handle flow control in loops with reduce_vars (#3069)

fixes #3068
2018-04-10 06:51:03 +08:00
parent 183da16896
commit b82fd0ad41
2 changed files with 102 additions and 26 deletions
--- a/test/compress/reduce_vars.js
+++ b/test/compress/reduce_vars.js
@@ -5654,3 +5654,59 @@ issue_3042_2: {
        "true",
    ]
 }
+
+issue_3068_1: {
+    options = {
+        evaluate: true,
+        reduce_vars: true,
+    }
+    input: {
+        (function() {
+            do {
+                continue;
+                var b = "defined";
+            } while (b && b.c);
+        })();
+    }
+    expect: {
+        (function() {
+            do {
+                continue;
+                var b = "defined";
+            } while (b && b.c);
+        })();
+    }
+    expect_stdout: true
+}
+
+issue_3068_2: {
+    options = {
+        evaluate: true,
+        reduce_vars: true,
+    }
+    input: {
+        (function() {
+            do {
+                try {
+                    while ("" == typeof a);
+                } finally {
+                    continue;
+                }
+                var b = "defined";
+            } while (b && b.c);
+        })();
+    }
+    expect: {
+        (function() {
+            do {
+                try {
+                    while ("" == typeof a);
+                } finally {
+                    continue;
+                }
+                var b = "defined";
+            } while (b && b.c);
+        })();
+    }
+    expect_stdout: true
+}