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36 results

flash-all.gdb

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  • Forked from card10 / firmware
    Source project has a limited visibility.
    objlist.c 15.02 KiB
    #include <string.h>
    #include <assert.h>
    
    #include "nlr.h"
    #include "misc.h"
    #include "mpconfig.h"
    #include "qstr.h"
    #include "obj.h"
    #include "runtime0.h"
    #include "runtime.h"
    #include "objlist.h"
    
    STATIC mp_obj_t mp_obj_new_list_iterator(mp_obj_list_t *list, int cur);
    STATIC mp_obj_list_t *list_new(uint n);
    STATIC mp_obj_t list_extend(mp_obj_t self_in, mp_obj_t arg_in);
    STATIC mp_obj_t list_pop(uint n_args, const mp_obj_t *args);
    
    // TODO: Move to mpconfig.h
    #define LIST_MIN_ALLOC 4
    
    /******************************************************************************/
    /* list                                                                       */
    
    STATIC void list_print(void (*print)(void *env, const char *fmt, ...), void *env, mp_obj_t o_in, mp_print_kind_t kind) {
        mp_obj_list_t *o = o_in;
        print(env, "[");
        for (int i = 0; i < o->len; i++) {
            if (i > 0) {
                print(env, ", ");
            }
            mp_obj_print_helper(print, env, o->items[i], PRINT_REPR);
        }
        print(env, "]");
    }
    
    STATIC mp_obj_t list_extend_from_iter(mp_obj_t list, mp_obj_t iterable) {
        mp_obj_t iter = mp_getiter(iterable);
        mp_obj_t item;
        while ((item = mp_iternext(iter)) != MP_OBJ_STOP_ITERATION) {
            mp_obj_list_append(list, item);
        }
        return list;
    }
    
    STATIC mp_obj_t list_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
        // TODO check n_kw == 0
    
        switch (n_args) {
            case 0:
                // return a new, empty list
                return mp_obj_new_list(0, NULL);
    
            case 1:
            {
                // make list from iterable
                // TODO: optimize list/tuple
                mp_obj_t list = mp_obj_new_list(0, NULL);
                return list_extend_from_iter(list, args[0]);
            }
    
            default:
                nlr_raise(mp_obj_new_exception_msg_varg(&mp_type_TypeError, "list takes at most 1 argument, %d given", n_args));
        }
        return NULL;
    }
    
    // Don't pass MP_BINARY_OP_NOT_EQUAL here
    STATIC bool list_cmp_helper(int op, mp_obj_t self_in, mp_obj_t another_in) {
        assert(MP_OBJ_IS_TYPE(self_in, &mp_type_list));
        if (!MP_OBJ_IS_TYPE(another_in, &mp_type_list)) {
            return false;
        }
        mp_obj_list_t *self = self_in;
        mp_obj_list_t *another = another_in;
    
        return mp_seq_cmp_objs(op, self->items, self->len, another->items, another->len);
    }
    
    STATIC mp_obj_t list_unary_op(int op, mp_obj_t self_in) {
        mp_obj_list_t *self = self_in;
        switch (op) {
            case MP_UNARY_OP_BOOL: return MP_BOOL(self->len != 0);
            case MP_UNARY_OP_LEN: return MP_OBJ_NEW_SMALL_INT(self->len);
            default: return MP_OBJ_NOT_SUPPORTED;
        }
    }
    
