zmij / afsm Goto Github PK

Use ::boost (::std) ::variant for storing substates of state machines that do not have history.

Create a readme with diagrams and code

Implement a state machine that utilizes a priority queue instead of plain queue to store next/deferred events.

Implement tags for different exception handling policies in state transitions

• No handling (no try-catch block, let the exception fall through)
• Catch all (catch all exception, return refuse status)
• Strict (carry out all operations on state copies and swap them after)

Hi, it seems like the file pushkin/meta.hpp cannot be found during the build, while I have included it in my include path as "${workspaceFolder}/dependencies/afsm/include", "${workspaceFolder}/dependencies/metapushkin/include"
(both are put under the folder dependencies).

My error is as following:
In file included from /usr/local/include/afsm/detail/base_states.hpp:11, from /usr/local/include/afsm/fsm.hpp:11, from /home/carina/trading_with_ros/src/crypto/src/trading_nodes/data_collector.cpp:8: /usr/local/include/afsm/definition.hpp:11:10: fatal error: pushkin/meta.hpp: No such file or directory 11 | #include <pushkin/meta.hpp> | ^~~~~~~~~~~~~~~~~~ compilation terminated. make[2]: *** [CMakeFiles/data_collector_node.dir/build.make:63: CMakeFiles/data_collector_node.dir/src/trading_nodes/data_collector.cpp.o] Error 1 make[1]: *** [CMakeFiles/Makefile2:105: CMakeFiles/data_collector_node.dir/all] Error 2 make: *** [Makefile:141: all] Error 2

Do you have any idea why this is the case? Thank you so much.

Hi maybe this is a silly question but I am trying to include this library in my project, and I couldn't find the file lib/meta/include under the root of this repository as stated in README.md. Or should I just include metapushkin as you suggested in another issue?
Thank you so much for your help!

Building on Windows I get this compilation error:

afsm\include\afsm/definition.hpp(231): error C2977: 'afsm::def::traits::inner_states_definitions': too many template arguments
afsm\include\afsm/detail/def_traits.hpp(151): note: see declaration of 'afsm::def::traits::inner_states_definitions'
afsm\include\afsm/definition.hpp(254): note: see reference to class template instantiation 'afsm::def::state_machine_def<T,Tags...>' being compiled
afsm\include\afsm/definition.hpp(232): error C2143: syntax error: missing ';' before '>'
afsm\include\afsm/definition.hpp(232): error C2059: syntax error: '>'
afsm\include\afsm/definition.hpp(232): error C2238: unexpected token(s) preceding ';'

Implement an option to push/pop current state. Useful for recursive parsers to reduce stack usage and avoid stack overflow.

I believe the README is up to date, mentioning C++14, thus the flag of the repo & the description should be updated as well (mentioning C++11).

State machines that do not defer events should not use a deferred queue

Make process_event private in ::afsm::state<> and ::afsm::inner_state_machine<> to make it impossible to post event to inner states.
Add their callers to friends.

Rename the variable to be consistent with Find* cmake scripts

SourceState and TargetState are really rarely used in practice (at least in my projects), so they can be made optional in state transition actions not to clutter the code with unused template arguments and function parameters.

Implement a state machine that contains 2 or more nested independent state machines. It should pass all events to all regions that can handle the events.

Replace current implementation of common base with a tag

Cloned the library to Mac and went through the build. It has compile errors in your support library. Full log is below.

cmake ..
-- The C compiler identification is AppleClang 11.0.0.11000033
-- The CXX compiler identification is AppleClang 11.0.0.11000033
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc
-- Check for working C compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/cc -- works
-- Detecting C compiler ABI info
-- Detecting C compiler ABI info - done
-- Detecting C compile features
-- Detecting C compile features - done
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++
-- Check for working CXX compiler: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/c++ -- works
-- Detecting CXX compiler ABI info
-- Detecting CXX compiler ABI info - done
-- Detecting CXX compile features
-- Detecting CXX compile features - done
CMake Warning at CMakeLists.txt:38 (message):
ccache enabled, but not found

