import static com.google.common.base.Verify.verifyNotNull;
import static java.util.Objects.requireNonNull;
-import com.google.common.base.VerifyException;
import com.google.common.collect.ImmutableCollection;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMultimap;
import java.util.Optional;
import java.util.stream.Stream;
import org.eclipse.jdt.annotation.NonNull;
+import org.eclipse.jdt.annotation.Nullable;
import org.opendaylight.yangtools.yang.common.QNameModule;
import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
*/
private byte executionOrder;
- /**
- * This field should live in AbstractResumedStatement, but is placed here for memory efficiency to squat in the
- * alignment shadow of {@link #bitsAight} and {@link #executionOrder}.
- */
- private boolean implicitDeclaredFlag;
-
// TODO: we a single byte of alignment shadow left, we should think how we can use it to cache information we build
- // during buildEffective()
+ // during InferredStatementContext.tryToReusePrototype(). We usually end up being routed to
+ // copyAsChildOfImpl() -- which performs an eager instantiation and checks for changes afterwards. We should
+ // be able to capture how parent scope affects the copy in a few bits. If we can do that, than we can reap
+ // the benefits by just examining new parent context and old parent context contribution to the state. If
+ // their impact is the same, we can skip instantiation of statements and directly reuse them (individually,
+ // or as a complete file).
+ //
+ // Whatever we end up tracking, we need to track two views of that -- for the statement itself
+ // (sans substatements) and a summary of substatements. I think it should be possible to get this working
+ // with 2x5bits -- we have up to 15 mutable bits available if we share the field with implicitDeclaredFlag.
// Copy constructor used by subclasses to implement reparent()
StatementContextBase(final StatementContextBase<A, D, E> original) {
}
private static byte historyFlags(final CopyType copyType) {
- switch (copyType) {
- case ADDED_BY_AUGMENTATION:
- return COPY_ADDED_BY_AUGMENTATION;
- case ADDED_BY_USES:
- return COPY_ADDED_BY_USES;
- case ADDED_BY_USES_AUGMENTATION:
- return COPY_ADDED_BY_AUGMENTATION | COPY_ADDED_BY_USES;
- case ORIGINAL:
- return COPY_ORIGINAL;
- default:
- throw new VerifyException("Unhandled type " + copyType);
- }
+ return switch (copyType) {
+ case ADDED_BY_AUGMENTATION -> COPY_ADDED_BY_AUGMENTATION;
+ case ADDED_BY_USES -> COPY_ADDED_BY_USES;
+ case ADDED_BY_USES_AUGMENTATION -> COPY_ADDED_BY_AUGMENTATION | COPY_ADDED_BY_USES;
+ case ORIGINAL -> COPY_ORIGINAL;
+ };
}
@Override
@Override
public final <X, Y extends DeclaredStatement<X>, Z extends EffectiveStatement<X, Y>>
- Mutable<X, Y, Z> addUndeclaredSubstatement(final StatementSupport<X, Y, Z> support, final X arg) {
+ Mutable<X, Y, Z> createUndeclaredSubstatement(final StatementSupport<X, Y, Z> support, final X arg) {
requireNonNull(support);
checkArgument(support instanceof UndeclaredStatementFactory, "Unsupported statement support %s", support);
final var ret = new UndeclaredStmtCtx<>(this, support, arg);
support.onStatementAdded(ret);
- addEffectiveSubstatement(ret);
return ret;
}
return resized;
}
+ static final void afterAddEffectiveSubstatement(final Mutable<?, ?, ?> substatement) {
+ // Undeclared statements still need to have 'onDeclarationFinished()' triggered
+ if (substatement instanceof UndeclaredStmtCtx) {
+ finishDeclaration((UndeclaredStmtCtx<?, ?, ?>) substatement);
+ }
+ }
+
+ // Split out to keep generics working without a warning
+ private static <X, Y extends DeclaredStatement<X>, Z extends EffectiveStatement<X, Y>> void finishDeclaration(
+ final UndeclaredStmtCtx<X, Y, Z> substatement) {
+ substatement.definition().onDeclarationFinished(substatement, ModelProcessingPhase.FULL_DECLARATION);
+ }
+
@Override
public final void addEffectiveSubstatements(final Collection<? extends Mutable<?, ?, ?>> statements) {
if (!statements.isEmpty()) {
abstract @NonNull E createEffective(@NonNull StatementFactory<A, D, E> factory);
- /**
- * Routing of the request to build an effective statement from {@link InferredStatementContext} towards the original
- * definition site. This is needed to pick the correct instantiation method: for declared statements we will
- * eventually land in {@link AbstractResumedStatement}, for underclared statements that will be
- * {@link UndeclaredStmtCtx}.
