babel-core - npm Package Compare versions

Comparing version 5.1.2 to 5.1.3

CHANGELOG.md

@@ -16,2 +16,11 @@ # Changelog
 
+## 5.1.3
+
+ * **Internal**
+  * Switch entirely to vanilla regenerator.
+  * Clean up and make the parsing of decorators stateless.
+ * **Bug Fix**
+  * Don't do TCO on generators and async functions.
+  * Add missing `core-js` runtime definitions.
+
 ## 5.1.2
@@ -18,0 +27,0 @@

lib/acorn/src/expression.js

@@ -522,2 +522,3 @@ // A recursive descent parser operates by defining functions for all
   node.properties = [];
+  var decorators = [];
   this.next();
@@ -529,7 +530,5 @@ while (!this.eat(tt.braceR)) {
     } else first = false;
-
     while (this.type === tt.at) {
-      this.decorators.push(this.parseDecorator());
+      decorators.push(this.parseDecorator());
     }
-
     var prop = this.startNode(),
@@ -539,6 +538,9 @@ isGenerator = false,
         start = undefined;
+    if (decorators.length) {
+      prop.decorators = decorators;
+      decorators = [];
+    }
     if (this.options.features["es7.objectRestSpread"] && this.type === tt.ellipsis) {
       prop = this.parseSpread();
       prop.type = "SpreadProperty";
-      this.takeDecorators(prop);
       node.properties.push(prop);
@@ -567,6 +569,5 @@ continue;
     this.checkPropClash(prop, propHash);
-    this.takeDecorators(prop);
     node.properties.push(this.finishNode(prop, "Property"));
   }
-  if (this.decorators.length) {
+  if (decorators.length) {
     this.raise(this.start, "You have trailing decorators with no property");
@@ -573,0 +574,0 @@ }

lib/acorn/src/statement.js

@@ -484,10 +484,14 @@ "use strict";
   this.expect(tt.braceL);
+  var decorators = [];
   while (!this.eat(tt.braceR)) {
     if (this.eat(tt.semi)) continue;
     if (this.type === tt.at) {
-      this.decorators.push(this.parseDecorator());
+      decorators.push(this.parseDecorator());
       continue;
     }
     var method = this.startNode();
-    this.takeDecorators(method);
+    if (decorators.length) {
+      method.decorators = decorators;
+      decorators = [];
+    }
     var isGenerator = this.eat(tt.star),
@@ -530,3 +534,3 @@ isAsync = false;
   }
-  if (this.decorators.length) {
+  if (decorators.length) {
     this.raise(this.start, "You have trailing decorators with no method");
@@ -533,0 +537,0 @@ }

lib/babel/transformation/transformers/es6/tail-call.js

@@ -22,2 +22,3 @@ "use strict";
 exports.Function = function (node, parent, scope, file) {
+  if (node.generator || node.async) return;
   var tailCall = new TailCallTransformer(this, scope, file);
@@ -24,0 +25,0 @@ tailCall.run();

lib/babel/transformation/transformers/other/runtime/definitions.json

@@ -84,2 +84,3 @@ {
       "fround": "math/fround",
+      "hypot": "math/hypot",
       "pot": "math/pot",
@@ -114,4 +115,28 @@ "imul": "math/imul",
       "unscopables": "symbol/unscopables"
+    },
+    "String": {
+      "at": "string/at",
+      "codePointAt": "string/code-point-at",
+      "endsWith": "string/ends-with",
+      "escapeHTML": "string/escape-html",
+      "fromCodePoint": "string/from-code-point",
+      "includes": "string/includes",
+      "raw": "string/raw",
+      "repeat": "string/repeat",
+      "startsWith": "string/starts-with",
+      "unescapeHTML": "string/unescape-html"
+    },
+    "Number": {
+      "epsilon": "number/epsilon",
+      "isFinite": "number/is-finite",
+      "isInteger": "number/is-integer",
+      "isNaN": "number/is-nan",
+      "isSafeInteger": "number/is-safe-integer",
+      "MAX_SAFE_INTEGER": "number/max-safe-integer",
+      "MIN_SAFE_INTEGER": "number/min-safe-integer",
+      "parseFloat": "number/parse-float",
+      "parseInt": "number/parse-int",
+      "random": "number/random"
     }
   }
 }

lib/babel/transformation/transformers/other/runtime/index.js

@@ -9,2 +9,4 @@ "use strict";
 
