Files
UglifyJS/test/compress/loops.js
2017-12-03 11:59:41 +08:00

539 lines
9.6 KiB
JavaScript

while_becomes_for: {
options = { loops: true };
input: {
while (foo()) bar();
}
expect: {
for (; foo(); ) bar();
}
}
drop_if_break_1: {
options = { loops: true };
input: {
for (;;)
if (foo()) break;
}
expect: {
for (; !foo(););
}
}
drop_if_break_2: {
options = { loops: true };
input: {
for (;bar();)
if (foo()) break;
}
expect: {
for (; bar() && !foo(););
}
}
drop_if_break_3: {
options = { loops: true };
input: {
for (;bar();) {
if (foo()) break;
stuff1();
stuff2();
}
}
expect: {
for (; bar() && !foo();) {
stuff1();
stuff2();
}
}
}
drop_if_break_4: {
options = { loops: true, sequences: true };
input: {
for (;bar();) {
x();
y();
if (foo()) break;
z();
k();
}
}
expect: {
for (; bar() && (x(), y(), !foo());) z(), k();
}
}
drop_if_else_break_1: {
options = { loops: true };
input: {
for (;;) if (foo()) bar(); else break;
}
expect: {
for (; foo(); ) bar();
}
}
drop_if_else_break_2: {
options = { loops: true };
input: {
for (;bar();) {
if (foo()) baz();
else break;
}
}
expect: {
for (; bar() && foo();) baz();
}
}
drop_if_else_break_3: {
options = { loops: true };
input: {
for (;bar();) {
if (foo()) baz();
else break;
stuff1();
stuff2();
}
}
expect: {
for (; bar() && foo();) {
baz();
stuff1();
stuff2();
}
}
}
drop_if_else_break_4: {
options = { loops: true, sequences: true };
input: {
for (;bar();) {
x();
y();
if (foo()) baz();
else break;
z();
k();
}
}
expect: {
for (; bar() && (x(), y(), foo());) baz(), z(), k();
}
}
parse_do_while_with_semicolon: {
options = { loops: false };
input: {
do {
x();
} while (false);y()
}
expect: {
do x(); while (false);y();
}
}
parse_do_while_without_semicolon: {
options = { loops: false };
input: {
do {
x();
} while (false)y()
}
expect: {
do x(); while (false);y();
}
}
keep_collapse_const_in_own_block_scope: {
options = {
join_vars: true,
loops: true
}
input: {
var i=2;
const c=5;
while(i--)
console.log(i);
console.log(c);
}
expect: {
var i=2;
const c=5;
for(;i--;)
console.log(i);
console.log(c);
}
expect_stdout: true
}
keep_collapse_const_in_own_block_scope_2: {
options = {
join_vars: true,
loops: true
}
input: {
const c=5;
var i=2; // Moves to loop, while it did not in previous test
while(i--)
console.log(i);
console.log(c);
}
expect: {
const c=5;
for(var i=2;i--;)
console.log(i);
console.log(c);
}
expect_stdout: true
}
evaluate: {
options = {
dead_code: true,
evaluate: true,
loops: true,
passes: 2,
side_effects: true,
};
input: {
while (true) {
a();
}
while (false) {
b();
}
do {
c();
} while (true);
do {
d();
} while (false);
}
expect: {
for(;;)
a();
for(;;)
c();
d();
}
}
issue_1532: {
options = {
evaluate: true,
loops: true,
}
input: {
function f(x, y) {
do {
if (x) break;
foo();
} while (false);
}
}
expect: {
function f(x, y) {
do {
if (x) break;
foo();
} while (false);
}
}
}
issue_186: {
beautify = {
beautify: false,
ie8: false,
}
input: {
var x = 3;
if (foo())
do
do
alert(x);
while (--x);
while (x);
else
bar();
}
expect_exact: 'var x=3;if(foo())do{do{alert(x)}while(--x)}while(x);else bar();'
