enhance reduce_vars (#5636)

2022-08-30 09:00:43 +01:00
parent 15b608f74c
commit 10bc86ba10
7 changed files with 109 additions and 40 deletions
--- a/test/compress/if_return.js
+++ b/test/compress/if_return.js
@@ -1834,6 +1834,33 @@ switch_return_5: {
    ]
 }

+merged_references: {
+    options = {
+        if_return: true,
+        reduce_vars: true,
+        unused: true,
+    }
+    input: {
+        var a, b = "PASS";
+        console.log(function(c) {
+            if (c = b)
+                return a || c;
+            c = FAIL;
+            return a || c;
+        }());
+    }
+    expect: {
+        var a, b = "PASS";
+        console.log(function(c) {
+            if (c = b);
+            else
+                c = FAIL;
+            return a || c;
+        }());
+    }
+    expect_stdout: "PASS"
+}
+
 issue_5583: {
    options = {
        conditionals: true,