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: Dict[FunctionSchema, Dict[str, 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.
"""
# get a 1D list of diffinfos, we do not need them to be per FunctionSchema/DispatchKey here
# infos with the diff dispatchkeys but the same name will still be in the same shard.
infos = get_infos_with_derivatives_list(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 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] = []
ops_headers: 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))
ops_headers.append(f"#include <ATen/ops/{name.base}.h>")
fm.write_with_template(
filename,
filename,
lambda: {
"generated_comment": "@" + f"generated from {fm.template_dir}/{filename}",
"ops_headers": ops_headers,
"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],
backend_name: str = "",
) -> 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,
"BackendName": backend_name,
"DispatchKey": backend_dispatch_key,
},
)
def gen_variable_factories(
out: str, native_yaml_path: str, tags_yaml_path: str, template_path: str
) -> None:
native_functions = parse_native_yaml(
native_yaml_path, tags_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_annotated(native_yaml_path: str, tags_yaml_path: str, out: str,
autograd_dir: str) -> None:
native_functions = parse_native_yaml(native_yaml_path,
tags_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_pyi(
native_yaml_path: str,
tags_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)
for n, n1, n2 in [
("csr", "crow", "col"),
("csc", "ccol", "row"),
("bsr", "crow", "col"),
("bsc", "ccol", "row"),
]:
unsorted_function_hints.update({
f"sparse_{n}_tensor": [
f"def sparse_{n}_tensor({n1}_indices: Union[Tensor, List],"
f"{n2}_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: ..."
],
f"_sparse_{n}_tensor_unsafe": [
f"def _sparse_{n}_tensor_unsafe({n1}_indices: Union[Tensor, List],"
f"{n2}_indices: Union[Tensor, List],"
" values: Union[Tensor, List], size: List[int],"
" dtype: Optional[_dtype] = None, device: Optional[_device] = None,"
" requires_grad: bool = False) -> Tensor: ..."
],
})
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_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_compressed_tensor": [
"def sparse_compressed_tensor(compressed_indices: Union[Tensor, List],"
"plain_indices: Union[Tensor, List],"
" values: Union[Tensor, List], size: Optional[_size]=None,"
" *, dtype: Optional[_dtype]=None, layout: Optional[_layout] = None,"
" device: Union[_device, str, None]=None, requires_grad:_bool=False) -> Tensor: ..."
],
"_sparse_compressed_tensor_unsafe": [
"def _sparse_compressed_tensor_unsafe(comp_indices: Union[Tensor, List],"
"plain_indices: Union[Tensor, List],"
" values: Union[Tensor, List], size: List[int],"
" dtype: Optional[_dtype] = None, layout: Optional[_layout] = None,"
" device: Optional[_device] = None,"
" requires_grad: bool = False) -> Tensor: ..."
],
"_is_functional_tensor":
["def _is_functional_tensor(t: Tensor) -> _bool: ..."],
"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,
tags_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 = returns_named_tuple_pyi(group.signature)
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, dispatch_strides: _bool=False,"
" dispatch_device: _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_nested": ["is_nested: _bool"],
"is_sparse": ["is_sparse: _bool"],
"is_sparse_csr": ["is_sparse_csr: _bool"],
"is_quantized": ["is_quantized: _bool"],
"is_meta": ["is_meta: _bool"],
"is_mps": ["is_mps: _bool"],
"is_ort": ["is_ort: _bool"],
"is_mkldnn": ["is_mkldnn: _bool"],
"is_vulkan": ["is_vulkan: _bool"],
"is_ipu": ["is_ipu: _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 = returns_named_tuple_pyi(group.signature)
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
# ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
legacy_storage_base_hints = ["class StorageBase(object): ..."]
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,
},
)
fm.write_with_template(
"torch/return_types.pyi",
"torch/_C/return_types.pyi.in",
lambda: {
"generated_comment": "@" +
"generated from torch/_C/return_types.pyi",
**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,
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,
class_method_name=f"{class_name}",
skip_dispatcher_op_registration=False,
),
grouped_native_functions,
))
newline = "\n"
ns_helper = NamespaceHelper(namespace_str="at")
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: {
"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_definitions":
fm.substitute_with_template(
"RegisterDispatchDefinitions.ini",
lambda: {
"ns_prologue":
ns_helper.prologue,
"ns_epilogue":
ns_helper.epilogue,
"static_init_dispatch_registrations":
static_init_dispatch_registrations,
"deferred_dispatch_registrations":
deferred_dispatch_registrations,
"dispatch_helpers":
dest.gen_registration_helpers(backend_index),
"dispatch_namespace":
dispatch_key.lower(),
"dispatch_namespaced_definitions":
"",
"dispatch_anonymous_definitions":
list(
concatMap(
dest.RegisterDispatchKey(
backend_index,
Target.ANONYMOUS_DEFINITION,
selector,
rocm=False,
class_method_name=f"{class_name}",
skip_dispatcher_op_registration=False,
),
grouped_native_functions,
)),
},
).split(newline),
},
)