[[FIX]] parse const declarations in ForIn/Of loops

Closes #2334 Closes #2335
jshint · Apr 24, 2015 · 2b673d9 · 2b673d9
1 parent dd768c2
commit 2b673d9
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Showing 2 changed files with 12 additions and 5 deletions.
diff --git a/src/jshint.js b/src/jshint.js
@@ -4189,8 +4189,8 @@ var JSHINT = (function() {
       if (state.tokens.next.id === "var") {
         advance("var");
         state.tokens.curr.fud({ prefix: true });
-      } else if (state.tokens.next.id === "let") {
-        advance("let");
+      } else if (state.tokens.next.id === "let" || state.tokens.next.id === "const") {
+        advance(state.tokens.next.id);
         // create a new block scope
         letscope = true;
         funct["(blockscope)"].stack();

diff --git a/tests/unit/parser.js b/tests/unit/parser.js
@@ -3658,7 +3658,8 @@ exports["for of as esnext"] = function (test) {
     "for (let x of [1,2,3,4]) {",
     "    print(x);",
     "}",
-    "for (let x of [1,2,3,4]) print(x);"
+    "for (let x of [1,2,3,4]) print(x);",
+    "for (const x of [1,2,3,4]) print(x);"
   ];
   TestRun(test)
     .test(code, {esnext: true, undef: true, predef: ["print"]});
@@ -3671,13 +3672,16 @@ exports["for of as es5"] = function (test) {
     "for (let x of [1,2,3,4]) {",
     "    print(x);",
     "}",
-    "for (let x of [1,2,3,4]) print(x);"
+    "for (let x of [1,2,3,4]) print(x);",
+    "for (const x of [1,2,3,4]) print(x);"
   ];
   TestRun(test)
     .addError(1, "'for of' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
     .addError(1, "'let' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
     .addError(4, "'for of' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
     .addError(4, "'let' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
+    .addError(5, "'for of' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
+    .addError(5, "'const' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
     .test(code, {undef: true, predef: ["print"]}); // es5
 
   test.done();
@@ -3688,13 +3692,16 @@ exports["for of as legacy JS"] = function (test) {
     "for (let x of [1,2,3,4]) {",
     "    print(x);",
     "}",
-    "for (let x of [1,2,3,4]) print(x);"
+    "for (let x of [1,2,3,4]) print(x);",
+    "for (const x of [1,2,3,4]) print(x);"
   ];
   TestRun(test)
     .addError(1, "'for of' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
     .addError(1, "'let' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
     .addError(4, "'for of' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
     .addError(4, "'let' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
+    .addError(5, "'for of' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
+    .addError(5, "'const' is available in ES6 (use esnext option) or Mozilla JS extensions (use moz).")
     .test(code, {undef: true, predef: ["print"]}); // es5
 
   test.done();