in startCoroutineUninterceptedOrReturn. Otherwise, the coroutine will
not be interceptable later.
Add a test, which checks, that intercepted continuation is released.
#KT-55869
This reverts commit b09561c3c3.
It was decided to postpone this warning till 1.9
This is needed to provide proper IDE support
^KT-40904 Open
^KT-55177 Open
Initially, it was added accidentally as part of e3f987459c
and missed all out processes.
Adding @SinceKotlin("1.7") after the annotation has already been
published before is not really a problem, because it only may be used
with an experimental `-Xcontext-receivers` flag, thus it doesn't have
to be a part of our regular backward compatibility routine.
^KT-55226 Fixed
Motivation:
Users often expect simple patterns, like `[a]+` or `[^a]+`, to work fast
and without any problems, even with long strings.
Char class from the first pattern matches only 'a' and gets wrapped into
LeafQuantifierSet, and works fine with long strings indeed.
Char class from the second pattern, however, matches any character
except 'a', including supplementary code points. So, the number of chars
it consumes is not known beforehand. There is no optimization for such
char classes, and if they are matched multiple times, the stack memory
gets exhausted.
Modification:
Introduce FixedLengthQuantifierSet node.
The node represents quantifier over constructs that consume a fixed
amount of characters for a given string and index. Such constructs don't
need backtracking to find a different match. Thus, it is possible for
the node to avoid recursion when matching multiple times.
Result:
Fixes KT-46211, KT-35508 and probably KT-39789. Reproducer for the
latter issue is no longer available, but error stacktrace resembles
those of the other issues.
Motivation:
Calling AbstractCharClass.setNegative always leads to
mayContainSupplCodepoints being `true`, even when `alt` is already
equal to the argument. Given that CharClass always calls setNegative
with its constructor parameter - `negative`, mayContainSupplCodepoints
always gets set. i.e. `[a]` will have mayContainSupplCodepoints set.
mayContainSupplCodepoints affects what node (RangeSet or SupplementaryRangeSet)
wraps this char class. See Pattern.processRangeSet.
RangeSet is better optimized and avoids recursion when it is quantified.
Modification:
Set `mayContainSupplCodepoints` flag only when `alt` is updated.
When `alt` is updated, this char class gets inverted, hence now may
contain supplementary code points.
Otherwise, content of this char class does not change, i.e. no new
supplementary code points is added.
Result:
Fixes KT-46211.
Svyatoslav Kuzmich