import test from "ava";
import * as fs from "fs";

import vm from "../src/vm";

test("ForInStatement-1", t => {
  const sandbox: any = vm.createContext({});

  const obj: any = vm.runInContext(
    `
const obj = {
  1: false,
  2: false
};

for (let attr in obj) {
  obj[attr] = true;
}

module.exports = obj;
  `,
    sandbox
  );

  t.true(obj[1]);
  t.true(obj[2]);
});

    FunctionExpression: (node: ESTree.FunctionExpression, scope: Scope) => { 
        return function (...args) {
            const new_scope = new Scope('function', scope)
            new_scope.invasived = true
            for (let i = 0; i < node.params.length; i++) {
                const { name } = <ESTree.Identifier>node.params[i]
                new_scope.$const(name, args[i])
            }
            new_scope.$const('this', this)
            new_scope.$const('arguments', arguments)
            const result = evaluate(node.body, new_scope)
            if (result === RETURN_SINGAL) {
                return result.result
            }
        }
    },

    FunctionExpression: (node: ESTree.FunctionExpression, scope: Scope) => { 
        const func function (...args) {
            const new_scope = new Scope('function', scope)
            new_scope.invasived = true
            for (let i = 0; i < node.params.length; i++) {
                const { name } = <ESTree.Identifier>node.params[i]
                new_scope.$const(name, args[i])
            }
            new_scope.$const('this', this)
            new_scope.$const('arguments', arguments)
            const result = evaluate(node.body, new_scope)
            if (result === RETURN_SINGAL) {
                return result.result
            }
        }

        // 手动矫正length
        Object.defineProperty(func, "length", {value: node.params.length});

        return func;
    },