LibXR::Print::WalkableFrontend Concept Reference

可向指定 visitor 发射格式事件的前端 / Frontend that can emit format events into the supplied visitor More...

#include <print_contract.hpp>

Concept definition

template<typename Frontend, typename Visitor>
concept LibXR::Print::WalkableFrontend =  SourceFrontend<Frontend> && requires(Visitor& visitor) {
  { Frontend::Walk(visitor) } -> std::same_as<typename Frontend::ErrorType>;
}

Detailed Description

可向指定 visitor 发射格式事件的前端 / Frontend that can emit format events into the supplied visitor

Template Parameters

Frontend	候选前端类型 / Candidate frontend type
Visitor	候选 visitor 类型 / Candidate visitor type

Note

必须支持 Walk(visitor)，并返回 ErrorType / Must support Walk(visitor) and return ErrorType

Definition at line 53 of file print_contract.hpp.