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fix(go/plugins/googlegenai): runtime panic if no candidates returned #2925

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Merged
merged 1 commit into from
May 21, 2025
+10 −7
Merged

fix(go/plugins/googlegenai): runtime panic if no candidates returned #2925

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17 changes: 10 additions & 7 deletions go/plugins/googlegenai/gemini.go
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Original file line number Diff line number Diff line change
Expand Up @@ -451,11 +451,6 @@ func generate(
}
resp.Candidates = merged
r = translateResponse(resp)
if r == nil {
// No candidates were returned. Probably rare, but it might avoid a NPE
// to return an empty instead of nil result.
r = &ai.ModelResponse{}
}
r.Request = input
if cache != nil {
r.Message.Metadata = setCacheMetadata(r.Message.Metadata, cache)
Expand Down Expand Up @@ -840,9 +835,17 @@ func translateCandidate(cand *genai.Candidate) *ai.ModelResponse {

// Translate from a genai.GenerateContentResponse to a ai.ModelResponse.
func translateResponse(resp *genai.GenerateContentResponse) *ai.ModelResponse {
r := translateCandidate(resp.Candidates[0])
var r *ai.ModelResponse
if len(resp.Candidates) > 0 {
r = translateCandidate(resp.Candidates[0])
} else {
r = &ai.ModelResponse{}
}

if r.Usage == nil {
r.Usage = &ai.GenerationUsage{}
}

r.Usage = &ai.GenerationUsage{}
if u := resp.UsageMetadata; u != nil {
r.Usage.InputTokens = int(u.PromptTokenCount)
r.Usage.OutputTokens = int(u.CandidatesTokenCount)
Expand Down
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