Always show the correct error string from the script engine.

Meaning that we check whether the value is an error or the engine has an
uncaught exception, and print the respective string.

Change-Id: Ie2912e28a82906c7ee9323e2f0e55c6b3de96872
Reviewed-by: Joerg Bornemann <joerg.bornemann@theqtcompany.com>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib/corelib/buildgraph/processcommandexecutor.cpp b/src/lib/corelib/buildgraph/processcommandexecutor.cpp
index b40e83649..87ac1c920 100644
--- a/src/lib/corelib/buildgraph/processcommandexecutor.cpp
+++ b/src/lib/corelib/buildgraph/processcommandexecutor.cpp
@@ -188,7 +188,7 @@ QString ProcessCommandExecutor::filterProcessOutput(const QByteArray &_output,
     QScriptValue filteredOutput = filterFunction.call(scriptEngine()->undefinedValue(), outputArg);
     if (scriptEngine()->hasErrorOrException(filteredOutput)) {
         logger().printWarning(ErrorInfo(Tr::tr("Error when calling output filter function: %1")
-                         .arg(filteredOutput.toString())));
+                         .arg(scriptEngine()->lastErrorString(filteredOutput))));
         return output;
     }