@light-merlin-dark/tok/dist/estimators/TiktokenEstimator.js

Fast token estimation and cost calculation for enterprise LLMs with CLI and MCP support

"use strict";
var __createBinding = (this && this.__createBinding) || (Object.create ? (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    var desc = Object.getOwnPropertyDescriptor(m, k);
    if (!desc || ("get" in desc ? !m.__esModule : desc.writable || desc.configurable)) {
      desc = { enumerable: true, get: function() { return m[k]; } };
    }
    Object.defineProperty(o, k2, desc);
}) : (function(o, m, k, k2) {
    if (k2 === undefined) k2 = k;
    o[k2] = m[k];
}));
var __setModuleDefault = (this && this.__setModuleDefault) || (Object.create ? (function(o, v) {
    Object.defineProperty(o, "default", { enumerable: true, value: v });
}) : function(o, v) {
    o["default"] = v;
});
var __importStar = (this && this.__importStar) || (function () {
    var ownKeys = function(o) {
        ownKeys = Object.getOwnPropertyNames || function (o) {
            var ar = [];
            for (var k in o) if (Object.prototype.hasOwnProperty.call(o, k)) ar[ar.length] = k;
            return ar;
        };
        return ownKeys(o);
    };
    return function (mod) {
        if (mod && mod.__esModule) return mod;
        var result = {};
        if (mod != null) for (var k = ownKeys(mod), i = 0; i < k.length; i++) if (k[i] !== "default") __createBinding(result, mod, k[i]);
        __setModuleDefault(result, mod);
        return result;
    };
})();
Object.defineProperty(exports, "__esModule", { value: true });
exports.TiktokenEstimator = void 0;
class TiktokenEstimator {
    enc;
    initialized = false;
    async initialize() {
        if (this.initialized)
            return;
        try {
            const { encoding_for_model } = await Promise.resolve().then(() => __importStar(require('@dqbd/tiktoken')));
            this.enc = encoding_for_model('gpt-4o-mini');
            this.initialized = true;
        }
        catch (error) {
            throw new Error('Tiktoken not available. Install @dqbd/tiktoken for exact token counting.');
        }
    }
    estimate(text) {
        if (!this.initialized) {
            throw new Error('TiktokenEstimator not initialized. Call initialize() first.');
        }
        return this.enc.encode(text).length;
    }
    dispose() {
        if (this.enc) {
            this.enc.free();
            this.enc = null;
            this.initialized = false;
        }
    }
}
exports.TiktokenEstimator = TiktokenEstimator;
//# sourceMappingURL=TiktokenEstimator.js.map