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IPCCompiler: Generate endpoint and message classes

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These are not entirely finished but it's starting to take shape. :^)
This commit is contained in:
Andreas Kling 2019-08-03 15:50:16 +02:00
parent a40e763b2a
commit 016335edde
1 changed files with 74 additions and 1 deletions
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75
DevTools/IPCCompiler/main.cpp
View file

@ -1,3 +1,4 @@
#include <AK/BufferStream.h>
#include <AK/StringBuilder.h>
#include <LibCore/CFile.h>
#include <ctype.h>
@ -85,7 +86,7 @@ int main(int argc, char** argv)
break;
parameter.type = extract_while([](char ch) { return !isspace(ch); });
consume_whitespace();
parameter.name = extract_while([](char ch) { return !isspace(ch) && ch != ')'; });
parameter.name = extract_while([](char ch) { return !isspace(ch) && ch != ',' && ch != ')'; });
consume_whitespace();
storage.append(move(parameter));
if (peek() == ',') {
@ -172,6 +173,77 @@ int main(int argc, char** argv)
while (index < file_contents.size())
parse_endpoint();
dbg() << "#include <AK/BufferStream.h>";
dbg() << "#include <LibIPC/IEndpoint.h>";
dbg() << "#include <LibIPC/IMessage.h>";
dbg();
for (auto& endpoint : endpoints) {
dbg() << "namespace " << endpoint.name << " {";
dbg();
auto do_message = [&](const String& name, const Vector<Parameter>& parameters) {
dbg() << "class " << name << " final : public IMessage {";
dbg() << "public:";
dbg() << " virtual ~" << name << "() override {}";
dbg() << " virtual ByteBuffer encode() override";
dbg() << " {";
if (parameters.is_empty()) {
dbg() << " return {};";
} else {
// FIXME: Support longer messages:
dbg() << " auto buffer = ByteBuffer::create_uninitialized(1024);";
dbg() << " BufferStream stream(buffer);";
for (auto& parameter : parameters) {
dbg() << " stream << m_" << parameter.name << ";";
}
dbg() << " stream.snip();";
dbg() << " return buffer;";
}
dbg() << " }";
dbg() << "private:";
for (auto& parameter : parameters) {
dbg() << " " << parameter.type << " m_" << parameter.name << ";";
}
dbg() << "};";
dbg();
};
for (auto& message : endpoint.messages) {
if (message.is_synchronous) {
StringBuilder builder;
builder.append(message.name);
builder.append("Response");
do_message(builder.to_string(), message.outputs);
}
do_message(message.name, message.inputs);
}
dbg() << "} // namespace " << endpoint.name;
dbg();
dbg() << "class " << endpoint.name << "Endpoint final : public IEndpoint {";
dbg() << "public:";
dbg() << " " << endpoint.name << "Endpoint() {}";
dbg() << " virtual ~" << endpoint.name << "Endpoint() override {}";
dbg();
for (auto& message : endpoint.messages) {
String return_type = "void";
if (message.is_synchronous) {
StringBuilder builder;
builder.append(endpoint.name);
builder.append("::");
builder.append(message.name);
builder.append("Response");
return_type = builder.to_string();
}
dbg() << " " << return_type << " handle(const " << endpoint.name << "::" << message.name << "&);";
}
dbg() << "private:";
dbg() << "};";
}
#ifdef DEBUG
for (auto& endpoint : endpoints) {
dbg() << "Endpoint: '" << endpoint.name << "'";
for (auto& message : endpoint.messages) {
@ -191,6 +263,7 @@ int main(int argc, char** argv)
}
}
}
#endif
return 0;
}