- *
- * @param factory Statement factory
- * @param ctx Inferred statement context, i.e. where the effective statement is instantiated
- * @return Built effective stateue
- */
- abstract @NonNull E createInferredEffective(@NonNull StatementFactory<A, D, E> factory,
- @NonNull InferredStatementContext<A, D, E> ctx);
-
/**
* Return a stream of declared statements which can be built into an {@link EffectiveStatement}, as per
* {@link StmtContext#buildEffective()} contract.
return Optional.ofNullable(copyAsChildOfImpl(parent, type, targetModule));
}
- private ReactorStmtCtx<A, D, E> copyAsChildOfImpl(final Mutable<?, ?, ?> parent, final CopyType type,
+ private
@Nullable ReactorStmtCtx<A, D, E> copyAsChildOfImpl(final Mutable<?, ?, ?> parent, final CopyType type,
final QNameModule targetModule) {
final StatementSupport<A, D, E> support = definition.support();
final CopyPolicy policy = support.copyPolicy();
return null;
}
- parent.ensureCompletedPhase(copy);
+ parent.ensureCompletedExecution(copy);
return canReuseCurrent(copy) ? this : copy;
}
- private boolean canReuseCurrent(final ReactorStmtCtx<A, D, E> copy) {
+ private boolean canReuseCurrent(final
@NonNull ReactorStmtCtx<A, D, E> copy) {
// Defer to statement factory to see if we can reuse this object. If we can and have only context-independent
// substatements we can reuse the object. More complex cases are handled indirectly via the copy.
return definition.getFactory().canReuseCurrent(copy, this, buildEffective().effectiveSubstatements())
if (implicitParent.isPresent()) {
result = new UndeclaredStmtCtx(this, implicitParent.orElseThrow(), original, type);
- final CopyType childCopyType;
- switch (type) {
- case ADDED_BY_AUGMENTATION:
- childCopyType = CopyType.ORIGINAL;
- break;
- case ADDED_BY_USES_AUGMENTATION:
- childCopyType = CopyType.ADDED_BY_USES;
- break;
- case ADDED_BY_USES:
- case ORIGINAL:
- default:
- childCopyType = type;
- }
-
+ final CopyType childCopyType = switch (type) {
+ case ADDED_BY_AUGMENTATION -> CopyType.ORIGINAL;
+ case ADDED_BY_USES_AUGMENTATION -> CopyType.ADDED_BY_USES;
+ case ADDED_BY_USES, ORIGINAL -> type;
+ };
copy = new InferredStatementContext<>(result, original, childCopyType, type, targetModule);
result.addEffectiveSubstatement(copy);
+ result.definition.onStatementAdded(result);
} else {
result = copy = new InferredStatementContext<>(this, original, type, type, targetModule);
}
* @return True if {@link #allSubstatements()} and {@link #allSubstatementsStream()} would return an empty stream.
*/
abstract boolean hasEmptySubstatements();
-
- // Note: these two are exposed for AbstractResumedStatement only
- final boolean getImplicitDeclaredFlag() {
- return implicitDeclaredFlag;
- }
-
- final void setImplicitDeclaredFlag() {
- implicitDeclaredFlag = true;
- }
}
Code Review / yangtools.git / blobdiff