gnu.kawa.reflect

Class MultValuesType

java.lang.Object

gnu.bytecode.Type

gnu.kawa.reflect.OccurrenceType

gnu.kawa.reflect.MultValuesType

All Implemented Interfaces:

TypeValue, java.io.Externalizable, java.io.Serializable, java.lang.reflect.Type

public class MultValuesType
extends OccurrenceType

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class gnu.bytecode.Type

Type.NeverReturns

Field Summary

Fields inherited from class gnu.kawa.reflect.OccurrenceType

emptySequenceType, typeOccurrenceType

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

Constructor Summary

Constructors

Constructor and Description
MultValuesType(Type[] itemTypes)

Method Summary

Modifier and Type	Method and 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(java.io.ObjectInput in)
java.lang.String	toString()
void	writeExternal(java.io.ObjectOutput out)

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

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

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface gnu.expr.TypeValue

encodeType

Methods inherited from interface java.lang.reflect.Type

getTypeName

Constructor Detail

MultValuesType

public MultValuesType(Type[] itemTypes)

Method Detail

getValueCount

public int getValueCount()

getValueType

public Type getValueType(int index)

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 interface TypeValue

Overrides:

getImplementationType in class OccurrenceType

create

public static Type create(Type[] itemTypes)

toString

public java.lang.String toString()

Overrides:

toString in class OccurrenceType

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 class Type

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.

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 class OccurrenceType

writeExternal

public void writeExternal(java.io.ObjectOutput out)
                   throws java.io.IOException

Specified by:

writeExternal in interface java.io.Externalizable

Overrides:

writeExternal in class OccurrenceType

Throws:

java.io.IOException

readExternal

public void readExternal(java.io.ObjectInput in)
                  throws java.io.IOException,
                         java.lang.ClassNotFoundException

Specified by:

readExternal in interface java.io.Externalizable

Overrides:

readExternal in class OccurrenceType

Throws:

java.io.IOException

java.lang.ClassNotFoundException