private void UpdateCache(IncludeManagerParameter parameter, HashSet <string> parsedIncludes, CppCodeModel codeModel, List <CodeSpecificException> codeSpecificExceptions)
{
log.LogVerbose("Start updating the include cache.");
Stopwatch loadWatch = new Stopwatch();
loadWatch.Start();
using (IIncludeCacheTransaction cacheTransaction = includeCache.StartTransaction())
{
Stopwatch checkWatch = new Stopwatch();
checkWatch.Start();
IncludeCacheEntry[] staleEntries = includeCache.Version < JsonIncludeCache.CurrentVersion
? includeCache.Entries.ToArray()
: FindStaleAndOutdatedEntries().ToArray();
foreach (IncludeCacheEntry staleEntry in staleEntries)
{
cacheTransaction.DeleteEntry(staleEntry);
}
checkWatch.Stop();
log.LogVerbose($"Checked files in {checkWatch.ElapsedMilliseconds} ms.");
AddOrUpdate(parameter.IncludeDefinitions, cacheTransaction, parsedIncludes, codeModel, codeSpecificExceptions, parameter);
}
loadWatch.Stop();
log.LogVerbose($"Finished updating the include cache in {loadWatch.ElapsedMilliseconds} ms.");
IEnumerable <IncludeCacheEntry> FindStaleAndOutdatedEntries()
{
return(includeCache.Entries.Where(e => !fileSystem.FileExists(e.File) || fileSystem.GetLastWriteTime(e.File) != e.LastWriteTime));
}
}
public IEnumerable <CodeSpecificException> InitializeCodeModel(CppCodeModel codeModel, IncludeManagerParameter parameter)
{
HashSet <string> parsedIncludes = new HashSet <string>(parameter.KnownIncludes);
List <CodeSpecificException> codeSpecificExceptions = new List <CodeSpecificException>();
VirtualFile cacheFile = fileSystem.GetFile(IncludeFilePath.CleanPath().ResolvePathName(environmentService.PathNames));
includeCache.LoadCache(cacheFile);
UpdateCache();
codeModel.IncludeDirectories = parameter.IncludeDirectories;
codeModel.RegisterIncludeTypeFinder(s => FindIncludeType(s, parameter.IncludeDirectories));
this.codeModel = codeModel;
return(codeSpecificExceptions);
void UpdateCache()
{
log.LogVerbose("Start updating the include cache.");
Stopwatch loadWatch = new Stopwatch();
loadWatch.Start();
using (IIncludeCacheTransaction cacheTransaction = includeCache.StartTransaction())
{
Stopwatch checkWatch = new Stopwatch();
checkWatch.Start();
foreach (IncludeCacheEntry staleEntry in FindStaleAndOutdatedEntries().ToArray())
{
cacheTransaction.DeleteEntry(staleEntry);
}
checkWatch.Stop();
log.LogVerbose($"Checked files in {checkWatch.ElapsedMilliseconds} ms.");
AddOrUpdate(parameter.IncludeDefinitions, cacheTransaction);
}
loadWatch.Stop();
log.LogVerbose($"Finished updating the include cache in {loadWatch.ElapsedMilliseconds} ms.");
IEnumerable <IncludeCacheEntry> FindStaleAndOutdatedEntries()
{
return(includeCache.Entries.Where(e => !fileSystem.FileExists(e.File) ||
fileSystem.GetLastWriteTime(e.File) != e.LastWriteTime));
}
void AddOrUpdate(IEnumerable <IncludeDefinition> includes, IIncludeCacheTransaction cacheTransaction)
{
Stack <IncludeDefinition> unvisited = new Stack <IncludeDefinition>(includes);
while (unvisited.Any())
{
IncludeDefinition include = unvisited.Pop();
if (TryFindInclude(include, out IncludeFindResult findResult))
{
IEnumerable <IncludeDefinition> childDefinitions;
if (findResult.IsInCache)
{
VirtualFile cacheSourceFile = fileSystem.GetFile(findResult.IncludeCacheEntry.File);
VirtualDirectory cacheBaseDirectory = fileSystem.GetDirectory(findResult.IncludeCacheEntry.BaseDirectory);
parsedIncludes.Add(cacheSourceFile.GetRelativePath(cacheBaseDirectory));
childDefinitions = findResult.IncludeCacheEntry.Includes
.Select(i => new IncludeDefinition(i, cacheSourceFile,
cacheBaseDirectory));
}
else
{
parsedIncludes.Add(findResult.IncludeFile.GetRelativePath(findResult.IncludeBaseDirectory));
childDefinitions = ProcessInclude(findResult.IncludeFile, findResult.IncludeBaseDirectory);
}
foreach (IncludeDefinition childDefinition in childDefinitions)
{
unvisited.Push(childDefinition);
}
}
}
IEnumerable <IncludeDefinition> ProcessInclude(VirtualFile findResultIncludeFile, VirtualDirectory findResultIncludeBaseDirectory)
{
ParserResult parserResult = fileParser.Parse(findResultIncludeFile);
if (!parserResult.Success)
{
codeSpecificExceptions.AddRange(parserResult.Exceptions);
cacheTransaction.AddEntry(new IncludeCacheEntry(findResultIncludeFile.FullName,
false,
findResultIncludeFile.LastWriteTime,
findResultIncludeBaseDirectory.FullName,
Enumerable.Empty <string>(),
Enumerable.Empty <string>()));
return(Enumerable.Empty <IncludeDefinition>());
}
foreach (IType type in parserResult.Types.Keys)
{
codeModel.AddType(type, findResultIncludeFile, findResultIncludeBaseDirectory);
}
codeSpecificExceptions.AddRange(parserResult.Exceptions);
cacheTransaction.AddEntry(new IncludeCacheEntry(findResultIncludeFile.FullName,
true,
findResultIncludeFile.LastWriteTime,
findResultIncludeBaseDirectory.FullName,
parserResult.Types.Keys.Select(t => t.FullName),
parserResult.Includes));
return(parserResult.Includes.Select(
i => new IncludeDefinition(
i, findResultIncludeFile, findResultIncludeBaseDirectory)));
}
bool TryFindInclude(IncludeDefinition current, out IncludeFindResult result)
{
if (current.Include.Trim().StartsWith("<", StringComparison.Ordinal))
{
//system includes in form <algorithms> are ignored
result = null;
return(false);
}
//Try parse relative to source
if (current.DefinitionSourceFile.Parent.TryGetFileFromPath(current.Include, out VirtualFile file))
{
if (parsedIncludes.Contains(file.GetRelativePath(current.DefinitionSourceBaseDirectory)))
{
result = null;
return(false);
}
result = includeCache.TryGetCacheEntry(file.FullName, out IncludeCacheEntry cacheEntry)
? new IncludeFindResult(cacheEntry)
: new IncludeFindResult(file, current.DefinitionSourceBaseDirectory);
return(true);
}
//Parse relative to include path
foreach (VirtualDirectory includeDirectory in parameter.IncludeDirectories.Values.Where(v => v != null))
{
if (includeDirectory.TryGetFileFromPath(current.Include, out file))
{
if (parsedIncludes.Contains(file.GetRelativePath(includeDirectory)))
{
result = null;
return(false);
}
result = includeCache.TryGetCacheEntry(file.FullName, out IncludeCacheEntry cacheEntry)
? new IncludeFindResult(cacheEntry)
: new IncludeFindResult(file, includeDirectory);
return(true);
}
}
log.LogWarning($"Could not find include {current.Include}. Possible types from these files will not be parsed.");
result = null;
return(false);
}
}
}
}