def create_python_return_type_bindings(
fm: FileManager,
pairs: Sequence[PythonSignatureNativeFunctionPair],
pred: Callable[[NativeFunction], bool],
filename: str,
) -> None:
"""
Generate function to initialize and return named tuple for native functions
which returns named tuple and relevant entry for the map in `python_return_types.cpp`.
"""
py_return_types_definition: List[str] = []
py_return_types_map: List[str] = []
grouped = group_filter_overloads(pairs, pred)
for name in sorted(grouped.keys(), key=lambda x: str(x)):
overloads = grouped[name]
definitions, map_entries = generate_return_type_definition_and_map_entry(
overloads)
py_return_types_definition.append(
"" if not definitions else "\n".join(definitions))
py_return_types_map.append(
"" if not map_entries else "\n".join(map_entries))
fm.write_with_template(
filename, filename, lambda: {
'generated_comment': '@' +
f'generated from {fm.template_dir}/{filename}',
'py_return_types': py_return_types_definition,
'py_return_types_map': py_return_types_map,
})
def gen_autograd_functions_lib(
out: str,
differentiability_infos: Sequence[DifferentiabilityInfo],
template_path: str,
) -> None:
"""Functions.h and Functions.cpp body
These contain the auto-generated subclasses of torch::autograd::Node
for each every differentiable torch function.
"""
# only create an autograd function if we are actually going to calculate a derivative
infos = list(
filter(lambda info: info.args_with_derivatives,
differentiability_infos))
declarations = list(
map(lambda f: process_function(f, FUNCTION_DECLARATION), infos))
definitions = list(
map(lambda f: process_function(f, FUNCTION_DEFINITION), infos))
file_basename = 'Functions'
fm = FileManager(install_dir=out,
template_dir=template_path,
dry_run=False)
for suffix in ['.h', '.cpp']:
fname = file_basename + suffix
fm.write_with_template(
fname, fname, lambda: {
'generated_comment': '@' + f'generated from {fm.template_dir}/'
+ fname,
'autograd_function_declarations': declarations,
'autograd_function_definitions': definitions,
})
def create_python_bindings(
fm: FileManager,
pairs: Sequence[PythonSignatureNativeFunctionPair],
pred: Callable[[NativeFunction], bool],
module: Optional[str],
filename: str,
*,
method: bool,
) -> None:
"""Generates Python bindings to ATen functions"""
py_methods: List[str] = []
py_method_defs: List[str] = []
py_forwards: List[str] = []
grouped = group_filter_overloads(pairs, pred)
for name in sorted(grouped.keys(), key=lambda x: str(x)):
overloads = grouped[name]
py_methods.append(method_impl(name, module, overloads, method=method))
py_method_defs.append(
method_def(name, module, overloads, method=method))
py_forwards.extend(forward_decls(name, overloads, method=method))
fm.write_with_template(
filename, filename, lambda: {
'generated_comment': '@' +
f'generated from {fm.template_dir}/{filename}',
'py_forwards': py_forwards,
'py_methods': py_methods,
'py_method_defs': py_method_defs,
})
def gen_dispatchkey_nativefunc_headers(
fm: FileManager,
class_name: str,
cpp_namespace: str,
backend_indices: Dict[DispatchKey, BackendIndex],
grouped_native_functions: Sequence[Union[NativeFunction, NativeFunctionsGroup]],
backend_dispatch_key: DispatchKey,
autograd_dispatch_key: Optional[DispatchKey]) -> None:
assert class_name is not None
generated_comment = 'Autogenerated file by gen_backend_stubs.py. Do not edit directly!'
