zeek/src/script_opt/CPP/Func.cc

78 lines
2.5 KiB
C++

// See the file "COPYING" in the main distribution directory for copyright.
#include "zeek/script_opt/CPP/Func.h"
#include <string_view>
#include "zeek/Desc.h"
#include "zeek/broker/Data.h"
namespace zeek::detail {
using namespace std;
unordered_map<p_hash_type, CompiledScript> compiled_scripts;
unordered_map<string, unordered_set<p_hash_type>> added_bodies;
unordered_map<p_hash_type, void (*)()> standalone_callbacks;
vector<void (*)()> standalone_finalizations;
void CPPFunc::Describe(ODesc* d) const {
d->AddSP("compiled function");
d->Add(name);
}
CPPStmt::CPPStmt(const char* _name, const char* filename, int line_num) : Stmt(STMT_CPP), name(_name) {
// We build a fake CallExpr node to be used for error-reporting.
// It doesn't matter that it matches the actual function/event/hook
// type-checking-wise, but it *does* need to type-check.
auto no_args = make_intrusive<RecordType>(nullptr);
auto no_yield = base_type(TYPE_VOID);
auto ft = make_intrusive<FuncType>(no_args, no_yield, FUNC_FLAVOR_FUNCTION);
vector<StmtPtr> no_bodies;
vector<int> no_priorities;
auto sf = make_intrusive<ScriptFunc>(name, ft, no_bodies, no_priorities);
auto fv = make_intrusive<FuncVal>(sf);
auto empty_args = make_intrusive<ListExpr>();
ce = make_intrusive<CallExpr>(make_intrusive<ConstExpr>(fv), empty_args);
Location loc(filename, line_num, line_num);
ce->SetLocationInfo(&loc);
}
CPPLambdaFunc::CPPLambdaFunc(string _name, FuncTypePtr ft, CPPStmtPtr _l_body)
: ScriptFunc(std::move(_name), std::move(ft), {_l_body}, {0}) {
l_body = std::move(_l_body);
}
std::optional<BrokerData> CPPLambdaFunc::SerializeCaptures() const {
using namespace std::literals;
auto name = "CopyFrame"sv;
auto vals = l_body->SerializeLambdaCaptures();
BrokerListBuilder body;
body.Reserve(vals.size());
for ( const auto& val : vals ) {
BrokerData tmp;
if ( ! tmp.Convert(val) )
return std::nullopt;
TypeTag tag = val->GetType()->Tag();
body.AddList(std::move(tmp), static_cast<int64_t>(tag));
}
BrokerListBuilder builder;
builder.Reserve(2);
builder.Add(name.data(), name.size());
builder.Add(std::move(body));
return std::move(builder).Build();
}
void CPPLambdaFunc::SetCaptures(Frame* f) { l_body->SetLambdaCaptures(f); }
FuncPtr CPPLambdaFunc::DoClone() { return make_intrusive<CPPLambdaFunc>(name, type, l_body->Clone()); }
} // namespace zeek::detail