tools: update ESLint to v3.8.0

Update ESLint to v3.8.0.

* Installed with `npm install --production` to avoid installing
  unnecessary dev files
* Used `dmn -f clean` to further eliminate unneeded files

PR-URL: https://github.com/nodejs/node/pull/9112
Reviewed-By: Teddy Katz <teddy.katz@gmail.com>
Reviewed-By: James M Snell <jasnell@gmail.com>
Reviewed-By: Roman Reiss <me@silverwind.io>

1 files changed, 20 insertions, 1 deletions

diff --git a/tools/eslint/lib/rules/prefer-numeric-literals.js b/tools/eslint/lib/rules/prefer-numeric-literals.js
index 1e3bed5915..ed84ce6a9f 100644
--- a/tools/eslint/lib/rules/prefer-numeric-literals.js
+++ b/tools/eslint/lib/rules/prefer-numeric-literals.js
@@ -17,7 +17,9 @@ module.exports = {
             recommended: false
         },
 
-        schema: []
+        schema: [],
+
+        fixable: "code"
     },
 
     create(context) {
@@ -27,6 +29,12 @@ module.exports = {
             16: "hexadecimal"
         };
 
+        const prefixMap = {
+            2: "0b",
+            8: "0o",
+            16: "0x"
+        };
+
         //--------------------------------------------------------------------------
         // Public
         //--------------------------------------------------------------------------
@@ -53,6 +61,17 @@ module.exports = {
                         message: "Use {{radixName}} literals instead of parseInt().",
                         data: {
                             radixName
+                        },
+                        fix(fixer) {
+                            const newPrefix = prefixMap[node.arguments[1].value];
+
+                            if (+(newPrefix + node.arguments[0].value) !== parseInt(node.arguments[0].value, node.arguments[1].value)) {
+
+                                // If the newly-produced literal would be invalid, (e.g. 0b1234),
+                                // or it would yield an incorrect parseInt result for some other reason, don't make a fix.
+                                return null;
+                            }
+                            return fixer.replaceText(node, prefixMap[node.arguments[1].value] + node.arguments[0].value);
                         }
                     });
                 }