enhance `inline` & `side_effects` (#4506)

2 files changed, 79 insertions, 20 deletions

diff --git a/test/compress/default-values.js b/test/compress/default-values.js
index 7308b303..0fa27ea5 100644
--- a/test/compress/default-values.js
+++ b/test/compress/default-values.js
@@ -354,6 +354,22 @@ inline_constant: {
     node_version: ">=6"
 }
 
+inline_destructured: {
+    options = {
+        inline: true,
+    }
+    input: {
+        console.log(function([ a ] = []) {
+            return "PASS";
+        }());
+    }
+    expect: {
+        console.log(([ [] = [] ] = [], "PASS"));
+    }
+    expect_stdout: "PASS"
+    node_version: ">=6"
+}
+
 inline_function: {
     options = {
         default_values: true,
@@ -423,6 +439,45 @@ inline_loop_2: {
     node_version: ">=6"
 }
 
+inline_side_effects_1: {
+    options = {
+        inline: true,
+        toplevel: true,
+    }
+    input: {
+        var a = 42;
+        (function(b = --a) {})(console);
+        console.log(a);
+    }
+    expect: {
+        var a = 42;
+        [ b = --a ] = [ console ],
+        void 0;
+        var b;
+        console.log(a);
+    }
+    expect_stdout: "42"
+    node_version: ">=6"
+}
+
+inline_side_effects_2: {
+    options = {
+        side_effects: true,
+    }
+    input: {
+        var a = 42;
+        (function(b = --a) {})(console);
+        console.log(a);
+    }
+    expect: {
+        var a = 42;
+        [ 0[0] = --a ] = [ console ];
+        console.log(a);
+    }
+    expect_stdout: "42"
+    node_version: ">=6"
+}
+
 drop_empty_iife: {
     options = {
         side_effects: true,
@@ -1419,7 +1474,7 @@ issue_4502_4: {
         (function(a, b = console.log("FAIL")) {})(..."" + console.log(42));
     }
     expect: {
-        (function(a, b = console.log("FAIL")) {})(..."" + console.log(42));
+        [ , 0[0] = console.log("FAIL") ] = [ ..."" + console.log(42) ];
     }
     expect_stdout: "42"
     node_version: ">=6"
diff --git a/test/compress/destructured.js b/test/compress/destructured.js
index 9812b146..f9d32ce0 100644
--- a/test/compress/destructured.js
+++ b/test/compress/destructured.js
@@ -188,7 +188,7 @@ funarg_side_effects_1: {
     }
     expect: {
         try {
-            (function({}) {})();
+            [ {} ] = [];
         } catch (e) {
             console.log("PASS");
         }
@@ -682,7 +682,7 @@ funarg_inline: {
     }
     expect: {
         try {
-            (function({}) {})();
+            [ {} ] = [];
         } catch (e) {
             console.log("PASS");
         }
@@ -1718,10 +1718,14 @@ issue_4312: {
     expect: {
         var a;
         b = "PASS",
-        (function({
-            [a = b]: d,
-        }){})((c = "FAIL") && c);
-        var b, c;
+        c = "FAIL",
+        [
+            {
+                [a = b]: d,
+            },
+        ] = [ c && c ],
+        void 0;
+        var b, c, d;
         console.log(a);
     }
     expect_stdout: "PASS"
@@ -1783,9 +1787,7 @@ issue_4319: {
         function f(a) {
             while (!a);
         }
-        console.log(function({}) {
-            return f(console);
-        }(0));
+        console.log(([ {} ] = [ 0 ], f(console)));
     }
     expect_stdout: "undefined"
     node_version: ">=6"
@@ -1809,11 +1811,9 @@ issue_4321: {
     }
     expect: {
         try {
-            console.log(function({}) {
-                return function() {
-                    while (!console);
-                }();
-            }());
+            console.log(([ {} ] = [], function() {
+                while (!console);
+            }()));
         } catch (e) {
             console.log("PASS");
         }
@@ -1844,11 +1844,15 @@ issue_4323: {
     }
     expect: {
         var a = 0;
-        (function({
-            [function a() {
-                console.log(typeof a);
-            }()]: d,
-        }) {})(0);
+        [
+            {
+                [function a() {
+                    console.log(typeof a);
+                }()]: d,
+            },
+        ] = [ 0 ],
+        void 0;
+        var d;
         e = 1,
         console.log,
         void e.p;