Package gnu.kawa.xml
Class NodeType
java.lang.Object
gnu.bytecode.Type
gnu.bytecode.ObjectType
gnu.kawa.xml.NodeType
- All Implemented Interfaces:
TypeValue
,ItemPredicate
,NodePredicate
,Externalizable
,Serializable
,Type
- Direct Known Subclasses:
AttributeType
,ElementType
,ProcessingInstructionType
A SeqPosition used to represent a node in (usually) a TreeList.
This is special in that the represented node is the current position
of the SeqPosition - but when passed to a method it is only valid
during that method. After the method returns, the caller is free to
change the position, so if the node is saved in a data structure it
must be copied.
- See Also:
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Nested Class Summary
Nested classes/interfaces inherited from class gnu.bytecode.Type
Type.NeverReturns
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Field Summary
FieldsModifier and TypeFieldDescriptionstatic final NodeType
static final int
static final int
static final NodeType
static final int
static final NodeType
static final int
static final NodeType
static final int
static final int
static final NodeType
static final ClassType
static final ClassType
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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Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionstatic KNode
coerceForce
(Object obj, int kinds) coerceFromObject
(Object obj) Convert an object to a value of this Type.static KNode
coerceOrNull
(Object obj, int kinds) 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.protected void
emitCoerceOrNullMethod
(Variable incoming, Compilation comp) 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 ....Get the constructor function for this type.Return Java-level implementation type.static boolean
isInstance
(AbstractSequence seq, int ipos, int kinds) boolean
isInstance
(Object obj) boolean
isInstancePos
(AbstractSequence seq, int ipos) void
toString()
void
Methods inherited from class gnu.bytecode.ObjectType
getContextClass, getContextClassLoader, getField, getInterfaces, getInternalName, getMethod, getMethods, getMethods, getReflectClass, getSuperclass, isExisting, setExisting
Methods inherited from class gnu.bytecode.Type
coerceToObject, emitCoerceToObject, emitConvertFromPrimitive, emitIsInstance, getGenericSignature, 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
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
encodeType
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Field Details
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TEXT_OK
public static final int TEXT_OK- See Also:
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ELEMENT_OK
public static final int ELEMENT_OK- See Also:
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ATTRIBUTE_OK
public static final int ATTRIBUTE_OK- See Also:
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DOCUMENT_OK
public static final int DOCUMENT_OK- See Also:
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COMMENT_OK
public static final int COMMENT_OK- See Also:
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PI_OK
public static final int PI_OK- See Also:
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typeKNode
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typeNodeType
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nodeType
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documentNodeTest
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textNodeTest
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commentNodeTest
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anyNodeTest
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Constructor Details
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NodeType
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NodeType
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Method Details
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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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convertValue
Description copied from interface:TypeValue
Return converted expression or null.- Specified by:
convertValue
in interfaceTypeValue
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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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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.- Specified by:
getImplementationType
in interfaceTypeValue
- Overrides:
getImplementationType
in classType
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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 classObjectType
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isInstance
- Overrides:
isInstance
in classObjectType
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isInstancePos
- Specified by:
isInstancePos
in interfaceItemPredicate
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isInstance
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coerceForce
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coerceOrNull
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emitCoerceOrNullMethod
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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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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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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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toString
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writeExternal
- Specified by:
writeExternal
in interfaceExternalizable
- Throws:
IOException
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readExternal
- Specified by:
readExternal
in interfaceExternalizable
- Throws:
IOException
ClassNotFoundException
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