1 /* Common operations for native functions. 2 3 Copyright (C) 2016, 2017, 2018, 2021 Paul Boddie <paul@boddie.org.uk> 4 5 This program is free software; you can redistribute it and/or modify it under 6 the terms of the GNU General Public License as published by the Free Software 7 Foundation; either version 3 of the License, or (at your option) any later 8 version. 9 10 This program is distributed in the hope that it will be useful, but WITHOUT 11 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS 12 FOR A PARTICULAR PURPOSE. See the GNU General Public License for more 13 details. 14 15 You should have received a copy of the GNU General Public License along with 16 this program. If not, see <http://www.gnu.org/licenses/>. 17 */ 18 19 #include "types.h" 20 #include "exceptions.h" 21 #include "ops.h" 22 #include "progconsts.h" 23 #include "progops.h" 24 #include "progtypes.h" 25 #include "main.h" 26 27 /* Utility functions. */ 28 29 __attr __new_int(__int n) 30 { 31 /* Create a new int and set the trailing data. */ 32 __attr attr = __NEWINSTANCE_STACK(__builtins___int_int); 33 __set_trailing_data(attr, __builtins___int_int, n); 34 return __TO_MUTABLE(attr); 35 } 36 37 __attr __new_str(char *s, __int size) 38 { 39 /* Create a new string and mutate the __data__, __size__ and __key__ attributes. */ 40 __attr attr = __NEWINSTANCE(__builtins___str_str); 41 __store_via_object_internal(__VALUE(attr), __data__, (__attr) {.strvalue=s}); 42 __store_via_object_internal(__VALUE(attr), __size__, (__attr) {.sizevalue=size}); 43 __store_via_object_internal(__VALUE(attr), __key__, __NULL); 44 return attr; 45 } 46 47 __attr __new_list(__fragment *f) 48 { 49 /* Create a new list and mutate the __data__ attribute. */ 50 __attr attr = __NEWINSTANCE(__builtins___list_list); 51 __store_via_object_internal(__VALUE(attr), __data__, (__attr) {.seqvalue=f}); 52 return attr; 53 } 54 55 __attr __new_float(__float n) 56 { 57 /* Create a new float and set the trailing data. */ 58 __attr attr = __NEWINSTANCE_STACK(__builtins___float_float); 59 __set_trailing_data(attr, __builtins___float_float, n); 60 return __TO_MUTABLE(attr); 61 } 62 63 __fragment *__fragment_append(__fragment *data, __attr value) 64 { 65 __fragment *newdata = data; 66 __int size = data->size, capacity = data->capacity; 67 __int n; 68 69 /* Re-allocate the fragment if the capacity has been reached. */ 70 if (size >= capacity) 71 { 72 /* NOTE: Consider various restrictions on capacity increases. */ 73 n = capacity * 2 > size ? capacity * 2 : size + 1; 74 newdata = (__fragment *) __REALLOCATE(data, __FRAGMENT_SIZE(n)); 75 newdata->capacity = n; 76 } 77 78 /* Insert the new element and increment the list size. */ 79 newdata->attrs[size] = __RAWVALUE(0); 80 __store_target(&newdata->attrs[size], value); 81 newdata->size = size + 1; 82 83 return newdata; 84 }