# Convert to a set first to remove duplicate kernel names.
# Backends are allowed to repeat kernel names; only generate the declaration once!
# Sort for deterministic output.
backend_declarations = list(sorted(set(concatMap(
lambda f: dest.compute_native_function_declaration(f, backend_indices[backend_dispatch_key]),
grouped_native_functions))))
autograd_declarations = list(sorted(set(concatMap(
lambda f: [] if autograd_dispatch_key is None else
dest.compute_native_function_declaration(f, backend_indices[autograd_dispatch_key]),
grouped_native_functions))))
ns_helper = NamespaceHelper(cpp_namespace)
fm.write_with_template(f'{backend_dispatch_key}NativeFunctions.h', 'DispatchKeyNativeFunctions.h', lambda: {
'generated_comment': generated_comment,
'namespace_prologue': ns_helper.prologue,
'class_name': class_name,
'namespace_epilogue': ns_helper.epilogue,
'dispatch_declarations': backend_declarations + autograd_declarations,
})
def gen_annotated(native_yaml_path: str, out: str, autograd_dir: str) -> None:
native_functions = parse_native_yaml(native_yaml_path).native_functions
mappings = (
(is_py_torch_function, 'torch._C._VariableFunctions'),
(is_py_nn_function, 'torch._C._nn'),
(is_py_linalg_function, 'torch._C._linalg'),
(is_py_special_function, 'torch._C._special'),
(is_py_fft_function, 'torch._C._fft'),
(is_py_variable_method, 'torch.Tensor'),
)
annotated_args: List[str] = []
for pred, namespace in mappings:
groups: Dict[BaseOperatorName,
List[NativeFunction]] = defaultdict(list)
for f in native_functions:
if not should_generate_py_binding(f) or not pred(f):
continue
groups[f.func.name.name].append(f)
for group in groups.values():
for f in group:
annotated_args.append(f'{namespace}.{gen_annotated_args(f)}')
template_path = os.path.join(autograd_dir, 'templates')
fm = FileManager(install_dir=out,
template_dir=template_path,
dry_run=False)
fm.write_with_template(
'annotated_fn_args.py', 'annotated_fn_args.py.in', lambda: {
'annotated_args': textwrap.indent('\n'.join(annotated_args), ' '
),
})
def gen_dispatcher_registrations(fm: FileManager, output_dir: str,
cpp_namespace: str,
backend_indices: Dict[DispatchKey,
BackendIndex],
grouped_native_functions: Sequence[Union[
NativeFunction, NativeFunctionsGroup]],
backend_dispatch_key: DispatchKey,
dispatch_key: DispatchKey,
selector: 'SelectiveBuilder') -> None:
backend_index = backend_indices[dispatch_key]
fm.write_with_template(
f'Register{dispatch_key}.cpp', 'RegisterDispatchKey.cpp', lambda: {
'extra_cuda_headers':
'',
'external_backend_headers':
f'#include "{output_dir}/{backend_dispatch_key}NativeFunctions.h"',
'ops_headers':
'#include <ATen/Functions.h>',
'DispatchKey':
dispatch_key,
'dispatch_namespace':
dispatch_key.lower(),
'dispatch_headers':
dest.gen_registration_headers(
backend_index, per_operator_headers=False, rocm=False),
'dispatch_helpers':
dest.gen_registration_helpers(backend_index),
'dispatch_namespaced_definitions':
'',
'dispatch_anonymous_definitions':
list(
concatMap(
dest.RegisterDispatchKey(
backend_index,
Target.ANONYMOUS_DEFINITION,
selector,
rocm=False,
cpp_namespace=cpp_namespace,
class_method_name=
f'{backend_dispatch_key}NativeFunctions'),
grouped_native_functions)),
'dispatch_registrations':
list(
concatMap(
dest.RegisterDispatchKey(backend_index,
Target.REGISTRATION,
selector,
rocm=False,
cpp_namespace=cpp_namespace,
class_method_name=
f'{dispatch_key}NativeFunctions'),
grouped_native_functions)),
})
def gen_variable_factories(out: str, native_yaml_path: str,
template_path: str) -> None:
native_functions = parse_native_yaml(native_yaml_path).native_functions
fm = FileManager(install_dir=out,
template_dir=template_path,
dry_run=False)
fm.write_with_template(
'variable_factories.h', 'variable_factories.h', lambda: {
'generated_comment':
'@' + f'generated from {fm.template_dir}/variable_factories.h',
'function_definitions':
list(mapMaybe(process_function, native_functions)),
})
def gen_variable_factories(out: str, native_yaml_path: str,
template_path: str) -> None:
native_functions = parse_native_yaml(native_yaml_path).native_functions
factory_functions = [
fn for fn in native_functions if is_factory_function(fn)
]
fm = FileManager(install_dir=out,
template_dir=template_path,
dry_run=False)
fm.write_with_template(
'variable_factories.h', 'variable_factories.h', lambda: {
'generated_comment':
'@' + f'generated from {fm.template_dir}/variable_factories.h',
'ops_headers': [
f'#include <ATen/ops/{fn.root_name}.h>'
for fn in factory_functions
],
'function_definitions':
list(mapMaybe(process_function, factory_functions)),
})
def gen_inplace_or_view_type_shard(
fm: FileManager,
fns_with_infos: List[NativeFunctionWithDifferentiabilityInfo],
suffix: str) -> None:
filtered_fns_with_infos = list(filter(use_derived, fns_with_infos))
fm.write_with_template(
'ADInplaceOrViewType%s.cpp' % suffix, 'ADInplaceOrViewType.cpp',
lambda: {
'generated_comment':
f'@generated from {fm.template_dir}/ADInplaceOrViewType.cpp',
'inplace_or_view_method_definitions':
list(
mapMaybe(inplace_or_view_method_definition,
filtered_fns_with_infos)),
'inplace_or_view_wrapper_registrations':
list(
mapMaybe(inplace_or_view_method_registration,
filtered_fns_with_infos)),
})
def gen_pyi(native_yaml_path: str, deprecated_yaml_path: str, fm: FileManager) -> None:
"""gen_pyi()
This function generates a pyi file for torch.
