Lichen

templates/native/list.c

932:c07b0dd14f85
10 months ago Paul Boddie Moved integer instantiation support to library functions.
     1 /* Native functions for list operations.     2      3 Copyright (C) 2016, 2017 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 "native/common.h"    20 #include "types.h"    21 #include "exceptions.h"    22 #include "ops.h"    23 #include "progconsts.h"    24 #include "progops.h"    25 #include "progtypes.h"    26 #include "main.h"    27     28 /* List operations. */    29     30 __attr __fn_native_list_list_init(__attr __self, __attr size)    31 {    32     /* size interpreted as int */    33     unsigned int n = __TOINT(size);    34     __attr attr = {.seqvalue=__new_fragment(n)};    35     36     /* Return the __data__ attribute. */    37     return attr;    38 }    39     40 __attr __fn_native_list_list_setsize(__attr __self, __attr _data, __attr size)    41 {    42     /* _data interpreted as list.__data__ */    43     __fragment *data = _data.seqvalue;    44     /* size interpreted as int */    45     unsigned int n = __TOINT(size);    46     47     data->size = n;    48     return __builtins___none_None;    49 }    50     51 __attr __fn_native_list_list_append(__attr __self, __attr self, __attr value)    52 {    53     /* self.__data__ interpreted as list */    54     __fragment *data = __load_via_object(__VALUE(self), __data__).seqvalue;    55     __fragment *newdata = __fragment_append(data, value);    56     57     /* Replace the __data__ attribute if appropriate. */    58     if (newdata != data)    59         __store_via_object(__VALUE(self), __data__, ((__attr) {.seqvalue=newdata}));    60     return __builtins___none_None;    61 }    62     63 __attr __fn_native_list_list_concat(__attr __self, __attr self, __attr other)    64 {    65     /* self, interpreted as list, other interpreted as list.__data__ */    66     __fragment *data = __load_via_object(__VALUE(self), __data__).seqvalue;    67     __fragment *other_data = other.seqvalue;    68     __fragment *newdata = data;    69     unsigned int size = data->size, capacity = data->capacity;    70     unsigned int other_size = other_data->size;    71     unsigned int i, j, n = size + other_size;    72     73     /* Re-allocate the fragment if the capacity has been reached. */    74     if (n >= capacity)    75     {    76         newdata = (__fragment *) __REALLOCATE(data, __FRAGMENT_SIZE(n));    77         newdata->capacity = n;    78     }    79     80     /* Copy the elements from the other list and increment the list size. */    81     for (i = size, j = 0; j < other_size; i++, j++)    82         newdata->attrs[i] = other_data->attrs[j];    83     newdata->size = n;    84     85     /* Replace the __data__ attribute if appropriate. */    86     if (newdata != data)    87         __store_via_object(__VALUE(self), __data__, ((__attr) {.seqvalue=newdata}));    88     return __builtins___none_None;    89 }    90     91 __attr __fn_native_list_list_len(__attr self, __attr _data)    92 {    93     /* _data interpreted as list.__data__ */    94     unsigned int size = _data.seqvalue->size;    95     96     /* Return the new integer. */    97     return __new_int(size);    98 }    99    100 __attr __fn_native_list_list_nonempty(__attr __self, __attr _data)   101 {   102     return _data.seqvalue->size ? __builtins___boolean_True : __builtins___boolean_False;   103 }   104    105 __attr __fn_native_list_list_element(__attr __self, __attr _data, __attr index)   106 {   107     /* _data interpreted as list.__data__ */   108     __attr *elements = _data.seqvalue->attrs;   109     /* index interpreted as int */   110     int i = __TOINT(index);   111    112     return elements[i];   113 }   114    115 __attr __fn_native_list_list_setelement(__attr __self, __attr _data, __attr index, __attr value)   116 {   117     /* _data interpreted as list.__data__ */   118     __attr *elements = _data.seqvalue->attrs;   119     /* index interpreted as int */   120     int i = __TOINT(index);   121    122     /* Set the element. */   123     elements[i] = value;   124     return __builtins___none_None;   125 }   126    127 /* Module initialisation. */   128    129 void __main_native_list()   130 {   131 }