upgrade babel to v7 and to support fragment

jsx-pragmatic.js

@@ -41,6 +41,10 @@ module.exports = function jsxPragmatic (babel) {
       state.set('jsxDetected', true);
     },
     // JSXElement
+
+    JSXFragment: function (path, state) {
+      state.set('jsxDetected', true);
+    },
   };
 
   return {
@@ -49,7 +53,7 @@ module.exports = function jsxPragmatic (babel) {
         throw new Error("babel-plugin-jsx-pragmatic: You must specify `module` and `import`");
       }
     },
-    inherits: require("babel-plugin-syntax-jsx"),
+    inherits: require("@babel/plugin-syntax-jsx").default,
     visitor: visitor,
   };
 };

package.json

@@ -10,12 +10,12 @@
     "url": "https://github.com/jmm/babel-plugin-jsx-pragmatic"
   },
   "dependencies": {
-    "babel-plugin-syntax-jsx": "^6.0.0"
+    "@babel/plugin-syntax-jsx": "^7.2.0"
   },
   "devDependencies": {
-    "babel-core": "^6.0.0",
-    "babel-plugin-transform-react-jsx": "^6.0.0",
-    "babel-preset-es2015": "^6.0.0",
+    "@babel/core": "^7.2.2",
+    "@babel/plugin-transform-react-jsx": "^7.2.0",
+    "@babel/preset-env": "^7.2.3",
     "lodash": "^3.10.0",
     "mocha": "^2.3.0",
     "sinon": "^1.17.0"

test/fixtures/fragment-only.jsx

@@ -0,0 +1 @@
+(<></>)

test/integration.js

@@ -1,7 +1,7 @@
 var
   _ = require("lodash"),
   assert = require("assert"),
-  babel = require("babel-core"),
+  babel = require("@babel/core"),
   createElement = require("./helpers/create-element"),
   jsxPragmatic = require("../"),
   loadFixture = require("./helpers/load-fixture"),
@@ -75,12 +75,13 @@ describe("Transformed module", function () {
     code = babel.transform(loadFixture("minimal.jsx"), {
       plugins: [
         [jsxPragmatic, opts],
-        ["babel-plugin-transform-react-jsx", {
+        ["@babel/plugin-transform-react-jsx", {
           pragma: pragma,
+          pragmaFrag: "Fragment",
         }]
       ],
 
-      presets: ["es2015"],
+      presets: ["@babel/preset-env"],
     }).code;
 
     vm.runInNewContext(code, {
@@ -97,5 +98,41 @@ describe("Transformed module", function () {
     // Would rather do spy.restore() but it's undocumented.
     createElement.createElement.restore();
   });
+
+  it("Should call createElement() with simple `pragma` for <></>", function () {
+    var
+        code,
+        pragma = "createElement",
+        spy = sinon.spy(createElement, "createElement"),
+        opts = {
+          module: path.join(__dirname, "helpers", "create-element"),
+          import: pragma.split(".")[0],
+        };
+
+    code = babel.transform(loadFixture("fragment-only.jsx"), {
+      plugins: [
+        [jsxPragmatic, opts],
+        ["@babel/plugin-transform-react-jsx", {
+          pragma: pragma,
+          pragmaFrag: "createElement", // todo just for testing
+        }]
+      ],
+      presets: ["@babel/preset-env"],
+    }).code;
+
+    vm.runInNewContext(code, {
+      require: function (id) {
+        if (id === opts.module) return createElement;
+      },
+    });
+
+    assert(
+        spy.callCount,
+        "createElement() wasn't called"
+    );
+
+    // Would rather do spy.restore() but it's undocumented.
+    createElement.createElement.restore();
+  });
 });
 // describe