| paul@354 | 1 | /* Common operations for native functions. |
| paul@354 | 2 | |
| paul@849 | 3 | Copyright (C) 2016, 2017, 2018 Paul Boddie <paul@boddie.org.uk> |
| paul@354 | 4 | |
| paul@354 | 5 | This program is free software; you can redistribute it and/or modify it under |
| paul@354 | 6 | the terms of the GNU General Public License as published by the Free Software |
| paul@354 | 7 | Foundation; either version 3 of the License, or (at your option) any later |
| paul@354 | 8 | version. |
| paul@354 | 9 | |
| paul@354 | 10 | This program is distributed in the hope that it will be useful, but WITHOUT |
| paul@354 | 11 | ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS |
| paul@354 | 12 | FOR A PARTICULAR PURPOSE. See the GNU General Public License for more |
| paul@354 | 13 | details. |
| paul@354 | 14 | |
| paul@354 | 15 | You should have received a copy of the GNU General Public License along with |
| paul@354 | 16 | this program. If not, see <http://www.gnu.org/licenses/>. |
| paul@354 | 17 | */ |
| paul@354 | 18 | |
| paul@354 | 19 | #include "types.h" |
| paul@354 | 20 | #include "exceptions.h" |
| paul@354 | 21 | #include "ops.h" |
| paul@354 | 22 | #include "progconsts.h" |
| paul@354 | 23 | #include "progops.h" |
| paul@354 | 24 | #include "progtypes.h" |
| paul@354 | 25 | #include "main.h" |
| paul@354 | 26 | |
| paul@354 | 27 | /* Utility functions. */ |
| paul@354 | 28 | |
| paul@583 | 29 | __attr __new_str(char *s, int size) |
| paul@354 | 30 | { |
| paul@583 | 31 | /* Create a new string and mutate the __data__, __size__ and __key__ attributes. */ |
| paul@573 | 32 | __attr attr = __NEWINSTANCE(__builtins___str_string); |
| paul@849 | 33 | __store_via_object(__VALUE(attr), __data__, (__attr) {.strvalue=s}); |
| paul@849 | 34 | __store_via_object(__VALUE(attr), __size__, __INTVALUE(size)); |
| paul@849 | 35 | __store_via_object(__VALUE(attr), __key__, __NULL); |
| paul@354 | 36 | return attr; |
| paul@354 | 37 | } |
| paul@354 | 38 | |
| paul@354 | 39 | __attr __new_list(__fragment *f) |
| paul@354 | 40 | { |
| paul@354 | 41 | /* Create a new list and mutate the __data__ attribute. */ |
| paul@573 | 42 | __attr attr = __NEWINSTANCE(__builtins___list_list); |
| paul@849 | 43 | __store_via_object(__VALUE(attr), __data__, (__attr) {.seqvalue=f}); |
| paul@354 | 44 | return attr; |
| paul@354 | 45 | } |
| paul@354 | 46 | |
| paul@850 | 47 | __attr __new_float(double n) |
| paul@850 | 48 | { |
| paul@850 | 49 | /* Create a new float and set the trailing data. */ |
| paul@874 | 50 | __attr attr = __NEWINSTANCEIM(__builtins___float_float); |
| paul@850 | 51 | __set_trailing_data(attr, __builtins___float_float, n); |
| paul@850 | 52 | return attr; |
| paul@850 | 53 | } |
| paul@850 | 54 | |
| paul@664 | 55 | __fragment *__fragment_append(__fragment *data, __attr value) |
| paul@354 | 56 | { |
| paul@354 | 57 | __fragment *newdata = data; |
| paul@354 | 58 | unsigned int size = data->size, capacity = data->capacity; |
| paul@354 | 59 | unsigned int n; |
| paul@354 | 60 | |
| paul@354 | 61 | /* Re-allocate the fragment if the capacity has been reached. */ |
| paul@354 | 62 | if (size >= capacity) |
| paul@354 | 63 | { |
| paul@354 | 64 | /* NOTE: Consider various restrictions on capacity increases. */ |
| paul@354 | 65 | n = capacity ? capacity * 2 : 1; |
| paul@354 | 66 | newdata = (__fragment *) __REALLOCATE(data, __FRAGMENT_SIZE(n)); |
| paul@354 | 67 | newdata->capacity = n; |
| paul@354 | 68 | } |
| paul@354 | 69 | |
| paul@354 | 70 | /* Insert the new element and increment the list size. */ |
| paul@664 | 71 | newdata->attrs[size] = value; |
| paul@354 | 72 | newdata->size = size + 1; |
| paul@354 | 73 | |
| paul@354 | 74 | return newdata; |
| paul@354 | 75 | } |
