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Add missing gpp_rethrow

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Ingvar Stepanyan
2021-08-06 23:12:27 +00:00
parent 6add480400
commit 5eb471b0b3
1 changed files with 19 additions and 11 deletions
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8
api.cpp
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@@ -35,6 +35,12 @@ void gpp_log_error(GPContext *context, const char *text, void *data) {
EM_JS([[noreturn]] void, throw_msg, (const char *msg), EM_JS([[noreturn]] void, throw_msg, (const char *msg),
{ throw new Error(UTF8ToString(msg)); }); { throw new Error(UTF8ToString(msg)); });
// This is workaround for Emscripten throwing C++ exceptions as meaningless
// numbers (pointers) instead of actual messages.
// To rethrow actual message, we manually wrap all Embind exports into
// callbacks, those callbacks are passed to this function,
// it ensures that all destructors are executed correctly, catches C++ exception
// if any, extracts the message and rethrows it as a JS one. Easy-peasy...
template <typename Func> template <typename Func>
auto gpp_rethrow(Func func) { auto gpp_rethrow(Func func) {
try { try {
@@ -61,6 +67,7 @@ class Context {
} }
val supportedOps() { val supportedOps() {
return gpp_rethrow([=]() {
auto ops = auto ops =
GPP_CALL(CameraAbilities, gp_camera_get_abilities(camera.get(), _)) GPP_CALL(CameraAbilities, gp_camera_get_abilities(camera.get(), _))
.operations; .operations;
@@ -73,6 +80,7 @@ class Context {
result.set("config", (ops & GP_OPERATION_CONFIG) != 0); result.set("config", (ops & GP_OPERATION_CONFIG) != 0);
result.set("triggerCapture", (ops & GP_OPERATION_TRIGGER_CAPTURE) != 0); result.set("triggerCapture", (ops & GP_OPERATION_TRIGGER_CAPTURE) != 0);
return result; return result;
});
} }
bool consumeEvents() { bool consumeEvents() {