Subject: [boost] Is there any interest in a dependency injection library?
From: Krzysztof Jusiak (krzysztof_at_[hidden])
Date: 2014-07-24 15:47:27
Hi,
Is there any interest in a C++03/C++11/C++14 header only, type safe,
library providing compile time, macro free *constructor dependency
injection <http://en.wikipedia.org/wiki/Dependency_injection>*?
*Key features:*
* *Compile time *- no exceptions - if application compiles all dependencies
will be be created accurately
* *Macro free* - by default no need to specify constructor traits or
register anything (less intrusive)
* *Scopes deduction* - scopes are deduced based on type semantic
* *Automatic conversion* between std/boost smart pointers
* *Compile time policies* - example to detect circular dependencies or
limit supported types only to specified
*Hello World*
---------------------------------------------------------------------------------------------------------->
#include <memory>
#include <boost/shared_ptr.hpp>
*#include <boost/di.hpp>*
*namespace di = boost::di;*
struct interface { virtual ~interface() { } };
struct implementation : interface { };
class hello_world {
public:
hello_world(std::unique_ptr<interface> up
, const std::shared_ptr<interface>& sp1
, boost::shared_ptr<interface> sp2
, int i)
: i(i)
{
assert(dynamic_cast<implementation*>(up.get()));
assert(dynamic_cast<implementation*>(sp1.get()));
assert(dynamic_cast<implementation*>(sp2.get()));
assert(sp1.get() == sp2.get());
assert(i == 0);
}
int run() { return i; }
private:
int i = 0;
};
int main() {
// create injector and configure bindings
auto injector = *di::make_injector*(
*di::bind*<interface, implementation>() // scope will be deduced
);
// create and run hello_world
return injector.*create*<hello_world>().run();
}
<----------------------------------------------------------------------------------------------------------
*Overview*:
* boost library incubator:
http://rrsd.com/blincubator.com/bi_library/di-dependency-injection-2
* repository: https://github.com/krzysztof-jusiak/di
* documentation: http://krzysztof-jusiak.github.io/di/boost/libs/di/doc/html
* issues: https://github.com/krzysztof-jusiak/di/issues
* download: https://github.com/krzysztof-jusiak/di/archive/master.zip
*Supported Compilers* - 100% test coverage:
* Linux (x86/x86-64)
* Clang 3.2/3.3/3.4/3.4.2+ (clean with Clang Static Analyzer and
Valgrind)
* GCC 4.7.3/4.8.2/4.9.0+ (clean with Valgrind)
* Intel C++ 14.0.3+ (clean with Valgrind)
* Windows (x86/x86-64)
* MinGW 4.7.3/4.8.2+
* Visual Studio 2013+ (clean with DrMemory)
* Darwin/Mac OS (x86-64)
* Clang 503.0.40+ (Apple LLVM version 5.1)
*Continuous integration*:
* Linux, Darwin/Mac OS: https://travis-ci.org/krzysztof-jusiak/di
* Windows: https://ci.appveyor.com/project/krzysztof-jusiak/di
* Coverage: https://coveralls.io/r/krzysztof-jusiak/di
*Similar libraries*:
* https://bitbucket.org/cheez/dicpp
* https://code.google.com/p/infectorpp
* https://github.com/phs/sauce
* https://code.google.com/p/wallaroo
* https://code.google.com/p/hypodermic
* https://github.com/admiyo/CppInject
* http://qtioccontainer.sourceforge.net
* https://code.google.com/p/autumnframework
* http://sourceforge.net/projects/cpp-resolver (proposal for boost library
in 2009: http://listarchives.boost.org/Archives/boost/2009/10/157477.php)
* https://code.google.com/p/pococapsule
* https://code.google.com/p/spring-cpp
* http://www.cs.utah.edu/~arichard/inject.html
* http://bobah.net/d4d/source-code/misc/cpp-dependency-injection
* https://code.google.com/p/ffead-cpp
* http://codebros.github.io/DiLite
* https://code.google.com/p/kindi
Java: https://github.com/google/guice
C#: http://www.ninject.org/
Source code was internally reviewed. DI was successfully used in a
commercial project as well.
Looking forward to hear from you. Any feedback is more than welcome.
Best regards, Kris