Files
logos-cpp-sdk/cpp-generator/experimental/lidl_gen_cdylib.cpp
Dario Gabriel LipicarandClaude Opus 4.8 ca0165ee6d fix: wire universal-cdylib modules() independent of the context latch
A C++ interface:"universal" cdylib that calls another module via
modules().<dep>... segfaulted on its FIRST cross-module call: the typed
dependency surface (LogosModules) was wired inside lidlTryFireContext, which
returns early when no persistence context was stored (g_ctxStored == false).
When the daemon never delivers a context (observed: zero set_context calls for
a context-less module), maybeSetLogosModules never ran, m_logosModulesPtr
stayed null, and LogosModuleContext::modules() dereferenced null.

modules() does not need the context — each dependency client bakes its
target+origin at codegen time and creates its lp client lazily on first call.
So wire it in its own context-independent once-latch (lidlEnsureModulesWired),
called at the top of lidlTryFireContext before the context-gated early return,
i.e. on the first dispatch / set_context / set_emit_callback. A module with
deps but no stored context now has modules() wired before any handler runs.
(Bump the concurrent-dispatch doctest's post-daemon-start sleep 3 -> 6 to match
the rust spec's cold-start margin.)

Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
2026-06-19 12:57:25 -03:00

504 lines
24 KiB
C++

#include "lidl_gen_cdylib.h"
#include "lidl_emit_common.h"
#include <QTextStream>
QString lidlToPascalCase(const QString& name);
QString lidlTypeToQt(const TypeExpr& te);
bool lidlIsStdConvertible(const TypeExpr& te);
namespace {
// The cdylib-supported subset: std-convertible LIDL types only — the same
// Qt-free set the std apiStyle handled, so any universal module that built
// under std also builds as a header-first cdylib.
bool typeSupported(const TypeExpr& te, bool isReturn)
{
if (te.kind == TypeExpr::Primitive) {
if (te.name == "tstr" || te.name == "bstr" || te.name == "int"
|| te.name == "uint" || te.name == "float64" || te.name == "bool")
return true;
// any (LogosMap/LogosList/json) routes through nlohmann in either
// direction; result (StdLogosResult) and void only make sense as a
// return. All Qt-free.
if (te.name == "any")
return true;
if (isReturn && (te.name == "result" || te.name == "void"))
return true;
return false;
}
if (te.kind == TypeExpr::Array && te.elements.size() == 1) {
const TypeExpr& e = te.elements[0];
return e.kind == TypeExpr::Primitive
&& (e.name == "tstr" || e.name == "int" || e.name == "uint"
|| e.name == "float64" || e.name == "bool" || e.name == "any");
}
// Maps ({k: v}, i.e. LogosMap) round-trip through nlohmann too.
if (te.kind == TypeExpr::Map)
return true;
return false;
}
// json arg expression -> std-typed C++ expression
QString jsonArgToStd(const TypeExpr& te, const QString& expr)
{
if (te.kind == TypeExpr::Primitive) {
if (te.name == "tstr") return expr + ".get<std::string>()";
if (te.name == "bstr") return "lidlBytesFromJson(" + expr + ")";
if (te.name == "int") return expr + ".get<int64_t>()";
if (te.name == "uint") return expr + ".get<uint64_t>()";
if (te.name == "float64") return expr + ".get<double>()";
if (te.name == "bool") return expr + ".get<bool>()";
}
if (te.kind == TypeExpr::Array && te.elements.size() == 1) {
const QString inner = lidlTypeToStd(te);
return expr + ".get<" + inner + ">()";
}
return expr;
}
// std-typed return variable -> json expression
QString stdReturnToJson(const MethodDecl& md, const QString& var)
{
const TypeExpr& te = md.returnType;
if (md.resultReturn) {
// StdLogosResult -> the canonical {success, value, error} object
// (same shape logos_json_convert emits for Qt LogosResult).
