/**
* Compile a buildKeys() method into the output class. Note that keys for the input document are
* created in topLevel(), not in this method. However, we still need this method to create keys
* for documents loaded via the XPath document() function.
*/
private String compileBuildKeys(ClassGenerator classGen) {
final ConstantPoolGen cpg = classGen.getConstantPool();
final com.sun.org.apache.bcel.internal.generic.Type[] argTypes = {
Util.getJCRefType(DOM_INTF_SIG),
Util.getJCRefType(NODE_ITERATOR_SIG),
Util.getJCRefType(TRANSLET_OUTPUT_SIG),
com.sun.org.apache.bcel.internal.generic.Type.INT
};
final String[] argNames = {DOCUMENT_PNAME, ITERATOR_PNAME, TRANSLET_OUTPUT_PNAME, "current"};
final InstructionList il = new InstructionList();
final MethodGenerator buildKeys =
new MethodGenerator(
ACC_PUBLIC,
com.sun.org.apache.bcel.internal.generic.Type.VOID,
argTypes,
argNames,
"buildKeys",
_className,
il,
classGen.getConstantPool());
buildKeys.addException("com.sun.org.apache.xalan.internal.xsltc.TransletException");
final Enumeration elements = elements();
while (elements.hasMoreElements()) {
// xsl:key
final Object element = elements.nextElement();
if (element instanceof Key) {
final Key key = (Key) element;
key.translate(classGen, buildKeys);
_keys.put(key.getName(), key);
}
}
il.append(RETURN);
// Compute max locals + stack and add method to class
buildKeys.stripAttributes(true);
buildKeys.setMaxLocals();
buildKeys.setMaxStack();
buildKeys.removeNOPs();
classGen.addMethod(buildKeys.getMethod());
return ("(" + DOM_INTF_SIG + NODE_ITERATOR_SIG + TRANSLET_OUTPUT_SIG + "I)V");
}
