Merge commit '514cb71a6a3e116c229c5dc874369f8632530dc7' as 'deps/inja'

17 files changed, 3641 insertions, 0 deletions

diff --git a/deps/inja/third_party/include/hayai/LICENSE.md b/deps/inja/third_party/include/hayai/LICENSE.md
new file mode 100755
index 0000000..1ace0da
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/LICENSE.md
@@ -0,0 +1,21 @@
+Copyright (c) 2011 - Nick Bruun.
+
+This software is provided 'as-is', without any express or implied
+warranty. In no event will the authors be held liable for any damages
+arising from the use of this software.
+
+Permission is granted to anyone to use this software for any purpose,
+including commercial applications, and to alter it and redistribute it
+freely, subject to the following restrictions:
+
+1.  The origin of this software must not be misrepresented; you must not
+    claim that you wrote the original software. If you use this software
+    in a product, an acknowledgment in the product documentation would be
+    appreciated but is not required.
+2.  Altered source versions must be plainly marked as such, and must not be
+    misrepresented as being the original software.
+3.  If you meet (any of) the author(s), you're encouraged to buy them a beer,
+    a drink or whatever is suited to the situation, given that you like the
+    software.
+4.  This notice may not be removed or altered from any source
+    distribution.
diff --git a/deps/inja/third_party/include/hayai/hayai.hpp b/deps/inja/third_party/include/hayai/hayai.hpp
new file mode 100755
index 0000000..0396751
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai.hpp
@@ -0,0 +1,136 @@
+#ifndef __HAYAI
+#define __HAYAI
+
+#include "hayai_benchmarker.hpp"
+#include "hayai_test.hpp"
+#include "hayai_default_test_factory.hpp"
+#include "hayai_fixture.hpp"
+#include "hayai_console_outputter.hpp"
+#include "hayai_json_outputter.hpp"
+#include "hayai_junit_xml_outputter.hpp"
+
+
+#define HAYAI_VERSION "1.0.1"
+
+
+#define BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name) \
+    fixture_name ## _ ## benchmark_name ## _Benchmark
+
+#define BENCHMARK_(fixture_name,                                        \
+                   benchmark_name,                                      \
+                   fixture_class_name,                                  \
+                   runs,                                                \
+                   iterations)                                          \
+    class BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name)           \
+        :   public fixture_class_name                                   \
+    {                                                                   \
+    public:                                                             \
+        BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name)()           \
+        {                                                               \
+                                                                        \
+        }                                                               \
+    protected:                                                          \
+        virtual void TestBody();                                        \
+    private:                                                            \
+        static const ::hayai::TestDescriptor* _descriptor;              \
+    };                                                                  \
+                                                                        \
+    const ::hayai::TestDescriptor*                                      \
+    BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name)::_descriptor =  \
+        ::hayai::Benchmarker::Instance().RegisterTest(                  \
+            #fixture_name,                                              \
+            #benchmark_name,                                            \
+            runs,                                                       \
+            iterations,                                                 \
+            new ::hayai::TestFactoryDefault<                            \
+                BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name)     \
+            >(),                                                        \
+            ::hayai::TestParametersDescriptor());                       \
+                                                                        \
+    void BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name)::TestBody()
+
+#define BENCHMARK_F(fixture_name,                        \
+                    benchmark_name,                      \
+                    runs,                                \
+                    iterations)                          \
+    BENCHMARK_(fixture_name,                             \
+               benchmark_name,                           \
+               fixture_name,                             \
+               runs,                                     \
+               iterations)
+
+#define BENCHMARK(fixture_name,                          \
+                  benchmark_name,                        \
+                  runs,                                  \
+                  iterations)                            \
+    BENCHMARK_(fixture_name,                             \
+               benchmark_name,                           \
+               ::hayai::Test,                            \
+               runs,                                     \
+               iterations)
+
+// Parametrized benchmarks.
+#define BENCHMARK_P_(fixture_name,                                      \
+                     benchmark_name,                                    \
+                     fixture_class_name,                                \
+                     runs,                                              \
+                     iterations,                                        \
+                     arguments)                                         \
+    class BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name)           \
+        :   public fixture_class_name {                                 \
+    public:                                                             \
+        BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name) () {}       \
+        virtual ~ BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name) () {} \
+        static const std::size_t _runs = runs;                          \
+        static const std::size_t _iterations = iterations;              \
+        static const char* _argumentsDeclaration() { return #arguments;  } \
+    protected:                                                          \
+        inline void TestPayload arguments;                              \
+    };                                                                  \
+    void BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name)::TestPayload arguments
+
+#define BENCHMARK_P(fixture_name,               \
+                    benchmark_name,             \
+                    runs,                       \
+                    iterations,                 \
+                    arguments)                  \
+    BENCHMARK_P_(fixture_name,                  \
+                 benchmark_name,                \
+                 hayai::Fixture,                \
+                 runs,                          \
+                 iterations,                    \
+                 arguments)
+
+#define BENCHMARK_P_F(fixture_name, benchmark_name, runs, iterations, arguments) \
+        BENCHMARK_P_(fixture_name, benchmark_name, fixture_name, runs, iterations, arguments)
+
+#define BENCHMARK_P_CLASS_NAME_(fixture_name, benchmark_name, id)   \
+        fixture_name ## _ ## benchmark_name ## _Benchmark_ ## id
+
+#define BENCHMARK_P_INSTANCE1(fixture_name, benchmark_name, arguments, id) \
+    class BENCHMARK_P_CLASS_NAME_(fixture_name, benchmark_name, id):    \
+        public BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name) {    \
+    protected:                                                          \
+        virtual void TestBody() { this->TestPayload arguments; }        \
+    private:                                                            \
+        static const ::hayai::TestDescriptor* _descriptor;              \
+    };                                                                  \
+    const ::hayai::TestDescriptor* BENCHMARK_P_CLASS_NAME_(fixture_name, benchmark_name, id)::_descriptor = \
+        ::hayai::Benchmarker::Instance().RegisterTest(                  \
+            #fixture_name, #benchmark_name,                             \
+            BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name)::_runs, \
+            BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name)::_iterations, \
+            new ::hayai::TestFactoryDefault< BENCHMARK_P_CLASS_NAME_(fixture_name, benchmark_name, id) >(), \
+            ::hayai::TestParametersDescriptor(BENCHMARK_CLASS_NAME_(fixture_name, benchmark_name)::_argumentsDeclaration(), #arguments))
+
+#if defined(__COUNTER__)
+#   define BENCHMARK_P_ID_ __COUNTER__
+#else
+#   define BENCHMARK_P_ID_ __LINE__
+#endif
+
+#define BENCHMARK_P_INSTANCE(fixture_name, benchmark_name, arguments)   \
+    BENCHMARK_P_INSTANCE1(fixture_name, benchmark_name, arguments, BENCHMARK_P_ID_)
+
+
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_benchmarker.hpp b/deps/inja/third_party/include/hayai/hayai_benchmarker.hpp
new file mode 100755
index 0000000..33f005c
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_benchmarker.hpp
@@ -0,0 +1,552 @@
+#ifndef __HAYAI_BENCHMARKER
+#define __HAYAI_BENCHMARKER
+#include <algorithm>
+#include <vector>
+#include <limits>
+#include <iomanip>
+#if __cplusplus > 201100L
+#include <random>
+#endif
+#include <string>
+#include <cstring>
+
+#include "hayai_test_factory.hpp"
+#include "hayai_test_descriptor.hpp"
+#include "hayai_test_result.hpp"
+#include "hayai_console_outputter.hpp"
+
+
+namespace hayai
+{
+    /// Benchmarking execution controller singleton.
+    class Benchmarker
+    {
+    public:
+        /// Get the singleton instance of @ref Benchmarker.
+
+        /// @returns a reference to the singleton instance of the
+        /// benchmarker execution controller.
+        static Benchmarker& Instance()
+        {
+            static Benchmarker singleton;
+            return singleton;
+        }
+
+
+        /// Register a test with the benchmarker instance.
+
+        /// @param fixtureName Name of the fixture.
+        /// @param testName Name of the test.
+        /// @param runs Number of runs for the test.
+        /// @param iterations Number of iterations per run.
+        /// @param testFactory Test factory implementation for the test.
+        /// @returns a pointer to a @ref TestDescriptor instance
+        /// representing the given test.
+        static TestDescriptor* RegisterTest(
+            const char* fixtureName,
+            const char* testName,
+            std::size_t runs,
+            std::size_t iterations,
+            TestFactory* testFactory,
+            TestParametersDescriptor parameters
+        )
+        {
+            // Determine if the test has been disabled.
+            static const char* disabledPrefix = "DISABLED_";
+            bool isDisabled = ((::strlen(testName) >= 9) &&
+                               (!::memcmp(testName, disabledPrefix, 9)));
+
+            if (isDisabled)
+                testName += 9;
+
+            // Add the descriptor.
+            TestDescriptor* descriptor = new TestDescriptor(fixtureName,
+                                                            testName,
+                                                            runs,
+                                                            iterations,
+                                                            testFactory,
+                                                            parameters,
+                                                            isDisabled);
+
+            Instance()._tests.push_back(descriptor);
+
+            return descriptor;
+        }
+
+
+        /// Add an outputter.
+
+        /// @param outputter Outputter. The caller must ensure that the
+        /// outputter remains in existence for the entire benchmark run.
+        static void AddOutputter(Outputter& outputter)
+        {
+            Instance()._outputters.push_back(&outputter);
+        }
+
+
+        /// Apply a pattern filter to the tests.
+
+        /// --gtest_filter-compatible pattern:
+        ///
+        /// https://code.google.com/p/googletest/wiki/AdvancedGuide
+        ///
+        /// @param pattern Filter pattern compatible with gtest.
+        static void ApplyPatternFilter(const char* pattern)
+        {
+            Benchmarker& instance = Instance();
+
+            // Split the filter at '-' if it exists.
+            const char* const dash = strchr(pattern, '-');
+
+            std::string positive;
+            std::string negative;
+
+            if (dash == NULL)
+                positive = pattern;
+            else
+            {
+                positive = std::string(pattern, dash);
+                negative = std::string(dash + 1);
+                if (positive.empty())
+                    positive = "*";
+            }
+
+            // Iterate across all tests and test them against the patterns.
+            std::size_t index = 0;
+            while (index < instance._tests.size())
+            {
+                TestDescriptor* desc = instance._tests[index];
+
+                if ((!FilterMatchesString(positive.c_str(),
+                                          desc->CanonicalName)) ||
+                    (FilterMatchesString(negative.c_str(),
+                                         desc->CanonicalName)))
+                {
+                    instance._tests.erase(
+                        instance._tests.begin() +
+                        std::vector<TestDescriptor*>::difference_type(index)
+                    );
+                    delete desc;
+                }
+                else
+                    ++index;
+            }
+        }
+
+
+        /// Run all benchmarking tests.
+        static void RunAllTests()
+        {
+            ConsoleOutputter defaultOutputter;
+            std::vector<Outputter*> defaultOutputters;
+            defaultOutputters.push_back(&defaultOutputter);
+
+            Benchmarker& instance = Instance();
+            std::vector<Outputter*>& outputters =
+                (instance._outputters.empty() ?
+                 defaultOutputters :
+                 instance._outputters);
+
+            // Get the tests for execution.
+            std::vector<TestDescriptor*> tests = instance.GetTests();
+
+            const std::size_t totalCount = tests.size();
+            std::size_t disabledCount = 0;
+
+            std::vector<TestDescriptor*>::const_iterator testsIt =
+                tests.begin();
+
+            while (testsIt != tests.end())
+            {
+                if ((*testsIt)->IsDisabled)
+                    ++disabledCount;
+                ++testsIt;
+            }
+
+            const std::size_t enabledCount = totalCount - disabledCount;
+
+            // Calibrate the tests.
+            const CalibrationModel calibrationModel = GetCalibrationModel();
+
+            // Begin output.
+            for (std::size_t outputterIndex = 0;
+                 outputterIndex < outputters.size();
+                 outputterIndex++)
+                outputters[outputterIndex]->Begin(enabledCount, disabledCount);
+
+            // Run through all the tests in ascending order.
+            std::size_t index = 0;
+
+            while (index < tests.size())
+            {
+                // Get the test descriptor.
+                TestDescriptor* descriptor = tests[index++];
+
+                // Check if test matches include filters
+                if (instance._include.size() > 0)
+                {
+                    bool included = false;
+                    std::string name =
+                        descriptor->FixtureName + "." +
+                        descriptor->TestName;
+
+                    for (std::size_t i = 0; i < instance._include.size(); i++)
+                    {
+                        if (name.find(instance._include[i]) !=
+                            std::string::npos)
+                        {
+                            included = true;
+                            break;
+                        }
+                    }
+
+                    if (!included)
+                        continue;
+                }
+
+                // Check if test is not disabled.
+                if (descriptor->IsDisabled)
+                {
+                    for (std::size_t outputterIndex = 0;
+                         outputterIndex < outputters.size();
+                         outputterIndex++)
+                        outputters[outputterIndex]->SkipDisabledTest(
+                            descriptor->FixtureName,
+                            descriptor->TestName,
+                            descriptor->Parameters,
+                            descriptor->Runs,
+                            descriptor->Iterations
+                        );
+
+                    continue;
+                }
+
+                // Describe the beginning of the run.
+                for (std::size_t outputterIndex = 0;
+                     outputterIndex < outputters.size();
+                     outputterIndex++)
+                    outputters[outputterIndex]->BeginTest(
+                        descriptor->FixtureName,
+                        descriptor->TestName,
+                        descriptor->Parameters,
+                        descriptor->Runs,
+                        descriptor->Iterations
+                    );
+
+                // Execute each individual run.
+                std::vector<uint64_t> runTimes(descriptor->Runs);
+                uint64_t overheadCalibration =
+                    calibrationModel.GetCalibration(descriptor->Iterations);
+
+                std::size_t run = 0;
+                while (run < descriptor->Runs)
+                {
+                    // Construct a test instance.