return "lidlResultToJson(" + var + ")";
}
if (md.jsonReturn) {
return var; // LogosMap / LogosList are nlohmann::json already
}
if (te.kind == TypeExpr::Primitive) {
if (te.name == "bstr") return "lidlBytesToJson(" + var + ")";
return "nlohmann::json(" + var + ")";
}
return "nlohmann::json(" + var + ")";
}
void emitInterfaceJson(QTextStream& s, const ModuleDecl& module)
{
s << "static nlohmann::json lidlInterfaceJson()\n{\n";
s << " nlohmann::json methods = nlohmann::json::array();\n";
for (const MethodDecl& md : module.methods) {
s << " {\n nlohmann::json obj;\n";
s << " obj[\"name\"] = \"" << md.name << "\";\n";
if (!md.description.empty()) {
QString esc = qs(md.description);
esc.replace('\\', "\\\\").replace('"', "\\\"").replace('\n', "\\n");
s << " obj[\"description\"] = \"" << esc << "\";\n";
}
QString sig = qs(md.name) + "(";
for (int i = 0; i < md.params.size(); ++i) {
sig += lidlTypeToQt(md.params[i].type);
if (i + 1 < md.params.size()) sig += ",";
}
sig += ")";
s << " obj[\"signature\"] = \"" << sig << "\";\n";
s << " obj[\"returnType\"] = \"" << lidlTypeToQt(md.returnType) << "\";\n";
s << " obj[\"isInvokable\"] = true;\n";
if (!md.params.empty()) {
s << " nlohmann::json params = nlohmann::json::array();\n";
for (const ParamDecl& pd : md.params) {
s << " params.push_back({{\"type\", \"" << lidlTypeToQt(pd.type)
<< "\"}, {\"name\", \"" << pd.name << "\"}});\n";
}
s << " obj[\"parameters\"] = params;\n";
}
s << " methods.push_back(obj);\n }\n";
}
for (const EventDecl& ed : module.events) {
s << " {\n nlohmann::json obj;\n";
s << " obj[\"type\"] = \"event\";\n";
s << " obj[\"name\"] = \"" << ed.name << "\";\n";
if (!ed.description.empty()) {
QString esc = qs(ed.description);
esc.replace('\\', "\\\\").replace('"', "\\\"").replace('\n', "\\n");
s << " obj[\"description\"] = \"" << esc << "\";\n";
}
QString sig = qs(ed.name) + "(";
for (int i = 0; i < ed.params.size(); ++i) {
sig += lidlTypeToQt(ed.params[i].type);
if (i + 1 < ed.params.size()) sig += ",";
}
sig += ")";
s << " obj[\"signature\"] = \"" << sig << "\";\n";
if (!ed.params.empty()) {
s << " nlohmann::json params = nlohmann::json::array();\n";
for (const ParamDecl& pd : ed.params) {
s << " params.push_back({{\"type\", \"" << lidlTypeToQt(pd.type)
<< "\"}, {\"name\", \"" << pd.name << "\"}});\n";
}
s << " obj[\"parameters\"] = params;\n";
}
s << " methods.push_back(obj);\n }\n";
}
s << " return methods;\n}\n\n";
}
} // namespace
bool lidlCdylibSupported(const ModuleDecl& module, QString* error)
{
for (const MethodDecl& md : module.methods) {
for (const ParamDecl& pd : md.params) {
if (!typeSupported(pd.type, /*isReturn=*/false)) {
if (error)
*error = QString("method '%1': parameter '%2' has a type outside the "
"cdylib-supported (Qt-free) subset")
.arg(qs(md.name), qs(pd.name));
return false;
}
}
// `void` is not a lidlBuiltinType, so the .lidl parser yields it as a
// Named type "void" (the impl-header parser writes "-> void"); an empty
// name is the in-memory void from the header path. Treat both as void.
