yang/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 com.google.common.collect.ImmutableSet;
  15 import com.google.common.collect.Iterables;
  16 import com.google.common.collect.Maps;
  17 import java.math.BigDecimal;
  18 import java.util.Collection;
  19 import org.eclipse.jdt.annotation.NonNull;
  20 import org.opendaylight.yangtools.yang.common.Empty;
  21 import org.opendaylight.yangtools.yang.common.QName;
  22 import org.opendaylight.yangtools.yang.model.api.TypeDefinition;
  23 import org.opendaylight.yangtools.yang.model.api.YangStmtMapping;
  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.Uint16TypeDefinition;
  54 import org.opendaylight.yangtools.yang.model.api.type.Uint32TypeDefinition;
  55 import org.opendaylight.yangtools.yang.model.api.type.Uint64TypeDefinition;
  56 import org.opendaylight.yangtools.yang.model.api.type.Uint8TypeDefinition;
  57 import org.opendaylight.yangtools.yang.model.api.type.UnionTypeDefinition;
  58 import org.opendaylight.yangtools.yang.model.util.type.BitsTypeBuilder;
  59 import org.opendaylight.yangtools.yang.model.util.type.EnumerationTypeBuilder;
  60 import org.opendaylight.yangtools.yang.model.util.type.InstanceIdentifierTypeBuilder;
  61 import org.opendaylight.yangtools.yang.model.util.type.InvalidLengthConstraintException;
  62 import org.opendaylight.yangtools.yang.model.util.type.InvalidRangeConstraintException;
  63 import org.opendaylight.yangtools.yang.model.util.type.LengthRestrictedTypeBuilder;
  64 import org.opendaylight.yangtools.yang.model.util.type.RangeRestrictedTypeBuilder;
  65 import org.opendaylight.yangtools.yang.model.util.type.RequireInstanceRestrictedTypeBuilder;
  66 import org.opendaylight.yangtools.yang.model.util.type.RestrictedTypes;
  67 import org.opendaylight.yangtools.yang.model.util.type.StringTypeBuilder;
  68 import org.opendaylight.yangtools.yang.parser.spi.TypeNamespace;
  69 import org.opendaylight.yangtools.yang.parser.spi.meta.AbstractStringStatementSupport;
  70 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx;
  71 import org.opendaylight.yangtools.yang.parser.spi.meta.EffectiveStmtCtx.Current;
  72 import org.opendaylight.yangtools.yang.parser.spi.meta.InferenceException;
  73 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder;
  74 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceAction;
  75 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.InferenceContext;
  76 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelActionBuilder.Prerequisite;
  77 import org.opendaylight.yangtools.yang.parser.spi.meta.ModelProcessingPhase;
  78 import org.opendaylight.yangtools.yang.parser.spi.meta.StatementSupport;
  79 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext;
  80 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContext.Mutable;
  81 import org.opendaylight.yangtools.yang.parser.spi.meta.StmtContextUtils;
  82 import org.opendaylight.yangtools.yang.parser.spi.meta.SubstatementValidator;
  83 import org.opendaylight.yangtools.yang.parser.spi.source.SourceException;
  84
  85 abstract class AbstractTypeStatementSupport
  86         extends AbstractStringStatementSupport<TypeStatement, EffectiveStatement<String, TypeStatement>> {
  87     private static final SubstatementValidator SUBSTATEMENT_VALIDATOR = SubstatementValidator.builder(
  88         YangStmtMapping.TYPE)
  89         .addOptional(YangStmtMapping.BASE)
  90         .addAny(YangStmtMapping.BIT)
  91         .addAny(YangStmtMapping.ENUM)
  92         .addOptional(YangStmtMapping.FRACTION_DIGITS)
  93         .addOptional(YangStmtMapping.LENGTH)
  94         .addOptional(YangStmtMapping.PATH)
  95         .addAny(YangStmtMapping.PATTERN)
  96         .addOptional(YangStmtMapping.RANGE)
  97         .addOptional(YangStmtMapping.REQUIRE_INSTANCE)
  98         .addAny(YangStmtMapping.TYPE)
  99         .build();
 100
 101     static final String BINARY = "binary";
 102     static final String BITS = "bits";
 103     static final String BOOLEAN = "boolean";
 104     static final String DECIMAL64 = "decimal64";
 105     static final String EMPTY = "empty";
 106     static final String ENUMERATION = "enumeration";
 107     static final String IDENTITY_REF = "identityref";
 108     static final String INSTANCE_IDENTIFIER = "instance-identifier";
 109     static final String INT8 = "int8";
 110     static final String INT16 = "int16";
 111     static final String INT32 = "int32";
 112     static final String INT64 = "int64";
 113     static final String LEAF_REF = "leafref";
 114     static final String STRING = "string";
 115     static final String UINT8 = "uint8";
 116     static final String UINT16 = "uint16";
 117     static final String UINT32 = "uint32";
 118     static final String UINT64 = "uint64";
 119     static final String UNION = "union";
 120
 121     private static final ImmutableMap<String, BuiltinEffectiveStatement> STATIC_BUILT_IN_TYPES =
 122         ImmutableMap.<String, BuiltinEffectiveStatement>builder()
 123             .put(BINARY, BuiltinEffectiveStatement.BINARY)
 124             .put(BOOLEAN, BuiltinEffectiveStatement.BOOLEAN)
 125             .put(EMPTY, BuiltinEffectiveStatement.EMPTY)
 126             // FIXME: this overlaps with DYNAMIC_BUILT_IN_TYPES. One of these is not needed, but we need to decide
 127             //        what to do. I think we should gradually use per-statement validators, hence go towards dynamic?
