org.apache.xalan.xsltc.compiler
Class VariableBase

java.lang.Object
  org.apache.xalan.xsltc.compiler.SyntaxTreeNode
      org.apache.xalan.xsltc.compiler.TopLevelElement
          org.apache.xalan.xsltc.compiler.VariableBase

All Implemented Interfaces:

Constants

Direct Known Subclasses:

Param, Variable

 class VariableBase
extends TopLevelElement

Field Summary

protected java.util.Vector	_dependencies
protected java.lang.String	_escapedName
protected boolean	_ignore
protected boolean	_isLocal
protected Instruction	_loadInstruction
protected LocalVariableGen	_local
protected QName	_name
protected java.util.Vector	_refs
protected Expression	_select
protected Instruction	_storeInstruction
protected Type	_type
protected java.lang.String	select

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

VariableBase()

Method Summary

void	addReference(VariableRefBase vref) Add a reference to this variable.
void	disable() Disable this variable/parameter
void	display(int indent) Display variable in a full AST dump
java.lang.String	getEscapedName() Returns the escaped qname of the variable or parameter
Expression	getExpression() Returns the expression from this variable's select attribute (if any)
QName	getName() Returns the name of the variable or parameter as it will occur in the compiled translet.
Type	getType() Returns the type of the variable
boolean	isLocal() Returns the true if the variable is local
Instruction	loadInstruction() Returns an instruction for loading the value of this variable onto the JVM stack.
void	mapRegister(MethodGenerator methodGen) Map this variable to a register
void	parseContents(Parser parser) Parse the contents of the element.
void	setName(QName name) Set the name of the variable or paremeter.
Instruction	storeInstruction() Returns an instruction for storing a value from the JVM stack into this variable.
java.lang.String	toString() Display variable as single string
void	translateValue(ClassGenerator classGen, MethodGenerator methodGen) Compile the value of the variable, which is either in an expression in a 'select' attribute, or in the variable elements body
void	unmapRegister(MethodGenerator methodGen) Remove the mapping of this variable to a register.

Methods inherited from class org.apache.xalan.xsltc.compiler.TopLevelElement

addDependency, compile, getDependencies, translate, typeCheck

Methods inherited from class org.apache.xalan.xsltc.compiler.SyntaxTreeNode

addAttribute, addElement, addPrefixMapping, compileResultTree, contextDependent, dependentContents, displayContents, elementAt, elementCount, elements, getAttribute, getAttribute, getAttributes, getContents, getImportPrecedence, getLineNumber, getNodeIDForStylesheetNSLookup, getParent, getParser, getPrefixMapping, getQName, getStylesheet, getSymbolTable, getTemplate, getXSLTC, hasAttribute, hasContents, indent, isDummy, lastChild, lookupNamespace, lookupPrefix, parseChildren, removeElement, reportError, reportWarning, setAttributes, setFirstElement, setLineNumber, setParent, setParser, 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

_name

protected QName _name

_escapedName

protected java.lang.String _escapedName

_type

protected Type _type

_isLocal

protected boolean _isLocal

_local

protected LocalVariableGen _local

_loadInstruction

protected Instruction _loadInstruction

_storeInstruction

protected Instruction _storeInstruction

_select

protected Expression _select

select

protected java.lang.String select

_refs

protected java.util.Vector _refs

_dependencies

protected java.util.Vector _dependencies

_ignore

protected boolean _ignore

Constructor Detail

VariableBase

VariableBase()

Method Detail

disable

public void disable()

Disable this variable/parameter

addReference

public void addReference(VariableRefBase vref)

Add a reference to this variable. Called by VariableRef when an expression contains a reference to this variable.

mapRegister

public void mapRegister(MethodGenerator methodGen)

Map this variable to a register

unmapRegister

public void unmapRegister(MethodGenerator methodGen)

Remove the mapping of this variable to a register. Called when we leave the AST scope of the variable's declaration

loadInstruction

public Instruction loadInstruction()

Returns an instruction for loading the value of this variable onto the JVM stack.

storeInstruction

public Instruction storeInstruction()

Returns an instruction for storing a value from the JVM stack into this variable.

getExpression

public Expression getExpression()

Returns the expression from this variable's select attribute (if any)

toString

public java.lang.String toString()

Display variable as single string

Overrides:

toString in class java.lang.Object

display

public void display(int indent)

Display variable in a full AST dump

Overrides:

display in class TopLevelElement

Parameters:

indent - Indentation level for syntax tree levels.

getType

public Type getType()

Returns the type of the variable

getName

public QName getName()

Returns the name of the variable or parameter as it will occur in the compiled translet.

getEscapedName

public java.lang.String getEscapedName()

Returns the escaped qname of the variable or parameter

setName

public void setName(QName name)

Set the name of the variable or paremeter. Escape all special chars.

isLocal

public boolean isLocal()

Returns the true if the variable is local

parseContents

public void parseContents(Parser parser)

Parse the contents of the element.

Overrides:

parseContents in class SyntaxTreeNode

Parameters:

parser - reference to the XSLT parser

translateValue

public void translateValue(ClassGenerator classGen,
                           MethodGenerator methodGen)

Compile the value of the variable, which is either in an expression in a 'select' attribute, or in the variable elements body