945 lines
19 KiB
JavaScript
945 lines
19 KiB
JavaScript
dead_code_1: {
|
|
options = {
|
|
dead_code: true
|
|
};
|
|
input: {
|
|
function f() {
|
|
a();
|
|
b();
|
|
x = 10;
|
|
return;
|
|
if (x) {
|
|
y();
|
|
}
|
|
}
|
|
}
|
|
expect: {
|
|
function f() {
|
|
a();
|
|
b();
|
|
x = 10;
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
dead_code_2_should_warn: {
|
|
options = {
|
|
dead_code: true
|
|
};
|
|
input: {
|
|
function f() {
|
|
g();
|
|
x = 10;
|
|
throw new Error("foo");
|
|
// completely discarding the `if` would introduce some
|
|
// bugs. UglifyJS v1 doesn't deal with this issue; in v2
|
|
// we copy any declarations to the upper scope.
|
|
if (x) {
|
|
y();
|
|
var x;
|
|
function g(){};
|
|
// but nested declarations should not be kept.
|
|
(function(){
|
|
var q;
|
|
function y(){};
|
|
})();
|
|
}
|
|
}
|
|
f();
|
|
}
|
|
expect: {
|
|
function f() {
|
|
g();
|
|
x = 10;
|
|
throw new Error("foo");
|
|
var x;
|
|
function g(){};
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|
}
|
|
f();
|
|
}
|
|
expect_stdout: true
|
|
node_version: "<=4"
|
|
}
|
|
|
|
dead_code_constant_boolean_should_warn_more: {
|
|
options = {
|
|
dead_code : true,
|
|
loops : true,
|
|
booleans : true,
|
|
conditionals : true,
|
|
evaluate : true,
|
|
side_effects : true,
|
|
};
|
|
input: {
|
|
while (!((foo && bar) || (x + "0"))) {
|
|
console.log("unreachable");
|
|
var foo;
|
|
function bar() {}
|
|
}
|
|
for (var x = 10, y; x && (y || x) && (!typeof x); ++x) {
|
|
asdf();
|
|
foo();
|
|
var moo;
|
|
}
|
|
bar();
|
|
}
|
|
expect: {
|
|
var foo;
|
|
function bar() {}
|
|
// nothing for the while
|
|
// as for the for, it should keep:
|
|
var moo;
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|
var x = 10, y;
|
|
bar();
|
|
}
|
|
expect_stdout: true
|
|
node_version: "<=4"
|
|
}
|
|
|
|
try_catch_finally: {
|
|
options = {
|
|
conditionals: true,
|
|
dead_code: true,
|
|
evaluate: true,
|
|
passes: 2,
|
|
side_effects: true,
|
|
}
|
|
input: {
|
|
var a = 1;
|
|
!function() {
|
|
try {
|
|
if (false) throw x;
|
|
} catch (a) {
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|
var a = 2;
|
|
console.log("FAIL");
|
|
} finally {
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|
a = 3;
|
|
console.log("PASS");
|
|
}
|
|
}();
|
|
try {
|
|
console.log(a);
|
|
} finally {
|
|
}
|
|
}
|
|
expect: {
|
|
var a = 1;
|
|
!function() {
|
|
var a;
|
|
a = 3;
|
|
console.log("PASS");
|
|
}();
|
|
try {
|
|
console.log(a);
|
|
} finally {
|
|
}
|
|
}
|
|
expect_stdout: [
|
|
"PASS",
|
|
"1",
|
|
]
|
|
}
|
|
|
|
accessor: {
|
|
options = {
|
|
side_effects: true,
|
|
}
|
|
input: {
|
|
({
|
|
get a() {},
|
|
set a(v){
|
|
this.b = 2;
|
|
},
|
|
b: 1
|
|
});
|
|
}
|
|
expect: {}
|
|
}
|
|
|
|
issue_2233_1: {
|
|
options = {
|
|
pure_getters: "strict",
|
|
side_effects: true,
|
|
unsafe: true,
|
|
}
|
|
input: {
|
|
Array.isArray;
|
|
Boolean;
|
|
console.log;
|
|
Date;
|
|
decodeURI;
|
|
decodeURIComponent;
|
|
encodeURI;
|
|
encodeURIComponent;
|
|
Error.name;
|
|
escape;
|
|
eval;
|
|
EvalError;
|
|
Function.length;
|
|
isFinite;
|
|
isNaN;
|
|
JSON;
|
|
Math.random;
|
|
Number.isNaN;
|
|
parseFloat;
|
|
parseInt;
|
|
RegExp;
|
|
Object.defineProperty;
|
|
String.fromCharCode;
|
|
RangeError;
|
|
ReferenceError;
|
|
SyntaxError;
|
|
TypeError;
|
|
unescape;
|
|
URIError;
|
|
}
|
|
expect: {}
|
|
expect_stdout: true
|
|
}
|
|
|
|
global_timeout_and_interval_symbols: {
|
|
options = {
|
|
pure_getters: "strict",
|
|
side_effects: true,
|
|
unsafe: true,
|
|
}
|
|
input: {
|
|
// These global symbols do not exist in the test sandbox
|
|
// and must be tested separately.
