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Merge branch 'master' into harmony-v2.8.17

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This commit is contained in:
alexlamsl
2017-03-28 22:03:46 +08:00
parent 6a54de79b5 6ab3224c0d
commit 1e2b0aaa04
30 changed files with 2842 additions and 232 deletions
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71
test/compress/collapse_vars.js
View File

@@ -894,7 +894,8 @@ collapse_vars_unary: {
}
expect: {
function f0(o, p) {
delete o[p];
var x = o[p];
delete x;
}
function f1(n) {
return n > +!!n
@@ -1621,3 +1622,71 @@ issue_1631_3: {
}
expect_stdout: "6"
}
var_side_effects_1: {
options = {
collapse_vars: true,
}
input: {
var print = console.log.bind(console);
function foo(x) {
var twice = x * 2;
print('Foo:', twice);
}
foo(10);
}
expect: {
var print = console.log.bind(console);
function foo(x) {
print('Foo:', 2 * x);
}
foo(10);
}
expect_stdout: true
}
var_side_effects_2: {
options = {
collapse_vars: true,
}
input: {
var print = console.log.bind(console);
function foo(x) {
var twice = x.y * 2;
print('Foo:', twice);
}
foo({ y: 10 });
}
expect: {
var print = console.log.bind(console);
function foo(x) {
var twice = 2 * x.y;
print('Foo:', twice);
}
foo({ y: 10 });
}
expect_stdout: true
}
var_side_effects_3: {
options = {
collapse_vars: true,
pure_getters: true,
}
input: {
var print = console.log.bind(console);
function foo(x) {
var twice = x.y * 2;
print('Foo:', twice);
}
foo({ y: 10 });
}
expect: {
var print = console.log.bind(console);
function foo(x) {
print('Foo:', 2 * x.y);
}
foo({ y: 10 });
}
expect_stdout: true
}

69
test/compress/conditionals.js
View File

@@ -893,3 +893,72 @@ equality_conditionals_true: {
}
expect_stdout: true
}
issue_1645_1: {
options = {
conditionals: true,
}
input: {
var a = 100, b = 10;
(b = a) ? a++ + (b += a) ? b += a : b += a : b ^= a;
console.log(a, b);
}
expect: {
var a = 100, b = 10;
(b = a) ? (a++ + (b += a), b += a) : b ^= a;
console.log(a,b);
}
expect_stdout: true
}
issue_1645_2: {
options = {
conditionals: true,
}
input: {
var a = 0;
function f() {
return a++;
}
f() ? a += 2 : a += 4;
console.log(a);
}
expect: {
var a = 0;
function f(){
return a++;
}
f() ? a += 2 : a += 4;
console.log(a);
}
expect_stdout: true
}
condition_symbol_matches_consequent: {
options = {
conditionals: true,
}
input: {
function foo(x, y) {
return x ? x : y;
}
function bar() {
return g ? g : h;
}
var g = 4;
var h = 5;
console.log(foo(3, null), foo(0, 7), foo(true, false), bar());
}
expect: {
function foo(x, y) {
return x || y;
}
function bar() {
return g || h;
}
var g = 4;
var h = 5;
console.log(foo(3, null), foo(0, 7), foo(true, false), bar());
}
expect_stdout: "3 7 true 4"
}

140
test/compress/drop-unused.js
View File

@@ -872,3 +872,143 @@ issue_1583: {
}
}
}
issue_1656: {
options = {
toplevel: true,
unused: true,
}
beautify = {
beautify: true,
}
input: {
for(var a=0;;);
}
expect_exact: "for (;;) ;"
}
issue_1709: {
options = {
unused: true,
}
input: {
console.log(
function x() {
var x = 1;
return x;
}(),
function y() {
const y = 2;
return y;
}(),
function z() {
function z() {}
return z;
}()
);
}
expect: {
console.log(
function() {
var x = 1;
return x;
}(),
function() {
const y = 2;
return y;
}(),
function() {
function z() {}
return z;
}()
);
}
expect_stdout: true
}
issue_1715_1: {
options = {
unused: true,
}
input: {
var a = 1;
function f() {
a++;
try {} catch (a) {
var a;
}
}
f();
console.log(a);
}
expect: {
var a = 1;
function f() {
a++;
try {} catch (a) {
var a;
}
}
f();
console.log(a);
}
expect_stdout: "1"
}
issue_1715_2: {
options = {
unused: true,
}
input: {
var a = 1;
function f() {
a++;
try {} catch (a) {
var a = 2;
}
}
f();
console.log(a);
}
expect: {
var a = 1;
function f() {
a++;
try {} catch (a) {
var a;
}
}
f();
console.log(a);
}
expect_stdout: "1"
}
issue_1715_3: {
options = {
unused: true,
}
input: {
var a = 1;
function f() {
a++;
try {} catch (a) {
var a = 2 + x();
}
}
f();
console.log(a);
}
expect: {
var a = 1;
function f() {
a++;
try {} catch (a) {
var a = x();
}
}
f();
console.log(a);
}
expect_stdout: "1"
}