const bool voidReturn =
md.returnType.name == "void"
|| (md.returnType.kind == TypeExpr::Primitive && md.returnType.name.empty());
if (!voidReturn && !md.jsonReturn && !md.resultReturn
&& !typeSupported(md.returnType, /*isReturn=*/true)) {
if (error)
*error = QString("method '%1': return type outside the cdylib-supported "
"(Qt-free) subset").arg(qs(md.name));
return false;
}
}
for (const EventDecl& ed : module.events) {
for (const ParamDecl& pd : ed.params) {
if (!typeSupported(pd.type, /*isReturn=*/false)) {
if (error)
*error = QString("event '%1': parameter '%2' has a type outside the "
"cdylib-supported (Qt-free) subset")
.arg(qs(ed.name), qs(pd.name));
return false;
}
}
}
return true;
}
QString lidlMakeModuleImplExports(const ModuleDecl& module,
const QString& implClass,
const QString& implHeader)
{
QString c;
QTextStream s(&c);
s << "// AUTO-GENERATED by logos-cpp-generator --cdylib -- do not edit\n";
s << "//\n";
s << "// The common module-impl C ABI exports (logos_module_impl.h) around the\n";
s << "// universal impl class `" << implClass << "`. Qt-FREE: compiled into the\n";
s << "// module's cdylib; the uniform Qt-plugin glue (or a future no-Qt host)\n";
s << "// drives it exclusively through these symbols.\n";
s << "#include \"" << implHeader << "\"\n";
s << "#include \"logos_module_impl.h\"\n";
s << "#include \"logos_protocol.h\"\n";
s << "#include \"logos_module_context.h\"\n";
s << "#include \"logos_result.h\"\n";
s << "#include <nlohmann/json.hpp>\n";
s << "#include <cstdlib>\n";
s << "#include <cstring>\n";
s << "#include <atomic>\n";
s << "#include <map>\n";
s << "#include <mutex>\n";
s << "#include <string>\n";
s << "#include <vector>\n";
// The Qt-free typed dependency surface: LogosModules (behind modules())
// built from this module's dependencies (metadata.json#dependencies),
// calling the lp_* C ABI — no Qt in the cdylib. The umbrella codegen
// emits logos_sdk.h for every cdylib module (empty when there are no
// dependencies), so this include is always available.
s << "#include \"logos_sdk.h\"\n";
s << "\n";
// -- shared statics ------------------------------------------------------
s << "namespace {\n\n";
s << implClass << "& lidlImpl()\n{\n static " << implClass << " impl;\n return impl;\n}\n\n";
s << "logos_module_emit_cb g_emitCb = nullptr;\n";
s << "void* g_emitUd = nullptr;\n";
s << "std::mutex g_emitMutex;\n";
s << "std::mutex g_ctxMutex;\n";
s << "bool g_ctxStored = false;\n";
s << "std::string g_ctxPath, g_ctxId, g_ctxPersist;\n";
s << "std::atomic<bool> g_hookFired{false};\n\n";
s << "char* lidlStrdup(const std::string& str)\n{\n";
s << " char* out = static_cast<char*>(std::malloc(str.size() + 1));\n";
s << " if (out) std::memcpy(out, str.data(), str.size() + 1);\n";
s << " return out;\n}\n\n";
s << "// Canonical tagged bytes form {\"_bytes\": base64url} (see logos_protocol.h)\n";
s << "std::string lidlB64UrlEncode(const std::vector<uint8_t>& bytes)\n{\n";
s << " static const char* alpha = \"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789-_\";\n";
s << " std::string out;\n";
s << " size_t i = 0;\n";
s << " while (i + 3 <= bytes.size()) {\n";
s << " uint32_t n = (uint32_t(bytes[i]) << 16) | (uint32_t(bytes[i+1]) << 8) | uint32_t(bytes[i+2]);\n";
s << " out += alpha[(n >> 18) & 0x3f]; out += alpha[(n >> 12) & 0x3f];\n";
s << " out += alpha[(n >> 6) & 0x3f]; out += alpha[n & 0x3f];\n";
s << " i += 3;\n }\n";
s << " if (i < bytes.size()) {\n";
s << " uint32_t n = uint32_t(bytes[i]) << 16;\n";
s << " if (i + 1 < bytes.size()) n |= uint32_t(bytes[i+1]) << 8;\n";
s << " out += alpha[(n >> 18) & 0x3f]; out += alpha[(n >> 12) & 0x3f];\n";
s << " if (i + 1 < bytes.size()) out += alpha[(n >> 6) & 0x3f];\n";
s << " }\n return out;\n}\n\n";
s << "int lidlB64Idx(char ch)\n{\n";
s << " if (ch >= 'A' && ch <= 'Z') return ch - 'A';\n";
s << " if (ch >= 'a' && ch <= 'z') return ch - 'a' + 26;\n";
s << " if (ch >= '0' && ch <= '9') return ch - '0' + 52;\n";
s << " if (ch == '-') return 62;\n if (ch == '_') return 63;\n return -1;\n}\n\n";
s << "std::vector<uint8_t> lidlBytesFromJson(const nlohmann::json& j)\n{\n";
s << " std::vector<uint8_t> out;\n";
s << " // Lenient bytes decode (matches the std path, where a QString or\n";
