Files
pycapnp/capnp/lib/capnp.pxd
Lasse Blaauwbroek 983719fde9 Upgrade Cython to version 3
While looking at #333, I hypothesized that upgrading Cython might solve the
issue. It didn't. But upgrading should still happen at some point. This is my
work in progress on that. The tests pass, but there are two main things missing:

Problem (1):
Starting with Cython 3, you can only do `except+` or `except
+reraise_kj_exception` on `extern` functions coming from C++. (This makes sense,
and the way things were declared in Pycapnp wasn't too good.) As a result, I had
to remove a lot of these declaration. This results in some segmentation faults,
because Cython no longer detects C++ exceptions and converts them to Python
exceptions in some places.

To solve this, all `extern` declarations in `.pxd` files have to be examined and
`except +reraise_kj_exception` clauses need to be added to anything that might
throw. Previously, this was done really inconsistently. The lazy solution would
be to just add the clause everywhere, but I'm not sure what the performance
implications are.

Problem (2):
The compilation output of `python setup.py build_ext --inplace` is now full of messages like these:
```
capnp/lib/capnp.cpp: In function ‘PyObject* __pyx_f_5capnp_3lib_5capnp_18_DynamicListReader__get(__pyx_obj_5capnp_3lib_5capnp__DynamicListReader*, int64_t, int)’:
capnp/lib/capnp.cpp:4871:51: warning: moving a temporary object prevents copy elision [-Wpessimizing-move]
 4871 |   #define __PYX_STD_MOVE_IF_SUPPORTED(x) std::move(x)
      |                                          ~~~~~~~~~^~~
capnp/lib/capnp.cpp:20944:59: note: in expansion of macro ‘__PYX_STD_MOVE_IF_SUPPORTED’
20944 |   __pyx_t_2 = __pyx_f_5capnp_3lib_5capnp_to_python_reader(__PYX_STD_MOVE_IF_SUPPORTED((( ::capnp::DynamicValue::Reader)__pyx_t_7)), __pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 419, __pyx_L1_error)
      |                                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~
capnp/lib/capnp.cpp:4871:51: note: remove ‘std::move’ call
 4871 |   #define __PYX_STD_MOVE_IF_SUPPORTED(x) std::move(x)
      |                                          ~~~~~~~~~^~~
capnp/lib/capnp.cpp:20944:59: note: in expansion of macro ‘__PYX_STD_MOVE_IF_SUPPORTED’
20944 |   __pyx_t_2 = __pyx_f_5capnp_3lib_5capnp_to_python_reader(__PYX_STD_MOVE_IF_SUPPORTED((( ::capnp::DynamicValue::Reader)__pyx_t_7)), __pyx_t_1); if (unlikely(!__pyx_t_2)) __PYX_ERR(0, 419, __pyx_L1_error)
      |                                                           ^~~~~~~~~~~~~~~~~~~~~~~~~~~
```
There are to many `move` calls inserted. I'm not sure if this is a Cython issue,
or if we are somehow annotating things wrong. Might be worth asking the Cython
people.

I'm not planning on working on this further in the short term. If someone wants
to take over on this, feel free.
2025-05-12 15:54:19 -07:00

