@sudoo/marked/evaluate/for-statement.js

JavaScript & TypeScript code runner in JavaScript, safe with marked territory, asynchronous

"use strict";
/**
 * @author WMXPY
 * @namespace Evaluate
 * @description For Statement
 */
var __awaiter = (this && this.__awaiter) || function (thisArg, _arguments, P, generator) {
    function adopt(value) { return value instanceof P ? value : new P(function (resolve) { resolve(value); }); }
    return new (P || (P = Promise))(function (resolve, reject) {
        function fulfilled(value) { try { step(generator.next(value)); } catch (e) { reject(e); } }
        function rejected(value) { try { step(generator["throw"](value)); } catch (e) { reject(e); } }
        function step(result) { result.done ? resolve(result.value) : adopt(result.value).then(fulfilled, rejected); }
        step((generator = generator.apply(thisArg, _arguments || [])).next());
    });
};
Object.defineProperty(exports, "__esModule", { value: true });
exports.forStatementEvaluator = exports.mountForStatement = void 0;
const error_code_1 = require("../declare/error-code");
const error_1 = require("../util/error/error");
const context_1 = require("../util/node/context");
const declare_1 = require("../variable/declare");
const flag_1 = require("../variable/flag");
const mountForStatement = (sandbox) => {
    sandbox.mount("ForStatement", exports.forStatementEvaluator);
};
exports.mountForStatement = mountForStatement;
const forStatementEvaluator = function (node, scope, trace) {
    return __awaiter(this, void 0, void 0, function* () {
        const nextTrace = trace.stack(node);
        const subScope = scope.child();
        const limitCounter = new context_1.LimitCounter(this.getOption("maxForLoopLimit"));
        if (node.init) {
            yield this.execute(node.init, subScope, nextTrace);
        }
        const test = () => __awaiter(this, void 0, void 0, function* () {
            if (node.test) {
                const result = yield this.execute(node.test, subScope, nextTrace);
                return Boolean(result);
            }
            return true;
        });
        const update = () => __awaiter(this, void 0, void 0, function* () {
            if (node.update) {
                yield this.execute(node.update, subScope, nextTrace);
            }
        });
        let loopIsBreaking = false;
        let loopIsContinuing = false;
        if (trace.hasLabel()) {
            scope.registerLabelListener(trace.ensureLabel(), (type) => {
                if (type === declare_1.SCOPE_LABEL_LISTENER_TYPE.BREAK) {
                    this.skip();
                    loopIsBreaking = true;
                }
                if (type === declare_1.SCOPE_LABEL_LISTENER_TYPE.CONTINUE) {
                    this.skip();
                    loopIsContinuing = true;
                }
            });
        }
        loop: for (limitCounter.reset(); yield test(); limitCounter.add()) {
            if (limitCounter.check()) {
                this.break();
                throw (0, error_1.error)(error_code_1.ERROR_CODE.MAXIMUM_FOR_LOOP_LIMIT_EXCEED, void 0, node, trace);
            }
            if (loopIsBreaking) {
                this.recoverFromSkip();
                break loop;
            }
            const result = yield this.execute(node.body, subScope, nextTrace);
            if (loopIsContinuing) {
                this.recoverFromSkip();
                loopIsContinuing = false;
                yield update();
                continue loop;
            }
            if (result instanceof flag_1.Flag) {
                if (result.isBreak()) {
                    if (typeof result.getValue() === "string") {
                        const breakingLabel = result.getValue();
                        scope.executeLabelListener(breakingLabel, declare_1.SCOPE_LABEL_LISTENER_TYPE.BREAK);
                        break loop;
                    }
                    break loop;
                }
                else if (result.isReturn()) {
                    return result;
                }
                else if (result.isContinue()) {
                    if (typeof result.getValue() === "string") {
                        if (trace.hasLabel()
                            && trace.ensureLabel() === result.getValue()) {
                            yield update();
                            continue loop;
                        }
                        const continuingLabel = result.getValue();
                        scope.executeLabelListener(continuingLabel, declare_1.SCOPE_LABEL_LISTENER_TYPE.CONTINUE);
                        break loop;
                    }
                    yield update();
                    continue loop;
                }
                else {
                    throw (0, error_1.error)(error_code_1.ERROR_CODE.INTERNAL_ERROR, void 0, node, trace);
                }
            }
            yield update();
        }
        if (loopIsBreaking || loopIsContinuing) {
            this.recoverFromSkip();
        }
        return;
    });
};
exports.forStatementEvaluator = forStatementEvaluator;