"""
# Some of this logic overlaps with generate_python_signature in
# tools/autograd/gen_python_functions.py; however, this
# function is all about generating mypy type signatures, whereas
# the other function generates are custom format for argument
# checking. If you are update this, consider if your change
# also needs to update the other file.
# Dictionary for NamedTuple definitions
namedtuples: Dict[str, str] = {}
# Generate type signatures for top-level functions
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
unsorted_function_hints: Dict[str, List[str]] = collections.defaultdict(list)
unsorted_function_hints.update({
'set_flush_denormal': ['def set_flush_denormal(mode: _bool) -> _bool: ...'],
'get_default_dtype': ['def get_default_dtype() -> _dtype: ...'],
'asarray': ['def asarray(obj: Any, *, dtype: Optional[_dtype]=None, '
'device: Union[_device, str, None]=None, copy: Optional[_bool]=None, '
'requires_grad: _bool=False) -> Tensor: ...'],
'from_numpy': ['def from_numpy(ndarray) -> Tensor: ...'],
'frombuffer': ['def frombuffer(buffer: Any, *, dtype: _dtype, count: int=-1, '
'offset: int=0, device: Union[_device, str, None]=None, '
'requires_grad: _bool=False) -> Tensor: ...'],
'numel': ['def numel(self: Tensor) -> _int: ...'],
'as_tensor': ["def as_tensor(data: Any, dtype: _dtype=None, device: Optional[_device]=None) -> Tensor: ..."],
'get_num_threads': ['def get_num_threads() -> _int: ...'],
'set_num_threads': ['def set_num_threads(num: _int) -> None: ...'],
'init_num_threads': ['def init_num_threads() -> None: ...'],
'get_num_interop_threads': ['def get_num_interop_threads() -> _int: ...'],
'set_num_interop_threads': ['def set_num_interop_threads(num: _int) -> None: ...'],
# These functions are explicitly disabled by
# SKIP_PYTHON_BINDINGS because they are hand bound.
# Correspondingly, we must hand-write their signatures.
'tensor': ["def tensor(data: Any, {}) -> Tensor: ...".format(FACTORY_PARAMS)],
'sparse_coo_tensor': ['def sparse_coo_tensor(indices: Tensor, values: Union[Tensor,List],'
' size: Optional[_size]=None, *, dtype: Optional[_dtype]=None,'
' device: Union[_device, str, None]=None, requires_grad:_bool=False) -> Tensor: ...'],
'sparse_csr_tensor' : ['def sparse_csr_tensor(crow_indices: Union[Tensor, List],'
'col_indices: Union[Tensor, List],'
' values: Union[Tensor, List], size: Optional[_size]=None,'
' *, dtype: Optional[_dtype]=None,'
' device: Union[_device, str, None]=None, requires_grad:_bool=False) -> Tensor: ...'],
'_sparse_coo_tensor_unsafe': ['def _sparse_coo_tensor_unsafe(indices: Tensor, values: Tensor, size: List[int],'
' dtype: Optional[_dtype] = None, device: Optional[_device] = None,'
' requires_grad: bool = False) -> Tensor: ...'],
'_sparse_csr_tensor_unsafe': ['def _sparse_csr_tensor_unsafe(crow_indices: Union[Tensor, List],'
'col_indices: Union[Tensor, List],'
' values: Union[Tensor, List], size: List[int],'
' dtype: Optional[_dtype] = None, device: Optional[_device] = None,'
' requires_grad: bool = False) -> Tensor: ...'],
'range': ['def range(start: Number, end: Number,'
' step: Number=1, *, out: Optional[Tensor]=None, {}) -> Tensor: ...'
.format(FACTORY_PARAMS)],
'arange': ['def arange(start: Number, end: Number, step: Number, *,'
' out: Optional[Tensor]=None, {}) -> Tensor: ...'
.format(FACTORY_PARAMS),
'def arange(start: Number, end: Number, *, out: Optional[Tensor]=None, {}) -> Tensor: ...'
.format(FACTORY_PARAMS),
'def arange(end: Number, *, out: Optional[Tensor]=None, {}) -> Tensor: ...'
.format(FACTORY_PARAMS)],
'linspace': ['def linspace(start: Number, end: Number, steps: Optional[_int]=None, *,'
' out: Optional[Tensor]=None, {}) -> Tensor: ...'.format(FACTORY_PARAMS)],
'logspace': ['def logspace(start: Number, end: Number, steps: Optional[_int]=None, base: _float=10.0, *,'
' out: Optional[Tensor]=None, {}) -> Tensor: ...'.format(FACTORY_PARAMS)],
'randint': ['def randint(low: _int, high: _int, size: _size, *,'
' generator: Optional[Generator]=None, {}) -> Tensor: ...'
