final class SuppressableSeparatorUnparserSuspendableOperation extends SuspendableOperation with StreamSplitter
Performance Note: This can be a very special purpose suspension. Unlike the suspensions for dfdl:outputValueCalc, a separator expression can only look backwards to data that is already known. Hence, we can evaluate the separator, and just cache it, and when we decide to unsuspend this, we either blat out that cached data or not. But we need none of the state needed to unparse or evaluate expressions.
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Instance Constructors
- new SuppressableSeparatorUnparserSuspendableOperation(sepUnparser: Unparser, rd: TermRuntimeData)
Value Members
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final
def
!=(arg0: Any): Boolean
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final
def
##(): Int
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def
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def
UE(ustate: UState, s: String, args: Any*): Nothing
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final
def
areLogging(lvl: Type): Boolean
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def
asInstanceOf[T0]: T0
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final
def
block(nodeOrVar: AnyRef, info: AnyRef, index: Long, exc: AnyRef): Unit
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final
def
blockedLocation: String
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- Suspension
- def captureDOSForEndOfSeparatedRegionBeforePostfixSeparator(s: UState): Unit
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def
captureDOSForStartOfSeparatedRegionBeforePostfixSeparator(s: UState): Unit
Needed for the corner case of suppressing a postfix separator.
Needed for the corner case of suppressing a postfix separator.
Here we need to know whether two regions of data are zero length when dealing with trailingEmpty suppression. The data before the postfix separator must be ZL, and the data to the end of sequence must be ZL. So we have the ability to capture two ranges of buffered data from unparsing.
- def captureStateAtEndOfPotentiallyZeroLengthRegionFollowingTheSeparator(s: UState): Unit
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def
clone(): AnyRef
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def
continuation(state: UState): Unit
Once we know whether the length is zero/non-zero, then we decide to unparse the separator or not.
Once we know whether the length is zero/non-zero, then we decide to unparse the separator or not.
If we're positional and potentially trailing, then this will only be Zero length if we're considering unparsing a trailing separator for an empty, with nothing following. So if ZL, no separator, otherwise we unparse the separator.
- Definition Classes
- SuppressableSeparatorUnparserSuspendableOperation → SuspendableOperation
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def
doLogging(lvl: Type, msg: String, args: Seq[Any]): Unit
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final
def
doTask(ustate: UState): Unit
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final
def
eq(arg0: AnyRef): Boolean
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def
equals(arg0: Any): Boolean
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final
def
explain(): Unit
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finalize(): Unit
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def
getClass(): Class[_]
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def
getDOSFromAtoB(beforeDOS: DataOutputStream, afterDOS: DataOutputStream): Seq[DataOutputStream]
Given two DataOutputStream, determine the set of data output streams starting from the first, and in chain until (and including) we reach the second.
Given two DataOutputStream, determine the set of data output streams starting from the first, and in chain until (and including) we reach the second.
If the two are the same DataOutputStream, we get back a sequence of just the one DOS.
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- StreamSplitter
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def
getLogWriter(): LogWriter
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final
def
getLoggingLevel(): Type
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def
hashCode(): Int
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final
def
isBlocked: Boolean
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def
isDone: Boolean
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def
isInstanceOf[T0]: Boolean
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final
def
isMakingProgress: Boolean
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val
isReadOnly: Boolean
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final macro
def
log(lvl: Type, msg: String, args: Any*): Unit
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lazy val
logID: String
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val
logLevel: Maybe[Type]
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val
logWriter: Maybe[LogWriter]
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def
maybeKnownLengthInBits(ustate: UState): MaybeULong
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def
ne(arg0: AnyRef): Boolean
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def
notify(): Unit
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final
def
notifyAll(): Unit
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val
rd: TermRuntimeData
- Definition Classes
- SuppressableSeparatorUnparserSuspendableOperation → SuspendableOperation → Suspension
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final
def
run(ustate: UState): Unit
- Definition Classes
- Suspension
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final
def
runSuspension(): Unit
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final
def
savedUstate: UState
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final
def
setDone: Unit
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def
setLogWriter(lw: LogWriter): Unit
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def
setLoggingLevel(level: Type): Unit
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final
def
setUnblocked(): Unit
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final
def
synchronized[T0](arg0: ⇒ T0): T0
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def
test(ustate: UState): Boolean
Determine if the decision about whether to suppress or not can be taken.
Determine if the decision about whether to suppress or not can be taken.
A trailing separator may be suppressed if the things after it are zero-length to the end of the sequence.
An anyEmpty separator may be suppressed if the separated thing is zero-length.
This must be determined by examining the buffers of unparsed data. Such time as their length is known to be greater than zero the test will return true. If they are finished and length is still zero the test will also return true. Otherwise they are possibly just temporarily of length zero, so we don't know so we return false and the suspension will be retried later.
- Definition Classes
- SuppressableSeparatorUnparserSuspendableOperation → SuspendableOperation
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def
toString(): String
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final
def
wait(): Unit
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def
wait(arg0: Long, arg1: Int): Unit
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def
wait(arg0: Long): Unit
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macro
def
withLoggingLevel[S](newLevel: Type)(body: ⇒ S): Unit
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