Package gnu.bytecode
Class ObjectType
java.lang.Object
gnu.bytecode.Type
gnu.bytecode.ObjectType
- All Implemented Interfaces:
Type
- Direct Known Subclasses:
ArrayType
,ClassType
,InlineCalls.ProcedureInCallContext
,InlineCalls.ValueNeededType
,LazyType
,MappedArrayType
,NodeType
,ParameterizedType
,SingletonType
,SpecialObjectType
,TypeVariable
,UninitializedType
Semi-abstract class object reference types.
Extended by ClassType and ArrayType.
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Nested Class Summary
Nested classes/interfaces inherited from class gnu.bytecode.Type
Type.NeverReturns
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Field Summary
FieldsFields 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 -
Method Summary
Modifier and TypeMethodDescriptioncoerceFromObject
(Object obj) Convert an object to a value of this Type.int
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.void
emitCoerceFromObject
(CodeAttr code) Compile (in given method) cast from Object to this Type.static Class
getContextClass
(String cname) Get named class using context class loader.static ClassLoader
Returns class name if a class type, signature if an array type.int
getMethods
(Filter filter, int searchSupers, List<Method> result) final int
getMethods
(Filter filter, int searchSupers, Vector result, String context) Deprecated.Get the java.lang.Class object for the representation type.final boolean
boolean
isInstance
(Object obj) final void
setExisting
(boolean existing) Methods inherited from class gnu.bytecode.Type
coerceToObject, emitCoerceToObject, emitConvertFromPrimitive, emitIsInstance, getGenericSignature, getImplementationType, getMaybeGenericSignature, getName, getRawType, getRealType, getSignature, getSize, getSizeInWords, getType, hashCode, isCompatibleWithValue, isCompatibleWithValue, 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, toString
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, notify, notifyAll, wait, wait, wait
Methods inherited from interface java.lang.reflect.Type
getTypeName
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Field Details
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flags
public int flags
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Constructor Details
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ObjectType
protected ObjectType() -
ObjectType
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Method Details
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isExisting
public final boolean isExisting()- Overrides:
isExisting
in classType
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setExisting
public final void setExisting(boolean existing) -
getInternalName
Returns class name if a class type, signature if an array type. In both cases, uses '/' rather than '.' after packages prefixes. Seems rather arbitrary - but that is how classes are represented in the constant pool (CONSTANT_Class constants). Also, Class.forName is the same, except using '.'. -
getContextClass
Get named class using context class loader. If the security policy prohibits that, fall back to this class's loader.- Throws:
ClassNotFoundException
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getContextClassLoader
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getReflectClass
Get the java.lang.Class object for the representation type.- Overrides:
getReflectClass
in classType
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isInstance
- Overrides:
isInstance
in classType
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getSuperclass
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getInterfaces
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getField
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getMethod
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getMethods
@Deprecated public final int getMethods(Filter filter, int searchSupers, Vector result, String context) Deprecated. -
getMethods
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compare
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. -
coerceFromObject
Description copied from class:Type
Convert an object to a value of this Type. The result is actually of the implementation type, boxed as appropriate, so it is suitable for standard reflective operations, like the arguments to Field#set or Method#invoke. Throw a ClassCastException when this is not possible.- Specified by:
coerceFromObject
in classType
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emitCoerceFromObject
Compile (in given method) cast from Object to this Type.- Overrides:
emitCoerceFromObject
in classType
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