 128             .put(INSTANCE_IDENTIFIER, BuiltinEffectiveStatement.INSTANCE_IDENTIFIER)
 129             .put(INT8, BuiltinEffectiveStatement.INT8)
 130             .put(INT16, BuiltinEffectiveStatement.INT16)
 131             .put(INT32, BuiltinEffectiveStatement.INT32)
 132             .put(INT64, BuiltinEffectiveStatement.INT64)
 133             .put(STRING, BuiltinEffectiveStatement.STRING)
 134             .put(UINT8, BuiltinEffectiveStatement.UINT8)
 135             .put(UINT16, BuiltinEffectiveStatement.UINT16)
 136             .put(UINT32, BuiltinEffectiveStatement.UINT32)
 137             .put(UINT64, BuiltinEffectiveStatement.UINT64)
 138             .build();
 139
 140     private static final ImmutableMap<String, StatementSupport<?, ?, ?>> DYNAMIC_BUILT_IN_TYPES =
 141             ImmutableMap.<String, StatementSupport<?, ?, ?>>builder()
 142             .put(BITS, new BitsSpecificationSupport())
 143             .put(DECIMAL64, new Decimal64SpecificationSupport())
 144             .put(ENUMERATION, new EnumSpecificationSupport())
 145             .put(IDENTITY_REF, new IdentityRefSpecificationRFC6020Support())
 146             .put(INSTANCE_IDENTIFIER, new InstanceIdentifierSpecificationSupport())
 147             .put(LEAF_REF, new LeafrefSpecificationRFC6020Support())
 148             .put(UNION, new UnionSpecificationSupport())
 149             .build();
 150
 151     private static final ImmutableMap<String, String> BUILT_IN_TYPES = Maps.uniqueIndex(ImmutableSet.copyOf(
 152         Iterables.<String>concat(STATIC_BUILT_IN_TYPES.keySet(), DYNAMIC_BUILT_IN_TYPES.keySet())), key -> key);
 153
 154     AbstractTypeStatementSupport() {
 155         super(YangStmtMapping.TYPE, StatementPolicy.exactReplica());
 156     }
 157
 158     @Override
 159     public final void onFullDefinitionDeclared(
 160             final Mutable<String, TypeStatement, EffectiveStatement<String, TypeStatement>> stmt) {
 161         super.onFullDefinitionDeclared(stmt);
 162
 163         final String argument = stmt.getArgument();
 164         final BuiltinEffectiveStatement builtin = STATIC_BUILT_IN_TYPES.get(argument);
 165         if (builtin != null) {
 166             stmt.addToNs(BaseTypeNamespace.class, Empty.getInstance(), builtin);
 167             return;
 168         }
 169
 170         final QName typeQName = StmtContextUtils.parseNodeIdentifier(stmt, argument);
 171         final ModelActionBuilder typeAction = stmt.newInferenceAction(ModelProcessingPhase.EFFECTIVE_MODEL);
 172         final Prerequisite<StmtContext<?, ?, ?>> typePrereq = typeAction.requiresCtx(stmt, TypeNamespace.class,
 173                 typeQName, ModelProcessingPhase.EFFECTIVE_MODEL);
 174         typeAction.mutatesEffectiveCtx(stmt.getParentContext());
 175
 176         /*
 177          * If the type does not exist, throw an InferenceException.