|
|
clearInterval;
|
|
clearTimeout;
|
|
setInterval;
|
|
setTimeout;
|
|
}
|
|
expect: {}
|
|
}
|
|
|
|
issue_2233_2: {
|
|
options = {
|
|
pure_getters: "strict",
|
|
reduce_funcs: true,
|
|
reduce_vars: true,
|
|
side_effects: true,
|
|
unsafe: true,
|
|
unused: true,
|
|
}
|
|
input: {
|
|
var RegExp;
|
|
Array.isArray;
|
|
RegExp;
|
|
UndeclaredGlobal;
|
|
function foo() {
|
|
var Number;
|
|
AnotherUndeclaredGlobal;
|
|
Math.sin;
|
|
Number.isNaN;
|
|
}
|
|
}
|
|
expect: {
|
|
var RegExp;
|
|
UndeclaredGlobal;
|
|
function foo() {
|
|
var Number;
|
|
AnotherUndeclaredGlobal;
|
|
Number.isNaN;
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|
}
|
|
}
|
|
}
|
|
|
|
issue_2233_3: {
|
|
options = {
|
|
pure_getters: "strict",
|
|
reduce_funcs: true,
|
|
reduce_vars: true,
|
|
side_effects: true,
|
|
toplevel: true,
|
|
unsafe: true,
|
|
unused: true,
|
|
}
|
|
input: {
|
|
var RegExp;
|
|
Array.isArray;
|
|
RegExp;
|
|
UndeclaredGlobal;
|
|
function foo() {
|
|
var Number;
|
|
AnotherUndeclaredGlobal;
|
|
Math.sin;
|
|
Number.isNaN;
|
|
}
|
|
}
|
|
expect: {
|
|
UndeclaredGlobal;
|
|
}
|
|
}
|
|
|
|
global_fns: {
|
|
options = {
|
|
side_effects: true,
|
|
unsafe: true,
|
|
}
|
|
input: {
|
|
Boolean(1, 2);
|
|
decodeURI(1, 2);
|
|
decodeURIComponent(1, 2);
|
|
Date(1, 2);
|
|
encodeURI(1, 2);
|
|
encodeURIComponent(1, 2);
|
|
Error(1, 2);
|
|
escape(1, 2);
|
|
EvalError(1, 2);
|
|
isFinite(1, 2);
|
|
isNaN(1, 2);
|
|
Number(1, 2);
|
|
Object(1, 2);
|
|
parseFloat(1, 2);
|
|
parseInt(1, 2);
|
|
RangeError(1, 2);
|
|
ReferenceError(1, 2);
|
|
String(1, 2);
|
|
SyntaxError(1, 2);
|
|
TypeError(1, 2);
|
|
unescape(1, 2);
|
|
URIError(1, 2);
|
|
try {
|
|
Function(1, 2);
|
|
} catch (e) {
|
|
console.log(e.name);
|
|
}
|
|
try {
|
|
RegExp(1, 2);
|
|
} catch (e) {
|
|
console.log(e.name);
|
|
}
|
|
try {
|
|
Array(NaN);
|
|
} catch (e) {
|
|
console.log(e.name);
|
|
}
|
|
}
|
|
expect: {
|
|
try {
|
|
Function(1, 2);
|
|
} catch (e) {
|
|
console.log(e.name);
|
|
}
|
|
try {
|
|
RegExp(1, 2);
|
|
} catch (e) {
|
|
console.log(e.name);
|
|
}
|
|
try {
|
|
Array(NaN);
|
|
} catch (e) {
|
|
console.log(e.name);
|
|
}
|
|
}
|
|
expect_stdout: [
|
|
"SyntaxError",
|
|
"SyntaxError",
|
|
"RangeError",
|
|
]
|
|
}
|
|
|
|
collapse_vars_assignment: {
|
|
options = {
|
|
collapse_vars: true,
|
|
dead_code: true,
|
|
passes: 2,
|
|
unused: true,
|
|
}
|
|
input: {
|
|
function f0(c) {
|
|
var a = 3 / c;
|
|
return a = a;
|
|
}
|
|
}
|
|
expect: {
|
|
function f0(c) {
|
|
return 3 / c;
|
|
}
|
|
}
|
|
}
|
|
|
|
collapse_vars_lvalues_drop_assign: {
|
|
options = {
|
|
collapse_vars: true,
|
|
dead_code: true,
|
|
unused: true,
|
|
}
|
|
input: {
|
|
function f0(x) { var i = ++x; return x += i; }
|
|
function f1(x) { var a = (x -= 3); return x += a; }
|
|
function f2(x) { var z = x, a = ++z; return z += a; }
|
|
}
|
|
expect: {
|
|
function f0(x) { var i = ++x; return x + i; }
|
|
function f1(x) { var a = (x -= 3); return x + a; }
|
|
function f2(x) { var z = x, a = ++z; return z + a; }
