Update with working working version (#12)

* Fix workflow

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node_modules/babel-plugin-minify-simplify/LICENSE

@@ -0,0 +1,22 @@
+Copyright (c) 2015-2016 Amjad Masad <amjad.masad@gmail.com>
+
+MIT License
+
+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-minify-simplify/README.md

@@ -0,0 +1,81 @@
+# babel-plugin-minify-simplify
+
+> Simplifies code for minification by reducing statements into expressions and making expressions uniform where possible.
+
+## Example
+
+### Reduce statement into expression
+
+**In**
+
+```js
+function foo() {
+  if (x) a();
+}
+function foo2() {
+  if (x) a();
+  else b();
+}
+```
+
+**Out**
+
+```js
+function foo() {
+  x && a();
+}
+function foo2() {
+  x ? a() : b();
+}
+```
+
+### Make expression as uniform as possible for better compressibility
+
+**In**
+
+```js
+undefined
+foo['bar']
+Number(foo)
+```
+
+**Out**
+
+```js
+void 0
+foo.bar
++foo
+```
+
+
+## Installation
+
+```sh
+npm install babel-plugin-minify-simplify --save-dev
+```
+
+## Usage
+
+### Via `.babelrc` (Recommended)
+
+**.babelrc**
+
+```json
+{
+  "plugins": ["minify-simplify"]
+}
+```
+
+### Via CLI
+
+```sh
+babel --plugins minify-simplify script.js
+```
+
+### Via Node API
+
+```javascript
+require("@babel/core").transform("code", {
+  plugins: ["minify-simplify"]
+});
+```

node_modules/babel-plugin-minify-simplify/lib/assignment-expression.js

@@ -0,0 +1,96 @@
+"use strict";
+
+const operators = new Set(["+", "-", "*", "%", "<<", ">>", ">>>", "&", "|", "^", "/", "**"]);
+const updateOperators = new Set(["+", "-"]);
+
+module.exports = t => {
+  function simplify(path) {
+    const rightExpr = path.get("right");
+    const leftExpr = path.get("left");
+
+    if (path.node.operator !== "=") {
+      return;
+    }
+
+    const canBeUpdateExpression = rightExpr.get("right").isNumericLiteral() && rightExpr.get("right").node.value === 1 && updateOperators.has(rightExpr.node.operator);
+
+    if (leftExpr.isMemberExpression()) {
+      const leftPropNames = getPropNames(leftExpr);
+      const rightPropNames = getPropNames(rightExpr.get("left"));
+
+      if (!leftPropNames || leftPropNames.indexOf(undefined) > -1 || !rightPropNames || rightPropNames.indexOf(undefined) > -1 || !operators.has(rightExpr.node.operator) || !areArraysEqual(leftPropNames, rightPropNames)) {
+        return;
+      }
+    } else {
+      if (!rightExpr.isBinaryExpression() || !operators.has(rightExpr.node.operator) || leftExpr.node.name !== rightExpr.node.left.name) {
+        return;
+      }
+    }
+
+    let newExpression; // special case x=x+1 --> ++x
+
+    if (canBeUpdateExpression) {
+      newExpression = t.updateExpression(rightExpr.node.operator + rightExpr.node.operator, t.clone(leftExpr.node), true
+      /* prefix */
+      );
+    } else {
+      newExpression = t.assignmentExpression(rightExpr.node.operator + "=", t.clone(leftExpr.node), t.clone(rightExpr.node.right));
+    }
+
+    path.replaceWith(newExpression);
+  }
+
+  return {
+    simplify
+  };
+};
+
+function areArraysEqual(arr1, arr2) {
+  return arr1.every((value, index) => {
+    return String(value) === String(arr2[index]);
+  });
+}
+
+function getPropNames(path) {
+  if (!path.isMemberExpression()) {
+    return;
+  }
+
+  let obj = path.get("object");
+  const prop = path.get("property");
+  const propNames = [getName(prop.node)];
+
+  while (obj.type === "MemberExpression") {
+    const node = obj.get("property").node;
+
+    if (node) {
+      propNames.push(getName(node));
+    }
+
+    obj = obj.get("object");
+  }
+
+  propNames.push(getName(obj.node));
+  return propNames;
+}
+
+function getName(node) {
+  if (node.type === "ThisExpression") {
+    return "this";
+  }
+
+  if (node.type === "Super") {
+    return "super";
+  }
+
+  if (node.type === "NullLiteral") {
+    return "null";
+  } // augment identifiers so that they don't match
+  // string/number literals
+  // but still match against each other
+
+
+  return node.name ? node.name + "_" : node.value
+  /* Literal */
+  ;
+}

