King_DuckZ/wrenpp
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Allow client code to provide their foreign_class_fn() implementation.

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King_DuckZ 2020-04-26 21:25:26 +02:00
commit 3d68124a60
2 changed files with 27 additions and 0 deletions
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16
src/wren/vm.cpp
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@ -55,6 +55,19 @@ namespace wren {
auto retval = reinterpret_cast<WrenForeignMethodFn>(dfm->make(cb->owner, func));
return retval;
}
WrenForeignClassMethods foreign_class_fn (WrenVM* wvm, const char* module, const char* class_name) {
auto cb = static_cast<detail::Callbacks*>(wrenGetUserData(wvm));
assert(cb);
assert(cb->foreign_class_fn and cb->config_obj and cb->owner);
foreign_class_t funcs = cb->foreign_class_fn(*cb->config_obj, cb->owner, module, class_name);
DynafuncMaker* const dfm = cb->dynafunc;
assert(dfm);
WrenForeignClassMethods retval;
retval.allocate = reinterpret_cast<WrenForeignMethodFn>(dfm->make(cb->owner, funcs.allocate));
retval.finalize = funcs.finalize;
return retval;
}
} //unnamed namespace
struct VM::LocalData {
@ -106,6 +119,9 @@ namespace wren {
if (cb.foreign_method_fn)
wconf.bindForeignMethodFn = &foreign_method_fn;
if (cb.foreign_class_fn)
wconf.bindForeignClassFn = &foreign_class_fn;
m_local->wvm = wrenNewVM(&wconf);
if (not m_local->wvm)
throw std::runtime_error("Failed to initialize Wren VM");