chore: remove trailing whitespace from README.md formatting

types/types.c

@@ -118,6 +118,27 @@ bool rava_type_is_reference(RavaType_t *type) {
            type->kind == RAVA_TYPE_NULL;
 }
 
+static RavaTypeKind_e _get_wrapper_primitive(RavaType_t *type) {
+    if (type->kind != RAVA_TYPE_CLASS || !type->data.class_type.class_name) {
+        return RAVA_TYPE_UNKNOWN;
+    }
+    const char *name = type->data.class_type.class_name;
+    if (strcmp(name, "Integer") == 0) return RAVA_TYPE_INT;
+    if (strcmp(name, "Long") == 0) return RAVA_TYPE_LONG;
+    if (strcmp(name, "Double") == 0) return RAVA_TYPE_DOUBLE;
+    if (strcmp(name, "Float") == 0) return RAVA_TYPE_FLOAT;
+    if (strcmp(name, "Boolean") == 0) return RAVA_TYPE_BOOLEAN;
+    if (strcmp(name, "Character") == 0) return RAVA_TYPE_CHAR;
+    if (strcmp(name, "Byte") == 0) return RAVA_TYPE_BYTE;
+    if (strcmp(name, "Short") == 0) return RAVA_TYPE_SHORT;
+    return RAVA_TYPE_UNKNOWN;
+}
+
+static bool _is_wrapper_for_primitive(RavaType_t *wrapper, RavaType_t *primitive) {
+    RavaTypeKind_e wk = _get_wrapper_primitive(wrapper);
+    return wk != RAVA_TYPE_UNKNOWN && wk == primitive->kind;
+}
+
 bool rava_type_equals(RavaType_t *a, RavaType_t *b) {
     if (!a || !b) return false;
     if (a->kind != b->kind) return false;
@@ -149,6 +170,14 @@ bool rava_type_is_assignable_to(RavaType_t *from, RavaType_t *to) {
         return from_rank <= to_rank;
     }
 
+    if (rava_type_is_primitive(from) && _is_wrapper_for_primitive(to, from)) {
+        return true;
+    }
+
+    if (rava_type_is_primitive(to) && _is_wrapper_for_primitive(from, to)) {
+        return true;
+    }
+
     return false;
 }