.format(FACTORY_PARAMS),
'def randint(high: _int, size: _size, *,'
' generator: Optional[Generator]=None, {}) -> Tensor: ...'
.format(FACTORY_PARAMS)],
'full': ['def full(size: _size, fill_value: Number, *,'
' out: Optional[Tensor]=None,'
' layout: _layout=strided, {}) -> Tensor: ...'
.format(FACTORY_PARAMS),
'def full(size: _size, fill_value: Number, *,'
' names: List[Union[str, None]],'
' layout: _layout=strided, {}) -> Tensor: ...'
.format(FACTORY_PARAMS)],
'is_grad_enabled': ['def is_grad_enabled() -> _bool: ...'],
'is_inference_mode_enabled': ['def is_inference_mode_enabled() -> _bool: ...'],
'nonzero': ['def nonzero(input: Tensor, *, as_tuple: Literal[False]=False, out: Optional[Tensor]=None) -> Tensor: ...',
'def nonzero(input: Tensor, *, as_tuple: Literal[True]) -> Tuple[Tensor, ...]: ...'],
'binary_cross_entropy_with_logits': ['def binary_cross_entropy_with_logits(input: Tensor, target: Tensor, '
'weight: Optional[Tensor] = None, size_average: Optional[bool] = None, '
'reduce: Optional[bool] = None, reduction: str = ..., '
'pos_weight: Optional[Tensor] = None) -> Tensor: ...'],
'cosine_embedding_loss': ['def cosine_embedding_loss(input1: Tensor, input2: Tensor, '
'target: Tensor, margin: float = ..., size_average: Optional[bool] = ..., '
'reduce: Optional[bool] = ..., reduction: str = ...) -> Tensor: ...'],
'ctc_loss': ['def ctc_loss(log_probs: Tensor, targets: Tensor, input_lengths: Tensor, target_lengths: Tensor,'
' blank: int = ..., reduction: str = ..., zero_infinity: bool = ...) -> Tensor: ...'],
'hinge_embedding_loss': ['def hinge_embedding_loss(input: Tensor, target: Tensor, margin: float = ...,'
' size_average: Optional[bool] = ..., reduce: Optional[bool] = ..., '
'reduction: str = ...) -> Tensor: ...'],
'kl_div': ['def kl_div(input: Tensor, target: Tensor, size_average: Optional[bool] = ..., '
'reduce: Optional[bool] = ..., reduction: str = ..., log_target: bool = ...) -> Tensor: ...'],
'margin_ranking_loss': ['def margin_ranking_loss(input1: Tensor, input2: Tensor, target: Tensor,'
' margin: float = ..., size_average: Optional[bool] = ..., '
' reduce: Optional[bool] = ..., reduction: str = ...) -> Tensor: ...'],
'triplet_margin_loss': ['def triplet_margin_loss(anchor: Tensor, positive: Tensor, negative: Tensor, '
'margin: float = ..., p: float = ..., eps: float = ..., swap: bool = ..., '
'size_average: Optional[bool] = ..., '
'reduce: Optional[bool] = ..., reduction: str = ...) -> Tensor: ...'],
'dsmm': ['def dsmm(input: Tensor, mat2: Tensor) -> Tensor: ...'],
'hsmm': ['def hsmm(input: Tensor, mat2: Tensor) -> Tensor: ...'],
'saddmm': ['def saddmm(input: Tensor, mat1: Tensor, mat2: Tensor, *, beta: Number=1, '
'alpha: Number=1, out: Optional[Tensor]=None) -> Tensor: ...'],
'spmm': ['def spmm(input: Tensor, mat2: Tensor) -> Tensor: ...'],
'div': ['def div(input: Union[Tensor, Number], other: Union[Tensor, Number], *, '
'rounding_mode: Optional[str] = None, out: Optional[Tensor]=None) -> Tensor: ...'],
})
for binop in ['mul', 'true_divide', 'floor_divide']:
unsorted_function_hints[binop].append(
'def {}(input: Union[Tensor, Number],'
' other: Union[Tensor, Number],'
' *, out: Optional[Tensor]=None) -> Tensor: ...'.format(binop))
for binop in ['add', 'sub']:
unsorted_function_hints[binop].append(
'def {}(input: Union[Tensor, Number],'
' other: Union[Tensor, Number],'
' *, alpha: Optional[Number]=1, out: Optional[Tensor]=None) -> Tensor: ...'.format(binop))
native_functions = parse_native_yaml(native_yaml_path).native_functions
native_functions = list(filter(should_generate_py_binding, native_functions))
function_signatures = load_signatures(native_functions, deprecated_yaml_path, method=False, pyi=True)
sig_groups = get_py_torch_functions(function_signatures)
for group in sorted(sig_groups, key=lambda g: g.signature.name):
name = group.signature.name
unsorted_function_hints[name] += generate_type_hints(group)
named_tuple = group.signature.returns.named_tuple_pyi()
if named_tuple is not None and not group.signature.deprecated:
# deprecated namedtuples are currently not included for torch functions
tuple_name, tuple_def = named_tuple
if tuple_name in namedtuples:
assert namedtuples[tuple_name] == tuple_def
else:
namedtuples[tuple_name] = tuple_def
function_hints = []
for name, hints in sorted(unsorted_function_hints.items()):
if len(hints) > 1:
hints = ['@overload\n' + h for h in hints]
function_hints += hints
# Generate type signatures for Tensor methods
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
unsorted_tensor_method_hints: Dict[str, List[str]] = collections.defaultdict(list)
unsorted_tensor_method_hints.update({
'size': ['def size(self) -> Size: ...',
'def size(self, dim: _int) -> _int: ...'],
'stride': ['def stride(self) -> Tuple[_int]: ...',
'def stride(self, _int) -> _int: ...'],
'new_ones': ['def new_ones(self, size: _size, {}) -> Tensor: ...'.
