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node_modules/@babel/helper-wrap-function/lib/index.js 3.8 KB
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  "use strict";
  
  Object.defineProperty(exports, "__esModule", {
    value: true
  });
  exports.default = wrapFunction;
  
  function _helperFunctionName() {
    const data = _interopRequireDefault(require("@babel/helper-function-name"));
  
    _helperFunctionName = function () {
      return data;
    };
  
    return data;
  }
  
  function _template() {
    const data = _interopRequireDefault(require("@babel/template"));
  
    _template = function () {
      return data;
    };
  
    return data;
  }
  
  function t() {
    const data = _interopRequireWildcard(require("@babel/types"));
  
    t = function () {
      return data;
    };
  
    return data;
  }
  
  function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } else { var newObj = {}; if (obj != null) { for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = Object.defineProperty && Object.getOwnPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : {}; if (desc.get || desc.set) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } } newObj.default = obj; return newObj; } }
  
  function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }
  
  const buildAnonymousExpressionWrapper = _template().default.expression(`
    (function () {
      var REF = FUNCTION;
      return function NAME(PARAMS) {
        return REF.apply(this, arguments);
      };
    })()
  `);
  
  const buildNamedExpressionWrapper = _template().default.expression(`
    (function () {
      var REF = FUNCTION;
      function NAME(PARAMS) {
        return REF.apply(this, arguments);
      }
      return NAME;
    })()
  `);
  
  const buildDeclarationWrapper = (0, _template().default)(`
    function NAME(PARAMS) { return REF.apply(this, arguments); }
    function REF() {
      REF = FUNCTION;
      return REF.apply(this, arguments);
    }
  `);
  
  function classOrObjectMethod(path, callId) {
    const node = path.node;
    const body = node.body;
    const container = t().functionExpression(null, [], t().blockStatement(body.body), true);
    body.body = [t().returnStatement(t().callExpression(t().callExpression(callId, [container]), []))];
    node.async = false;
    node.generator = false;
    path.get("body.body.0.argument.callee.arguments.0").unwrapFunctionEnvironment();
  }
  
  function plainFunction(path, callId) {
    const node = path.node;
    const isDeclaration = path.isFunctionDeclaration();
    const functionId = node.id;
    const wrapper = isDeclaration ? buildDeclarationWrapper : functionId ? buildNamedExpressionWrapper : buildAnonymousExpressionWrapper;
  
    if (path.isArrowFunctionExpression()) {
      path.arrowFunctionToExpression();
    }
  
    node.id = null;
  
    if (isDeclaration) {
      node.type = "FunctionExpression";
    }
  
    const built = t().callExpression(callId, [node]);
    const container = wrapper({
      NAME: functionId || null,
      REF: path.scope.generateUidIdentifier(functionId ? functionId.name : "ref"),
      FUNCTION: built,
      PARAMS: node.params.reduce((acc, param) => {
        acc.done = acc.done || t().isAssignmentPattern(param) || t().isRestElement(param);
  
        if (!acc.done) {
          acc.params.push(path.scope.generateUidIdentifier("x"));
        }
  
        return acc;
      }, {
        params: [],
        done: false
      }).params
    });
  
    if (isDeclaration) {
      path.replaceWith(container[0]);
      path.insertAfter(container[1]);
    } else {
      const retFunction = container.callee.body.body[1].argument;
  
      if (!functionId) {
        (0, _helperFunctionName().default)({
          node: retFunction,
          parent: path.parent,
          scope: path.scope
        });
      }
  
      if (!retFunction || retFunction.id || node.params.length) {
        path.replaceWith(container);
      } else {
        path.replaceWith(built);
      }
    }
  }
  
  function wrapFunction(path, callId) {
    if (path.isClassMethod() || path.isObjectMethod()) {
      classOrObjectMethod(path, callId);
    } else {
      plainFunction(path, callId);
    }
  }