From 673b0716379e261008b6cbf187e6b212104fb69e Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Mon, 1 Jan 2018 00:09:26 +0800
Subject: enhance `join_vars` & `sequences` (#2697)

- nudge declarations without assignments
  - within `AST_BlockStatement`
  - across `AST_If`
---
 test/compress/sequences.js | 63 ++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

(limited to 'test/compress/sequences.js')

diff --git a/test/compress/sequences.js b/test/compress/sequences.js
index 81b06881..3d12fb0b 100644
--- a/test/compress/sequences.js
+++ b/test/compress/sequences.js
@@ -796,3 +796,66 @@ cascade_assignment_in_return: {
         }
     }
 }
+
+hoist_defun: {
+    options = {
+        join_vars: true,
+        sequences: true,
+    }
+    input: {
+        x();
+        function f() {}
+        y();
+    }
+    expect: {
+        function f() {}
+        x(), y();
+    }
+}
+
+hoist_decl: {
+    options = {
+        join_vars: true,
+        sequences: true,
+    }
+    input: {
+        var a;
+        w();
+        var b = x();
+        y();
+        for (var c; 0;) z();
+        var d;
+    }
+    expect: {
+        var a;
+        w();
+        var b = x(), c, d;
+        for (y(); 0;) z();
+    }
+}
+
+for_init_var: {
+    options = {
+        join_vars: true,
+        unused: false,
+    }
+    input: {
+        var a = "PASS";
+        (function() {
+            var b = 42;
+            for (var c = 5; c > 0;) c--;
+            a = "FAIL";
+            var a;
+        })();
+        console.log(a);
+    }
+    expect: {
+        var a = "PASS";
+        (function() {
+            for (var b = 42, c = 5, a; c > 0;) c--;
+            a = "FAIL";
+        })();
+        console.log(a);
+    }
+    expect_stdout: "PASS"
+}
-- 
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