13
test/compress/evaluate.js
View File

@@ -883,3 +883,16 @@ unsafe_charAt_noop: {
);
}
}
issue_1649: {
options = {
evaluate: true,
}
input: {
console.log(-1 + -1);
}
expect: {
console.log(-2);
}
expect_stdout: "-2";
}

88
test/compress/issue-1639.js Normal file
View File

@@ -0,0 +1,88 @@
issue_1639_1: {
options = {
booleans: true,
cascade: true,
conditionals: true,
evaluate: true,
join_vars: true,
loops: true,
sequences: true,
side_effects: true,
}
input: {
var a = 100, b = 10;
var L1 = 5;
while (--L1 > 0) {
if ((--b), false) {
if (b) {
var ignore = 0;
}
}
}
console.log(a, b);
}
expect: {
for (var a = 100, b = 10, L1 = 5; --L1 > 0;)
if (--b, !1) var ignore = 0;
console.log(a, b);
}
expect_stdout: true
}
issue_1639_2: {
options = {
booleans: true,
cascade: true,
conditionals: true,
evaluate: true,
join_vars: true,
sequences: true,
side_effects: true,
}
input: {
var a = 100, b = 10;
function f19() {
if (++a, false)
if (a)
if (++a);
}
f19();
console.log(a, b);
}
expect: {
var a = 100, b = 10;
function f19() {
++a, 1;
}
f19(),
console.log(a, b);
}
expect_stdout: true
}
issue_1639_3: {
options = {
booleans: true,
cascade: true,
conditionals: true,
evaluate: true,
sequences: true,
side_effects: true,
}
input: {
var a = 100, b = 10;
a++ && false && a ? 0 : 0;
console.log(a, b);
}
expect: {
var a = 100, b = 10;
a++,
console.log(a, b);
}
expect_stdout: true
}

45
test/compress/issue-1656.js Normal file
View File

@@ -0,0 +1,45 @@
f7: {
options = {
booleans: true,
cascade: true,
collapse_vars: true,
comparisons: true,
conditionals: true,
dead_code: true,
drop_debugger: true,
evaluate: true,
hoist_funs: true,
if_return: true,
join_vars: true,
loops: true,
negate_iife: true,
passes: 3,
properties: true,
reduce_vars: true,
sequences: true,
side_effects: true,
toplevel: true,
unused: true,
}
beautify = {
beautify: true,
}
input: {
var a = 100, b = 10;
function f22464() {
var brake146670 = 5;
while (((b = a) ? !a : ~a ? null : b += a) && --brake146670 > 0) {
}
}
f22464();
console.log(a, b);
}
expect_exact: [
"var a = 100, b = 10;",
"",
"!function() {",
" for (;b = a, !1; ) ;",
"}(), console.log(a, b);",
]
expect_stdout: true
}

