Class SyntaxTreeNode

  • All Implemented Interfaces:
    org.apache.bcel.generic.InstructionConstants, Constants
    Direct Known Subclasses:
    Pattern, Stylesheet, Template

    public abstract class SyntaxTreeNode
    extends java.lang.Object
    implements Constants
    Author:
    Jacek Ambroziak, Santiago Pericas-Geertsen, G. Todd Miller, Morten Jorensen, Erwin Bolwidt , John Howard
    • Field Detail

      • UNKNOWN_STYLESHEET_NODE_ID

        public static final int UNKNOWN_STYLESHEET_NODE_ID
        See Also:
        Constant Field Values
    • Constructor Detail

      • SyntaxTreeNode

        public SyntaxTreeNode()
        Creates a new SyntaxTreeNode with a 'null' QName and no source file line number reference.
      • SyntaxTreeNode

        public SyntaxTreeNode​(int line)
        Creates a new SyntaxTreeNode with a 'null' QName.
        Parameters:
        line - Source file line number reference
      • SyntaxTreeNode

        public SyntaxTreeNode​(java.lang.String uri,
                              java.lang.String prefix,
                              java.lang.String local)
        Creates a new SyntaxTreeNode with no source file line number reference.
        Parameters:
        uri - The element's namespace URI
        prefix - The element's namespace prefix
        local - The element's local name
    • Method Detail

      • getLineNumber

        public final int getLineNumber()
        Get the source file line number for this element. If unavailable, lookup in ancestors.
        Returns:
        The source file line number.
      • getParser

        public final Parser getParser()
        Returns this node's XSLT parser.
        Returns:
        The XSLT parser.
      • getStylesheet

        public Stylesheet getStylesheet()
        Get the Stylesheet node that represents the element that this node occured under.
        Returns:
        The Stylesheet ancestor node of this node.
      • parseContents

        public void parseContents​(Parser parser)
        Parse the contents of this syntax tree nodes (child nodes, XPath expressions, patterns and functions). The default behaviour is to parser the syntax tree node's children (since there are no common expressions, patterns, etc. that can be handled in this base class.
        Parameters:
        parser - reference to the XSLT parser
      • typeCheck

        public abstract Type typeCheck​(org.apache.xalan.xsltc.compiler.SymbolTable stable)
                                throws TypeCheckError
        Type check the children of this node. The type check phase may add coercions (CastExpr) to the AST.
        Parameters:
        stable - The compiler/parser's symbol table
        Throws:
        TypeCheckError
      • translate

        public abstract void translate​(ClassGenerator classGen,
                                       MethodGenerator methodGen)
        Translate this abstract syntax tree node into JVM bytecodes.
        Parameters:
        classGen - BCEL Java class generator
        methodGen - BCEL Java method generator
      • display

        public void display​(int indent)
        Displays the contents of this syntax tree node (to stdout). This method is intended for debugging _only_, and should be overridden by all syntax tree node implementations.
        Parameters:
        indent - Indentation level for syntax tree levels.