    STATIC mp_obj_t list_binary_op(int op, mp_obj_t lhs, mp_obj_t rhs) {
        mp_obj_list_t *o = lhs;
        switch (op) {
            case MP_BINARY_OP_ADD: {
                if (!MP_OBJ_IS_TYPE(rhs, &mp_type_list)) {
                    return NULL;
                }
                mp_obj_list_t *p = rhs;
                mp_obj_list_t *s = list_new(o->len + p->len);
                m_seq_cat(s->items, o->items, o->len, p->items, p->len, mp_obj_t);
                return s;
            }
            case MP_BINARY_OP_INPLACE_ADD: {
                if (!MP_OBJ_IS_TYPE(rhs, &mp_type_list)) {
                    return NULL;
                }
                list_extend(lhs, rhs);
                return o;
            }
            case MP_BINARY_OP_MULTIPLY: {
                machine_int_t n;
                if (!mp_obj_get_int_maybe(rhs, &n)) {
                    return NULL;
                }
                mp_obj_list_t *s = list_new(o->len * n);
                mp_seq_multiply(o->items, sizeof(*o->items), o->len, n, s->items);
                return s;
            }
            case MP_BINARY_OP_EQUAL:
            case MP_BINARY_OP_LESS:
            case MP_BINARY_OP_LESS_EQUAL:
            case MP_BINARY_OP_MORE:
            case MP_BINARY_OP_MORE_EQUAL:
                return MP_BOOL(list_cmp_helper(op, lhs, rhs));
    
            default:
                return MP_OBJ_NOT_SUPPORTED;
        }
    }
    
    STATIC mp_obj_t list_subscr(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
        if (value == MP_OBJ_NULL) {
            // delete
            mp_obj_t args[2] = {self_in, index};
            list_pop(2, args);
            return mp_const_none;
        } else if (value == MP_OBJ_SENTINEL) {
            // load
            mp_obj_list_t *self = self_in;
    #if MICROPY_ENABLE_SLICE
            if (MP_OBJ_IS_TYPE(index, &mp_type_slice)) {
                machine_uint_t start, stop;
                if (!m_seq_get_fast_slice_indexes(self->len, index, &start, &stop)) {
                    assert(0);
                }
                mp_obj_list_t *res = list_new(stop - start);
                m_seq_copy(res->items, self->items + start, res->len, mp_obj_t);
                return res;
            }
    #endif
            uint index_val = mp_get_index(self->base.type, self->len, index, false);
            return self->items[index_val];
        } else {
            mp_obj_list_store(self_in, index, value);
            return mp_const_none;
        }
    }
    
    STATIC mp_obj_t list_getiter(mp_obj_t o_in) {
        return mp_obj_new_list_iterator(o_in, 0);
    }
    
    mp_obj_t mp_obj_list_append(mp_obj_t self_in, mp_obj_t arg) {
        assert(MP_OBJ_IS_TYPE(self_in, &mp_type_list));
        mp_obj_list_t *self = self_in;
        if (self->len >= self->alloc) {
            self->items = m_renew(mp_obj_t, self->items, self->alloc, self->alloc * 2);
            self->alloc *= 2;
            mp_seq_clear(self->items, self->len + 1, self->alloc, sizeof(*self->items));
        }
        self->items[self->len++] = arg;
        return mp_const_none; // return None, as per CPython
    }
    
    STATIC mp_obj_t list_extend(mp_obj_t self_in, mp_obj_t arg_in) {
        assert(MP_OBJ_IS_TYPE(self_in, &mp_type_list));
        if (MP_OBJ_IS_TYPE(arg_in, &mp_type_list)) {
            mp_obj_list_t *self = self_in;
            mp_obj_list_t *arg = arg_in;
    
            if (self->len + arg->len > self->alloc) {
                // TODO: use alloc policy for "4"
                self->items = m_renew(mp_obj_t, self->items, self->alloc, self->len + arg->len + 4);
                self->alloc = self->len + arg->len + 4;
                mp_seq_clear(self->items, self->len + arg->len, self->alloc, sizeof(*self->items));
            }
    
            memcpy(self->items + self->len, arg->items, sizeof(mp_obj_t) * arg->len);
            self->len += arg->len;
        } else {
            list_extend_from_iter(self_in, arg_in);
        }
        return mp_const_none; // return None, as per CPython
    }
    
