Package gnu.kawa.lispexpr
Class LangObjType
java.lang.Object
gnu.bytecode.Type
gnu.bytecode.ObjectType
gnu.bytecode.SpecialObjectType
gnu.kawa.lispexpr.LangObjType
- Direct Known Subclasses:
SeqSizeType
A wrapper around a class type.
A LangObjType is implemented using some class type,
but may have a custom (language-specific) coercion method,
constructor, and name.
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Nested Class Summary
Nested ClassesModifier and TypeClassDescriptionstatic class
static class
Nested classes/interfaces inherited from class gnu.bytecode.Type
Type.NeverReturns
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
Immutuable string, implemented using IStringstatic final LangObjType
Wrapper for java.lang.String, with extra coercions.static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final ClassType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
static final LangObjType
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
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Method Summary
Modifier and TypeMethodDescriptionstatic DFloNum
coerceDFloNum
(Object value) coerceFromObject
(Object obj) Convert an object to a value of this Type.static IntNum
coerceIntNum
(Object value) static Numeric
coerceNumeric
(Object value) static RatNum
coerceRatNum
(Object value) static RealNum
coerceRealNum
(Object value) static Class
coerceToClass
(Object obj) static Class
coerceToClassOrNull
(Object type) static ClassType
coerceToClassType
(Object obj) static ClassType
static FVector
static Procedure
coerceToProcedure
(Object obj) static Procedure
coerceToProcedureOrNull
(Object value) static Type
coerceToType
(Object obj) static Type
coerceToTypeOrNull
(Object type) static U8Vector
coerceToU8Vector
(Object obj) protected Method
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.convertValue
(Expression value) Return converted expression or null.void
emitCoerceFromObject
(CodeAttr code) Compile (in given method) cast from Object to this Type.boolean
emitCoercionOrNull
(CodeAttr code) void
emitConvertFromPrimitive
(Type stackType, CodeAttr code) Convert from stackType (usually PrimType) to this type.void
emitIsInstance
(Variable incoming, Compilation comp, Target target) Emit code for incoming instanceof this_type.void
emitTestIf
(Variable incoming, Declaration decl, Compilation comp) Emit code for if (incoming instanceof this_type) decl = incoming ....encodeType
(Language language) Get the constructor function for this type.static LangObjType
getInstanceFromClass
(String name) int
isCompatibleWithValue
(Type valueType) If this is the target type, is a given source type compatible?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, 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
Methods inherited from interface gnu.expr.TypeValue
getImplementationType
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Field Details
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pathType
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filepathType
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URIType
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typeClass
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typeType
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typeClassType
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numericType
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realType
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rationalType
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integerType
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dflonumType
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vectorType
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gvectorType
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constVectorType
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s8vectorType
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u8vectorType
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s16vectorType
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u16vectorType
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s32vectorType
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u32vectorType
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s64vectorType
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u64vectorType
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f32vectorType
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f64vectorType
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c16vectorType
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bitvectorType
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regexType
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stringType
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jstringType
Wrapper for java.lang.String, with extra coercions. -
istringType
Immutuable string, implemented using IString -
listType
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procedureType
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promiseType
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sequenceType
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dynamicType
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argListType
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argVectorType
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typeLangObjType
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Method Details
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getInstanceFromClass
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isCompatibleWithValue
Description copied from class:Type
If this is the target type, is a given source type compatible?- Overrides:
isCompatibleWithValue
in classType
- 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.
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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.- Overrides:
compare
in classSpecialObjectType
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emitIsInstance
Description copied from interface:TypeValue
Emit code for incoming instanceof this_type. The implementation can useInstanceOf .emitIsInstance
which is a conveniece method that callsemitTestIf
.- Specified by:
emitIsInstance
in interfaceTypeValue
- Parameters:
incoming
- Contains the value we are testing to see if it has the the type of 'this'. If null, use top-of-stack.comp
- The compilation state.target
- Where to leave the result.
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coerceNumeric
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coerceRealNum
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coerceDFloNum
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coerceRatNum
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coerceIntNum
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coerceToClassOrNull
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coerceToClass
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coerceToClassTypeOrNull
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coerceToClassType
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coerceToTypeOrNull
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coerceToType
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coerceToConstVector
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coerceToProcedureOrNull
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coerceToProcedure
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coerceToU8Vector
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coercionOrNullMethod
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emitCoercionOrNull
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emitTestIf
Description copied from interface:TypeValue
Emit code for if (incoming instanceof this_type) decl = incoming .... This method is designed for typeswitch applications, where this call is the first part of a conditional, so it must be followed by calls to emitElse and emitFi.- Specified by:
emitTestIf
in interfaceTypeValue
- Parameters:
incoming
- Contains the value we are testing to see if it has the type of this. If null, use top-of-stack. May not be null if decl is non-null.decl
- If non-null, assign value after coercion to Declaration.comp
- The compilation state.
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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.- Overrides:
coerceFromObject
in classObjectType
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emitConvertFromPrimitive
Description copied from class:Type
Convert from stackType (usually PrimType) to this type. However, we might only convert part-way, to some object type. If converting to this type might fail at run-time, only convert to Object (as by emitCoerceToObject); a caller can usestackType.emitConvertFromObject
to convert the rest, but that might throw an exception. (This is a bit of a kludge.)- Overrides:
emitConvertFromPrimitive
in classType
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convertValue
Description copied from interface:TypeValue
Return converted expression or null.- Specified by:
convertValue
in interfaceTypeValue
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emitCoerceFromObject
Description copied from class:ObjectType
Compile (in given method) cast from Object to this Type.- Overrides:
emitCoerceFromObject
in classObjectType
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getConstructorType
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getConstructor
Description copied from interface:TypeValue
Get the constructor function for this type. Returns null if there is no contructor function. Also returns null if this extends ClassType or ArrayType and standard Java constructors (<init>
methods) should be used.- Specified by:
getConstructor
in interfaceTypeValue
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encodeType
- Specified by:
encodeType
in interfaceTypeValue
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getElementType
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elementGetterMethodName
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elementSetterMethodName
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getBuildObject
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