/**
* makes a best effort to get a precise position for this element
*
* @param e
* @return
*/
public static WPos getPos(AstElement e) {
if (e instanceof AstElementWithSource) {
AstElementWithSource ws = (AstElementWithSource) e;
return ws.getSource();
}
if (e.size() > 0) { // try to find the position by examining the childs
int min = Integer.MAX_VALUE;
int max = Integer.MIN_VALUE;
for (int i = 0; i < e.size(); i++) {
AstElement child = e.get(i);
WPos childSource = child.attrSource();
min = Math.min(min, childSource.getLeftPos());
max = Math.max(max, childSource.getRightPos());
}
return new WPos(
e.get(0).attrSource().getFile(), e.get(0).attrSource().getLineOffsets(), min, max);
}
// if no childs exist, search a parent element with a explicit position
AstElement parent = e.getParent();
while (parent != null) {
if (parent instanceof AstElementWithSource) {
WPos parentSource = ((AstElementWithSource) parent).getSource();
// use parent position but with size -1, so we do not go into this
return new WPos(
parentSource.getFile(),
parentSource.getLineOffsets(),
parentSource.getLeftPos(),
parentSource.getLeftPos() - 1);
}
parent = parent.getParent();
}
return new WPos("<source of " + e + " not found>", new LineOffsets(), 0, 0);
}
private void passStacktraceParams(
final Multimap<ImFunction, ImFunctionCall> calls, Set<ImFunction> affectedFuncs) {
// pass the stacktrace parameter at all cals
for (ImFunction f : affectedFuncs) {
for (ImFunctionCall call : calls.get(f)) {
ImFunction caller = call.getNearestFunc();
ImExpr stExpr;
if (isMainOrConfig(caller)) {
stExpr = str(" " + f.getName());
} else {
ImVar stackTraceVar = getStackTraceVar(caller);
WPos source = call.attrTrace().attrSource();
String callPos;
if (source.getFile().startsWith("<")) {
callPos = "";
} else {
callPos = "\n " + source.printShort();
}
stExpr =
JassIm.ImOperatorCall(
WurstOperator.PLUS,
JassIm.ImExprs(str(callPos), JassIm.ImVarAccess(stackTraceVar)));
}
call.getArguments().add(stExpr);
}
}
}
private static CompileError makeCompileError(
AstElement e, String msg, ErrorHandler handler, CompileError.ErrorType errorType)
throws CompileError {
WPos pos = e.attrErrorPos();
if (handler.isUnitTestMode()) {
throw new CompileError(pos, msg);
}
ListIterator<CompileError> it = handler.getErrors().listIterator();
while (it.hasNext()) {
CompileError err = it.next();
if (err.getSource().getFile().equals(pos.getFile())) {
if (bigger(err.getSource(), pos)) {
// remove bigger errors
it.remove();
} else if (bigger(pos, err.getSource()) || equal(pos, err.getSource())) {
// do not add smaller or equal errors
return null;
}
}
}
return new CompileError(pos, msg, errorType);
}