format(FACTORY_PARAMS)],
'new_tensor': ["def new_tensor(self, data: Any, {}) -> Tensor: ...".format(FACTORY_PARAMS)],
# new and __init__ have the same signatures differ only in return type
# Adapted from legacy_tensor_ctor and legacy_tensor_new
'new': ['def new(self, *args: Any, {}) ->Tensor: ...'.format(DEVICE_PARAM),
'def new(self, storage: Storage) -> Tensor: ...',
'def new(self, other: Tensor) -> Tensor: ...',
'def new(self, size: _size, *, {}) -> Tensor: ...'.format(DEVICE_PARAM),
],
'__init__': ['def __init__(self, *args: Any, {}) -> None: ...'.format(DEVICE_PARAM),
'def __init__(self, storage: Storage) -> None: ...',
'def __init__(self, other: Tensor) -> None: ...',
'def __init__(self, size: _size, *, {}) -> None: ...'.format(DEVICE_PARAM),
],
'as_subclass': ["def as_subclass(self, cls: Tensor) -> Tensor: ..."],
'_make_subclass': ["def _make_subclass(cls, data: Tensor, require_grad: _bool = False) -> Tensor: ..."],
'__getitem__': ["def __getitem__(self, {}) -> Tensor: ...".format(INDICES)],
'__setitem__': ["def __setitem__(self, {}, val: Union[Tensor, Number])"
" -> None: ...".format(INDICES)],
'tolist': ['def tolist(self) -> List: ...'],
'requires_grad_': ['def requires_grad_(self, mode: _bool=True) -> Tensor: ...'],
'element_size': ['def element_size(self) -> _int: ...'],
'data_ptr': ['def data_ptr(self) -> _int: ...'],
'dim': ['def dim(self) -> _int: ...'],
'nonzero': ['def nonzero(self, *, as_tuple: Literal[False]=False) -> Tensor: ...',
'def nonzero(self, *, as_tuple: Literal[True]) -> Tuple[Tensor, ...]: ...'],
'numel': ['def numel(self) -> _int: ...'],
'ndimension': ['def ndimension(self) -> _int: ...'],
'nelement': ['def nelement(self) -> _int: ...'],
'cuda': ['def cuda(self, device: Optional[Union[_device, _int, str]]=None, non_blocking: _bool=False) -> Tensor: ...'],
'numpy': ['def numpy(self) -> Any: ...'],
'apply_': ['def apply_(self, callable: Callable) -> Tensor: ...'],
'map_': ['def map_(self, tensor: Tensor, callable: Callable) -> Tensor: ...'],
'map2_': ['def map2_(self, x: Tensor, y: Tensor, callable: Callable) -> Tensor: ...'],
'storage': ['def _storage(self) -> Storage: ...'],
'storage_type': ['def storage_type(self) -> Storage: ...'],
'type': ['def type(self, dtype: None=None, non_blocking: _bool=False) -> str: ...',
'def type(self, dtype: Union[str, _dtype], non_blocking: _bool=False) -> Tensor: ...',
],
'get_device': ['def get_device(self) -> _int: ...'],
'contiguous': ['def contiguous(self, memory_format=torch.contiguous_format) -> Tensor: ...'],
'has_names': ['def has_names(self) -> _bool: ...'],
'is_contiguous': ['def is_contiguous(self, memory_format=torch.contiguous_format) -> _bool: ...'],
'_is_view': ['def _is_view(self) -> _bool: ...'],
'is_cuda': ['is_cuda: _bool'],
'is_leaf': ['is_leaf: _bool'],
'is_sparse': ['is_sparse: _bool'],
'is_sparse_csr' : ['is_sparse_csr: _bool'],
'is_quantized': ['is_quantized: _bool'],
'is_meta': ['is_meta: _bool'],
'is_ort': ['is_ort: _bool'],
'is_mkldnn': ['is_mkldnn: _bool'],
'is_vulkan': ['is_vulkan: _bool'],
'storage_offset': ['def storage_offset(self) -> _int: ...'],
'to': ['def to(self, dtype: _dtype, non_blocking: _bool=False, copy: _bool=False) -> Tensor: ...',
'def to(self, device: Optional[Union[_device, str]]=None, dtype: Optional[_dtype]=None, '
'non_blocking: _bool=False, copy: _bool=False) -> Tensor: ...',
'def to(self, other: Tensor, non_blocking: _bool=False, copy: _bool=False) -> Tensor: ...',
],
'item': ["def item(self) -> Number: ..."],
'copy_': ["def copy_(self, src: Tensor, non_blocking: _bool=False) -> Tensor: ..."],
'set_': ['def set_(self, storage: Union[Storage, _TypedStorage], offset: _int, size: _size, stride: _size) -> Tensor: ...',
'def set_(self, storage: Union[Storage, _TypedStorage]) -> Tensor: ...'],
'split': ['def split(self, split_size: _int, dim: _int=0) -> Sequence[Tensor]: ...',