|
|
}
|
|
}
|
|
|
|
collapse_vars_misc1: {
|
|
options = {
|
|
collapse_vars: true,
|
|
dead_code: true,
|
|
unused: true,
|
|
}
|
|
input: {
|
|
function f10(x) { var a = 5, b = 3; return a += b; }
|
|
function f11(x) { var a = 5, b = 3; return a += --b; }
|
|
}
|
|
expect: {
|
|
function f10(x) { return 5 + 3; }
|
|
function f11(x) { var b = 3; return 5 + --b; }
|
|
}
|
|
}
|
|
|
|
return_assignment: {
|
|
options = {
|
|
dead_code: true,
|
|
unused: true,
|
|
}
|
|
input: {
|
|
function f1(a, b, c) {
|
|
return a = x(), b = y(), b = a && (c >>= 5);
|
|
}
|
|
function f2() {
|
|
return e = x();
|
|
}
|
|
function f3(e) {
|
|
return e = x();
|
|
}
|
|
function f4() {
|
|
var e;
|
|
return e = x();
|
|
}
|
|
function f5(a) {
|
|
try {
|
|
return a = x();
|
|
} catch (b) {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f6(a) {
|
|
try {
|
|
return a = x();
|
|
} finally {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function y() {
|
|
console.log("y");
|
|
}
|
|
function test(inc) {
|
|
var counter = 0;
|
|
x = function() {
|
|
counter += inc;
|
|
if (inc < 0) throw counter;
|
|
return counter;
|
|
};
|
|
[ f1, f2, f3, f4, f5, f6 ].forEach(function(f, i) {
|
|
e = null;
|
|
try {
|
|
i += 1;
|
|
console.log("result " + f(10 * i, 100 * i, 1000 * i));
|
|
} catch (x) {
|
|
console.log("caught " + x);
|
|
}
|
|
if (null !== e) console.log("e: " + e);
|
|
});
|
|
}
|
|
var x, e;
|
|
test(1);
|
|
test(-1);
|
|
}
|
|
expect: {
|
|
function f1(a, b, c) {
|
|
return a = x(), y(), a && (c >> 5);
|
|
}
|
|
function f2() {
|
|
return e = x();
|
|
}
|
|
function f3(e) {
|
|
return x();
|
|
}
|
|
function f4() {
|
|
return x();
|
|
}
|
|
function f5(a) {
|
|
try {
|
|
return x();
|
|
} catch (b) {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f6(a) {
|
|
try {
|
|
return a = x();
|
|
} finally {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function y() {
|
|
console.log("y");
|
|
}
|
|
function test(inc) {
|
|
var counter = 0;
|
|
x = function() {
|
|
counter += inc;
|
|
if (inc < 0) throw counter;
|
|
return counter;
|
|
};
|
|
[ f1, f2, f3, f4, f5, f6 ].forEach(function(f, i) {
|
|
e = null;
|
|
try {
|
|
i += 1;
|
|
console.log("result " + f(10 * i, 100 * i, 1000 * i));
|
|
} catch (x) {
|
|
console.log("caught " + x);
|
|
}
|
|
if (null !== e) console.log("e: " + e);
|
|
});
|
|
}
|
|
var x, e;
|
|
test(1);
|
|
test(-1);
|
|
}
|
|
expect_stdout: [
|
|
"y",
|
|
"result 31",
|
|
"result 2",
|
|
"e: 2",
|
|
"result 3",
|
|
"result 4",
|
|
"result 5",
|
|
"6",
|
|
"result 6",
|
|
"caught -1",
|
|
"caught -2",
|
|
"caught -3",
|
|
"caught -4",
|
|
"50",
|
|
"result undefined",
|
|
"60",
|
|
"caught -6",
|
|
]
|
|
}
|
|
|
|
throw_assignment: {
|
|
options = {
|
|
dead_code: true,
|
|
unused: true,
|
|
}
|
|
input: {
|
|
function f1() {
|
|
throw a = x();
|
|
}
|
|
function f2(a) {
|
|
throw a = x();
|
|
}
|
|
function f3() {
|
|
var a;
|
|
throw a = x();
|
|
}
|
|
function f4() {
|
|
try {
|
|
throw a = x();
|
|
} catch (b) {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f5(a) {