169 lines
5.8 KiB
Cython

# cython: language_level = 2
from capnp.includes cimport capnp_cpp as capnp
from capnp.includes cimport schema_cpp
from capnp.includes.capnp_cpp cimport (
Schema as C_Schema, StructSchema as C_StructSchema, InterfaceSchema as C_InterfaceSchema,
EnumSchema as C_EnumSchema, ListSchema as C_ListSchema, DynamicStruct as C_DynamicStruct,
DynamicValue as C_DynamicValue, Type as C_Type, DynamicList as C_DynamicList, SchemaLoader as C_SchemaLoader,
SchemaParser as C_SchemaParser, ParsedSchema as C_ParsedSchema, VOID, ArrayPtr, StringPtr,
String, StringTree, DynamicOrphan as C_DynamicOrphan, AnyPointer as C_DynamicObject,
DynamicCapability as C_DynamicCapability, Request, Response, RemotePromise, Promise,
CallContext, RpcSystem, makeRpcServer, makeRpcClient, Capability as C_Capability,
TwoPartyVatNetwork as C_TwoPartyVatNetwork, Side, AsyncIoStream, Own,
DynamicStruct_Builder, PyRefCounter, PyAsyncIoStream
)
from capnp.includes.schema_cpp cimport Node as C_Node, EnumNode as C_EnumNode
from capnp.includes.types cimport *
from capnp.helpers cimport helpers
cdef void reraise_kj_exception()
cdef class _StructSchemaField:
cdef C_StructSchema.Field thisptr
cdef object _parent
cdef _init(self, C_StructSchema.Field other, parent=?)
cdef class _StringArrayPtr:
cdef StringPtr * thisptr
cdef object parent
cdef size_t size
cdef ArrayPtr[StringPtr] asArrayPtr(self)
cdef class SchemaLoader:
cdef C_SchemaLoader * thisptr
cdef class SchemaParser:
cdef C_SchemaParser * thisptr
cdef public dict modules_by_id
cdef list _all_imports
cdef _StringArrayPtr _last_import_array
cpdef _parse_disk_file(self, displayName, diskPath, imports)
cdef class _DynamicOrphan:
cdef C_DynamicOrphan thisptr
cdef public object _parent
cdef _init(self, C_DynamicOrphan other, object parent)
cdef C_DynamicOrphan move(self)
cpdef get(self)
cdef class _DynamicStructReader:
cdef C_DynamicStruct.Reader thisptr
cdef public object _parent
cdef public bint is_root
cdef object _obj_to_pin
cdef object _schema
cdef _init(self, C_DynamicStruct.Reader other, object parent, bint isRoot=?, bint tryRegistry=?)
cpdef _get(self, field)
cpdef _has(self, field)
cpdef _DynamicEnumField _which(self)
cpdef _which_str(self)
cpdef _get_by_field(self, _StructSchemaField field)
cpdef _has_by_field(self, _StructSchemaField field)
cpdef as_builder(self, num_first_segment_words=?)
cdef class _DynamicStructBuilder:
cdef DynamicStruct_Builder thisptr
cdef public object _parent
cdef public bint is_root
cdef public bint _is_written
cdef object _schema
cdef _init(self, DynamicStruct_Builder other, object parent, bint isRoot=?, bint tryRegistry=?)
cdef _check_write(self)
cpdef to_bytes(_DynamicStructBuilder self)
cpdef to_segments(_DynamicStructBuilder self)
cpdef _to_bytes_packed_helper(_DynamicStructBuilder self, word_count)
cpdef to_bytes_packed(_DynamicStructBuilder self)
cpdef _get(self, field)
cpdef _set(self, field, value)
cpdef _has(self, field)
cpdef init(self, field, size=?)
cpdef _get_by_field(self, _StructSchemaField field)
cpdef _set_by_field(self, _StructSchemaField field, value)
cpdef _has_by_field(self, _StructSchemaField field)
cpdef _init_by_field(self, _StructSchemaField field, size=?)
cpdef init_resizable_list(self, field)
cpdef _DynamicEnumField _which(self)
cpdef _which_str(self)
cpdef adopt(self, field, _DynamicOrphan orphan)
cpdef disown(self, field)
cpdef as_reader(self)
cpdef copy(self, num_first_segment_words=?)
cdef class _DynamicEnumField:
cdef object thisptr
cdef _init(self, proto)
cpdef _str(self)
cdef class _Schema:
cdef C_Schema thisptr
cdef _init(self, C_Schema other)
cpdef as_const_value(self)
cpdef as_struct(self)
cpdef as_interface(self)
cpdef as_enum(self)
cpdef get_proto(self)
cdef class _InterfaceSchema:
cdef C_InterfaceSchema thisptr
cdef object __method_names, __method_names_inherited, __methods, __methods_inherited
cdef _init(self, C_InterfaceSchema other)
cdef class _DynamicEnum:
cdef capnp.DynamicEnum thisptr
cdef public object _parent
cdef _init(self, capnp.DynamicEnum other, object parent)
cpdef _as_str(self)
cdef class _DynamicListBuilder:
cdef C_DynamicList.Builder thisptr
cdef public object _parent
cdef _init(self, C_DynamicList.Builder other, object parent)
cpdef _get(self, int64_t index)
cpdef _set(self, index, value)
cpdef adopt(self, index, _DynamicOrphan orphan)
cpdef disown(self, index)
cpdef init(self, index, size)
cdef class _MessageBuilder:
cdef schema_cpp.MessageBuilder * thisptr
cpdef init_root(self, schema)
cpdef get_root(self, schema)
cpdef get_root_as_any(self)
cpdef set_root(self, value)
cpdef get_segments_for_output(self)
cpdef new_orphan(self, schema)
cdef to_python_reader(C_DynamicValue.Reader self, object parent)
cdef to_python_builder(C_DynamicValue.Builder self, object parent)
cdef _to_dict(msg, bint verbose, bint ordered)
cdef _from_list(_DynamicListBuilder msg, list d)
cdef _from_tuple(_DynamicListBuilder msg, tuple d)
cdef _setDynamicFieldWithField(DynamicStruct_Builder thisptr, _StructSchemaField field, value, parent)
cdef _setDynamicFieldStatic(DynamicStruct_Builder thisptr, field, value, parent)
cdef api object wrap_dynamic_struct_reader(Response & r) with gil
cdef api Promise[void] * call_server_method(
object server, char * _method_name, CallContext & _context, object kj_loop) except * with gil
cdef api object wrap_kj_exception(capnp.Exception & exception) with gil
cdef api object wrap_kj_exception_for_reraise(capnp.Exception & exception) with gil
cdef api object get_exception_info(object exc_type, object exc_obj, object exc_tb) with gil