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fix: emit text-start before completion to prevent first char being dropped #178

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Merged
grabbou merged 2 commits into from
Jan 24, 2026
+12 −19
Merged

fix: emit text-start before completion to prevent first char being dropped #178

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1e53d4e
fix: emit text-start before completion to prevent first char being dr…
grabbou Jan 22, 2026
3309427
chore: remove comments
grabbou Jan 22, 2026
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31 changes: 12 additions & 19 deletions packages/llama/src/ai-sdk.ts
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Original file line number Diff line number Diff line change
Expand Up @@ -426,13 +426,18 @@ export class LlamaLanguageModel implements LanguageModelV3 {
try {
let textId = generateId()

let state: LLMState = 'none' as LLMState
let state: LLMState = 'text' as LLMState

controller.enqueue({
type: 'stream-start',
warnings: [],
})

controller.enqueue({
type: 'text-start',
id: textId,
})

const result = await context.completion(
completionOptions,
(tokenData: TokenData) => {
Expand Down Expand Up @@ -467,28 +472,16 @@ export class LlamaLanguageModel implements LanguageModelV3 {
})
}

state = 'none'
state = 'text'
textId = generateId()
controller.enqueue({
type: 'text-start',
id: textId,
})
break

default:
// process regular token

switch (state) {
case 'none':
// start text block
state = 'text'
textId = generateId()
controller.enqueue({
type: 'text-start',
id: textId,
})
controller.enqueue({
type: 'text-delta',
id: textId,
delta: token,
})
break

case 'text':
// continue text block
controller.enqueue({
Expand Down