From d2000e0e6c3b7538e7bec51af8d5a128e8acf7ab Mon Sep 17 00:00:00 2001
From: eileencodes <eileencodes@gmail.com>
Date: Wed, 17 Jan 2024 11:00:08 -0500
Subject: [PATCH] [Prism] Implement defined? for PM_RATIONAL_NODE

Ruby code:

```ruby
defined?(1.2r)
```

Instructions:

```
"********* Ruby *************"
== disasm: #<ISeq:<compiled>@<compiled>:1 (1,0)-(59,16)>
0000 putobject                              "expression"              (  59)[Li]
0002 leave
"********* PRISM *************"
== disasm: #<ISeq:<compiled>@<compiled>:58 (58,0)-(58,16)>
0000 putobject                              "expression"              (  58)[Li]
0002 leave
```

Related: ruby/prism#2188
---
 prism_compile.c                 | 1 +
 test/ruby/test_compile_prism.rb | 1 +
 2 files changed, 2 insertions(+)

diff --git a/prism_compile.c b/prism_compile.c
index da093e1861..4d1d0d851f 100644
--- a/prism_compile.c
+++ b/prism_compile.c
@@ -2560,6 +2560,7 @@ pm_compile_defined_expr0(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *co
       case PM_NEXT_NODE:
       case PM_OR_NODE:
       case PM_RANGE_NODE:
+      case PM_RATIONAL_NODE:
       case PM_REDO_NODE:
       case PM_REGULAR_EXPRESSION_NODE:
       case PM_RETRY_NODE:
diff --git a/test/ruby/test_compile_prism.rb b/test/ruby/test_compile_prism.rb
index a635683fc3..63e1a31199 100644
--- a/test/ruby/test_compile_prism.rb
+++ b/test/ruby/test_compile_prism.rb
@@ -258,6 +258,7 @@ module Prism
       assert_prism_eval("defined?(/(?<foo>bar)/ =~ 'barbar')")
       assert_prism_eval("defined?(1 => 1)")
       assert_prism_eval("defined?(module M; end)")
+      assert_prism_eval("defined?(1.2r)")
     end
 
     def test_GlobalVariableReadNode