Improve code quality and write tests

node_modules/@babel/plugin-transform-for-of/LICENSE

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+MIT License
+
+Copyright (c) 2014-present Sebastian McKenzie and other contributors
+
+Permission is hereby granted, free of charge, to any person obtaining
+a copy of this software and associated documentation files (the
+"Software"), to deal in the Software without restriction, including
+without limitation the rights to use, copy, modify, merge, publish,
+distribute, sublicense, and/or sell copies of the Software, and to
+permit persons to whom the Software is furnished to do so, subject to
+the following conditions:
+
+The above copyright notice and this permission notice shall be
+included in all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
+LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
+OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
+WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

node_modules/@babel/plugin-transform-for-of/README.md

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+# @babel/plugin-transform-for-of
+
+> Compile ES2015 for...of to ES5
+
+See our website [@babel/plugin-transform-for-of](https://babeljs.io/docs/en/next/babel-plugin-transform-for-of.html) for more information.
+
+## Install
+
+Using npm:
+
+```sh
+npm install --save-dev @babel/plugin-transform-for-of
+```
+
+or using yarn:
+
+```sh
+yarn add @babel/plugin-transform-for-of --dev
+```

node_modules/@babel/plugin-transform-for-of/lib/index.js

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+"use strict";
+
+Object.defineProperty(exports, "__esModule", {
+  value: true
+});
+exports.default = void 0;
+
+function _helperPluginUtils() {
+  const data = require("@babel/helper-plugin-utils");
+
+  _helperPluginUtils = function () {
+    return data;
+  };
+
+  return data;
+}
+
+function _core() {
+  const data = require("@babel/core");
+
+  _core = function () {
+    return data;
+  };
+
+  return data;
+}
+
+var _default = (0, _helperPluginUtils().declare)((api, options) => {
+  api.assertVersion(7);
+  const {
+    loose,
+    assumeArray
+  } = options;
+
+  if (loose === true && assumeArray === true) {
+    throw new Error(`The loose and assumeArray options cannot be used together in @babel/plugin-transform-for-of`);
+  }
+
+  if (assumeArray) {
+    return {
+      name: "transform-for-of",
+      visitor: {
+        ForOfStatement(path) {
+          const {
+            scope
+          } = path;
+          const {
+            left,
+            right,
+            body
+          } = path.node;
+          const i = scope.generateUidIdentifier("i");
+          let array = scope.maybeGenerateMemoised(right, true);
+          const inits = [_core().types.variableDeclarator(i, _core().types.numericLiteral(0))];
+
+          if (array) {
+            inits.push(_core().types.variableDeclarator(array, right));
+          } else {
+            array = right;
+          }
+
+          const item = _core().types.memberExpression(_core().types.cloneNode(array), _core().types.cloneNode(i), true);
+
+          let assignment;
+
+          if (_core().types.isVariableDeclaration(left)) {
+            assignment = left;
+            assignment.declarations[0].init = item;
+          } else {
+            assignment = _core().types.expressionStatement(_core().types.assignmentExpression("=", left, item));
+          }
+
+          const block = _core().types.toBlock(body);
+
+          block.body.unshift(assignment);
+          path.replaceWith(_core().types.forStatement(_core().types.variableDeclaration("let", inits), _core().types.binaryExpression("<", _core().types.cloneNode(i), _core().types.memberExpression(_core().types.cloneNode(array), _core().types.identifier("length"))), _core().types.updateExpression("++", _core().types.cloneNode(i)), block));
+        }
+
+      }
+    };
+  }
+
+  const pushComputedProps = loose ? pushComputedPropsLoose : pushComputedPropsSpec;
+  const buildForOfArray = (0, _core().template)(`
+    for (var KEY = 0, NAME = ARR; KEY < NAME.length; KEY++) BODY;
+  `);
+  const buildForOfLoose = (0, _core().template)(`
+    for (var LOOP_OBJECT = OBJECT,
+             IS_ARRAY = Array.isArray(LOOP_OBJECT),
+             INDEX = 0,
+             LOOP_OBJECT = IS_ARRAY ? LOOP_OBJECT : LOOP_OBJECT[Symbol.iterator]();;) {
+      INTERMEDIATE;
+      if (IS_ARRAY) {
+        if (INDEX >= LOOP_OBJECT.length) break;
+        ID = LOOP_OBJECT[INDEX++];
+      } else {
+        INDEX = LOOP_OBJECT.next();
+        if (INDEX.done) break;
+        ID = INDEX.value;
+      }
+    }
+  `);
+  const buildForOf = (0, _core().template)(`
+    var ITERATOR_COMPLETION = true;
+    var ITERATOR_HAD_ERROR_KEY = false;
+    var ITERATOR_ERROR_KEY = undefined;
+    try {
+      for (
+        var ITERATOR_KEY = OBJECT[Symbol.iterator](), STEP_KEY;
+        !(ITERATOR_COMPLETION = (STEP_KEY = ITERATOR_KEY.next()).done);
+        ITERATOR_COMPLETION = true
+      ) {}
+    } catch (err) {
+      ITERATOR_HAD_ERROR_KEY = true;
+      ITERATOR_ERROR_KEY = err;
+    } finally {
+      try {
+        if (!ITERATOR_COMPLETION && ITERATOR_KEY.return != null) {
+          ITERATOR_KEY.return();
+        }
+      } finally {
+        if (ITERATOR_HAD_ERROR_KEY) {
+          throw ITERATOR_ERROR_KEY;
+        }
+      }
+    }
+  `);
+
+  function _ForOfStatementArray(path) {
+    const {
+      node,
+      scope
+    } = path;
+    const right = scope.generateUidIdentifierBasedOnNode(node.right, "arr");
