parser/yang-parser-rfc7950/src/main/java/org/opendaylight/yangtools/yang/parser/rfc7950/stmt/type/AbstractTypeStatementSupport.java

   1 /*
   2  * Copyright (c) 2017 Pantheon Technologies, s.r.o. and others.  All rights reserved.
   3  *
   4  * This program and the accompanying materials are made available under the
   5  * terms of the Eclipse Public License v1.0 which accompanies this distribution,
   6  * and is available at http://www.eclipse.org/legal/epl-v10.html
   7  */
   8 package org.opendaylight.yangtools.yang.parser.rfc7950.stmt.type;
   9
  10 import static com.google.common.base.Verify.verifyNotNull;
  11
  12 import com.google.common.collect.ImmutableList;
  13 import com.google.common.collect.ImmutableMap;
  14 import java.util.Collection;
  15 import java.util.stream.Collectors;
  16 import java.util.stream.Stream;
  17 import org.eclipse.jdt.annotation.NonNull;
  18 import org.opendaylight.yangtools.yang.common.Decimal64;
  19 import org.opendaylight.yangtools.yang.common.Empty;
  20 import org.opendaylight.yangtools.yang.common.QName;
  21 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
  22 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  23 import org.opendaylight.yangtools.yang.model.api.meta.DeclarationReference;
  24 import org.opendaylight.yangtools.yang.model.api.meta.DeclaredStatement;
  25 import org.opendaylight.yangtools.yang.model.api.meta.EffectiveStatement;
  26 import org.opendaylight.yangtools.yang.model.api.stmt.BitEffectiveStatement;
  27 import org.opendaylight.yangtools.yang.model.api.stmt.EnumEffectiveStatement;
  28 import org.opendaylight.yangtools.yang.model.api.stmt.FractionDigitsEffectiveStatement;
  29 import org.opendaylight.yangtools.yang.model.api.stmt.LengthEffectiveStatement;
  30 import org.opendaylight.yangtools.yang.model.api.stmt.PatternEffectiveStatement;
  31 import org.opendaylight.yangtools.yang.model.api.stmt.RangeEffectiveStatement;
  32 import org.opendaylight.yangtools.yang.model.api.stmt.RequireInstanceEffectiveStatement;
  33 import org.opendaylight.yangtools.yang.model.api.stmt.TypeEffectiveStatement;
  34 import org.opendaylight.yangtools.yang.model.api.stmt.TypeStatement;
  35 import org.opendaylight.yangtools.yang.model.api.stmt.TypedefEffectiveStatement;
  36 import org.opendaylight.yangtools.yang.model.api.type.BinaryTypeDefinition;
  37 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition;
  38 import org.opendaylight.yangtools.yang.model.api.type.BitsTypeDefinition.Bit;
  39 import org.opendaylight.yangtools.yang.model.api.type.BooleanTypeDefinition;
  40 import org.opendaylight.yangtools.yang.model.api.type.DecimalTypeDefinition;
  41 import org.opendaylight.yangtools.yang.model.api.type.EmptyTypeDefinition;
  42 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition;
  43 import org.opendaylight.yangtools.yang.model.api.type.EnumTypeDefinition.EnumPair;
  44 import org.opendaylight.yangtools.yang.model.api.type.IdentityrefTypeDefinition;
  45 import org.opendaylight.yangtools.yang.model.api.type.InstanceIdentifierTypeDefinition;
  46 import org.opendaylight.yangtools.yang.model.api.type.Int16TypeDefinition;
  47 import org.opendaylight.yangtools.yang.model.api.type.Int32TypeDefinition;
  48 import org.opendaylight.yangtools.yang.model.api.type.Int64TypeDefinition;
  49 import org.opendaylight.yangtools.yang.model.api.type.Int8TypeDefinition;
  50 import org.opendaylight.yangtools.yang.model.api.type.LeafrefTypeDefinition;
  51 import org.opendaylight.yangtools.yang.model.api.type.RangeRestrictedTypeDefinition;
  52 import org.opendaylight.yangtools.yang.model.api.type.StringTypeDefinition;
  53 import org.opendaylight.yangtools.yang.model.api.type.TypeDefinitions;
  54 import org.opendaylight.yangtools.yang.model.api.type.Uint16TypeDefinition;
  55 import org.opendaylight.yangtools.yang.model.api.type.Uint32TypeDefinition;
  56 import org.opendaylight.yangtools.yang.model.api.type.Uint64TypeDefinition;
