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[Prism] Implement defined? for PM_FOR_NODE

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Ruby code:

```ruby
defined?(for i in [1,2] do; i; end)
```

Instructions:

```
"********* Ruby *************"
== disasm: #<ISeq:<compiled>@<compiled>:1 (1,0)-(59,43)>
0000 putobject                              "expression"              (  59)[Li]
0002 leave
"********* PRISM *************"
== disasm: #<ISeq:<compiled>@<compiled>:58 (58,0)-(58,43)>
0000 putobject                              "expression"              (  58)[Li]
0002 leave
```

Related: ruby/prism#2188
This commit is contained in:
eileencodes 2024-01-17 10:44:01 -05:00 • committed by Kevin Newton
parent 7460820fec
commit fb1eed3f70
2 changed files with 2 additions and 0 deletions
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1
test/ruby/test_compile_prism.rb
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@ -253,6 +253,7 @@ module Prism
assert_prism_eval("defined?(case [1, 2, 3]; in [1, 2, 3]; 4; end)")
assert_prism_eval("defined?(class PrismClassA; end)")
assert_prism_eval("defined?(def prism_test_def_node; end)")
assert_prism_eval("defined?(for i in [1,2] do; i; end)")
end
def test_GlobalVariableReadNode