[ruby-core:111232] [Ruby master Bug#19167] Object#inspect does not correctly show NilClass TrueClass and FalseClass stored in instance variables

["eightbitraptor (Matthew Valentine-House)" <noreply@ruby-lang.org>]

Issue #19167 has been updated by eightbitraptor (Matthew Valentine-House).


It looks like this behaviour was codified in a spec since the commit that @alanwu mentioned was committed.

[This commit (a28aa80c739a1d169649a4da833ef48cfb3465b3)](https://github.com/ruby/ruby/commit/a28aa80c739a1d169649a4da833ef48cfb3465b3) introduces the following specs

```
+    it "formats a TrueClass VALUE as `TrueClass` if sign not specified in format" do
+      s = 'Result: TrueClass.'
+      @s.rb_sprintf3(true.class).should == s
+    end
+
+    it "formats a TrueClass VALUE as 'true' if sign specified in format" do
+      s = 'Result: true.'
+      @s.rb_sprintf4(true.class).should == s
+    end
   end
```

This would indicate that the behaviour of "+PRIsVALUE" in `rb_sprintf` is working as intended, and that we shouldn't remove the special casing from `ruby__sfvextra`.

----------------------------------------
Bug #19167: Object#inspect does not correctly show NilClass TrueClass and FalseClass stored in instance variables
https://bugs.ruby-lang.org/issues/19167#change-100521

* Author: tompng (tomoya ishida)
* Status: Open
* Priority: Normal
* ruby -v: ruby 3.1.0p0 (2021-12-25 revision fb4df44d16) [x86_64-darwin20]
* Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN
----------------------------------------

~~~ruby
Object.new.instance_eval do
  @a = nil
  @b = NilClass
  @c = true
  @d = TrueClass
  @e = [nil, NilClass, true, TrueClass]
  puts self.inspect
end
# actual
# => #<Object:0x2f15e3c8 @a=nil, @b=nil, @c=true, @d=true, @e=[nil, NilClass, true, TrueClass]>
# expected
# => #<Object:0x2f15e3c8 @a=nil, @b=NilClass, @c=true, @d=TrueClass, @e=[nil, NilClass, true, TrueClass]>
~~~

---Files--------------------------------
0001-Fix-Object-inspect-with-NilClass-as-an-ivar.patch (751 Bytes)


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