  57 import org.opendaylight.yangtools.yang.model.api.type.Uint8TypeDefinition;
  58 import org.opendaylight.yangtools.yang.model.api.type.UnionTypeDefinition;
  59 import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatementDecorators;
  60 import org.opendaylight.yangtools.yang.model.ri.stmt.DeclaredStatements;
  61 import org.opendaylight.yangtools.yang.model.ri.type.BitsTypeBuilder;
  62 import org.opendaylight.yangtools.yang.model.ri.type.EnumerationTypeBuilder;
  63 import org.opendaylight.yangtools.yang.model.ri.type.InstanceIdentifierTypeBuilder;
  64 import org.opendaylight.yangtools.yang.model.ri.type.InvalidLengthConstraintException;
  65 import org.opendaylight.yangtools.yang.model.ri.type.InvalidRangeConstraintException;
  66 import org.opendaylight.yangtools.yang.model.ri.type.LengthRestrictedTypeBuilder;
  67 import org.opendaylight.yangtools.yang.model.ri.type.RangeRestrictedTypeBuilder;
  68 import org.opendaylight.yangtools.yang.model.ri.type.RequireInstanceRestrictedTypeBuilder;
  69 import org.opendaylight.yangtools.yang.model.ri.type.RestrictedTypes;
  70 import org.opendaylight.yangtools.yang.model.ri.type.StringTypeBuilder;
  71 import org.opendaylight.yangtools.yang.parser.api.YangParserConfiguration;
  72 import org.opendaylight.yangtools.yang.parser.spi.TypeNamespace;
  73 import org.opendaylight.yangtools.yang.parser.spi.meta.BoundStmtCtx;
  74 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx;
  75 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
  76 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.UndeclaredCurrent;
  77 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
  78 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
  79 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
  80 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
  81 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
  82 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
  83 import org.opendaylight.yangtools.yang.parser.spi.meta.NamespaceStmtCtx;
  84 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
  85 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  86 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  87 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  88 import org.opendaylight.yangtools.yang.parser.spi.meta.UndeclaredStatementFactory;
  89 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  90
  91 abstract class AbstractTypeStatementSupport extends AbstractTypeSupport<TypeStatement>
  92         implements UndeclaredStatementFactory<QName, TypeStatement, TypeEffectiveStatement<TypeStatement>> {
  93     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR =
  94         SubstatementValidator.builder(YangStmtMapping.TYPE)
  95             .addOptional(YangStmtMapping.BASE)
  96             .addAny(YangStmtMapping.BIT)
  97             .addAny(YangStmtMapping.ENUM)
  98             .addOptional(YangStmtMapping.FRACTION_DIGITS)
  99             .addOptional(YangStmtMapping.LENGTH)
 100             .addOptional(YangStmtMapping.PATH)
 101             .addAny(YangStmtMapping.PATTERN)
 102             .addOptional(YangStmtMapping.RANGE)
 103             .addOptional(YangStmtMapping.REQUIRE_INSTANCE)
 104             .addAny(YangStmtMapping.TYPE)
 105             .build();
 106
 107     private static final ImmutableMap<QName, BuiltinEffectiveStatement> STATIC_BUILT_IN_TYPES =
 108         ImmutableMap.<QName, BuiltinEffectiveStatement>builder()
 109             .put(TypeDefinitions.BINARY, BuiltinEffectiveStatement.BINARY)
 110             .put(TypeDefinitions.BOOLEAN, BuiltinEffectiveStatement.BOOLEAN)
 111             .put(TypeDefinitions.EMPTY, BuiltinEffectiveStatement.EMPTY)
 112             // FIXME: this overlaps with DYNAMIC_BUILT_IN_TYPES. One of these is not needed, but we need to decide
 113             //        what to do. I think we should gradually use per-statement validators, hence go towards dynamic?