 178          * If the type exists, store a reference to it in BaseTypeNamespace.
 179          */
 180         typeAction.apply(new InferenceAction() {
 181             @Override
 182             public void apply(final InferenceContext ctx) {
 183                 // Note: do not attempt to call buildEffective() here
 184                 stmt.addToNs(BaseTypeNamespace.class, Empty.getInstance(), typePrereq.resolve(ctx));
 185             }
 186
 187             @Override
 188             public void prerequisiteFailed(final Collection<? extends Prerequisite<?>> failed) {
 189                 InferenceException.throwIf(failed.contains(typePrereq), stmt, "Type [%s] was not found.", typeQName);
 190             }
 191         });
 192     }
 193
 194     @Override
 195     public final String internArgument(final String rawArgument) {
 196         final String found;
 197         return (found = BUILT_IN_TYPES.get(rawArgument)) != null ? found : rawArgument;
 198     }
 199
 200     @Override
 201     public boolean hasArgumentSpecificSupports() {
 202         return !DYNAMIC_BUILT_IN_TYPES.isEmpty();
 203     }
 204
 205     @Override
 206     public StatementSupport<?, ?, ?> getSupportSpecificForArgument(final String argument) {
 207         return DYNAMIC_BUILT_IN_TYPES.get(argument);
 208     }
 209
 210     @Override
 211     protected final SubstatementValidator getSubstatementValidator() {
 212         return SUBSTATEMENT_VALIDATOR;
 213     }
 214
 215     @Override
 216     protected final TypeStatement createDeclared(final StmtContext<String, TypeStatement, ?> ctx,
 217             final ImmutableList<? extends DeclaredStatement<?>> substatements) {
 218         return new RegularTypeStatement(ctx.getRawArgument(), substatements);
 219     }
 220
 221     @Override
 222     protected final TypeStatement createEmptyDeclared(final StmtContext<String, TypeStatement, ?> ctx) {
 223         final TypeStatement builtin;
 224         return (builtin = BuiltinTypeStatement.lookup(ctx)) != null ? builtin
 225             : new EmptyTypeStatement(ctx.getRawArgument());
 226     }
 227
 228     @Override
 229     protected EffectiveStatement<String, TypeStatement> createEffective(final Current<String, TypeStatement> stmt,
 230             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 231         // First look up the proper base type
 232         final TypeEffectiveStatement<TypeStatement> typeStmt = resolveType(stmt);
 233         if (substatements.isEmpty()) {
 234             return typeStmt;
 235         }
 236
 237         // Now instantiate the proper effective statement for that type
 238         final TypeDefinition<?> baseType = typeStmt.getTypeDefinition();
 239         final TypeStatement declared = stmt.declared();
 240         if (baseType instanceof BinaryTypeDefinition) {
 241             return createBinary(stmt, (BinaryTypeDefinition) baseType, declared, substatements);
 242         } else if (baseType instanceof BitsTypeDefinition) {
 243             return createBits(stmt, (BitsTypeDefinition) baseType, declared, substatements);
 244         } else if (baseType instanceof BooleanTypeDefinition) {
 245             return createBoolean(stmt, (BooleanTypeDefinition) baseType, declared, substatements);
 246         } else if (baseType instanceof DecimalTypeDefinition) {
 247             return createDecimal(stmt, (DecimalTypeDefinition) baseType, declared, substatements);
 248         } else if (baseType instanceof EmptyTypeDefinition) {
 249             return createEmpty(stmt, (EmptyTypeDefinition) baseType, declared, substatements);
 250         } else if (baseType instanceof EnumTypeDefinition) {
 251             return createEnum(stmt, (EnumTypeDefinition) baseType, declared, substatements);
 252         } else if (baseType instanceof IdentityrefTypeDefinition) {
 253             return createIdentityref(stmt, (IdentityrefTypeDefinition) baseType, declared, substatements);
 254         } else if (baseType instanceof InstanceIdentifierTypeDefinition) {
 255             return createInstanceIdentifier(stmt, (InstanceIdentifierTypeDefinition) baseType, declared, substatements);
 256         } else if (baseType instanceof Int8TypeDefinition) {
 257             return createIntegral(stmt, declared, substatements,
 258                 RestrictedTypes.newInt8Builder((Int8TypeDefinition) baseType, typeEffectiveQName(stmt)));
 259         } else if (baseType instanceof Int16TypeDefinition) {
 260             return createIntegral(stmt, declared, substatements,
 261                 RestrictedTypes.newInt16Builder((Int16TypeDefinition) baseType, typeEffectiveQName(stmt)));
 262         } else if (baseType instanceof Int32TypeDefinition) {
