playground.js: display vet errors when program has no output

When program has no output and vet errors are encountered,
initialize data.Events as an empty array.

Fixes golang/go#25455.

Change-Id: Icedd77685b784505da3bb6383629cdfa8b8b22e9
Reviewed-on: https://go-review.googlesource.com/113875
Run-TryBot: Yury Smolsky <yury@smolsky.by>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Andrew Bonventre <andybons@golang.org>
This commit is contained in:
Yury Smolsky 2018-05-20 10:57:22 +03:00 committed by Andrew Bonventre
parent 1937f90a1b
commit a5b4c53f6e
2 changed files with 8 additions and 2 deletions

View File

@ -109,7 +109,10 @@ function HTTPTransport(enableVet) {
dataType: "json",
success: function(dataVet) {
if (dataVet.Errors) {
// inject errors from the vet as the first event in the output
if (!data.Events) {
data.Events = [];
}
// inject errors from the vet as the first events in the output
data.Events.unshift({Message: 'Go vet exited.\n\n', Kind: 'system', Delay: 0});
data.Events.unshift({Message: dataVet.Errors, Kind: 'stderr', Delay: 0});
}

View File

@ -2398,7 +2398,10 @@ function HTTPTransport(enableVet) {
dataType: "json",
success: function(dataVet) {
if (dataVet.Errors) {
// inject errors from the vet as the first event in the output
if (!data.Events) {
data.Events = [];
}
// inject errors from the vet as the first events in the output
data.Events.unshift({Message: 'Go vet exited.\n\n', Kind: 'system', Delay: 0});
data.Events.unshift({Message: dataVet.Errors, Kind: 'stderr', Delay: 0});
}