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FilteredAbsoluteLocationPath.javaAPI DocJava SE 5 API3317Fri Aug 26 14:55:34 BST 2005com.sun.org.apache.xalan.internal.xsltc.compiler

FilteredAbsoluteLocationPath

public final class FilteredAbsoluteLocationPath extends Expression
author
G. Todd Miller

Fields Summary
private Expression
_path
Constructors Summary
public FilteredAbsoluteLocationPath()

	_path = null;
public FilteredAbsoluteLocationPath(Expression path)

	_path = path;
	if (path != null) {
	    _path.setParent(this);
	}
Methods Summary
public com.sun.org.apache.xalan.internal.xsltc.compiler.ExpressiongetPath()

	return(_path);
public voidsetParser(com.sun.org.apache.xalan.internal.xsltc.compiler.Parser parser)

	super.setParser(parser);
	if (_path != null) {
	    _path.setParser(parser);
	}
public java.lang.StringtoString()

	return "FilteredAbsoluteLocationPath(" +
	    (_path != null ? _path.toString() : "null") + ')";
public voidtranslate(com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator classGen, com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator methodGen)

	final ConstantPoolGen cpg = classGen.getConstantPool();
	final InstructionList il = methodGen.getInstructionList();
	if (_path != null) {
	    final int initDFI = cpg.addMethodref(DUP_FILTERED_ITERATOR,
						"<init>",
						"("
						+ NODE_ITERATOR_SIG
						+ ")V");
	    // Create new Dup Filter Iterator
	    il.append(new NEW(cpg.addClass(DUP_FILTERED_ITERATOR)));
	    il.append(DUP);

	    // Compile relative path iterator(s)
	    _path.translate(classGen, methodGen);

	    // Initialize Dup Filter Iterator with iterator from the stack
	    il.append(new INVOKESPECIAL(initDFI));
	}
	else {
	    final int git = cpg.addInterfaceMethodref(DOM_INTF,
						      "getIterator",
						      "()"+NODE_ITERATOR_SIG);
	    il.append(methodGen.loadDOM());
	    il.append(new INVOKEINTERFACE(git, 1));
	}
public com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypetypeCheck(com.sun.org.apache.xalan.internal.xsltc.compiler.SymbolTable stable)

	if (_path != null) {
	    final Type ptype = _path.typeCheck(stable);
	    if (ptype instanceof NodeType) {		// promote to node-set
		_path = new CastExpr(_path, Type.NodeSet);
	    }
	}
	return _type = Type.NodeSet;