+                    Test* test = descriptor->Factory->CreateTest();
+
+                    // Run the test.
+                    uint64_t time = test->Run(descriptor->Iterations);
+
+                    // Store the test time.
+                    runTimes[run] = (time > overheadCalibration ?
+                                     time - overheadCalibration :
+                                     0);
+
+                    // Dispose of the test instance.
+                    delete test;
+
+                    ++run;
+                }
+
+                // Calculate the test result.
+                TestResult testResult(runTimes, descriptor->Iterations);
+
+                // Describe the end of the run.
+                for (std::size_t outputterIndex = 0;
+                     outputterIndex < outputters.size();
+                     outputterIndex++)
+                    outputters[outputterIndex]->EndTest(
+                        descriptor->FixtureName,
+                        descriptor->TestName,
+                        descriptor->Parameters,
+                        testResult
+                    );
+
+            }
+
+            // End output.
+            for (std::size_t outputterIndex = 0;
+                 outputterIndex < outputters.size();
+                 outputterIndex++)
+                outputters[outputterIndex]->End(enabledCount,
+                                                disabledCount);
+        }
+
+
+        /// List tests.
+        static std::vector<const TestDescriptor*> ListTests()
+        {
+            std::vector<const TestDescriptor*> tests;
+            Benchmarker& instance = Instance();
+
+            std::size_t index = 0;
+            while (index < instance._tests.size())
+                tests.push_back(instance._tests[index++]);
+
+            return tests;
+        }
+
+
+        /// Shuffle tests.
+
+        /// Randomly shuffles the order of tests.
+        static void ShuffleTests()
+        {
+            Benchmarker& instance = Instance();
+#if __cplusplus > 201100L
+            std::random_device rd;
+            std::mt19937 g(rd());
+            std::shuffle(instance._tests.begin(),
+                         instance._tests.end(),
+                         g);
+#else
+            std::random_shuffle(instance._tests.begin(),
+                                instance._tests.end());
+#endif
+        }
+    private:
+        /// Calibration model.
+
+        /// Describes a linear calibration model for test runs.
+        struct CalibrationModel
+        {
+        public:
+            CalibrationModel(std::size_t scale,
+                             uint64_t slope,
+                             uint64_t yIntercept)
+                :   Scale(scale),
+                    Slope(slope),
+                    YIntercept(yIntercept)
+            {
+
+            }
+
+            
+            /// Scale.
+
+            /// Number of iterations per slope unit.
+            const std::size_t Scale;
+
+
+            /// Slope.
+            const uint64_t Slope;
+
+
+            /// Y-intercept;
+            const uint64_t YIntercept;
+
+
+            /// Get calibration value for a run.
+            int64_t GetCalibration(std::size_t iterations) const
+            {
+                return YIntercept + (iterations * Slope) / Scale;
+            }
+        };
+
+        
+        /// Private constructor.
+        Benchmarker()
+        {
+
+        }
+
+
+        /// Private destructor.
+        ~Benchmarker()
+        {
+            // Release all test descriptors.
+            std::size_t index = _tests.size();
+            while (index--)
+                delete _tests[index];
+        }
+
+
+        /// Get the tests to be executed.
+        std::vector<TestDescriptor*> GetTests() const
+        {
+            std::vector<TestDescriptor*> tests;
+
+            std::size_t index = 0;
+            while (index < _tests.size())
+                tests.push_back(_tests[index++]);
+
+            return tests;
+        }
+
+
+        /// Test if a filter matches a string.
+
+        /// Adapted from gtest. All rights reserved by original authors.
+        static bool FilterMatchesString(const char* filter,
+                                        const std::string& str)
+        {
+            const char *patternStart = filter;
+
+            while (true)
+            {
+                if (PatternMatchesString(patternStart, str.c_str()))
+                    return true;
+
+                // Finds the next pattern in the filter.
+                patternStart = strchr(patternStart, ':');
+
+                // Returns if no more pattern can be found.
+                if (!patternStart)
+                    return false;
+
+                // Skips the pattern separater (the ':' character).
+                patternStart++;
+            }
+        }
+
+
+        /// Test if pattern matches a string.
+
+        /// Adapted from gtest. All rights reserved by original authors.
+        static bool PatternMatchesString(const char* pattern, const char *str)
+        {
+            switch (*pattern)
+            {
+            case '\0':
+            case ':':
+                return (*str == '\0');
+            case '?':  // Matches any single character.
+                return ((*str != '\0') &&
+                        (PatternMatchesString(pattern + 1, str + 1)));
+            case '*':  // Matches any string (possibly empty) of characters.
+                return (((*str != '\0') &&
+                         (PatternMatchesString(pattern, str + 1))) ||
+                        (PatternMatchesString(pattern + 1, str)));
+            default:
+                return ((*pattern == *str) &&
+                        (PatternMatchesString(pattern + 1, str + 1)));
+            }
+        }
+
+
+        /// Get calibration model.
+
+        /// Returns an average linear calibration model.
+        static CalibrationModel GetCalibrationModel()
+        {
+            // We perform a number of runs of varying iterations with an empty
+            // test body. The assumption here is, that the time taken for the
+            // test run is linear with regards to the number of iterations, ie.
+            // some constant overhead with a per-iteration overhead. This
+            // hypothesis has been manually validated by linear regression over
+            // sample data.
+            //
+            // In order to avoid losing too much precision, we are going to
+            // calibrate in terms of the overhead of some x n iterations,
+            // where n must be a sufficiently large number to produce some
+            // significant runtime. On a high-end 2012 Retina MacBook Pro with
+            // -O3 on clang-602.0.53 (LLVM 6.1.0) n = 1,000,000 produces
+            // run times of ~1.9 ms, which should be sufficiently precise.
+            //
+            // However, as the constant overhead is mostly related to
+            // retrieving the system clock, which under the same conditions
+            // clocks in at around 17 ms, we run the risk of winding up with
+            // a negative y-intercept if we do not fix the y-intercept. This
+            // intercept is therefore fixed by a large number of runs of 0
+            // iterations.
+            ::hayai::Test* test = new Test();
+
+#define HAYAI_CALIBRATION_INTERESECT_RUNS 10000
+
+#define HAYAI_CALIBRATION_RUNS 10
+#define HAYAI_CALIBRATION_SCALE 1000000
+#define HAYAI_CALIBRATION_PPR 6
+
+            // Determine the intercept.
+            uint64_t
+                interceptSum = 0,
+                interceptMin = std::numeric_limits<uint64_t>::min(),
+                interceptMax = 0;
+
+            for (std::size_t run = 0;
+                 run < HAYAI_CALIBRATION_INTERESECT_RUNS;
+                 ++run)
+            {
+                uint64_t intercept = test->Run(0);
+                interceptSum += intercept;
+                if (intercept < interceptMin)
+                    interceptMin = intercept;
+                if (intercept > interceptMax)
+                    interceptMax = intercept;
+            }
+
+            uint64_t interceptAvg =
+                interceptSum / HAYAI_CALIBRATION_INTERESECT_RUNS;
+
+            // Produce a series of sample points.
+            std::vector<uint64_t> x(HAYAI_CALIBRATION_RUNS *
+                                    HAYAI_CALIBRATION_PPR);
+            std::vector<uint64_t> t(HAYAI_CALIBRATION_RUNS *
+                                    HAYAI_CALIBRATION_PPR);
+
+            std::size_t point = 0;
+
+            for (std::size_t run = 0; run < HAYAI_CALIBRATION_RUNS; ++run)
+            {
+#define HAYAI_CALIBRATION_POINT(_x)                                     \
+                x[point] = _x;                                          \
+                t[point++] =                                            \
+                    test->Run(_x * std::size_t(HAYAI_CALIBRATION_SCALE))
+
+                HAYAI_CALIBRATION_POINT(1);
+                HAYAI_CALIBRATION_POINT(2);
+                HAYAI_CALIBRATION_POINT(5);
+                HAYAI_CALIBRATION_POINT(10);
+                HAYAI_CALIBRATION_POINT(15);
+                HAYAI_CALIBRATION_POINT(20);
+
+#undef HAYAI_CALIBRATION_POINT
+            }
+
+            // As we have a fixed y-intercept, b, the optimal slope for a line
+            // fitting the sample points will be
+            // $\frac {\sum_{i=1}^{n} x_n \cdot (y_n - b)}
+            //  {\sum_{i=1}^{n} {x_n}^2}$.
+            uint64_t
+                sumProducts = 0,
+                sumXSquared = 0;
+
+            std::size_t p = x.size();
+            while (p--)
+            {
+                sumXSquared += x[p] * x[p];
+                sumProducts += x[p] * (t[p] - interceptAvg);
+            }
+
+            uint64_t slope = sumProducts / sumXSquared;
+
+            delete test;
+
+            return CalibrationModel(HAYAI_CALIBRATION_SCALE,
+                                    slope,
+                                    interceptAvg);
+
+#undef HAYAI_CALIBRATION_INTERESECT_RUNS
+
+#undef HAYAI_CALIBRATION_RUNS
+#undef HAYAI_CALIBRATION_SCALE
+#undef HAYAI_CALIBRATION_PPR
+        }
+
+
+        std::vector<Outputter*> _outputters; ///< Registered outputters.
+        std::vector<TestDescriptor*> _tests; ///< Registered tests.
+        std::vector<std::string> _include; ///< Test filters.
+    };
+}
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_clock.hpp b/deps/inja/third_party/include/hayai/hayai_clock.hpp
new file mode 100755
index 0000000..c6d4e41
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_clock.hpp
@@ -0,0 +1,367 @@
+//
+// System-specific implementation of the clock functions.
+//
+// Copyright (C) 2011 Nick Bruun <nick@bruun.co>
+// Copyright (C) 2013 Vlad Lazarenko <vlad@lazarenko.me>
+// Copyright (C) 2014 Nicolas Pauss <nicolas.pauss@gmail.com>
+//
+// Implementation notes:
+//
+// On Windows, QueryPerformanceCounter() is used. It gets
+// real-time clock with up to nanosecond precision.
+//
+// On Apple (OS X, iOS), mach_absolute_time() is used. It gets
+// CPU/bus dependent real-time clock with up to nanosecond precision.
+//
+// On Unix, gethrtime() is used with HP-UX and Solaris. Otherwise,
+// clock_gettime() is used to access monotonic real-time clock
+// with up to nanosecond precision. On kernels 2.6.28 and newer, the ticks
+// are also raw and are not subject to NTP and/or adjtime(3) adjustments.
+//
+// Other POSIX compliant platforms resort to using gettimeofday(). It is
+// subject to clock adjustments, does not allow for higher than microsecond
+// resolution and is also declared obsolete by POSIX.1-2008.
+//
+// Note on C++11:
+//
+// Starting with C++11, we could use std::chrono. However, the details of
+// what clock is really being used is implementation-specific. For example,
+// Visual Studio 2012 defines "high_resolution_clock" as system clock with
+// ~1 millisecond precision that is not acceptable for performance
+// measurements. Therefore, we are much better off having full control of what
+// mechanism we use to obtain the system clock.
+//
+// Note on durations: it is assumed that end times passed to the clock methods
+// are all after the start time. Wrap-around of clocks is not tested, as
+// nanosecond precision of unsigned 64-bit integers would require an uptime of
+// almost 585 years for this to happen. Let's call ourselves safe on that one.
+//
+#ifndef __HAYAI_CLOCK
+#define __HAYAI_CLOCK
+
+#include "hayai_compatibility.hpp"
+
+
+// POSIX
+#if defined(__unix__) || (defined(__APPLE__) && defined(__MACH__))
+#include <unistd.h>
+#endif
+
+// Win32
+#if defined(_WIN32)
+#ifndef NOMINMAX
+#define NOMINMAX
+#endif
+#include <windows.h>
+
+// Apple
+#elif defined(__APPLE__) && defined(__MACH__)
+#include <mach/mach_time.h>
+
+// Unix
+#elif defined(__unix__) || defined(__unix) || defined(unix)
+
+// gethrtime
+#   if (defined(__hpux) || defined(hpux)) || ((defined(__sun__) || defined(__sun) || defined(sun)) && (defined(__SVR4) || defined(__svr4__)))
+#   include <sys/time.h>
+
+// clock_gettime
+#   elif defined(_POSIX_TIMERS) && (_POSIX_TIMERS > 0)
+#   include <time.h>
+
+// gettimeofday
+#   else
+#   include <sys/time.h>
+
+#   endif
+#else
+#error "Unable to define high resolution timer for an unknown OS."
+#endif
+
+#include <stdexcept>
+#include <stdint.h>
+
+
+namespace hayai
+{
+// Win32
+#if defined(_WIN32)
+    class Clock
+    {
+    public:
+        /// Time point.
+
+        /// Opaque representation of a point in time.
+        typedef LARGE_INTEGER TimePoint;
+
+
+        /// Get the current time as a time point.
+
+        /// @returns the current time point.
+        static TimePoint Now()
+        {
+            TimePoint result;
+            QueryPerformanceCounter(&result);
+            return result;
+        }
+
+
+        /// Get the duration between two time points.
+
+        /// @param startTime Start time point.
+        /// @param endTime End time point.
+        /// @returns the number of nanoseconds elapsed between the two time
+        /// points.
+        static uint64_t Duration(const TimePoint& startTime,
+                                 const TimePoint& endTime)
+        {
+            const static double performanceFrequencyNs =
+                PerformanceFrequencyNs();
+
+            return static_cast<uint64_t>(
+                (endTime.QuadPart - startTime.QuadPart)
+                * performanceFrequencyNs
+            );
+        }
+
+
+        /// Clock implementation description.
+
+        /// @returns a description of the clock implementation used.
+        static const char* Description()
+        {
+            return "QueryPerformanceCounter";
+        }
+    private:
+        static double PerformanceFrequencyNs()
+        {
+            TimePoint result;
+            QueryPerformanceFrequency(&result);
+            return 1e9 / static_cast<double>(result.QuadPart);
+        }
+    };
+
+// Mach kernel.
