From 2ba5f391e008b5d842571094d1140f9ae888ea4d Mon Sep 17 00:00:00 2001
From: "Alex Lam S.L" <alexlamsl@gmail.com>
Date: Wed, 29 Jan 2020 08:52:20 +0800
Subject: enhance `collapse_vars` (#3697)

---
 test/compress/collapse_vars.js | 167 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 167 insertions(+)

(limited to 'test')

diff --git a/test/compress/collapse_vars.js b/test/compress/collapse_vars.js
index c3832d43..4cd59a4c 100644
--- a/test/compress/collapse_vars.js
+++ b/test/compress/collapse_vars.js
@@ -7491,3 +7491,170 @@ issue_3671: {
     }
     expect_stdout: "1"
 }
+
+call_1: {
+    options = {
+        collapse_vars: true,
+    }
+    input: {
+        (function(a) {
+            a = console;
+            (function() {})();
+            a.log("PASS");
+        })();
+    }
+    expect: {
+        (function(a) {
+            (function() {})();
+            (a = console).log("PASS");
+        })();
+    }
+    expect_stdout: "PASS"
+}
+
+call_1_symbol: {
+    options = {
+        collapse_vars: true,
+        reduce_vars: true,
+    }
+    input: {
+        (function(a) {
+            function f() {}
+            a = console;
+            f();
+            a.log(typeof f);
+        })();
+    }
+    expect: {
+        (function(a) {
+            function f() {}
+            f();
+            (a = console).log(typeof f);
+        })();
+    }
+    expect_stdout: "function"
+}
+
+call_2: {
+    options = {
+        collapse_vars: true,
+    }
+    input: {
+        (function(a) {
+            a = console;
+            (function() {
+                return 42;
+                console.log("FAIL");
+            })();
+            a.log("PASS");
+        })();
+    }
+    expect: {
+        (function(a) {
+            (function() {
+                return 42;
+                console.log("FAIL");
+            })();
+            (a = console).log("PASS");
+        })();
+    }
+    expect_stdout: "PASS"
+}
+
+call_2_symbol: {
+    options = {
+        collapse_vars: true,
+        reduce_vars: true,
+    }
+    input: {
+        (function(a) {
+            function f() {
+                return 42;
+                console.log("FAIL");
+            }
+            a = console;
+            f();
+            a.log(typeof f);
+        })();
+    }
+    expect: {
+        (function(a) {
+            function f() {
+                return 42;
+                console.log("FAIL");
+            }
+            f();
+            (a = console).log(typeof f);
+        })();
+    }
+    expect_stdout: "function"
+}
+
+call_3: {
+    options = {
+        collapse_vars: true,
+    }
+    input: {
+        (function(a) {
+            a = console;
+            (function() {
+                a = {
+                    log: function() {
+                        console.log("PASS");
+                    }
+                }
+            })();
+            a.log("FAIL");
+        })();
+    }
+    expect: {
+        (function(a) {
+            a = console;
+            (function() {
+                a = {
+                    log: function() {
+                        console.log("PASS");
+                    }
+                }
+            })();
+            a.log("FAIL");
+        })();
+    }
+    expect_stdout: "PASS"
+}
+
+call_3_symbol: {
+    options = {
+        collapse_vars: true,
+        reduce_vars: true,
+    }
+    input: {
+        (function(a) {
+            function f() {
+                a = {
+                    log: function() {
+                        console.log(typeof f);
+                    }
+                }
+            }
+            a = console;
+            f();
+            a.log("FAIL");
+        })();
+    }
+    expect: {
+        (function(a) {
+            function f() {
+                a = {
+                    log: function() {
+                        console.log(typeof f);
+                    }
+                }
+            }
+            a = console;
+            f();
+            a.log("FAIL");
+        })();
+    }
+    expect_stdout: "function"
+}
-- 
cgit v1.2.3