private void parseVersionInContext(
int linkageID,
LinkageTask map,
IIndexFileLocation ifl,
final FileVersionTask versionTask,
Object tu,
LinkedHashSet<IIndexFile> safeGuard,
IProgressMonitor monitor)
throws CoreException, InterruptedException {
final IIndexFragmentFile headerFile = versionTask.fIndexFile;
final int safeguardSize = safeGuard.size();
while (true) {
// Look for a context and parse the file.
IIndexFragmentFile ctxFile = findContextFile(linkageID, map, versionTask, safeGuard, monitor);
if (ctxFile == null || ctxFile == headerFile) return;
Object contextTu = fResolver.getInputFile(ctxFile.getLocation());
if (contextTu == null) return;
final IScannerInfo scannerInfo = getScannerInfo(linkageID, contextTu);
final AbstractLanguage language = getLanguage(contextTu, linkageID);
final FileContext ctx = new FileContext(ctxFile, headerFile);
Set<IIndexFile> dependencies = null;
boolean done = false;
while (!done) {
done = true;
DependsOnOutdatedFileException d = parseFile(tu, language, ifl, scannerInfo, ctx, monitor);
if (d != null) {
// File was not parsed, because there is a dependency that needs to be
// handled before.
if (dependencies == null) dependencies = new HashSet<IIndexFile>();
if (dependencies.add(d.fIndexFile)) {
if (parseFile(
d.fTu,
language,
d.fIndexFile.getLocation(),
scannerInfo,
new FileContext(ctxFile, d.fIndexFile),
monitor)
== null) done = false;
}
}
}
if (!ctx.fLostPragmaOnceSemantics) return;
// Try the next context
restoreSet(safeGuard, safeguardSize);
}
}
@Override
public void clearFile(IIndexFragmentFile file) throws CoreException {
assert file.getIndexFragment() == this;
IIndexFileLocation location = file.getLocation();
PDOMFile pdomFile = (PDOMFile) file;
pdomFile.clear();
IIndexInclude include = pdomFile.getParsedInContext();
if (include != null) {
PDOMFile includedBy = (PDOMFile) include.getIncludedBy();
if (includedBy.getTimestamp() > 0)
getIndexOfFilesWithUnresolvedIncludes().insert(includedBy.getRecord());
}
fEvent.fClearedFiles.add(location);
}
private IIndexFragmentFile findContextFile(
int linkageID,
LinkageTask map,
final FileVersionTask versionTask,
LinkedHashSet<IIndexFile> safeGuard,
IProgressMonitor monitor)
throws CoreException, InterruptedException {
IIndexFragmentFile ctxFile = versionTask.fIndexFile;
while (true) {
IIndexInclude ctxInclude = ctxFile.getParsedInContext();
if (ctxInclude == null) return ctxFile;
IIndexFragmentFile nextCtx = (IIndexFragmentFile) ctxInclude.getIncludedBy();
if (nextCtx == null) return nextCtx;
// Found a recursion.
if (!safeGuard.add(nextCtx)) return null;
final IIndexFileLocation ctxIfl = nextCtx.getLocation();
LocationTask ctxTask = map.find(ctxIfl);
if (ctxTask != null) {
FileVersionTask ctxVersionTask = ctxTask.findVersion(nextCtx);
if (ctxVersionTask != null && ctxVersionTask.fOutdated) {
// Handle the context first.
parseVersionInContext(
linkageID, map, ctxIfl, ctxVersionTask, ctxTask.fTu, safeGuard, monitor);
if (ctxVersionTask.fOutdated // This is unexpected.
|| !versionTask.fOutdated) // Our file was parsed.
return null;
// The file is no longer a context, look for a different one.
nextCtx = ctxFile;
}
}
ctxFile = nextCtx;
}
}
