wehub-resource-sync
52 lines
2.1 KiB
Python
52 lines
2.1 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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"""The parser subpackage of TVMScript.
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Per-dialect parser submodules (``tvm.script.parser.tirx``, etc.) are
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resolved lazily via :data:`tvm.script._DIALECT_REGISTRY`. When a dialect
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is accessed (e.g. ``tvm.script.parser.tirx``), this subpackage's
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``__getattr__`` looks up the dialect in ``_DIALECT_REGISTRY`` and imports
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``<dialect_module_path>.parser`` (e.g. ``tvm.tirx.script.parser``),
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caching the result so subsequent accesses skip ``__getattr__``.
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The IR layer is foundational and is NOT registered as a dialect — its
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parser lives as a real submodule ``tvm.script.parser.ir``, with
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``ir_module`` re-exported at this level for convenience.
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See :mod:`tvm.script` for a full description of the dialect resolution
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mechanism, including the ``_DialectRedirectFinder`` that handles
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deep statement-form imports.
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"""
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import importlib
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from typing import Any
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from . import _core, ir, tirx
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from ._core import parse
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from .ir import ir_module
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def __getattr__(name: str) -> Any:
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# Lazy import to avoid loading tvm.script during dialect bootstrap.
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from tvm.script import _DIALECT_REGISTRY # pylint: disable=import-outside-toplevel
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if name in _DIALECT_REGISTRY:
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module = importlib.import_module(f"{_DIALECT_REGISTRY[name]}.parser")
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globals()[name] = module
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return module
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raise AttributeError(f"module 'tvm.script.parser' has no attribute {name!r}")
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