org.apache.xalan.xsltc.compiler
Class AncestorPattern

java.lang.Object
  extended by org.apache.xalan.xsltc.compiler.SyntaxTreeNode
      extended by org.apache.xalan.xsltc.compiler.Expression
          extended by org.apache.xalan.xsltc.compiler.Pattern
              extended by org.apache.xalan.xsltc.compiler.LocationPathPattern
                  extended by org.apache.xalan.xsltc.compiler.RelativePathPattern
                      extended by org.apache.xalan.xsltc.compiler.AncestorPattern
All Implemented Interfaces:
Constants

final class AncestorPattern
extends RelativePathPattern


Field Summary
private  Pattern _left
           
private  InstructionHandle _loop
           
private  RelativePathPattern _right
           
 
Fields inherited from class org.apache.xalan.xsltc.compiler.Expression
_falseList, _trueList, _type
 
Fields inherited from class org.apache.xalan.xsltc.compiler.SyntaxTreeNode
_attributes, _parent, _qname, Dummy, IndentIncrement, UNKNOWN_STYLESHEET_NODE_ID
 
Fields inherited from interface org.apache.xalan.xsltc.compiler.Constants
ABSOLUTE_ITERATOR, ACC_FINAL, ACC_PRIVATE, ACC_PROTECTED, ACC_PUBLIC, ACC_STATIC, ACC_SUPER, ADD_ATTRIBUTE, ADD_ATTRIBUTE_SIG, ADD_ITERATOR, ADD_ITERATOR_SIG, ADD_PARAMETER, ADD_PARAMETER_SIG, APPLY_TEMPLATES, ATTR_SET_SIG, ATTRIBUTE_LIST_FIELD, ATTRIBUTE_LIST_IMPL_CLASS, ATTRIBUTE_LIST_IMPL_SIG, ATTRIBUTES_SIG, BASIS_LIBRARY_CLASS, BOOLEAN_CLASS, BOOLEAN_VALUE, BOOLEAN_VALUE_SIG, CACHED_NODE_LIST_ITERATOR_CLASS, CHARACTERS, CHARACTERS_SIG, CHARACTERSW, CHARACTERSW_SIG, CLEAR_ATTRIBUTES, CLEAR_ATTRIBUTES_SIG, COLLATOR_CLASS, COLLATOR_SIG, COMPILER_PACKAGE, CURRENT_NODE_LIST_FILTER, CURRENT_NODE_LIST_FILTER_SIG, CURRENT_NODE_LIST_ITERATOR, CURRENT_NODE_LIST_ITERATOR_SIG, DEFAULT_NODE_COUNTER, DEFAULT_NODE_COUNTER_SIG, DOCUMENT_PNAME, DOM_ADAPTER_CLASS, DOM_ADAPTER_SIG, DOM_FIELD, DOM_IMPL, DOM_IMPL_CLASS, DOM_IMPL_SIG, DOM_INTF, DOM_INTF_SIG, DOM_PNAME, DOUBLE_CLASS, DOUBLE_SIG, DOUBLE_VALUE, DOUBLE_VALUE_SIG, DUP_FILTERED_ITERATOR, EMPTYATTR_FIELD, EMPTYSTRING, ERROR, EXPAND_STYLESHEET_QNAME_REF, EXPAND_STYLESHEET_QNAME_SIG, FALLBACK_CLASS, FATAL, FILTER_INTERFACE, FILTER_INTERFACE_SIG, FILTER_ITERATOR, FILTER_STEP_ITERATOR, FORMAT_SYMBOLS_FIELD, GET_ATTRIBUTE_VALUE, GET_ATTRIBUTE_VALUE_SIG, GET_CHILDREN, GET_CHILDREN_SIG, GET_ELEMENT_VALUE, GET_ELEMENT_VALUE_SIG, GET_ITERATOR_SIG, GET_NODE_NAME, GET_NODE_NAME_SIG, GET_NODE_TYPE, GET_NODE_TYPE_SIG, GET_NODE_VALUE, GET_NODE_VALUE_ITERATOR, GET_NODE_VALUE_ITERATOR_SIG, GET_NODE_VALUE_SIG, GET_PARAMETER, GET_PARAMETER_