Make classes implicitly strict mode

2016-09-11 15:06:10 +02:00
parent 88f6ff38d1
commit 947b8750e8
5 changed files with 71 additions and 5 deletions
--- a/lib/ast.js
+++ b/lib/ast.js
@@ -1292,12 +1292,15 @@ TreeWalker.prototype = {
            this.directives = Object.create(this.directives);
        } else if (node instanceof AST_Directive) {
            this.directives[node.value] = this.directives[node.value] ? "up" : true;
+        } else if (node instanceof AST_Class) {
+            this.directives = Object.create(this.directives);
+            this.directives["use strict"] = this.directives["use strict"] ? "up" : true;
        }
        this.stack.push(node);
    },
    pop: function(node) {
        this.stack.pop();
-        if (node instanceof AST_Lambda) {
+        if (node instanceof AST_Lambda || node instanceof AST_Class) {
            this.directives = Object.getPrototypeOf(this.directives);
        }
    },