protected BuildingState(boolean isChanged, GroupedList<SkyKey> lastBuildDirectDeps) {
this.lastBuildDirectDeps = lastBuildDirectDeps;
Preconditions.checkState(
isChanged || !this.lastBuildDirectDeps.isEmpty(),
"%s is being marked dirty, not changed, but has no children that could have dirtied it",
this);
dirtyState = isChanged ? DirtyState.NEEDS_REBUILDING : DirtyState.CHECK_DEPENDENCIES;
// We need to iterate through the deps to see if they have changed, or to remove them if one
// has. Initialize the iterator.
dirtyDirectDepIterator = lastBuildDirectDeps.iterator();
}
/**
* Removes a set of deps from the set of known direct deps. This is complicated by the need to
* maintain the group data. If we remove a dep that ended a group, then its predecessor's group
* data must be changed to indicate that it now ends the group.
*
* @see NodeEntry#removeUnfinishedDeps
*/
void removeDirectDeps(Set<SkyKey> unfinishedDeps) {
directDeps.remove(unfinishedDeps);
}
/**
* Returns the direct deps found so far on this build. Should only be called before the node has
* finished building.
*
* @see NodeEntry#getTemporaryDirectDeps()
*/
Set<SkyKey> getDirectDepsForBuild() {
return directDeps.toSet();
}
void addDirectDeps(GroupedListHelper<SkyKey> depsThisRun) {
directDeps.append(depsThisRun);
}
boolean noDepsLastBuild() {
return lastBuildDirectDeps.isEmpty();
}
/**
* Returns true if the deps requested during this evaluation are exactly those requested the last
* time this node was built, in the same order.
*/
boolean depsUnchangedFromLastBuild() {
checkFinishedBuildingWhenAboutToSetValue();
return lastBuildDirectDeps.equals(directDeps);
}
/**
* Returns true if {@code newValue}.equals the value from the last time this node was built, and
* the deps requested during this evaluation are exactly those requested the last time this node
* was built, in the same order. Should only be used by {@link NodeEntry#setValue}.
*/
boolean unchangedFromLastBuild(SkyValue newValue) {
checkFinishedBuildingWhenAboutToSetValue();
return getLastBuildValue().equals(newValue) && lastBuildDirectDeps.equals(directDeps);
}
/** Returns whether all known children of this node have signaled that they are done. */
boolean isReady() {
int directDepsSize = directDeps.size();
Preconditions.checkState(signaledDeps <= directDepsSize, "%s %s", directDepsSize, this);
return signaledDeps == directDepsSize;
}
/**
* Remove all elements of toRemove from this list. It is a fatal error if any elements of
* toRemove are not present. Takes time proportional to the size of the list, so should not be
* called often.
*/
public void remove(Set<E> toRemove) {
groupedList = GroupedList.remove(groupedList, toRemove);
int oldSize = size();
elements.removeAll(toRemove);
Preconditions.checkState(oldSize == size() + toRemove.size(), "%s %s", toRemove, this);
}