+var traverse = _interopRequire(require("../../../../traversal"));
+
 var util = _interopRequireWildcard(require("../../../../util"));
@@ -22,10 +24,48 @@
 
-var astVisitor = {
-  enter: function enter(node, parent, scope, file) {
-    var prop;
+var astVisitor = traverse.explode({
+  Identifier: function Identifier(node, parent, scope, file) {
+    if (!this.isReferenced()) return;
+    if (t.isMemberExpression(parent)) return;
+    if (!has(definitions.builtins, node.name)) return;
+    if (scope.getBindingIdentifier(node.name)) return;
 
-    if (this.isMemberExpression() && this.isReferenced()) {
+    // Symbol() -> _core.Symbol(); new Promise -> new _core.Promise
+    var modulePath = definitions.builtins[node.name];
+    return file.addImport("" + RUNTIME_MODULE_NAME + "/core-js/" + modulePath, node.name, true);
+  },
+
+  CallExpression: function CallExpression(node, parent, scope, file) {
+    // arr[Symbol.iterator]() -> _core.$for.getIterator(arr)
+
+    var callee = node.callee;
+    if (node.arguments.length) return;
+
+    if (!t.isMemberExpression(callee)) return;
+    if (!callee.computed) return;
+
+    var prop = callee.property;
+    if (!isSymbolIterator(prop)) return;
+
+    return t.callExpression(file.addImport("" + RUNTIME_MODULE_NAME + "/core-js/get-iterator", "getIterator", true), [callee.object]);
+  },
+
+  BinaryExpression: function BinaryExpression(node, parent, scope, file) {
+    // Symbol.iterator in arr -> core.$for.isIterable(arr)
+
+    if (node.operator !== "in") return;
+
+    var left = node.left;
+    if (!isSymbolIterator(left)) return;
+
+    return t.callExpression(file.addImport("" + RUNTIME_MODULE_NAME + "/core-js/is-iterable", "isIterable", true), [node.right]);
+  },
+
+  MemberExpression: {
+    enter: function enter(node, parent, scope, file) {
       // Array.from -> _core.Array.from
+
+      if (!this.isReferenced()) return;
+
       var obj = node.object;
-      prop = node.property;
+      var prop = node.property;
 
@@ -35,37 +75,27 @@ if (!t.isReferenced(obj, node)) return;
       if (node.computed) return;
+
       if (!has(definitions.methods, obj.name)) return;
-      if (!has(definitions.methods[obj.name], prop.name)) return;
+
+      var methods = definitions.methods[obj.name];
+      if (!has(methods, prop.name)) return;
+
       if (scope.getBindingIdentifier(obj.name)) return;
 
-      var modulePath = definitions.methods[obj.name][prop.name];
+      var modulePath = methods[prop.name];
       return file.addImport("" + RUNTIME_MODULE_NAME + "/core-js/" + modulePath, "" + obj.name + "$" + prop.name, true);
-    } else if (this.isReferencedIdentifier() && !t.isMemberExpression(parent) && has(definitions.builtins, node.name) && !scope.getBindingIdentifier(node.name)) {
-      // Symbol() -> _core.Symbol(); new Promise -> new _core.Promise
-      var modulePath = definitions.builtins[node.name];
-      return file.addImport("" + RUNTIME_MODULE_NAME + "/core-js/" + modulePath, node.name, true);
-    } else if (this.isCallExpression()) {
-      // arr[Symbol.iterator]() -> _core.$for.getIterator(arr)
+    },
 
-      var callee = node.callee;
-      if (node.arguments.length) return false;
+    exit: function exit(node, parent, scope, file) {
+      if (!this.isReferenced()) return;
 
-      if (!t.isMemberExpression(callee)) return false;
-      if (!callee.computed) return false;
+      var prop = node.property;
+      var obj = node.object;
 
-      prop = callee.property;
-      if (!isSymbolIterator(prop)) return false;
+      if (!has(definitions.builtins, obj.name)) return;
 
