[Prism] Implement defined? for PM_UNLESS_NODE

Ruby code:

```ruby
defined?(unless true; 1; end)
```

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
This commit is contained in:
eileencodes 2024-01-17 11:40:01 -05:00 коммит произвёл Kevin Newton
Родитель 555af5e599
Коммит db9f5fc916
2 изменённых файлов: 2 добавлений и 0 удалений

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@ -2571,6 +2571,7 @@ pm_compile_defined_expr0(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *co
case PM_SOURCE_LINE_NODE:
case PM_STRING_NODE:
case PM_SYMBOL_NODE:
case PM_UNLESS_NODE:
case PM_UNTIL_NODE:
case PM_WHILE_NODE:
case PM_X_STRING_NODE:

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@ -262,6 +262,7 @@ module Prism
assert_prism_eval("defined?(class << self; end)")
assert_prism_eval("defined?(while a != 1; end)")
assert_prism_eval("defined?(until a == 1; end)")
assert_prism_eval("defined?(unless true; 1; end)")
end
def test_GlobalVariableReadNode