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Merge pull request #1143 from danez/recursive-functions
Improve tree-shaking of assignment expressions and unused functions
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export default function isProgramLevel ( node ) { | ||
do { | ||
if ( node.type === 'Program' ) { | ||
return true; | ||
} | ||
node = node.parent; | ||
} while ( node && !/Function/.test( node.type ) ); | ||
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return false; | ||
} |
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module.exports = { | ||
skip: true, | ||
description: 'discards unused function expression assigned to a variable that calls itself and a global' | ||
}; |
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define(function () { 'use strict'; | ||
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}); |
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@@ -0,0 +1,2 @@ | ||
'use strict'; | ||
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@@ -0,0 +1 @@ | ||
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@@ -0,0 +1,6 @@ | ||
(function () { | ||
'use strict'; | ||
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}()); |
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@@ -0,0 +1,9 @@ | ||
(function (global, factory) { | ||
typeof exports === 'object' && typeof module !== 'undefined' ? factory() : | ||
typeof define === 'function' && define.amd ? define(factory) : | ||
(factory()); | ||
}(this, (function () { 'use strict'; | ||
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}))); |
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@@ -0,0 +1,3 @@ | ||
module.exports = { | ||
description: 'discards unused function expression assigned to a variable that calls itself and has side effects' | ||
}; |
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@@ -0,0 +1,5 @@ | ||
define(function () { 'use strict'; | ||
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}); |
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@@ -0,0 +1,2 @@ | ||
'use strict'; | ||
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@@ -0,0 +1 @@ | ||
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@@ -0,0 +1,6 @@ | ||
(function () { | ||
'use strict'; | ||
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}()); |
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@@ -0,0 +1,9 @@ | ||
(function (global, factory) { | ||
typeof exports === 'object' && typeof module !== 'undefined' ? factory() : | ||
typeof define === 'function' && define.amd ? define(factory) : | ||
(factory()); | ||
}(this, (function () { 'use strict'; | ||
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}))); |
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@@ -0,0 +1,7 @@ | ||
var foo = function foo(param) { | ||
if ( whatever ) { | ||
foo(param); | ||
} else { | ||
param.foo = 1; | ||
} | ||
}; |
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@@ -0,0 +1,3 @@ | ||
module.exports = { | ||
description: 'skips a dead branch (h)' | ||
}; |
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@@ -0,0 +1,8 @@ | ||
define(function () { 'use strict'; | ||
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function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); | ||
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}); |
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@@ -0,0 +1,6 @@ | ||
'use strict'; | ||
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function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); |
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@@ -0,0 +1,4 @@ | ||
function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); |
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@@ -0,0 +1,9 @@ | ||
(function () { | ||
'use strict'; | ||
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function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); | ||
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}()); |
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@@ -0,0 +1,12 @@ | ||
(function (global, factory) { | ||
typeof exports === 'object' && typeof module !== 'undefined' ? factory() : | ||
typeof define === 'function' && define.amd ? define(factory) : | ||
(factory()); | ||
}(this, (function () { 'use strict'; | ||
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function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); | ||
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}))); |
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@@ -0,0 +1,11 @@ | ||
function bar(umm) { | ||
umm = hmm(); | ||
console.log("bar"); | ||
} | ||
function hmm() { | ||
return true; | ||
} | ||
function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,3 @@ | ||
module.exports = { | ||
description: 'skips a dead branch (h)' | ||
}; |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,8 @@ | ||
define(function () { 'use strict'; | ||
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function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); | ||
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}); |
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@@ -0,0 +1,6 @@ | ||
'use strict'; | ||
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function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,4 @@ | ||
function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,9 @@ | ||
(function () { | ||
'use strict'; | ||
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function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); | ||
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}()); |
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Original file line number | Diff line number | Diff line change |
---|---|---|
@@ -0,0 +1,12 @@ | ||
(function (global, factory) { | ||
typeof exports === 'object' && typeof module !== 'undefined' ? factory() : | ||
typeof define === 'function' && define.amd ? define(factory) : | ||
(factory()); | ||
}(this, (function () { 'use strict'; | ||
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function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); | ||
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}))); |
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,12 @@ | ||
function bar() { | ||
var t; | ||
t = hmm(); | ||
console.log("bar"); | ||
} | ||
function hmm() { | ||
return true; | ||
} | ||
function baz() { | ||
console.log("baz"); | ||
} | ||
baz(); |