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Test and fix C++ invokation of callback

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This commit is contained in:
Olivier Goffart 2021-03-22 14:30:00 +01:00
parent d79131f18f
commit bd6cace54c
3 changed files with 43 additions and 1 deletions
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2
api/sixtyfps-cpp/include/sixtyfps_interpreter.h
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@ -422,7 +422,7 @@ public:
using cbindgen_private::ValueOpaque;
auto actual_cb = [](void *data, Slice<ValueOpaque> arg, ValueOpaque *ret) {
Slice<Value> args_view { reinterpret_cast<Value *>(arg.ptr), arg.len };
Value r = (*reinterpret_cast<F *>(data))(arg);
Value r = (*reinterpret_cast<F *>(data))(args_view);
new (ret) Value(std::move(r));
};
return cbindgen_private::sixtyfps_interpreter_component_instance_set_callback(

38
api/sixtyfps-cpp/tests/interpreter.cpp
View file

@ -264,3 +264,41 @@ SCENARIO("Component Compiler")
REQUIRE(result.has_value());
}
}
SCENARIO("Invoke callback")
{
using namespace sixtyfps::interpreter;
using namespace sixtyfps;
ComponentCompiler compiler;
SECTION("valid")
{
auto result = compiler.build_from_source("export Dummy := Rectangle { callback foo(string, int) -> string; }", "");
REQUIRE(result.has_value());
auto instance = result->create();
REQUIRE(instance->set_callback("foo", [](auto args) {
SharedString arg1 = *args[0].to_string();
int arg2 = *args[1].to_number();
std::string res = std::string(arg1) + ":" + std::to_string(arg2);
return Value(SharedString(res));
}));
Value args[] = { SharedString("Hello"), 42. };
auto res = instance->invoke_callback("foo", Slice<Value>{args, 2});
REQUIRE(res.has_value());
REQUIRE(*res->to_string() == SharedString("Hello:42"));
}
SECTION("invalid")
{
auto result = compiler.build_from_source("export Dummy := Rectangle { callback foo(string, int) -> string; }", "");
REQUIRE(result.has_value());
auto instance = result->create();
REQUIRE(!instance->set_callback("bar", [](auto) {
return Value();
}));
Value args[] = { SharedString("Hello"), 42. };
auto res = instance->invoke_callback("bar", Slice<Value>{args, 2});
REQUIRE(!res.has_value());
}
}