s << " // QByteArray arg both became bytes): a caller may send the tagged\n";
s << " // {\"_bytes\": base64url} form, a plain string (raw UTF-8 bytes), or\n";
s << " // an array of byte values. Only the tagged form needs base64.\n";
s << " if (j.is_string()) {\n";
s << " const std::string s = j.get<std::string>();\n";
s << " out.assign(s.begin(), s.end());\n";
s << " return out;\n";
s << " }\n";
s << " if (j.is_number()) {\n";
s << " // A number arg becomes its decimal text as bytes — matches\n";
s << " // Qt's QVariant(int)->QByteArray, so a caller (or the\n";
s << " // logoscore CLI's type auto-detection) passing a bare number\n";
s << " // to a bytes param behaves the same as the Qt path.\n";
s << " const std::string s = j.dump();\n";
s << " out.assign(s.begin(), s.end());\n";
s << " return out;\n";
s << " }\n";
s << " if (j.is_array()) {\n";
s << " for (const auto& e : j)\n";
s << " if (e.is_number_integer() || e.is_number_unsigned())\n";
s << " out.push_back(static_cast<uint8_t>(e.get<int64_t>() & 0xff));\n";
s << " return out;\n";
s << " }\n";
s << " if (!j.is_object() || j.size() != 1 || !j.contains(\"_bytes\") || !j[\"_bytes\"].is_string())\n";
s << " return out;\n";
s << " const std::string s64 = j[\"_bytes\"].get<std::string>();\n";
s << " size_t i = 0;\n";
s << " while (i + 4 <= s64.size()) {\n";
s << " int a = lidlB64Idx(s64[i]), b = lidlB64Idx(s64[i+1]), c2 = lidlB64Idx(s64[i+2]), d = lidlB64Idx(s64[i+3]);\n";
s << " if (a < 0 || b < 0 || c2 < 0 || d < 0) return {};\n";
s << " uint32_t n = (uint32_t(a) << 18) | (uint32_t(b) << 12) | (uint32_t(c2) << 6) | uint32_t(d);\n";
s << " out.push_back((n >> 16) & 0xff); out.push_back((n >> 8) & 0xff); out.push_back(n & 0xff);\n";
s << " i += 4;\n }\n";
s << " size_t rem = s64.size() - i;\n";
s << " if (rem == 2 || rem == 3) {\n";
s << " int a = lidlB64Idx(s64[i]), b = lidlB64Idx(s64[i+1]);\n";
s << " if (a < 0 || b < 0) return {};\n";
s << " uint32_t n = (uint32_t(a) << 18) | (uint32_t(b) << 12);\n";
s << " out.push_back((n >> 16) & 0xff);\n";
s << " if (rem == 3) {\n";
s << " int c2 = lidlB64Idx(s64[i+2]);\n";
s << " if (c2 < 0) return {};\n";
s << " n |= uint32_t(c2) << 6;\n";
s << " out.push_back((n >> 8) & 0xff);\n";
s << " }\n }\n return out;\n}\n\n";
s << "nlohmann::json lidlBytesToJson(const std::vector<uint8_t>& bytes)\n{\n";
s << " return nlohmann::json{{\"_bytes\", lidlB64UrlEncode(bytes)}};\n}\n\n";
s << "nlohmann::json lidlResultToJson(const StdLogosResult& r)\n{\n";
s << " nlohmann::json obj;\n";
s << " obj[\"success\"] = r.success;\n";
s << " obj[\"value\"] = r.value;\n";
s << " obj[\"error\"] = r.error.empty() ? nlohmann::json() : nlohmann::json(r.error);\n";
s << " return obj;\n}\n\n";
emitInterfaceJson(s, module);
s << "} // namespace\n\n";
// -- event wiring (install once, lazily) ---------------------------------
s << "static void lidlEnsureEmitWiring()\n{\n";
s << " static std::once_flag once;\n";
s << " std::call_once(once, []() {\n";
s << " _logos_codegen_::maybeSetEmitEvent(lidlImpl(),\n";
s << " [](const std::string& name, void* args) {\n";
s << " // cdylib events sidecar marshals into nlohmann::json\n";
s << " const nlohmann::json* payload = static_cast<const nlohmann::json*>(args);\n";
s << " std::lock_guard<std::mutex> lock(g_emitMutex);\n";
s << " if (g_emitCb) {\n";
s << " const std::string dumped = payload ? payload->dump() : \"[]\";\n";
s << " g_emitCb(name.c_str(), dumped.c_str(), g_emitUd);\n";
s << " }\n";
s << " });\n";
s << " });\n}\n\n";
// -- typed dependency surface (modules().<dep>...) -----------------------
// Wire modules() INDEPENDENTLY of the persistence context. Each dependency
// client bakes its target+origin at codegen time and creates its lp client
// lazily on first call, so modules() needs nothing from the context. A
// module with deps but no STORED context still must have it wired — gating
// it on the context latch (as it used to be) left m_logosModulesPtr null and
// segfaulted the first cross-module call when the daemon never delivered a
// context. No-op for impls that don't derive LogosModuleContext. Fired once
// from the FIRST lidlTryFireContext (i.e. the first dispatch / set_context /
// set_emit_callback), before the context-gated early return below.