SIG, GET_PARENT, GET_PARENT_SIG, GET_TYPED_CHILDREN, GET_TYPED_CHILDREN_SIG, GET_UNPARSED_ENTITY_URI, GET_UNPARSED_ENTITY_URI_SIG, HAS_ATTRIBUTE, HAS_ATTRIBUTE_SIG, HASIDCALL_INDEX, HASIDCALL_INDEX_SIG, INT_VALUE, INT_VALUE_SIG, INTEGER_CLASS, INTEGER_SIG, INTERNAL, INVOKE_METHOD, ITERATOR_FIELD_SIG, ITERATOR_PNAME, KEY_INDEX_CLASS, KEY_INDEX_ITERATOR_SIG, KEY_INDEX_SIG, LAST_INDEX, LOAD_DOCUMENT_CLASS, LOCALE_CLASS, LOCALE_SIG, LOOKUP_STYLESHEET_QNAME_NS_REF, LOOKUP_STYLESHEET_QNAME_NS_SIG, MAKE_NODE, MAKE_NODE_LIST, MAKE_NODE_LIST_SIG, MAKE_NODE_LIST_SIG2, MAKE_NODE_SIG, MAKE_NODE_SIG2, MATCHING_ITERATOR, MATH_CLASS, MULTI_DOM_CLASS, MULTI_DOM_SIG, NAMES_INDEX, NAMES_INDEX_SIG, NAMESPACE_FEATURE, NAMESPACE_INDEX, NAMESPACE_INDEX_SIG, NEXT, NEXT_SIG, NEXTID, NODE, NODE_COUNTER, NODE_COUNTER_SIG, NODE_FIELD, NODE_FIELD_SIG, NODE_ITERATOR, NODE_ITERATOR_BASE, NODE_ITERATOR_SIG, NODE_PNAME, NODE_SIG, NODE_SORT_FACTORY, NODE_SORT_FACTORY_SIG, NODE_SORT_RECORD, NODE_SORT_RECORD_SIG, NS_ANCESTORS_INDEX_SIG, NTH_ITERATOR_CLASS, OBJECT_CLASS, OBJECT_SIG, ORDER_ITERATOR, ORDER_ITERATOR_SIG, OUTPUT_BASE, OUTPUT_HANDLER, OUTPUT_HANDLER_SIG, POP_PARAM_FRAME, POP_PARAM_FRAME_SIG, POSITION_INDEX, PREFIX_URIS_ARRAY_SIG, PREFIX_URIS_IDX_SIG, PUSH_PARAM_FRAME, PUSH_PARAM_FRAME_SIG, REDIRECT_URI, RESET, RESET_SIG, RTF_INITIAL_SIZE, RUNTIME_NODE_CLASS, RUNTIME_PACKAGE, SAX_IMPL, SAX_IMPL_CLASS, SAX_IMPL_SIG, SET_START_NODE, SET_START_NODE_SIG, SINGLETON_ITERATOR, SORT_ITERATOR, SORT_ITERATOR_SIG, STATIC_CHAR_DATA_FIELD, STATIC_CHAR_DATA_FIELD_SIG, STATIC_NAMES_ARRAY_FIELD, STATIC_NAMESPACE_ARRAY_FIELD, STATIC_NS_ANCESTORS_ARRAY_FIELD, STATIC_PREFIX_URIS_ARRAY_FIELD, STATIC_PREFIX_URIS_IDX_ARRAY_FIELD, STATIC_TYPES_ARRAY_FIELD, STATIC_URIS_ARRAY_FIELD, STEP_ITERATOR_CLASS, STREAM_XML_OUTPUT, STRING, STRING_BUFFER_CLASS, STRING_BUFFER_SIG, STRING_CLASS, STRING_SIG, STRING_TO_INT, STRING_TO_INT_SIG, STRING_TO_REAL, STRING_TO_REAL_SIG, STRING_VALUE_HANDLER, STRING_VALUE_HANDLER_SIG, STRING_WRITER, STRIP_SPACE, STRIP_SPACE_INTF, STRIP_SPACE_PARAMS, STRIP_SPACE_SIG, TRANSLET_CLASS, TRANSLET_FIELD, TRANSLET_FIELD_SIG, TRANSLET_INTF, TRANSLET_INTF_SIG, TRANSLET_OUTPUT_BASE, TRANSLET_OUTPUT_INTERFACE, TRANSLET_OUTPUT_PNAME, TRANSLET_OUTPUT_SIG, TRANSLET_PNAME, TRANSLET_SIG, TRANSLET_URI, TRANSLET_VERSION_INDEX, TRANSLET_VERSION_INDEX_SIG, TYPES_INDEX, TYPES_INDEX_SIG, UNION_ITERATOR_CLASS, UNION_ITERATOR_SIG, UNSUPPORTED, URIS_INDEX, URIS_INDEX_SIG, WARNING, WRITER_SIG, XHTML_URI, XMLNS_PREFIX, XMLNS_STRING, XMLNS_URI, XSLT_PACKAGE, XSLT_URI
 
