Package gnu.kawa.reflect
Class MultValuesType
- java.lang.Object
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- gnu.bytecode.Type
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- gnu.kawa.reflect.OccurrenceType
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- gnu.kawa.reflect.MultValuesType
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- All Implemented Interfaces:
TypeValue
,Externalizable
,Serializable
,Type
public class MultValuesType extends OccurrenceType
- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class gnu.bytecode.Type
Type.NeverReturns
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Field Summary
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Fields inherited from class gnu.kawa.reflect.OccurrenceType
emptySequenceType, typeOccurrenceType
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Fields inherited from class gnu.bytecode.Type
boolean_ctype, boolean_type, booleanType, booleanValue_method, byte_type, byteType, char_type, charType, clone_method, double_type, doubleType, doubleValue_method, errorType, float_type, floatType, floatValue_method, int_type, intType, intValue_method, java_lang_Class_type, javalangannotationAnnotationType, javalangBooleanType, javalangCharacterType, javalangClassType, javalanginvokeMethodHandleType, javalangNumberType, javalangObjectType, javalangStringType, javalangThrowableType, long_type, longType, longValue_method, neverReturnsType, nullType, number_type, objectType, pointer_type, reflectClass, short_type, shortType, string_type, throwable_type, toString_method, tostring_type, toStringType, typeArray0, void_type, voidType
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Constructor Summary
Constructors Constructor Description MultValuesType(Type[] itemTypes)
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Method Summary
All Methods Static Methods Instance Methods Concrete Methods Modifier and Type Method Description int
compare(Type other)
Return a numeric code showing "subtype" relationship: 1: if other is a pure subtype of this; 0: if has the same values; -1: if this is a pure subtype of other; -2: if they have values in common but neither is a subtype of the other; -3: if the types have no values in common.static Type
create(Type[] itemTypes)
Type
getImplementationType()
Return Java-level implementation type.int
getValueCount()
Type
getValueType(int index)
int
isCompatibleWithValue(Type valueType)
If this is the target type, is a given source type compatible?void
readExternal(ObjectInput in)
String
toString()
void
writeExternal(ObjectOutput out)
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Methods inherited from class gnu.kawa.reflect.OccurrenceType
coerceFromObject, compatibleWithCount, convertValue, emitIsInstance, emitTestIf, getBase, getConstructor, getInstance, isInstance, itemCountCode, itemCountIsOne, itemCountIsZeroOrOne, itemCountMax, itemCountMin, itemCountRange, itemPrimeType, maxOccurs, minOccurs, setBase
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Methods inherited from class gnu.bytecode.Type
coerceToObject, emitCoerceFromObject, emitCoerceToObject, emitConvertFromPrimitive, emitIsInstance, getGenericSignature, getMaybeGenericSignature, getName, getRawType, getRealType, getReflectClass, getSignature, getSize, getSizeInWords, getType, hashCode, isCompatibleWithValue, isExisting, isInterface, isMoreSpecific, isSame, isSubtype, isValidJavaTypeName, isVoid, lookupType, lowestCommonSharedType, lowestCommonSuperType, make, make, printSignature, promote, promoteIfUnsigned, registerTypeForClass, setGenericSignature, setName, setReflectClass, setSignature, signatureLength, signatureLength, signatureToName, signatureToPrimitive, signatureToType, signatureToType, swappedCompareResult
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Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, notify, notifyAll, wait, wait, wait
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Methods inherited from interface java.lang.reflect.Type
getTypeName
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Methods inherited from interface gnu.expr.TypeValue
encodeType
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Constructor Detail
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MultValuesType
public MultValuesType(Type[] itemTypes)
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Method Detail
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getValueCount
public int getValueCount()
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getValueType
public Type getValueType(int index)
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getImplementationType
public Type getImplementationType()
Description copied from class:Type
Return Java-level implementation type. The type used to implement types not natively understood by the JVM or the Java language. Usually, the identity function. However, a language might handle union types or template types or type expressions calculated at run time. In that case return the type used at the Java level, and known at compile time.- Specified by:
getImplementationType
in interfaceTypeValue
- Overrides:
getImplementationType
in classOccurrenceType
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toString
public String toString()
- Overrides:
toString
in classOccurrenceType
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isCompatibleWithValue
public int isCompatibleWithValue(Type valueType)
Description copied from class:Type
If this is the target type, is a given source type compatible?- Overrides:
isCompatibleWithValue
in classType
- Returns:
- -1 if not compatible; 0 if need to check at run-time; 1 if compatible; 2 if compatible and no conversion or cast needed. We also return 0 for some "narrowing" conversions even if we know they will always succeed, so as to make such conversions less preferred when doing method overloading.
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compare
public int compare(Type other)
Description copied from class:Type
Return a numeric code showing "subtype" relationship: 1: if other is a pure subtype of this; 0: if has the same values; -1: if this is a pure subtype of other; -2: if they have values in common but neither is a subtype of the other; -3: if the types have no values in common. "Same values" is rather loose; by "A is a subtype of B" we mean that all instance of A can be "widened" to B. More formally, A.compare(B) returns: 1: all B values can be converted to A without a coercion failure (i.e. a ClassCastException or overflow or major loss of information), but not vice versa. 0: all A values can be converted to B without a coercion failure and vice versa; -1: all A values can be converted to B without a coercion failure but not vice versa; -2: there are (potentially) some A values that can be converted to B, and some B values can be converted to A; -3: there are no A values that can be converted to B, and neither are there any B values that can be converted to A.- Overrides:
compare
in classOccurrenceType
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writeExternal
public void writeExternal(ObjectOutput out) throws IOException
- Specified by:
writeExternal
in interfaceExternalizable
- Overrides:
writeExternal
in classOccurrenceType
- Throws:
IOException
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readExternal
public void readExternal(ObjectInput in) throws IOException, ClassNotFoundException
- Specified by:
readExternal
in interfaceExternalizable
- Overrides:
readExternal
in classOccurrenceType
- Throws:
IOException
ClassNotFoundException
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