babel-helper-remap-async-to-generator - npm Package Compare versions

Comparing version 6.0.14 to 6.0.15

lib/index.js

@@ -15,2 +15,6 @@ /* @flow */
 
+var _babelTemplate = require("babel-template");
+
+var _babelTemplate2 = _interopRequireDefault(_babelTemplate);
+
 var _babelTypes = require("babel-types");
@@ -22,2 +26,4 @@
 
+var buildWrapper = _babelTemplate2["default"]("\n  (function () {\n    var ref = FUNCTION;\n    return function (PARAMS) {\n      return ref.apply(this, arguments);\n    };\n  })\n");
+
 var awaitVisitor = {
@@ -35,16 +41,15 @@ Function: function Function(path) {
 
-exports["default"] = function (path /*: NodePath*/, callId /*: Object*/) {
+function classMethod(path /*: NodePath*/, callId /*: Object*/) {
   var node = path.node;
-  if (node.generator) return;
+  var body = node.body;
 
-  if (path.isClassMethod()) {
-    node.async = false;
+  node.async = false;
 
-    var body = node.body;
+  var container = t.functionExpression(null, [], t.blockStatement(body.body), true);
+  container.shadow = true;
+  body.body = [t.returnStatement(t.callExpression(t.callExpression(callId, [container]), []))];
+}
 
-    var _container = t.functionExpression(null, [], t.blockStatement(body.body), true);
-    _container.shadow = true;
-    body.body = [t.returnStatement(t.callExpression(t.callExpression(callId, [_container]), []))];
-    return;
-  }
+function plainFunction(path /*: NodePath*/, callId /*: Object*/) {
+  var node = path.node;
 
@@ -56,11 +61,18 @@ node.async = false;
 
-  var container = t.functionExpression(null, [], t.blockStatement([t.returnStatement(t.callExpression(t.callExpression(callId, [node]), []))]));
-  node.shadow = container;
+  var built = t.callExpression(callId, [node]);
+  var container = buildWrapper({
+    FUNCTION: built,
+    PARAMS: node.params.map(function () {
+      return path.scope.generateUidIdentifier("x");
+    })
+  }).expression;
 
+  var retFunction = container.body.body[1].argument;
+
   if (path.isFunctionDeclaration()) {
-    var declar = t.variableDeclaration("let", [t.variableDeclarator(t.identifier(node.id.name), container)]);
+    var declar = t.variableDeclaration("let", [t.variableDeclarator(t.identifier(node.id.name), t.callExpression(container, []))]);
     declar._blockHoist = true;
 
     _babelHelperFunctionName2["default"]({
-      node: container,
+      node: retFunction,
       parent: declar.declarations[0],
@@ -72,6 +84,29 @@ scope: path.scope
   } else {
-    path.replaceWith(container);
+    _babelHelperFunctionName2["default"]({
+      node: retFunction,
+      parent: path.parent,
+      scope: path.scope
+    });
+
+    if (retFunction.id || node.params.length) {
+      // we have an inferred function id or params so we need this wrapper
+      path.replaceWith(t.callExpression(container, []));
+    } else {
+      // we can omit this wrapper as the conditions it protects for do not apply
+      path.replaceWith(built);
+    }
   }
+}
+
+exports["default"] = function (path /*: NodePath*/, callId /*: Object*/) {
+  var node = path.node;
+  if (node.generator) return;
+
+  if (path.isClassMethod()) {
+    return classMethod(path, callId);
+  } else {
+    return plainFunction(path, callId);
+  }
 };
 
 module.exports = exports["default"];

package.json

 {
   "name": "babel-helper-remap-async-to-generator",
-  "version": "6.0.14",
+  "version": "6.0.15",
   "description": "",
@@ -10,6 +10,7 @@ "repository": "https://github.com/babel/babel/tree/master/packages/babel-helper-remap-async-to-generator",
     "babel-runtime": "^5.0.0",
-    "babel-types": "^6.0.14",
+    "babel-template": "^6.0.15",
+    "babel-types": "^6.0.15",
     "babel-traverse": "^6.0.14",
-    "babel-helper-function-name": "^6.0.14"
+    "babel-helper-function-name": "^6.0.15"
   }
-}
+}

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Worsened metrics

Total package byte prevSize

3500

decreased by-6.04%

Dependency count

5

increased by25%

Lines of code

76

decreased by-18.28%

Dependency changes

• + Addedbabel-template@^6.0.15

• Updatedbabel-helper-function-name@^6.0.15

• Updatedbabel-types@^6.0.15