Update babel to v7 and jest to v24

.babelrc

@@ -1,8 +1,27 @@
 {
-  "presets": [["env", {"modules": false, "targets": {"node": "6.10"}}]],
+  "presets": [
+    [
+      "@babel/preset-env",
+      {
+        "modules": false,
+        "targets": {
+          "node": "6.10"
+        }
+      }
+    ]
+  ],
   "env": {
     "test": {
-      "presets": [["env", {"targets": {"node": "6.10"}}]]
+      "presets": [
+        [
+          "@babel/preset-env",
+          {
+            "targets": {
+              "node": "6.10"
+            }
+          }
+        ]
+      ]
     }
   }
-}
+}

package.json

@@ -22,10 +22,9 @@
   },
   "bugs": "https://github.com/foliojs/pdfkit/issues",
   "devDependencies": {
-    "babel-core": "^6.26.3",
-    "babel-jest": "^23.6.0",
-    "babel-plugin-external-helpers": "^6.22.0",
-    "babel-preset-env": "^1.7.0",
+    "@babel/core": "^7.0.0",
+    "@babel/preset-env": "^7.0.0",
+    "babel-jest": "^24.7.1",
     "blob-stream": "^0.1.2",
     "brace": "^0.2.1",
     "brfs": "~2.0.1",
@@ -34,11 +33,11 @@
     "eslint": "^5.3.0",
     "iconv-lite": "^0.4.13",
     "jade": "~1.1.5",
-    "jest": "^23.4.2",
+    "jest": "^24.7.1",
     "markdown": "~0.5.0",
     "prettier": "1.15.3",
-    "rollup": "^0.65.0",
-    "rollup-plugin-babel": "^3.0.7",
+    "rollup": "^1.11.0",
+    "rollup-plugin-babel": "^4.0.1",
     "rollup-plugin-cpy": "^1.0.0"
   },
   "dependencies": {

rollup.config.js

@@ -46,7 +46,7 @@ export default [
         babelrc: false,
         presets: [
           [
-            'env',
+            '@babel/preset-env',
             {
               modules: false,
               targets: {
@@ -54,8 +54,7 @@ export default [
               }
             }
           ]
-        ],
-        plugins: ['external-helpers']
+        ]
       }),
       copy({
         files: ['lib/font/data/*.afm'],
@@ -79,17 +78,16 @@ export default [
         babelrc: false,
         presets: [
           [
-            'env',
+            '@babel/preset-env',
             {
               modules: false,
               targets: {
                 browsers: ['ie 11']
-              }
+              },
+              exclude: ['@babel/plugin-transform-typeof-symbol']
             }
           ]
-        ],
-        plugins: ['external-helpers'],
-        exclude: ['babel-plugin-transform-es2015-typeof-symbol']
+        ]
       })
     ]
   },
@@ -108,7 +106,7 @@ export default [
         babelrc: false,
         presets: [
           [
-            'env',
+            '@babel/preset-env',
             {
               modules: false,
               targets: {
@@ -122,8 +120,7 @@ export default [
               }
             }
           ]
-        ],
-        plugins: ['external-helpers']
+        ]
       })
     ]
   },
@@ -141,7 +138,7 @@ export default [
         babelrc: false,
         presets: [
           [
-            'env',
+            '@babel/preset-env',
             {
               loose: true,
               modules: false,
@@ -150,8 +147,7 @@ export default [
               }
             }
           ]
-        ],
-        plugins: ['external-helpers']
+        ]
       })
     ]
   }