159
test/compress/issue-1673.js Normal file
View File

@@ -0,0 +1,159 @@
side_effects_catch: {
options = {
reduce_vars: true,
side_effects: true,
unused: true,
}
input: {
function f() {
function g() {
try {
throw 0;
} catch (e) {
console.log("PASS");
}
}
g();
}
f();
}
expect: {
function f() {
(function() {
try {
throw 0;
} catch (e) {
console.log("PASS");
}
})();
}
f();
}
expect_stdout: "PASS"
}
side_effects_else: {
options = {
reduce_vars: true,
side_effects: true,
unused: true,
}
input: {
function f(x) {
function g() {
if (x);
else console.log("PASS");
}
g();
}
f(0);
}
expect: {
function f(x) {
(function() {
if (x);
else console.log("PASS");
})();
}
f(0);
}
expect_stdout: "PASS"
}
side_effects_finally: {
options = {
reduce_vars: true,
side_effects: true,
unused: true,
}
input: {
function f() {
function g() {
try {
} catch (e) {
} finally {
console.log("PASS");
}
}
g();
}
f();
}
expect: {
function f() {
(function() {
try {
} catch (e) {
} finally {
console.log("PASS");
}
})();
}
f();
}
expect_stdout: "PASS"
}
side_effects_label: {
options = {
reduce_vars: true,
side_effects: true,
unused: true,
}
input: {
function f(x) {
function g() {
L: {
console.log("PASS");
break L;
}
}
g();
}
f(0);
}
expect: {
function f(x) {
(function() {
L: {
console.log("PASS");
break L;
}
})();
}
f(0);
}
expect_stdout: "PASS"
}
side_effects_switch: {
options = {
reduce_vars: true,
side_effects: true,
unused: true,
}
input: {
function f() {
function g() {
switch (0) {
default:
case console.log("PASS"):
}
}
g();
}
f();
}
expect: {
function f() {
(function() {
switch (0) {
default:
case console.log("PASS"):
}
})();
}
f();
}
expect_stdout: "PASS"
}

