collapse_vars_1: { options = { collapse_vars: true, } input: { var a; [ ...a = "PASS", "PASS"].slice(); console.log(a); } expect: { var a; [ ...a = "PASS", "PASS"].slice(); console.log(a); } expect_stdout: "PASS" node_version: ">=6" } collapse_vars_2: { options = { collapse_vars: true, } input: { var a = "FAIL"; try { a = "PASS"; [ ...42, "PASS"].slice(); } catch (e) { console.log(a); } } expect: { var a = "FAIL"; try { a = "PASS"; [ ...42, "PASS"].slice(); } catch (e) { console.log(a); } } expect_stdout: "PASS" node_version: ">=6" } collapse_vars_3: { options = { collapse_vars: true, } input: { var a = "FAIL"; try { [ ...(a = "PASS", 42), "PASS"].slice(); } catch (e) { console.log(a); } } expect: { var a = "FAIL"; try { [ ...(a = "PASS", 42), "PASS"].slice(); } catch (e) { console.log(a); } } expect_stdout: "PASS" node_version: ">=6" } collapse_vars_4: { options = { collapse_vars: true, unused: true, } input: { console.log(function(a) { return a; }(...[ "PASS", "FAIL" ])); } expect: { console.log(function(a) { return a; }(...[ "PASS", "FAIL" ])); } expect_stdout: "PASS" node_version: ">=6" } dont_inline: { options = { inline: true, } input: { console.log(function(a) { return a; }(...[ "PASS", "FAIL" ])); } expect: { console.log(function(a) { return a; }(...[ "PASS", "FAIL" ])); } expect_stdout: "PASS" node_version: ">=6" } do_inline: { options = { inline: true, spread: true, } input: { console.log(function(a) { return a; }(...[ "PASS", "FAIL" ])); } expect: { console.log(("FAIL", "PASS")); } expect_stdout: "PASS" node_version: ">=6" } drop_empty_call_1: { options = { side_effects: true, } input: { try { (function() {})(...null); } catch (e) { console.log("PASS"); } } expect: { try { [ ...null ]; } catch (e) { console.log("PASS"); } } expect_stdout: "PASS" node_version: ">=6" } drop_empty_call_2: { options = { side_effects: true, spread: true, } input: { (function() {})(...[ console.log("PASS") ]); } expect: { console.log("PASS"); } expect_stdout: "PASS" node_version: ">=6" } convert_hole: { options = { spread: true, } input: { console.log(...[ "PASS", , 42 ]); } expect: { console.log("PASS", void 0, 42); } expect_stdout: "PASS undefined 42" node_version: ">=6" } keep_property_access: { options = { properties: true, side_effects: true, } input: { console.log(function() { return [ ..."foo" ][0]; }()); } expect: { console.log(function() { return [ ..."foo" ][0]; }()); } expect_stdout: "f" node_version: ">=6" } keep_fargs: { options = { keep_fargs: false, unused: true, } input: { var a = [ "PASS" ]; (function(b, c) { console.log(c); })(console, ...a); } expect: { var a = [ "PASS" ]; (function(b, c) { console.log(c); })(console, ...a); } expect_stdout: "PASS" node_version: ">=6" } reduce_vars_1: { options = { reduce_vars: true, unused: true, } input: { console.log(function(b, c) { return c ? "PASS" : "FAIL"; }(..."foo")); } expect: { console.log(function(b, c) { return c ? "PASS" : "FAIL"; }(..."foo")); } expect_stdout: "PASS" node_version: ">=6" } reduce_vars_2: { options = { conditionals: true, evaluate: true, reduce_vars: true, } input: { console.log(function(b, c) { return c ? "PASS" : "FAIL"; }(..."foo")); } expect: { console.log(function(b, c) { return c ? "PASS" : "FAIL"; }(..."foo")); } expect_stdout: "PASS" node_version: ">=6" } convert_setter: { options = { objects: true, spread: true, } input: { var o = { ...{ set PASS(v) {}, }, }; for (var k in o) console.log(k, o[k]); } expect: { var o = { PASS: void 0, }; for (var k in o) console.log(k, o[k]); } expect_stdout: "PASS undefined" node_version: ">=8" } keep_getter_1: { options = { side_effects: true, } input: { ({ ...{ get p() { console.log("PASS"); }, }, get q() { console.log("FAIL"); }, }); } expect: { ({ ...{ get p() { console.log("PASS"); }, }, }); } expect_stdout: "PASS" node_version: ">=8" } keep_getter_2: { options = { side_effects: true, } input: { ({ ...(console.log("foo"), { get p() { console.log("bar"); }, }), }); } expect: { ({ ...(console.log("foo"), { get p() { console.log("bar"); }, }), }); } expect_stdout: [ "foo", "bar", ] node_version: ">=8" } keep_getter_3: { options = { side_effects: true, } input: { ({ ...function() { return { get p() { console.log("PASS"); }, }; }(), }); } expect: { ({ ...function() { return { get p() { console.log("PASS"); }, }; }(), }); } expect_stdout: "PASS" node_version: ">=8" } keep_getter_4: { options = { reduce_vars: true, side_effects: true, toplevel: true, } input: { var o = { get p() { console.log("PASS"); }, }; ({ q: o, ...o, }); } expect: { var o = { get p() { console.log("PASS"); }, }; ({ ...o, }); } expect_stdout: "PASS" node_version: ">=8" } keep_accessor: { options = { objects: true, spread: true, } input: { var o = { ...