agsamantha/node_modules/openai/lib/parser.mjs

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2024-10-02 15:15:21 -05:00
import { ContentFilterFinishReasonError, LengthFinishReasonError, OpenAIError } from 'openai/error';
export function makeParseableResponseFormat(response_format, parser) {
const obj = { ...response_format };
Object.defineProperties(obj, {
$brand: {
value: 'auto-parseable-response-format',
enumerable: false,
},
$parseRaw: {
value: parser,
enumerable: false,
},
});
return obj;
}
export function isAutoParsableResponseFormat(response_format) {
return response_format?.['$brand'] === 'auto-parseable-response-format';
}
export function makeParseableTool(tool, { parser, callback, }) {
const obj = { ...tool };
Object.defineProperties(obj, {
$brand: {
value: 'auto-parseable-tool',
enumerable: false,
},
$parseRaw: {
value: parser,
enumerable: false,
},
$callback: {
value: callback,
enumerable: false,
},
});
return obj;
}
export function isAutoParsableTool(tool) {
return tool?.['$brand'] === 'auto-parseable-tool';
}
export function maybeParseChatCompletion(completion, params) {
if (!params || !hasAutoParseableInput(params)) {
return {
...completion,
choices: completion.choices.map((choice) => ({
...choice,
message: { ...choice.message, parsed: null, tool_calls: choice.message.tool_calls ?? [] },
})),
};
}
return parseChatCompletion(completion, params);
}
export function parseChatCompletion(completion, params) {
const choices = completion.choices.map((choice) => {
if (choice.finish_reason === 'length') {
throw new LengthFinishReasonError();
}
if (choice.finish_reason === 'content_filter') {
throw new ContentFilterFinishReasonError();
}
return {
...choice,
message: {
...choice.message,
tool_calls: choice.message.tool_calls?.map((toolCall) => parseToolCall(params, toolCall)) ?? [],
parsed: choice.message.content && !choice.message.refusal ?
parseResponseFormat(params, choice.message.content)
: null,
},
};
});
return { ...completion, choices };
}
function parseResponseFormat(params, content) {
if (params.response_format?.type !== 'json_schema') {
return null;
}
if (params.response_format?.type === 'json_schema') {
if ('$parseRaw' in params.response_format) {
const response_format = params.response_format;
return response_format.$parseRaw(content);
}
return JSON.parse(content);
}
return null;
}
function parseToolCall(params, toolCall) {
const inputTool = params.tools?.find((inputTool) => inputTool.function?.name === toolCall.function.name);
return {
...toolCall,
function: {
...toolCall.function,
parsed_arguments: isAutoParsableTool(inputTool) ? inputTool.$parseRaw(toolCall.function.arguments)
: inputTool?.function.strict ? JSON.parse(toolCall.function.arguments)
: null,
},
};
}
export function shouldParseToolCall(params, toolCall) {
if (!params) {
return false;
}
const inputTool = params.tools?.find((inputTool) => inputTool.function?.name === toolCall.function.name);
return isAutoParsableTool(inputTool) || inputTool?.function.strict || false;
}
export function hasAutoParseableInput(params) {
if (isAutoParsableResponseFormat(params.response_format)) {
return true;
}
return (params.tools?.some((t) => isAutoParsableTool(t) || (t.type === 'function' && t.function.strict === true)) ?? false);
}
export function validateInputTools(tools) {
for (const tool of tools ?? []) {
if (tool.type !== 'function') {
throw new OpenAIError(`Currently only \`function\` tool types support auto-parsing; Received \`${tool.type}\``);
}
if (tool.function.strict !== true) {
throw new OpenAIError(`The \`${tool.function.name}\` tool is not marked with \`strict: true\`. Only strict function tools can be auto-parsed`);
}
}
}
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