347
test/compress/issue-1704.js Normal file
View File

@@ -0,0 +1,347 @@
mangle_catch: {
options = {
screw_ie8: true,
toplevel: false,
}
mangle = {
screw_ie8: true,
toplevel: false,
}
input: {
var a = "FAIL";
try {
throw 1;
} catch (args) {
a = "PASS";
}
console.log(a);
}
expect_exact: 'var a="FAIL";try{throw 1}catch(o){a="PASS"}console.log(a);'
expect_stdout: "PASS"
}
mangle_catch_ie8: {
options = {
screw_ie8: false,
toplevel: false,
}
mangle = {
screw_ie8: false,
toplevel: false,
}
input: {
var a = "FAIL";
try {
throw 1;
} catch (args) {
a = "PASS";
}
console.log(a);
}
expect_exact: 'var a="FAIL";try{throw 1}catch(args){a="PASS"}console.log(a);'
expect_stdout: "PASS"
}
mangle_catch_var: {
options = {
screw_ie8: true,
toplevel: false,
}
mangle = {
screw_ie8: true,
toplevel: false,
}
input: {
var a = "FAIL";
try {
throw 1;
} catch (args) {
var a = "PASS";
}
console.log(a);
}
expect_exact: 'var a="FAIL";try{throw 1}catch(o){var a="PASS"}console.log(a);'
expect_stdout: "PASS"
}
mangle_catch_var_ie8: {
options = {
screw_ie8: false,
toplevel: false,
}
mangle = {
screw_ie8: false,
toplevel: false,
}
input: {
var a = "FAIL";
try {
throw 1;
} catch (args) {
var a = "PASS";
}
console.log(a);
}
expect_exact: 'var a="FAIL";try{throw 1}catch(args){var a="PASS"}console.log(a);'
expect_stdout: "PASS"
}
mangle_catch_toplevel: {
options = {
screw_ie8: true,
toplevel: true,
}
mangle = {
screw_ie8: true,
toplevel: true,
}
input: {
var a = "FAIL";
try {
throw 1;
} catch (args) {
a = "PASS";
}
console.log(a);
}
expect_exact: 'var o="FAIL";try{throw 1}catch(c){o="PASS"}console.log(o);'
expect_stdout: "PASS"
}
mangle_catch_ie8_toplevel: {
options = {
screw_ie8: false,
toplevel: true,
}
mangle = {
screw_ie8: false,
toplevel: true,
}
input: {
var a = "FAIL";
try {
throw 1;
} catch (args) {
a = "PASS";
}
console.log(a);
}
expect_exact: 'var o="FAIL";try{throw 1}catch(c){o="PASS"}console.log(o);'
expect_stdout: "PASS"
}
mangle_catch_var_toplevel: {
options = {
screw_ie8: true,
toplevel: true,
}
mangle = {
screw_ie8: true,
toplevel: true,
}
input: {
var a = "FAIL";
try {
throw 1;
} catch (args) {
var a = "PASS";
}
console.log(a);
}
expect_exact: 'var o="FAIL";try{throw 1}catch(r){var o="PASS"}console.log(o);'
expect_stdout: "PASS"
}
mangle_catch_var_ie8_toplevel: {
options = {
screw_ie8: false,
toplevel: true,
}
mangle = {
screw_ie8: false,
toplevel: true,
}
input: {
var a = "FAIL";
try {
throw 1;
} catch (args) {
var a = "PASS";
}
console.log(a);
}
expect_exact: 'var o="FAIL";try{throw 1}catch(r){var o="PASS"}console.log(o);'
expect_stdout: "PASS"
}
mangle_catch_redef_1: {
options = {
screw_ie8: true,
toplevel: false,
}
mangle = {
screw_ie8: true,
toplevel: false,
}
input: {
var a = "PASS";
try {
throw "FAIL1";
} catch (a) {
var a = "FAIL2";
}
console.log(a);
}
expect_exact: 'var a="PASS";try{throw"FAIL1"}catch(a){var a="FAIL2"}console.log(a);'
expect_stdout: "PASS"
}
mangle_catch_redef_1_ie8: {
options = {
screw_ie8: false,
toplevel: false,
}
mangle = {
screw_ie8: false,
toplevel: false,
}
input: {
var a = "PASS";
try {
throw "FAIL1";
} catch (a) {
var a = "FAIL2";
}
console.log(a);
}
expect_exact: 'var a="PASS";try{throw"FAIL1"}catch(a){var a="FAIL2"}console.log(a);'
expect_stdout: "PASS"
}
mangle_catch_redef_1_toplevel: {
options = {
screw_ie8: true,
toplevel: true,
}
mangle = {
screw_ie8: true,
toplevel: true,
}
input: {
var a = "PASS";
try {
throw "FAIL1";
} catch (a) {
var a = "FAIL2";
}
console.log(a);
}
expect_exact: 'var o="PASS";try{throw"FAIL1"}catch(o){var o="FAIL2"}console.log(o);'
expect_stdout: "PASS"
}
mangle_catch_redef_1_ie8_toplevel: {
options = {
screw_ie8: false,
toplevel: true,
}
mangle = {
screw_ie8: false,
toplevel: true,
}
input: {
var a = "PASS";
try {
throw "FAIL1";
} catch (a) {
var a = "FAIL2";
}
console.log(a);
}
expect_exact: 'var o="PASS";try{throw"FAIL1"}catch(o){var o="FAIL2"}console.log(o);'
expect_stdout: "PASS"
}
mangle_catch_redef_2: {
options = {
screw_ie8: true,
toplevel: false,
}
mangle = {
screw_ie8: true,
toplevel: false,
}
input: {
try {
throw "FAIL1";
} catch (a) {
var a = "FAIL2";
}
console.log(a);
}
expect_exact: 'try{throw"FAIL1"}catch(a){var a="FAIL2"}console.log(a);'
expect_stdout: "undefined"
}
mangle_catch_redef_2_ie8: {
options = {
screw_ie8: false,
toplevel: false,
}
mangle = {
screw_ie8: false,
toplevel: false,
}
input: {
try {
throw "FAIL1";
} catch (a) {
var a = "FAIL2";
}
console.log(a);
}
expect_exact: 'try{throw"FAIL1"}catch(a){var a="FAIL2"}console.log(a);'
expect_stdout: "undefined"
}
mangle_catch_redef_2_toplevel: {
options = {
screw_ie8: true,
toplevel: true,
}
mangle = {
screw_ie8: true,
toplevel: true,
}
input: {
try {
throw "FAIL1";
} catch (a) {
var a = "FAIL2";
}
console.log(a);
}
expect_exact: 'try{throw"FAIL1"}catch(o){var o="FAIL2"}console.log(o);'
expect_stdout: "undefined"
}
mangle_catch_redef_2_ie8_toplevel: {
options = {
screw_ie8: false,
toplevel: true,
}
mangle = {
screw_ie8: false,
toplevel: true,
}
input: {
try {
throw "FAIL1";
} catch (a) {
var a = "FAIL2";
}
console.log(a);
}
expect_exact: 'try{throw"FAIL1"}catch(o){var o="FAIL2"}console.log(o);'
expect_stdout: "undefined"
}