-- AFSM C++ standard 11
Cloning into 'cmake-scripts'...
-- Metapushkin include dir /Users//Projects/FSM/afsm/build/src/metapushkin/include
-- Looking for pthread.h
-- Looking for pthread.h - found
-- Looking for pthread_create
-- Looking for pthread_create - found
-- Found Threads: TRUE
-- Configuring done
-- Generating done
-- Build files have been written to: /Users//Projects/FSM/afsm/build
@ONM-BYADAV-02:~/Projects/FSM/afsm/build$ make
Scanning dependencies of target gtest
[ 2%] Creating directories for 'gtest'
[ 5%] Performing download step (git clone) for 'gtest'
-- gtest download command succeeded. See also /Users//Projects/FSM/afsm/build/src/gtest-stamp/gtest-download-.log
[ 8%] No patch step for 'gtest'
[ 11%] No update step for 'gtest'
[ 14%] Performing configure step for 'gtest'
-- gtest configure command succeeded. See also /Users//Projects/FSM/afsm/build/src/gtest-stamp/gtest-configure-.log
[ 17%] Performing build step for 'gtest'
-- gtest build command succeeded. See also /Users//Projects/FSM/afsm/build/src/gtest-stamp/gtest-build-.log
[ 20%] No install step for 'gtest'
[ 22%] Completed 'gtest'
[ 22%] Built target gtest
Scanning dependencies of target gmock
[ 25%] Creating directories for 'gmock'
[ 28%] Performing download step (git clone) for 'gmock'
-- gmock download command succeeded. See also /Users//Projects/FSM/afsm/build/src/gmock-stamp/gmock-download-.log
[ 31%] No patch step for 'gmock'
[ 34%] No update step for 'gmock'
[ 37%] Performing configure step for 'gmock'
-- gmock configure command succeeded. See also /Users//Projects/FSM/afsm/build/src/gmock-stamp/gmock-configure-.log
[ 40%] Performing build step for 'gmock'
-- gmock build command succeeded. See also /Users//Projects/FSM/afsm/build/src/gmock-stamp/gmock-build-.log
[ 42%] No install step for 'gmock'
[ 45%] Completed 'gmock'
[ 45%] Built target gmock
Scanning dependencies of target metapushkin
[ 48%] Creating directories for 'metapushkin'
[ 51%] Performing download step (git clone) for 'metapushkin'
-- metapushkin download command succeeded. See also /Users//Projects/FSM/afsm/build/src/metapushkin-stamp/metapushkin-download-.log
[ 54%] No patch step for 'metapushkin'
[ 57%] No update step for 'metapushkin'
[ 60%] Performing configure step for 'metapushkin'
-- metapushkin configure command succeeded. See also /Users//Projects/FSM/afsm/build/src/metapushkin-stamp/metapushkin-configure-.log
[ 62%] Performing build step for 'metapushkin'
-- metapushkin build command succeeded. See also /Users//Projects/FSM/afsm/build/src/metapushkin-stamp/metapushkin-build-*.log
[ 65%] No install step for 'metapushkin'
[ 68%] Completed 'metapushkin'
[ 68%] Built target metapushkin
Scanning dependencies of target test-afsm-base
[ 71%] Building CXX object test/CMakeFiles/test-afsm-base.dir/__/lib/ansi-colors/src/ansi_colors.cpp.o
[ 74%] Building CXX object test/CMakeFiles/test-afsm-base.dir/static_tests.cpp.o
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:19:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:37:21: error: no template
named 'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
struct join< ::std::integer_sequence<T, A...>, ::std::integer_sequence<T, B...> > {
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:19:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:37:55: error: no template
named 'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
struct join< ::std::integer_sequence<T, A...>, ::std::integer_sequence<T, B...> > {
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:19:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:38:25: error: no template
named 'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
using type = ::std::integer_sequence<T, A..., B...>;
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:19:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:42:21: error: no template
named 'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
struct join< ::std::integer_sequence<T, A...>, ::std::integral_constant<T, B > > {
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:19:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:43:25: error: no template
named 'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
using type = ::std::integer_sequence<T, A..., B>;
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:19:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:47:53: error: no template
named 'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
struct join< ::std::integral_constant<T, A>, ::std::integer_sequence<T, B...> > {
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:19:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:48:25: error: no template
named 'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
using type = ::std::integer_sequence<T, A, B...>;
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:19:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:61:25: error: no template
named 'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
using type = ::std::integer_sequence< T, V, Values... >;
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:19:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:72:25: error: no template
named 'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
using type = ::std::integer_sequence< T, V, Values... >;
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:19:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:149:20: error: no member
named 'index_sequence' in namespace 'std'
::std::index_sequence,
~~~~~~~^
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:149:40: error: expected
class name
::std::index_sequence,
^
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:150:20: error: unknown
template name 'index_sequence'
::std::index_sequence<>
^
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/integer_sequence.hpp:163:25: error: no template
named 'index_sequence' in namespace 'std'
using type = ::std::index_sequence<>;
~~~~~~~^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:47:16: error: variable templates
are a C++14 extension [-Werror,-Wc++14-extensions]
constexpr bool contains_v = contains_t<T, Y...>::value;
^
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:68:24: error: no template named
'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
struct is_empty<::std::integer_sequence> : ::std::true_type {};
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:70:24: error: no template named
'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
struct is_empty<::std::integer_sequence<T, Values...>> : ::std::false_type {};
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:75:16: error: variable templates
are a C++14 extension [-Werror,-Wc++14-extensions]
constexpr bool is_empty_v = is_empty_t<T...>::value;
^
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:102:21: error: no template named
'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
struct front<::std::integer_sequence<T, V, Values...>> : std::integral_constant<T, V> {};
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
In file included from /Users//Projects/FSM/afsm/test/static_tests.cpp:9:
In file included from /Users//Projects/FSM/afsm/include/afsm/fsm.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/detail/base_states.hpp:11:
In file included from /Users//Projects/FSM/afsm/include/afsm/definition.hpp:11:
In file included from /Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta.hpp:14:
/Users//Projects/FSM/afsm/build/src/metapushkin/include/pushkin/meta/algorithm.hpp:104:21: error: no template named
'integer_sequence' in namespace 'std'; did you mean '__integer_sequence'?
struct front<::std::integer_sequence> {
~~~~~~~^~~~~~~~~~~~~~~~
__integer_sequence
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/../include/c++/v1/__tuple:93:8: note:
'__integer_sequence' declared here
struct __integer_sequence {
^
fatal error: too many errors emitted, stopping now [-ferror-limit=]
20 errors generated.
make[2]: *** [test/CMakeFiles/test-afsm-base.dir/static_tests.cpp.o] Error 1
make[1]: *** [test/CMakeFiles/test-afsm-base.dir/all] Error 2
make: *** [all] Error 2

Create system for changing behavior of event that cannot be handled
Possible policies:

• Return refuse (current behavior, should be default)
• Throw exception with decent description
• Assert

Pushdown stacks
Nested state containers

Vending machine basic state machine

Add dependent libraries via ExternalProject