From a0c7bb4328c981be5f3f0e82e7ef75fc8bbd51b6 Mon Sep 17 00:00:00 2001
From: Jemma Issroff <jemmaissroff@gmail.com>
Date: Thu, 7 Dec 2023 14:13:33 -0500
Subject: [PATCH] [PRISM] Account for multiple arguments when compiling
 ArgumentsNode

BreakNode, ReturnNode and NextNode all compile the ArgumentsNode
directly, but we weren't accounting for multiple arguments. If there
is more than one argument, we need to also emit a newarray
instruction to put the arguments onto the stack
---
 prism_compile.c                 |  7 +++++--
 test/ruby/test_compile_prism.rb | 25 ++++++++++++++++++++++++-
 2 files changed, 29 insertions(+), 3 deletions(-)

diff --git a/prism_compile.c b/prism_compile.c
index 1eeecc5c2a..71fd05dddf 100644
--- a/prism_compile.c
+++ b/prism_compile.c
@@ -1762,6 +1762,9 @@ pm_compile_node(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *const ret,
         for (size_t index = 0; index < node_list.size; index++) {
             PM_COMPILE(node_list.nodes[index]);
         }
+        if (node_list.size > 1) {
+            ADD_INSN1(ret, &dummy_line_node, newarray, INT2FIX(node_list.size));
+        }
         return;
       }
       case PM_ARRAY_NODE: {
@@ -3578,7 +3581,7 @@ pm_compile_node(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *const ret,
             ADD_ADJUST(ret, &dummy_line_node, ISEQ_COMPILE_DATA(iseq)->start_label);
 
             if (next_node->arguments) {
-                PM_COMPILE((pm_node_t *)next_node->arguments);
+                PM_COMPILE_NOT_POPPED((pm_node_t *)next_node->arguments);
             }
             else {
                 PM_PUTNIL;
@@ -3618,7 +3621,7 @@ pm_compile_node(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *const ret,
             }
             if (ip != 0) {
                 if (next_node->arguments) {
-                    PM_COMPILE((pm_node_t *)next_node->arguments);
+                    PM_COMPILE_NOT_POPPED((pm_node_t *)next_node->arguments);
                 }
                 else {
                     PM_PUTNIL;
diff --git a/test/ruby/test_compile_prism.rb b/test/ruby/test_compile_prism.rb
index 1bc08d2db6..50bb61c99d 100644
--- a/test/ruby/test_compile_prism.rb
+++ b/test/ruby/test_compile_prism.rb
@@ -742,6 +742,8 @@ module Prism
     def test_BreakNode
       assert_prism_eval("while true; break; end")
       assert_prism_eval("while true; break 1; end")
+      assert_prism_eval("while true; break 1, 2; end")
+
       assert_prism_eval("[].each { break }")
     end
 
@@ -832,6 +834,13 @@ module Prism
         res
       CODE
 
+      assert_prism_eval(<<-CODE)
+        (1..5).map do |i|
+          next i, :even if i.even?
+          i
+        end
+      CODE
+
       assert_prism_eval(<<-CODE)
         res = []
         i = 0
@@ -1001,7 +1010,20 @@ module Prism
     end
 
     def test_ReturnNode
-      assert_prism_eval("def return_node; return 1; end")
+      assert_prism_eval(<<-CODE)
+        def self.prism_test_return_node
+          return 1
+        end
+        prism_test_return_node
+      CODE
+
+      assert_prism_eval(<<-CODE)
+        def self.prism_test_return_node
+          return 1, 2
+        end
+        prism_test_return_node
+      CODE
+
       assert_prism_eval(<<-CODE)
         def self.prism_test_return_node
           [1].each do |e|
@@ -1010,6 +1032,7 @@ module Prism
         end
         prism_test_return_node
       CODE
+
       assert_prism_eval(<<-CODE)
         def self.prism_test_return_node
           [1].map do |i|