Introduce pattern matching [EXPERIMENTAL]

[ruby-core:87945] [Feature #14912]

git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@67586 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 20 insertions, 0 deletions

diff --git a/ast.c b/ast.c
index 18562f252c..9b57a09198 100644
--- a/ast.c
+++ b/ast.c
@@ -364,8 +364,12 @@ node_children(rb_ast_t *ast, NODE *node)
         return rb_ary_new_from_node_args(ast, 2, node->nd_head, node->nd_body);
       case NODE_CASE2:
         return rb_ary_new_from_node_args(ast, 2, node->nd_head, node->nd_body);
+      case NODE_CASE3:
+        return rb_ary_new_from_node_args(ast, 2, node->nd_head, node->nd_body);
       case NODE_WHEN:
         return rb_ary_new_from_node_args(ast, 3, node->nd_head, node->nd_body, node->nd_next);
+      case NODE_IN:
+        return rb_ary_new_from_node_args(ast, 3, node->nd_head, node->nd_body, node->nd_next);
       case NODE_WHILE:
         goto loop;
       case NODE_UNTIL:
@@ -622,6 +626,22 @@ node_children(rb_ast_t *ast, NODE *node)
             }
             return rb_ary_new_from_args(3, locals, NEW_CHILD(ast, node->nd_args), NEW_CHILD(ast, node->nd_body));
         }
+      case NODE_ARYPTN:
+        {
+            struct rb_ary_pattern_info *apinfo = node->nd_apinfo;
+            return rb_ary_new_from_args(4,
+                                        NEW_CHILD(ast, node->nd_pconst),
+                                        NEW_CHILD(ast, apinfo->pre_args),
+                                        NEW_CHILD(ast, apinfo->rest_arg),
+                                        NEW_CHILD(ast, apinfo->post_args));
+        }
+      case NODE_HSHPTN:
+        {
+            return rb_ary_new_from_args(3,
+                                        NEW_CHILD(ast, node->nd_pconst),
+                                        NEW_CHILD(ast, node->nd_pkwargs),
+                                        NEW_CHILD(ast, node->nd_pkwrestarg));
+        }
       case NODE_ARGS_AUX:
       case NODE_LAST:
         break;