 114             .put(TypeDefinitions.INSTANCE_IDENTIFIER, BuiltinEffectiveStatement.INSTANCE_IDENTIFIER)
 115             .put(TypeDefinitions.INT8, BuiltinEffectiveStatement.INT8)
 116             .put(TypeDefinitions.INT16, BuiltinEffectiveStatement.INT16)
 117             .put(TypeDefinitions.INT32, BuiltinEffectiveStatement.INT32)
 118             .put(TypeDefinitions.INT64, BuiltinEffectiveStatement.INT64)
 119             .put(TypeDefinitions.STRING, BuiltinEffectiveStatement.STRING)
 120             .put(TypeDefinitions.UINT8, BuiltinEffectiveStatement.UINT8)
 121             .put(TypeDefinitions.UINT16, BuiltinEffectiveStatement.UINT16)
 122             .put(TypeDefinitions.UINT32, BuiltinEffectiveStatement.UINT32)
 123             .put(TypeDefinitions.UINT64, BuiltinEffectiveStatement.UINT64)
 124             .build();
 125
 126     private final ImmutableMap<String, StatementSupport<?, ?, ?>> dynamicBuiltInTypes;
 127
 128     AbstractTypeStatementSupport(final YangParserConfiguration config) {
 129         super(config, SUBSTATEMENT_VALIDATOR);
 130         dynamicBuiltInTypes = ImmutableMap.<String, StatementSupport<?, ?, ?>>builder()
 131             .put(TypeDefinitions.BITS.getLocalName(), new BitsSpecificationSupport(config))
 132             .put(TypeDefinitions.DECIMAL64.getLocalName(), new Decimal64SpecificationSupport(config))
 133             .put(TypeDefinitions.ENUMERATION.getLocalName(), new EnumSpecificationSupport(config))
 134             .put(TypeDefinitions.IDENTITYREF.getLocalName(), IdentityRefSpecificationSupport.rfc6020Instance(config))
 135             .put(TypeDefinitions.INSTANCE_IDENTIFIER.getLocalName(), new InstanceIdentifierSpecificationSupport(config))
 136             .put(TypeDefinitions.LEAFREF.getLocalName(), LeafrefSpecificationSupport.rfc6020Instance(config))
 137             .put(TypeDefinitions.UNION.getLocalName(), new UnionSpecificationSupport(config))
 138             .build();
 139     }
 140
 141     @Override
 142     public final void onFullDefinitionDeclared(
 143             final Mutable<QName, TypeStatement, EffectiveStatement<QName, TypeStatement>> stmt) {
 144         super.onFullDefinitionDeclared(stmt);
 145
 146         final QName typeQName = stmt.getArgument();
 147         final BuiltinEffectiveStatement builtin = STATIC_BUILT_IN_TYPES.get(typeQName);
 148         if (builtin != null) {
 149             stmt.addToNs(BaseTypeNamespace.class, Empty.value(), builtin);
 150             return;
 151         }
 152
 153         final ModelActionBuilder typeAction = stmt.newInferenceAction(ModelProcessingPhase.EFFECTIVE_MODEL);
 154         final Prerequisite<StmtContext<?, ?, ?>> typePrereq = typeAction.requiresCtx(stmt, TypeNamespace.class,
 155                 typeQName, ModelProcessingPhase.EFFECTIVE_MODEL);
 156         typeAction.mutatesEffectiveCtx(stmt.getParentContext());
 157
 158         /*
 159          * If the type does not exist, throw an InferenceException.
 160          * If the type exists, store a reference to it in BaseTypeNamespace.