+    const iterationKey = scope.generateUidIdentifier("i");
+    let loop = buildForOfArray({
+      BODY: node.body,
+      KEY: iterationKey,
+      NAME: right,
+      ARR: node.right
+    });
+
+    _core().types.inherits(loop, node);
+
+    _core().types.ensureBlock(loop);
+
+    const iterationValue = _core().types.memberExpression(_core().types.cloneNode(right), _core().types.cloneNode(iterationKey), true);
+
+    const left = node.left;
+
+    if (_core().types.isVariableDeclaration(left)) {
+      left.declarations[0].init = iterationValue;
+      loop.body.body.unshift(left);
+    } else {
+      loop.body.body.unshift(_core().types.expressionStatement(_core().types.assignmentExpression("=", left, iterationValue)));
+    }
+
+    if (path.parentPath.isLabeledStatement()) {
+      loop = _core().types.labeledStatement(path.parentPath.node.label, loop);
+    }
+
+    return [loop];
+  }
+
+  function replaceWithArray(path) {
+    if (path.parentPath.isLabeledStatement()) {
+      path.parentPath.replaceWithMultiple(_ForOfStatementArray(path));
+    } else {
+      path.replaceWithMultiple(_ForOfStatementArray(path));
+    }
+  }
+
+  return {
+    name: "transform-for-of",
+    visitor: {
+      ForOfStatement(path, state) {
+        const right = path.get("right");
+
+        if (right.isArrayExpression() || right.isGenericType("Array") || _core().types.isArrayTypeAnnotation(right.getTypeAnnotation())) {
+          replaceWithArray(path);
+          return;
+        }
+
+        const {
+          node
+        } = path;
+        const build = pushComputedProps(path, state);
+        const declar = build.declar;
+        const loop = build.loop;
+        const block = loop.body;
+        path.ensureBlock();
+
+        if (declar) {
+          block.body.push(declar);
+        }
+
+        block.body = block.body.concat(node.body.body);
+
+        _core().types.inherits(loop, node);
+
+        _core().types.inherits(loop.body, node.body);
+
+        if (build.replaceParent) {
+          path.parentPath.replaceWithMultiple(build.node);
+          path.remove();
+        } else {
+          path.replaceWithMultiple(build.node);
+        }
+      }
+
+    }
+  };
+
+  function pushComputedPropsLoose(path, file) {
+    const {
+      node,
+      scope,
+      parent
+    } = path;
+    const {
+      left
+    } = node;
+    let declar, id, intermediate;
+
+    if (_core().types.isIdentifier(left) || _core().types.isPattern(left) || _core().types.isMemberExpression(left)) {
+      id = left;
+      intermediate = null;
+    } else if (_core().types.isVariableDeclaration(left)) {
+      id = scope.generateUidIdentifier("ref");
+      declar = _core().types.variableDeclaration(left.kind, [_core().types.variableDeclarator(left.declarations[0].id, _core().types.identifier(id.name))]);
+      intermediate = _core().types.variableDeclaration("var", [_core().types.variableDeclarator(_core().types.identifier(id.name))]);
+    } else {
+      throw file.buildCodeFrameError(left, `Unknown node type ${left.type} in ForStatement`);
+    }
+
+    const iteratorKey = scope.generateUidIdentifier("iterator");
+    const isArrayKey = scope.generateUidIdentifier("isArray");
+    const loop = buildForOfLoose({
+      LOOP_OBJECT: iteratorKey,
+      IS_ARRAY: isArrayKey,
+      OBJECT: node.right,
+      INDEX: scope.generateUidIdentifier("i"),
+      ID: id,
+      INTERMEDIATE: intermediate
+    });
+
+    const isLabeledParent = _core().types.isLabeledStatement(parent);
+
+    let labeled;
+
+    if (isLabeledParent) {
+      labeled = _core().types.labeledStatement(parent.label, loop);
+    }
+
+    return {
+      replaceParent: isLabeledParent,
+      declar: declar,
+      node: labeled || loop,
+      loop: loop
+    };
+  }
+
+  function pushComputedPropsSpec(path, file) {
+    const {
+      node,
+      scope,
+      parent
+    } = path;
+    const left = node.left;
+    let declar;
+    const stepKey = scope.generateUid("step");
+
+    const stepValue = _core().types.memberExpression(_core().types.identifier(stepKey), _core().types.identifier("value"));
+
+    if (_core().types.isIdentifier(left) || _core().types.isPattern(left) || _core().types.isMemberExpression(left)) {
+      declar = _core().types.expressionStatement(_core().types.assignmentExpression("=", left, stepValue));
+    } else if (_core().types.isVariableDeclaration(left)) {
+      declar = _core().types.variableDeclaration(left.kind, [_core().types.variableDeclarator(left.declarations[0].id, stepValue)]);
+    } else {
+      throw file.buildCodeFrameError(left, `Unknown node type ${left.type} in ForStatement`);
+    }
+
+    const template = buildForOf({
+      ITERATOR_HAD_ERROR_KEY: scope.generateUidIdentifier("didIteratorError"),
+      ITERATOR_COMPLETION: scope.generateUidIdentifier("iteratorNormalCompletion"),
+      ITERATOR_ERROR_KEY: scope.generateUidIdentifier("iteratorError"),
+      ITERATOR_KEY: scope.generateUidIdentifier("iterator"),
+      STEP_KEY: _core().types.identifier(stepKey),
+      OBJECT: node.right
+    });
+
+    const isLabeledParent = _core().types.isLabeledStatement(parent);
+
+    const tryBody = template[3].block.body;
+    const loop = tryBody[0];
+
+    if (isLabeledParent) {
+      tryBody[0] = _core().types.labeledStatement(parent.label, loop);
+    }
+
+    return {
+      replaceParent: isLabeledParent,
+      declar: declar,
+      loop: loop,
+      node: template
+    };
+  }
+});
+
+exports.default = _default;

