依赖注入注入参数

Question

我试图在我的项目中设置依赖注入(https://boost-ext.github.io/di/)，并得到以下编译错误：“没有找到匹配的重载函数”和“无效的显式模板参数”。

我的测试设置如下

#include "di.hpp"
namespace di = boost::di;

class IA{
public:
    virtual void doSomething() = 0;
};

class IB{
public:
    virtual void doSomething() = 0;
};

class IC{
public:
    virtual void doSomething() = 0;
};

class A : public IA {
public:
    void doSomething() override {
    }
};

class B : public IB {
public:
    void doSomething() override {

    }
};

class C : public IC{
    std::shared_ptr<A> a_;
    std::shared_ptr<B> b_;
public:
    C(std::shared_ptr<A> a, std::shared_ptr<B> b) : a_(a), b_(b){}
    void doSomething() override {
    }
};

int main(int argc, char *argv[]) {

    const auto injector = di::make_injector(
            di::bind<IA>.to<A>(),
            di::bind<IB>.to<B>(),
            di::bind<IC>.to<C>()
    );
    auto test = injector.create<IC>();
}

以下是我的详细编译错误：

错误信息：'boost::ext::di::v1_2_0::core::injector，boost::ext::di::v1_2_0::core::dependency，boost::ext::di::v1_2_0::core::dependency，boost::ext::di::v1_2_0::core::dependency：：create‘：没有找到与TConfig=boost::ext::di::v1_2_0::config、TScope=boost::ext::di::v1_2_0::scopes::deduce，TExpected=IA、T=A、TName=boost::ext::di::v1_2_0::no_name、TPriority=void匹配的重载函数“T boost::ext::di::v1_2_0::core::injector，boost::ext::di::v1_2_0::core::dependency”的无效显式模板参数boost::ext::di::v1_2_0::core::dependency，boost::ext::di::v1_2_0::core::dependency>::create(void) const‘with TConfig=boost::ext::di::v1_2_0::config，TScope=boost::ext::di::v1_2_0::scopes::deduce，TExpected=IA，T=A注意:参见'boost::ext::di::v1_2_0::core::injector，boost::ext::di::v1_2_0::core::dependency，boost::ext::di::v1_2_0::core::dependency>::create‘与TConfig=boost::ext::di::v1_2_0::config，TScope=boost::ext::di::v1_2_0::scopes::deduce，TExpected=IA，T=A，TName=boost::ext::di::v1_2_0::no_name，TPriority=void，TCtor=boost::ext::di::v1_2_0::core::none

你知道我做错了什么吗？

Answer 1

你打电话是错的，它应该类似于：

auto test = injector.create<std::unique_ptr<IC>>();

演示