diff options
| -rw-r--r-- | mesonbuild/arglist.py | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/mesonbuild/arglist.py b/mesonbuild/arglist.py index 34456581f..2e2542ef9 100644 --- a/mesonbuild/arglist.py +++ b/mesonbuild/arglist.py @@ -97,6 +97,12 @@ class CompilerArgs(T.MutableSequence[str]): def __init__(self, compiler: T.Union['Compiler', 'StaticLinker'], iterable: T.Optional[T.Iterable[str]] = None): self.compiler = compiler + + if isinstance(iterable, CompilerArgs): + iterable.flush_pre_post() + # list(iter(x)) is over two times slower than list(x), so + # pass the underlying list to list() directly, instead of an iterator + iterable = iterable._container self._container: T.List[str] = list(iterable) if iterable is not None else [] self.pre: T.Deque[str] = collections.deque() self.post: T.Deque[str] = collections.deque() @@ -140,6 +146,7 @@ class CompilerArgs(T.MutableSequence[str]): self.post.clear() def __iter__(self) -> T.Iterator[str]: + # see also __init__, where this method is essentially inlined self.flush_pre_post() return iter(self._container) |