+#elif defined(__APPLE__) && defined(__MACH__)
+    class Clock
+    {
+    public:
+        /// Time point.
+
+        /// Opaque representation of a point in time.
+        typedef uint64_t TimePoint;
+
+
+        /// Get the current time as a time point.
+
+        /// @returns the current time point.
+        static TimePoint Now() __hayai_noexcept
+        {
+            return mach_absolute_time();
+        }
+
+
+        /// Get the duration between two time points.
+
+        /// @param startTime Start time point.
+        /// @param endTime End time point.
+        /// @returns the number of nanoseconds elapsed between the two time
+        /// points.
+        static uint64_t Duration(const TimePoint& startTime,
+                                 const TimePoint& endTime) __hayai_noexcept
+        {
+            mach_timebase_info_data_t time_info;
+            mach_timebase_info(&time_info);
+
+            return (endTime - startTime) * time_info.numer / time_info.denom;
+        }
+
+
+        /// Clock implementation description.
+
+        /// @returns a description of the clock implementation used.
+        static const char* Description()
+        {
+            return "mach_absolute_time";
+        }
+    };
+
+// Unix
+#elif defined(__unix__) || defined(__unix) || defined(unix)
+
+// gethrtime
+#   if (defined(__hpux) || defined(hpux)) || ((defined(__sun__) || defined(__sun) || defined(sun)) && (defined(__SVR4) || defined(__svr4__)))
+    class Clock
+    {
+    public:
+        /// Time point.
+
+        /// Opaque representation of a point in time.
+        typedef hrtime_t TimePoint;
+
+
+        /// Get the current time as a time point.
+
+        /// @returns the current time point.
+        static TimePoint Now() __hayai_noexcept
+        {
+            return gethrtime();
+        }
+
+
+        /// Get the duration between two time points.
+
+        /// @param startTime Start time point.
+        /// @param endTime End time point.
+        /// @returns the number of nanoseconds elapsed between the two time
+        /// points.
+        static uint64_t Duration(const TimePoint& startTime,
+                                 const TimePoint& endTime) __hayai_noexcept
+        {
+            return static_cast<uint64_t>(endTime - startTime);
+        }
+
+
+        /// Clock implementation description.
+
+        /// @returns a description of the clock implementation used.
+        static const char* Description()
+        {
+            return "gethrtime";
+        }
+    };
+
+
+// clock_gettime
+#   elif defined(_POSIX_TIMERS) && (_POSIX_TIMERS > 0)
+    class Clock
+    {
+    public:
+        /// Time point.
+
+        /// Opaque representation of a point in time.
+        typedef struct timespec TimePoint;
+
+
+        /// Get the current time as a time point.
+
+        /// @returns the current time point.
+        static TimePoint Now() __hayai_noexcept
+        {
+            TimePoint result;
+#       if   defined(CLOCK_MONOTONIC_RAW)
+            clock_gettime(CLOCK_MONOTONIC_RAW, &result);
+#       elif defined(CLOCK_MONOTONIC)
+            clock_gettime(CLOCK_MONOTONIC, &result);
+#       elif defined(CLOCK_REALTIME)
+            clock_gettime(CLOCK_REALTIME, &result);
+#       else
+            clock_gettime((clocId_t)-1, &result);
+#       endif
+            return result;
+        }
+
+
+        /// Get the duration between two time points.
+
+        /// @param startTime Start time point.
+        /// @param endTime End time point.
+        /// @returns the number of nanoseconds elapsed between the two time
+        /// points.
+        static uint64_t Duration(const TimePoint& startTime,
+                                 const TimePoint& endTime) __hayai_noexcept
+        {
+            TimePoint timeDiff;
+
+            timeDiff.tv_sec = endTime.tv_sec - startTime.tv_sec;
+            if (endTime.tv_nsec < startTime.tv_nsec)
+            {
+                timeDiff.tv_nsec = endTime.tv_nsec + 1000000000LL -
+                    startTime.tv_nsec;
+                timeDiff.tv_sec--;
+            }
+            else
+                timeDiff.tv_nsec = endTime.tv_nsec - startTime.tv_nsec;
+
+            return static_cast<uint64_t>(timeDiff.tv_sec * 1000000000LL +
+                                         timeDiff.tv_nsec);
+        }
+
+
+        /// Clock implementation description.
+
+        /// @returns a description of the clock implementation used.
+        static const char* Description()
+        {
+#       if   defined(CLOCK_MONOTONIC_RAW)
+            return "clock_gettime(CLOCK_MONOTONIC_RAW)";
+#       elif defined(CLOCK_MONOTONIC)
+            return "clock_gettime(CLOCK_MONOTONIC)";
+#       elif defined(CLOCK_REALTIME)
+            return "clock_gettime(CLOCK_REALTIME)";
+#       else
+            return "clock_gettime(-1)";
+#       endif
+        }
+    };
+
+// gettimeofday
+#   else
+    class Clock
+    {
+    public:
+        /// Time point.
+
+        /// Opaque representation of a point in time.
+        typedef struct timeval TimePoint;
+
+
+        /// Get the current time as a time point.
+
+        /// @returns the current time point.
+        static TimePoint Now() __hayai_noexcept
+        {
+            TimePoint result;
+            gettimeofday(&result, NULL);
+            return result;
+        }
+
+
+        /// Get the duration between two time points.
+
+        /// @param startTime Start time point.
+        /// @param endTime End time point.
+        /// @returns the number of nanoseconds elapsed between the two time
+        /// points.
+        static uint64_t Duration(const TimePoint& startTime,
+                                 const TimePoint& endTime) __hayai_noexcept
+        {
+            TimePoint timeDiff;
+
+            timeDiff.tv_sec = endTime.tv_sec - startTime.tv_sec;
+            if (endTime.tv_usec < startTime.tv_usec)
+            {
+                timeDiff.tv_usec = endTime.tv_usec + 1000000L -
+                    startTime.tv_usec;
+                timeDiff.tv_sec--;
+            }
+            else
+                timeDiff.tv_usec = endTime.tv_usec - startTime.tv_usec;
+
+            return static_cast<uint64_t>(timeDiff.tv_sec * 1000000000LL +
+                                         timeDiff.tv_usec * 1000);
+        }
+
+
+        /// Clock implementation description.
+
+        /// @returns a description of the clock implementation used.
+        static const char* Description()
+        {
+            return "gettimeofday";
+        }
+    };
+#   endif
+#endif
+}
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_compatibility.hpp b/deps/inja/third_party/include/hayai/hayai_compatibility.hpp
new file mode 100755
index 0000000..8cb5307
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_compatibility.hpp
@@ -0,0 +1,10 @@
+#ifndef __HAYAI_COMPATIBILITY
+#define __HAYAI_COMPATIBILITY
+
+#    if __cplusplus > 201100L
+#        define __hayai_noexcept noexcept
+#    else
+#        define __hayai_noexcept
+#    endif
+
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_console.hpp b/deps/inja/third_party/include/hayai/hayai_console.hpp
new file mode 100755
index 0000000..6639890
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_console.hpp
@@ -0,0 +1,199 @@
+#ifndef __HAYAI_CONSOLE
+#define __HAYAI_CONSOLE
+
+#include <iostream>
+
+#if !defined(HAYAI_NO_COLOR)
+#    if defined(_WIN32)
+#        ifndef NOMINMAX
+#            define NOMINMAX
+#        endif
+#        include <windows.h>
+#    else
+#        include <unistd.h>
+#        include <cstdio>
+#    endif
+#endif
+
+
+namespace hayai
+{
+    /// Static helper class for outputting to a terminal/console.
+    class Console
+    {
+    public:
+        /// Console text colors.
+        enum TextColor
+        {
+            /// Default console color. Used for resets.
+            TextDefault,
+
+            /// Black.
+            ///
+            /// @warning Avoid using black unless it is absolutely necesssary.
+            TextBlack,
+
+            /// Blue.
+            TextBlue,
+
+            /// Green.
+            TextGreen,
+
+            /// Cyan.
+            TextCyan,
+
+            /// Red.
+            TextRed,
+
+            /// Purple.
+            TextPurple,
+
+            /// Yellow.
+            TextYellow,
+
+            /// White.
+            ///
+            /// @warning Avoid using white unless it is absolutely necessary.
+            TextWhite
+        };
+
+
+        /// Get the singleton instance of @ref Console.
+
+        /// @returns a reference to the singleton instance of the
+        /// benchmarker execution controller.
+        inline static Console& Instance()
+        {
+            static Console singleton;
+            return singleton;
+        }
+
+
+        /// Test if formatting is enabled.
+        inline static bool IsFormattingEnabled()
+        {
+            return Instance()._formattingEnabled;
+        }
+
+
+        /// Set whether formatting is enabled.
+        inline static void SetFormattingEnabled(bool enabled)
+        {
+            Instance()._formattingEnabled = enabled;
+        }
+    private:
+        inline Console()
+            :   _formattingEnabled(true)
+        {
+
+        }
+
+
+        bool _formattingEnabled;
+    };
+
+#if defined(_WIN32) && !defined(HAYAI_NO_COLOR) // Windows
+    static inline WORD GetConsoleAttributes()
+    {
+        CONSOLE_SCREEN_BUFFER_INFO consoleInfo;
+        GetConsoleScreenBufferInfo(GetStdHandle(STD_OUTPUT_HANDLE),
+                                   &consoleInfo);
+        return consoleInfo.wAttributes;
+    }
+
+    inline std::ostream& operator <<(std::ostream& stream,
+                                     const Console::TextColor& color)
+    {
+        static const WORD defaultConsoleAttributes =
+            GetConsoleAttributes();
+        WORD newColor;
+
+        if ((!Console::IsFormattingEnabled()) ||
+            ((stream.rdbuf() != std::cout.rdbuf()) &&
+             (stream.rdbuf() != std::cerr.rdbuf())))
+            return stream;
+
+        switch(color)
+        {
+            case Console::TextDefault:
+                newColor = defaultConsoleAttributes;
+                break;
+            case Console::TextBlack:
+                newColor = 0;
+                break;
+            case Console::TextBlue:
+                newColor = FOREGROUND_BLUE;
+                break;
+            case Console::TextGreen:
+                newColor = FOREGROUND_GREEN;
+                break;
+            case Console::TextCyan:
+                newColor = FOREGROUND_GREEN | FOREGROUND_BLUE;
+                break;
+            case Console::TextRed:
+                newColor = FOREGROUND_RED;
+                break;
+            case Console::TextPurple:
+                newColor = FOREGROUND_RED | FOREGROUND_BLUE;
+                break;
+            case Console::TextYellow:
+                newColor =
+                    FOREGROUND_RED |
+                    FOREGROUND_GREEN |
+                    FOREGROUND_INTENSITY;
+                break;
+            case Console::TextWhite:
+                newColor =
+                    FOREGROUND_RED |
+                    FOREGROUND_GREEN |
+                    FOREGROUND_BLUE |
+                    FOREGROUND_INTENSITY;
+                break;
+        }
+        SetConsoleTextAttribute(GetStdHandle(STD_OUTPUT_HANDLE), newColor);
+        return stream;
+    }
+#elif !defined(HAYAI_NO_COLOR) // Linux or others
+    inline std::ostream& operator <<(std::ostream& stream,
+                                     const Console::TextColor& color)
+    {
+        static const bool outputNoColor = isatty(fileno(stdout)) != 1;
+
+        if ((!Console::IsFormattingEnabled()) ||
+            (outputNoColor) ||
+            ((stream.rdbuf() != std::cout.rdbuf()) &&
+             (stream.rdbuf() != std::cerr.rdbuf())))
+            return stream;
+
+        const char* value = "";
+        switch(color) {
+            case Console::TextDefault:
+                value = "\033[m"; break;
+            case Console::TextBlack:
+                value = "\033[0;30m"; break;
+            case Console::TextBlue:
+                value = "\033[0;34m"; break;
+            case Console::TextGreen:
+                value = "\033[0;32m"; break;
+            case Console::TextCyan:
+                value = "\033[0;36m"; break;
+            case Console::TextRed:
+                value = "\033[0;31m"; break;
+            case Console::TextPurple:
+                value = "\033[0;35m"; break;
+            case Console::TextYellow:
+                value = "\033[0;33m"; break;
+            case Console::TextWhite:
+                value = "\033[0;37m"; break;
+        }
+        return stream << value;
+    }
+#else // No color
+    inline std::ostream& operator <<(std::ostream& stream,
+                                     const Console::TextColor&)
+    {
+        return stream;
+    }
+#endif
+}
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_console_outputter.hpp b/deps/inja/third_party/include/hayai/hayai_console_outputter.hpp
new file mode 100755
index 0000000..f7cddd5
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_console_outputter.hpp
@@ -0,0 +1,284 @@
+#ifndef __HAYAI_CONSOLEOUTPUTTER
+#define __HAYAI_CONSOLEOUTPUTTER
+#include "hayai_outputter.hpp"
+#include "hayai_console.hpp"
+
+
+namespace hayai
+{
+    /// Console outputter.
+
+    /// Prints the result to standard output.
+    class ConsoleOutputter
+        :   public Outputter
+    {
+    public:
+        /// Initialize console outputter.
+
+        /// @param stream Output stream. Must exist for the entire duration of
+        /// the outputter's use.
+        ConsoleOutputter(std::ostream& stream = std::cout)
+            :   _stream(stream)
+        {
+
+        }
+
+
+        virtual void Begin(const std::size_t& enabledCount,
+                           const std::size_t& disabledCount)
+        {
+            _stream << std::fixed;
+            _stream << Console::TextGreen << "[==========]"
+                    << Console::TextDefault << " Running "
+                    << enabledCount
+                    << (enabledCount == 1 ? " benchmark." : " benchmarks");
+
+            if (disabledCount)
+                _stream << ", skipping "
+                        << disabledCount
+                        << (disabledCount == 1 ?