s << "static void lidlEnsureModulesWired()\n{\n";
s << " static std::once_flag once;\n";
s << " std::call_once(once, []() {\n";
s << " _logos_codegen_::maybeSetLogosModules(lidlImpl(), new LogosModules());\n";
s << " });\n}\n\n";
// The context ready-latch: stamp the context + fire onContextReady ONCE,
// as soon as the module is fully wired (context stored AND the emit
// callback delivered) — at module load, before publication. Hosts that
// never wire an emit callback still get the hook before first dispatch
// (requireEmit = false fallback).
s << "static void lidlTryFireContext(bool requireEmit)\n{\n";
s << " lidlEnsureEmitWiring();\n";
s << " lidlEnsureModulesWired();\n";
s << " if (g_hookFired.load(std::memory_order_acquire)) return;\n";
s << " std::string path, id, persist;\n";
s << " {\n";
s << " std::lock_guard<std::mutex> lock(g_ctxMutex);\n";
s << " if (!g_ctxStored) return;\n";
s << " path = g_ctxPath; id = g_ctxId; persist = g_ctxPersist;\n";
s << " }\n";
s << " if (requireEmit) {\n";
s << " std::lock_guard<std::mutex> lock(g_emitMutex);\n";
s << " if (!g_emitCb) return;\n";
s << " }\n";
s << " g_hookFired.store(true, std::memory_order_release);\n";
// modules() was already wired by lidlEnsureModulesWired() above (before this
// context-gated early return), so onContextReady can safely call
// modules().<dep>... / subscribe to dependency events from the hook.
s << " _logos_codegen_::maybeSetContext(lidlImpl(), path, id, persist);\n";
s << "}\n\n";
// -- exports -------------------------------------------------------------
s << "extern \"C\" {\n\n";
s << "char* logos_module_dispatch(const char* method, const char* args_json)\n{\n";
s << " if (!method) return nullptr;\n";
s << " lidlTryFireContext(false);\n";
s << " nlohmann::json args = nlohmann::json::array();\n";
s << " if (args_json && *args_json) {\n";
s << " args = nlohmann::json::parse(args_json, nullptr, false);\n";
s << " if (args.is_discarded() || !args.is_array()) return nullptr;\n";
s << " }\n";
s << " const std::string m(method);\n";
s << " try {\n";
for (const MethodDecl& md : module.methods) {
s << " if (m == \"" << md.name << "\") {\n";
s << " if (args.size() < " << md.params.size() << ") return nullptr;\n";
QString call = "lidlImpl()." + qs(md.name) + "(";
for (int i = 0; i < md.params.size(); ++i) {
call += jsonArgToStd(md.params[i].type,
QString("args.at(%1)").arg(i));
if (i + 1 < md.params.size()) call += ", ";
}
call += ")";
// `void` parses as a Named type "void" from a .lidl (it isn't a
// lidlBuiltinType); empty name is the header path's in-memory void.
