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, 3 insertions, 3 deletions

diff --git a/node.c b/node.c
index b560d24a29..9196280d56 100644
--- a/node.c
+++ b/node.c
@@ -557,7 +557,7 @@ dump_node(VALUE buf, VALUE indent, int comment, const NODE * node)
 	return;
 
       case NODE_HASH:
-	if (!node->nd_alen) {
+	if (!node->nd_brace) {
 	    ANN("keyword arguments");
 	    ANN("format: nd_head");
 	    ANN("example: a: 1, b: 2");
@@ -567,8 +567,8 @@ dump_node(VALUE buf, VALUE indent, int comment, const NODE * node)
 	    ANN("format: { [nd_head] }");
 	    ANN("example: { 1 => 2, 3 => 4 }");
 	}
-	F_CUSTOM1(nd_alen, "keyword arguments or hash literal") {
-	    switch (node->nd_alen) {
+	F_CUSTOM1(nd_brace, "keyword arguments or hash literal") {
+	    switch (node->nd_brace) {
 	      case 0: A("0 (keyword argument)"); break;
 	      case 1: A("1 (hash literal)"); break;
 	    }