+                            " benchmark." :
+                            " benchmarks");
+            else
+                _stream << ".";
+
+            _stream << std::endl;
+        }
+
+
+        virtual void End(const std::size_t& executedCount,
+                         const std::size_t& disabledCount)
+        {
+            _stream << Console::TextGreen << "[==========]"
+                    << Console::TextDefault << " Ran " << executedCount
+                    << (executedCount == 1 ?
+                        " benchmark." :
+                        " benchmarks");
+
+            if (disabledCount)
+                _stream << ", skipped "
+                        << disabledCount
+                        << (disabledCount == 1 ?
+                            " benchmark." :
+                            " benchmarks");
+            else
+                _stream << ".";
+
+            _stream << std::endl;
+        }
+
+
+        inline void BeginOrSkipTest(const std::string& fixtureName,
+                                    const std::string& testName,
+                                    const TestParametersDescriptor& parameters,
+                                    const std::size_t& runsCount,
+                                    const std::size_t& iterationsCount,
+                                    const bool skip)
+        {
+            if (skip)
+                _stream << Console::TextCyan << "[ DISABLED ]";
+            else
+                _stream << Console::TextGreen << "[ RUN      ]";
+
+            _stream << Console::TextYellow << " ";
+            WriteTestNameToStream(_stream, fixtureName, testName, parameters);
+            _stream << Console::TextDefault
+                    << " (" << runsCount
+                    << (runsCount == 1 ? " run, " : " runs, ")
+                    << iterationsCount
+                    << (iterationsCount == 1 ?
+                        " iteration per run)" :
+                        " iterations per run)")
+                    << std::endl;
+        }
+
+
+        virtual void BeginTest(const std::string& fixtureName,
+                               const std::string& testName,
+                               const TestParametersDescriptor& parameters,
+                               const std::size_t& runsCount,
+                               const std::size_t& iterationsCount)
+        {
+            BeginOrSkipTest(fixtureName,
+                            testName,
+                            parameters,
+                            runsCount,
+                            iterationsCount,
+                            false);
+        }
+
+
+        virtual void SkipDisabledTest(
+            const std::string& fixtureName,
+            const std::string& testName,
+            const TestParametersDescriptor& parameters,
+            const std::size_t& runsCount,
+            const std::size_t& iterationsCount
+        )
+        {
+            BeginOrSkipTest(fixtureName,
+                            testName,
+                            parameters,
+                            runsCount,
+                            iterationsCount,
+                            true);
+        }
+
+
+        virtual void EndTest(const std::string& fixtureName,
+                             const std::string& testName,
+                             const TestParametersDescriptor& parameters,
+                             const TestResult& result)
+        {
+#define PAD(x) _stream << std::setw(34) << x << std::endl;
+#define PAD_DEVIATION(description,                                      \
+                      deviated,                                         \
+                      average,                                          \
+                      unit)                                             \
+            {                                                           \
+                double _d_ =                                            \
+                    double(deviated) - double(average);                 \
+                                                                        \
+                PAD(description <<                                      \
+                    deviated << " " << unit << " (" <<                  \
+                    (deviated < average ?                               \
+                     Console::TextRed :                                 \
+                     Console::TextGreen) <<                             \
+                    (deviated > average ? "+" : "") <<                  \
+                    _d_ << " " << unit << " / " <<                      \
+                    (deviated > average ? "+" : "") <<                  \
+                    (_d_ * 100.0 / average) << " %" <<                  \
+                    Console::TextDefault << ")");                       \
+            }
+#define PAD_DEVIATION_INVERSE(description,                              \
+                              deviated,                                 \
+                              average,                                  \
+                              unit)                                     \
+            {                                                           \
+                double _d_ =                                            \
+                    double(deviated) - double(average);                 \
+                                                                        \
+                PAD(description <<                                      \
+                    deviated << " " << unit << " (" <<                  \
+                    (deviated > average ?                               \
+                     Console::TextRed :                                 \
+                     Console::TextGreen) <<                             \
+                    (deviated > average ? "+" : "") <<                  \
+                    _d_ << " " << unit << " / " <<                      \
+                    (deviated > average ? "+" : "") <<                  \
+                    (_d_ * 100.0 / average) << " %" <<                  \
+                    Console::TextDefault << ")");                       \
+            }
+
+            _stream << Console::TextGreen << "[     DONE ]"
+                    << Console::TextYellow << " ";
+            WriteTestNameToStream(_stream, fixtureName, testName, parameters);
+            _stream << Console::TextDefault << " ("
+                    << std::setprecision(6)
+                    << (result.TimeTotal() / 1000000.0) << " ms)"
+                    << std::endl;
+
+            _stream << Console::TextBlue << "[   RUNS   ] "
+                    << Console::TextDefault
+                    << "       Average time: "
+                    << std::setprecision(3)
+                    << result.RunTimeAverage() / 1000.0 << " us "
+                    << "(" << Console::TextBlue << "~"
+                    << result.RunTimeStdDev() / 1000.0 << " us"
+                    << Console::TextDefault << ")"
+                    << std::endl;
+
+            PAD_DEVIATION_INVERSE("Fastest time: ",
+                                  (result.RunTimeMinimum() / 1000.0),
+                                  (result.RunTimeAverage() / 1000.0),
+                                  "us");
+            PAD_DEVIATION_INVERSE("Slowest time: ",
+                                  (result.RunTimeMaximum() / 1000.0),
+                                  (result.RunTimeAverage() / 1000.0),
+                                  "us");
+            PAD("Median time: " <<
+                result.RunTimeMedian() / 1000.0 << " us (" <<
+                Console::TextCyan << "1st quartile: " <<
+                result.RunTimeQuartile1() / 1000.0 << " us | 3rd quartile: " <<
+                result.RunTimeQuartile3() / 1000.0 << " us" <<
+                Console::TextDefault << ")");
+
+            _stream << std::setprecision(5);
+
+            PAD("");
+            PAD("Average performance: " <<
+                result.RunsPerSecondAverage() << " runs/s");
+            PAD_DEVIATION("Best performance: ",
+                          result.RunsPerSecondMaximum(),
+                          result.RunsPerSecondAverage(),
+                          "runs/s");
+            PAD_DEVIATION("Worst performance: ",
+                          result.RunsPerSecondMinimum(),
+                          result.RunsPerSecondAverage(),
+                          "runs/s");
+            PAD("Median performance: " <<
+                result.RunsPerSecondMedian() << " runs/s (" <<
+                Console::TextCyan << "1st quartile: " <<
+                result.RunsPerSecondQuartile1() << " | 3rd quartile: " <<
+                result.RunsPerSecondQuartile3() <<
+                Console::TextDefault << ")");
+
+            PAD("");
+            _stream << Console::TextBlue << "[ITERATIONS] "
+                    << Console::TextDefault
+                    << std::setprecision(3)
+                    << "       Average time: "
+                    << result.IterationTimeAverage() / 1000.0 << " us "
+                    << "(" << Console::TextBlue << "~"
+                    << result.IterationTimeStdDev() / 1000.0 << " us"
+                    << Console::TextDefault << ")"
+                    << std::endl;
+
+            PAD_DEVIATION_INVERSE("Fastest time: ",
+                                  (result.IterationTimeMinimum() / 1000.0),
+                                  (result.IterationTimeAverage() / 1000.0),
+                                  "us");
+            PAD_DEVIATION_INVERSE("Slowest time: ",
+                                  (result.IterationTimeMaximum() / 1000.0),
+                                  (result.IterationTimeAverage() / 1000.0),
+                                  "us");
+            PAD("Median time: " <<
+                result.IterationTimeMedian() / 1000.0 << " us (" <<
+                Console::TextCyan << "1st quartile: " <<
+                result.IterationTimeQuartile1() / 1000.0 <<
+                " us | 3rd quartile: " <<
+                result.IterationTimeQuartile3() / 1000.0 << " us" <<
+                Console::TextDefault << ")");
+
+            _stream << std::setprecision(5);
+
+            PAD("");
+            PAD("Average performance: " <<
+                result.IterationsPerSecondAverage() <<
+                " iterations/s");
+            PAD_DEVIATION("Best performance: ",
+                          (result.IterationsPerSecondMaximum()),
+                          (result.IterationsPerSecondAverage()),
+                          "iterations/s");
+            PAD_DEVIATION("Worst performance: ",
+                          (result.IterationsPerSecondMinimum()),
+                          (result.IterationsPerSecondAverage()),
+                          "iterations/s");
+            PAD("Median performance: " <<
+                result.IterationsPerSecondMedian() << " iterations/s (" <<
+                Console::TextCyan << "1st quartile: " <<
+                result.IterationsPerSecondQuartile1() <<
+                " | 3rd quartile: " <<
+                result.IterationsPerSecondQuartile3() <<
+                Console::TextDefault << ")");
+
+#undef PAD_DEVIATION_INVERSE
+#undef PAD_DEVIATION
+#undef PAD
+        }
+
+
+        std::ostream& _stream;
+    };
+}
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_default_test_factory.hpp b/deps/inja/third_party/include/hayai/hayai_default_test_factory.hpp
new file mode 100755
index 0000000..34f66ac
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_default_test_factory.hpp
@@ -0,0 +1,27 @@
+#ifndef __HAYAI_DEFAULTTESTFACTORY
+#define __HAYAI_DEFAULTTESTFACTORY
+#include "hayai_test_factory.hpp"
+
+namespace hayai
+{
+    /// Default test factory implementation.
+
+    /// Simply constructs an instance of a the test of class @ref T with no
+    /// constructor parameters.
+    ///
+    /// @tparam T Test class.
+    template<class T>
+    class TestFactoryDefault
+        :   public TestFactory
+    {
+    public:
+        /// Create a test instance with no constructor parameters.
+
+        /// @returns a pointer to an initialized test.
+        virtual Test* CreateTest()
+        {
+            return new T();
+        }
+    };
+}
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_fixture.hpp b/deps/inja/third_party/include/hayai/hayai_fixture.hpp
new file mode 100755
index 0000000..315c234
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_fixture.hpp
@@ -0,0 +1,9 @@
+#ifndef __HAYAI_FIXTURE
+#define __HAYAI_FIXTURE
+#include "hayai_test.hpp"
+
+namespace hayai
+{
+    typedef Test Fixture;
+}
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_json_outputter.hpp b/deps/inja/third_party/include/hayai/hayai_json_outputter.hpp
new file mode 100755
index 0000000..0f172a5
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_json_outputter.hpp
@@ -0,0 +1,355 @@
+#ifndef __HAYAI_JSONOUTPUTTER
+#define __HAYAI_JSONOUTPUTTER
+#include <iomanip>
+#include <ostream>
+
+#include "hayai_outputter.hpp"
+
+
+#define JSON_OBJECT_BEGIN "{"
+#define JSON_OBJECT_END "}"
+#define JSON_ARRAY_BEGIN "["
+#define JSON_ARRAY_END "]"
+#define JSON_STRING_BEGIN "\""
+#define JSON_STRING_END "\""
+#define JSON_NAME_SEPARATOR ":"
+#define JSON_VALUE_SEPARATOR ","
+#define JSON_TRUE "true"
+#define JSON_FALSE "false"
+
+namespace hayai
+{
+    /// JSON outputter.
+
+    /// Outputs the result of benchmarks in JSON format with the following
+    /// structure:
+    ///
+    /// {
+    ///     "format_version": 1,
+    ///     "benchmarks": [{
+    ///         "fixture": "DeliveryMan",
+    ///         "name": "DeliverPackage",
+    ///         "parameters": {
+    ///             "declaration": "std::size_t distance",
+    ///             "value": "1"
+    ///         },
+    ///         "iterations_per_run": 10,
+    ///         "disabled": false,
+    ///         "runs": [{
+    ///             "duration": 3801.889831
+    ///         }, ..]
+    ///     }, {
+    ///         "fixture": "DeliveryMan",
+    ///         "name": "DisabledTest",
+    ///         "iterations_per_run": 10,
+    ///         "disabled": true
+    ///     }, ..]
+    /// }
+    ///
+    /// All durations are represented as milliseconds.
+    class JsonOutputter
+        :   public Outputter
+    {
+    public:
+        /// Initialize JSON outputter.
+
+        /// @param stream Output stream. Must exist for the entire duration of
+        /// the outputter's use.
