Improve code quality and write tests

node_modules/@babel/plugin-transform-spread/LICENSE

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+MIT License
+
+Copyright (c) 2014-2018 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-spread/README.md

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

node_modules/@babel/plugin-transform-spread/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
+  } = options;
+
+  function getSpreadLiteral(spread, scope) {
+    if (loose && !_core().types.isIdentifier(spread.argument, {
+      name: "arguments"
+    })) {
+      return spread.argument;
+    } else {
+      return scope.toArray(spread.argument, true);
+    }
+  }
+
+  function hasSpread(nodes) {
+    for (let i = 0; i < nodes.length; i++) {
+      if (_core().types.isSpreadElement(nodes[i])) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  function push(_props, nodes) {
+    if (!_props.length) return _props;
+    nodes.push(_core().types.arrayExpression(_props));
+    return [];
+  }
+
+  function build(props, scope) {
+    const nodes = [];
+    let _props = [];
+
+    for (const prop of props) {
+      if (_core().types.isSpreadElement(prop)) {
+        _props = push(_props, nodes);
+        nodes.push(getSpreadLiteral(prop, scope));
+      } else {
+        _props.push(prop);
+      }
+    }
+
+    push(_props, nodes);
+    return nodes;
+  }
+
+  return {
+    name: "transform-spread",
+    visitor: {
+      ArrayExpression(path) {
+        const {
+          node,
+          scope
+        } = path;
+        const elements = node.elements;
+        if (!hasSpread(elements)) return;
+        const nodes = build(elements, scope);
+        let first = nodes[0];
+
+        if (nodes.length === 1 && first !== elements[0].argument) {
+          path.replaceWith(first);
+          return;
+        }
+
+        if (!_core().types.isArrayExpression(first)) {
+          first = _core().types.arrayExpression([]);
+        } else {
+          nodes.shift();
+        }
+
+        path.replaceWith(_core().types.callExpression(_core().types.memberExpression(first, _core().types.identifier("concat")), nodes));
+      },
+
+      CallExpression(path) {
+        const {
+          node,
+          scope
+        } = path;
+        const args = node.arguments;
+        if (!hasSpread(args)) return;
+        const calleePath = path.get("callee");
+        if (calleePath.isSuper()) return;
+        let contextLiteral = scope.buildUndefinedNode();
+        node.arguments = [];
+        let nodes;
+
+        if (args.length === 1 && args[0].argument.name === "arguments") {
+          nodes = [args[0].argument];
+        } else {
+          nodes = build(args, scope);
+        }
+
+        const first = nodes.shift();
+
+        if (nodes.length) {
+          node.arguments.push(_core().types.callExpression(_core().types.memberExpression(first, _core().types.identifier("concat")), nodes));
+        } else {
+          node.arguments.push(first);
+        }
+
+        const callee = node.callee;
+
+        if (calleePath.isMemberExpression()) {
+          const temp = scope.maybeGenerateMemoised(callee.object);
+
+          if (temp) {
+            callee.object = _core().types.assignmentExpression("=", temp, callee.object);
+            contextLiteral = temp;
+          } else {
+            contextLiteral = _core().types.cloneNode(callee.object);
+          }
+
+          _core().types.appendToMemberExpression(callee, _core().types.identifier("apply"));
+        } else {
+          node.callee = _core().types.memberExpression(node.callee, _core().types.identifier("apply"));
+        }
+
+        if (_core().types.isSuper(contextLiteral)) {
+          contextLiteral = _core().types.thisExpression();
+        }
+
+        node.arguments.unshift(_core().types.cloneNode(contextLiteral));
+      },
+
+      NewExpression(path) {
+        const {
+          node,
+          scope
+        } = path;
+        let args = node.arguments;
+        if (!hasSpread(args)) return;
+        const nodes = build(args, scope);
+        const first = nodes.shift();
+
+        if (nodes.length) {
+          args = _core().types.callExpression(_core().types.memberExpression(first, _core().types.identifier("concat")), nodes);
+        } else {
+          args = first;
+        }
+
+        path.replaceWith(_core().types.callExpression(path.hub.addHelper("construct"), [node.callee, args]));
+      }
+
+    }
+  };
+});
+
+exports.default = _default;

node_modules/@babel/plugin-transform-spread/package.json

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+{
+  "_args": [
+    [
+      "@babel/plugin-transform-spread@7.2.2",
+      "E:\\python\\setup-php"
+    ]
+  ],
+  "_from": "@babel/plugin-transform-spread@7.2.2",
+  "_id": "@babel/plugin-transform-spread@7.2.2",
+  "_inBundle": false,
+  "_integrity": "sha512-KWfky/58vubwtS0hLqEnrWJjsMGaOeSBn90Ezn5Jeg9Z8KKHmELbP1yGylMlm5N6TPKeY9A2+UaSYLdxahg01w==",
+  "_location": "/@babel/plugin-transform-spread",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "@babel/plugin-transform-spread@7.2.2",
+    "name": "@babel/plugin-transform-spread",
+    "escapedName": "@babel%2fplugin-transform-spread",
+    "scope": "@babel",
+    "rawSpec": "7.2.2",
+    "saveSpec": null,
+    "fetchSpec": "7.2.2"
+  },
+  "_requiredBy": [
+    "/@babel/preset-env"
+  ],
+  "_resolved": "https://registry.npmjs.org/@babel/plugin-transform-spread/-/plugin-transform-spread-7.2.2.tgz",
+  "_spec": "7.2.2",
+  "_where": "E:\\python\\setup-php",
+  "dependencies": {
+    "@babel/helper-plugin-utils": "^7.0.0"
+  },
+  "description": "Compile ES2015 spread to ES5",
+  "devDependencies": {
+    "@babel/core": "^7.2.2",
+    "@babel/helper-plugin-test-runner": "^7.0.0"
+  },
+  "keywords": [
+    "babel-plugin"
+  ],
+  "license": "MIT",
+  "main": "lib/index.js",
+  "name": "@babel/plugin-transform-spread",
+  "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-spread"
+  },
+  "version": "7.2.2"
+}