node_modules/babel-plugin-minify-simplify/lib/conditional-expression.js

@@ -0,0 +1,39 @@
+"use strict";
+
+const h = require("./helpers");
+
+const PatternMatch = require("./pattern-match");
+
+module.exports = t => {
+  // small abstractions
+  const not = node => t.unaryExpression("!", node);
+
+  const notnot = node => not(not(node));
+
+  const or = (a, b) => t.logicalExpression("||", a, b);
+
+  const and = (a, b) => t.logicalExpression("&&", a, b);
+
+  function simplifyPatterns(path) {
+    const test = path.get("test");
+    const consequent = path.get("consequent");
+    const alternate = path.get("alternate");
+
+    const _h$typeSymbols = h.typeSymbols(t),
+          EX = _h$typeSymbols.Expression; // Convention:
+    // ===============
+    // for each pattern [test, consequent, alternate, handler(expr, cons, alt)]
+
+
+    const matcher = new PatternMatch([[EX, true, false, e => notnot(e)], [EX, false, true, e => not(e)], [EX, true, EX, (e, c, a) => or(notnot(e), a)], [EX, false, EX, (e, c, a) => and(not(e), a)], [EX, EX, true, (e, c) => or(not(e), c)], [EX, EX, false, (e, c) => and(notnot(e), c)]]);
+    const result = matcher.match([test, consequent, alternate], h.isPatternMatchesPath(t));
+
+    if (result.match) {
+      path.replaceWith(result.value(test.node, consequent.node, alternate.node));
+    }
+  }
+
+  return {
+    simplifyPatterns
+  };
+};

node_modules/babel-plugin-minify-simplify/lib/helpers.js

@@ -0,0 +1,56 @@
+"use strict";
+
+const VOID_0 = t => t.unaryExpression("void", t.numericLiteral(0), true);
+
+const evaluate = require("babel-helper-evaluate-path"); // Types as Symbols - for comparing types
+
+
+const types = {}; // This is a test key which is used to avoid Object.keys check
+// Object.keys() check is really expensive
+// https://gist.github.com/vigneshshanmugam/c766550ecd02292dcdfbf0bf013b9d3d
+
+const testKey = "Expression";
+
+const typeSymbols = t => {
+  // don't recompute
+  if (types[testKey] !== undefined) {
+    return types;
+  }
+
+  t.TYPES.forEach(type => {
+    types[type] = Symbol.for(type);
+  });
+  return types;
+};
+
+const isNodeOfType = (t, node, typeSymbol) => typeof typeSymbol !== "symbol" ? false : t["is" + Symbol.keyFor(typeSymbol)](node);
+
+const isPatternMatchesPath = t => function _isPatternMatchesPath(patternValue, inputPath) {
+  if (Array.isArray(patternValue)) {
+    for (let i = 0; i < patternValue.length; i++) {
+      if (_isPatternMatchesPath(patternValue[i], inputPath)) {
+        return true;
+      }
+    }
+
+    return false;
+  }
+
+  if (typeof patternValue === "function") {
+    return patternValue(inputPath);
+  }
+
+  if (isNodeOfType(t, inputPath.node, patternValue)) return true;
+  const evalResult = evaluate(inputPath);
+  if (!evalResult.confident || !inputPath.isPure()) return false;
+  return evalResult.value === patternValue;
+};
+
+module.exports = {
+  VOID_0,
+  // Types as Symbols
+  typeSymbols,
+  // This is required for resolving type aliases
+  isNodeOfType,
+  isPatternMatchesPath
+};