+        JsonOutputter(std::ostream& stream)
+            :   _stream(stream),
+                _firstTest(true)
+        {
+
+        }
+
+
+        virtual void Begin(const std::size_t& enabledCount,
+                           const std::size_t& disabledCount)
+        {
+            (void)enabledCount;
+            (void)disabledCount;
+
+            _stream <<
+                JSON_OBJECT_BEGIN
+
+                JSON_STRING_BEGIN "format_version" JSON_STRING_END
+                JSON_NAME_SEPARATOR
+                "1"
+
+                JSON_VALUE_SEPARATOR
+
+                JSON_STRING_BEGIN "benchmarks" JSON_STRING_END
+                JSON_NAME_SEPARATOR
+                JSON_ARRAY_BEGIN;
+        }
+
+
+        virtual void End(const std::size_t& executedCount,
+                         const std::size_t& disabledCount)
+        {
+            (void)executedCount;
+            (void)disabledCount;
+
+            _stream <<
+                JSON_ARRAY_END
+                JSON_OBJECT_END;
+        }
+
+
+        virtual void BeginTest(const std::string& fixtureName,
+                               const std::string& testName,
+                               const TestParametersDescriptor& parameters,
+                               const std::size_t& runsCount,
+                               const std::size_t& iterationsCount)
+        {
+            BeginTestObject(fixtureName,
+                            testName,
+                            parameters,
+                            runsCount,
+                            iterationsCount,
+                            false);
+        }
+
+
+        virtual void SkipDisabledTest(const std::string& fixtureName,
+                                      const std::string& testName,
+                                      const TestParametersDescriptor& parameters,
+                                      const std::size_t& runsCount,
+                                      const std::size_t& iterationsCount)
+        {
+            BeginTestObject(fixtureName,
+                            testName,
+                            parameters,
+                            runsCount,
+                            iterationsCount,
+                            true);
+            EndTestObject();
+        }
+
+
+        virtual void EndTest(const std::string& fixtureName,
+                             const std::string& testName,
+                             const TestParametersDescriptor& parameters,
+                             const TestResult& result)
+        {
+            (void)fixtureName;
+            (void)testName;
+            (void)parameters;
+
+            _stream <<
+                JSON_VALUE_SEPARATOR
+
+                JSON_STRING_BEGIN "runs" JSON_STRING_END
+                JSON_NAME_SEPARATOR
+                JSON_ARRAY_BEGIN;
+
+            const std::vector<uint64_t>& runTimes = result.RunTimes();
+
+            for (std::vector<uint64_t>::const_iterator it = runTimes.begin();
+                 it != runTimes.end();
+                 ++it)
+            {
+                if (it != runTimes.begin())
+                    _stream << JSON_VALUE_SEPARATOR;
+
+                _stream << JSON_OBJECT_BEGIN
+                           JSON_STRING_BEGIN "duration" JSON_STRING_END
+                           JSON_NAME_SEPARATOR
+                        << std::fixed
+                        << std::setprecision(6)
+                        << (double(*it) / 1000000.0)
+                        << JSON_OBJECT_END;
+            }
+
+            _stream <<
+                JSON_ARRAY_END;
+
+            WriteDoubleProperty("mean", result.RunTimeAverage());
+            WriteDoubleProperty("std_dev", result.RunTimeStdDev());
+            WriteDoubleProperty("median", result.RunTimeMedian());
+            WriteDoubleProperty("quartile_1", result.RunTimeQuartile1());
+            WriteDoubleProperty("quartile_3", result.RunTimeQuartile3());
+
+            EndTestObject();
+        }
+    private:
+        void BeginTestObject(const std::string& fixtureName,
+                             const std::string& testName,
+                             const TestParametersDescriptor& parameters,
+                             const std::size_t& runsCount,
+                             const std::size_t& iterationsCount,
+                             bool disabled)
+        {
+            (void)runsCount;
+
+            if (_firstTest)
+                _firstTest = false;
+            else
+                _stream << JSON_VALUE_SEPARATOR;
+
+            _stream <<
+                JSON_OBJECT_BEGIN
+
+                JSON_STRING_BEGIN "fixture" JSON_STRING_END
+                JSON_NAME_SEPARATOR;
+
+            WriteString(fixtureName);
+
+            _stream <<
+                JSON_VALUE_SEPARATOR
+
+                JSON_STRING_BEGIN "name" JSON_STRING_END
+                JSON_NAME_SEPARATOR;
+
+            WriteString(testName);
+
+            _stream <<
+                JSON_VALUE_SEPARATOR;
+
+            const std::vector<TestParameterDescriptor>& descs =
+                parameters.Parameters();
+
+            if (!descs.empty())
+            {
+                _stream <<
+                    JSON_STRING_BEGIN "parameters" JSON_STRING_END
+                    JSON_NAME_SEPARATOR
+                    JSON_ARRAY_BEGIN;
+
+                for (std::size_t i = 0; i < descs.size(); ++i)
+                {
+                    if (i)
+                        _stream << JSON_VALUE_SEPARATOR;
+
+                    const TestParameterDescriptor& desc = descs[i];
+
+                    _stream <<
+                        JSON_OBJECT_BEGIN
+
+                        JSON_STRING_BEGIN "declaration" JSON_STRING_END
+                        JSON_NAME_SEPARATOR;
+
+                    WriteString(desc.Declaration);
+
+                    _stream <<
+                        JSON_VALUE_SEPARATOR
+
+                        JSON_STRING_BEGIN "value" JSON_STRING_END
+                        JSON_NAME_SEPARATOR;
+
+                    WriteString(desc.Value);
+
+                    _stream <<
+                        JSON_OBJECT_END;
+                }
+
+                _stream <<
+                    JSON_ARRAY_END
+                    JSON_VALUE_SEPARATOR;
+            }
+
+            _stream <<
+                JSON_STRING_BEGIN "iterations_per_run" JSON_STRING_END
+                JSON_NAME_SEPARATOR << iterationsCount <<
+
+                JSON_VALUE_SEPARATOR
+
+                JSON_STRING_BEGIN "disabled" JSON_STRING_END
+                JSON_NAME_SEPARATOR << (disabled ? JSON_TRUE : JSON_FALSE);
+        }
+
+
+        inline void EndTestObject()
+        {
+            _stream <<
+                JSON_OBJECT_END;
+        }
+
+
+        /// Write an escaped string.
+
+        /// The escaping is currently very rudimentary and assumes that names,
+        /// parameters etc. are ASCII.
+        ///
+        /// @param str String to write.
+        void WriteString(const std::string& str)
+        {
+            _stream << JSON_STRING_BEGIN;
+
+            std::string::const_iterator it = str.begin();
+            while (it != str.end())
+            {
+                char c = *it++;
+
+                switch (c)
+                {
+                case '\\':
+                case '"':
+                case '/':
+                    _stream << "\\" << c;
+                    break;
+
+                case '\b':
+                    _stream << "\\b";
+                    break;
+
+                case '\f':
+                    _stream << "\\f";
+                    break;
+
+                case '\n':
+                    _stream << "\\n";
+                    break;
+
+                case '\r':
+                    _stream << "\\r";
+                    break;
+
+                case '\t':
+                    _stream << "\\t";
+                    break;
+
+                default:
+                    _stream << c;
+                    break;
+                }
+            }
+
+            _stream << JSON_STRING_END;
+        }
+
+
+        /// Write a property with a double value.
+
+        /// @param key Property key.
+        /// @param value Property value.
+        void WriteDoubleProperty(const std::string& key, const double value)
+        {
+            _stream << JSON_VALUE_SEPARATOR
+                    << JSON_STRING_BEGIN
+                    << key
+                    << JSON_STRING_END
+                    << JSON_NAME_SEPARATOR
+                    << std::fixed
+                    << std::setprecision(6)
+                    << (value / 1000000.0);
+        }
+
+
+        std::ostream& _stream;
+        bool _firstTest;
+    };
+}
+
+#undef JSON_OBJECT_BEGIN
+#undef JSON_OBJECT_END
+#undef JSON_ARRAY_BEGIN
+#undef JSON_ARRAY_END
+#undef JSON_STRING_BEGIN
+#undef JSON_STRING_END
+#undef JSON_NAME_SEPARATOR
+#undef JSON_VALUE_SEPARATOR
+#undef JSON_TRUE
+#undef JSON_FALSE
+
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_junit_xml_outputter.hpp b/deps/inja/third_party/include/hayai/hayai_junit_xml_outputter.hpp
new file mode 100755
index 0000000..e7e1164
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_junit_xml_outputter.hpp
@@ -0,0 +1,260 @@
+#ifndef __HAYAI_JUNITXMLOUTPUTTER
+#define __HAYAI_JUNITXMLOUTPUTTER
+#include <iomanip>
+#include <ostream>
+#include <vector>
+#include <sstream>
+#include <map>
+
+#include "hayai_outputter.hpp"
+
+
+namespace hayai
+{
+    /// JUnit-compatible XML outputter.
+    class JUnitXmlOutputter
+        :   public Outputter
+    {
+    private:
+        /// Test case.
+        class TestCase
+        {
+        public:
+            TestCase(const std::string& fixtureName,
+                     const std::string& testName,
+                     const TestParametersDescriptor& parameters,
+                     const TestResult* result)
+            {
+                // Derive a pretty name.
+                std::stringstream nameStream;
+                WriteTestNameToStream(nameStream,
+                                      fixtureName,
+                                      testName,
+                                      parameters);
+                Name = nameStream.str();
+
+                // Derive the result.
+                Skipped = !result;
+
+                if (result)
+                {
+                    std::stringstream timeStream;
+                    timeStream << std::fixed
+                               << std::setprecision(9)
+                               << (result->IterationTimeAverage() / 1e9);
+                    Time = timeStream.str();
+                }
+            }
+
+
+            std::string Name;
+            std::string Time;
+            bool Skipped;
+        };
+
+
+        /// Test suite map.
+        typedef std::map<std::string, std::vector<TestCase> > TestSuiteMap;
+    public:
+        /// Initialize outputter.
+
+        /// @param stream Output stream. Must exist for the entire duration of
+        /// the outputter's use.
+        JUnitXmlOutputter(std::ostream& stream)
+            :   _stream(stream)
+        {
+
+        }
+
+
+        virtual void Begin(const std::size_t& enabledCount,
+                           const std::size_t& disabledCount)
+        {
+            (void)enabledCount;
+            (void)disabledCount;
+        }
+
+
+        virtual void End(const std::size_t& executedCount,
+                         const std::size_t& disabledCount)
+        {
+            (void)executedCount;
+            (void)disabledCount;
+
+            // Write the header.
+            _stream << "<?xml version=\"1.0\" encoding=\"UTF-8\"?>"
+                    << std::endl
+                    << "<testsuites>" << std::endl;
+
+            // Write out each test suite (fixture.)
+            for (TestSuiteMap::iterator testSuiteIt = _testSuites.begin();
+                 testSuiteIt != _testSuites.end();
+                 ++testSuiteIt)
+            {
+                _stream << "    <testsuite name=\"" << testSuiteIt->first
+                        << "\" tests=\"" << testSuiteIt->second.size() << "\">"
+                        << std::endl;
+
+                // Write out each test case.
+                for (std::vector<TestCase>::iterator testCaseIt =
+                         testSuiteIt->second.begin();
+                     testCaseIt != testSuiteIt->second.end();
+                     ++testCaseIt)
+                {
+                    _stream << "        <testcase name=\"";
+                    WriteEscapedString(testCaseIt->Name);
+                    _stream << "\"";
+
+                    if (!testCaseIt->Skipped)
+                        _stream << " time=\"" << testCaseIt->Time << "\" />"
+                                << std::endl;
+                    else
+                    {
+                        _stream << ">" << std::endl
+                                << "            <skipped />" << std::endl
+                                << "        </testcase>" << std::endl;
+                    }
+                }
+                
+                _stream << "    </testsuite>" << std::endl;
+            }
+
+            _stream << "</testsuites>" << std::endl;
+        }
+
+
+        virtual void BeginTest(const std::string& fixtureName,
+                               const std::string& testName,
+                               const TestParametersDescriptor& parameters,
+                               const std::size_t& runsCount,
+                               const std::size_t& iterationsCount)
+        {
+            (void)fixtureName;
+            (void)testName;
+            (void)parameters;
+            (void)runsCount;
+            (void)iterationsCount;
+        }
+
+
+        virtual void SkipDisabledTest(const std::string& fixtureName,
+                                      const std::string& testName,
+                                      const TestParametersDescriptor& parameters,
+                                      const std::size_t& runsCount,
+                                      const std::size_t& iterationsCount)
+        {
+            (void)fixtureName;
+            (void)testName;
+            (void)parameters;
+            (void)runsCount;
+            (void)iterationsCount;
+        }
+
+
+        virtual void EndTest(const std::string& fixtureName,
+                             const std::string& testName,
+                             const TestParametersDescriptor& parameters,
+                             const TestResult& result)
+        {
+            (void)fixtureName;
+            (void)testName;
+            (void)parameters;
+
+            TestSuiteMap::iterator fixtureIt =
+                _testSuites.find(fixtureName);
+            if (fixtureIt == _testSuites.end())
+            {
+                _testSuites[fixtureName] = std::vector<TestCase>();
+                fixtureIt = _testSuites.find(fixtureName);
+            }
+
+            std::vector<TestCase>& testCases = fixtureIt->second;
+
+            testCases.push_back(TestCase(fixtureName,
+                                         testName,
+                                         parameters,
+                                         &result));
+
+            /*
+            _stream <<
+                JSON_VALUE_SEPARATOR
+
+                JSON_STRING_BEGIN "runs" JSON_STRING_END
+                JSON_NAME_SEPARATOR
+                JSON_ARRAY_BEGIN;
+
+            const std::vector<uint64_t>& runTimes = result.RunTimes();
+
+            for (std::vector<uint64_t>::const_iterator it = runTimes.begin();
+                 it != runTimes.end();
+                 ++it)
+            {
+                if (it != runTimes.begin())
+                    _stream << JSON_VALUE_SEPARATOR;
+
+                _stream << JSON_OBJECT_BEGIN
+
+                           JSON_STRING_BEGIN "duration" JSON_STRING_END
+                           JSON_NAME_SEPARATOR
+                        << std::fixed
+                        << std::setprecision(6)
+                        << (double(*it) / 1000000.0)
+                        << JSON_OBJECT_END;
+            }
+
+            _stream <<
+                JSON_ARRAY_END;
+
+            EndTestObject();
+            */
+        }
+    private:
+        /// Write an escaped string.
+
+        /// The escaping is currently very rudimentary and assumes that names,
+        /// parameters etc. are ASCII.
+        ///
+        /// @param str String to write.
