/**
* Gibt das uebergeordnete CFXD Tag Element zurueck, falls dies nicht existiert wird null
* zurueckgegeben.
*
* @param el Element von dem das parent Element zurueckgegeben werden soll.
* @return uebergeordnete CFXD Tag Element
*/
public static Tag getParentTag(Tag tag) {
Statement p = tag.getParent();
if (p == null) return null;
p = p.getParent();
if (p instanceof Tag) return (Tag) p;
return null;
}
public static Page getAncestorPage(Statement stat, Page defaultValue) {
Statement parent = stat;
while (true) {
parent = parent.getParent();
if (parent == null) {
return defaultValue;
}
if (parent instanceof Page) return (Page) parent;
}
}
public static void listAncestor(Statement stat) {
Statement parent = stat;
aprint.o(stat);
while (true) {
parent = parent.getParent();
if (parent instanceof Page)
aprint.o("page-> " + ((Page) parent).getPageSource().getDisplayPath());
else aprint.o("parent-> " + parent);
if (parent == null) break;
}
}
public static Page getAncestorPage(Statement stat) throws BytecodeException {
Statement parent = stat;
while (true) {
parent = parent.getParent();
if (parent == null) {
throw new BytecodeException("missing parent Statement of Statement", stat.getStart());
// return null;
}
if (parent instanceof Page) return (Page) parent;
}
}
/**
* Gibt ein uebergeordnetes Tag mit dem uebergebenen Full-Name (Namespace und Name) zurueck, falls
* ein solches existiert, andernfalls wird null zurueckgegeben.
*
* @param el Startelement, von wo aus gesucht werden soll.
* @param fullName Name des gesuchten Tags.
* @return uebergeornetes Element oder null.
*/
public static Tag getAncestorTag(Tag tag, String fullName) {
Statement parent = tag;
while (true) {
parent = parent.getParent();
if (parent == null) return null;
if (parent instanceof Tag) {
tag = (Tag) parent;
if (tag.getFullname().equalsIgnoreCase(fullName)) return tag;
}
}
}
public static Statement getAncestorTryStatement(Statement stat) {
Statement parent = stat;
while (true) {
parent = parent.getParent();
if (parent == null) return null;
if (parent instanceof TagTry) {
return parent;
} else if (parent instanceof TryCatchFinally) {
return parent;
}
}
}
public static Tag getAncestorComponent(Statement stat) throws BytecodeException {
// print.ln("getAncestorPage:"+stat);
Statement parent = stat;
while (true) {
parent = parent.getParent();
// print.ln(" - "+parent);
if (parent == null) {
throw new BytecodeException("missing parent Statement of Statement", stat.getStart());
// return null;
}
if (parent instanceof TagComponent)
// if(parent instanceof Tag && "component".equals(((Tag)parent).getTagLibTag().getName()))
return (Tag) parent;
}
}
public static boolean isCFC(Statement s) {
Statement p;
while ((p = s.getParent()) != null) {
s = p;
}
return true;
}
public static Statement getRoot(Statement stat) {
while (true) {
if (isRoot(stat)) {
return stat;
}
stat = stat.getParent();
}
}
private static FlowControl getAncestorFCStatement(
Statement stat, List<FlowControlFinal> finallyLabels, int flowType, String label) {
Statement parent = stat;
FlowControlFinal fcf;
while (true) {
parent = parent.getParent();
if (parent == null) return null;
if (((flowType == FlowControl.RETRY && parent instanceof FlowControlRetry)
|| (flowType == FlowControl.CONTINUE && parent instanceof FlowControlContinue)
|| (flowType == FlowControl.BREAK && parent instanceof FlowControlBreak))
&& labelMatch((FlowControl) parent, label)) {
if (parent instanceof ScriptBody) {
List<FlowControlFinal> _finallyLabels =
finallyLabels == null ? null : new ArrayList<FlowControlFinal>();
FlowControl scriptBodyParent =
getAncestorFCStatement(parent, _finallyLabels, flowType, label);
if (scriptBodyParent != null) {
if (finallyLabels != null) {
Iterator<FlowControlFinal> it = _finallyLabels.iterator();
while (it.hasNext()) {
finallyLabels.add(it.next());
}
}
return scriptBodyParent;
}
return (FlowControl) parent;
}
return (FlowControl) parent;
}
// only if not last
if (finallyLabels != null) {
fcf = parent.getFlowControlFinal();
if (fcf != null) {
finallyLabels.add(fcf);
}
}
}
}
public static void dump(Statement s, int level) {
for (int i = 0; i < level; i++) System.err.print("-");
aprint.e(s.getClass().getName());
if (s instanceof HasBody) {
Body b = ((HasBody) s).getBody();
if (b != null) {
Iterator<Statement> it = b.getStatements().iterator();
while (it.hasNext()) {
dump(it.next(), level + 1);
}
}
}
}
public static void leadFlow(BytecodeContext bc, Statement stat, int flowType, String label)
throws BytecodeException {
List<FlowControlFinal> finallyLabels = new ArrayList<FlowControlFinal>();
FlowControl fc;
String name;
if (FlowControl.BREAK == flowType) {
fc = ASMUtil.getAncestorBreakFCStatement(stat, finallyLabels, label);
name = "break";
} else if (FlowControl.CONTINUE == flowType) {
fc = ASMUtil.getAncestorContinueFCStatement(stat, finallyLabels, label);
name = "continue";
} else {
fc = ASMUtil.getAncestorRetryFCStatement(stat, finallyLabels, label);
name = "retry";
}
if (fc == null)
throw new BytecodeException(
name + " must be inside a loop (for,while,do-while,<cfloop>,<cfwhile> ...)",
stat.getStart());
GeneratorAdapter adapter = bc.getAdapter();
Label end;
if (FlowControl.BREAK == flowType) end = ((FlowControlBreak) fc).getBreakLabel();
else if (FlowControl.CONTINUE == flowType) end = ((FlowControlContinue) fc).getContinueLabel();
else end = ((FlowControlRetry) fc).getRetryLabel();
// first jump to all final labels
FlowControlFinal[] arr = finallyLabels.toArray(new FlowControlFinal[finallyLabels.size()]);
if (arr.length > 0) {
FlowControlFinal fcf;
for (int i = 0; i < arr.length; i++) {
fcf = arr[i];
// first
if (i == 0) {
adapter.visitJumpInsn(Opcodes.GOTO, fcf.getFinalEntryLabel());
}
// last
if (arr.length == i + 1) fcf.setAfterFinalGOTOLabel(end);
else fcf.setAfterFinalGOTOLabel(arr[i + 1].getFinalEntryLabel());
}
} else bc.getAdapter().visitJumpInsn(Opcodes.GOTO, end);
}
