More lsp support

This makes the LSP support complete for now:

- Completion
- Diagnostics
- Goto implementation/declaration
- Rename
- Documentation
- Find references

1 files changed, 58 insertions, 0 deletions

diff --git a/src/dged/jsonrpc.h b/src/dged/jsonrpc.h
new file mode 100644
index 0000000..2ac2787
--- /dev/null
+++ b/src/dged/jsonrpc.h
@@ -0,0 +1,58 @@
+#ifndef _JSONRPC_H
+#define _JSONRPC_H
+
+#include <stdint.h>
+
+#include "json.h"
+#include "s8.h"
+
+enum jsonrpc_type {
+  Jsonrpc_Request,
+  Jsonrpc_Response,
+  Jsonrpc_Notification,
+};
+
+struct jsonrpc_request {
+  struct json_value id;
+  struct s8 method;
+  struct json_value params;
+};
+
+struct jsonrpc_error {
+  int code;
+  struct s8 message;
+  struct json_value data;
+};
+
+struct jsonrpc_notification {
+  struct s8 method;
+  struct json_value params;
+};
+
+struct jsonrpc_response {
+  struct json_value id;
+  bool ok;
+  union jsonrpc_value {
+    struct json_value result;
+    struct jsonrpc_error error;
+  } value;
+};
+
+struct jsonrpc_message {
+  enum jsonrpc_type type;
+  union jsonrpc_msg {
+    struct jsonrpc_request request;
+    struct jsonrpc_response response;
+    struct jsonrpc_notification notification;
+  } message;
+
+  struct json_value document;
+};
+
+struct jsonrpc_message jsonrpc_parse(const uint8_t *buf, uint64_t size);
+struct s8 jsonrpc_format_request(struct json_value id, struct s8 method,
+                                 struct s8 params);
+struct s8 jsonrpc_format_response(struct json_value id, struct s8 result);
+struct s8 jsonrpc_format_notification(struct s8 method, struct s8 params);
+
+#endif