 161          */
 162         typeAction.apply(new InferenceAction() {
 163             @Override
 164             public void apply(final InferenceContext ctx) {
 165                 // Note: do not attempt to call buildEffective() here
 166                 stmt.addToNs(BaseTypeNamespace.class, Empty.value(), typePrereq.resolve(ctx));
 167             }
 168
 169             @Override
 170             public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
 171                 InferenceException.throwIf(failed.contains(typePrereq), stmt, "Type [%s] was not found.", typeQName);
 172             }
 173         });
 174     }
 175
 176     @Override
 177     public boolean hasArgumentSpecificSupports() {
 178         return !dynamicBuiltInTypes.isEmpty();
 179     }
 180
 181     @Override
 182     public StatementSupport<?, ?, ?> getSupportSpecificForArgument(final String argument) {
 183         return dynamicBuiltInTypes.get(argument);
 184     }
 185
 186     @Override
 187     public final TypeEffectiveStatement<TypeStatement> createUndeclaredEffective(
 188             final UndeclaredCurrent<QName, TypeStatement> stmt,
 189             final Stream<? extends StmtContext<?, ?, ?>> effectiveSubstatements) {
 190         final ImmutableList<? extends EffectiveStatement<?, ?>> substatements = buildEffectiveSubstatements(stmt,
 191             statementsToBuild(stmt, effectiveSubstatements
 192                 .filter(StmtContext::isSupportedToBuildEffective)
 193                 .collect(Collectors.toUnmodifiableList())));
 194
 195         // First look up the proper base type
 196         final TypeEffectiveStatement<TypeStatement> typeStmt = resolveType(stmt);
 197         if (substatements.isEmpty()) {
 198             return typeStmt;
 199         }
 200
 201         // TODO: mirror the logic below
 202         throw new UnsupportedOperationException("Non-empty undeclared type statements are not implemented yet");
 203     }
 204
 205     @Override
 206     protected final TypeStatement createDeclared(final BoundStmtCtx<QName> ctx,
 207             final ImmutableList<DeclaredStatement<?>> substatements) {
 208         if (substatements.isEmpty()) {
 209             final TypeStatement builtin = BuiltinTypeStatement.lookup(ctx.getRawArgument());
 210             if (builtin != null) {
 211                 return builtin;
 212             }
 213         }
 214         return DeclaredStatements.createType(ctx.getRawArgument(), ctx.getArgument(), substatements);
 215     }
 216
 217     @Override
 218     protected final TypeStatement attachDeclarationReference(final TypeStatement stmt,
 219             final DeclarationReference reference) {
 220         return DeclaredStatementDecorators.decorateType(stmt, reference);
 221     }
 222
 223     @Override
 224     protected EffectiveStatement<QName, TypeStatement> createEffective(final Current<QName, TypeStatement> stmt,
 225             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 226         // First look up the proper base type
 227         final TypeEffectiveStatement<TypeStatement> typeStmt = resolveType(stmt);
 228         if (substatements.isEmpty()) {
 229             return typeStmt;
 230         }
 231
 232         // Now instantiate the proper effective statement for that type
 233         final TypeDefinition<?> baseType = typeStmt.getTypeDefinition();
 234         final TypeStatement declared = stmt.declared();
 235         if (baseType instanceof BinaryTypeDefinition) {
 236             return createBinary(stmt, (BinaryTypeDefinition) baseType, declared, substatements);
 237         } else if (baseType instanceof BitsTypeDefinition) {
 238             return createBits(stmt, (BitsTypeDefinition) baseType, declared, substatements);
 239         } else if (baseType instanceof BooleanTypeDefinition) {
 240             return createBoolean(stmt, (BooleanTypeDefinition) baseType, declared, substatements);
 241         } else if (baseType instanceof DecimalTypeDefinition) {
 242             return createDecimal(stmt, (DecimalTypeDefinition) baseType, declared, substatements);
 243         } else if (baseType instanceof EmptyTypeDefinition) {
 244             return createEmpty(stmt, (EmptyTypeDefinition) baseType, declared, substatements);
 245         } else if (baseType instanceof EnumTypeDefinition) {
 246             return createEnum(stmt, (EnumTypeDefinition) baseType, declared, substatements);
 247         } else if (baseType instanceof IdentityrefTypeDefinition) {
 248             return createIdentityref(stmt, (IdentityrefTypeDefinition) baseType, declared, substatements);
 249         } else if (baseType instanceof InstanceIdentifierTypeDefinition) {
