return self;
});
+ var NO_MERGE = makePredicate("arguments await yield");
AST_Scope.DEFMETHOD("merge_variables", function(compressor) {
if (!compressor.option("merge_vars")) return;
var self = this, segment = {}, root;
} else if ((ldef = self.variables.get(def.name)) !== def) {
if (ldef && root === segment) references[ldef.id] = false;
return references[def.id] = false;
- } else if (compressor.exposed(def) || sym.name == "arguments" || sym.name == "await") {
+ } else if (compressor.exposed(def) || NO_MERGE[sym.name]) {
return references[def.id] = false;
} else {
var refs = declarations.get(def.id) || [];
node_version: ">=4"
}
+issue_4454_1: {
+ rename = false
+ options = {
+ merge_vars: true,
+ }
+ input: {
+ function f(a) {
+ (function*(b = console.log(a)) {})();
+ var yield = 42..toString();
+ console.log(yield);
+ }
+ f("PASS");
+ }
+ expect: {
+ function f(a) {
+ (function*(b = console.log(a)) {})();
+ var yield = 42..toString();
+ console.log(yield);
+ }
+ f("PASS");
+ }
+ expect_stdout: [
+ "PASS",
+ "42",
+ ]
+ node_version: ">=6"
+}
+
+issue_4454_2: {
+ rename = true
+ options = {
+ merge_vars: true,
+ }
+ input: {
+ function f(a) {
+ (function*(b = console.log(a)) {})();
+ var yield = 42..toString();
+ console.log(yield);
+ }
+ f("PASS");
+ }
+ expect: {
+ function f(b) {
+ (function*(c = console.log(b)) {})();
+ var b = 42..toString();
+ console.log(b);
+ }
+ f("PASS");
+ }
+ expect_stdout: [
+ "PASS",
+ "42",
+ ]
+ node_version: ">=6"
+}
+
issue_4618: {
options = {
functions: true,