AST_Scope.DEFMETHOD("hoist_properties", function(compressor){
var self = this;
if (!compressor.option("hoist_props") || compressor.has_directive("use asm")) return self;
+ var top_retain = self instanceof AST_Toplevel && compressor.top_retain || return_false;
var defs_by_id = Object.create(null);
var var_names = Object.create(null);
self.enclosed.forEach(function(def) {
&& !(def = sym.definition()).escaped
&& !def.single_use
&& !def.direct_access
+ && !top_retain(def)
&& (value = sym.fixed_value()) === node.value
&& value instanceof AST_Object) {
var defs = new Dictionary();
}
expect_stdout: "1 2"
}
+
+issue_2473_1: {
+ options = {
+ hoist_props: false,
+ reduce_vars: true,
+ top_retain: [ "x", "y" ],
+ toplevel: true,
+ unused: true,
+ }
+ input: {
+ var x = {};
+ var y = [];
+ var z = {};
+ }
+ expect: {
+ var x = {};
+ var y = [];
+ }
+}
+
+issue_2473_2: {
+ options = {
+ hoist_props: true,
+ reduce_vars: true,
+ top_retain: [ "x", "y" ],
+ toplevel: true,
+ unused: true,
+ }
+ input: {
+ var x = {};
+ var y = [];
+ var z = {};
+ }
+ expect: {
+ var x = {};
+ var y = [];
+ }
+}
+
+issue_2473_3: {
+ options = {
+ hoist_props: true,
+ reduce_vars: true,
+ top_retain: "o",
+ toplevel: true,
+ unused: true,
+ }
+ input: {
+ var o = {
+ a: 1,
+ b: 2,
+ };
+ console.log(o.a, o.b);
+ }
+ expect: {
+ var o = {
+ a: 1,
+ b: 2,
+ };
+ console.log(o.a, o.b);
+ }
+ expect_stdout: "1 2"
+}
+
+issue_2473_4: {
+ options = {
+ hoist_props: true,
+ reduce_vars: true,
+ top_retain: "o",
+ toplevel: true,
+ unused: true,
+ }
+ input: {
+ (function() {
+ var o = {
+ a: 1,
+ b: 2,
+ };
+ console.log(o.a, o.b);
+ })();
+ }
+ expect: {
+ (function() {
+ var o_a = 1, o_b = 2;
+ console.log(o_a, o_b);
+ })();
+ }
+ expect_stdout: "1 2"
+}