18
test/compress/loops.js
View File

@@ -440,3 +440,21 @@ issue_186_beautify_bracketize_ie8: {
'}',
]
}
issue_1648: {
options = {
join_vars: true,
loops: true,
passes: 2,
sequences: true,
unused: true,
}
input: {
function f() {
x();
var b = 1;
while (1);
}
}
expect_exact: "function f(){for(x();1;);}"
}

9
test/compress/negate-iife.js
View File

@@ -353,8 +353,9 @@ issue_1254_negate_iife_nested: {
issue_1288: {
options = {
negate_iife: true,
conditionals: true,
negate_iife: true,
side_effects: false,
};
input: {
if (w) ;
@@ -374,11 +375,11 @@ issue_1288: {
})(0);
}
expect: {
w || function f() {}();
x || function() {
w || !function f() {}();
x || !function() {
x = {};
}();
y ? function() {}() : function(z) {
y ? !function() {}() : !function(z) {
return z;
}(0);
}

15
test/compress/numbers.js
View File

@@ -153,3 +153,18 @@ evaluate_4: {
);
}
}
issue_1710: {
options = {
evaluate: true,
}
input: {
var x = {};
console.log((x += 1) + -x);
}
expect: {
var x = {};
console.log((x += 1) + -x);
}
expect_stdout: true
}

