Class: Cumo::Struct

Inherits:
NArray
  • Object
show all
Defined in:
ext/cumo/narray/struct.c

Class Method Summary collapse

Instance Method Summary collapse

Dynamic Method Handling

This class handles dynamic methods through the method_missing method

#method_missing(*args) ⇒ Object 



215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
 
# File 'ext/cumo/narray/struct.c', line 215

static VALUE
nst_method_missing(int argc, VALUE *argv, VALUE self)
{
    VALUE s, tag, obj;

    if (argc == 2) {
        s = rb_sym_to_s(argv[0]);
        if (RSTRING_PTR(s)[RSTRING_LEN(s)-1] == '=') {
            tag = rb_str_intern(rb_str_new(RSTRING_PTR(s), RSTRING_LEN(s)-1));
            obj = nst_field(self, tag);
            if (RTEST(obj)) {
                rb_funcall(obj, rb_intern("store"), 1, argv[1]);
                return argv[1];
            }
        }
        return rb_call_super(argc,argv);
    }
    if (argc == 1) {
        obj = nst_field(self,argv[0]);
        if (RTEST(obj)) {
            return obj;
        }
    }
    return rb_call_super(argc,argv);
}

Class Method Details

.[] ⇒ Object

.add_type(*args) ⇒ Object 



800
801
802
803
804
805
806
807
808
 
# File 'ext/cumo/narray/struct.c', line 800

static VALUE
nst_s_add_type(int argc, VALUE *argv, VALUE mod)
{
    if (argc==0)
        rb_raise(rb_eArgError,
                 "wrong number of arguments (%d for 1)", argc);
    nstruct_add_type(argv[0],argc-1,argv+1,mod);
    return Qnil;
}

.cast ⇒ Object

.dcomplex ⇒ Object

.dfloat ⇒ Object

.int16 ⇒ Object

.int32 ⇒ Object

.int64 ⇒ Object

.int8 ⇒ Object

.new(*args) ⇒ Object

Foo = Cumo::Struct.new 

int8     :byte
float64  :float, [2,2]
dcomplex :compl




249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
 
# File 'ext/cumo/narray/struct.c', line 249

static VALUE
nst_s_new(int argc, VALUE *argv, VALUE klass)
{
    VALUE name=Qnil, rest, size;
    VALUE st, members;
    ID id;

    rb_scan_args(argc, argv, "0*", &rest);
    if (RARRAY_LEN(rest)>0) {
        name = RARRAY_AREF(rest,0);
        if (!NIL_P(name)) {
            VALUE tmp = rb_check_string_type(name);
            if (!NIL_P(tmp)) {
                rb_ary_shift(rest);
            } else {
                name = Qnil;
            }
        }
    }

    if (NIL_P(name)) {
        st = rb_define_class_id(name, klass);
        rb_funcall(klass, rb_intern("inherited"), 1, st);
    }
    else {
        char *cname = StringValuePtr(name);
        id = rb_intern(cname);
        if (!rb_is_const_id(id)) {
            rb_name_error(id, "identifier %s needs to be constant", cname);
        }
        if (rb_const_defined_at(klass, id)) {
            rb_warn("redefining constant Struct::%s", cname);
            rb_mod_remove_const(klass, ID2SYM(id));
        }
        st = rb_define_class_under(klass, rb_id2name(id), klass);
    }

    rb_iv_set(st, "__members__", rb_ary_new());
    rb_iv_set(st, "__offset__", INT2FIX(0));

    if (rb_block_given_p()) {
        rb_mod_module_eval(0, 0, st);
    }

    size = rb_iv_get(st, "__offset__");
    members = rb_iv_get(st, "__members__");
    //printf("size=%d\n",NUM2INT(size));
    rb_define_const(st, "CONTIGUOUS_STRIDE", size);
    rb_define_const(st, "ELEMENT_BYTE_SIZE", size);
    rb_define_const(st, "ELEMENT_BIT_SIZE",  rb_funcall(size,'*',1,INT2FIX(8)));