}
issue_186_ie8: {
beautify = {
beautify: false,
ie8: true,
}
input: {
var x = 3;
if (foo())
do
do
alert(x);
while (--x);
while (x);
else
bar();
}
expect_exact: 'var x=3;if(foo()){do{do{alert(x)}while(--x)}while(x)}else bar();'
}
issue_186_beautify: {
beautify = {
beautify: true,
ie8: false,
}
input: {
var x = 3;
if (foo())
do
do
alert(x);
while (--x);
while (x);
else
bar();
}
expect_exact: [
'var x = 3;',
'',
'if (foo()) do {',
' do {',
' alert(x);',
' } while (--x);',
'} while (x); else bar();',
]
}
issue_186_beautify_ie8: {
beautify = {
beautify: true,
ie8: true,
}
input: {
var x = 3;
if (foo())
do
do
alert(x);
while (--x);
while (x);
else
bar();
}
expect_exact: [
'var x = 3;',
'',
'if (foo()) {',
' do {',
' do {',
' alert(x);',
' } while (--x);',
' } while (x);',
'} else bar();',
]
}
issue_186_bracketize: {
beautify = {
beautify: false,
bracketize: true,
ie8: false,
}
input: {
var x = 3;
if (foo())
do
do
alert(x);
while (--x);
while (x);
else
bar();
}
expect_exact: 'var x=3;if(foo()){do{do{alert(x)}while(--x)}while(x)}else{bar()}'
}
issue_186_bracketize_ie8: {
beautify = {
beautify: false,
bracketize: true,
ie8: true,
}
input: {
var x = 3;
if (foo())
do
do
alert(x);
while (--x);
while (x);
else
bar();
}
expect_exact: 'var x=3;if(foo()){do{do{alert(x)}while(--x)}while(x)}else{bar()}'
}
issue_186_beautify_bracketize: {
beautify = {
beautify: true,
bracketize: true,
ie8: false,
}
input: {
var x = 3;
if (foo())
do
do
alert(x);
while (--x);
while (x);
else
bar();
}
expect_exact: [
'var x = 3;',
'',
'if (foo()) {',
' do {',
' do {',
' alert(x);',
' } while (--x);',
' } while (x);',
'} else {',
' bar();',
'}',
]
}
issue_186_beautify_bracketize_ie8: {
beautify = {
beautify: true,
bracketize: true,
ie8: true,
}
input: {
var x = 3;
if (foo())
do
do
alert(x);
while (--x);
while (x);
else
bar();
}
expect_exact: [
'var x = 3;',
'',
'if (foo()) {',
' do {',
' do {',
' alert(x);',
' } while (--x);',
' } while (x);',
'} else {',
' bar();',
'}',
]
}
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;);}"
}
do_switch: {
options = {
evaluate: true,
loops: true,
}
input: {
do {
switch (a) {
case b:
continue;
}
} while (false);
}
expect: {
do {
switch (a) {
case b:
continue;
}
} while (false);
}
}
in_parenthesis_1: {
input: {
for (("foo" in {});0;);
}
expect_exact: 'for(("foo"in{});0;);'
}
in_parenthesis_2: {
input: {
for ((function(){ "foo" in {}; });0;);
}
expect_exact: 'for(function(){"foo"in{}};0;);'
}
init_side_effects: {
options = {
loops: true,
side_effects: true,
};
input: {
for (function() {}(), i = 0; i < 5; i++) console.log(i);
for (function() {}(); i < 10; i++) console.log(i);
}
expect: {
for (i = 0; i < 5; i++) console.log(i);
for (; i < 10; i++) console.log(i);
}
expect_stdout: true
}
dead_code_condition: {
options = {
dead_code: true,
evaluate: true,
loops: true,
sequences: true,
}
input: {
for (var a = 0, b = 5; (a += 1, 3) - 3 && b > 0; b--) {
var c = function() {
b--;
}(a++);
}
console.log(a);
}
expect: {
var c;
var a = 0, b = 5;
a += 1, 0,
console.log(a);
}
expect_stdout: "1"
}