mesg, line) + super(self, mesg, ["#{__FILE__}:#{line}", *caller]) + end +end + predefined_ids = {} preserved_ids = [] local_ids = [] @@ -53,6 +59,13 @@ predefined.lines.each_with_index do |line, num| token.sub!(/\A@/, "_I_") token.gsub!(/\W+/, "") end + if prev = names[name] + KeywordError.raise("#{name} is already registered at line #{prev+firstline}", firstline+num) + end + if prev = predefined_ids[token] + KeywordError.raise("#{token} is already used for #{prev} at line #{names[prev]+firstline}", firstline+num) + end + names[name] = num case name when /\A[A-Z]\w*\z/; const_ids when /\A(?!\d)\w+\z/; local_ids |