+        void WriteEscapedString(const std::string& str)
+        {
+            std::string::const_iterator it = str.begin();
+            while (it != str.end())
+            {
+                char c = *it++;
+
+                switch (c)
+                {
+                case '"':
+                    _stream << "&quot;";
+                    break;
+
+                case '\'':
+                    _stream << "&apos;";
+                    break;
+
+                case '<':
+                    _stream << "&lt;";
+                    break;
+
+                case '>':
+                    _stream << "&gt;";
+                    break;
+
+                case '&':
+                    _stream << "&amp;";
+                    break;
+
+                default:
+                    _stream << c;
+                    break;
+                }
+            }
+        }
+
+
+        std::ostream& _stream;
+        TestSuiteMap _testSuites;
+    };
+}
+
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_main.hpp b/deps/inja/third_party/include/hayai/hayai_main.hpp
new file mode 100755
index 0000000..d6d7cd3
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_main.hpp
@@ -0,0 +1,530 @@
+#ifndef __HAYAI_MAIN
+#define __HAYAI_MAIN
+#include <algorithm>
+#include <cstdlib>
+#include <cstring>
+#include <ctime>
+#include <errno.h>
+#include <fstream>
+#include <set>
+#include <vector>
+
+#include "hayai.hpp"
+
+
+#if defined(_WIN32)
+#    define PATH_SEPARATOR '\\'
+#else
+#    define PATH_SEPARATOR '/'
+#endif
+
+
+#define HAYAI_MAIN_FORMAT_FLAG(_desc)                                   \
+    ::hayai::Console::TextGreen << _desc << ::hayai::Console::TextDefault
+#define HAYAI_MAIN_FORMAT_ARGUMENT(_desc)                               \
+    ::hayai::Console::TextYellow << _desc << ::hayai::Console::TextDefault
+#define HAYAI_MAIN_FORMAT_ERROR(_desc)                                  \
+    ::hayai::Console::TextRed << "Error:" <<                            \
+        ::hayai::Console::TextDefault << " " << _desc
+#define HAYAI_MAIN_USAGE_ERROR(_desc)                                   \
+    {                                                                   \
+        std::cerr << HAYAI_MAIN_FORMAT_ERROR(_desc) << std::endl        \
+                  << std::endl;                                         \
+        ShowUsage(argv[0]);                                             \
+        return EXIT_FAILURE;                                            \
+    }
+
+
+namespace hayai
+{
+    /// Execution mode.
+    enum MainExecutionMode
+    {
+        /// Run benchmarks.
+        MainRunBenchmarks,
+
+
+        /// List benchmarks but do not execute them.
+        MainListBenchmarks
+    };
+
+
+    /// File outputter.
+    class FileOutputter
+    {
+    public:
+        /// File outputter.
+
+        /// @param path Output path. Expected to be available during the life
+        /// time of the outputter.
+        FileOutputter(const char* path)
+            :   _path(path),
+                _outputter(NULL)
+        {
+
+        }
+
+
+        virtual ~FileOutputter()
+        {
+            if (_outputter)
+                delete _outputter;
+
+            _stream.close();
+        }
+
+
+        /// Set up.
+
+        /// Opens the output file for writing and initializes the outputter.
+        virtual void SetUp()
+        {
+            _stream.open(_path,
+                         std::ios_base::out |
+                         std::ios_base::trunc |
+                         std::ios_base::binary);
+            if (_stream.bad())
+            {
+                std::stringstream error;
+                error << "failed to open " << _path << " for writing: "
+                      << strerror(errno);
+                throw std::runtime_error(error.str());
+            }
+
+            _outputter = CreateOutputter(_stream);
+        }
+
+
+        /// Outputter.
+        virtual ::hayai::Outputter& Outputter()
+        {
+            if (!_outputter)
+                throw std::runtime_error("outputter has not been set up");
+
+            return *_outputter;
+        }
+    protected:
+        /// Create outputter from output stream.
+
+        /// @param stream Output stream for the outputter.
+        /// @returns the outputter for the given format.
+        virtual ::hayai::Outputter* CreateOutputter(std::ostream& stream) = 0;
+    private:
+        const char* _path;
+        std::ofstream _stream;
+        ::hayai::Outputter* _outputter;
+    };
+
+
+#define FILE_OUTPUTTER_IMPLEMENTATION(_prefix)                          \
+    class _prefix ## FileOutputter                                      \
+        :   public FileOutputter                                        \
+    {                                                                   \
+    public:                                                             \
+        _prefix ## FileOutputter(const char* path)                      \
+            :   FileOutputter(path)                                     \
+        {}                                                              \
+    protected:                                                          \
+        virtual ::hayai::Outputter* CreateOutputter(std::ostream& stream) \
+        {                                                               \
+            return new ::hayai::_prefix ## Outputter(stream);           \
+        }                                                               \
+    }
+
+
+    FILE_OUTPUTTER_IMPLEMENTATION(Json);
+    FILE_OUTPUTTER_IMPLEMENTATION(Console);
+    FILE_OUTPUTTER_IMPLEMENTATION(JUnitXml);
+
+#undef FILE_OUTPUTTER_IMPLEMENTATION
+
+
+    /// Default main executable runner for Hayai.
+    class MainRunner
+    {
+    public:
+        MainRunner()
+            :   ExecutionMode(MainRunBenchmarks),
+                ShuffleBenchmarks(false),
+                StdoutOutputter(NULL)
+        {
+
+        }
+
+
+        ~MainRunner()
+        {
+            // Clean up the outputters.
+            for (std::vector<FileOutputter*>::iterator it =
+                     FileOutputters.begin();
+                 it != FileOutputters.end();
+                 ++it)
+                delete *it;
+
+            if (StdoutOutputter)
+                delete StdoutOutputter;
+        }
+
+
+        /// Execution mode.
+        MainExecutionMode ExecutionMode;
+
+
+        /// Shuffle benchmarks.
+        bool ShuffleBenchmarks;
+
+
+        /// File outputters.
+        ///
+        /// Outputter will be freed by the class on destruction.
+        std::vector<FileOutputter*> FileOutputters;
+
+
+        /// Standard output outputter.
+        ///
+        /// Will be freed by the class on destruction.
+        Outputter* StdoutOutputter;
+
+
+        /// Parse arguments.
+
+        /// @param argc Argument count including the executable name.
+        /// @param argv Arguments.
+        /// @param residualArgs Pointer to vector to hold residual arguments
+        /// after parsing. If not NULL, the parser will not fail upon
+        /// encounting an unknown argument but will instead add it to the list
+        /// of residual arguments and return a success code. Note: the parser
+        /// will still fail if an invalid value is provided to a known
+        /// argument.
+        /// @returns 0 on success, otherwise the exit status code to be
+        /// returned from the executable.
+        int ParseArgs(int argc,
+                      char** argv,
+                      std::vector<char*>* residualArgs = NULL)
+        {
+            int argI = 1;
+            while (argI < argc)
+            {
+                char* arg = argv[argI++];
+                bool argLast = (argI == argc);
+                std::size_t argLen = strlen(arg);
+
+                if (argLen == 0)
+                    continue;
+
+                // List flag.
+                if ((!strcmp(arg, "-l")) || (!strcmp(arg, "--list")))
+                    ExecutionMode = ::hayai::MainListBenchmarks;
+                // Shuffle flag.
+                else if ((!strcmp(arg, "-s")) || (!strcmp(arg, "--shuffle")))
+                    ShuffleBenchmarks = true;
+                // Filter flag.
+                else if ((!strcmp(arg, "-f")) || (!strcmp(arg, "--filter")))
+                {
+                    if ((argLast) || (*argv[argI] == 0))
+                        HAYAI_MAIN_USAGE_ERROR(HAYAI_MAIN_FORMAT_FLAG(arg) <<
+                                    " requires a pattern to be specified");
+                    char* pattern = argv[argI++];
+
+                    ::hayai::Benchmarker::ApplyPatternFilter(pattern);
+                }
+                // Output flag.
+                else if ((!strcmp(arg, "-o")) || (!strcmp(arg, "--output")))
+                {
+                    if (argLast)
+                        HAYAI_MAIN_USAGE_ERROR(HAYAI_MAIN_FORMAT_FLAG(arg) <<
+                                    " requires a format to be specified");
+                    char* formatSpecifier = argv[argI++];
+
+                    char* format = formatSpecifier;
+                    char* path = strchr(formatSpecifier, ':');
+                    if (path)
+                    {
+                        *(path++) = 0;
+                        if (!strlen(path))
+                            path = NULL;
+                    }
+
+#define ADD_OUTPUTTER(_prefix)                                          \
+                    {                                                   \
+                        if (path)                                       \
+                            FileOutputters.push_back(                   \
+                                new ::hayai::_prefix ## FileOutputter(path) \
+                            );                                          \
+                        else                                            \
+                        {                                               \
+                            if (StdoutOutputter)                        \
+                                delete StdoutOutputter;                 \
+                            StdoutOutputter =                           \
+                                new ::hayai::_prefix ## Outputter(std::cout); \
+                        }                                               \
+                    }
+
+                    if (!strcmp(format, "console"))
+                        ADD_OUTPUTTER(Console)
+                    else if (!strcmp(format, "json"))
+                        ADD_OUTPUTTER(Json)
+                    else if (!strcmp(format, "junit"))
+                        ADD_OUTPUTTER(JUnitXml)
+                    else
+                        HAYAI_MAIN_USAGE_ERROR("invalid format: " << format);
+
+#undef ADD_OUTPUTTER
+                }
+                // Console coloring flag.
+                else if ((!strcmp(arg, "-c")) || (!strcmp(arg, "--color")))
+                {
+                    if (argLast)
+                        HAYAI_MAIN_USAGE_ERROR(
+                            HAYAI_MAIN_FORMAT_FLAG(arg) <<
+                            " requires an argument " <<
+                            "of either " << HAYAI_MAIN_FORMAT_FLAG("yes") <<
+                            " or " << HAYAI_MAIN_FORMAT_FLAG("no")
+                        );
+
+                    char* choice = argv[argI++];
+                    bool enabled;
+
+                    if ((!strcmp(choice, "yes")) ||
+                        (!strcmp(choice, "true")) ||
+                        (!strcmp(choice, "on")) ||
+                        (!strcmp(choice, "1")))
+                        enabled = true;
+                    else if ((!strcmp(choice, "no")) ||
+                             (!strcmp(choice, "false")) ||
+                             (!strcmp(choice, "off")) ||
+                             (!strcmp(choice, "0")))
+                        enabled = false;
+                    else
+                        HAYAI_MAIN_USAGE_ERROR(
+                            "invalid argument to " <<
+                            HAYAI_MAIN_FORMAT_FLAG(arg) <<
+                            ": " << choice
+                        );
+
+                    ::hayai::Console::SetFormattingEnabled(enabled);
+                }
+                // Help.
+                else if ((!strcmp(arg, "-?")) ||
+                         (!strcmp(arg, "-h")) ||
+                         (!strcmp(arg, "--help")))
+                {
+                    ShowUsage(argv[0]);
+                    return EXIT_FAILURE;
+                }
+                else if (residualArgs)
+                {
+                    residualArgs->push_back(arg);
+                }
+                else
+                {
+                    HAYAI_MAIN_USAGE_ERROR("unknown option: " << arg);
+                }
+            }
+
+            return EXIT_SUCCESS;
+        }
+
+
+        /// Run the selected execution mode.
+
+        /// @returns the exit status code to be returned from the executable.
+        int Run()
+        {
+            // Execute based on the selected mode.
+            switch (ExecutionMode)
+            {
+            case ::hayai::MainRunBenchmarks:
+                return RunBenchmarks();
+
+            case ::hayai::MainListBenchmarks:
+                return ListBenchmarks();
+
+            default:
+                std::cerr << HAYAI_MAIN_FORMAT_ERROR(
+                    "invalid execution mode: " << ExecutionMode
+                ) << std::endl;
+                return EXIT_FAILURE;
+            }
+        }
+    private:
+        /// Run benchmarks.
+
+        /// @returns the exit status code to be returned from the executable.
+        int RunBenchmarks()
+        {
+            // Hook up the outputs.
+            if (StdoutOutputter)
+                ::hayai::Benchmarker::AddOutputter(*StdoutOutputter);
+
+            for (std::vector< ::hayai::FileOutputter*>::iterator it =
+                     FileOutputters.begin();
+                 it < FileOutputters.end();
+                 ++it)
+            {
+                ::hayai::FileOutputter& fileOutputter = **it;
+
+                try
+                {
+                    fileOutputter.SetUp();
+                }
+                catch (std::exception& e)
+                {
+                    std::cerr << HAYAI_MAIN_FORMAT_ERROR(e.what()) << std::endl;
+                    return EXIT_FAILURE;
+                }
+
+                ::hayai::Benchmarker::AddOutputter(fileOutputter.Outputter());
+            }
+
+            // Run the benchmarks.
+            if (ShuffleBenchmarks)
+            {
+                std::srand(static_cast<unsigned>(std::time(0)));
+                ::hayai::Benchmarker::ShuffleTests();
+            }
+
+            ::hayai::Benchmarker::RunAllTests();
+
+            return EXIT_SUCCESS;
+        }
+
+
+        /// List benchmarks.
+
+        /// @returns the exit status code to be returned from the executable.
+        int ListBenchmarks()
+        {
+            // List out the unique benchmark names.
+            std::vector<const ::hayai::TestDescriptor*> tests =
+                ::hayai::Benchmarker::ListTests();
+            std::vector<std::string> testNames;
+            std::set<std::string> uniqueTestNames;
+
+            for (std::vector<const ::hayai::TestDescriptor*>::iterator it =
+                     tests.begin();
+                 it < tests.end();
+                 ++it)
+            {
+                if (uniqueTestNames.find((*it)->CanonicalName) !=
+                    uniqueTestNames.end())
+                    continue;
+
+                testNames.push_back((*it)->CanonicalName);
+                uniqueTestNames.insert((*it)->CanonicalName);
+            }
+
+            // Sort the benchmark names.
+            std::sort(testNames.begin(), testNames.end());
+
+            // Dump the list.
+            for (std::vector<std::string>::iterator it = testNames.begin();
+                 it < testNames.end();
+                 ++it)
+                std::cout << *it << std::endl;
+
+            return EXIT_SUCCESS;
+        }
+
+
+        /// Show usage.
+
+        /// @param execName Executable name.
+        void ShowUsage(const char* execName)
+        {
+            const char* baseName = strrchr(execName, PATH_SEPARATOR);
+
+            std::cerr << "Usage: " << (baseName ? baseName + 1 : execName)
+                      << " " << HAYAI_MAIN_FORMAT_FLAG("[OPTIONS]") << std::endl
+                      << std::endl
+
+                      << "  Runs the benchmarks for this project." << std::endl
+                      << std::endl
+
+                      << "Benchmark selection options:" << std::endl
+                      << "  " << HAYAI_MAIN_FORMAT_FLAG("-l") << ", "
+                      << HAYAI_MAIN_FORMAT_FLAG("--list")
+                      << std::endl
+                      << "    List the names of all benchmarks instead of "
+                      << "running them." << std::endl
+                      << "  " << HAYAI_MAIN_FORMAT_FLAG("-f") << ", "
+                      << HAYAI_MAIN_FORMAT_FLAG("--filter")
+                      << " <" << HAYAI_MAIN_FORMAT_ARGUMENT("pattern") << ">"
+                      << std::endl
+                      << "    Run only the tests whose name matches one of the "
+                      << "positive patterns but" << std::endl
+                      << "    none of the negative patterns. '?' matches any "
+                      << "single character; '*'" << std::endl
+                      << "    matches any substring; ':' separates two "
+                      << "patterns."