'def split(self, split_size: Tuple[_int, ...], dim: _int=0) -> Sequence[Tensor]: ...'],
'div': ['def div(self, other: Union[Tensor, Number], *, rounding_mode: Optional[str] = None) -> Tensor: ...'],
'div_': ['def div_(self, other: Union[Tensor, Number], *, rounding_mode: Optional[str] = None) -> Tensor: ...'],
})
for binop in ['mul', 'true_divide', 'floor_divide']:
for inplace in [False, True]:
out_suffix = ', *, out: Optional[Tensor]=None'
if inplace:
binop += '_'
out_suffix = ''
unsorted_tensor_method_hints[binop].append(
'def {}(self, other: Union[Tensor, Number]{})'
' -> Tensor: ...'.format(binop, out_suffix))
for binop in ['add', 'sub']:
for inplace in [False, True]:
out_suffix = ', out: Optional[Tensor]=None'
if inplace:
binop += '_'
out_suffix = ''
unsorted_tensor_method_hints[binop].append(
'def {}(self, other: Union[Tensor, Number], '
'*, alpha: Optional[Number]=1{})'
' -> Tensor: ...'.format(binop, out_suffix))
simple_conversions = ['byte', 'char', 'cpu', 'double', 'float',
'half', 'int', 'long', 'short', 'bool',
'bfloat16']
for name in simple_conversions:
unsorted_tensor_method_hints[name].append('def {}(self) -> Tensor: ...'.format(name))
# pyi tensor methods don't currently include deprecated signatures for some reason
# TODO: we should probably add them in
tensor_method_signatures = load_signatures(native_functions, deprecated_yaml_path, method=True, skip_deprecated=True, pyi=True)
tensor_method_sig_groups = get_py_torch_functions(tensor_method_signatures, method=True)
for group in sorted(tensor_method_sig_groups, key=lambda g: g.signature.name):
name = group.signature.name
unsorted_tensor_method_hints[name] += generate_type_hints(group)
named_tuple = group.signature.returns.named_tuple_pyi()
if named_tuple is not None and not group.signature.deprecated:
# deprecated namedtuples are currently not included for torch functions
tuple_name, tuple_def = named_tuple
if tuple_name in namedtuples:
assert namedtuples[tuple_name] == tuple_def
else:
namedtuples[tuple_name] = tuple_def
for op in all_ops:
name = '__{}__'.format(op)
unsorted_tensor_method_hints[name] += sig_for_ops(name)
tensor_method_hints = []
for name, hints in sorted(unsorted_tensor_method_hints.items()):
if len(hints) > 1:
hints = ['@overload\n' + h for h in hints]
tensor_method_hints += hints
# TODO: Missing type hints for nn
# Generate namedtuple definitions
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
namedtuple_defs = ['{} = {}'.format(name, defn) for name, defn in namedtuples.items()]
# Generate type signatures for legacy classes
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# TODO: These are deprecated, maybe we shouldn't type hint them
legacy_storage_base_hints = []
dt = ('Double', 'Float', 'Long', 'Int',
'Short', 'Char', 'Byte', 'Bool',
'Half', 'BFloat16', 'ComplexDouble',
'ComplexFloat', 'QUInt8', 'QInt8', 'QInt32', 'QUInt4x2', 'QUInt2x4')
for c in dt:
legacy_storage_base_hints.append('class {}StorageBase(object): ...'.format(c))
for c in dt:
legacy_storage_base_hints.append('class Cuda{}StorageBase(object): ...'.format(c))
legacy_class_hints = []
for c in ('DoubleTensor', 'FloatTensor', 'LongTensor', 'IntTensor',
'ShortTensor', 'HalfTensor', 'CharTensor', 'ByteTensor', 'BoolTensor'):
legacy_class_hints.append('class {}(Tensor): ...'.format(c))
# Generate type signatures for dtype classes
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# TODO: don't explicitly list dtypes here; get it from canonical
# source
dtype_class_hints = ['{}: dtype = ...'.format(n)
for n in
['float32', 'float', 'float64', 'double', 'float16', 'bfloat16', 'half',
'uint8', 'int8', 'int16', 'short', 'int32', 'int', 'int64', 'long',
'complex32', 'complex64', 'cfloat', 'complex128', 'cdouble',
'quint8', 'qint8', 'qint32', 'bool', 'quint4x2', 'quint2x4']]
