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darleybarretoyouknowone
authored andcommitted
Adding several changes to make some tests pass
1 parent 694b1ff commit 4725a80

16 files changed

+139
-98
lines changed

Lib/ctypes/__init__.py

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -346,4 +346,4 @@ def WinError(code=None, descr=None):
346346
elif sizeof(kind) == 8: c_uint64 = kind
347347
del(kind)
348348

349-
_reset_cache()
349+
# _reset_cache()
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Lib/ctypes/tests/test_arrays.py renamed to Lib/ctypes/test/test_arrays.py

Lines changed: 8 additions & 3 deletions
Original file line numberDiff line numberDiff line change
@@ -177,37 +177,42 @@ def test_bad_subclass(self):
177177
with self.assertRaises(AttributeError):
178178
class T(Array):
179179
pass
180+
T()
180181
with self.assertRaises(AttributeError):
181182
class T(Array):
182183
_type_ = c_int
184+
T()
183185
with self.assertRaises(AttributeError):
184186
class T(Array):
185187
_length_ = 13
186-
188+
T()
187189
def test_bad_length(self):
188190
with self.assertRaises(ValueError):
189191
class T(Array):
190192
_type_ = c_int
191193
_length_ = - sys.maxsize * 2
194+
T()
192195
with self.assertRaises(ValueError):
193196
class T(Array):
194197
_type_ = c_int
195198
_length_ = -1
199+
T()
196200
with self.assertRaises(TypeError):
197201
class T(Array):
198202
_type_ = c_int
199203
_length_ = 1.87
204+
T()
200205
with self.assertRaises(OverflowError):
201206
class T(Array):
202207
_type_ = c_int
203208
_length_ = sys.maxsize * 2
204-
209+
T()
205210
def test_zero_length(self):
206211
# _length_ can be zero.
207212
class T(Array):
208213
_type_ = c_int
209214
_length_ = 0
210-
215+
T()
211216
@unittest.skip("TODO: RUSTPYTHON, implrment Structure")
212217
def test_empty_element_struct(self):
213218
class EmptyStruct(Structure):
File renamed without changes.
File renamed without changes.
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vm/src/stdlib/ctypes/array.rs

Lines changed: 57 additions & 43 deletions
Original file line numberDiff line numberDiff line change
@@ -19,10 +19,10 @@ use crate::VirtualMachine;
1919

2020
use crate::stdlib::ctypes::basics::{
2121
default_from_param, generic_get_buffer, get_size, BorrowValue as BorrowValueCData,
22-
BorrowValueMut, PyCData, PyCDataFunctions, PyCDataMethods, RawBuffer,
22+
BorrowValueMut, PyCData, PyCDataFunctions, PyCDataMethods, PyCDataSequenceMethods, RawBuffer,
2323
};
2424
use crate::stdlib::ctypes::pointer::PyCPointer;
25-
use crate::stdlib::ctypes::primitive::PySimpleType;
25+
use crate::stdlib::ctypes::primitive::{new_simple_type, PySimpleType};
2626

2727
macro_rules! byte_match_type {
2828
(
@@ -111,19 +111,24 @@ pub fn make_array_with_lenght(
111111
length: usize,
112112
vm: &VirtualMachine,
113113
) -> PyResult<PyRef<PyCArray>> {
114-
if let Ok(ref outer_type) = vm.get_attribute(cls.as_object().to_owned(), "_type_") {
115-
if let Ok(_type_) = outer_type.clone().downcast_exact::<PySimpleType>(vm) {
116-
let itemsize = get_size(_type_._type_.as_str());
117-
118-
Ok(PyCArray {
119-
_type_,
120-
_length_: length,
121-
_buffer: PyRwLock::new(RawBuffer {
122-
inner: Vec::with_capacity(length * itemsize).as_mut_ptr(),
123-
size: length * itemsize,
124-
}),
114+
if let Some(outer_type) = cls.get_attr("_type_") {
115+
let length = length as usize;
116+
if let Ok(_type_) = vm.get_attribute(outer_type.clone(), "_type_") {
117+
let itemsize = get_size(_type_.downcast::<PyStr>().unwrap().to_string().as_str());
118+
119+
if length.checked_mul(itemsize).is_none() {
120+
Err(vm.new_overflow_error("Array size too big".to_string()))
121+
} else {
122+
Ok(PyCArray {
123+
_type_: new_simple_type(Either::A(&outer_type), vm)?.into_ref(vm),
124+
_length_: length,
125+
_buffer: PyRwLock::new(RawBuffer {
126+
inner: Vec::with_capacity(length * itemsize).as_mut_ptr(),
127+
size: length * itemsize,
128+
}),
129+
}
130+
.into_ref_with_type(vm, cls)?)
125131
}
126-
.into_ref_with_type(vm, cls)?)
127132
} else {
128133
Err(vm.new_type_error("_type_ must have storage info".to_string()))
129134
}
@@ -140,7 +145,7 @@ fn set_array_value(
140145
obj: PyObjectRef,
141146
vm: &VirtualMachine,
142147
) -> PyResult<()> {
143-
if obj.clone().downcast::<PyCData>().is_err() {
148+
if !obj.clone_class().issubclass(PyCData::static_type()) {
144149
let value = PyCDataMethods::from_param(zelf._type_.clone(), obj, vm)?;
145150

