final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
// context node is on the stack
int gname = cpg.addInterfaceMethodref(DOM_INTF,
"getNodeName",
"(I)Ljava/lang/String;");
int cmp = cpg.addMethodref(STRING_CLASS,
"equals", "(Ljava/lang/Object;)Z");
// Push current node on the stack
il.append(methodGen.loadCurrentNode());
il.append(SWAP);
// Overwrite current node with matching node
il.append(methodGen.storeCurrentNode());
// If pattern not reduced then check kernel
if (!_typeChecked) {
il.append(methodGen.loadCurrentNode());
final int getType = cpg.addInterfaceMethodref(DOM_INTF,
"getExpandedTypeID",
"(I)I");
il.append(methodGen.loadDOM());
il.append(methodGen.loadCurrentNode());
il.append(new INVOKEINTERFACE(getType, 2));
il.append(new PUSH(cpg, DTM.PROCESSING_INSTRUCTION_NODE));
_falseList.add(il.append(new IF_ICMPEQ(null)));
}
// Load the requested processing instruction name
il.append(new PUSH(cpg, _name));
// Load the current processing instruction's name
il.append(methodGen.loadDOM());
il.append(methodGen.loadCurrentNode());
il.append(new INVOKEINTERFACE(gname, 2));
// Compare the two strings
il.append(new INVOKEVIRTUAL(cmp));
_falseList.add(il.append(new IFEQ(null)));
// Compile the expressions within the predicates
if (hasPredicates()) {
final int n = _predicates.size();
for (int i = 0; i < n; i++) {
Predicate pred = (Predicate)_predicates.elementAt(i);
Expression exp = pred.getExpr();
exp.translateDesynthesized(classGen, methodGen);
_trueList.append(exp._trueList);
_falseList.append(exp._falseList);
}
}
// Backpatch true list and restore current iterator/node
InstructionHandle restore;
restore = il.append(methodGen.storeCurrentNode());
backPatchTrueList(restore);
BranchHandle skipFalse = il.append(new GOTO(null));
// Backpatch false list and restore current iterator/node
restore = il.append(methodGen.storeCurrentNode());
backPatchFalseList(restore);
_falseList.add(il.append(new GOTO(null)));
// True list falls through
skipFalse.setTarget(il.append(NOP));