 263             return createIntegral(stmt, declared, substatements,
 264                 RestrictedTypes.newInt32Builder((Int32TypeDefinition) baseType, typeEffectiveQName(stmt)));
 265         } else if (baseType instanceof Int64TypeDefinition) {
 266             return createIntegral(stmt, declared, substatements,
 267                 RestrictedTypes.newInt64Builder((Int64TypeDefinition) baseType, typeEffectiveQName(stmt)));
 268         } else if (baseType instanceof LeafrefTypeDefinition) {
 269             return createLeafref(stmt, (LeafrefTypeDefinition) baseType, declared, substatements);
 270         } else if (baseType instanceof StringTypeDefinition) {
 271             return createString(stmt, (StringTypeDefinition) baseType, declared, substatements);
 272         } else if (baseType instanceof Uint8TypeDefinition) {
 273             return createIntegral(stmt, declared, substatements,
 274                 RestrictedTypes.newUint8Builder((Uint8TypeDefinition) baseType, typeEffectiveQName(stmt)));
 275         } else if (baseType instanceof Uint16TypeDefinition) {
 276             return createIntegral(stmt, declared, substatements,
 277                 RestrictedTypes.newUint16Builder((Uint16TypeDefinition) baseType, typeEffectiveQName(stmt)));
 278         } else if (baseType instanceof Uint32TypeDefinition) {
 279             return createIntegral(stmt, declared, substatements,
 280                 RestrictedTypes.newUint32Builder((Uint32TypeDefinition) baseType, typeEffectiveQName(stmt)));
 281         } else if (baseType instanceof Uint64TypeDefinition) {
 282             return createIntegral(stmt, declared, substatements,
 283                 RestrictedTypes.newUint64Builder((Uint64TypeDefinition) baseType, typeEffectiveQName(stmt)));
 284         } else if (baseType instanceof UnionTypeDefinition) {
 285             return createUnion(stmt, (UnionTypeDefinition) baseType, declared, substatements);
 286         } else {
 287             throw new IllegalStateException("Unhandled base type " + baseType);
 288         }
 289     }
 290
 291     // FIXME: YANGTOOLS-1208: this needs to happen during onFullDefinitionDeclared() and stored (again) in a namespace
 292     static final @NonNull QName typeEffectiveQName(final Current<String, ?> stmt) {
 293         // FIXME: YANGTOOLS-1117: this really should be handled through A=AbstractQName, with two values coming out of
 294         //        parseArgument(): either UnqualifiedQName or QualifiedQName. Each of those can easily be bound to
 295         //        parent module:
 296         //          stmt.getArgument().bindTo(parentNamespace).
 297         final String argument = stmt.getArgument();
 298         return QName.create(stmt.getEffectiveParent().effectiveNamespace(),
 299             // Split out localName event if it is prefixed. This should really be in parseArgument()
 300             argument.substring(argument.indexOf(':') + 1)).intern();
 301     }
 302
 303     /**
 304      * Resolve type reference, as pointed to by the context's argument.
 305      *
 306      * @param ctx Statement context
 307      * @return Resolved type
 308      * @throws SourceException if the target type cannot be found
 309      */
 310     private static @NonNull TypeEffectiveStatement<TypeStatement> resolveType(final Current<String, ?> ctx) {
 311         final Object obj = verifyNotNull(ctx.namespaceItem(BaseTypeNamespace.class, Empty.getInstance()));
 312         if (obj instanceof BuiltinEffectiveStatement) {
 313             return (BuiltinEffectiveStatement) obj;
 314         } else if (obj instanceof StmtContext) {
 315             return ((TypedefEffectiveStatement) ((StmtContext<?, ?, ?>) obj).buildEffective())
 316                 .asTypeEffectiveStatement();
 317         } else {
 318             throw new InferenceException(ctx, "Unexpected base object %s", obj);
 319         }
 320     }
 321
 322     private static @NonNull TypeEffectiveStatement<TypeStatement> createBinary(final Current<String, ?> ctx,
 323             final BinaryTypeDefinition baseType, final TypeStatement declared,
 324             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 325         final LengthRestrictedTypeBuilder<BinaryTypeDefinition> builder =
 326                 RestrictedTypes.newBinaryBuilder(baseType, typeEffectiveQName(ctx));
 327
 328         for (EffectiveStatement<?, ?> stmt : substatements) {
 329             if (stmt instanceof LengthEffectiveStatement) {
 330                 final LengthEffectiveStatement length = (LengthEffectiveStatement)stmt;
 331
 332                 try {
 333                     builder.setLengthConstraint(length, length.argument());
 334                 } catch (IllegalStateException e) {
