Function fib

test/matchit/legacy.cpp:153–160

}

int32_t fib(int32_t n)
{
  EXPECT_TRUE(n > 0);
  return match(n)(
      pattern | 1 = expr(1), pattern | 2 = expr(1),
      pattern | _ = [n]
      { return fib(n - 1) + fib(n - 2); });
}

TEST(Match, test6)
{