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Fix #9756: Network command unpack proc was not generated in all cases.

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The case where the callback proc takes all command results but not any of
the command parameters was not handled properly.
This commit is contained in:
Michael Lutz
2021-12-20 16:59:07 +01:00
parent 9c18236f2c
commit b11bd185e3
2 changed files with 7 additions and 1 deletions
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3
src/command_type.h
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@@ -409,12 +409,14 @@ template <typename T> struct CommandFunctionTraitHelper;
template <typename... Targs>
struct CommandFunctionTraitHelper<CommandCost(*)(DoCommandFlag, Targs...)> {
using Args = std::tuple<std::decay_t<Targs>...>;
using RetTypes = void;
using CbArgs = Args;
using CbProcType = void(*)(Commands, const CommandCost &);
};
template <template <typename...> typename Tret, typename... Tretargs, typename... Targs>
struct CommandFunctionTraitHelper<Tret<CommandCost, Tretargs...>(*)(DoCommandFlag, Targs...)> {
using Args = std::tuple<std::decay_t<Targs>...>;
using RetTypes = std::tuple<std::decay_t<Tretargs>...>;
using CbArgs = std::tuple<std::decay_t<Tretargs>..., std::decay_t<Targs>...>;
using CbProcType = void(*)(Commands, const CommandCost &, Tretargs...);
};
@@ -426,6 +428,7 @@ template <Commands Tcmd> struct CommandTraits;
template<> struct CommandTraits<cmd_> { \
using ProcType = decltype(&proc_); \
using Args = typename CommandFunctionTraitHelper<ProcType>::Args; \
using RetTypes = typename CommandFunctionTraitHelper<ProcType>::RetTypes; \
using CbArgs = typename CommandFunctionTraitHelper<ProcType>::CbArgs; \
using RetCallbackProc = typename CommandFunctionTraitHelper<ProcType>::CbProcType; \
static constexpr Commands cmd = cmd_; \