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[Prism] Implement defined? for PM_CASE_NODE

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Ruby code:

```ruby
defined?(case :a; when :a; 1; else; 2; 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 10:37:14 -05:00 committed by Kevin Newton
parent a25c6fd9a0
commit 75bed8c61a
2 changed files with 3 additions and 0 deletions
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1
prism_compile.c
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@ -2536,6 +2536,7 @@ pm_compile_defined_expr0(rb_iseq_t *iseq, const pm_node_t *node, LINK_ANCHOR *co
case PM_AND_NODE:
case PM_BEGIN_NODE:
case PM_BREAK_NODE:
case PM_CASE_NODE:
case PM_DEFINED_NODE:
case PM_FLOAT_NODE:
case PM_HASH_NODE:

2
test/ruby/test_compile_prism.rb
View File

@ -248,6 +248,8 @@ module Prism
assert_prism_eval("defined?([0][0] &&= 1)")
assert_prism_eval("defined?([0][0] += 1)")
assert_prism_eval("defined?([0][0] ||= 1)")
assert_prism_eval("defined?(case :a; when :a; 1; else; 2; end)")
end
def test_GlobalVariableReadNode