 250             return createInstanceIdentifier(stmt, (InstanceIdentifierTypeDefinition) baseType, declared, substatements);
 251         } else if (baseType instanceof Int8TypeDefinition) {
 252             return createIntegral(stmt, declared, substatements,
 253                 RestrictedTypes.newInt8Builder((Int8TypeDefinition) baseType, typeEffectiveQName(stmt)));
 254         } else if (baseType instanceof Int16TypeDefinition) {
 255             return createIntegral(stmt, declared, substatements,
 256                 RestrictedTypes.newInt16Builder((Int16TypeDefinition) baseType, typeEffectiveQName(stmt)));
 257         } else if (baseType instanceof Int32TypeDefinition) {
 258             return createIntegral(stmt, declared, substatements,
 259                 RestrictedTypes.newInt32Builder((Int32TypeDefinition) baseType, typeEffectiveQName(stmt)));
 260         } else if (baseType instanceof Int64TypeDefinition) {
 261             return createIntegral(stmt, declared, substatements,
 262                 RestrictedTypes.newInt64Builder((Int64TypeDefinition) baseType, typeEffectiveQName(stmt)));
 263         } else if (baseType instanceof LeafrefTypeDefinition) {
 264             return createLeafref(stmt, (LeafrefTypeDefinition) baseType, declared, substatements);
 265         } else if (baseType instanceof StringTypeDefinition) {
 266             return createString(stmt, (StringTypeDefinition) baseType, declared, substatements);
 267         } else if (baseType instanceof Uint8TypeDefinition) {
 268             return createIntegral(stmt, declared, substatements,
 269                 RestrictedTypes.newUint8Builder((Uint8TypeDefinition) baseType, typeEffectiveQName(stmt)));
 270         } else if (baseType instanceof Uint16TypeDefinition) {
 271             return createIntegral(stmt, declared, substatements,
 272                 RestrictedTypes.newUint16Builder((Uint16TypeDefinition) baseType, typeEffectiveQName(stmt)));
 273         } else if (baseType instanceof Uint32TypeDefinition) {
 274             return createIntegral(stmt, declared, substatements,
 275                 RestrictedTypes.newUint32Builder((Uint32TypeDefinition) baseType, typeEffectiveQName(stmt)));
 276         } else if (baseType instanceof Uint64TypeDefinition) {
 277             return createIntegral(stmt, declared, substatements,
 278                 RestrictedTypes.newUint64Builder((Uint64TypeDefinition) baseType, typeEffectiveQName(stmt)));
 279         } else if (baseType instanceof UnionTypeDefinition) {
 280             return createUnion(stmt, (UnionTypeDefinition) baseType, declared, substatements);
 281         } else {
 282             throw new IllegalStateException("Unhandled base type " + baseType);
 283         }
 284     }
 285
 286     // FIXME: YANGTOOLS-1208: this needs to happen during onFullDefinitionDeclared() and stored (again) in a namespace
 287     static final @NonNull QName typeEffectiveQName(final Current<QName, ?> stmt) {
 288         return stmt.getArgument().bindTo(stmt.getEffectiveParent().effectiveNamespace()).intern();
 289     }
 290
 291     /**
 292      * Resolve type reference, as pointed to by the context's argument.
 293      *
 294      * @param ctx Statement context
 295      * @return Resolved type
 296      * @throws SourceException if the target type cannot be found
 297      */
 298     private static @NonNull TypeEffectiveStatement<TypeStatement> resolveType(final NamespaceStmtCtx ctx) {
 299         final Object obj = verifyNotNull(ctx.namespaceItem(BaseTypeNamespace.class, Empty.value()));
 300         if (obj instanceof BuiltinEffectiveStatement) {
 301             return (BuiltinEffectiveStatement) obj;
 302         } else if (obj instanceof StmtContext) {
 303             return ((TypedefEffectiveStatement) ((StmtContext<?, ?, ?>) obj).buildEffective())
 304                 .asTypeEffectiveStatement();
 305         } else {
 306             throw new InferenceException(ctx, "Unexpected base object %s", obj);
 307         }
 308     }
 309
 310     private static @NonNull TypeEffectiveStatement<TypeStatement> createBinary(final Current<QName, ?> ctx,
 311             final BinaryTypeDefinition baseType, final TypeStatement declared,
 312             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 313         final LengthRestrictedTypeBuilder<BinaryTypeDefinition> builder =
 314                 RestrictedTypes.newBinaryBuilder(baseType, typeEffectiveQName(ctx));
 315
 316         for (EffectiveStatement<?, ?> stmt : substatements) {
 317             if (stmt instanceof LengthEffectiveStatement) {
 318                 final LengthEffectiveStatement length = (LengthEffectiveStatement)stmt;
 319
 320                 try {
 321                     builder.setLengthConstraint(length, length.argument());