{ get p() { console.log("GET"); return this.r; }, set q(v) { console.log("SET", v); }, r: 42, }, r: null, }; for (var k in o) console.log(k, o[k]); } expect: { var o = { ...{ get p() { console.log("GET"); return this.r; }, set q(v) { console.log("SET", v); }, r: 42, }, r: null, }; for (var k in o) console.log(k, o[k]); } expect_stdout: [ "GET", "p 42", "q undefined", "r null", ] node_version: ">=8" } object_key_order_1: { options = { objects: true, spread: true, } input: { var o = { ...{}, a: 1, b: 2, a: 3, }; for (var k in o) console.log(k, o[k]); } expect: { var o = { a: (1, 3), b: 2, }; for (var k in o) console.log(k, o[k]); } expect_stdout: [ "a 3", "b 2", ] node_version: ">=8 <=10" } object_key_order_2: { options = { objects: true, spread: true, } input: { var o = { a: 1, ...{}, b: 2, a: 3, }; for (var k in o) console.log(k, o[k]); } expect: { var o = { a: (1, 3), b: 2, }; for (var k in o) console.log(k, o[k]); } expect_stdout: [ "a 3", "b 2", ] node_version: ">=8" } object_key_order_3: { options = { objects: true, spread: true, } input: { var o = { a: 1, b: 2, ...{}, a: 3, }; for (var k in o) console.log(k, o[k]); } expect: { var o = { a: (1, 3), b: 2, }; for (var k in o) console.log(k, o[k]); } expect_stdout: [ "a 3", "b 2", ] node_version: ">=8" } object_key_order_4: { options = { objects: true, spread: true, } input: { var o = { a: 1, b: 2, a: 3, ...{}, }; for (var k in o) console.log(k, o[k]); } expect: { var o = { a: (1, 3), b: 2, }; for (var k in o) console.log(k, o[k]); } expect_stdout: [ "a 3", "b 2", ] node_version: ">=8" } object_spread_array: { options = { objects: true, spread: true, } input: { var o = { ...[ "foo", "bar" ], }; for (var k in o) console.log(k, o[k]); } expect: { var o = { ...[ "foo", "bar" ], }; for (var k in o) console.log(k, o[k]); } expect_stdout: [ "0 foo", "1 bar", ] node_version: ">=8" } object_spread_string: { options = { objects: true, spread: true, } input: { var o = { ..."foo", }; for (var k in o) console.log(k, o[k]); } expect: { var o = { ..."foo", }; for (var k in o) console.log(k, o[k]); } expect_stdout: [ "0 f", "1 o", "2 o", ] node_version: ">=8" } unused_var_side_effects: { options = { unused: true, } input: { (function f(a) { var b = { ...a, }; })({ get p() { console.log("PASS"); }, }); } expect: { (function(a) { ({ ...a, }); })({ get p() { console.log("PASS"); }, }); } expect_stdout: "PASS" node_version: ">=8" } issue_4329: { options = { objects: true, spread: true, } input: { console.log({ ...{ get 0() { return "FAIL"; }, ...{ 0: "PASS", }, }, }[0]); } expect: { console.log({ ...{ get 0() { return "FAIL"; }, [0]: "PASS", }, }[0]); } expect_stdout: "PASS" node_version: ">=8" } issue_4331: { options = { collapse_vars: true, toplevel: true, } input: { var a = "PASS", b; console, b = a; (function() { a++; })(...a); console.log(b); } expect: { var a = "PASS", b; console; (function() { a++; })(...b = a); console.log(b); } expect_stdout: "PASS" node_version: ">=6" } issue_4342: { options = { side_effects: true, } input: { try { new function() {}(...42); } catch (e) { console.log("PASS"); } } expect: { try { [ ...42 ]; } catch (e) { console.log("PASS"); } } expect_stdout: "PASS" node_version: ">=6" } issue_4345: { options = { objects: true, spread: true, } input: { console.log({ ...{ get 42() { return "FAIL"; }, ...{}, 42: "PASS", }, }[42]); } expect: { console.log({ ...{ get 42() { return "FAIL"; }, [42]: "PASS", }, }[42]); } expect_stdout: "PASS" node_version: ">=8" } issue_4361: { options = { reduce_vars: true, unused: true, } input: { console.log(function() { var a = console.log("foo"); console; var b = { ...a, }; }()); } expect: { console.log(function() { var a = console.log("foo"); console; ({ ...a, }); }()); } expect_stdout: [ "foo", "undefined", ] node_version: ">=8" } issue_4363: { options = { objects: true, spread: true, } input: { ({ ...{ set [console.log("PASS")](v) {}, }, }); } expect: { ({ [console.log("PASS")]: void 0, }); } expect_stdout: "PASS" node_version: ">=8" }