prepack/lib/debugger/server/StopEventManager.js

Execute a JS bundle, serialize global state and side effects to a snapshot that can be quickly restored.

"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.StopEventManager = void 0;

var _invariant = _interopRequireDefault(require("./../common/invariant.js"));

var _Breakpoint = require("./Breakpoint.js");

var _Stepper = require("./Stepper.js");

var _types = require("@babel/types");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

/**
 * Copyright (c) 2017-present, Facebook, Inc.
 * All rights reserved.
 *
 * This source code is licensed under the BSD-style license found in the
 * LICENSE file in the root directory of this source tree. An additional grant
 * of patent rights can be found in the PATENTS file in the same directory.
 */

/*  strict-local */
// Manage whether the debuggee should stop
// All stopping related logic is centralized here
class StopEventManager {
  // stoppables is a list of objects the debuggee should be stopped on
  // (e.g. breakpoint, completed steppers). The debuggee should stop if there
  // is at least one element in the list. Currently the reason of the first element
  // is chosen as the reason sent to the UI
  getDebuggeeStopReason(ast, stoppables) {
    if (stoppables.length === 0) return;
    let stoppable = stoppables[0];
    let stoppedReason;

    if (stoppable instanceof _Breakpoint.Breakpoint) {
      stoppedReason = "Breakpoint";
    } else if (stoppable instanceof _Stepper.StepIntoStepper) {
      stoppedReason = "Step Into";
    } else if (stoppable instanceof _Stepper.StepOverStepper) {
      stoppedReason = "Step Over";
    } else if (stoppable instanceof _Stepper.StepOutStepper) {
      stoppedReason = "Step Out";
    } else {
      (0, _invariant.default)(false, "Invalid stoppable object");
    }

    return stoppedReason;
  }

}

exports.StopEventManager = StopEventManager;
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