v5.5.2

This reverts commit f3acedbf08.

CHANGELOG.md

@@ -13,6 +13,19 @@ _Note: Gaps between patch versions are faulty/broken releases._
 
 See [CHANGELOG - 6to5](CHANGELOG-6to5.md) for the pre-4.0.0 version changelog.
 
+## 5.5.2
+
+ * **Bug Fix**
+  * Fix `NodePath#isPure` on `Property` nodes.
+  * Use cwd instead of entry file directory when working out relative directory for `babel/register`.
+ * **Internal**
+  * Add scary warning for those few who choose to use the WIP experimental transformers.
+
+## 5.5.1
+
+ * **Bug Fix**
+  * Remove `ClassProperty` nodes always in the `Flow` transformer. This is fine now since class properties aren't supported in any engine that supports classes but the `es7.classProperties` transformer will need to be updated in the future to desugar to ES6 classes instead of relying on the `es6.classes` transformer from being ran.
+
 ## 5.5.0
 
  * **Bug Fix**

package.json

@@ -1,7 +1,7 @@
 {
   "name": "babel-core",
   "description": "A compiler for writing next generation JavaScript",
-  "version": "5.5.0",
+  "version": "5.5.2",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "homepage": "https://babeljs.io/",
   "license": "MIT",

packages/babel-cli/package.json

@@ -1,14 +1,14 @@
 {
   "name": "babel",
   "description": "Turn ES6 code into readable vanilla ES5 with source maps",
-  "version": "5.4.7",
+  "version": "5.5.1",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",
   "homepage": "https://babeljs.io/",
   "license": "MIT",
   "repository": "babel/babel",
   "preferGlobal": true,
   "dependencies": {
-    "babel-core": "^5.4.7",
+    "babel-core": "^5.5.1",
     "chokidar": "^1.0.0",
     "commander": "^2.6.0",
     "convert-source-map": "^1.1.0",

packages/babel-runtime/package.json

@@ -1,7 +1,7 @@
 {
   "name": "babel-runtime",
   "description": "babel selfContained runtime",
-  "version": "5.4.7",
+  "version": "5.5.1",
   "license": "MIT",
   "repository": "babel/babel",
   "author": "Sebastian McKenzie <sebmck@gmail.com>",

src/acorn/src/expression.js

@@ -513,7 +513,7 @@ pp.parseNew = function() {
 pp.parseTemplateElement = function() {
   let elem = this.startNode()
   elem.value = {
-    raw: this.input.slice(this.start, this.end),
+    raw: this.input.slice(this.start, this.end).replace(/\r\n?/g, '\n'),
     cooked: this.value
   }
   this.next()

src/acorn/src/tokenize.js

@@ -577,11 +577,15 @@ pp.readTmplToken = function() {
     } else if (isNewLine(ch)) {
       out += this.input.slice(chunkStart, this.pos)
       ++this.pos
-      if (ch === 13 && this.input.charCodeAt(this.pos) === 10) {
-        ++this.pos
-        out += "\n"
-      } else {
-        out += String.fromCharCode(ch)
+      switch (ch) {
+        case 13:
+          if (this.input.charCodeAt(this.pos) === 10) ++this.pos;
+        case 10:
+          out += "\n";
+          break;
+        default:
+          out += String.fromCharCode(ch);
+          break;
       }
       if (this.options.locations) {
         ++this.curLine

src/babel/api/register/node.js

@@ -38,7 +38,7 @@ var only;
 var oldHandlers   = {};
 var maps          = {};
 
-var cwd = require.main ? require.main.filename : process.cwd();
+var cwd = process.cwd();
 
 var getRelativePath = function (filename){
   return path.relative(cwd, filename);

src/babel/transformation/file/logger.js

@@ -16,6 +16,10 @@ export default class Logger {
     return parts;
   }
 
+  warn(msg) {
+    console.warn(this._buildMessage(msg));
+  }
+
   error(msg: string, Constructor = Error) {
     throw new Constructor(this._buildMessage(msg));
   }

src/babel/transformation/file/options.json

@@ -47,7 +47,8 @@
   },
 
   "experimental": {
-    "deprecated": "use `--stage 0`/`{ stage: 0 }` instead"
+    "description": "allow use of experimental transformers",
+    "default": false
   },
 
