inline property access of object literal (#2209)

- only if property value is side-effect-free
- guard by `unsafe`

fixes #2208

1 files changed, 113 insertions, 0 deletions

diff --git a/test/compress/properties.js b/test/compress/properties.js
index 8126d6c6..a5527de3 100644
--- a/test/compress/properties.js
+++ b/test/compress/properties.js
@@ -657,3 +657,116 @@ accessor_this: {
     expect_exact: 'var a=1;var b={get this(){return a},set this(c){a=c}};console.log(b.this,b.this=2,b.this);'
     expect_stdout: "1 2 2"
 }
+
+issue_2208_1: {
+    options = {
+        inline: true,
+        side_effects: true,
+        unsafe: true,
+    }
+    input: {
+        console.log({
+            p: function() {
+                return 42;
+            }
+        }.p());
+    }
+    expect: {
+        console.log(42);
+    }
+    expect_stdout: "42"
+}
+
+issue_2208_2: {
+    options = {
+        inline: true,
+        side_effects: true,
+        unsafe: true,
+    }
+    input: {
+        console.log({
+            a: 42,
+            p: function() {
+                return this.a;
+            }
+        }.p());
+    }
+    expect: {
+        console.log({
+            a: 42,
+            p: function() {
+                return this.a;
+            }
+        }.p());
+    }
+    expect_stdout: "42"
+}
+
+issue_2208_3: {
+    options = {
+        inline: true,
+        side_effects: true,
+        unsafe: true,
+    }
+    input: {
+        a = 42;
+        console.log({
+            p: function() {
+                return function() {
+                    return this.a;
+                }();
+            }
+        }.p());
+    }
+    expect: {
+        a = 42;
+        console.log(function() {
+            return this.a;
+        }());
+    }
+    expect_stdout: "42"
+}
+
+issue_2208_4: {
+    options = {
+        inline: true,
+        side_effects: true,
+        unsafe: true,
+    }
+    input: {
+        function foo() {}
+        console.log({
+            a: foo(),
+            p: function() {
+                return 42;
+            }
+        }.p());
+    }
+    expect: {
+        function foo() {}
+        console.log((foo(), function() {
+            return 42;
+        })());
+    }
+    expect_stdout: "42"
+}
+
+issue_2208_5: {
+    options = {
+        inline: true,
+        side_effects: true,
+        unsafe: true,
+    }
+    input: {
+        console.log({
+            p: "FAIL",
+            p: function() {
+                return 42;
+            }
+        }.p());
+    }
+    expect: {
+        console.log(42);
+    }
+    expect_stdout: "42"
+}