146151
let v_buffer = try_buffer_from_object(vm, &value)?;
@@ -247,7 +252,7 @@ impl PyCDataMethods for PyCArray {
247252
};
248253

249254
if vm.obj_len(&value)? > zelf._length_ {
250-
Err(vm.new_value_error("Invalid length".to_string()))
255+
Err(vm.new_value_error("value has size greater than the array".to_string()))
251256
} else if zelf._type_._type_.as_str() == "c"
252257
&& value.clone().downcast_exact::<PyBytes>(vm).is_err()
253258
{
@@ -266,13 +271,16 @@ impl PyCDataMethods for PyCArray {
266271
Err(vm.new_type_error("Invalid type".to_string()))
267272
}?;
268273

269-
PyCArray::init(zelf.clone(), value, vm)?;
274+
PyCArray::init(zelf.clone(), OptionalArg::Present(value), vm)?;
270275

271276
default_from_param(zelf.clone_class(), zelf.as_object().clone(), vm)
272277
}
273278
}
274279

275-
#[pyimpl(flags(BASETYPE), with(BufferProtocol))]
280+
#[pyimpl(
281+
flags(BASETYPE),
282+
with(BufferProtocol, PyCDataFunctions, PyCDataMethods)
283+
)]
276284
impl PyCArray {
277285
#[pyslot]
278286
fn tp_new(cls: PyTypeRef, vm: &VirtualMachine) -> PyResult<PyRef<Self>> {
@@ -304,31 +312,31 @@ impl PyCArray {
304312
}
305313

306314
#[pymethod(magic)]
307-
pub fn init(zelf: PyRef<Self>, value: PyObjectRef, vm: &VirtualMachine) -> PyResult<()> {
308-
let value_lenght = vm.obj_len(&value)?;
309-
310-
if value_lenght < zelf._length_ {
311-
let value_vec: Vec<PyObjectRef> = vm.extract_elements(&value)?;
312-
for (i, v) in value_vec.iter().enumerate() {
313-
Self::setitem(zelf.clone(), Either::A(i as isize), v.clone(), vm)?
314-
}
315-
Ok(())
316-
} else if value_lenght == zelf._length_ {
317-
let py_slice = Either::B(
318-
PySlice {
319-
start: Some(vm.new_pyobj(0)),
320-
stop: vm.new_pyobj(zelf._length_),
321-
step: None,
315+
pub fn init(zelf: PyRef<Self>, value: OptionalArg, vm: &VirtualMachine) -> PyResult<()> {
316+
value.map_or(Ok(()), |value| {
317+
let value_lenght = vm.obj_len(&value)?;
318+
319+
if value_lenght < zelf._length_ {
320+
let value_vec: Vec<PyObjectRef> = vm.extract_elements(&value)?;
321+
for (i, v) in value_vec.iter().enumerate() {
322+
Self::setitem(zelf.clone(), Either::A(i as isize), v.clone(), vm)?
322323
}
323-
.into_ref(vm),
324-
);
324+
Ok(())
325+
} else if value_lenght == zelf._length_ {
326+
let py_slice = Either::B(
327+
PySlice {
328+
start: Some(vm.new_pyobj(0)),
329+
stop: vm.new_pyobj(zelf._length_),
330+
step: None,
331+
}
332+
.into_ref(vm),
333+
);
325334

326-
Self::setitem(zelf, py_slice, value, vm)
327-
} else {
328-
Err(vm.new_value_error(
329-
"number of values is greater than the size of the array".to_string(),
330-
))
331-
}
335+
Self::setitem(zelf, py_slice, value, vm)
336+
} else {
337+
Err(vm.new_value_error("value has size greater than the array".to_string()))
338+
}
339+
})
332340
}
333341