 322                 } catch (IllegalStateException e) {
 323                     throw new SourceException(ctx, e, "Multiple length constraints encountered");
 324                 } catch (InvalidLengthConstraintException e) {
 325                     throw new SourceException(ctx, e, "Invalid length constraint %s", length.argument());
 326                 }
 327             }
 328         }
 329
 330         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 331     }
 332
 333     private @NonNull TypeEffectiveStatement<TypeStatement> createBits(final Current<?, ?> ctx,
 334             final BitsTypeDefinition baseType, final TypeStatement declared,
 335             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 336         final BitsTypeBuilder builder = RestrictedTypes.newBitsBuilder(baseType, ctx.argumentAsTypeQName());
 337
 338         for (final EffectiveStatement<?, ?> stmt : substatements) {
 339             if (stmt instanceof BitEffectiveStatement) {
 340                 builder.addBit(addRestrictedBit(ctx, baseType, (BitEffectiveStatement) stmt));
 341             }
 342         }
 343
 344         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 345     }
 346
 347     abstract @NonNull Bit addRestrictedBit(@NonNull EffectiveStmtCtx stmt, @NonNull BitsTypeDefinition base,
 348         @NonNull BitEffectiveStatement bit);
 349
 350     private static @NonNull TypeEffectiveStatement<TypeStatement> createBoolean(final Current<QName, ?> ctx,
 351             final BooleanTypeDefinition baseType, final TypeStatement declared,
 352             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 353         return new TypeEffectiveStatementImpl<>(declared, substatements, RestrictedTypes.newBooleanBuilder(baseType,
 354             typeEffectiveQName(ctx)));
 355     }
 356
 357     private static @NonNull TypeEffectiveStatement<TypeStatement> createDecimal(final Current<QName, ?> ctx,
 358             final DecimalTypeDefinition baseType, final TypeStatement declared,
 359             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 360         final RangeRestrictedTypeBuilder<DecimalTypeDefinition, Decimal64> builder =
 361                 RestrictedTypes.newDecima64Builder(baseType, typeEffectiveQName(ctx));
 362
 363         for (EffectiveStatement<?, ?> stmt : substatements) {
 364             if (stmt instanceof RangeEffectiveStatement) {
 365                 final RangeEffectiveStatement range = (RangeEffectiveStatement) stmt;
 366                 builder.setRangeConstraint(range, range.argument());
 367             }
 368             if (stmt instanceof FractionDigitsEffectiveStatement) {
 369                 final Integer digits = ((FractionDigitsEffectiveStatement)stmt).argument();
 370                 SourceException.throwIf(baseType.getFractionDigits() != digits, ctx,
 371                     "Cannot override fraction-digits from base type %s to %s", baseType, digits);
 372             }
 373         }
 374
 375         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 376     }
 377
 378     private static @NonNull TypeEffectiveStatement<TypeStatement> createEmpty(final Current<QName, ?> ctx,
 379             final EmptyTypeDefinition baseType, final TypeStatement declared,
 380             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 381         return new TypeEffectiveStatementImpl<>(declared, substatements, RestrictedTypes.newEmptyBuilder(baseType,
 382             typeEffectiveQName(ctx)));
 383     }
 384
 385     private @NonNull TypeEffectiveStatement<TypeStatement> createEnum(final Current<?, ?> ctx,
 386             final EnumTypeDefinition baseType, final TypeStatement declared,
 387             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 388         final EnumerationTypeBuilder builder = RestrictedTypes.newEnumerationBuilder(baseType,
 389             ctx.argumentAsTypeQName());
 390
 391         for (final EffectiveStatement<?, ?> stmt : substatements) {
 392             if (stmt instanceof EnumEffectiveStatement) {
 393                 builder.addEnum(addRestrictedEnum(ctx, baseType, (EnumEffectiveStatement) stmt));
 394             }
 395         }
 396
 397         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 398     }
 399
 400     abstract @NonNull EnumPair addRestrictedEnum(@NonNull EffectiveStmtCtx stmt, @NonNull EnumTypeDefinition base,
 401         @NonNull EnumEffectiveStatement enumStmt);
 402
 403     private static @NonNull TypeEffectiveStatement<TypeStatement> createIdentityref(final Current<QName, ?> ctx,
 404             final IdentityrefTypeDefinition baseType, final TypeStatement declared,
