Package gnu.kawa.reflect
Class LazyType
- java.lang.Object
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- gnu.bytecode.Type
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- gnu.bytecode.ObjectType
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- gnu.kawa.reflect.LazyType
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- All Implemented Interfaces:
Type
public class LazyType extends ObjectType
The type of lazy values - i.e. ones that eventually produce values. This includes futures and promises.
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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
Fields Modifier and Type Field Description static ClassType
lazyType
static ClassType
promiseType
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Fields inherited from class gnu.bytecode.ObjectType
flags
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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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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.Type
getImplementationType()
Return Java-level implementation type.static LazyType
getInstance(ClassType rawType, Type valueType)
static LazyType
getLazyType(Type valueType)
static LazyType
getPromiseType(Type valueType)
Type
getRawType()
Return JVM-level implementation type.Type
getValueType()
static boolean
maybeLazy(Type type)
String
toString()
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Methods inherited from class gnu.bytecode.ObjectType
coerceFromObject, emitCoerceFromObject, getContextClass, getContextClassLoader, getField, getInterfaces, getInternalName, getMethod, getMethods, getMethods, getReflectClass, getSuperclass, isExisting, isInstance, setExisting
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Methods inherited from class gnu.bytecode.Type
coerceToObject, emitCoerceToObject, emitConvertFromPrimitive, emitIsInstance, getGenericSignature, getMaybeGenericSignature, getName, 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
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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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Method Detail
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getValueType
public Type getValueType()
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getRawType
public Type getRawType()
Description copied from class:Type
Return JVM-level implementation type.- Overrides:
getRawType
in classType
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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.- Overrides:
getImplementationType
in classType
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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 classObjectType
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maybeLazy
public static boolean maybeLazy(Type type)
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