496
test/compress/reduce_vars.js
View File

@@ -425,7 +425,7 @@ iife_new: {
expect_stdout: true
}
multi_def: {
multi_def_1: {
options = {
evaluate: true,
reduce_vars: true,
@@ -435,7 +435,7 @@ multi_def: {
if (a)
var b = 1;
else
var b = 2
var b = 2;
console.log(b + 1);
}
}
@@ -444,7 +444,7 @@ multi_def: {
if (a)
var b = 1;
else
var b = 2
var b = 2;
console.log(b + 1);
}
}
@@ -479,6 +479,33 @@ multi_def_2: {
}
}
multi_def_3: {
options = {
evaluate: true,
reduce_vars: true,
}
input: {
function f(a) {
var b = 2;
if (a)
var b;
else
var b;
console.log(b + 1);
}
}
expect: {
function f(a) {
var b = 2;
if (a)
var b;
else
var b;
console.log(3);
}
}
}
use_before_var: {
options = {
evaluate: true,
@@ -1364,3 +1391,466 @@ issue_1606: {
}
}
}
issue_1670_1: {
options = {
comparisons: true,
conditionals: true,
evaluate: true,
dead_code: true,
reduce_vars: true,
unused: true,
}
input: {
(function f() {
switch (1) {
case 0:
var a = true;
break;
default:
if (typeof a === "undefined") console.log("PASS");
else console.log("FAIL");
}
})();
}
expect: {
(function() {
var a;
void 0 === a ? console.log("PASS") : console.log("FAIL");
})();
}
expect_stdout: "PASS"
}
issue_1670_2: {
options = {
conditionals: true,
evaluate: true,
dead_code: true,
passes: 2,
reduce_vars: true,
unused: true,
}
input: {
(function f() {
switch (1) {
case 0:
var a = true;
break;
default:
if (typeof a === "undefined") console.log("PASS");
else console.log("FAIL");
}
})();
}
expect: {
(function() {
console.log("PASS");
})();
}
expect_stdout: "PASS"
}
issue_1670_3: {
options = {
comparisons: true,
conditionals: true,
evaluate: true,
dead_code: true,
reduce_vars: true,
unused: true,
}
input: {
(function f() {
switch (1) {
case 0:
var a = true;
break;
case 1:
if (typeof a === "undefined") console.log("PASS");
else console.log("FAIL");
}
})();
}
expect: {
(function() {
var a;
void 0 === a ? console.log("PASS") : console.log("FAIL");
})();
}
expect_stdout: "PASS"
}
issue_1670_4: {
options = {
conditionals: true,
evaluate: true,
dead_code: true,
passes: 2,
reduce_vars: true,
unused: true,
}
input: {
(function f() {
switch (1) {
case 0:
var a = true;
break;
case 1:
if (typeof a === "undefined") console.log("PASS");
else console.log("FAIL");
}
})();
}
expect: {
(function() {
console.log("PASS");
})();
}
expect_stdout: "PASS"
}
issue_1670_5: {
options = {
dead_code: true,
evaluate: true,
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
(function(a) {
switch (1) {
case a:
console.log(a);
break;
default:
console.log(2);
break;
}
})(1);
}
expect: {
(function() {
console.log(1);
})();
}
expect_stdout: "1"
}
issue_1670_6: {
options = {
dead_code: true,
evaluate: true,
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
(function(a) {
switch (1) {
case a = 1:
console.log(a);
break;
default:
console.log(2);
break;
}
})(1);
}
expect: {
(function(a) {
switch (1) {
case a = 1:
console.log(a);
break;
default:
console.log(2);
}
})(1);
}
expect_stdout: "1"
}
unary_delete: {
options = {
evaluate: true,
reduce_vars: true,
unused: true,
}
input: {
var b = 10;
function f() {
var a;
if (delete a) b--;
}
f();
console.log(b);
}
expect: {
var b = 10;
function f() {
var a;
if (delete a) b--;
}
f();
console.log(b);
}
expect_stdout: true
}
redefine_arguments_1: {
options = {
evaluate: true,
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
function f() {
var arguments;
return typeof arguments;
}
function g() {
var arguments = 42;
return typeof arguments;
}
function h(x) {
var arguments = x;
return typeof arguments;
}
console.log(f(), g(), h());
}
expect: {
function f() {
var arguments;
return typeof arguments;
}
function g() {
return"number";
}
function h(x) {
var arguments = x;
return typeof arguments;
}
console.log(f(), g(), h());
}
expect_stdout: "object number undefined"
}
redefine_arguments_2: {
options = {
evaluate: true,
keep_fargs: false,
reduce_vars: true,
side_effects: true,
toplevel: true,
unused: true,
}
input: {
function f() {
var arguments;
return typeof arguments;
}
function g() {
var arguments = 42;
return typeof arguments;
}
function h(x) {
var arguments = x;
return typeof arguments;
}
console.log(f(), g(), h());
}
expect: {
console.log(function() {
var arguments;
return typeof arguments;
}(), function() {
return"number";
}(), function(x) {
var arguments = x;
return typeof arguments;
}());
}
expect_stdout: "object number undefined"
}
redefine_arguments_3: {
options = {
evaluate: true,
keep_fargs: false,
passes: 3,
reduce_vars: true,
side_effects: true,
toplevel: true,
unused: true,
}
input: {
function f() {
var arguments;
return typeof arguments;
}
function g() {
var arguments = 42;
return typeof arguments;
}
function h(x) {
var arguments = x;
return typeof arguments;
}
console.log(f(), g(), h());
}
expect: {
console.log(function() {
var arguments;
return typeof arguments;
}(), "number", "undefined");
}
expect_stdout: "object number undefined"
}
redefine_farg_1: {
options = {
evaluate: true,
keep_fargs: false,
reduce_vars: true,
unused: true,
}
input: {
function f(a) {
var a;
return typeof a;
}
function g(a) {
var a = 42;
return typeof a;
}
function h(a, b) {
var a = b;
return typeof a;
}
console.log(f([]), g([]), h([]));
}
expect: {
function f(a) {
var a;
return typeof a;
}
function g() {
return"number";
}
function h(a, b) {
var a = b;
return typeof a;
}
console.log(f([]), g([]), h([]));
}
expect_stdout: "object number undefined"
}
redefine_farg_2: {
options = {
evaluate: true,
keep_fargs: false,
reduce_vars: true,
side_effects: true,
toplevel: true,
unused: true,
}
input: {
function f(a) {
var a;
return typeof a;
}
function g(a) {
var a = 42;
return typeof a;
}
function h(a, b) {
var a = b;
return typeof a;
}
console.log(f([]), g([]), h([]));
}
expect: {
console.log(function(a) {
var a;
return typeof a;
}([]), function() {
return "number";
}(),function(a, b) {
var a = b;
return typeof a;
}([]));
}
expect_stdout: "object number undefined"
}
redefine_farg_3: {
options = {
evaluate: true,
keep_fargs: false,
passes: 3,
reduce_vars: true,
side_effects: true,
toplevel: true,
unused: true,
}
input: {
function f(a) {
var a;
return typeof a;
}
function g(a) {
var a = 42;
return typeof a;
}
function h(a, b) {
var a = b;
return typeof a;
}
console.log(f([]), g([]), h([]));
}
expect: {
console.log(function(a) {
var a;
return typeof a;
}([]), "number", function(a) {
var a = void 0;
return typeof a;
}([]));
}
expect_stdout: "object number undefined"
}
delay_def: {
options = {
evaluate: true,
reduce_vars: true,
unused: true,
}
input: {
function f() {
return a;
var a;
}
function g() {
return a;
var a = 1;
}
console.log(f(), g());
}
expect: {
function f() {
return a;
var a;
}
function g() {
return a;
var a = 1;
}
console.log(f(), g());
}
expect_stdout: true
}

