convert to number under boolean context (#2545)

2017-12-01 12:52:36 +08:00
parent 5a1e99d713
commit 09b320e8a5
8 changed files with 15 additions and 12 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -4699,6 +4699,9 @@ merge(Compressor.prototype, {
    });

    OPT(AST_Boolean, function(self, compressor){
+        if (compressor.in_boolean_context()) return make_node(AST_Number, self, {
+            value: +self.value
+        });
        if (compressor.option("booleans")) {
            var p = compressor.parent();
            if (p instanceof AST_Binary && (p.operator == "=="