const bool voidReturn =
md.returnType.name == "void"
|| (md.returnType.kind == TypeExpr::Primitive && md.returnType.name.empty())
|| lidlTypeToQt(md.returnType) == "void";
if (voidReturn) {
s << " " << call << ";\n";
s << " return lidlStrdup(\"true\");\n";
} else {
s << " auto result = " << call << ";\n";
s << " return lidlStrdup(" << stdReturnToJson(md, "result") << ".dump());\n";
}
s << " }\n";
}
s << " } catch (const std::exception& e) {\n";
s << " nlohmann::json err{{\"code\", \"dispatch_failed\"}, {\"message\", e.what()},\n";
s << " {\"origin\", \"" << module.name << "\"}};\n";
s << " return lidlStrdup(err.dump());\n";
s << " }\n";
s << " return nullptr; // unknown method\n";
s << "}\n\n";
s << "char* logos_module_get_methods(void)\n{\n";
s << " return lidlStrdup(lidlInterfaceJson().dump());\n}\n\n";
s << "void logos_module_set_context(const char* module_path,\n";
s << " const char* instance_id,\n";
s << " const char* instance_persistence_path)\n{\n";
s << " {\n";
s << " std::lock_guard<std::mutex> lock(g_ctxMutex);\n";
s << " g_ctxPath = module_path ? module_path : \"\";\n";
s << " g_ctxId = instance_id ? instance_id : \"\";\n";
s << " g_ctxPersist = instance_persistence_path ? instance_persistence_path : \"\";\n";
s << " g_ctxStored = true;\n";
s << " }\n";
s << " lidlTryFireContext(true);\n";
s << "}\n\n";
s << "void logos_module_set_emit_callback(logos_module_emit_cb cb, void* user_data)\n{\n";
s << " {\n";
s << " std::lock_guard<std::mutex> lock(g_emitMutex);\n";
s << " g_emitCb = cb;\n";
s << " g_emitUd = user_data;\n";
s << " }\n";
s << " lidlTryFireContext(true);\n";
s << "}\n\n";
s << "int logos_module_accept_token(const char* module_name, const char* token)\n{\n";
s << " if (!module_name || !token) return -1;\n";
s << " // Seed the protocol's shared TokenManager so this module's OUTBOUND\n";
s << " // lp_client (modules().<dep>...) can authenticate calls. In\n";
s << " // particular the capability_module bootstrap token the host\n";
s << " // delivers at load lets the automatic requestModule flow fetch a\n";
s << " // per-target token on the first cross-module call. lp_token_save\n";
s << " // writes the same TokenManager::instance() the lp_client reads.\n";
s << " return lp_token_save(module_name, token);\n}\n\n";
s << "const char* logos_module_get_protocol_version(void)\n{\n";
s << " return LOGOS_PROTOCOL_VERSION_STRING;\n}\n\n";
s << "void logos_module_string_free(char* str)\n{\n";
s << " std::free(str);\n}\n\n";
s << "} // extern \"C\"\n";
return c;
}
QString lidlMakeEventsSourceCdylib(const ModuleDecl& module,
const QString& implClass,
const QString& implHeader)
{
QString c;
QTextStream s(&c);
s << "// AUTO-GENERATED by logos-cpp-generator --cdylib -- do not edit\n";
s << "// Typed `logos_events:` bodies, cdylib flavor: marshal into\n";
s << "// nlohmann::json and route through LogosModuleContext::emitEventImpl_\n";
s << "// (the export wrapper forwards to the host's emit callback).\n";
s << "#include \"" << implHeader << "\"\n";
s << "#include <nlohmann/json.hpp>\n\n";
for (const EventDecl& ed : module.events) {
s << "void " << implClass << "::" << ed.name << "(";
for (int i = 0; i < ed.params.size(); ++i) {
const QString stdType = lidlTypeToStd(ed.params[i].type);
if (stdType == "std::string" || stdType.startsWith("std::vector"))
s << "const " << stdType << "& " << ed.params[i].name;
else
s << stdType << " " << ed.params[i].name;
if (i + 1 < ed.params.size()) s << ", ";
}
s << ")\n{\n";
s << " nlohmann::json args = nlohmann::json::array();\n";
for (const ParamDecl& pd : ed.params) {
if (pd.type.kind == TypeExpr::Primitive && pd.type.name == "bstr")
s << " args.push_back(nlohmann::json{{\"_bytes\", \"\"}}); // bstr events: encode upstream\n";
else
s << " args.push_back(" << pd.name << ");\n";
}
s << " emitEventImpl_(\"" << ed.name << "\", &args);\n";
s << "}\n\n";
}
return c;
}