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state->sep = ',';
if (!render_any(state->rs, key))
return false;
if (!mbuf_write_byte(state->rs->dst, ':'))
return false;
return render_any(state->rs, val);
}
static bool render_dict(struct RenderState *rs, struct JsonValue *dict)
{
struct ElemWriterState state;
state.rs = rs;
state.sep = 0;
if (!mbuf_write_byte(rs->dst, '{'))
return false;
if (!json_dict_iter(dict, dict_elem_writer, &state))
return false;
if (!mbuf_write_byte(rs->dst, '}'))
return false;
return true;
}
static bool render_invalid(struct RenderState *rs, struct JsonValue *jv)
{
return false;
}
/*
* Public api
*/
static bool render_any(struct RenderState *rs, struct JsonValue *jv)
{
static const render_func_t rfunc_map[] = {
render_invalid, render_null, render_bool, render_int,
render_float, render_string, render_list, render_dict,
};
return rfunc_map[get_type(jv)](rs, jv);
}
bool json_render(struct MBuf *dst, struct JsonValue *jv)
{
struct RenderState rs;
rs.dst = dst;
rs.options = 0;
return render_any(&rs, jv);
}
/*
* Examine single value
*/
enum JsonValueType json_value_type(struct JsonValue *jv)
{
return get_type(jv);
}
size_t json_value_size(struct JsonValue *jv)
{
if (has_type(jv, JSON_STRING) ||
has_type(jv, JSON_LIST) ||
has_type(jv, JSON_DICT))
return jv->u.v_size;
return 0;
}
bool json_value_as_bool(struct JsonValue *jv, bool *dst_p)
{
if (!has_type(jv, JSON_BOOL))
return false;
*dst_p = jv->u.v_bool;
return true;
}
bool json_value_as_int(struct JsonValue *jv, int64_t *dst_p)
{
if (!has_type(jv, JSON_INT))
return false;
*dst_p = jv->u.v_int;
return true;
}
bool json_value_as_float(struct JsonValue *jv, double *dst_p)
{
if (!has_type(jv, JSON_FLOAT)) {
if (has_type(jv, JSON_INT)) {
*dst_p = jv->u.v_int;
return true;
}
return false;
}
*dst_p = jv->u.v_float;
return true;
}