node_modules/@babel/plugin-transform-for-of/package.json

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+{
+  "_args": [
+    [
+      "@babel/plugin-transform-for-of@7.4.4",
+      "E:\\python\\setup-php"
+    ]
+  ],
+  "_from": "@babel/plugin-transform-for-of@7.4.4",
+  "_id": "@babel/plugin-transform-for-of@7.4.4",
+  "_inBundle": false,
+  "_integrity": "sha512-9T/5Dlr14Z9TIEXLXkt8T1DU7F24cbhwhMNUziN3hB1AXoZcdzPcTiKGRn/6iOymDqtTKWnr/BtRKN9JwbKtdQ==",
+  "_location": "/@babel/plugin-transform-for-of",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "@babel/plugin-transform-for-of@7.4.4",
+    "name": "@babel/plugin-transform-for-of",
+    "escapedName": "@babel%2fplugin-transform-for-of",
+    "scope": "@babel",
+    "rawSpec": "7.4.4",
+    "saveSpec": null,
+    "fetchSpec": "7.4.4"
+  },
+  "_requiredBy": [
+    "/@babel/preset-env"
+  ],
+  "_resolved": "https://registry.npmjs.org/@babel/plugin-transform-for-of/-/plugin-transform-for-of-7.4.4.tgz",
+  "_spec": "7.4.4",
+  "_where": "E:\\python\\setup-php",
+  "dependencies": {
+    "@babel/helper-plugin-utils": "^7.0.0"
+  },
+  "description": "Compile ES2015 for...of to ES5",
+  "devDependencies": {
+    "@babel/core": "^7.4.4",
+    "@babel/helper-plugin-test-runner": "^7.0.0"
+  },
+  "gitHead": "2c88694388831b1e5b88e4bbed6781eb2be1edba",
+  "keywords": [
+    "babel-plugin"
+  ],
+  "license": "MIT",
+  "main": "lib/index.js",
+  "name": "@babel/plugin-transform-for-of",
+  "peerDependencies": {
+    "@babel/core": "^7.0.0-0"
+  },
+  "publishConfig": {
+    "access": "public"
+  },
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/babel/babel/tree/master/packages/babel-plugin-transform-for-of"
+  },
+  "version": "7.4.4"
+}