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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 19:33:14 +0000
commit36d22d82aa202bb199967e9512281e9a53db42c9 (patch)
tree105e8c98ddea1c1e4784a60a5a6410fa416be2de /js/src/jit-test/tests/arrow-functions/church-2.js
parentInitial commit. (diff)
downloadfirefox-esr-upstream.tar.xz
firefox-esr-upstream.zip
Adding upstream version 115.7.0esr.upstream/115.7.0esrupstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'js/src/jit-test/tests/arrow-functions/church-2.js')
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1 files changed, 19 insertions, 0 deletions
diff --git a/js/src/jit-test/tests/arrow-functions/church-2.js b/js/src/jit-test/tests/arrow-functions/church-2.js
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+++ b/js/src/jit-test/tests/arrow-functions/church-2.js
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+// Church-Peano integers
+
+var Zero = f => x => x;
+var Succ = n => f => x => n(f)(f(x));
+var Add = a => b => f => x => a(f)(b(f)(x));
+var Mul = a => b => f => x => a(b(f))(x);
+var Exp = a => b => b(a);
+
+var n = f => f(k => k + 1)(0);
+
+assertEq(n(Zero), 0);
+assertEq(n(Succ(Zero)), 1);
+assertEq(n(Succ(Succ(Zero))), 2);
+
+var Three = Succ(Succ(Succ(Zero)));
+var Five = Succ(Succ(Three));
+assertEq(n(Add(Three)(Five)), 8);
+assertEq(n(Mul(Three)(Five)), 15);
+assertEq(n(Exp(Three)(Five)), 243);