});
def(AST_Assign, function(compressor){
var left = this.left;
- if (left.has_side_effects(compressor)) return this;
+ if (left.has_side_effects(compressor)
+ || compressor.has_directive("use strict")
+ && left instanceof AST_PropAccess
+ && left.expression.is_constant()) {
+ return this;
+ }
this.write_only = true;
while (left instanceof AST_PropAccess) {
left = left.expression;
expect_stdout: true
}
+set_immutable_5: {
+ options = {
+ collapse_vars: true,
+ conditionals: true,
+ evaluate: true,
+ pure_getters: "strict",
+ reduce_funcs: true,
+ reduce_vars: true,
+ side_effects: true,
+ toplevel: true,
+ unused: true,
+ }
+ input: {
+ "use strict";
+ var a = 1;
+ a.foo += "";
+ if (a.foo) console.log("FAIL");
+ else console.log("PASS");
+ }
+ expect: {
+ "use strict";
+ 1..foo += "";
+ 1..foo ? console.log("FAIL") : console.log("PASS");
+ }
+ expect_stdout: true
+}
+
+set_immutable_6: {
+ options = {
+ collapse_vars: true,
+ conditionals: true,
+ evaluate: true,
+ pure_getters: "strict",
+ reduce_funcs: true,
+ reduce_vars: true,
+ side_effects: true,
+ toplevel: true,
+ unused: true,
+ }
+ input: {
+ var a = 1;
+ a.foo += "";
+ if (a.foo) console.log("FAIL");
+ else console.log("PASS");
+ }
+ expect: {
+ 1..foo ? console.log("FAIL") : console.log("PASS");
+ }
+ expect_stdout: true
+}
+
set_mutable_1: {
options = {
collapse_vars: true,