node_modules/babel-plugin-minify-simplify/lib/if-statement.js

@@ -0,0 +1,273 @@
+"use strict";
+
+const REPLACED = Symbol("replaced");
+
+const h = require("./helpers");
+
+module.exports = t => {
+  function mergeNestedIfs(path) {
+    const consequent = path.get("consequent");
+    const alternate = path.get("alternate"); // not nested if
+
+    if (!consequent.isIfStatement()) return; // there are no alternate nodes in both the if statements (nested)
+
+    if (alternate.node || consequent.get("alternate").node) return;
+    const test = path.get("test");
+    test.replaceWith(t.logicalExpression("&&", test.node, consequent.get("test").node));
+    consequent.replaceWith(t.clone(consequent.get("consequent").node));
+  } // No alternate, make into a guarded expression
+
+
+  function toGuardedExpression(path) {
+    const node = path.node;
+
+    if (node.consequent && !node.alternate && node.consequent.type === "ExpressionStatement") {
+      let op = "&&";
+
+      if (t.isUnaryExpression(node.test, {
+        operator: "!"
+      })) {
+        node.test = node.test.argument;
+        op = "||";
+      }
+
+      path.replaceWith(t.expressionStatement(t.logicalExpression(op, node.test, node.consequent.expression)));
+      return REPLACED;
+    }
+  } // both consequent and alternate are expressions, turn into ternary
+
+
+  function toTernary(path) {
+    const node = path.node;
+
+    if (t.isExpressionStatement(node.consequent) && t.isExpressionStatement(node.alternate)) {
+      path.replaceWith(t.conditionalExpression(node.test, node.consequent.expression, node.alternate.expression));
+      return REPLACED;
+    }
+  } // consequent and alternate are return -- conditional.
+
+
+  function toConditional(path) {
+    const node = path.node;
+
+    if (t.isReturnStatement(node.consequent) && t.isReturnStatement(node.alternate)) {
+      if (!node.consequent.argument && !node.alternate.argument) {
+        path.replaceWith(t.expressionStatement(node.test));
+        return REPLACED;
+      }
+
+      path.replaceWith(t.returnStatement(t.conditionalExpression(node.test, node.consequent.argument || h.VOID_0(t), node.alternate.argument || h.VOID_0(t))));
+      return REPLACED;
+    }
+  } // There is nothing after this If block. And one or both
+  // of the consequent and alternate are either expression statment
+  // or return statements.
+
+
+  function toReturn(path) {
+    const node = path.node;
+
+    if (!path.getSibling(path.key + 1).node && path.parentPath && path.parentPath.parentPath && path.parentPath.parentPath.isFunction()) {
+      // Only the consequent is a return, void the alternate.
+      if (t.isReturnStatement(node.consequent) && t.isExpressionStatement(node.alternate)) {
+        if (!node.consequent.argument) {
+          path.replaceWith(t.expressionStatement(t.logicalExpression("||", node.test, node.alternate.expression)));
+          return REPLACED;
+        }
+
+        path.replaceWith(t.returnStatement(t.conditionalExpression(node.test, node.consequent.argument || h.VOID_0(t), t.unaryExpression("void", node.alternate.expression, true))));
+        return REPLACED;
+      } // Only the alternate is a return, void the consequent.
+
+
+      if (t.isReturnStatement(node.alternate) && t.isExpressionStatement(node.consequent)) {
+        if (!node.alternate.argument) {
+          path.replaceWith(t.expressionStatement(t.logicalExpression("&&", node.test, node.consequent.expression)));
+          return REPLACED;
+        }
+
+        path.replaceWith(t.returnStatement(t.conditionalExpression(node.test, t.unaryExpression("void", node.consequent.expression, true), node.alternate.argument || h.VOID_0(t))));
+        return REPLACED;
+      }
+
+      if (t.isReturnStatement(node.consequent) && !node.alternate) {
+        if (!node.consequent.argument) {
+          path.replaceWith(t.expressionStatement(node.test));
+          return REPLACED;
+        } // This would only be worth it if the previous statement was an if
+        // because then we may merge to create a conditional.
+
+
+        if (path.getSibling(path.key - 1).isIfStatement()) {
+          path.replaceWith(t.returnStatement(t.conditionalExpression(node.test, node.consequent.argument || h.VOID_0(t), h.VOID_0(t))));
+          return REPLACED;
+        }
+      }
+
+      if (t.isReturnStatement(node.alternate) && !node.consequent) {
+        if (!node.alternate.argument) {
+          path.replaceWith(t.expressionStatement(node.test));
+          return REPLACED;
+        } // Same as above.
+
+
+        if (path.getSibling(path.key - 1).isIfStatement()) {
+          path.replaceWith(t.returnStatement(t.conditionalExpression(node.test, node.alternate.argument || h.VOID_0(t), h.VOID_0(t))));
+          return REPLACED;
+        }
+      }
+    }
+
+    let next = path.getSibling(path.key + 1); // If the next satatement(s) is an if statement and we can simplify that
