diff options
Diffstat (limited to 'builtin.c')
| -rw-r--r-- | builtin.c | 20 |
1 files changed, 20 insertions, 0 deletions
@@ -90,6 +90,25 @@ static void f_divide(jv input[], jv output[]) { } } +static void f_add(jv input[], jv output[]) { + jv array = input[0]; + if (jv_get_kind(array) != JV_KIND_ARRAY) { + output[0] = jv_invalid_with_msg(jv_string_fmt("Cannot add elements of an %s", + jv_kind_name(jv_get_kind(array)))); + } else if (jv_array_length(jv_copy(array)) == 0) { + output[0] = jv_null(); + } else { + jv sum = jv_array_get(jv_copy(array), 0); + for (int i = 1; i < jv_array_length(jv_copy(array)); i++) { + jv x = jv_array_get(jv_copy(array), i); + jv add_args[] = {jv_null(), x, sum}; + f_plus(add_args, &sum); + } + output[0] = sum; + } + jv_free(array); +} + static void f_equal(jv input[], jv output[]) { jv_free(input[0]); output[0] = jv_bool(jv_equal(input[2], input[1])); @@ -185,6 +204,7 @@ static struct cfunction function_list[] = { {f_equal, "_equal", CALL_BUILTIN_3_1}, {f_length, "length", CALL_BUILTIN_1_1}, {f_type, "type", CALL_BUILTIN_1_1}, + {f_add, "add", CALL_BUILTIN_1_1}, }; static struct symbol_table cbuiltins = {function_list, sizeof(function_list)/sizeof(function_list[0])}; |