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-rw-r--r--ext/fiddle/lib/fiddle/function.rb5
-rw-r--r--test/fiddle/test_function.rb13
2 files changed, 18 insertions, 0 deletions
diff --git a/ext/fiddle/lib/fiddle/function.rb b/ext/fiddle/lib/fiddle/function.rb
index 0f9913adeb..f9910a0524 100644
--- a/ext/fiddle/lib/fiddle/function.rb
+++ b/ext/fiddle/lib/fiddle/function.rb
@@ -19,5 +19,10 @@ module Fiddle
def to_i
ptr.to_i
end
+
+ # Turn this function in to a proc
+ def to_proc
+ lambda { |*args| self.call(*args) }
+ end
end
end
diff --git a/test/fiddle/test_function.rb b/test/fiddle/test_function.rb
index 742615a56b..5dc456b82b 100644
--- a/test/fiddle/test_function.rb
+++ b/test/fiddle/test_function.rb
@@ -102,6 +102,19 @@ module Fiddle
assert_equal("123", str.to_s)
end
+ def call_proc(string_to_copy)
+ buff = +"000"
+ str = yield(buff, string_to_copy)
+ [buff, str]
+ end
+
+ def test_function_as_proc
+ f = Function.new(@libc['strcpy'], [TYPE_VOIDP, TYPE_VOIDP], TYPE_VOIDP)
+ buff, str = call_proc("123", &f)
+ assert_equal("123", buff)
+ assert_equal("123", str.to_s)
+ end
+
def test_nogvl_poll
# XXX hack to quiet down CI errors on EINTR from r64353
# [ruby-core:88360] [Misc #14937]