node.h: introduce nd_brace to determine if a hash literal is a keyword

NODE_HASH#nd_brace is a flag that is 1 for `foo({ k: 1 })` and 0 for
`foo(k: 1)`.
nd_alen had been abused for the flag (and the implementation is
completely the same), but an explicit name is better to read.

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67266 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 2 insertions, 0 deletions

diff --git a/node.h b/node.h
index 4b16e23b3d..5b917daae4 100644
--- a/node.h
+++ b/node.h
@@ -266,6 +266,8 @@ typedef struct RNode {
 #define nd_orig   u2.id
 #define nd_undef  u2.node
 
+#define nd_brace u2.argc
+
 #define NEW_NODE(t,a0,a1,a2,loc) rb_node_newnode((t),(VALUE)(a0),(VALUE)(a1),(VALUE)(a2),loc)
 
 #define NEW_DEFN(i,a,d,loc) NEW_NODE(NODE_DEFN,0,i,NEW_SCOPE(a,d,loc),loc)