refactor: move is_XXX from ak._do to ak._meta

src/awkward/_do/meta.py

@@ -3,67 +3,13 @@
 from __future__ import annotations
 
 from awkward._nplikes.numpy_like import NumpyMetadata
-from awkward._typing import TYPE_CHECKING, TypeGuard, TypeVar
+from awkward._typing import TYPE_CHECKING
 
 if TYPE_CHECKING:
-    from awkward._meta.bitmaskedmeta import BitMaskedMeta
-    from awkward._meta.bytemaskedmeta import ByteMaskedMeta
-    from awkward._meta.indexedmeta import IndexedMeta
-    from awkward._meta.indexedoptionmeta import IndexedOptionMeta
-    from awkward._meta.listmeta import ListMeta
-    from awkward._meta.listoffsetmeta import ListOffsetMeta
     from awkward._meta.meta import Meta
-    from awkward._meta.numpymeta import NumpyMeta
-    from awkward._meta.recordmeta import RecordMeta
-    from awkward._meta.regularmeta import RegularMeta
-    from awkward._meta.unionmeta import UnionMeta
-    from awkward._meta.unmaskedmeta import UnmaskedMeta
 
 np = NumpyMetadata.instance()
 
 
-T = TypeVar("T", bound="Meta")
-
-
-def is_option(
-    meta: Meta
-) -> TypeGuard[IndexedOptionMeta | BitMaskedMeta | ByteMaskedMeta | UnmaskedMeta]:
-    return meta.is_option
-
-
-def is_list(meta: Meta) -> TypeGuard[RegularMeta | ListOffsetMeta | ListMeta]:
-    return meta.is_list
-
-
-def is_numpy(meta: Meta) -> TypeGuard[NumpyMeta]:
-    return meta.is_numpy
-
-
-def is_regular(meta: Meta) -> TypeGuard[RegularMeta]:
-    return meta.is_regular
-
-
-def is_union(meta: Meta) -> TypeGuard[UnionMeta]:
-    return meta.is_union
-
-
-def is_record(meta: Meta) -> TypeGuard[RecordMeta]:
-    return meta.is_record
-
-
-def is_indexed(meta: Meta) -> TypeGuard[IndexedOptionMeta, IndexedMeta]:
-    return meta.is_indexed
-
-
-# FIXME: narrow this to have `is_tuple` be a const True
-def is_record_tuple(meta: Meta) -> TypeGuard[RecordMeta]:
-    return meta.is_record and meta.is_tuple
-
-
-# FIXME: narrow this to have `is_tuple` be a const False
-def is_record_record(meta: Meta) -> TypeGuard[RecordMeta]:
-    return meta.is_record and not meta.is_tuple
-
-
 def mergeable(one: Meta, two: Meta, mergebool: bool = True) -> bool:
     return one._mergeable_next(two, mergebool=mergebool)

src/awkward/_meta/bitmaskedmeta.py

@@ -2,8 +2,7 @@
 
 from __future__ import annotations
 
-from awkward._do.meta import is_indexed, is_option
-from awkward._meta.meta import Meta
+from awkward._meta.meta import Meta, is_indexed, is_option
 from awkward._parameters import type_parameters_equal
 from awkward._typing import JSONSerializable
 

src/awkward/_meta/bytemaskedmeta.py

@@ -2,8 +2,7 @@
 
 from __future__ import annotations
 
-from awkward._do.meta import is_indexed, is_option
-from awkward._meta.meta import Meta
+from awkward._meta.meta import Meta, is_indexed, is_option
 from awkward._parameters import type_parameters_equal
 from awkward._typing import JSONSerializable
 

src/awkward/_meta/indexedmeta.py

@@ -2,8 +2,7 @@
 
 from __future__ import annotations
 
-from awkward._do.meta import is_indexed, is_option
-from awkward._meta.meta import Meta
+from awkward._meta.meta import Meta, is_indexed, is_option
 from awkward._parameters import type_parameters_equal
 from awkward._typing import JSONSerializable
 

src/awkward/_meta/indexedoptionmeta.py

@@ -2,8 +2,7 @@
 
 from __future__ import annotations
 
-from awkward._do.meta import is_indexed, is_option
-from awkward._meta.meta import Meta
+from awkward._meta.meta import Meta, is_indexed, is_option
 from awkward._parameters import type_parameters_equal
 from awkward._typing import JSONSerializable
 

src/awkward/_meta/listmeta.py

@@ -2,8 +2,7 @@
 
 from __future__ import annotations
 
-from awkward._do.meta import is_indexed, is_list, is_numpy, is_option
-from awkward._meta.meta import Meta
+from awkward._meta.meta import Meta, is_indexed, is_list, is_numpy, is_option
 from awkward._parameters import type_parameters_equal
 from awkward._typing import JSONSerializable
 

