gnu.expr

Class InlineCalls.LenientExpectedType

java.lang.Object

gnu.bytecode.Type

gnu.expr.InlineCalls.LenientExpectedType

All Implemented Interfaces:

java.lang.reflect.Type

Enclosing class:

InlineCalls

public static class InlineCalls.LenientExpectedType
extends Type

New helper Type class, used for "lenient" conversions.

Nested Class Summary

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

Type.NeverReturns

Field Summary

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

Method Summary

Modifier and Type	Method and Description
java.lang.Object	coerceFromObject(java.lang.Object obj) Convert an object to a value of this Type.
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.
int	isCompatibleWithValue(Type valueType) If this is the target type, is a given source type compatible?
static InlineCalls.LenientExpectedType	make(Type type)
java.lang.String	toString()

Methods inherited from class gnu.bytecode.Type

coerceToObject, emitCoerceFromObject, emitCoerceToObject, emitConvertFromPrimitive, emitIsInstance, getGenericSignature, getImplementationType, getMaybeGenericSignature, getName, getRawType, getRealType, getReflectClass, getSignature, getSize, getSizeInWords, getType, hashCode, isCompatibleWithValue, isExisting, isInstance, 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 java.lang.reflect.Type

getTypeName

Method Detail

make

public static InlineCalls.LenientExpectedType make(Type type)

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.

Specified by:

compare in class Type

coerceFromObject

public java.lang.Object coerceFromObject(java.lang.Object obj)

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 class Type

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.

toString

public java.lang.String toString()

Overrides:

toString in class Type