|
|
try {
|
|
throw a = x();
|
|
} catch (b) {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f6() {
|
|
var a;
|
|
try {
|
|
throw a = x();
|
|
} catch (b) {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f7() {
|
|
try {
|
|
throw a = x();
|
|
} finally {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f8(a) {
|
|
try {
|
|
throw a = x();
|
|
} finally {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f9() {
|
|
var a;
|
|
try {
|
|
throw a = x();
|
|
} finally {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function test(inc) {
|
|
var counter = 0;
|
|
x = function() {
|
|
counter += inc;
|
|
if (inc < 0) throw counter;
|
|
return counter;
|
|
};
|
|
[ f1, f2, f3, f4, f5, f6, f7, f8, f9 ].forEach(function(f, i) {
|
|
a = null;
|
|
try {
|
|
f(10 * (1 + i));
|
|
} catch (x) {
|
|
console.log("caught " + x);
|
|
}
|
|
if (null !== a) console.log("a: " + a);
|
|
});
|
|
}
|
|
var x, a;
|
|
test(1);
|
|
test(-1);
|
|
}
|
|
expect: {
|
|
function f1() {
|
|
throw a = x();
|
|
}
|
|
function f2(a) {
|
|
throw x();
|
|
}
|
|
function f3() {
|
|
throw x();
|
|
}
|
|
function f4() {
|
|
try {
|
|
throw a = x();
|
|
} catch (b) {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f5(a) {
|
|
try {
|
|
throw a = x();
|
|
} catch (b) {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f6() {
|
|
var a;
|
|
try {
|
|
throw a = x();
|
|
} catch (b) {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f7() {
|
|
try {
|
|
throw a = x();
|
|
} finally {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f8(a) {
|
|
try {
|
|
throw a = x();
|
|
} finally {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function f9() {
|
|
var a;
|
|
try {
|
|
throw a = x();
|
|
} finally {
|
|
console.log(a);
|
|
}
|
|
}
|
|
function test(inc) {
|
|
var counter = 0;
|
|
x = function() {
|
|
counter += inc;
|
|
if (inc < 0) throw counter;
|
|
return counter;
|
|
};
|
|
[ f1, f2, f3, f4, f5, f6, f7, f8, f9 ].forEach(function(f, i) {
|
|
a = null;
|
|
try {
|
|
f(10 * (1 + i));
|
|
} catch (x) {
|
|
console.log("caught " + x);
|
|
}
|
|
if (null !== a) console.log("a: " + a);
|
|
});
|
|
}
|
|
var x, a;
|
|
test(1);
|
|
test(-1);
|
|
}
|
|
expect_stdout: [
|
|
"caught 1",
|
|
"a: 1",
|
|
"caught 2",
|
|
"caught 3",
|
|
"4",
|
|
"a: 4",
|
|
"5",
|
|
"6",
|
|
"7",
|
|
"caught 7",
|
|
"a: 7",
|
|
"8",
|
|
"caught 8",
|
|
"9",
|
|
"caught 9",
|
|
"caught -1",
|
|
"caught -2",
|
|
"caught -3",
|
|
"null",
|
|
"50",
|
|
"undefined",
|
|
"null",
|
|
"caught -7",
|
|
"80",
|
|
"caught -8",
|
|
"undefined",
|
|
"caught -9",
|
|
]
|
|
}
|
|
|
|
issue_2597: {
|
|
options = {
|
|
dead_code: true,
|
|
}
|
|
input: {
|
|
function f(b) {
|
|
try {
|
|
try {
|
|
throw "foo";
|
|
} catch (e) {
|
|
return b = true;
|
|
}
|
|
} finally {
|
|
b && (a = "PASS");
|
|
}
|
|
}
|
|
var a = "FAIL";
|
|
f();
|
|
console.log(a);
|
|
}
|
|
expect: {
|
|
function f(b) {
|
|
try {
|
|
try {
|
|
throw "foo";
|
|
} catch (e) {
|
|
return b = true;
|
|
}
|
|
} finally {
|
