@convo-lang/convo-lang/src/lib/scope-functions/convoScopeFunctionEvalJavascript.js

The language of AI

import { ConvoError } from "../ConvoError.js";
import { createConvoScopeFunction } from "../convo-lib.js";
export const convoScopeFunctionEvalJavascript = createConvoScopeFunction(async (scope, ctx) => {
    const js = scope.paramValues?.[0];
    if (js === undefined) {
        return undefined;
    }
    if (typeof js !== 'string') {
        throw new ConvoError('invalid-args', { statement: scope.s }, 'The first arg must be string of javascript or undefined');
    }
    const argNames = [];
    const args = [];
    const addVar = (name, value) => {
        if (argNames.includes(name)) {
            return;
        }
        argNames.push(name);
        args.push(value);
    };
    addVar('scope', scope);
    addVar('ctx', ctx);
    addVar('convo', ctx.convo);
    addVar('setVar', (name, value) => {
        if (typeof name !== 'string') {
            throw new Error('name must be a string');
        }
        return ctx.setVar(true, value, name);
    });
    addVar('print', (...args) => ctx.print(...args));
    for (const e in ctx.sharedVars) {
        addVar(e, ctx.sharedVars[e]);
    }
    // The line below is used to disable esbuild warnings. I know what I'm doing 👍
    const ev = globalThis['eval'];
    const fn = ev(`async (${argNames.join(',')})=>{
        let result=undefined;
        ${js}
        return result;
    }`);
    return await fn(...args);
});
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