This commit decouples StdlibUnittest from many details of
[Contiguous]Array, so tests can give useful feedback even in the
presence of a broken [Contiguous]Array implementation while we refactor.
Unfortunately, it wasn't practical to make _UnitTestArray use a
storage class other than _ContiguousArrayStorage[Base], so we still have
to watch out when making changes there.
Swift SVN r22875
ContiguousArray is a simpler component, thus less prone to breakage.
Builting the unit testing framework atop broken components is a very bad
idea, so let's not.
This is a reinstatement of an earlier commit, plus changes to make the
validation tests work.
Swift SVN r22867
ContiguousArray is a simpler component, thus less prone to breakage.
Builting the unit testing framework atop broken components is a very bad
idea, so let's not.
Swift SVN r22769
The syntax being reverted added busywork and noise to the common case
where you want to say "I have the right address, but the wrong type,"
without adding any real safety.
Also it eliminated the ability to write UnsafePointer<T>(otherPointer),
without adding ".self" to T. Overall, it was not a win.
This reverts commits r21324 and r21342
Swift SVN r21424
Previously, it was possible to write Unsafe[Mutable]Pointer(x) and have
Swift deduce the pointee type based on context. Since reinterpreting
memory is a fundamentally type-unsafe operation, it's better to be
explicit about conversions from Unsafe[Mutable]Pointer<T> to
Unsafe[Mutable]Pointer<U>. This change is consistent with the move from
reinterpretCast(x) to unsafeBitCast(x, T.self).
Also, we've encoded the operations of explicitly adding or removing
mutability as properties, so that adding mutability can be separated
from wild reinterpretCast'ing, a much more severe form of unsafety.
Swift SVN r21324
The test harness now can recover after test crashes, allowing:
- check for crashes themselves (without reporting them to the Python lit driver,
which is about 10x slower -- even if CrashTracer is disabled);
- recover from unexpected test crashes and run the rest of the tests;
- this lays the groundwork for assertions that end the test execution, but
allow the rest of the tests to run (rdar://17906801).
Note that we don't spawn a fresh process for every test. We create a child
process and reuse it until it crashes.
Swift SVN r21090