    OBJ_FREEZE(members);
    rb_define_const(st, "DEFINITIONS", members);

    rb_define_singleton_method(st, "new", rb_class_new_instance, -1);
    //rb_define_singleton_method(st, "[]", rb_class_new_instance, -1);
    rb_define_method(st, "allocate", nst_allocate, 0);

    return st;
}

.scomplex ⇒ Object

.sfloat ⇒ Object

.uint16 ⇒ Object

.uint32 ⇒ Object

.uint64 ⇒ Object

.uint8 ⇒ Object

Instance Method Details

#definition(idx) ⇒ Object 



47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
 
# File 'ext/cumo/narray/struct.c', line 47

static VALUE
nst_definition(VALUE nst, VALUE idx)
{
    long i;
    VALUE def = nst_definitions(rb_obj_class(nst));
    long  len = RARRAY_LEN(def);

    if (TYPE(idx) == T_STRING || TYPE(idx) == T_SYMBOL) {
        ID id  = rb_to_id(idx);
        for (i=0; i<len; i++) {
            VALUE key = RARRAY_AREF(RARRAY_AREF(def,i),0);
            if (SYM2ID(key) == id) {
                return RARRAY_AREF(def,i);
            }
        }
    } else if (rb_obj_is_kind_of(idx,rb_cNumeric)) {
        i = NUM2LONG(idx);
        if (i<-len || i>=len) {
            rb_raise(rb_eIndexError,"offset %ld out of range of struct(size:%ld)", i, len);
        }
        return RARRAY_AREF(def,i);
    }
    return Qnil;
}

#definitions ⇒ Object

#extract ⇒ Object 



380
381
382
383
384
 
# File 'ext/cumo/narray/struct.c', line 380

static VALUE
nst_extract(VALUE self)
{
    return self;
}

#field(idx) ⇒ Object 



190
191
192
193
194
195
196
197
198
199
200
201
202
 
# File 'ext/cumo/narray/struct.c', line 190

static VALUE
nst_field(VALUE self, VALUE idx)
{
    VALUE obj;
    cumo_narray_view_t *nv;

    obj = nst_field_view(self,idx);
    CumoGetNArrayView(obj,nv);
    if (nv->base.ndim==0) {
        obj = rb_funcall(obj,rb_intern("extract_cpu"),0);
    }
    return obj;
}

#field_set(idx, other) ⇒ Object 



204
205
206
207
208
209
210
211
212
 
# File 'ext/cumo/narray/struct.c', line 204

static VALUE
nst_field_set(VALUE self, VALUE idx, VALUE other)
{
    VALUE obj;

    obj = nst_field_view(self,idx);
    rb_funcall(obj,rb_intern("store"),1,other);
    return other;
}

#inspect ⇒ String

Returns a string containing a human-readable representation of NArray.

Returns:

  • (String) 


791
792
793
794
795
796
797
 
# File 'ext/cumo/narray/struct.c', line 791

static VALUE
cumo_na_struct_inspect(VALUE ary)
{
    VALUE opt;
    opt = nst_create_member_views(ary);
    return cumo_na_ndloop_inspect(ary, iter_struct_inspect, opt);
}

#store(other) ⇒ Cumo::Struct

Store elements to Cumo::Struct from other.

Parameters:

  • other (Object)

Returns:



730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
 
# File 'ext/cumo/narray/struct.c', line 730

static VALUE
cumo_na_struct_store(VALUE self, VALUE obj)
{
    if (TYPE(obj)==T_ARRAY) {
        cumo_na_struct_store_array(self,obj);
        return self;
    }
    if (rb_obj_class(self) == rb_obj_class(obj)) {
        cumo_na_struct_store_struct(self,obj);
        return self;
    }
    rb_raise(cumo_na_eCastError, "unknown conversion from %s to %s",
             rb_class2name(rb_obj_class(obj)),
             rb_class2name(rb_obj_class(self)));
    return self;
}

#to_a ⇒ Object

rb_define_method(cT, “debug_print”, cumo_na_nstruct_debug_print, 0);



460
461
462
463
464
465
466
467
468
469
470
 
# File 'ext/cumo/narray/struct.c', line 460

static VALUE
cumo_na_struct_to_a(VALUE self)
{
    volatile VALUE opt;
    cumo_ndfunc_arg_in_t ain[3] = {{Qnil,0},{cumo_sym_loop_opt},{cumo_sym_option}};
    cumo_ndfunc_arg_out_t aout[1] = {{rb_cArray,0}}; // dummy?
    cumo_ndfunc_t ndf = {iter_nstruct_to_a, CUMO_NO_LOOP, 3, 1, ain, aout};

    opt = nst_create_member_views(self);
    return cumo_na_ndloop_cast_narray_to_rarray(&ndf, self, opt);
}