gnu.kawa.lispexpr

Class SeqSizeType

java.lang.Object

gnu.bytecode.Type

gnu.bytecode.ObjectType

gnu.bytecode.SpecialObjectType

gnu.kawa.lispexpr.LangObjType

gnu.kawa.lispexpr.SeqSizeType

All Implemented Interfaces:

TypeValue, java.lang.reflect.Type

public class SeqSizeType
extends LangObjType

This matches a sequences of a specific length. This is used for [pat1 ... panN] patterns.

Nested Class Summary

Nested classes/interfaces inherited from class gnu.kawa.lispexpr.LangObjType

LangObjType.ArgListBuilder, LangObjType.SimpleVectorBuilder

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

Type.NeverReturns

Field Summary

Fields inherited from class gnu.kawa.lispexpr.LangObjType

argListType, argVectorType, bitvectorType, c16vectorType, constVectorType, dflonumType, dynamicType, f32vectorType, f64vectorType, filepathType, gvectorType, integerType, istringType, jstringType, listType, numericType, pathType, procedureType, promiseType, rationalType, realType, regexType, s16vectorType, s32vectorType, s64vectorType, s8vectorType, sequenceType, stringType, typeClass, typeClassType, typeLangObjType, typeType, u16vectorType, u32vectorType, u64vectorType, u8vectorType, URIType, vectorType

Fields inherited from class gnu.bytecode.SpecialObjectType

implementationType

Fields inherited from class gnu.bytecode.ObjectType

flags

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
SeqSizeType(int requiredSize, boolean requiredExact)
SeqSizeType(java.lang.String name, int requiredSize, boolean requiredExact, java.lang.String implClass)

Method Summary

Modifier and Type	Method and Description
static void	checkSizeEq(java.util.List list, int requiredSize)
static void	checkSizeGe(java.util.List list, int requiredSize)
static java.util.List	coerceEq(java.lang.Object object, int requiredSize)
static java.util.List	coerceEqOrNull(java.lang.Object object, int requiredSize)
java.lang.Object	coerceFromObject(java.lang.Object obj) Convert an object to a value of this Type.
static java.util.List	coerceGe(java.lang.Object object, int requiredSize)
static java.util.List	coerceGeOrNull(java.lang.Object object, int requiredSize)
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.
void	emitCoerceFromObject(CodeAttr code) Compile (in given method) cast from Object to this Type.
boolean	emitCoercionOrNull(CodeAttr code)
int	isCompatibleWithValue(Type valueType) If this is the target type, is a given source type compatible?
boolean	isInterface()

Methods inherited from class gnu.kawa.lispexpr.LangObjType

coerceDFloNum, coerceIntNum, coerceNumeric, coerceRatNum, coerceRealNum, coerceToClass, coerceToClassOrNull, coerceToClassType, coerceToClassTypeOrNull, coerceToConstVector, coerceToProcedure, coerceToProcedureOrNull, coerceToType, coerceToTypeOrNull, coerceToU8Vector, coercionOrNullMethod, convertValue, elementGetterMethodName, elementSetterMethodName, emitConvertFromPrimitive, emitIsInstance, emitTestIf, encodeType, getBuildObject, getConstructor, getConstructorType, getElementType, getInstanceFromClass

Methods inherited from class gnu.bytecode.SpecialObjectType

getDeclaredMethod, getField, getImplementationType, getInterfaces, getMethod, getMethods, getRealType, getReflectClass, getSuperclass

Methods inherited from class gnu.bytecode.ObjectType

getContextClass, getContextClassLoader, getInternalName, getMethods, isExisting, isInstance, setExisting

Methods inherited from class gnu.bytecode.Type

coerceToObject, emitCoerceToObject, emitIsInstance, getGenericSignature, getMaybeGenericSignature, getName, getRawType, getSignature, getSize, getSizeInWords, getType, hashCode, isCompatibleWithValue, 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 gnu.expr.TypeValue

getImplementationType

Methods inherited from interface java.lang.reflect.Type

getTypeName

Constructor Detail

SeqSizeType

public SeqSizeType(java.lang.String name,
                   int requiredSize,
                   boolean requiredExact,
                   java.lang.String implClass)

SeqSizeType

public SeqSizeType(int requiredSize,
                   boolean requiredExact)

Method Detail

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.

Overrides:

coerceFromObject in class LangObjType

checkSizeEq

public static void checkSizeEq(java.util.List list,
                               int requiredSize)

checkSizeGe

public static void checkSizeGe(java.util.List list,
                               int requiredSize)

coerceEq

public static java.util.List coerceEq(java.lang.Object object,
                                      int requiredSize)

coerceGe

public static java.util.List coerceGe(java.lang.Object object,
                                      int requiredSize)

coerceEqOrNull

public static java.util.List coerceEqOrNull(java.lang.Object object,
                                            int requiredSize)

coerceGeOrNull

public static java.util.List coerceGeOrNull(java.lang.Object object,
                                            int requiredSize)

emitCoerceFromObject

public void emitCoerceFromObject(CodeAttr code)

Description copied from class: ObjectType

Compile (in given method) cast from Object to this Type.

Overrides:

emitCoerceFromObject in class LangObjType

emitCoercionOrNull

public boolean emitCoercionOrNull(CodeAttr code)

Overrides:

emitCoercionOrNull in class LangObjType

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 LangObjType

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.

isInterface

public boolean isInterface()

Overrides:

isInterface in class 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.

Overrides:

compare in class LangObjType