boolean_expression ? true : false --> boolean_expression

2016-02-21 18:47:21 -05:00
parent 5486b68850
commit 11b0efdf84
2 changed files with 78 additions and 0 deletions
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -2651,6 +2651,10 @@ merge(Compressor.prototype, {

        // y?true:false --> !!y
        if (is_true(consequent) && is_false(alternative)) {
+            if (self.condition.is_boolean()) {
+                // boolean_expression ? true : false --> boolean_expression
+                return self.condition;
+            }
            self.condition = self.condition.negate(compressor);
            return make_node(AST_UnaryPrefix, self.condition, {
                operator: "!",