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35 results

input.py

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  • objmap.c 1.61 KiB
    #include <stdlib.h>
    #include <assert.h>
    
    #include "nlr.h"
    #include "misc.h"
    #include "mpconfig.h"
    #include "qstr.h"
    #include "obj.h"
    #include "runtime.h"
    
    typedef struct _mp_obj_map_t {
        mp_obj_base_t base;
        machine_uint_t n_iters;
        mp_obj_t fun;
        mp_obj_t iters[];
    } mp_obj_map_t;
    
    STATIC mp_obj_t map_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
        if (n_args < 2 || n_kw != 0) {
            nlr_raise(mp_obj_new_exception_msg(&mp_type_TypeError, "map must have at least 2 arguments and no keyword arguments"));
        }
        assert(n_args >= 2);
        mp_obj_map_t *o = m_new_obj_var(mp_obj_map_t, mp_obj_t, n_args - 1);
        o->base.type = &mp_type_map;
        o->n_iters = n_args - 1;
        o->fun = args[0];
        for (int i = 0; i < n_args - 1; i++) {
            o->iters[i] = mp_getiter(args[i + 1]);
        }
        return o;
    }
    
    STATIC mp_obj_t map_getiter(mp_obj_t self_in) {
        return self_in;
    }
    
    STATIC mp_obj_t map_iternext(mp_obj_t self_in) {
        assert(MP_OBJ_IS_TYPE(self_in, &mp_type_map));
        mp_obj_map_t *self = self_in;
        mp_obj_t *nextses = m_new(mp_obj_t, self->n_iters);
    
        for (int i = 0; i < self->n_iters; i++) {
            mp_obj_t next = mp_iternext(self->iters[i]);
            if (next == MP_OBJ_STOP_ITERATION) {
                m_del(mp_obj_t, nextses, self->n_iters);
                return MP_OBJ_STOP_ITERATION;
            }
            nextses[i] = next;
        }
        return mp_call_function_n_kw(self->fun, self->n_iters, 0, nextses);
    }
    
    const mp_obj_type_t mp_type_map = {
        { &mp_type_type },
        .name = MP_QSTR_map,
        .make_new = map_make_new,
        .getiter = map_getiter,
        .iternext = map_iternext,
    };