# Generate __all__ directive
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
# Include only the functions that contain hints, to prevent undefined
# symbols to be included in the `__all__` directive.
hinted_function_names = [name for name, hint in unsorted_function_hints.items() if hint]
all_symbols = sorted(list(namedtuples.keys()) + hinted_function_names)
all_directive = pformat(all_symbols, width=100, compact=True).split('\n')
all_directive[0] = '__all__ = {}'.format(all_directive[0])
# Write out the stub
# ~~~~~~~~~~~~~~~~~~
env = {
'namedtuple_defs': namedtuple_defs,
'function_hints': function_hints,
'tensor_method_hints': tensor_method_hints,
'legacy_class_hints': legacy_class_hints,
'legacy_storage_base_hints': legacy_storage_base_hints,
'dtype_class_hints': dtype_class_hints,
'all_directive': all_directive
}
fm.write_with_template('torch/_C/__init__.pyi', 'torch/_C/__init__.pyi.in', lambda: {
'generated_comment': '@' + 'generated from torch/_C/__init__.pyi.in',
**env,
})
fm.write_with_template('torch/_C/_VariableFunctions.pyi', 'torch/_C/_VariableFunctions.pyi.in', lambda: {
'generated_comment': '@' + 'generated from torch/_C/_VariableFunctions.pyi.in',
**env,
})
fm.write_with_template('torch/_VF.pyi', 'torch/_C/_VariableFunctions.pyi.in', lambda: {
'generated_comment': '@' + 'generated from torch/_C/_VariableFunctions.pyi.in',
**env,
})
gen_nn_functional(fm)
def gen_nn_functional(fm: FileManager) -> None:
# Functions imported into `torch.nn.functional` from `torch`, perhaps being filtered
# through an `_add_docstr` call
imports = [
'conv1d',
'conv2d',
'conv3d',
'conv_transpose1d',
'conv_transpose2d',
'conv_transpose3d',
'conv_tbc',
'avg_pool1d',
'relu_',
'selu_',
'celu_',
'rrelu_',
'pixel_shuffle',
'pixel_unshuffle',
'channel_shuffle',
'native_channel_shuffle',
'pdist',
'cosine_similarity',
]
# Functions generated by `torch._jit_internal.boolean_dispatch`
dispatches = [
'fractional_max_pool2d',
'fractional_max_pool3d',
'max_pool1d',
'max_pool2d',
'max_pool3d',
'adaptive_max_pool1d',
'adaptive_max_pool2d',
'adaptive_max_pool3d',
]
# Functions directly imported from `torch._C`
from_c = [
'avg_pool2d',
'avg_pool3d',
'hardtanh_',
'elu_',
'leaky_relu_',
'logsigmoid',
'softplus',
'softshrink',
'one_hot',
]
import_code = ["from .. import {0} as {0}".format(_) for _ in imports]
# TODO make these types more precise
dispatch_code = ["{}: Callable".format(_) for _ in (dispatches + from_c)]
fm.write_with_template('torch/nn/functional.pyi', 'torch/nn/functional.pyi.in', lambda: {
'imported_hints': import_code,
'dispatched_hints': dispatch_code,
})
# functional.pyi already contains the definitions for those functions
# so, we don't export then to it
from_c.extend(['hardtanh', 'leaky_relu', 'hardsigmoid'])
dispatch_code = ["{}: Callable".format(_) for _ in (dispatches + from_c)]
fm.write_with_template('torch/_C/_nn.pyi', 'torch/_C/_nn.pyi.in', lambda: {
'imported_hints': import_code,
'dispatched_hints': dispatch_code,
})
def gen_dispatcher_registrations(
fm: FileManager,
output_dir: str,
class_name: str,
cpp_namespace: str,
backend_indices: Dict[DispatchKey, BackendIndex],
grouped_native_functions: Sequence[Union[NativeFunction,
NativeFunctionsGroup]],
backend_dispatch_key: DispatchKey,
dispatch_key: DispatchKey,
selector: 'SelectiveBuilder',
# build_in_tree is true for lazy TS backend and affects include paths, not used for external backends
build_in_tree: bool = False,
per_operator_headers: bool = False) -> None:
headers = [
f"{output_dir}/{backend_dispatch_key}NativeFunctions.h",
]
if build_in_tree:
external_backend_headers_str = "\n".join(f'#include <{h}>'
for h in headers)
else:
external_backend_headers_str = "\n".join(f'#include "{h}"'
for h in headers)
assert class_name is not None
backend_index = backend_indices[dispatch_key]
fm.write_with_template(
f'Register{dispatch_key}.cpp', 'RegisterDispatchKey.cpp', lambda: {