+                      << std::endl
+
+                      << "Benchmark execution options:" << std::endl
+                      << "  " << HAYAI_MAIN_FORMAT_FLAG("-s") << ", "
+                      << HAYAI_MAIN_FORMAT_FLAG("--shuffle")
+                      << std::endl
+                      << "    Randomize benchmark execution order."
+                      << std::endl
+                      << std::endl
+
+                      << "Benchmark output options:" << std::endl
+                      << "  " << HAYAI_MAIN_FORMAT_FLAG("-o") << ", "
+                      << HAYAI_MAIN_FORMAT_FLAG("--output")
+                      << " <" << HAYAI_MAIN_FORMAT_ARGUMENT("format") << ">[:"
+                      << HAYAI_MAIN_FORMAT_ARGUMENT("<path>") << "]"
+                      << std::endl
+                      << "    Output results in a specific format. If no "
+                      << "path is specified, the output" << std::endl
+                      << "    will be presented on stdout. Can be specified "
+                      << "multiple times to get output" << std::endl
+                      << "    in different formats. The supported formats are:"
+                      << std::endl
+                      << std::endl
+                      << "    " << HAYAI_MAIN_FORMAT_ARGUMENT("console")
+                      << std::endl
+                      << "      Standard console output." << std::endl
+                      << "    " << HAYAI_MAIN_FORMAT_ARGUMENT("json")
+                      << std::endl
+                      << "      JSON." << std::endl
+                      << "    " << HAYAI_MAIN_FORMAT_ARGUMENT("junit")
+                      << std::endl
+                      << "      JUnit-compatible XML (very restrictive.)"
+                      << std::endl
+                      << std::endl
+                      << "    If multiple output formats are provided without "
+                      << "a path, only the last" << std::endl
+                      << "    provided format will be output to stdout."
+                      << std::endl
+                      << "  " << HAYAI_MAIN_FORMAT_FLAG("--c") << ", "
+                      << HAYAI_MAIN_FORMAT_FLAG("--color") << " ("
+                      << ::hayai::Console::TextGreen << "yes"
+                      << ::hayai::Console::TextDefault << "|"
+                      << ::hayai::Console::TextGreen << "no"
+                      << ::hayai::Console::TextDefault << ")" << std::endl
+                      << "    Enable colored output when available. Default "
+                      << ::hayai::Console::TextGreen << "yes"
+                      << ::hayai::Console::TextDefault << "." << std::endl
+                      << std::endl
+
+                      << "Miscellaneous options:" << std::endl
+                      << "  " << HAYAI_MAIN_FORMAT_FLAG("-?") << ", "
+                      << HAYAI_MAIN_FORMAT_FLAG("-h") << ", "
+                      << HAYAI_MAIN_FORMAT_FLAG("--help") << std::endl
+                      << "    Show this help information." << std::endl
+                      << std::endl
+
+                      << "hayai version: " << HAYAI_VERSION << std::endl
+                      << "Clock implementation: "
+                      << ::hayai::Clock::Description()
+                      << std::endl;
+        }
+    };
+}
+
+
+#undef HAYAI_MAIN_FORMAT_FLAG
+#undef HAYAI_MAIN_FORMAT_ARGUMENT
+#undef HAYAI_MAIN_FORMAT_ERROR
+#undef HAYAI_MAIN_USAGE_ERROR
+
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_outputter.hpp b/deps/inja/third_party/include/hayai/hayai_outputter.hpp
new file mode 100755
index 0000000..94055b2
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_outputter.hpp
@@ -0,0 +1,113 @@
+#ifndef __HAYAI_OUTPUTTER
+#define __HAYAI_OUTPUTTER
+#include <iostream>
+#include <cstddef>
+
+#include "hayai_test_result.hpp"
+
+
+namespace hayai
+{
+    /// Outputter.
+
+    /// Abstract base class for outputters.
+    class Outputter
+    {
+    public:
+        /// Begin benchmarking.
+
+        /// The total number of benchmarks registred is the sum of the two
+        /// counts passed to the outputter.
+        ///
+        /// @param enabledCount Number of benchmarks to be executed.
+        /// @param disabledCount Number of disabled benchmarks to be skipped.
+        virtual void Begin(const std::size_t& enabledCount,
+                           const std::size_t& disabledCount) = 0;
+
+
+        /// End benchmarking.
+
+        /// @param executedCount Number of benchmarks that have been executed.
+        /// @param disabledCount Number of benchmarks that have been skipped
+        /// because they are disabled.
+        virtual void End(const std::size_t& executedCount,
+                         const std::size_t& disabledCount) = 0;
+
+
+        /// Begin benchmark test run.
+
+        /// @param fixtureName Fixture name.
+        /// @param testName Test name.
+        /// @param parameters Test parameter description.
+        /// @param runsCount Number of runs to be executed.
+        /// @param iterationsCount Number of iterations per run.
+        virtual void BeginTest(const std::string& fixtureName,
+                               const std::string& testName,
+                               const TestParametersDescriptor& parameters,
+                               const std::size_t& runsCount,
+                               const std::size_t& iterationsCount) = 0;
+
+
+        /// End benchmark test run.
+
+        /// @param fixtureName Fixture name.
+        /// @param testName Test name.
+        /// @param parameters Test parameter description.
+        /// @param result Test result.
+        virtual void EndTest(const std::string& fixtureName,
+                             const std::string& testName,
+                             const TestParametersDescriptor& parameters,
+                             const TestResult& result) = 0;
+
+
+        /// Skip disabled benchmark test run.
+
+        /// @param fixtureName Fixture name.
+        /// @param testName Test name.
+        /// @param parameters Test parameter description.
+        /// @param runsCount Number of runs to be executed.
+        /// @param iterationsCount Number of iterations per run.
+        virtual void SkipDisabledTest(const std::string& fixtureName,
+                                      const std::string& testName,
+                                      const TestParametersDescriptor&
+                                          parameters,
+                                      const std::size_t& runsCount,
+                                      const std::size_t& iterationsCount) = 0;
+
+
+        virtual ~Outputter()
+        {
+
+        }
+    protected:
+        /// Write a nicely formatted test name to a stream.
+        static void WriteTestNameToStream(std::ostream& stream,
+                                          const std::string& fixtureName,
+                                          const std::string& testName,
+                                          const TestParametersDescriptor&
+                                              parameters)
+        {
+            stream << fixtureName << "." << testName;
+
+            const std::vector<TestParameterDescriptor>& descs =
+                parameters.Parameters();
+
+            if (descs.empty())
+                return;
+
+            stream << "(";
+
+            for (std::size_t i = 0; i < descs.size(); ++i)
+            {
+                if (i)
+                    stream << ", ";
+
+                const TestParameterDescriptor& desc = descs[i];
+                stream << desc.Declaration << " = " << desc.Value;
+            }
+
+            stream << ")";
+        }
+    };
+}
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_test.hpp b/deps/inja/third_party/include/hayai/hayai_test.hpp
new file mode 100755
index 0000000..36d25fd
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_test.hpp
@@ -0,0 +1,83 @@
+#ifndef __HAYAI_TEST
+#define __HAYAI_TEST
+#include <cstddef>
+
+#include "hayai_clock.hpp"
+#include "hayai_test_result.hpp"
+
+
+namespace hayai
+{
+    /// Base test class.
+
+    /// @ref SetUp is invoked before each run, and @ref TearDown is invoked
+    /// once the run is finished. Iterations rely on the same fixture
+    /// for every run.
+    ///
+    /// The default test class does not contain any actual code in the
+    /// SetUp and TearDown methods, which means that tests can inherit
+    /// this class directly for non-fixture based benchmarking tests.
+    class Test
+    {
+    public:
+        /// Set up the testing fixture for execution of a run.
+        virtual void SetUp()
+        {
+
+        }
+
+
+        /// Tear down the previously set up testing fixture after the
+        /// execution run.
+        virtual void TearDown()
+        {
+
+        }
+
+
+        /// Run the test.
+
+        /// @param iterations Number of iterations to gather data for.
+        /// @returns the number of nanoseconds the run took.
+        uint64_t Run(std::size_t iterations)
+        {
+            std::size_t iteration = iterations;
+            
+            // Set up the testing fixture.
+            SetUp();
+
+            // Get the starting time.
+            Clock::TimePoint startTime, endTime;
+
+            startTime = Clock::Now();
+
+            // Run the test body for each iteration.
+            while (iteration--)
+                TestBody();
+
+            // Get the ending time.
+            endTime = Clock::Now();
+
+            // Tear down the testing fixture.
+            TearDown();
+
+            // Return the duration in nanoseconds.
+            return Clock::Duration(startTime, endTime);
+        }
+
+
+        virtual ~Test()
+        {
+
+        }
+    protected:
+        /// Test body.
+
+        /// Executed for each iteration the benchmarking test is run.
+        virtual void TestBody()
+        {
+
+        }
+    };
+}
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_test_descriptor.hpp b/deps/inja/third_party/include/hayai/hayai_test_descriptor.hpp
new file mode 100755
index 0000000..529744e
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_test_descriptor.hpp
@@ -0,0 +1,365 @@
+#ifndef __HAYAI_TESTDESCRIPTOR
+#define __HAYAI_TESTDESCRIPTOR
+#include <cstring>
+#include <sstream>
+#include <string>
+#include <vector>
+
+#include "hayai_test.hpp"
+#include "hayai_test_factory.hpp"
+
+
+namespace hayai
+{
+    /// Parameter declaration.
+
+    /// Describes parameter type and name.
+    class TestParameterDescriptor
+    {
+    public:
+        TestParameterDescriptor(std::string declaration,
+                                std::string value)
+            :   Declaration(declaration),
+                Value(value)
+        {
+
+        }
+
+
+        /// Declaration.
+        std::string Declaration;
+
+
+        /// Value.
+        std::string Value;
+    };
+
+
+    /// Test parameters descriptor.
+    class TestParametersDescriptor
+    {
+    private:
+        /// Quoting state.
+        enum QuotingState
+        {
+            /// Unquoted.
+            Unquoted,
+
+
+            /// Single quoted.
+            SingleQuoted,
+
+
+            /// Double quoted.
+            DoubleQuoted
+        };
+
+
+        /// Trimmed string.
+
+        /// @param start Start character.
+        /// @param end Character one position beyond end.
+        inline static std::string TrimmedString(const char* start,
+                                                const char* end)
+        {
+            while (start < end)
+            {
+                if ((*start == ' ') ||
+                    (*start == '\r') ||
+                    (*start == '\n') ||
+                    (*start == '\t'))
+                    ++start;
+                else
+                    break;
+            }
+
+            while (end > start)
+            {
+                const char c = *(end - 1);
+
+                if ((c != ' ') &&
+                    (c != '\r') &&
+                    (c != '\n') &&
+                    (c != '\t'))
+                    break;
+
+                --end;
+            }
+
+            return std::string(start, std::string::size_type(end - start));
+        }
+
+
+        /// Parse comma separated parentherized value.
+
+        /// @param separated Separated values as "(..[, ..])".
+        /// @returns the individual values with white space trimmed.
+        static std::vector<std::string>
+            ParseCommaSeparated(const char* separated)
+        {
+            std::vector<std::string> result;
+
+            if (*separated)
+                ++separated;
+
+            while ((*separated) && (*separated != ')'))
+            {
+                std::size_t escapeCounter = 0;
+                const char* start = separated;
+                QuotingState state = Unquoted;
+                bool escaped = false;
+
+                while (*separated)
+                {
+                    const char c = *separated++;
+
+                    if (state == Unquoted)
+                    {
+                        if ((c == '"') || (c == '\''))
+                        {
+                            state = (c == '"' ? DoubleQuoted : SingleQuoted);
+                            escaped = false;
+                        }
+                        else if ((c == '<') ||
+                                 (c == '(') ||
+                                 (c == '[') ||
+                                 (c == '{'))
+                            ++escapeCounter;
+                        else if ((escapeCounter) &&
+                                 ((c == '>') ||
+                                  (c == ')') ||
+                                  (c == ']') ||
+                                  (c == '}')))
+                            --escapeCounter;
+                        else if ((!escapeCounter) &&
+                                 ((c == ',') || (c == ')')))
+                        {
+                            result.push_back(TrimmedString(start,
+                                                           separated - 1));
+                            break;
+                        }
+                    }
+                    else
+                    {
+                        if (escaped)
+                            escaped = false;
+                        else if (c == '\\')
+                            escaped = true;
+                        else if (c == (state == DoubleQuoted ? '"' : '\''))
+                            state = Unquoted;
+                    }
+                }
+            }
+
+            return result;
+        }
+
+
+        /// Parse parameter declaration.
+
+        /// @param raw Raw declaration.
+        TestParameterDescriptor ParseDescriptor(const std::string& raw)
+        {
+            const char* position = raw.c_str();
+
+            // Split the declaration into its declaration and its default
+            // type.
