From 58e97c4e6d553edc4211f8da50b0529cc8f279d7 Mon Sep 17 00:00:00 2001
From: nobu <nobu@b2dd03c8-39d4-4d8f-98ff-823fe69b080e>
Date: Sat, 11 Feb 2017 02:14:06 +0000
Subject: parse.y: TOKEN2ID

* parse.y (TOKEN2ID): add macro which maps static tokens to IDs.

* template/id.h.tmpl (TOKEN2*ID, DEFINE_*ID_FROM_TOKEN): separate
  into macros, token to ID mapping and enum definitions.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@57598 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
---
 template/id.h.tmpl | 26 +++++++++++++++++++-------
 1 file changed, 19 insertions(+), 7 deletions(-)

(limited to 'template/id.h.tmpl')

diff --git a/template/id.h.tmpl b/template/id.h.tmpl
index ab5c98b6c4..687cbbbe40 100644
--- a/template/id.h.tmpl
+++ b/template/id.h.tmpl
@@ -57,6 +57,11 @@ enum ruby_id_types {
 % end
 #define RUBY_TOKEN(t) RUBY_TOKEN_##t
 
+#define RUBY_TOKEN2ID_TYPE(tok, type) ((tok<<RUBY_ID_SCOPE_SHIFT)|type|RUBY_ID_STATIC_SYM)
+% types.each do |type|
+#define TOKEN2<%=type%>ID(tok) RUBY_TOKEN2ID_TYPE(tok, RUBY_ID_<%=type%>)
+% end
+
 enum ruby_method_ids {
 % ids[:token_op].uniq {|_, op| op}.each do |id, op, token|
     id<%=id%> = <%=token ? "RUBY_TOKEN(#{token})" : "'#{op}'"%>,
@@ -66,16 +71,23 @@ enum ruby_method_ids {
     id<%=token%>,
 % end
     tPRESERVED_ID_END,
-% ids.values_at(*types).flatten.each do |token|
+% prev = 'tPRESERVED_ID_END'
+% types.each do |type|
+%   tokens = ids[type]
+    tTOKEN_<%=type%>_BEGIN = <%=prev%>-1,
+%   tokens.each do |token|
     t<%=token%>,
+%   end
+%   prev = "tTOKEN_#{type}_END"
+    <%=prev%>,
 % end
-    tNEXT_ID,
+    tNEXT_ID = <%=prev%>,
 % types.each do |type|
-%   types = ids[type] or next
-%   types.empty? and next
-#define TOKEN2<%=type%>ID(n) id##n = ((t##n<<ID_SCOPE_SHIFT)|ID_<%=type%>|ID_STATIC_SYM)
-%   types.each do |token|
-    TOKEN2<%=type%>ID(<%=token%>),
+%   tokens = ids[type]
+#define DEFINE_<%=type%>ID_FROM_TOKEN(n) id##n = TOKEN2<%=type%>ID(t##n)
+%   tokens or next
+%   tokens.each do |token|
+    DEFINE_<%=type%>ID_FROM_TOKEN(<%=token%>),
 %   end
 % end
     tLAST_OP_ID = tPRESERVED_ID_END-1,
-- 
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