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optimize trivial IIFEs returning constants (#1530)

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This commit is contained in:
kzc
2017-03-02 02:11:40 -05:00
committed by Alex Lam S.L
parent 9699ffb1af
commit ee3b39b909
5 changed files with 91 additions and 17 deletions
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28
test/compress/negate-iife.js
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@@ -38,10 +38,10 @@ negate_iife_3: {
conditionals: true
};
input: {
(function(){ return true })() ? console.log(true) : console.log(false);
(function(){ return t })() ? console.log(true) : console.log(false);
}
expect: {
!function(){ return true }() ? console.log(false) : console.log(true);
!function(){ return t }() ? console.log(false) : console.log(true);
}
}
@@ -51,10 +51,10 @@ negate_iife_3_off: {
conditionals: true,
};
input: {
(function(){ return true })() ? console.log(true) : console.log(false);
(function(){ return t })() ? console.log(true) : console.log(false);
}
expect: {
!function(){ return true }() ? console.log(false) : console.log(true);
!function(){ return t }() ? console.log(false) : console.log(true);
}
}
@@ -65,13 +65,13 @@ negate_iife_4: {
sequences: true
};
input: {
(function(){ return true })() ? console.log(true) : console.log(false);
(function(){ return t })() ? console.log(true) : console.log(false);
(function(){
console.log("something");
})();
}
expect: {
!function(){ return true }() ? console.log(false) : console.log(true), function(){
!function(){ return t }() ? console.log(false) : console.log(true), function(){
console.log("something");
}();
}
@@ -86,7 +86,7 @@ sequence_off: {
};
input: {
function f() {
(function(){ return true })() ? console.log(true) : console.log(false);
(function(){ return t })() ? console.log(true) : console.log(false);
(function(){
console.log("something");
})();
@@ -95,19 +95,19 @@ sequence_off: {
(function(){
console.log("something");
})();
(function(){ return true })() ? console.log(true) : console.log(false);
(function(){ return t })() ? console.log(true) : console.log(false);
}
}
expect: {
function f() {
!function(){ return true }() ? console.log(false) : console.log(true), function(){
!function(){ return t }() ? console.log(false) : console.log(true), function(){
console.log("something");
}();
}
function g() {
(function(){
console.log("something");
})(), function(){ return true }() ? console.log(true) : console.log(false);
})(), function(){ return t }() ? console.log(true) : console.log(false);
}
}
}
@@ -119,7 +119,7 @@ negate_iife_5: {
conditionals: true,
};
input: {
if ((function(){ return true })()) {
if ((function(){ return t })()) {
foo(true);
} else {
bar(false);
@@ -129,7 +129,7 @@ negate_iife_5: {
})();
}
expect: {
!function(){ return true }() ? bar(false) : foo(true), function(){
!function(){ return t }() ? bar(false) : foo(true), function(){
console.log("something");
}();
}
@@ -142,7 +142,7 @@ negate_iife_5_off: {
conditionals: true,
};
input: {
if ((function(){ return true })()) {
if ((function(){ return t })()) {
foo(true);
} else {
bar(false);
@@ -152,7 +152,7 @@ negate_iife_5_off: {
})();
}
expect: {
!function(){ return true }() ? bar(false) : foo(true), function(){
!function(){ return t }() ? bar(false) : foo(true), function(){
console.log("something");
}();
}