+    // to potentailly be an expression (or a return) then this will make it
+    // easier merge.
+
+    if (next.isIfStatement()) {
+      next.pushContext(path.context);
+      next.visit();
+      next.popContext();
+      next = path.getSibling(path.key + 1);
+    } // Some other visitor might have deleted our node. OUR NODE ;_;
+
+
+    if (!path.node) {
+      return;
+    } // No alternate but the next statement is a return
+    // also turn into a return conditional
+
+
+    if (t.isReturnStatement(node.consequent) && !node.alternate && next.isReturnStatement()) {
+      const nextArg = next.node.argument || h.VOID_0(t);
+      next.remove();
+      path.replaceWith(t.returnStatement(t.conditionalExpression(node.test, node.consequent.argument || h.VOID_0(t), nextArg)));
+      return REPLACED;
+    } // Next is the last expression, turn into a return while void'ing the exprs
+
+
+    if (path.parentPath && path.parentPath.parentPath && path.parentPath.parentPath.isFunction() && !path.getSibling(path.key + 2).node && t.isReturnStatement(node.consequent) && !node.alternate && next.isExpressionStatement()) {
+      const nextExpr = next.node.expression;
+      next.remove();
+
+      if (node.consequent.argument) {
+        path.replaceWith(t.returnStatement(t.conditionalExpression(node.test, node.consequent.argument, t.unaryExpression("void", nextExpr, true))));
+        return REPLACED;
+      }
+
+      path.replaceWith(t.logicalExpression("||", node.test, nextExpr));
+      return REPLACED;
+    }
+  } // Remove else for if-return
+
+
+  function removeUnnecessaryElse(path) {
+    const node = path.node;
+    const consequent = path.get("consequent");
+    const alternate = path.get("alternate");
+
+    if (consequent.node && alternate.node && (consequent.isReturnStatement() || consequent.isBlockStatement() && t.isReturnStatement(consequent.node.body[consequent.node.body.length - 1])) && ( // don't hoist declarations
+    // TODO: validate declarations after fixing scope issues
+    alternate.isBlockStatement() ? !alternate.get("body").some(stmt => stmt.isVariableDeclaration({
+      kind: "let"
+    }) || stmt.isVariableDeclaration({
+      kind: "const"
+    })) : true)) {
+      path.insertAfter(alternate.isBlockStatement() ? alternate.node.body.map(el => t.clone(el)) : t.clone(alternate.node));
+      node.alternate = null;
+      return REPLACED;
+    }
+  }
+
+  function runTransforms(path) {
+    // ordered
+    const transforms = [toGuardedExpression, toTernary, toConditional, toReturn, removeUnnecessaryElse]; // run each of the replacement till we replace something
+    // which is identified by the Symbol(REPLACED) that each of the
+    // functions return when they replace something
+
+    for (var _i = 0; _i < transforms.length; _i++) {
+      const transform = transforms[_i];
+
+      if (transform(path) === REPLACED) {
+        break;
+      }
+    }
+  } // If the consequent is if and the altenrate is not then
+  // switch them out. That way we know we don't have to print
+  // a block.x
+
+
+  function switchConsequent(path) {
+    const node = path.node;
+
+    if (!node.alternate) {
+      return;
+    }
+
+    if (!t.isIfStatement(node.consequent)) {
+      return;
+    }
+
+    if (t.isIfStatement(node.alternate)) {
+      return;
+    }
+
+    node.test = t.unaryExpression("!", node.test, true);
+    var _ref = [node.consequent, node.alternate];
+    node.alternate = _ref[0];
+    node.consequent = _ref[1];
+  } // Make if statements with conditional returns in the body into
+  // an if statement that guards the rest of the block.
+
+
+  function conditionalReturnToGuards(path) {
+    const node = path.node;
+
+    if (!path.inList || !path.get("consequent").isBlockStatement() || node.alternate) {
+      return;
+    }
+
+    let ret;
+    let test;
+    const exprs = [];
+    const statements = node.consequent.body;
+
+    for (let i = 0, statement; statement = statements[i]; i++) {
+      if (t.isExpressionStatement(statement)) {
+        exprs.push(statement.expression);
+      } else if (t.isIfStatement(statement)) {
+        if (i < statements.length - 1) {
+          // This isn't the last statement. Bail.
+          return;
+        }
+
+        if (statement.alternate) {
+          return;
+        }
+
+        if (!t.isReturnStatement(statement.consequent)) {
+          return;
+        }
+
+        ret = statement.consequent;
+        test = statement.test;
+      } else {
+        return;
+      }
+    }
+
+    if (!test || !ret) {
+      return;
+    }
+
+    exprs.push(test);
+    const expr = exprs.length === 1 ? exprs[0] : t.sequenceExpression(exprs);
+    const replacement = t.logicalExpression("&&", node.test, expr);
+    path.replaceWith(t.ifStatement(replacement, ret, null));
+  }
+
+  return {
+    mergeNestedIfs,
+    simplify: runTransforms,
+    switchConsequent,
+    conditionalReturnToGuards
+  };
+};

