diff options
Diffstat (limited to 'build-aux')
| -rw-r--r-- | build-aux/measurestack/analyze.py | 37 |
1 files changed, 30 insertions, 7 deletions
diff --git a/build-aux/measurestack/analyze.py b/build-aux/measurestack/analyze.py index 0fb20ef..a5ac6e5 100644 --- a/build-aux/measurestack/analyze.py +++ b/build-aux/measurestack/analyze.py @@ -4,6 +4,7 @@ # SPDX-License-Identifier: AGPL-3.0-or-later import re +import sys import typing from . import vcg @@ -22,12 +23,23 @@ __all__ = [ class BaseName: - _content: str + # class ########################################################## + + _interned: dict[str, "BaseName"] = {} - def __init__(self, content: str) -> None: + def __new__(cls, content: str) -> "BaseName": if ":" in content: raise ValueError(f"invalid non-qualified name: {content!r}") - self._content = content + content = sys.intern(content) + if content not in cls._interned: + self = super().__new__(cls) + self._content = content + cls._interned[content] = self + return cls._interned[content] + + # instance ####################################################### + + _content: str def __str__(self) -> str: return self._content @@ -55,13 +67,24 @@ class BaseName: class QName: + # class ########################################################## + + _interned: dict[str, "QName"] = {} + + def __new__(cls, content: str) -> "QName": + content = sys.intern(content) + if content not in cls._interned: + self = super().__new__(cls) + self._content = content + self._base = None + cls._interned[content] = self + return cls._interned[content] + + # instance ####################################################### + _content: str _base: BaseName | None - def __init__(self, content: str) -> None: - self._content = content - self._base = None - def __str__(self) -> str: return self._content |