134
test/compress/sequences.js
View File

@@ -306,3 +306,137 @@ unsafe_undefined: {
}
}
}
issue_1685: {
options = {
cascade: true,
side_effects: true,
}
input: {
var a = 100, b = 10;
function f() {
var a = (a--, delete a && --b);
}
f();
console.log(a, b);
}
expect: {
var a = 100, b = 10;
function f() {
var a = (a--, delete a && --b);
}
f();
console.log(a, b);
}
expect_stdout: true
}
func_def_1: {
options = {
cascade: true,
side_effects: true,
}
input: {
function f() {
return f = 0, !!f;
}
console.log(f());
}
expect: {
function f() {
return !!(f = 0);
}
console.log(f());
}
expect_stdout: "false"
}
func_def_2: {
options = {
cascade: true,
side_effects: true,
}
input: {
console.log(function f() {
return f = 0, !!f;
}());
}
expect: {
console.log(function f() {
return f = 0, !!f;
}());
}
expect_stdout: "true"
}
func_def_3: {
options = {
cascade: true,
side_effects: true,
}
input: {
function f() {
function g() {}
return g = 0, !!g;
}
console.log(f());
}
expect: {
function f() {
function g() {}
return !!(g = 0);
}
console.log(f());
}
expect_stdout: "false"
}
func_def_4: {
options = {
cascade: true,
side_effects: true,
}
input: {
function f() {
function g() {
return g = 0, !!g;
}
return g();
}
console.log(f());
}
expect: {
function f() {
function g() {
return !!(g = 0);
}
return g();
}
console.log(f());
}
expect_stdout: "false"
}
func_def_5: {
options = {
cascade: true,
side_effects: true,
}
input: {
function f() {
return function g(){
return g = 0, !!g;
}();
}
console.log(f());
}
expect: {
function f() {
return function g(){
return g = 0, !!g;
}();
}
console.log(f());
}
expect_stdout: "true"
}

