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-rw-r--r--lib/compress.js2
-rw-r--r--test/compress/hoist_props.js28
2 files changed, 29 insertions, 1 deletions
diff --git a/lib/compress.js b/lib/compress.js
index 6e0d36a7..904295ee 100644
--- a/lib/compress.js
+++ b/lib/compress.js
@@ -4927,7 +4927,7 @@ merge(Compressor.prototype, {
if (def.single_use) return;
if (top_retain(def)) return;
if (sym.fixed_value() !== right) return;
- return right instanceof AST_Object;
+ return right instanceof AST_Object && right.properties.length > 0;
}
});
diff --git a/test/compress/hoist_props.js b/test/compress/hoist_props.js
index 563c7aab..cc7ef020 100644
--- a/test/compress/hoist_props.js
+++ b/test/compress/hoist_props.js
@@ -912,3 +912,31 @@ issue_3440: {
}
expect_stdout: "PASS"
}
+
+issue_3868: {
+ options = {
+ hoist_props: true,
+ passes: 2,
+ reduce_vars: true,
+ side_effects: true,
+ }
+ input: {
+ (function(t) {
+ t = {};
+ ({
+ get p() {},
+ q: (console.log("PASS"), +t),
+ }).r;
+ })();
+ }
+ expect: {
+ (function(t) {
+ t = {};
+ ({
+ get p() {},
+ q: (console.log("PASS"), +t),
+ }).r;
+ })();
+ }
+ expect_stdout: "PASS"
+}