Bool: Add to_unsafe (#5465)

`Bool.to_unsafe` returns `1` for `true` and `0` for false.
crystal-lang · Jan 2, 2018 · 56b8edd · 56b8edd
1 parent 68a7ce8
commit 56b8edd
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diff --git a/spec/std/bool_spec.cr b/spec/std/bool_spec.cr
@@ -31,6 +31,11 @@ describe "Bool" do
     it { true.hash.should_not eq(false.hash) }
   end
 
+  describe "to_unsafe" do
+    it { true.to_unsafe.should eq(1) }
+    it { false.to_unsafe.should eq(0) }
+  end
+
   describe "to_s" do
     it { true.to_s.should eq("true") }
     it { false.to_s.should eq("false") }

diff --git a/src/bool.cr b/src/bool.cr
@@ -46,6 +46,11 @@ struct Bool
     hasher.bool(self)
   end
 
+  # Returns `1` for `true` and `0` for `false`.
+  def to_unsafe
+    self ? 1 : 0
+  end
+
   # Returns `"true"` for `true` and `"false"` for `false`.
   def to_s
     self ? "true" : "false"