    STATIC mp_obj_t list_pop(uint n_args, const mp_obj_t *args) {
        assert(1 <= n_args && n_args <= 2);
        assert(MP_OBJ_IS_TYPE(args[0], &mp_type_list));
        mp_obj_list_t *self = args[0];
        if (self->len == 0) {
            nlr_raise(mp_obj_new_exception_msg(&mp_type_IndexError, "pop from empty list"));
        }
        uint index = mp_get_index(self->base.type, self->len, n_args == 1 ? MP_OBJ_NEW_SMALL_INT(-1) : args[1], false);
        mp_obj_t ret = self->items[index];
        self->len -= 1;
        memcpy(self->items + index, self->items + index + 1, (self->len - index) * sizeof(mp_obj_t));
        // Clear stale pointer from slot which just got freed to prevent GC issues
        self->items[self->len] = MP_OBJ_NULL;
        if (self->alloc > LIST_MIN_ALLOC && self->alloc > 2 * self->len) {
            self->items = m_renew(mp_obj_t, self->items, self->alloc, self->alloc/2);
            self->alloc /= 2;
        }
        return ret;
    }
    
    // TODO make this conform to CPython's definition of sort
    STATIC void mp_quicksort(mp_obj_t *head, mp_obj_t *tail, mp_obj_t key_fn, bool reversed) {
        int op = reversed ? MP_BINARY_OP_MORE : MP_BINARY_OP_LESS;
        while (head < tail) {
            mp_obj_t *h = head - 1;
            mp_obj_t *t = tail;
            mp_obj_t v = key_fn == NULL ? tail[0] : mp_call_function_1(key_fn, tail[0]); // get pivot using key_fn
            for (;;) {
                do ++h; while (mp_binary_op(op, key_fn == NULL ? h[0] : mp_call_function_1(key_fn, h[0]), v) == mp_const_true);
                do --t; while (h < t && mp_binary_op(op, v, key_fn == NULL ? t[0] : mp_call_function_1(key_fn, t[0])) == mp_const_true);
                if (h >= t) break;
                mp_obj_t x = h[0];
                h[0] = t[0];
                t[0] = x;
            }
            mp_obj_t x = h[0];
            h[0] = tail[0];
            tail[0] = x;
            mp_quicksort(head, t, key_fn, reversed);
            head = h + 1;
        }
    }
    
    mp_obj_t mp_obj_list_sort(uint n_args, const mp_obj_t *args, mp_map_t *kwargs) {
        assert(n_args >= 1);
        assert(MP_OBJ_IS_TYPE(args[0], &mp_type_list));
        if (n_args > 1) {
            nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError,
                                              "list.sort takes no positional arguments"));
        }
        mp_obj_list_t *self = args[0];
        if (self->len > 1) {
            mp_map_elem_t *keyfun = mp_map_lookup(kwargs, MP_OBJ_NEW_QSTR(MP_QSTR_key), MP_MAP_LOOKUP);
            mp_map_elem_t *reverse = mp_map_lookup(kwargs, MP_OBJ_NEW_QSTR(MP_QSTR_reverse), MP_MAP_LOOKUP);
            mp_quicksort(self->items, self->items + self->len - 1,
                         keyfun ? keyfun->value : NULL,
                         reverse && reverse->value ? mp_obj_is_true(reverse->value) : false);
        }
        return mp_const_none; // return None, as per CPython
    }
    
    STATIC mp_obj_t list_clear(mp_obj_t self_in) {
        assert(MP_OBJ_IS_TYPE(self_in, &mp_type_list));
        mp_obj_list_t *self = self_in;
        self->len = 0;
        self->items = m_renew(mp_obj_t, self->items, self->alloc, LIST_MIN_ALLOC);
        self->alloc = LIST_MIN_ALLOC;
        mp_seq_clear(self->items, 0, self->alloc, sizeof(*self->items));
        return mp_const_none;
    }
    
    STATIC mp_obj_t list_copy(mp_obj_t self_in) {
        assert(MP_OBJ_IS_TYPE(self_in, &mp_type_list));
        mp_obj_list_t *self = self_in;
        return mp_obj_new_list(self->len, self->items);
    }
    