 405             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 406         return new TypeEffectiveStatementImpl<>(declared, substatements, RestrictedTypes.newIdentityrefBuilder(baseType,
 407             typeEffectiveQName(ctx)));
 408     }
 409
 410     private static @NonNull TypeEffectiveStatement<TypeStatement> createInstanceIdentifier(final Current<QName, ?> ctx,
 411             final InstanceIdentifierTypeDefinition baseType, final TypeStatement declared,
 412             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 413         final InstanceIdentifierTypeBuilder builder = RestrictedTypes.newInstanceIdentifierBuilder(baseType,
 414                     typeEffectiveQName(ctx));
 415
 416         for (EffectiveStatement<?, ?> stmt : substatements) {
 417             if (stmt instanceof RequireInstanceEffectiveStatement) {
 418                 builder.setRequireInstance(((RequireInstanceEffectiveStatement)stmt).argument());
 419             }
 420         }
 421
 422         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 423     }
 424
 425     private static <T extends RangeRestrictedTypeDefinition<T, N>, N extends Number & Comparable<N>>
 426         @NonNull TypeEffectiveStatement<TypeStatement> createIntegral(final Current<?, ?> ctx,
 427                 final TypeStatement declared, final ImmutableList<? extends EffectiveStatement<?, ?>> substatements,
 428                 final RangeRestrictedTypeBuilder<T, N> builder) {
 429         for (EffectiveStatement<?, ?> stmt : substatements) {
 430             if (stmt instanceof RangeEffectiveStatement) {
 431                 final RangeEffectiveStatement rangeStmt = (RangeEffectiveStatement)stmt;
 432                 builder.setRangeConstraint(rangeStmt, rangeStmt.argument());
 433             }
 434         }
 435
 436         try {
 437             return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 438         } catch (InvalidRangeConstraintException e) {
 439             throw new SourceException(ctx, e, "Invalid range constraint: %s", e.getOffendingRanges());
 440         }
 441     }
 442
 443     private static @NonNull TypeEffectiveStatement<TypeStatement> createLeafref(final Current<QName, ?> ctx,
 444             final LeafrefTypeDefinition baseType, final TypeStatement declared,
 445             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 446         final RequireInstanceRestrictedTypeBuilder<LeafrefTypeDefinition> builder =
 447                 RestrictedTypes.newLeafrefBuilder(baseType, AbstractTypeStatementSupport.typeEffectiveQName(ctx));
 448
 449         for (final EffectiveStatement<?, ?> stmt : substatements) {
 450             if (stmt instanceof RequireInstanceEffectiveStatement) {
 451                 builder.setRequireInstance(((RequireInstanceEffectiveStatement) stmt).argument());
 452             }
 453         }
 454         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 455     }
 456
 457     private static @NonNull TypeEffectiveStatement<TypeStatement> createString(final Current<QName, ?> ctx,
 458             final StringTypeDefinition baseType, final TypeStatement declared,
 459             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 460         final StringTypeBuilder builder = RestrictedTypes.newStringBuilder(baseType,
 461             AbstractTypeStatementSupport.typeEffectiveQName(ctx));
 462
 463         for (EffectiveStatement<?, ?> stmt : substatements) {
 464             if (stmt instanceof LengthEffectiveStatement) {
 465                 final LengthEffectiveStatement length = (LengthEffectiveStatement)stmt;
 466
 467                 try {
 468                     builder.setLengthConstraint(length, length.argument());
 469                 } catch (IllegalStateException e) {
 470                     throw new SourceException(ctx, e, "Multiple length constraints encountered");
 471                 } catch (InvalidLengthConstraintException e) {
 472                     throw new SourceException(ctx, e, "Invalid length constraint %s", length.argument());
 473                 }
 474             }
 475             if (stmt instanceof PatternEffectiveStatement) {
 476                 builder.addPatternConstraint((PatternEffectiveStatement) stmt);
 477             }
 478         }
 479
 480         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 481     }
 482
 483     private static @NonNull TypeEffectiveStatement<TypeStatement> createUnion(final Current<QName, ?> ctx,
 484             final UnionTypeDefinition baseType, final TypeStatement declared,
 485             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 486         return new TypeEffectiveStatementImpl<>(declared, substatements, RestrictedTypes.newUnionBuilder(baseType,
 487             typeEffectiveQName(ctx)));
 488     }
 489 }