node_modules/babel-plugin-minify-simplify/lib/logical-expression.js

@@ -0,0 +1,75 @@
+"use strict";
+
+const h = require("./helpers");
+
+const PatternMatch = require("./pattern-match");
+
+const evaluate = require("babel-helper-evaluate-path");
+
+module.exports = t => {
+  const OP_AND = input => input === "&&";
+
+  const OP_OR = input => input === "||";
+
+  function simplifyPatterns(path) {
+    // cache of evaluate(path)
+    const evaluateMemo = new Map();
+
+    const TRUTHY = input => {
+      // !NaN and !undefined are truthy
+      // separate check here as they are considered impure by babel
+      if (input.isUnaryExpression() && input.get("argument").isIdentifier()) {
+        if (input.node.argument.name === "NaN" || input.node.argument.name === "undefined") {
+          return true;
+        }
+      }
+
+      const evalResult = evaluate(input);
+      evaluateMemo.set(input, evalResult);
+      return evalResult.confident && input.isPure() && evalResult.value;
+    };
+
+    const FALSY = input => {
+      // NaN and undefined are falsy
+      // separate check here as they are considered impure by babel
+      if (input.isIdentifier()) {
+        if (input.node.name === "NaN" || input.node.name === "undefined") {
+          return true;
+        }
+      }
+
+      const evalResult = evaluate(input);
+      evaluateMemo.set(input, evalResult);
+      return evalResult.confident && input.isPure() && !evalResult.value;
+    };
+
+    const _h$typeSymbols = h.typeSymbols(t),
+          EX = _h$typeSymbols.Expression; // Convention:
+    // [left, operator, right, handler(leftNode, rightNode)]
+
+
+    const matcher = new PatternMatch([[TRUTHY, OP_AND, EX, (l, r) => r], [FALSY, OP_AND, EX, l => l], [TRUTHY, OP_OR, EX, l => l], [FALSY, OP_OR, EX, (l, r) => r]]);
+    const left = path.get("left");
+    const right = path.get("right");
+    const operator = path.node.operator;
+    const result = matcher.match([left, operator, right], h.isPatternMatchesPath(t));
+
+    if (result.match) {
+      // here we are sure that left.evaluate is always confident becuase
+      // it satisfied one of TRUTHY/FALSY paths
+      let value;
+
+      if (evaluateMemo.has(left)) {
+        value = evaluateMemo.get(left).value;
+      } else {
+        value = evaluate(left).value;
+      }
+
+      path.replaceWith(result.value(t.valueToNode(value), right.node));
+    }
+  }
+
+  return {
+    simplifyPatterns
+  };
+};