334342
#[pyproperty(name = "value")]
@@ -502,8 +510,10 @@ impl PyCArray {
502510

503511
let res = match k_or_idx {
504512
Either::A(idx) => {
505-
if idx < 0 || idx as usize > zelf._length_ {
513+
if idx < 0 {
506514
Err(vm.new_index_error("invalid index".to_string()))
515+
} else if idx as usize > zelf._length_ {
516+
Err(vm.new_index_error("index out of bounds".to_string()))
507517
} else {
508518
let idx = idx as usize;
509519
let buffer_slice = buffer_bytes[idx..idx + offset].as_ref();
@@ -548,8 +558,10 @@ impl PyCArray {
548558

549559
match k_or_idx {
550560
Either::A(idx) => {
551-
if idx < 0 || idx as usize > zelf._length_ {
561+
if idx < 0 {
552562
Err(vm.new_index_error("invalid index".to_string()))
563+
} else if idx as usize > zelf._length_ {
564+
Err(vm.new_index_error("index out of bounds".to_string()))
553565
} else {
554566
set_array_value(&zelf, &mut buffer_bytes, idx as usize, offset, obj, vm)
555567
}
@@ -617,3 +629,5 @@ impl PyCDataFunctions for PyCArray {
617629
.new_pyobj(unsafe { &*zelf.borrow_value().inner } as *const _ as *const usize as usize))
618630
}
619631
}
632+
633+
impl PyCDataSequenceMethods for PyCArray {}

vm/src/stdlib/ctypes/basics.rs

Lines changed: 50 additions & 38 deletions
Original file line numberDiff line numberDiff line change
@@ -10,13 +10,14 @@ use crate::common::borrow::{BorrowedValue, BorrowedValueMut};
1010
use crate::common::lock::{PyRwLock, PyRwLockReadGuard, PyRwLockWriteGuard};
1111
use crate::function::OptionalArg;
1212
use crate::pyobject::{
13-
PyObjectRef, PyRef, PyResult, PyValue, StaticType, TryFromObject, TypeProtocol,
13+
Either, PyObjectRef, PyRef, PyResult, PyValue, StaticType, TryFromObject, TypeProtocol,
1414
};
1515
use crate::slots::BufferProtocol;
1616
use crate::VirtualMachine;
1717

1818
use crate::stdlib::ctypes::array::make_array_with_lenght;
1919
use crate::stdlib::ctypes::dll::dlsym;
20+
use crate::stdlib::ctypes::primitive::{new_simple_type, PySimpleType};
2021

2122
use crossbeam_utils::atomic::AtomicCell;
2223

@@ -55,7 +56,7 @@ pub fn get_size(ty: &str) -> usize {
5556
"f" => c_float
5657
"d" | "g" => c_double
5758
"?" | "B" => c_uchar
58-
"P" | "z" | "Z" => c_void
59+
"P" | "z" | "Z" => usize
5960
)
6061
}
6162

@@ -445,50 +446,61 @@ impl PyCData {
445446
pub fn setstate(zelf: PyRef<Self>) {}
446447
}
447448

448-
pub fn sizeof_func(tp: PyObjectRef, vm: &VirtualMachine) -> PyResult {
449-
if tp.clone().downcast::<PyCData>().is_err() {
450-
Err(vm.new_type_error(format!(
451-
"sizeof() argument must be a ctypes instance, not {}",
452-
tp.class().name
453-
)))
454-
} else {
455-
let size_of_instances = vm.get_method(tp, "size_of_instances").unwrap();
456-
vm.invoke(&size_of_instances?, ())
449+
pub fn sizeof_func(tp: Either<PyTypeRef, PyObjectRef>, vm: &VirtualMachine) -> PyResult {
450+
match tp {
451+
Either::A(type_) if type_.issubclass(PySimpleType::static_type()) => {
452+
let zelf = new_simple_type(Either::B(&type_), vm)?;
453+
PyCDataFunctions::size_of_instances(zelf.into_ref(vm), vm)
454+
}
455+
Either::B(obj) if obj.has_class_attr("size_of_instances") => {
456+
let size_of = vm.get_attribute(obj, "size_of_instances").unwrap();
457+
vm.invoke(&size_of, ())
458+
}
459+
_ => Err(vm.new_type_error("this type has no size".to_string())),
457460
}
458461
}
459462

