forgetest1
/
antlr
forked from jasder/antlr
1
0
Fork 0
Code Issues Pull Requests 1 Releases Wiki Activity

Updated ConcurrentDictionary usage in PredictionContext

This commit is contained in:
Sam Harwell 2013-02-19 11:39:49 -06:00
parent dbdec984e2
commit 040896b40a
1 changed files with 5 additions and 5 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

10
Antlr4.Runtime/Atn/PredictionContext.cs
View File

@ -381,8 +381,8 @@ namespace Antlr4.Runtime.Atn
} }
if (!changed) if (!changed)
{ {
existing = contextCache.PutIfAbsent(context, context); existing = contextCache.GetOrAdd(context, context);
visited.Put(context, existing != null ? existing : context); visited.Put(context, existing);
return context; return context;
} }
// We know parents.length>0 because context.isEmpty() is checked at the beginning of the method. // We know parents.length>0 because context.isEmpty() is checked at the beginning of the method.
@ -397,9 +397,9 @@ namespace Antlr4.Runtime.Atn
updated = new ArrayPredictionContext(parents, arrayPredictionContext.returnStates updated = new ArrayPredictionContext(parents, arrayPredictionContext.returnStates
, context.cachedHashCode); , context.cachedHashCode);
} }
existing = contextCache.PutIfAbsent(updated, updated); existing = contextCache.GetOrAdd(updated, updated);
visited.Put(updated, existing != null ? existing : updated); visited.Put(updated, existing);
visited.Put(context, existing != null ? existing : updated); visited.Put(context, existing);
return updated; return updated;
} }