@babel/core/lib/transformation/file/file.js

"use strict";

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

function helpers() {
  const data = _interopRequireWildcard(require("@babel/helpers"));

  helpers = function () {
    return data;
  };

  return data;
}

function _traverse() {
  const data = _interopRequireWildcard(require("@babel/traverse"));

  _traverse = function () {
    return data;
  };

  return data;
}

function _codeFrame() {
  const data = require("@babel/code-frame");

  _codeFrame = function () {
    return data;
  };

  return data;
}

function t() {
  const data = _interopRequireWildcard(require("@babel/types"));

  t = function () {
    return data;
  };

  return data;
}

function _helperModuleTransforms() {
  const data = require("@babel/helper-module-transforms");

  _helperModuleTransforms = function () {
    return data;
  };

  return data;
}

function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

const semver = require("semver");

const errorVisitor = {
  enter(path, state) {
    const loc = path.node.loc;

    if (loc) {
      state.loc = loc;
      path.stop();
    }
  }

};

class File {
  constructor(options, {
    code,
    ast,
    inputMap
  }) {
    this._map = new Map();
    this.opts = void 0;
    this.declarations = {};
    this.path = null;
    this.ast = {};
    this.scope = void 0;
    this.metadata = {};
    this.code = "";
    this.inputMap = null;
    this.hub = {
      file: this,
      getCode: () => this.code,
      getScope: () => this.scope,
      addHelper: this.addHelper.bind(this),
      buildError: this.buildCodeFrameError.bind(this)
    };
    this.opts = options;
    this.code = code;
    this.ast = ast;
    this.inputMap = inputMap;
    this.path = _traverse().NodePath.get({
      hub: this.hub,
      parentPath: null,
      parent: this.ast,
      container: this.ast,
      key: "program"
    }).setContext();
    this.scope = this.path.scope;
  }

  get shebang() {
    const {
      interpreter
    } = this.path.node;
    return interpreter ? interpreter.value : "";
  }

  set shebang(value) {
    if (value) {
      this.path.get("interpreter").replaceWith(t().interpreterDirective(value));
    } else {
      this.path.get("interpreter").remove();
    }
  }

  set(key, val) {
    if (key === "helpersNamespace") {
      throw new Error("Babel 7.0.0-beta.56 has dropped support for the 'helpersNamespace' utility." + "If you are using @babel/plugin-external-helpers you will need to use a newer " + "version than the one you currently have installed. " + "If you have your own implementation, you'll want to explore using 'helperGenerator' " + "alongside 'file.availableHelper()'.");
    }

    this._map.set(key, val);
  }

  get(key) {
    return this._map.get(key);
  }

  has(key) {
    return this._map.has(key);
  }

  getModuleName() {
    return (0, _helperModuleTransforms().getModuleName)(this.opts, this.opts);
  }

  addImport() {
    throw new Error("This API has been removed. If you're looking for this " + "functionality in Babel 7, you should import the " + "'@babel/helper-module-imports' module and use the functions exposed " + " from that module, such as 'addNamed' or 'addDefault'.");
  }

  availableHelper(name, versionRange) {
    let minVersion;

    try {
      minVersion = helpers().minVersion(name);
    } catch (err) {
      if (err.code !== "BABEL_HELPER_UNKNOWN") throw err;
      return false;
    }

    if (typeof versionRange !== "string") return true;
    if (semver.valid(versionRange)) versionRange = `^${versionRange}`;
    return !semver.intersects(`<${minVersion}`, versionRange) && !semver.intersects(`>=8.0.0`, versionRange);
  }

  addHelper(name) {
    const declar = this.declarations[name];
    if (declar) return t().cloneNode(declar);
    const generator = this.get("helperGenerator");

    if (generator) {
      const res = generator(name);
      if (res) return res;
    }

    helpers().ensure(name, File);
    const uid = this.declarations[name] = this.scope.generateUidIdentifier(name);
    const dependencies = {};

    for (const dep of helpers().getDependencies(name)) {
      dependencies[dep] = this.addHelper(dep);
    }

    const {
      nodes,
      globals
    } = helpers().get(name, dep => dependencies[dep], uid, Object.keys(this.scope.getAllBindings()));
    globals.forEach(name => {
      if (this.path.scope.hasBinding(name, true)) {
        this.path.scope.rename(name);
      }
    });
    nodes.forEach(node => {
      node._compact = true;
    });
    this.path.unshiftContainer("body", nodes);
    this.path.get("body").forEach(path => {
      if (nodes.indexOf(path.node) === -1) return;
      if (path.isVariableDeclaration()) this.scope.registerDeclaration(path);
    });
    return uid;
  }

  addTemplateObject() {
    throw new Error("This function has been moved into the template literal transform itself.");
  }

  buildCodeFrameError(node, msg, _Error = SyntaxError) {
    let loc = node && (node.loc || node._loc);

    if (!loc && node) {
      const state = {
        loc: null
      };
      (0, _traverse().default)(node, errorVisitor, this.scope, state);
      loc = state.loc;
      let txt = "This is an error on an internal node. Probably an internal error.";
      if (loc) txt += " Location has been estimated.";
      msg += ` (${txt})`;
    }

    if (loc) {
      const {
        highlightCode = true
      } = this.opts;
      msg += "\n" + (0, _codeFrame().codeFrameColumns)(this.code, {
        start: {
          line: loc.start.line,
          column: loc.start.column + 1
        },
        end: loc.end && loc.start.line === loc.end.line ? {
          line: loc.end.line,
          column: loc.end.column + 1
        } : undefined
      }, {
        highlightCode
      });
    }

    return new _Error(msg);
  }

}

exports.default = File;