 335                     throw new SourceException(ctx, e, "Multiple length constraints encountered");
 336                 } catch (InvalidLengthConstraintException e) {
 337                     throw new SourceException(ctx, e, "Invalid length constraint %s", length.argument());
 338                 }
 339             }
 340         }
 341
 342         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 343     }
 344
 345     private @NonNull TypeEffectiveStatement<TypeStatement> createBits(final Current<?, ?> ctx,
 346             final BitsTypeDefinition baseType, final TypeStatement declared,
 347             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 348         final BitsTypeBuilder builder = RestrictedTypes.newBitsBuilder(baseType, ctx.argumentAsTypeQName());
 349
 350         for (final EffectiveStatement<?, ?> stmt : substatements) {
 351             if (stmt instanceof BitEffectiveStatement) {
 352                 builder.addBit(addRestrictedBit(ctx, baseType, (BitEffectiveStatement) stmt));
 353             }
 354         }
 355
 356         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 357     }
 358
 359     abstract @NonNull Bit addRestrictedBit(@NonNull EffectiveStmtCtx stmt, @NonNull BitsTypeDefinition base,
 360         @NonNull BitEffectiveStatement bit);
 361
 362     private static @NonNull TypeEffectiveStatement<TypeStatement> createBoolean(final Current<String, ?> ctx,
 363             final BooleanTypeDefinition baseType, final TypeStatement declared,
 364             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 365         return new TypeEffectiveStatementImpl<>(declared, substatements, RestrictedTypes.newBooleanBuilder(baseType,
 366             typeEffectiveQName(ctx)));
 367     }
 368
 369     private static @NonNull TypeEffectiveStatement<TypeStatement> createDecimal(final Current<String, ?> ctx,
 370             final DecimalTypeDefinition baseType, final TypeStatement declared,
 371             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 372         final RangeRestrictedTypeBuilder<DecimalTypeDefinition, BigDecimal> builder =
 373                 RestrictedTypes.newDecima64Builder(baseType, typeEffectiveQName(ctx));
 374
 375         for (EffectiveStatement<?, ?> stmt : substatements) {
 376             if (stmt instanceof RangeEffectiveStatement) {
 377                 final RangeEffectiveStatement range = (RangeEffectiveStatement) stmt;
 378                 builder.setRangeConstraint(range, range.argument());
 379             }
 380             if (stmt instanceof FractionDigitsEffectiveStatement) {
 381                 final Integer digits = ((FractionDigitsEffectiveStatement)stmt).argument();
 382                 SourceException.throwIf(baseType.getFractionDigits() != digits, ctx,
 383                     "Cannot override fraction-digits from base type %s to %s", baseType, digits);
 384             }
 385         }
 386
 387         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 388     }
 389
 390     private static @NonNull TypeEffectiveStatement<TypeStatement> createEmpty(final Current<String, ?> ctx,
 391             final EmptyTypeDefinition baseType, final TypeStatement declared,
 392             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 393         return new TypeEffectiveStatementImpl<>(declared, substatements, RestrictedTypes.newEmptyBuilder(baseType,
 394             typeEffectiveQName(ctx)));
 395     }
 396
 397     private @NonNull TypeEffectiveStatement<TypeStatement> createEnum(final Current<?, ?> ctx,
 398             final EnumTypeDefinition baseType, final TypeStatement declared,
 399             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 400         final EnumerationTypeBuilder builder = RestrictedTypes.newEnumerationBuilder(baseType,
 401             ctx.argumentAsTypeQName());
 402
 403         for (final EffectiveStatement<?, ?> stmt : substatements) {
 404             if (stmt instanceof EnumEffectiveStatement) {
 405                 builder.addEnum(addRestrictedEnum(ctx, baseType, (EnumEffectiveStatement) stmt));
 406             }
 407         }
 408
 409         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 410     }
 411
 412     abstract @NonNull EnumPair addRestrictedEnum(@NonNull EffectiveStmtCtx stmt, @NonNull EnumTypeDefinition base,
 413         @NonNull EnumEffectiveStatement enumStmt);
 414
 415     private static @NonNull TypeEffectiveStatement<TypeStatement> createIdentityref(final Current<String, ?> ctx,
 416             final IdentityrefTypeDefinition baseType, final TypeStatement declared,
 417             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 418         return new TypeEffectiveStatementImpl<>(declared, substatements, RestrictedTypes.newIdentityrefBuilder(baseType,
