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-rw-r--r--lib/compress.js2
-rw-r--r--test/compress/const.js20
-rw-r--r--test/compress/let.js22
3 files changed, 41 insertions, 3 deletions
diff --git a/lib/compress.js b/lib/compress.js
index 2b28c754..08b0987a 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -3118,7 +3118,7 @@ merge(Compressor.prototype, {
}
}
} else if (stat instanceof AST_ForIn) {
- stat.object = cons_seq(stat.object);
+ if (!is_lexical_definition(stat.init)) stat.object = cons_seq(stat.object);
} else if (stat instanceof AST_If) {
stat.condition = cons_seq(stat.condition);
} else if (stat instanceof AST_Switch) {
diff --git a/test/compress/const.js b/test/compress/const.js
index 38cd8fbd..be49e845 100644
--- a/test/compress/const.js
+++ b/test/compress/const.js
@@ -1434,3 +1434,23 @@ issue_4527: {
}
expect_stdout: "aaaa"
}
+
+issue_4689: {
+ options = {
+ sequences: true,
+ }
+ input: {
+ "use strict";
+ var a = "PASS";
+ console.log(a);
+ for (const a in 42);
+ }
+ expect: {
+ "use strict";
+ var a = "PASS";
+ console.log(a);
+ for (const a in 42);
+ }
+ expect_stdout: "PASS"
+ node_version: ">=4"
+}
diff --git a/test/compress/let.js b/test/compress/let.js
index 7a9db169..b5005ebf 100644
--- a/test/compress/let.js
+++ b/test/compress/let.js
@@ -1319,7 +1319,6 @@ issue_4531_2: {
toplevel: true,
}
input: {
- "use strict";
var a = console;
console.log(typeof a, function a() {
let { [console]: a } = 0 && a;
@@ -1328,7 +1327,6 @@ issue_4531_2: {
}());
}
expect: {
- "use strict";
var o = console;
console.log(typeof o, function o() {
let { [console]: o } = 0;
@@ -1339,3 +1337,23 @@ issue_4531_2: {
expect_stdout: "object undefined"
node_version: ">=6"
}
+
+issue_4689: {
+ options = {
+ sequences: true,
+ }
+ input: {
+ "use strict";
+ var a = "PASS";
+ console.log(a);
+ for (let a in 42);
+ }
+ expect: {
+ "use strict";
+ var a = "PASS";
+ console.log(a);
+ for (let a in 42);
+ }
+ expect_stdout: "PASS"
+ node_version: ">=4"
+}