R language runtime emits a single \n (newline) when interrupted... #1238
Description
When you execute a long-running statement in R and then interrupt it via Ctrl-C (or escape), the onDidReceiveRuntimeMessageStream event is fired on the stderr stream with a \n (newline). This results in a blank line of error output in the console:
This does not happen in RStudio:
I Ctrl-C'd this sleep in RStudio:
Set a breakpoint here on addOrUpdateUpdateRuntimeItemActivity to see the output:
} else if (languageRuntimeMessageStream.name === 'stderr') {
this.addOrUpdateUpdateRuntimeItemActivity(
languageRuntimeMessageStream.parent_id,
new ActivityItemErrorStream(
languageRuntimeMessageStream.id,
languageRuntimeMessageStream.parent_id,
new Date(languageRuntimeMessageStream.when),
languageRuntimeMessageStream.text
)
);
}