Implement variant type

[libside.git] / src / tracer.c

diff --git a/src/tracer.c b/src/tracer.c
index 8dd938807912af54f86fe2bb00b805e1b900795f..32e49697976a2411e6b2e8bbc1772cfc530b9fdf 100644 (file)
--- a/src/tracer.c
+++ b/src/tracer.c
@@ -30,6 +30,8 @@ static struct side_tracer_handle *tracer_handle;
 static
 void tracer_print_struct(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
 static
+void tracer_print_variant(const struct side_type *type_desc, const struct side_arg_variant *side_arg_variant);
+static
 void tracer_print_array(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
 static
 void tracer_print_vla(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec);
@@ -951,6 +953,9 @@ void tracer_print_type(const struct side_type *type_desc, const struct side_arg
        case SIDE_TYPE_STRUCT:
                tracer_print_struct(type_desc, item->u.side_static.side_struct);
                break;
+       case SIDE_TYPE_VARIANT:
+               tracer_print_variant(type_desc, item->u.side_static.side_variant);
+               break;
        case SIDE_TYPE_ARRAY:
                tracer_print_array(type_desc, item->u.side_static.side_array);
                break;
@@ -1058,6 +1063,46 @@ void tracer_print_struct(const struct side_type *type_desc, const struct side_ar
        printf(" }");
 }
 
+static
+void tracer_print_variant(const struct side_type *type_desc, const struct side_arg_variant *side_arg_variant)
+{
+       const struct side_type_variant *side_type_variant = type_desc->u.side_variant;
+       const struct side_type *selector_type = &side_type_variant->selector;
+       union int64_value v64;
+       uint32_t i;
+
+       if (selector_type->type != side_arg_variant->selector.type) {
+               fprintf(stderr, "ERROR: Unexpected variant selector type\n");
+               abort();
+       }
+       switch (selector_type->type) {
+       case SIDE_TYPE_U8:
+       case SIDE_TYPE_U16:
+       case SIDE_TYPE_U32:
+       case SIDE_TYPE_U64:
+       case SIDE_TYPE_S8:
+       case SIDE_TYPE_S16:
+       case SIDE_TYPE_S32:
+       case SIDE_TYPE_S64:
+               break;
+       default:
+               fprintf(stderr, "ERROR: Expecting integer variant selector type\n");
+               abort();
+       }
+       v64 = tracer_load_integer_value(&selector_type->u.side_integer,
+                       &side_arg_variant->selector.u.side_static.integer_value, 0, NULL);
+       for (i = 0; i < side_type_variant->nr_options; i++) {
+               const struct side_variant_option *option = &side_type_variant->options[i];
+
+               if (v64.s >= option->range_begin && v64.s <= option->range_end) {
+                       tracer_print_type(&option->side_type, &side_arg_variant->option);
+                       return;
+               }
+       }
+       fprintf(stderr, "ERROR: Variant selector value unknown %" PRId64 "\n", v64.s);
+       abort();
+}
+
 static
 void tracer_print_array(const struct side_type *type_desc, const struct side_arg_vec *side_arg_vec)
 {