lsp_jsonrpc.h

/*
 * lsp_jsonrpc.h - JSON-RPC 2.0 message framing for LSP
 *
 * Handles Content-Length header-based framing on stdin/stdout
 * and lightweight JSON object access for LSP messages.
 */
 
#ifndef LSP_JSONRPC_H
#define LSP_JSONRPC_H
 
#include "utils/sstr.h"
#include <stdio.h>
 
/* Simple JSON value representation for LSP messages. */
enum lsp_json_type {
    LSP_JSON_NULL,
    LSP_JSON_BOOL,
    LSP_JSON_NUMBER,
    LSP_JSON_STRING,
    LSP_JSON_ARRAY,
    LSP_JSON_OBJECT
};
 
struct lsp_json_value {
    enum lsp_json_type type;
    union {
        int bool_val;
        long number_val;
        sstr_t string_val;
        struct {
            struct lsp_json_value *items;
            int count;
        } array;
        struct {
            char **keys;
            struct lsp_json_value *values;
            int count;
        } object;
    } u;
};
 
sstr_t lsp_jsonrpc_read(FILE *in);
 
void lsp_jsonrpc_write(FILE *out, sstr_t json_body);
 
int lsp_json_parse(const char *json, int len, struct lsp_json_value *out);
 
void lsp_json_free(struct lsp_json_value *val);
 
struct lsp_json_value *lsp_json_get(struct lsp_json_value *val, const char *key);
 
const char *lsp_json_string(struct lsp_json_value *val);
 
long lsp_json_number(struct lsp_json_value *val);
 
sstr_t lsp_jsonrpc_response(long id, const char *result_json);
 
sstr_t lsp_jsonrpc_notification(const char *method, const char *params_json);
 
void lsp_json_escape_string(const char *s, sstr_t out);
 
#endif /* LSP_JSONRPC_H */