 419             typeEffectiveQName(ctx)));
 420     }
 421
 422     private static @NonNull TypeEffectiveStatement<TypeStatement> createInstanceIdentifier(final Current<String, ?> ctx,
 423             final InstanceIdentifierTypeDefinition baseType, final TypeStatement declared,
 424             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 425         final InstanceIdentifierTypeBuilder builder = RestrictedTypes.newInstanceIdentifierBuilder(baseType,
 426                     typeEffectiveQName(ctx));
 427
 428         for (EffectiveStatement<?, ?> stmt : substatements) {
 429             if (stmt instanceof RequireInstanceEffectiveStatement) {
 430                 builder.setRequireInstance(((RequireInstanceEffectiveStatement)stmt).argument());
 431             }
 432         }
 433
 434         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 435     }
 436
 437     private static <T extends RangeRestrictedTypeDefinition<T, N>, N extends Number & Comparable<N>>
 438         @NonNull TypeEffectiveStatement<TypeStatement> createIntegral(final Current<?, ?> ctx,
 439                 final TypeStatement declared, final ImmutableList<? extends EffectiveStatement<?, ?>> substatements,
 440                 final RangeRestrictedTypeBuilder<T, N> builder) {
 441         for (EffectiveStatement<?, ?> stmt : substatements) {
 442             if (stmt instanceof RangeEffectiveStatement) {
 443                 final RangeEffectiveStatement rangeStmt = (RangeEffectiveStatement)stmt;
 444                 builder.setRangeConstraint(rangeStmt, rangeStmt.argument());
 445             }
 446         }
 447
 448         try {
 449             return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 450         } catch (InvalidRangeConstraintException e) {
 451             throw new SourceException(ctx, e, "Invalid range constraint: %s", e.getOffendingRanges());
 452         }
 453     }
 454
 455     private static @NonNull TypeEffectiveStatement<TypeStatement> createLeafref(final Current<String, ?> ctx,
 456             final LeafrefTypeDefinition baseType, final TypeStatement declared,
 457             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 458         final RequireInstanceRestrictedTypeBuilder<LeafrefTypeDefinition> builder =
 459                 RestrictedTypes.newLeafrefBuilder(baseType, AbstractTypeStatementSupport.typeEffectiveQName(ctx));
 460
 461         for (final EffectiveStatement<?, ?> stmt : substatements) {
 462             if (stmt instanceof RequireInstanceEffectiveStatement) {
 463                 builder.setRequireInstance(((RequireInstanceEffectiveStatement) stmt).argument());
 464             }
 465         }
 466         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 467     }
 468
 469     private static @NonNull TypeEffectiveStatement<TypeStatement> createString(final Current<String, ?> ctx,
 470             final StringTypeDefinition baseType, final TypeStatement declared,
 471             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 472         final StringTypeBuilder builder = RestrictedTypes.newStringBuilder(baseType,
 473             AbstractTypeStatementSupport.typeEffectiveQName(ctx));
 474
 475         for (EffectiveStatement<?, ?> stmt : substatements) {
 476             if (stmt instanceof LengthEffectiveStatement) {
 477                 final LengthEffectiveStatement length = (LengthEffectiveStatement)stmt;
 478
 479                 try {
 480                     builder.setLengthConstraint(length, length.argument());
 481                 } catch (IllegalStateException e) {
 482                     throw new SourceException(ctx, e, "Multiple length constraints encountered");
 483                 } catch (InvalidLengthConstraintException e) {
 484                     throw new SourceException(ctx, e, "Invalid length constraint %s", length.argument());
 485                 }
 486             }
 487             if (stmt instanceof PatternEffectiveStatement) {
 488                 builder.addPatternConstraint((PatternEffectiveStatement) stmt);
 489             }
 490         }
 491
 492         return new TypeEffectiveStatementImpl<>(declared, substatements, builder);
 493     }
 494
 495     private static @NonNull TypeEffectiveStatement<TypeStatement> createUnion(final Current<String, ?> ctx,
 496             final UnionTypeDefinition baseType, final TypeStatement declared,
 497             final ImmutableList<? extends EffectiveStatement<?, ?>> substatements) {
 498         return new TypeEffectiveStatementImpl<>(declared, substatements, RestrictedTypes.newUnionBuilder(baseType,
 499             typeEffectiveQName(ctx)));
 500     }
 501 }