-      return t.callExpression(file.addImport("" + RUNTIME_MODULE_NAME + "/core-js/get-iterator", "getIterator", true), [callee.object]);
-    } else if (this.isBinaryExpression()) {
-      // Symbol.iterator in arr -> core.$for.isIterable(arr)
-
-      if (node.operator !== "in") return;
-
-      var left = node.left;
-      if (!isSymbolIterator(left)) return;
-
-      return t.callExpression(file.addImport("" + RUNTIME_MODULE_NAME + "/core-js/is-iterable", "isIterable", true), [node.right]);
+      var modulePath = definitions.builtins[obj.name];
+      return t.memberExpression(file.addImport("" + RUNTIME_MODULE_NAME + "/core-js/" + modulePath, "" + obj.name, true), prop);
     }
   }
-};
+});
 
@@ -72,0 +102,0 @@ exports.metadata = {

lib/babel/traversal/index.js

@@ -87,2 +87,5 @@ "use strict";
     var fns = obj[type];
+    if (typeof fns === "function") {
+      obj[type] = fns = { enter: fns };
+    }
 
@@ -89,0 +92,0 @@ var aliases = t.FLIPPED_ALIAS_KEYS[type];

package.json

 {
   "name": "babel-core",
   "description": "Turn ES6 code into readable vanilla ES5 with source maps",
-  "version": "5.1.2",
+  "version": "5.1.3",
   "author": "Sebastian McKenzie <[e-mail]>",
@@ -49,3 +49,3 @@ "homepage": "https://babeljs.io/",
     "private": "^0.1.6",
-    "regenerator": "https://github.com/sebmck/regenerator/archive/block-hoist.tar.gz",
+    "regenerator": "^0.8.20",
     "regexpu": "^1.1.2",
@@ -52,0 +52,0 @@ "repeating": "^1.1.2",

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Total package byte prevSize

2525517

increased by0.13%

Lines of code

22990

increased by0.25%

Number of high supply chain risk alerts

0

decreased by-100%

Dependency changes

• + Addedacorn@5.7.4(transitive)

• + Addedalign-text@0.1.4(transitive)

• + Addedalter@0.2.0(transitive)

• + Addedast-traverse@0.1.1(transitive)

• + Addedast-types@0.8.120.9.6(transitive)

• + Addedbreakable@1.0.0(transitive)

• + Addedcamelcase@1.2.1(transitive)

• + Addedcenter-align@0.1.3(transitive)

• + Addedcliui@2.1.0(transitive)

• + Addedcommander@2.20.3(transitive)

• + Addedcommoner@0.10.8(transitive)

• + Addeddecamelize@1.2.0(transitive)

• + Addeddefined@1.0.1(transitive)

• + Addeddefs@1.1.1(transitive)

• + Addeddetective@4.7.1(transitive)

• + Addedesprima@3.1.3(transitive)

• + Addedglob@5.0.15(transitive)

• + Addediconv-lite@0.4.24(transitive)

• + Addedinflight@1.0.6(transitive)

• + Addedinherits@2.0.4(transitive)

• + Addedinvert-kv@1.0.0(transitive)

• + Addedis-buffer@1.1.6(transitive)

• + Addedkind-of@3.2.2(transitive)

• + Addedlazy-cache@1.0.4(transitive)

• + Addedlcid@1.0.0(transitive)

• + Addedlongest@1.0.1(transitive)

• + Addedonce@1.4.0(transitive)

• + Addedos-locale@1.4.0(transitive)

• + Addedq@1.5.1(transitive)

• + Addedrecast@0.10.330.11.23(transitive)

• + Addedregenerator@0.8.46(transitive)

• + Addedregenerator-runtime@0.9.6(transitive)

• + Addedrepeat-string@1.6.1(transitive)

• + Addedright-align@0.1.3(transitive)

• + Addedsafer-buffer@2.1.2(transitive)

• + Addedsimple-fmt@0.1.0(transitive)

• + Addedsimple-is@0.2.0(transitive)

• + Addedstable@0.1.8(transitive)

• + Addedstringmap@0.2.2(transitive)

• + Addedstringset@0.2.1(transitive)

• + Addedthrough@2.3.8(transitive)

• + Addedtryor@0.1.2(transitive)

• + Addedwindow-size@0.1.4(transitive)

• + Addedwordwrap@0.0.2(transitive)

• + Addedwrappy@1.0.2(transitive)

• + Addedy18n@3.2.2(transitive)

• + Addedyargs@3.27.0(transitive)

• - Removedast-types@0.8.15(transitive)

• - Removedrecast@0.10.43(transitive)

• Updatedregenerator@^0.8.20