62 lines
1.9 KiB
C
62 lines
1.9 KiB
C
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#pragma once
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#include <functional>
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#include <map>
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#include <nlohmann/json.hpp>
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#include <string>
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namespace whetstone {
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class DAPProxyServer {
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public:
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using Handler = std::function<nlohmann::json(const nlohmann::json& args)>;
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DAPProxyServer() {
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auto empty = [](const nlohmann::json&) -> nlohmann::json { return nlohmann::json::object(); };
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for (const auto& cmd : {"initialize","launch","attach","setBreakpoints",
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"stackTrace","scopes","variables","continue",
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"next","stepIn","stepOut","disconnect"})
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handlers_[cmd] = empty;
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}
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nlohmann::json handle(const nlohmann::json& msg) {
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if (!msg.contains("type")) return {};
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std::string type = msg["type"].get<std::string>();
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// Events: no response
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if (type == "event") return {};
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// Requests
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if (type == "request") {
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std::string command = msg.value("command", "");
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int reqSeq = msg.value("seq", 0);
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nlohmann::json args = msg.contains("arguments") ? msg["arguments"]
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: nlohmann::json::object();
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nlohmann::json body = nlohmann::json::object();
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auto it = handlers_.find(command);
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if (it != handlers_.end()) body = it->second(args);
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return {
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{"seq", ++seq_},
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{"type", "response"},
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{"request_seq", reqSeq},
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{"command", command},
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{"success", true},
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{"body", body}
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};
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}
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return {};
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}
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void registerHandler(const std::string& command, Handler h) {
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handlers_[command] = std::move(h);
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}
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private:
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std::map<std::string, Handler> handlers_;
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int seq_ = 0;
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};
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} // namespace whetstone
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