FileDocCategorySizeDatePackage
ApplyImports.javaAPI DocJava SE 5 API5656Fri Aug 26 14:55:34 BST 2005com.sun.org.apache.xalan.internal.xsltc.compiler

ApplyImports

public final class ApplyImports extends Instruction
author
Morten Jorgensen

Fields Summary
private QName
_modeName
private String
_functionName
private int
_precedence
Constructors Summary
Methods Summary
public voiddisplay(int indent)

	indent(indent);
	Util.println("ApplyTemplates");
	indent(indent + IndentIncrement);
	if (_modeName != null) {
	    indent(indent + IndentIncrement);
	    Util.println("mode " + _modeName);
	}
    
private intgetMinPrecedence(int max)
Determine the lowest import precedence for any stylesheet imported or included by the stylesheet in which this element occured. The templates that are imported by the stylesheet in which this element occured will all have higher import precedence than the integer returned by this method.

	Stylesheet stylesheet = getStylesheet();
	Stylesheet root = getParser().getTopLevelStylesheet();

	int min = max;

	Enumeration templates = root.getContents().elements();
	while (templates.hasMoreElements()) {
	    SyntaxTreeNode child = (SyntaxTreeNode)templates.nextElement();
	    if (child instanceof Template) {
		Stylesheet curr = child.getStylesheet();
		while ((curr != null) && (curr != stylesheet)) {
		    if (curr._importedFrom != null)
			curr = curr._importedFrom;
		    else if (curr._includedFrom != null)
			curr = curr._includedFrom;
		    else
			curr = null;
		}
		if (curr == stylesheet) {
		    int prec = child.getStylesheet().getImportPrecedence();
		    if (prec < min) min = prec;
		}
	    }
	}
	return (min);
    
public booleanhasWithParams()
Returns true if this element has parameters

	return hasContents();
    
public voidparseContents(com.sun.org.apache.xalan.internal.xsltc.compiler.Parser parser)
Parse the attributes and contents of an element.

	// Indicate to the top-level stylesheet that all templates must be
	// compiled into separate methods.
	Stylesheet stylesheet = getStylesheet();
	stylesheet.setTemplateInlining(false);

	// Get the mode we are currently in (might not be any)
	Template template = getTemplate();
	_modeName = template.getModeName();
	_precedence = template.getImportPrecedence();

	// Get the method name for <xsl:apply-imports/> in this mode
	stylesheet = parser.getTopLevelStylesheet();

	// Get the [min,max> precedence of all templates imported under the
	// current stylesheet
	final int maxPrecedence = _precedence;
	final int minPrecedence = getMinPrecedence(maxPrecedence);
	final Mode mode = stylesheet.getMode(_modeName);
	_functionName = mode.functionName(minPrecedence, maxPrecedence);

	parseChildren(parser);	// with-params
    
public voidtranslate(com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator classGen, com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator methodGen)
Translate call-template. A parameter frame is pushed only if some template in the stylesheet uses parameters.

	final Stylesheet stylesheet = classGen.getStylesheet();
	final ConstantPoolGen cpg = classGen.getConstantPool();
	final InstructionList il = methodGen.getInstructionList();
	final int current = methodGen.getLocalIndex("current");

	// Push the arguments that are passed to applyTemplates()
	il.append(classGen.loadTranslet());
	il.append(methodGen.loadDOM());
	// Wrap the current node inside an iterator
	int init = cpg.addMethodref(SINGLETON_ITERATOR,
				    "<init>", "("+NODE_SIG+")V");
	il.append(new NEW(cpg.addClass(SINGLETON_ITERATOR)));
	il.append(DUP);
	il.append(methodGen.loadCurrentNode());
	il.append(new INVOKESPECIAL(init));

	il.append(methodGen.loadHandler());

	// Construct the translet class-name and the signature of the method
	final String className = classGen.getStylesheet().getClassName();
	final String signature = classGen.getApplyTemplatesSig();
	final int applyTemplates = cpg.addMethodref(className,
						    _functionName,
						    signature);
	il.append(new INVOKEVIRTUAL(applyTemplates));
    
public com.sun.org.apache.xalan.internal.xsltc.compiler.util.TypetypeCheck(com.sun.org.apache.xalan.internal.xsltc.compiler.SymbolTable stable)
Type-check the attributes/contents of an element.

	typeCheckContents(stable);		// with-params
	return Type.Void;