prepack/lib/evaluators/ClassExpression.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.default = function (ast, strictCode, env, realm) {
  // 1. If BindingIdentifieropt is not present, let className be undefined.
  let className;
  // 2. Else, let className be StringValue of BindingIdentifier.
  if (ast.id) {
    className = ast.id.name;
  }
  // 3. Let value be the result of ClassDefinitionEvaluation of ClassTail with argument className.
  let value = (0, _ClassDeclaration.ClassDefinitionEvaluation)(realm, ast, className, strictCode, env);

  // 4. ReturnIfAbrupt(value).

  // 5. If className is not undefined, then
  if (className) {
    // a. Let hasNameProperty be HasOwnProperty(value, "name").
    let hasNameProperty = (0, _index.HasOwnProperty)(realm, value, "name");

    // b. ReturnIfAbrupt(hasNameProperty).

    // c. If hasNameProperty is false, then
    if (!hasNameProperty) {
      // i. Perform SetFunctionName(value, className).
      _singletons.Functions.SetFunctionName(realm, value, className);
    }
  }

  // 6. Return NormalCompletion(value).
  return value;
};

var _index = require("../methods/index.js");

var _ClassDeclaration = require("./ClassDeclaration");

var _singletons = require("../singletons.js");
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