Cache static compilation units

If we load the same file multiple times, we can re-use the old mapping.
In fact we may leak memory if we don't. The fact that we have to use a
mutex here is somewhat regrettable, but I haven't found a better way
of serializing access.

Task-number: QTBUG-89659
Pick-to: 5.15
Change-Id: Iaa44ac80faa5e95f30c05e950ab35083a8b0416b
Reviewed-by: Fabian Kosmale <fabian.kosmale@qt.io>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/qml/jsruntime/qv4executablecompilationunit.cpp b/src/qml/jsruntime/qv4executablecompilationunit.cpp
index 5aaec63a05..8ef8ae2221 100644
--- a/src/qml/jsruntime/qv4executablecompilationunit.cpp
+++ b/src/qml/jsruntime/qv4executablecompilationunit.cpp
@@ -764,7 +764,7 @@ bool ExecutableCompilationUnit::loadFromDisk(const QUrl &url, const QDateTime &s
 
     const QStringList cachePaths = { sourcePath + QLatin1Char('c'), localCacheFilePath(url) };
     for (const QString &cachePath : cachePaths) {
-        CompiledData::Unit *mappedUnit = cacheFile->open(cachePath, sourceTimeStamp, errorString);
+        CompiledData::Unit *mappedUnit = cacheFile->get(cachePath, sourceTimeStamp, errorString);
         if (!mappedUnit)
             continue;