node_modules/babel-plugin-minify-simplify/lib/pattern-match.js

@@ -0,0 +1,156 @@
+"use strict";
+
+function _toArray(arr) { return _arrayWithHoles(arr) || _iterableToArray(arr) || _nonIterableRest(); }
+
+function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }
+
+function _iterableToArray(iter) { if (Symbol.iterator in Object(iter) || Object.prototype.toString.call(iter) === "[object Arguments]") return Array.from(iter); }
+
+function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }
+
+const LEAF_NODE = Symbol("LEAF_NODE");
+module.exports = class PatternMatch {
+  constructor(patterns) {
+    this.decisionTree = this.makeDecisionTree(patterns);
+  }
+
+  handle(input, isMatch) {
+    const result = this.match(input, isMatch);
+
+    if (!result.match) {
+      throw new Error("No Match Found for " + input.toString());
+    }
+
+    if (typeof result.value !== "function") {
+      throw new Error("Expecting a function. Instead got - " + result.value.toString());
+    }
+
+    result.value.call(null, input, result.keys);
+  }
+
+  match(input, isMatch = (a, b) => a === b) {
+    let current = this.decisionTree;
+    const result = {
+      match: false,
+      value: void 0,
+      keys: []
+    }; // to handle falsy keys
+
+    const NO_MATCH = Symbol("NO_MATCH");
+
+    for (let i = 0; i < input.length; i++) {
+      let matchedKey = NO_MATCH; // because map doesn't support custom key equal function
+
+      var _iteratorNormalCompletion = true;
+      var _didIteratorError = false;
+      var _iteratorError = undefined;
+
+      try {
+        for (var _iterator = current.keys()[Symbol.iterator](), _step; !(_iteratorNormalCompletion = (_step = _iterator.next()).done); _iteratorNormalCompletion = true) {
+          const key = _step.value;
+
+          if (isMatch(key, input[i])) {
+            matchedKey = key;
+            result.keys.push(matchedKey);
+            break;
+          }
+        }
+      } catch (err) {
+        _didIteratorError = true;
+        _iteratorError = err;
+      } finally {
+        try {
+          if (!_iteratorNormalCompletion && _iterator.return != null) {
+            _iterator.return();
+          }
+        } finally {
+          if (_didIteratorError) {
+            throw _iteratorError;
+          }
+        }
+      }
+
+      if (matchedKey !== NO_MATCH) {
+        current = current.get(matchedKey);
+
+        if (i === input.length - 1) {
+          if (current.has(LEAF_NODE)) {
+            result.match = true;
+            result.value = current.get(LEAF_NODE);
+          }
+
+          break;
+        }
+      } else {
+        break;
+      }
+    }
+
+    return result;
+  }
+
+  makeDecisionTree(patterns) {
+    // order of keys in a Map is the order of insertion
+    const root = new Map();
+    var _iteratorNormalCompletion2 = true;
+    var _didIteratorError2 = false;
+    var _iteratorError2 = undefined;
+
+    try {
+      for (var _iterator2 = patterns[Symbol.iterator](), _step2; !(_iteratorNormalCompletion2 = (_step2 = _iterator2.next()).done); _iteratorNormalCompletion2 = true) {
+        const pattern = _step2.value;
+        make(root, pattern);
+      }
+    } catch (err) {
+      _didIteratorError2 = true;
+      _iteratorError2 = err;
+    } finally {
+      try {
+        if (!_iteratorNormalCompletion2 && _iterator2.return != null) {
+          _iterator2.return();
+        }
+      } finally {
+        if (_didIteratorError2) {
+          throw _iteratorError2;
+        }
+      }
+    }
+
+    return root;
+
+    function make(parent, pattern) {
+      if (pattern.length < 2) {
+        throw new Error("at least 2 elements required in a pattern");
+      }
+
+      if (pattern.length === 2) {
+        if (parent.has(pattern[0])) {
+          const pattern0 = parent.get(pattern[0]);
+
+          if (!pattern0.has(LEAF_NODE)) {
+            pattern0.set(LEAF_NODE, pattern[1]);
+          } // here we don't handle duplicates
+          // this pattern would have already been matched
+
+        } else {
+          parent.set(pattern[0], new Map([[LEAF_NODE, pattern[1]]]));
+        }
+
+        return parent;
+      }
+
+      const _pattern = _toArray(pattern),
+            current = _pattern[0],
+            rest = _pattern.slice(1);
+
+      if (parent.has(current)) {
+        make(parent.get(current), rest);
+      } else {
+        parent.set(current, make(new Map(), rest));
+      }
+
+      return parent;
+    }
+  }
+
+};