src/awkward/_meta/listoffsetmeta.py

@@ -2,8 +2,7 @@
 
 from __future__ import annotations
 
-from awkward._do.meta import is_indexed, is_list, is_numpy, is_option
-from awkward._meta.meta import Meta
+from awkward._meta.meta import Meta, is_indexed, is_list, is_numpy, is_option
 from awkward._parameters import type_parameters_equal
 from awkward._typing import JSONSerializable
 

src/awkward/_meta/meta.py

@@ -3,13 +3,68 @@
 from __future__ import annotations
 
 from awkward._typing import (
+    TYPE_CHECKING,
     ClassVar,
     JSONMapping,
     JSONSerializable,
     Self,
+    TypeGuard,
 )
 from awkward._util import UNSET, Sentinel
 
+if TYPE_CHECKING:
+    from awkward._meta.bitmaskedmeta import BitMaskedMeta
+    from awkward._meta.bytemaskedmeta import ByteMaskedMeta
+    from awkward._meta.indexedmeta import IndexedMeta
+    from awkward._meta.indexedoptionmeta import IndexedOptionMeta
+    from awkward._meta.listmeta import ListMeta
+    from awkward._meta.listoffsetmeta import ListOffsetMeta
+    from awkward._meta.numpymeta import NumpyMeta
+    from awkward._meta.recordmeta import RecordMeta
+    from awkward._meta.regularmeta import RegularMeta
+    from awkward._meta.unionmeta import UnionMeta
+    from awkward._meta.unmaskedmeta import UnmaskedMeta
+
+
+def is_option(
+    meta: Meta
+) -> TypeGuard[IndexedOptionMeta | BitMaskedMeta | ByteMaskedMeta | UnmaskedMeta]:
+    return meta.is_option
+
+
+def is_list(meta: Meta) -> TypeGuard[RegularMeta | ListOffsetMeta | ListMeta]:
+    return meta.is_list
+
+
+def is_numpy(meta: Meta) -> TypeGuard[NumpyMeta]:
+    return meta.is_numpy
+
+
+def is_regular(meta: Meta) -> TypeGuard[RegularMeta]:
+    return meta.is_regular
+
+
+def is_union(meta: Meta) -> TypeGuard[UnionMeta]:
+    return meta.is_union
+
+
+def is_record(meta: Meta) -> TypeGuard[RecordMeta]:
+    return meta.is_record
+
+
+def is_indexed(meta: Meta) -> TypeGuard[IndexedOptionMeta | IndexedMeta]:
+    return meta.is_indexed
+
+
+# FIXME: narrow this to have `is_tuple` be a const True
+def is_record_tuple(meta: Meta) -> TypeGuard[RecordMeta]:
+    return meta.is_record and meta.is_tuple
+
+
+# FIXME: narrow this to have `is_tuple` be a const False
+def is_record_record(meta: Meta) -> TypeGuard[RecordMeta]:
+    return meta.is_record and not meta.is_tuple
+
 
 class Meta:
     is_numpy: ClassVar[bool] = False

src/awkward/_meta/numpymeta.py

@@ -2,8 +2,7 @@
 
 from __future__ import annotations
 
-from awkward._do.meta import is_indexed, is_numpy, is_option
-from awkward._meta.meta import Meta
+from awkward._meta.meta import Meta, is_indexed, is_numpy, is_option
 from awkward._nplikes.numpy_like import NumpyMetadata
 from awkward._nplikes.shape import ShapeItem
 from awkward._parameters import type_parameters_equal

src/awkward/_meta/recordmeta.py

@@ -2,14 +2,14 @@
 
 from __future__ import annotations
 
-from awkward._do.meta import (
+from awkward._meta.meta import (
+    Meta,
     is_indexed,
     is_option,
     is_record,
     is_record_record,
     is_record_tuple,
 )
-from awkward._meta.meta import Meta
 from awkward._parameters import type_parameters_equal
 from awkward._regularize import is_integer
 from awkward._typing import JSONSerializable

src/awkward/_meta/regularmeta.py

@@ -2,8 +2,7 @@
 
 from __future__ import annotations
 
-from awkward._do.meta import is_indexed, is_list, is_numpy, is_option
-from awkward._meta.meta import Meta
+from awkward._meta.meta import Meta, is_indexed, is_list, is_numpy, is_option
 from awkward._nplikes.shape import ShapeItem
 from awkward._parameters import type_parameters_equal
 from awkward._typing import JSONSerializable

src/awkward/_meta/unmaskedmeta.py

@@ -2,8 +2,7 @@
 
 from __future__ import annotations
 
-from awkward._do.meta import is_indexed, is_option
-from awkward._meta.meta import Meta
+from awkward._meta.meta import Meta, is_indexed, is_option
 from awkward._parameters import type_parameters_equal
 from awkward._typing import JSONSerializable