@openai/agents-core/dist/runner/streaming.mjs

The OpenAI Agents SDK is a lightweight yet powerful framework for building multi-agent workflows.

import logger from "../logger.mjs";
import { RunItemStreamEvent } from "../events.mjs";
import { RunHandoffCallItem, RunHandoffOutputItem, RunMessageOutputItem, RunReasoningItem, RunToolApprovalItem, RunToolCallItem, RunToolCallOutputItem, } from "../items.mjs";
export const isAbortError = (error) => {
    if (!error) {
        return false;
    }
    if (error instanceof Error && error.name === 'AbortError') {
        return true;
    }
    const DomExceptionCtor = typeof DOMException !== 'undefined' ? DOMException : undefined;
    if (DomExceptionCtor &&
        error instanceof DomExceptionCtor &&
        error.name === 'AbortError') {
        return true;
    }
    return false;
};
function getRunItemStreamEventName(item) {
    if (item instanceof RunMessageOutputItem) {
        return 'message_output_created';
    }
    if (item instanceof RunHandoffCallItem) {
        return 'handoff_requested';
    }
    if (item instanceof RunHandoffOutputItem) {
        return 'handoff_occurred';
    }
    if (item instanceof RunToolCallItem) {
        return 'tool_called';
    }
    if (item instanceof RunToolCallOutputItem) {
        return 'tool_output';
    }
    if (item instanceof RunReasoningItem) {
        return 'reasoning_item_created';
    }
    if (item instanceof RunToolApprovalItem) {
        return 'tool_approval_requested';
    }
    return undefined;
}
function enqueueRunItemStreamEvent(result, item) {
    const itemName = getRunItemStreamEventName(item);
    if (!itemName) {
        logger.warn('Unknown item type: ', item);
        return;
    }
    result._addItem(new RunItemStreamEvent(itemName, item));
}
export function streamStepItemsToRunResult(result, items) {
    for (const item of items) {
        enqueueRunItemStreamEvent(result, item);
    }
}
export function addStepToRunResult(result, step, options) {
    const skippedItems = options?.skipItems;
    for (const item of step.newStepItems) {
        if (skippedItems?.has(item)) {
            continue;
        }
        enqueueRunItemStreamEvent(result, item);
    }
}
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