From 0b07d2a1e32a456fc302c8d970fa85782bdb98ce Mon Sep 17 00:00:00 2001
From: Jeremy Evans <code@jeremyevans.net>
Date: Fri, 30 May 2025 18:25:58 -0700
Subject: Deprecate passing arguments to Set#to_set and Enumerable#to_set

Array#to_a, Hash#to_h, Enumerable#to_a, and Enumerable#to_h do not
allow you to specify subclasses.  This has undesired behavior when
passing non-Set subclasses.  All of these are currently allowed, and
none make sense:

```ruby
enum = [1,2,3].to_enum

enum.to_set(Hash)
enum.to_set(Struct.new("A", :a))
enum.to_set(ArgumentError)
enum.to_set(Thread){}
```

Users who want to create instances of a subclass of Set from an
enumerable should pass the enumerable to SetSubclass.new instead of
using to_set.
---
 common.mk | 2 ++
 1 file changed, 2 insertions(+)

(limited to 'common.mk')

diff --git a/common.mk b/common.mk
index ad5ebac281..748e622beb 100644
--- a/common.mk
+++ b/common.mk
@@ -16792,6 +16792,7 @@ set.$(OBJEXT): $(top_srcdir)/internal/array.h
 set.$(OBJEXT): $(top_srcdir)/internal/basic_operators.h
 set.$(OBJEXT): $(top_srcdir)/internal/bits.h
 set.$(OBJEXT): $(top_srcdir)/internal/compilers.h
+set.$(OBJEXT): $(top_srcdir)/internal/error.h
 set.$(OBJEXT): $(top_srcdir)/internal/gc.h
 set.$(OBJEXT): $(top_srcdir)/internal/hash.h
 set.$(OBJEXT): $(top_srcdir)/internal/imemo.h
@@ -16801,6 +16802,7 @@ set.$(OBJEXT): $(top_srcdir)/internal/sanitizers.h
 set.$(OBJEXT): $(top_srcdir)/internal/serial.h
 set.$(OBJEXT): $(top_srcdir)/internal/set_table.h
 set.$(OBJEXT): $(top_srcdir)/internal/static_assert.h
+set.$(OBJEXT): $(top_srcdir)/internal/string.h
 set.$(OBJEXT): $(top_srcdir)/internal/symbol.h
 set.$(OBJEXT): $(top_srcdir)/internal/variable.h
 set.$(OBJEXT): $(top_srcdir)/internal/vm.h
-- 
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