update

node_modules/@babel/plugin-transform-spread/lib/index.js

@@ -7,25 +7,31 @@ exports.default = void 0;
 
 var _helperPluginUtils = require("@babel/helper-plugin-utils");
 
+var _helperSkipTransparentExpressionWrappers = require("@babel/helper-skip-transparent-expression-wrappers");
+
 var _core = require("@babel/core");
 
 var _default = (0, _helperPluginUtils.declare)((api, options) => {
+  var _api$assumption, _options$allowArrayLi;
+
   api.assertVersion(7);
-  const {
-    loose,
-    allowArrayLike
-  } = options;
+  const iterableIsArray = (_api$assumption = api.assumption("iterableIsArray")) != null ? _api$assumption : options.loose;
+  const arrayLikeIsIterable = (_options$allowArrayLi = options.allowArrayLike) != null ? _options$allowArrayLi : api.assumption("arrayLikeIsIterable");
 
   function getSpreadLiteral(spread, scope) {
-    if (loose && !_core.types.isIdentifier(spread.argument, {
+    if (iterableIsArray && !_core.types.isIdentifier(spread.argument, {
       name: "arguments"
     })) {
       return spread.argument;
     } else {
-      return scope.toArray(spread.argument, true, allowArrayLike);
+      return scope.toArray(spread.argument, true, arrayLikeIsIterable);
     }
   }
 
+  function hasHole(spread) {
+    return spread.elements.some(el => el === null);
+  }
+
   function hasSpread(nodes) {
     for (let i = 0; i < nodes.length; i++) {
       if (_core.types.isSpreadElement(nodes[i])) {
@@ -42,14 +48,20 @@ var _default = (0, _helperPluginUtils.declare)((api, options) => {
     return [];
   }
 
-  function build(props, scope) {
+  function build(props, scope, file) {
     const nodes = [];
     let _props = [];
 
     for (const prop of props) {
       if (_core.types.isSpreadElement(prop)) {
         _props = push(_props, nodes);
-        nodes.push(getSpreadLiteral(prop, scope));
+        let spreadLiteral = getSpreadLiteral(prop, scope);
+
+        if (_core.types.isArrayExpression(spreadLiteral) && hasHole(spreadLiteral)) {
+          spreadLiteral = _core.types.callExpression(file.addHelper("arrayWithoutHoles"), [spreadLiteral]);
+        }
+
+        nodes.push(spreadLiteral);
       } else {
         _props.push(prop);
       }
@@ -69,7 +81,7 @@ var _default = (0, _helperPluginUtils.declare)((api, options) => {
         } = path;
         const elements = node.elements;
         if (!hasSpread(elements)) return;
-        const nodes = build(elements, scope);
+        const nodes = build(elements, scope, this.file);
         let first = nodes[0];
 
         if (nodes.length === 1 && first !== elements[0].argument) {
@@ -93,16 +105,22 @@ var _default = (0, _helperPluginUtils.declare)((api, options) => {
         } = path;
         const args = node.arguments;
         if (!hasSpread(args)) return;
-        const calleePath = path.get("callee");
-        if (calleePath.isSuper()) return;
+        const calleePath = (0, _helperSkipTransparentExpressionWrappers.skipTransparentExprWrappers)(path.get("callee"));
+
+        if (calleePath.isSuper()) {
+          throw path.buildCodeFrameError("It's not possible to compile spread arguments in `super()` without compiling classes.\n" + "Please add '@babel/plugin-transform-classes' to your Babel configuration.");
+        }
+
         let contextLiteral = scope.buildUndefinedNode();
         node.arguments = [];
         let nodes;
 
-        if (args.length === 1 && args[0].argument.name === "arguments") {
+        if (args.length === 1 && _core.types.isIdentifier(args[0].argument, {
+          name: "arguments"
+        })) {
           nodes = [args[0].argument];
         } else {
-          nodes = build(args, scope);
+          nodes = build(args, scope, this.file);
         }
 
         const first = nodes.shift();
@@ -113,9 +131,9 @@ var _default = (0, _helperPluginUtils.declare)((api, options) => {
           node.arguments.push(first);
         }
 
-        const callee = node.callee;
+        const callee = calleePath.node;
 
-        if (calleePath.isMemberExpression()) {
+        if (_core.types.isMemberExpression(callee)) {
           const temp = scope.maybeGenerateMemoised(callee.object);
 
           if (temp) {
@@ -124,12 +142,10 @@ var _default = (0, _helperPluginUtils.declare)((api, options) => {
           } 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"));
         }
 
+        node.callee = _core.types.memberExpression(node.callee, _core.types.identifier("apply"));
+
         if (_core.types.isSuper(contextLiteral)) {
           contextLiteral = _core.types.thisExpression();
         }
@@ -142,10 +158,10 @@ var _default = (0, _helperPluginUtils.declare)((api, options) => {
           node,
           scope
         } = path;
-        let args = node.arguments;
-        if (!hasSpread(args)) return;
-        const nodes = build(args, scope);
+        if (!hasSpread(node.arguments)) return;
+        const nodes = build(node.arguments, scope, this.file);
         const first = nodes.shift();
+        let args;
 
         if (nodes.length) {
           args = _core.types.callExpression(_core.types.memberExpression(first, _core.types.identifier("concat")), nodes);