Merge pull request #222 from Shopify/emily/next

Implement translation for `next` node

parser/prism/Translator.cc

@@ -358,6 +358,14 @@ std::unique_ptr<parser::Node> Translator::translate(pm_node_t *node) {
             return make_unique<parser::Module>(parser.translateLocation(loc), parser.translateLocation(declLoc),
                                                std::move(name), std::move(body));
         }
+        case PM_NEXT_NODE: {
+            auto nextNode = reinterpret_cast<pm_next_node *>(node);
+            pm_location_t *loc = &nextNode->base.location;
+
+            auto arguments = translateArguments(nextNode->arguments);
+
+            return make_unique<parser::Next>(parser.translateLocation(loc), std::move(arguments));
+        }
         case PM_NIL_NODE: {
             auto nilNode = reinterpret_cast<pm_nil_node *>(node);
             pm_location_t *loc = &nilNode->base.location;
@@ -757,7 +765,6 @@ std::unique_ptr<parser::Node> Translator::translate(pm_node_t *node) {
         case PM_MISSING_NODE:
         case PM_MULTI_TARGET_NODE:
         case PM_MULTI_WRITE_NODE:
-        case PM_NEXT_NODE:
         case PM_NO_KEYWORDS_PARAMETER_NODE:
         case PM_NUMBERED_PARAMETERS_NODE:
         case PM_NUMBERED_REFERENCE_READ_NODE:

test/prism_regression/next.parse-tree.exp

@@ -0,0 +1,23 @@
+Begin {
+  stmts = [
+    While {
+      cond = True {
+      }
+      body = Next {
+        exprs = [
+        ]
+      }
+    }
+    While {
+      cond = True {
+      }
+      body = Next {
+        exprs = [
+          Integer {
+            val = "1"
+          }
+        ]
+      }
+    }
+  ]
+}

test/prism_regression/next.rb

@@ -0,0 +1,12 @@
+
+# typed: false
+
+# without arguments
+while true
+  next
+end
+
+# with arguments
+while true
+  next 1
+end