   "highlightCode": {

src/babel/transformation/transformer-pass.js

@@ -13,6 +13,12 @@ export default class TransformerPass {
     this.handlers    = transformer.handlers;
     this.file        = file;
     this.key         = transformer.key;
+
+    if (this.canTransform() && transformer.metadata.experimental && !file.opts.experimental) {
+      file.log.warn(`THE TRANSFORMER ${this.key} HAS BEEN MARKED AS EXPERIMENTAL AND IS WIP. USE AT YOUR OWN RISK. ` +
+                    "THIS WILL HIGHLY LIKELY BREAK YOUR CODE SO USE WITH **EXTREME** CAUTION. ENABLE THE " +
+                    "`experimental` OPTION TO IGNORE THIS WARNING.");
+    }
   }
 
   canTransform(): boolean {

src/babel/transformation/transformers/minification/constant-folding.js

@@ -2,7 +2,8 @@ import * as t from "../../../types";
 
 export var metadata = {
   optional: true,
-  group: "builtin-prepass"
+  group: "builtin-prepass",
+  experimental: true
 };
 
 export function AssignmentExpression() {

src/babel/transformation/transformers/minification/dead-code-elimination.js

@@ -19,7 +19,8 @@ function toStatements(node) {
 
 export var metadata = {
   optional: true,
-  group: "builtin-pre"
+  group: "builtin-pre",
+  experimental: true
 };
 
 export function ReferencedIdentifier(node, parent, scope) {

src/babel/transformation/transformers/other/flow.js

@@ -8,6 +8,7 @@ export function Flow(node) {
 
 export function ClassProperty(node) {
   node.typeAnnotation = null;
+  if (!node.value) this.dangerouslyRemove();
 }
 
 export function Class(node) {

src/babel/traversal/scope/binding.js

@@ -20,7 +20,7 @@ export default class Binding {
 
   deoptValue() {
     this.clearValue();
-    this.deoptValue = true;
+    this.hasDeoptedValue = true;
   }
 
   /**
@@ -28,7 +28,7 @@ export default class Binding {
    */
 
   setValue(value) {
-    if (this.deoptValue) return;
+    if (this.hasDeoptedValue) return;
     this.hasValue = true;
     this.value    = value;
   }
@@ -38,9 +38,9 @@ export default class Binding {
    */
 
   clearValue() {
-    this.deoptValue = false;
-    this.hasValue   = false;
-    this.value      = null;
+    this.hasDeoptedValue = false;
+    this.hasValue        = false;
+    this.value           = null;
   }
 
   /**

src/babel/traversal/scope/index.js

@@ -585,8 +585,8 @@ export default class Scope {
       }
       return true;
     } else if (t.isProperty(node)) {
-      if (node.computed && !t.isPure(node.key, constantsOnly)) return false;
-      return t.isPure(node.value, constantsOnly);
+      if (node.computed && !this.isPure(node.key, constantsOnly)) return false;
+      return this.isPure(node.value, constantsOnly);
     } else {
       return t.isPure(node);
     }

test/acorn/tests-harmony.js

@@ -813,7 +813,7 @@ test("`\\n\\r\\b\\v\\t\\f\\\n\\\r\n`", {
       type: "TemplateLiteral",
       quasis: [{
         type: "TemplateElement",
-        value: {raw: "\\n\\r\\b\\v\\t\\f\\\n\\\r\n", cooked: "\n\r\b\u000b\t\f"},
+        value: {raw: "\\n\\r\\b\\v\\t\\f\\\n\\\n", cooked: "\n\r\b\u000b\t\f"},
         tail: true,
         loc: {
           start: {line: 1, column: 1},
@@ -841,7 +841,7 @@ test("`\\n\\r\\b\\v\\t\\f\\\n\\\r\n`", {
   locations: true
 });
 
-test("`\n\r\n`", {
+test("`\n\r\n\r`", {
   type: "Program",
   body: [{
     type: "ExpressionStatement",
@@ -849,27 +849,27 @@ test("`\n\r\n`", {
       type: "TemplateLiteral",
       quasis: [{
         type: "TemplateElement",
-        value: {raw: "\n\r\n", cooked: "\n\n"},
+        value: {raw: "\n\n\n", cooked: "\n\n\n"},
         tail: true,
         loc: {
           start: {line: 1, column: 1},
-          end: {line: 3, column: 0}
+          end: {line: 4, column: 0}
         }
       }],
       expressions: [],
       loc: {
         start: {line: 1, column: 0},
-        end: {line: 3, column: 1}
+        end: {line: 4, column: 1}
       }
     },
     loc: {
       start: {line: 1, column: 0},
-      end: {line: 3, column: 1}
+      end: {line: 4, column: 1}
     }
   }],
   loc: {
     start: {line: 1, column: 0},
-    end: {line: 3, column: 1}
+    end: {line: 4, column: 1}
   }
 }, {
   ecmaVersion: 6,
@@ -14134,8 +14134,6 @@ test('function normal(x, y = 10) {}', {
   }]
 }, {ecmaVersion: 6});
 
-test("'use strict'; function f([x,,z]) {}", {}, {ecmaVersion: 6});
-
 // test preserveParens option with arrow functions
 test("() => 42", {
   type: "Program",

test/core/fixtures/transformation/flow/strip-type-annotations/expected.js

@@ -64,14 +64,8 @@ class Foo8 {
   "bar"() {}
 }
 function foo(requiredParam, optParam) {}
-class Foo9 {
-  prop1;
-  prop2;
-}
-class Foo10 {
-  static prop1;
-  prop2;
-}
+class Foo9 {}
+class Foo10 {}
 var x = 4;
 class Array {
   concat(items) {}