460-
pub fn alignment(tp: PyObjectRef, vm: &VirtualMachine) -> PyResult {
461-
if tp.clone().downcast::<PyCData>().is_err() {
462-
Err(vm.new_type_error(format!(
463-
"alignment() argument must be a ctypes instance, not {}",
464-
tp.class().name
465-
)))
466-
} else {
467-
let alignment_of_instances = vm.get_method(tp, "alignment_of_instances").unwrap();
468-
vm.invoke(&alignment_of_instances?, ())
463+
pub fn alignment(tp: Either<PyTypeRef, PyObjectRef>, vm: &VirtualMachine) -> PyResult {
464+
match tp {
465+
Either::A(type_) if type_.issubclass(PySimpleType::static_type()) => {
466+
let zelf = new_simple_type(Either::B(&type_), vm)?;
467+
PyCDataFunctions::alignment_of_instances(zelf.into_ref(vm), vm)
468+
}
469+
Either::B(obj) if obj.has_class_attr("alignment_of_instances") => {
470+
let size_of = vm.get_attribute(obj, "alignment_of_instances").unwrap();
471+
vm.invoke(&size_of, ())
472+
}
473+
_ => Err(vm.new_type_error("no alignment info".to_string())),
469474
}
470475
}
471476

472477
pub fn byref(tp: PyObjectRef, vm: &VirtualMachine) -> PyResult {
473-
if tp.clone().downcast::<PyCData>().is_err() {
474-
Err(vm.new_type_error(format!(
475-
"byref() argument must be a ctypes instance, not {}",
476-
tp.class().name
477-
)))
478-
} else {
479-
let ref_to = vm.get_method(tp, "ref_to").unwrap();
480-
vm.invoke(&ref_to?, ())
481-
}
478+
//@TODO: Return a Pointer when Pointer implementation is ready
479+
let class = tp.clone_class();
480+
481+
if class.issubclass(PyCData::static_type()) {
482+
if let Some(ref_to) = vm.get_method(tp, "ref_to") {
483+
return vm.invoke(&ref_to?, ());
484+
}
485+
};
486+
487+
Err(vm.new_type_error(format!(
488+
"byref() argument must be a ctypes instance, not '{}'",
489+
class.name
490+
)))
482491
}
483492

484493
pub fn addressof(tp: PyObjectRef, vm: &VirtualMachine) -> PyResult {
485-
if tp.clone().downcast::<PyCData>().is_err() {
486-
Err(vm.new_type_error(format!(
487-
"addressof() argument must be a ctypes instance, not {}",
488-
tp.class().name
489-
)))
490-
} else {
491-
let address_of = vm.get_method(tp, "address_of").unwrap();
492-
vm.invoke(&address_of?, ())
493-
}
494+
let class = tp.clone_class();
495+
496+
if class.issubclass(PyCData::static_type()) {
497+
if let Some(address_of) = vm.get_method(tp, "address_of") {
498+
return vm.invoke(&address_of?, ());
499+
}
500+
};
501+
502+
Err(vm.new_type_error(format!(
503+
"addressof() argument must be a ctypes instance, not '{}'",
504+
class.name
505+
)))
494506
}

vm/src/stdlib/ctypes/mod.rs

Lines changed: 2 additions & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,5 +1,4 @@
1-
use crate::pyobject::PyClassImpl;
2-
use crate::pyobject::PyObjectRef;
1+
use crate::pyobject::{PyClassImpl, PyObjectRef, PyValue};
32
use crate::VirtualMachine;
43

54
mod array;
@@ -37,6 +36,7 @@ pub(crate) fn make_module(vm: &VirtualMachine) -> PyObjectRef {
3736

3837
"POINTER" => ctx.new_function(POINTER),
3938
"pointer" => ctx.new_function(pointer_fn),
39+
"_pointer_type_cache" => ctx.new_dict(),
4040

4141
"CFuncPtr" => PyCFuncPtr::make_class(ctx),
4242
"_SimpleCData" => PySimpleType::make_class(ctx),

vm/src/stdlib/ctypes/pointer.rs

Lines changed: 1 addition & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -1,6 +1,6 @@
11
use std::fmt;
22

3-
use crate::builtins::PyTypeRef;
3+
use crate::builtins::{PyDict, PyTypeRef};
44
use crate::pyobject::{PyObjectRef, PyValue, StaticType};
55
use crate::VirtualMachine;
66

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