+            const char* equalPosition = NULL;
+            std::size_t escapeCounter = 0;
+            QuotingState state = Unquoted;
+            bool escaped = false;
+
+            while (*position)
+            {
+                const char c = *position++;
+
+                if (state == Unquoted)
+                {
+                    if ((c == '"') || (c == '\''))
+                    {
+                        state = (c == '"' ? DoubleQuoted : SingleQuoted);
+                        escaped = false;
+                    }
+                    else if ((c == '<') ||
+                             (c == '(') ||
+                             (c == '[') ||
+                             (c == '{'))
+                        ++escapeCounter;
+                    else if ((escapeCounter) &&
+                             ((c == '>') ||
+                              (c == ')') ||
+                              (c == ']') ||
+                              (c == '}')))
+                        --escapeCounter;
+                    else if ((!escapeCounter) &&
+                             (c == '='))
+                    {
+                        equalPosition = position;
+                        break;
+                    }
+                }
+                else
+                {
+                    if (escaped)
+                        escaped = false;
+                    else if (c == '\\')
+                        escaped = true;
+                    else if (c == (state == DoubleQuoted ? '"' : '\''))
+                        state = Unquoted;
+                }
+            }
+
+            // Construct the parameter descriptor.
+            if (equalPosition)
+            {
+                const char* start = raw.c_str();
+                const char* end = start + raw.length();
+
+                return TestParameterDescriptor(
+                    std::string(TrimmedString(start,
+                                              equalPosition - 1)),
+                    std::string(TrimmedString(equalPosition,
+                                              end))
+                );
+            }
+            else
+                return TestParameterDescriptor(raw, std::string());
+        }
+    public:
+        TestParametersDescriptor()
+        {
+
+        }
+
+
+        TestParametersDescriptor(const char* rawDeclarations,
+                                 const char* rawValues)
+        {
+            // Parse the declarations.
+            std::vector<std::string> declarations =
+                ParseCommaSeparated(rawDeclarations);
+
+            for (std::vector<std::string>::const_iterator it =
+                     declarations.begin();
+                 it != declarations.end();
+                 ++it)
+                _parameters.push_back(ParseDescriptor(*it));
+
+            // Parse the values.
+            std::vector<std::string> values = ParseCommaSeparated(rawValues);
+
+            std::size_t
+                straightValues = (_parameters.size() > values.size() ?
+                                  values.size() :
+                                  _parameters.size()),
+                variadicValues = 0;
+
+            if (values.size() > _parameters.size())
+            {
+                if (straightValues > 0)
+                    --straightValues;
+                variadicValues = values.size() - _parameters.size() + 1;
+            }
+
+            for (std::size_t i = 0; i < straightValues; ++i)
+                _parameters[i].Value = values[i];
+
+            if (variadicValues)
+            {
+                std::stringstream variadic;
+
+                for (std::size_t i = 0; i < variadicValues; ++i)
+                {
+                    if (i)
+                        variadic << ", ";
+                    variadic << values[straightValues + i];
+                }
+
+                _parameters[_parameters.size() - 1].Value = variadic.str();
+            }
+        }
+
+
+        inline const std::vector<TestParameterDescriptor>& Parameters() const
+        {
+            return _parameters;
+        }
+    private:
+        std::vector<TestParameterDescriptor> _parameters;
+    };
+
+
+    /// Test descriptor.
+    class TestDescriptor
+    {
+    public:
+        /// Initialize a new test descriptor.
+
+        /// @param fixtureName Name of the fixture.
+        /// @param testName Name of the test.
+        /// @param runs Number of runs for the test.
+        /// @param iterations Number of iterations per run.
+        /// @param testFactory Test factory implementation for the test.
+        /// @param parameters Parametrized test parameters.
+        TestDescriptor(const char* fixtureName,
+                       const char* testName,
+                       std::size_t runs,
+                       std::size_t iterations,
+                       TestFactory* testFactory,
+                       TestParametersDescriptor parameters,
+                       bool isDisabled = false)
+            :   FixtureName(fixtureName),
+                TestName(testName),
+                CanonicalName(std::string(fixtureName) + "." + testName),
+                Runs(runs),
+                Iterations(iterations),
+                Factory(testFactory),
+                Parameters(parameters),
+                IsDisabled(isDisabled)
+        {
+
+        }
+
+
+        /// Dispose of a test descriptor.
+        ~TestDescriptor()
+        {
+            delete this->Factory;
+        }
+
+
+        /// Fixture name.
+        std::string FixtureName;
+
+
+        /// Test name.
+        std::string TestName;
+
+
+        /// Canonical name.
+
+        /// As: <FixtureName>.<TestName>.
+        std::string CanonicalName;
+
+
+        /// Test runs.
+        std::size_t Runs;
+
+
+        /// Iterations per test run.
+        std::size_t Iterations;
+
+
+        /// Test factory.
+        TestFactory* Factory;
+
+
+        /// Parameters for parametrized tests
+        TestParametersDescriptor Parameters;
+
+
+        /// Disabled.
+        bool IsDisabled;
+    };
+}
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_test_factory.hpp b/deps/inja/third_party/include/hayai/hayai_test_factory.hpp
new file mode 100755
index 0000000..1c5f469
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_test_factory.hpp
@@ -0,0 +1,26 @@
+#ifndef __HAYAI_TESTFACTORY
+#define __HAYAI_TESTFACTORY
+#include "hayai_test.hpp"
+
+namespace hayai
+{
+    /// Base class for test factory implementations.
+    class TestFactory
+    {
+    public:
+        /// Virtual destructor
+
+        /// Has no function in the base class.
+        virtual ~TestFactory()
+        {
+
+        }
+
+
+        /// Creates a test instance to run.
+
+        /// @returns a pointer to an initialized test.
+        virtual Test* CreateTest() = 0;
+    };
+}
+#endif
diff --git a/deps/inja/third_party/include/hayai/hayai_test_result.hpp b/deps/inja/third_party/include/hayai/hayai_test_result.hpp
new file mode 100755
index 0000000..6c5368d
--- /dev/null
+++ b/deps/inja/third_party/include/hayai/hayai_test_result.hpp
@@ -0,0 +1,304 @@
+#ifndef __HAYAI_TESTRESULT
+#define __HAYAI_TESTRESULT
+#include <vector>
+#include <stdexcept>
+#include <limits>
+#include <cmath>
+
+#include "hayai_clock.hpp"
+
+
+namespace hayai
+{
+    /// Test result descriptor.
+
+    /// All durations are expressed in nanoseconds.
+    struct TestResult
+    {
+    public:
+        /// Initialize test result descriptor.
+
+        /// @param runTimes Timing for the individual runs.
+        /// @param iterations Number of iterations per run.
+        TestResult(const std::vector<uint64_t>& runTimes,
+                   std::size_t iterations)
+            :   _runTimes(runTimes),
+                _iterations(iterations),
+                _timeTotal(0),
+                _timeRunMin(std::numeric_limits<uint64_t>::max()),
+                _timeRunMax(std::numeric_limits<uint64_t>::min()),
+                _timeStdDev(0.0),
+                _timeMedian(0.0),
+                _timeQuartile1(0.0),
+                _timeQuartile3(0.0)
+        {
+            // Summarize under the assumption of values being accessed more
+            // than once.
+            std::vector<uint64_t>::iterator runIt = _runTimes.begin();
+
+            while (runIt != _runTimes.end())
+            {
+                const uint64_t run = *runIt;
+
+                _timeTotal += run;
+                if ((runIt == _runTimes.begin()) || (run > _timeRunMax))
+                    _timeRunMax = run;
+                if ((runIt == _runTimes.begin()) || (run < _timeRunMin))
+                    _timeRunMin = run;
+
+                ++runIt;
+            }
+
+            // Calculate standard deviation.
+            const double mean = RunTimeAverage();
+            double accu = 0.0;
+
+            runIt = _runTimes.begin();
+
+            while (runIt != _runTimes.end())
+            {
+                const uint64_t run = *runIt;
+                const double diff = double(run) - mean;
+                accu += (diff * diff);
+
+                ++runIt;
+            }
+
+            _timeStdDev = std::sqrt(accu / (_runTimes.size() - 1));
+
+            // Calculate quartiles.
+            std::vector<uint64_t> sortedRunTimes(_runTimes);
+            std::sort(sortedRunTimes.begin(), sortedRunTimes.end());
+
+            const std::size_t sortedSize = sortedRunTimes.size();
+            const std::size_t sortedSizeHalf = sortedSize / 2;
+
+            if (sortedSize >= 2)
+            {
+                const std::size_t quartile = sortedSizeHalf / 2;
+
+                if ((sortedSize % 2) == 0)
+                {
+                    _timeMedian =
+                        (double(sortedRunTimes[sortedSizeHalf - 1]) +
+                         double(sortedRunTimes[sortedSizeHalf])) / 2;
+
+                    _timeQuartile1 =
+                        double(sortedRunTimes[quartile]);
+                    _timeQuartile3 =
+                        double(sortedRunTimes[sortedSizeHalf + quartile]);
+                }
+                else
+                {
+                    _timeMedian = double(sortedRunTimes[sortedSizeHalf]);
+
+                    _timeQuartile1 =
+                        (double(sortedRunTimes[quartile - 1]) +
+                         double(sortedRunTimes[quartile])) / 2;
+                    _timeQuartile3 = (
+                        double(
+                            sortedRunTimes[sortedSizeHalf + (quartile - 1)]
+                        ) +
+                        double(
+                            sortedRunTimes[sortedSizeHalf + quartile]
+                        )
+                    ) / 2;
+                }
+            }
+            else if (sortedSize > 0)
+            {
+                _timeQuartile1 = double(sortedRunTimes[0]);
+                _timeQuartile3 = _timeQuartile1;
+            }
+        }
+
+
+        /// Total time.
+        inline double TimeTotal() const
+        {
+            return double(_timeTotal);
+        }
+
+
+        /// Run times.
+        inline const std::vector<uint64_t>& RunTimes() const
+        {
+            return _runTimes;
+        }
+
+
+        /// Average time per run.
+        inline double RunTimeAverage() const
+        {
+            return double(_timeTotal) / double(_runTimes.size());
+        }
+
+        /// Standard deviation time per run.
+        inline double RunTimeStdDev() const
+        {
+            return _timeStdDev;
+        }
+
+        /// Median (2nd Quartile) time per run.
+        inline double RunTimeMedian() const
+        {
+            return _timeMedian;
+        }
+
+        /// 1st Quartile time per run.
+        inline double RunTimeQuartile1() const
+        {
+            return _timeQuartile1;
+        }
+
+        /// 3rd Quartile time per run.
+        inline double RunTimeQuartile3() const
+        {
+            return _timeQuartile3;
+        }
+
+        /// Maximum time per run.
+        inline double RunTimeMaximum() const
+        {
+            return double(_timeRunMax);
+        }
+
+
+        /// Minimum time per run.
+        inline double RunTimeMinimum() const
+        {
+            return double(_timeRunMin);
+        }
+
+
+        /// Average runs per second.
+        inline double RunsPerSecondAverage() const
+        {
+            return 1000000000.0 / RunTimeAverage();
+        }
+
+        /// Median (2nd Quartile) runs per second.
+        inline double RunsPerSecondMedian() const
+        {
+            return 1000000000.0 / RunTimeMedian();
+        }
+
+        /// 1st Quartile runs per second.
+        inline double RunsPerSecondQuartile1() const
+        {
+            return 1000000000.0 / RunTimeQuartile1();
+        }
+
+        /// 3rd Quartile runs per second.
+        inline double RunsPerSecondQuartile3() const
+        {
+            return 1000000000.0 / RunTimeQuartile3();
+        }
+
+        /// Maximum runs per second.
+        inline double RunsPerSecondMaximum() const
+        {
+            return 1000000000.0 / _timeRunMin;
+        }
+
+
+        /// Minimum runs per second.
+        inline double RunsPerSecondMinimum() const
+        {
+            return 1000000000.0 / _timeRunMax;
+        }
+
+
+        /// Average time per iteration.
+        inline double IterationTimeAverage() const
+        {
+            return RunTimeAverage() / double(_iterations);
+        }
+
+        /// Standard deviation time per iteration.
+        inline double IterationTimeStdDev() const
+        {
+            return RunTimeStdDev() / double(_iterations);
+        }
+
+        /// Median (2nd Quartile) time per iteration.
+        inline double IterationTimeMedian() const
+        {
+            return RunTimeMedian() / double(_iterations);
+        }
+
+        /// 1st Quartile time per iteration.
+        inline double IterationTimeQuartile1() const
+        {
+            return RunTimeQuartile1() / double(_iterations);
+        }
+
+        /// 3rd Quartile time per iteration.
+        inline double IterationTimeQuartile3() const
+        {
+            return RunTimeQuartile3() / double(_iterations);
+        }
+
+        /// Minimum time per iteration.
+        inline double IterationTimeMinimum() const
+        {
+            return _timeRunMin / double(_iterations);
+        }
+
+
+        /// Maximum time per iteration.
+        inline double IterationTimeMaximum() const
+        {
+            return _timeRunMax / double(_iterations);
+        }
+
+
+        /// Average iterations per second.
+        inline double IterationsPerSecondAverage() const
+        {
+            return 1000000000.0 / IterationTimeAverage();
+        }
+
+        /// Median (2nd Quartile) iterations per second.
+        inline double IterationsPerSecondMedian() const
+        {
+            return 1000000000.0 / IterationTimeMedian();
+        }
+
+        /// 1st Quartile iterations per second.
+        inline double IterationsPerSecondQuartile1() const
+        {
+            return 1000000000.0 / IterationTimeQuartile1();
+        }
+
+        /// 3rd Quartile iterations per second.
+        inline double IterationsPerSecondQuartile3() const
+        {
+            return 1000000000.0 / IterationTimeQuartile3();
+        }
+
+        /// Minimum iterations per second.
+        inline double IterationsPerSecondMinimum() const
+        {
+            return 1000000000.0 / IterationTimeMaximum();
+        }
+
+
+        /// Maximum iterations per second.
+        inline double IterationsPerSecondMaximum() const
+        {
+            return 1000000000.0 / IterationTimeMinimum();
+        }
+    private:
+        std::vector<uint64_t> _runTimes;
+        std::size_t _iterations;
+        uint64_t _timeTotal;
+        uint64_t _timeRunMin;
+        uint64_t _timeRunMax;
+        double _timeStdDev;
+        double _timeMedian;
+        double _timeQuartile1;
+        double _timeQuartile3;
+    };
+}
+#endif