@mariozechner/jailjs/dist/parser.js

Lightweight JavaScript interpreter for isolated execution. For plugins, user scripts, and browser extensions. Not for adversarial code - use SandboxJS or isolated-vm for that.

import { parse as babelParse } from "@babel/parser";
/**
 * Parse JavaScript code into an AST
 *
 * This is a thin wrapper around @babel/parser that configures it
 * for ES5 script parsing. Users can import this to parse code,
 * or use their own parser and pass the AST to the interpreter.
 *
 * @param code - JavaScript code to parse
 * @returns Babel AST Program node
 */
export function parse(code) {
    try {
        const ast = babelParse(code, {
            sourceType: "script",
            plugins: [],
        });
        return ast.program;
    }
    catch (parseError) {
        throw new Error(`Parse error: ${parseError.message}`);
    }
}
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