Constructor Summary
AncestorPattern(Pattern left, RelativePathPattern right)
           
AncestorPattern(RelativePathPattern right)
           
 
Method Summary
 StepPattern getKernelPattern()
           
 InstructionHandle getLoopHandle()
           
 boolean isWildcard()
           
 void reduceKernelPattern()
           
 void setParser(Parser parser)
          Set this node's parser.
 java.lang.String toString()
           
 void translate(ClassGenerator classGen, MethodGenerator methodGen)
          Translate this node into JVM bytecodes.
 Type typeCheck(SymbolTable stable)
          Returns the type of a pattern, which is always a NodeType.
 
Methods inherited from class org.apache.xalan.xsltc.compiler.LocationPathPattern
getAxis, getDefaultPriority, getPriority, getTemplate, noSmallerThan, setTemplate
 
Methods inherited from class org.apache.xalan.xsltc.compiler.Expression
backPatchFalseList, backPatchTrueList, compile, desynthesize, evaluateAtCompileTime, getFalseList, getTrueList, getType, hasLastCall, hasPositionCall, lookupPrimop, startIterator, synthesize, translateDesynthesized
 
Methods inherited from class org.apache.xalan.xsltc.compiler.SyntaxTreeNode
addAttribute, addElement, addPrefixMapping, compileResultTree, contextDependent, dependentContents, display, displayContents, elementAt, elementCount, elements, getAttribute, getAttribute, getAttributes, getContents, getImportPrecedence, getLineNumber, getNodeIDForStylesheetNSLookup, getParent, getParser, getPrefixMapping, getQName, getStylesheet, getSymbolTable, getXSLTC, hasAttribute, hasContents, indent, isDummy, lastChild, lookupNamespace, lookupPrefix, parseChildren, parseContents, removeElement, reportError, reportWarning, setAttributes, setFirstElement, setLineNumber, setParent, setPrefixMapping, setQName, setQName, translateContents, typeCheckContents, updateScope
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Field Detail

_left

private final Pattern _left

_right

private final RelativePathPattern _right

_loop

private InstructionHandle _loop
Constructor Detail

AncestorPattern

public AncestorPattern(RelativePathPattern right)

AncestorPattern

public AncestorPattern(Pattern left,
                       RelativePathPattern right)
Method Detail

getLoopHandle

public InstructionHandle getLoopHandle()

setParser

public void setParser(Parser parser)
Description copied from class: SyntaxTreeNode
Set this node's parser. The parser (the XSLT parser) gives this syntax tree node access to the symbol table and XPath parser.

Overrides:
setParser in class SyntaxTreeNode
Parameters:
parser - The XSLT parser.

isWildcard

public boolean isWildcard()
Specified by:
isWildcard in class LocationPathPattern

getKernelPattern

public StepPattern getKernelPattern()
Specified by:
getKernelPattern in class LocationPathPattern

reduceKernelPattern

public void reduceKernelPattern()
Specified by:
reduceKernelPattern in class LocationPathPattern

typeCheck

public Type typeCheck(SymbolTable stable)
               throws TypeCheckError
Description copied from class: Pattern
Returns the type of a pattern, which is always a NodeType. A NodeType has a number of subtypes defined by NodeType._type corresponding to each type of node.

Overrides:
typeCheck in class LocationPathPattern
Parameters:
stable - The compiler/parser's symbol table
Throws:
TypeCheckError

translate

public void translate(ClassGenerator classGen,
                      MethodGenerator methodGen)
Description copied from class: Pattern
Translate this node into JVM bytecodes. Patterns are translated as boolean expressions with true/false lists. Before calling translate on a pattern, make sure that the node being matched is on top of the stack. After calling translate, make sure to backpatch both true and false lists. True lists are the default, in the sense that they always "fall through". If this is not the intended semantics (e.g., see AlternativePattern.translate(org.apache.xalan.xsltc.compiler.util.ClassGenerator, org.apache.xalan.xsltc.compiler.util.MethodGenerator)) then a GOTO must be appended to the instruction list after calling translate.

Overrides:
translate in class LocationPathPattern
Parameters:
classGen - BCEL Java class generator
methodGen - BCEL Java method generator

toString

public java.lang.String toString()
Overrides:
toString in class LocationPathPattern