'extra_cuda_headers':
'',
'external_backend_headers':
external_backend_headers_str,
'ops_headers':
'#include <ATen/Functions.h>' if not per_operator_headers else '',
'DispatchKey':
dispatch_key,
'dispatch_namespace':
dispatch_key.lower(),
'dispatch_headers':
dest.gen_registration_headers(backend_index,
per_operator_headers=
per_operator_headers,
rocm=False),
'dispatch_helpers':
dest.gen_registration_helpers(backend_index),
'dispatch_namespaced_definitions':
'',
'dispatch_anonymous_definitions':
list(
concatMap(
dest.RegisterDispatchKey(backend_index,
Target.ANONYMOUS_DEFINITION,
selector,
rocm=False,
cpp_namespace=cpp_namespace,
class_method_name=f'{class_name}',
skip_dispatcher_op_registration=
False), grouped_native_functions)
),
'dispatch_registrations':
list(
concatMap(
dest.RegisterDispatchKey(backend_index,
Target.REGISTRATION,
selector,
rocm=False,
cpp_namespace=cpp_namespace,
class_method_name=f'{class_name}',
skip_dispatcher_op_registration=
False), grouped_native_functions)
),
})
def gen_dispatcher_registrations(
fm: FileManager,
output_dir: str,
class_name: str,
cpp_namespace: str,
backend_indices: Dict[DispatchKey, BackendIndex],
grouped_native_functions: Sequence[Union[NativeFunction,
NativeFunctionsGroup]],
backend_dispatch_key: DispatchKey,
dispatch_key: DispatchKey,
selector: 'SelectiveBuilder',
# build_in_tree is true for lazy TS backend and affects include paths, not used for external backends
build_in_tree: bool = False,
per_operator_headers: bool = False,
backend_name: str = "",
eager_registration: bool = True) -> None:
headers = [
f"{output_dir}/{backend_dispatch_key}NativeFunctions.h",
]
if build_in_tree:
external_backend_headers_str = "\n".join(f'#include <{h}>'
for h in headers)
else:
external_backend_headers_str = "\n".join(f'#include "{h}"'
for h in headers)
assert class_name is not None
backend_index = backend_indices[dispatch_key]
dispatch_registrations_body = list(
concatMap(
dest.RegisterDispatchKey(backend_index,
Target.REGISTRATION,
selector,
rocm=False,
cpp_namespace=cpp_namespace,
class_method_name=f'{class_name}',
skip_dispatcher_op_registration=False),
grouped_native_functions))
deferred_dispatch_registrations = ""
static_init_dispatch_registrations = ""
if eager_registration:
static_template = CodeTemplate("""\
TORCH_LIBRARY_IMPL(aten, $dispatch_key, m) {
$dispatch_registrations_body
};""")
static_init_dispatch_registrations = static_template.substitute(
dispatch_key=dispatch_key,
dispatch_registrations_body=dispatch_registrations_body)
else:
deferred_template = CodeTemplate("""\
TORCH_API void Register${backend_name}${dispatch_key}NativeFunctions() {
static auto m = MAKE_TORCH_LIBRARY_IMPL(aten, $dispatch_key);
$dispatch_registrations_body
}""")
deferred_dispatch_registrations = deferred_template.substitute(
backend_name=backend_name,
dispatch_key=dispatch_key,
dispatch_registrations_body=dispatch_registrations_body)
fm.write_with_template(
f'Register{dispatch_key}.cpp', 'RegisterDispatchKey.cpp', lambda: {
'static_init_dispatch_registrations':
static_init_dispatch_registrations,
'deferred_dispatch_registrations':
deferred_dispatch_registrations,
'extra_cuda_headers':
'',
'external_backend_headers':
external_backend_headers_str,
'ops_headers':
'#include <ATen/Functions.h>' if not per_operator_headers else '',
'DispatchKey':
dispatch_key,
'dispatch_namespace':
dispatch_key.lower(),
'dispatch_headers':
dest.gen_registration_headers(backend_index,
per_operator_headers=
per_operator_headers,
rocm=False),
'dispatch_helpers':
dest.gen_registration_helpers(backend_index),
'dispatch_namespaced_definitions':
'',
'dispatch_anonymous_definitions':
list(
concatMap(
dest.RegisterDispatchKey(backend_index,
Target.ANONYMOUS_DEFINITION,
selector,
rocm=False,
cpp_namespace=cpp_namespace,
class_method_name=f'{class_name}',
skip_dispatcher_op_registration=
False), grouped_native_functions)
),
})