| Methods Summary |
|---|
| public com.sun.org.apache.xalan.internal.xsltc.compiler.StepPattern | getKernelPattern()
return _right.getKernelPattern();
|
| public com.sun.org.apache.bcel.internal.generic.InstructionHandle | getLoopHandle()
return _loop;
|
| public boolean | isWildcard()
//!!! can be wildcard
return false;
|
| public void | reduceKernelPattern()
_right.reduceKernelPattern();
|
| public void | setParser(com.sun.org.apache.xalan.internal.xsltc.compiler.Parser parser)
super.setParser(parser);
if (_left != null) {
_left.setParser(parser);
}
_right.setParser(parser);
|
| public java.lang.String | toString()
return "AncestorPattern(" + _left + ", " + _right + ')";
|
| public void | translate(com.sun.org.apache.xalan.internal.xsltc.compiler.util.ClassGenerator classGen, com.sun.org.apache.xalan.internal.xsltc.compiler.util.MethodGenerator methodGen)
InstructionHandle parent;
final ConstantPoolGen cpg = classGen.getConstantPool();
final InstructionList il = methodGen.getInstructionList();
/*
* The scope of this local var must be the entire method since
* a another pattern may decide to jump back into the loop
*/
final LocalVariableGen local =
methodGen.addLocalVariable2("app", Util.getJCRefType(NODE_SIG),
il.getEnd());
final com.sun.org.apache.bcel.internal.generic.Instruction loadLocal =
new ILOAD(local.getIndex());
final com.sun.org.apache.bcel.internal.generic.Instruction storeLocal =
new ISTORE(local.getIndex());
if (_right instanceof StepPattern) {
il.append(DUP);
il.append(storeLocal);
_right.translate(classGen, methodGen);
il.append(methodGen.loadDOM());
il.append(loadLocal);
}
else {
_right.translate(classGen, methodGen);
if (_right instanceof AncestorPattern) {
il.append(methodGen.loadDOM());
il.append(SWAP);
}
}
if (_left != null) {
final int getParent = cpg.addInterfaceMethodref(DOM_INTF,
GET_PARENT,
GET_PARENT_SIG);
parent = il.append(new INVOKEINTERFACE(getParent, 2));
il.append(DUP);
il.append(storeLocal);
_falseList.add(il.append(new IFLT(null)));
il.append(loadLocal);
_left.translate(classGen, methodGen);
final SyntaxTreeNode p = getParent();
if (p == null || p instanceof Instruction ||
p instanceof TopLevelElement)
{
// do nothing
}
else {
il.append(loadLocal);
}
final BranchHandle exit = il.append(new GOTO(null));
_loop = il.append(methodGen.loadDOM());
il.append(loadLocal);
local.setEnd(_loop);
il.append(new GOTO(parent));
exit.setTarget(il.append(NOP));
_left.backPatchFalseList(_loop);
_trueList.append(_left._trueList);
}
else {
il.append(POP2);
}
/*
* If _right is an ancestor pattern, backpatch this pattern's false
* list to the loop that searches for more ancestors.
*/
if (_right instanceof AncestorPattern) {
final AncestorPattern ancestor = (AncestorPattern) _right;
_falseList.backPatch(ancestor.getLoopHandle()); // clears list
}
_trueList.append(_right._trueList);
_falseList.append(_right._falseList);
|
| public com.sun.org.apache.xalan.internal.xsltc.compiler.util.Type | typeCheck(com.sun.org.apache.xalan.internal.xsltc.compiler.SymbolTable stable)
if (_left != null) {
_left.typeCheck(stable);
}
return _right.typeCheck(stable);
|