    STATIC mp_obj_t list_count(mp_obj_t self_in, mp_obj_t value) {
        assert(MP_OBJ_IS_TYPE(self_in, &mp_type_list));
        mp_obj_list_t *self = self_in;
        return mp_seq_count_obj(self->items, self->len, value);
    }
    
    STATIC mp_obj_t list_index(uint n_args, const mp_obj_t *args) {
        assert(2 <= n_args && n_args <= 4);
        assert(MP_OBJ_IS_TYPE(args[0], &mp_type_list));
        mp_obj_list_t *self = args[0];
        return mp_seq_index_obj(self->items, self->len, n_args, args);
    }
    
    STATIC mp_obj_t list_insert(mp_obj_t self_in, mp_obj_t idx, mp_obj_t obj) {
        assert(MP_OBJ_IS_TYPE(self_in, &mp_type_list));
        mp_obj_list_t *self = self_in;
        // insert has its own strange index logic
        int index = MP_OBJ_SMALL_INT_VALUE(idx);
        if (index < 0) {
             index += self->len;
        }
        if (index < 0) {
             index = 0;
        }
        if (index > self->len) {
             index = self->len;
        }
    
        mp_obj_list_append(self_in, mp_const_none);
    
        for (int i = self->len-1; i > index; i--) {
             self->items[i] = self->items[i-1];
        }
        self->items[index] = obj;
    
        return mp_const_none;
    }
    
    STATIC mp_obj_t list_remove(mp_obj_t self_in, mp_obj_t value) {
        assert(MP_OBJ_IS_TYPE(self_in, &mp_type_list));
        mp_obj_t args[] = {self_in, value};
        args[1] = list_index(2, args);
        list_pop(2, args);
    
        return mp_const_none;
    }
    
    STATIC mp_obj_t list_reverse(mp_obj_t self_in) {
        assert(MP_OBJ_IS_TYPE(self_in, &mp_type_list));
        mp_obj_list_t *self = self_in;
    
        int len = self->len;
        for (int i = 0; i < len/2; i++) {
             mp_obj_t *a = self->items[i];
             self->items[i] = self->items[len-i-1];
             self->items[len-i-1] = a;
        }
    
        return mp_const_none;
    }
    
    STATIC MP_DEFINE_CONST_FUN_OBJ_2(list_append_obj, mp_obj_list_append);
    STATIC MP_DEFINE_CONST_FUN_OBJ_2(list_extend_obj, list_extend);
    STATIC MP_DEFINE_CONST_FUN_OBJ_1(list_clear_obj, list_clear);
    STATIC MP_DEFINE_CONST_FUN_OBJ_1(list_copy_obj, list_copy);
    STATIC MP_DEFINE_CONST_FUN_OBJ_2(list_count_obj, list_count);
    STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(list_index_obj, 2, 4, list_index);
    STATIC MP_DEFINE_CONST_FUN_OBJ_3(list_insert_obj, list_insert);
    STATIC MP_DEFINE_CONST_FUN_OBJ_VAR_BETWEEN(list_pop_obj, 1, 2, list_pop);
    STATIC MP_DEFINE_CONST_FUN_OBJ_2(list_remove_obj, list_remove);
    STATIC MP_DEFINE_CONST_FUN_OBJ_1(list_reverse_obj, list_reverse);
    STATIC MP_DEFINE_CONST_FUN_OBJ_KW(list_sort_obj, 0, mp_obj_list_sort);
    