422
test/compress/switch.js
View File

@@ -258,3 +258,425 @@ keep_default: {
}
}
}
issue_1663: {
options = {
dead_code: true,
evaluate: true,
}
input: {
var a = 100, b = 10;
function f() {
switch (1) {
case 1:
b = a++;
return ++b;
default:
var b;
}
}
f();
console.log(a, b);
}
expect: {
var a = 100, b = 10;
function f() {
var b;
b = a++;
return ++b;
}
f();
console.log(a, b);
}
expect_stdout: true
}
drop_case: {
options = {
dead_code: true,
}
input: {
switch (foo) {
case 'bar': baz(); break;
case 'moo':
break;
}
}
expect: {
switch (foo) {
case 'bar': baz();
}
}
}
keep_case: {
options = {
dead_code: true,
}
input: {
switch (foo) {
case 'bar': baz(); break;
case moo:
break;
}
}
expect: {
switch (foo) {
case 'bar': baz(); break;
case moo:
}
}
}
issue_376: {
options = {
dead_code: true,
evaluate: true,
}
input: {
switch (true) {
case boolCondition:
console.log(1);
break;
case false:
console.log(2);
break;
}
}
expect: {
switch (true) {
case boolCondition:
console.log(1);
}
}
}
issue_441_1: {
options = {
dead_code: true,
}
input: {
switch (foo) {
case bar:
qux();
break;
case baz:
qux();
break;
default:
qux();
break;
}
}
expect: {
switch (foo) {
case bar:
case baz:
default:
qux();
}
}
}
issue_441_2: {
options = {
dead_code: true,
}
input: {
switch (foo) {
case bar:
// TODO: Fold into the case below
qux();
break;
case fall:
case baz:
qux();
break;
default:
qux();
break;
}
}
expect: {
switch (foo) {
case bar:
qux();
break;
case fall:
case baz:
default:
qux();
}
}
}
issue_1674: {
options = {
dead_code: true,
evaluate: true,
}
input: {
switch (0) {
default:
console.log("FAIL");
break;
case 0:
console.log("PASS");
break;
}
}
expect: {
console.log("PASS");
}
expect_stdout: "PASS"
}
issue_1679: {
options = {
dead_code: true,
evaluate: true,
}
input: {
var a = 100, b = 10;
function f() {
switch (--b) {
default:
case !function x() {}:
break;
case b--:
switch (0) {
default:
case a--:
}
break;
case (a++):
break;
}
}
f();
console.log(a, b);
}
expect: {
var a = 100, b = 10;
function f() {
switch (--b) {
default:
case !function x() {}:
break;
case b--:
switch (0) {
default:
case a--:
}
break;
case (a++):
}
}
f();
console.log(a, b);
}
expect_stdout: true
}
issue_1680_1: {
options = {
dead_code: true,
evaluate: true,
}
input: {
function f(x) {
console.log(x);
return x + 1;
}
switch (2) {
case f(0):
case f(1):
f(2);
case 2:
case f(3):
case f(4):
f(5);
}
}
expect: {
function f(x) {
console.log(x);
return x + 1;
}
switch (2) {
case f(0):
case f(1):
f(2);
case 2:
f(5);
}
}
expect_stdout: [
"0",
"1",
"2",
"5",
]
}
issue_1680_2: {
options = {
dead_code: true,
}
input: {
var a = 100, b = 10;
switch (b) {
case a--:
break;
case b:
var c;
break;
case a:
break;
case a--:
break;
}
console.log(a, b);
}
expect: {
var a = 100, b = 10;
switch (b) {
case a--:
break;
case b:
var c;
break;
case a:
case a--:
}
console.log(a, b);
}
expect_stdout: true
}
issue_1690_1: {
options = {
dead_code: true,
}
input: {
switch (console.log("PASS")) {}
}
expect: {
console.log("PASS");
}
expect_stdout: "PASS"
}
issue_1690_2: {
options = {
dead_code: false,
}
input: {
switch (console.log("PASS")) {}
}
expect: {
switch (console.log("PASS")) {}
}
expect_stdout: "PASS"
}
if_switch_typeof: {
options = {
conditionals: true,
dead_code: true,
side_effects: true,
}
input: {
if (a) switch(typeof b) {}
}
expect: {
a;
}
}
issue_1698: {
options = {
side_effects: true,
}
input: {
var a = 1;
!function() {
switch (a++) {}
}();
console.log(a);
}
expect: {
var a = 1;
!function() {
switch (a++) {}
}();
console.log(a);
}
expect_stdout: "2"
}
issue_1705_1: {
options = {
dead_code: true,
}
input: {
var a = 0;
switch (a) {
default:
console.log("FAIL");
case 0:
break;
}
}
expect: {
var a = 0;
switch (a) {
default:
console.log("FAIL");
case 0:
}
}
expect_stdout: true
}
issue_1705_2: {
options = {
dead_code: true,
evaluate: true,
reduce_vars: true,
sequences: true,
side_effects: true,
toplevel: true,
unused: true,
}
input: {
var a = 0;
switch (a) {
default:
console.log("FAIL");
case 0:
break;
}
}
expect: {
}
expect_stdout: true
}
issue_1705_3: {
options = {
dead_code: true,
}
input: {
switch (a) {
case 0:
break;
default:
break;
}
}
expect: {
a;
}
expect_stdout: true
}

1
test/compress/transform.js
View File

@@ -30,7 +30,6 @@ booleans_global_defs: {
expect: {
console.log(!0);
}
expect_stdout: true
}
condition_evaluate: {

12
test/compress/typeof.js
View File

@@ -48,3 +48,15 @@ typeof_in_boolean_context: {
foo();
}
}
issue_1668: {
options = {
booleans: true,
}
input: {
if (typeof bar);
}
expect: {
if (!0);
}
}