|
b && (a = "PASS");
|
|
}
|
|
}
|
|
var a = "FAIL";
|
|
f();
|
|
console.log(a);
|
|
}
|
|
expect_stdout: "PASS"
|
|
}
|
|
|
|
issue_2666: {
|
|
options = {
|
|
dead_code: true,
|
|
}
|
|
input: {
|
|
function f(a) {
|
|
return a = {
|
|
p: function() {
|
|
return a;
|
|
}
|
|
};
|
|
}
|
|
console.log(typeof f().p());
|
|
}
|
|
expect: {
|
|
function f(a) {
|
|
return a = {
|
|
p: function() {
|
|
return a;
|
|
}
|
|
};
|
|
}
|
|
console.log(typeof f().p());
|
|
}
|
|
expect_stdout: "object"
|
|
}
|
|
|
|
issue_2692: {
|
|
options = {
|
|
dead_code: true,
|
|
reduce_vars: false,
|
|
}
|
|
input: {
|
|
function f(a) {
|
|
return a = g;
|
|
function g() {
|
|
return a;
|
|
}
|
|
}
|
|
console.log(typeof f()());
|
|
}
|
|
expect: {
|
|
function f(a) {
|
|
return a = g;
|
|
function g() {
|
|
return a;
|
|
}
|
|
}
|
|
console.log(typeof f()());
|
|
}
|
|
expect_stdout: "function"
|
|
}
|
|
|
|
issue_2701: {
|
|
options = {
|
|
dead_code: true,
|
|
inline: false,
|
|
}
|
|
input: {
|
|
function f(a) {
|
|
return a = function() {
|
|
return function() {
|
|
return a;
|
|
};
|
|
}();
|
|
}
|
|
console.log(typeof f()());
|
|
}
|
|
expect: {
|
|
function f(a) {
|
|
return a = function() {
|
|
return function() {
|
|
return a;
|
|
};
|
|
}();
|
|
}
|
|
console.log(typeof f()());
|
|
}
|
|
expect_stdout: "function"
|
|
}
|
|
|
|
issue_2749: {
|
|
options = {
|
|
dead_code: true,
|
|
inline: true,
|
|
toplevel: true,
|
|
unused: true,
|
|
}
|
|
input: {
|
|
var a = 2, c = "PASS";
|
|
while (a--)
|
|
(function() {
|
|
return b ? c = "FAIL" : b = 1;
|
|
try {
|
|
} catch (b) {
|
|
var b;
|
|
}
|
|
})();
|
|
console.log(c);
|
|
}
|
|
expect: {
|
|
var a = 2, c = "PASS";
|
|
while (a--)
|
|
b = void 0, b ? c = "FAIL" : b = 1;
|
|
var b;
|
|
console.log(c);
|
|
}
|
|
expect_stdout: "PASS"
|
|
}
|
|
|
|
unsafe_builtin: {
|
|
options = {
|
|
side_effects: true,
|
|
unsafe: true,
|
|
}
|
|
input: {
|
|
(!w).constructor(x);
|
|
Math.abs(y);
|
|
[ 1, 2, z ].valueOf();
|
|
}
|
|
expect: {
|
|
w, x;
|
|
y;
|
|
z;
|
|
}
|
|
}
|
|
|
|
issue_2860_1: {
|
|
options = {
|
|
dead_code: true,
|
|
evaluate: true,
|
|
reduce_vars: true,
|
|
}
|
|
input: {
|
|
console.log(function(a) {
|
|
return a ^= 1;
|
|
}());
|
|
}
|
|
expect: {
|
|
console.log(function(a) {
|
|
return 1 ^ a;
|
|
}());
|
|
}
|
|
expect_stdout: "1"
|
|
}
|
|
|
|
issue_2860_2: {
|
|
options = {
|
|
dead_code: true,
|
|
evaluate: true,
|
|
inline: true,
|
|
passes: 2,
|
|
reduce_vars: true,
|
|
}
|
|
input: {
|
|
console.log(function(a) {
|
|
return a ^= 1;
|
|
}());
|
|
}
|
|
expect: {
|
|
console.log(1);
|
|
}
|
|
expect_stdout: "1"
|
|
}
|
|
|
|
issue_2929: {
|
|
options = {
|
|
dead_code: true,
|
|
}
|
|
input: {
|
|
console.log(function(a) {
|
|
try {
|
|
return null.p = a = 1;
|
|
} catch (e) {
|
|
return a ? "PASS" : "FAIL";
|
|
}
|
|
}());
|
|
}
|
|
expect: {
|
|
console.log(function(a) {
|
|
try {
|
|
return null.p = a = 1;
|
|
} catch (e) {
|
|
return a ? "PASS" : "FAIL";
|
|
}
|
|
}());
|
|
}
|
|
expect_stdout: "PASS"
|
|
}
|