    STATIC const mp_map_elem_t list_locals_dict_table[] = {
        { MP_OBJ_NEW_QSTR(MP_QSTR_append), (mp_obj_t)&list_append_obj },
        { MP_OBJ_NEW_QSTR(MP_QSTR_clear), (mp_obj_t)&list_clear_obj },
        { MP_OBJ_NEW_QSTR(MP_QSTR_copy), (mp_obj_t)&list_copy_obj },
        { MP_OBJ_NEW_QSTR(MP_QSTR_count), (mp_obj_t)&list_count_obj },
        { MP_OBJ_NEW_QSTR(MP_QSTR_extend), (mp_obj_t)&list_extend_obj },
        { MP_OBJ_NEW_QSTR(MP_QSTR_index), (mp_obj_t)&list_index_obj },
        { MP_OBJ_NEW_QSTR(MP_QSTR_insert), (mp_obj_t)&list_insert_obj },
        { MP_OBJ_NEW_QSTR(MP_QSTR_pop), (mp_obj_t)&list_pop_obj },
        { MP_OBJ_NEW_QSTR(MP_QSTR_remove), (mp_obj_t)&list_remove_obj },
        { MP_OBJ_NEW_QSTR(MP_QSTR_reverse), (mp_obj_t)&list_reverse_obj },
        { MP_OBJ_NEW_QSTR(MP_QSTR_sort), (mp_obj_t)&list_sort_obj },
    };
    
    STATIC MP_DEFINE_CONST_DICT(list_locals_dict, list_locals_dict_table);
    
    const mp_obj_type_t mp_type_list = {
        { &mp_type_type },
        .name = MP_QSTR_list,
        .print = list_print,
        .make_new = list_make_new,
        .unary_op = list_unary_op,
        .binary_op = list_binary_op,
        .subscr = list_subscr,
        .getiter = list_getiter,
        .locals_dict = (mp_obj_t)&list_locals_dict,
    };
    
    void mp_obj_list_init(mp_obj_list_t *o, uint n) {
        o->base.type = &mp_type_list;
        o->alloc = n < LIST_MIN_ALLOC ? LIST_MIN_ALLOC : n;
        o->len = n;
        o->items = m_new(mp_obj_t, o->alloc);
        mp_seq_clear(o->items, n, o->alloc, sizeof(*o->items));
    }
    
    STATIC mp_obj_list_t *list_new(uint n) {
        mp_obj_list_t *o = m_new_obj(mp_obj_list_t);
        mp_obj_list_init(o, n);
        return o;
    }
    
    mp_obj_t mp_obj_new_list(uint n, mp_obj_t *items) {
        mp_obj_list_t *o = list_new(n);
        if (items != NULL) {
            for (int i = 0; i < n; i++) {
                o->items[i] = items[i];
            }
        }
        return o;
    }
    
    void mp_obj_list_get(mp_obj_t self_in, uint *len, mp_obj_t **items) {
        mp_obj_list_t *self = self_in;
        *len = self->len;
        *items = self->items;
    }
    
    void mp_obj_list_set_len(mp_obj_t self_in, uint len) {
        // trust that the caller knows what it's doing
        // TODO realloc if len got much smaller than alloc
        mp_obj_list_t *self = self_in;
        self->len = len;
    }
    
    void mp_obj_list_store(mp_obj_t self_in, mp_obj_t index, mp_obj_t value) {
        mp_obj_list_t *self = self_in;
        uint i = mp_get_index(self->base.type, self->len, index, false);
        self->items[i] = value;
    }
    
    /******************************************************************************/
    /* list iterator                                                              */
    
    typedef struct _mp_obj_list_it_t {
        mp_obj_base_t base;
        mp_obj_list_t *list;
        machine_uint_t cur;
    } mp_obj_list_it_t;
    
    mp_obj_t list_it_iternext(mp_obj_t self_in) {
        mp_obj_list_it_t *self = self_in;
        if (self->cur < self->list->len) {
            mp_obj_t o_out = self->list->items[self->cur];
            self->cur += 1;
            return o_out;
        } else {
            return MP_OBJ_STOP_ITERATION;
        }
    }
    
    STATIC const mp_obj_type_t mp_type_list_it = {
        { &mp_type_type },
        .name = MP_QSTR_iterator,
        .getiter = mp_identity,
        .iternext = list_it_iternext,
    };
    
    mp_obj_t mp_obj_new_list_iterator(mp_obj_list_t *list, int cur) {
        mp_obj_list_it_t *o = m_new_obj(mp_obj_list_it_t);
        o->base.type = &mp_type_list_it;
        o->list = list;
        o->cur = cur;
        return o;
    }