c5966128c7
Each built-in exception is now a type, with base type BaseException. C exceptions are created by passing a pointer to the exception type to make an instance of. When raising an exception from the VM, an instance is created automatically if an exception type is raised (as opposed to an exception instance). Exception matching (RT_BINARY_OP_EXCEPTION_MATCH) is now proper. Handling of parse error changed to match new exceptions. mp_const_type renamed to mp_type_type for consistency.
54 lines
1.4 KiB
C
54 lines
1.4 KiB
C
#include <stdlib.h>
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#include <assert.h>
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#include "nlr.h"
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#include "misc.h"
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#include "mpconfig.h"
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#include "qstr.h"
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#include "obj.h"
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#include "runtime.h"
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typedef struct _mp_obj_filter_t {
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mp_obj_base_t base;
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mp_obj_t fun;
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mp_obj_t iter;
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} mp_obj_filter_t;
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STATIC mp_obj_t filter_make_new(mp_obj_t type_in, uint n_args, uint n_kw, const mp_obj_t *args) {
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if (n_args != 2 || n_kw != 0) {
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nlr_jump(mp_obj_new_exception_msg(&mp_type_TypeError, "filter expected 2 arguments"));
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}
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assert(n_args == 2);
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mp_obj_filter_t *o = m_new_obj(mp_obj_filter_t);
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o->base.type = &filter_type;
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o->fun = args[0];
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o->iter = rt_getiter(args[1]);
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return o;
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}
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STATIC mp_obj_t filter_iternext(mp_obj_t self_in) {
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assert(MP_OBJ_IS_TYPE(self_in, &filter_type));
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mp_obj_filter_t *self = self_in;
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mp_obj_t next;
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while ((next = rt_iternext(self->iter)) != mp_const_stop_iteration) {
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mp_obj_t val;
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if (self->fun != mp_const_none) {
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val = rt_call_function_n_kw(self->fun, 1, 0, &next);
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} else {
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val = next;
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}
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if (rt_is_true(val)) {
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return next;
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}
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}
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return mp_const_stop_iteration;
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}
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const mp_obj_type_t filter_type = {
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{ &mp_type_type },
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.name = MP_QSTR_filter,
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.make_new = filter_make_new,
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.getiter = mp_identity,
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.iternext = filter_iternext,
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};
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