json: teach json_build() to build arrays from C arrays of JsonVariant

2019-12-02 09:47:00 +01:00
parent a42ef715a2
commit e4defdc4b0
2 changed files with 32 additions and 0 deletions
@@ -3377,6 +3377,36 @@ int json_buildv(JsonVariant **ret, va_list ap) {

                        break;

+                case _JSON_BUILD_VARIANT_ARRAY: {
+                        JsonVariant **array;
+                        size_t n;
+
+                        if (!IN_SET(current->expect, EXPECT_TOPLEVEL, EXPECT_OBJECT_VALUE, EXPECT_ARRAY_ELEMENT)) {
+                                r = -EINVAL;
+                                goto finish;
+                        }
+
+                        array = va_arg(ap, JsonVariant**);
+                        n = va_arg(ap, size_t);
+
+                        if (current->n_suppress == 0) {
+                                r = json_variant_new_array(&add, array, n);
+                                if (r < 0)
+                                        goto finish;
+                        }
+
+                        n_subtract = 1;
+
+                        if (current->expect == EXPECT_TOPLEVEL)
+                                current->expect = EXPECT_END;
+                        else if (current->expect == EXPECT_OBJECT_VALUE)
+                                current->expect = EXPECT_OBJECT_KEY;
+                        else
+                                assert(current->expect == EXPECT_ARRAY_ELEMENT);
+
+                        break;
+                }
+
                case _JSON_BUILD_LITERAL: {
                        const char *l;