node_modules/babel-plugin-minify-simplify/package.json

@@ -0,0 +1,57 @@
+{
+  "_args": [
+    [
+      "babel-plugin-minify-simplify@0.5.1",
+      "/home/runner/work/add-and-commit/add-and-commit"
+    ]
+  ],
+  "_development": true,
+  "_from": "babel-plugin-minify-simplify@0.5.1",
+  "_id": "babel-plugin-minify-simplify@0.5.1",
+  "_inBundle": false,
+  "_integrity": "sha512-OSYDSnoCxP2cYDMk9gxNAed6uJDiDz65zgL6h8d3tm8qXIagWGMLWhqysT6DY3Vs7Fgq7YUDcjOomhVUb+xX6A==",
+  "_location": "/babel-plugin-minify-simplify",
+  "_phantomChildren": {},
+  "_requested": {
+    "type": "version",
+    "registry": true,
+    "raw": "babel-plugin-minify-simplify@0.5.1",
+    "name": "babel-plugin-minify-simplify",
+    "escapedName": "babel-plugin-minify-simplify",
+    "rawSpec": "0.5.1",
+    "saveSpec": null,
+    "fetchSpec": "0.5.1"
+  },
+  "_requiredBy": [
+    "/babel-preset-minify"
+  ],
+  "_resolved": "https://registry.npmjs.org/babel-plugin-minify-simplify/-/babel-plugin-minify-simplify-0.5.1.tgz",
+  "_spec": "0.5.1",
+  "_where": "/home/runner/work/add-and-commit/add-and-commit",
+  "author": {
+    "name": "amasad"
+  },
+  "bugs": {
+    "url": "https://github.com/babel/minify/issues"
+  },
+  "dependencies": {
+    "babel-helper-evaluate-path": "^0.5.0",
+    "babel-helper-flip-expressions": "^0.4.3",
+    "babel-helper-is-nodes-equiv": "^0.0.1",
+    "babel-helper-to-multiple-sequence-expressions": "^0.5.0"
+  },
+  "description": "> Simplifies code for minification by reducing statements into expressions and making expressions uniform where possible.",
+  "gitHead": "e1d0c52f5b501f5849741be6db56f968094854eb",
+  "homepage": "https://github.com/babel/minify#readme",
+  "keywords": [
+    "babel-plugin"
+  ],
+  "license": "MIT",
+  "main": "lib/index.js",
+  "name": "babel-plugin-minify-simplify",
+  "repository": {
+    "type": "git",
+    "url": "https://github.com/babel/minify/tree/master/packages/babel-plugin-minify-simplify"
+  },
+  "version": "0.5.1"
+}