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improve unused on assign-only symbols (#2568)

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This commit is contained in:
Alex Lam S.L
2017-12-09 06:19:29 +08:00
committed by GitHub
parent 74a2f53683
commit 0aff037a35
2 changed files with 113 additions and 75 deletions
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150
test/compress/drop-unused.js
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@@ -179,7 +179,9 @@ keep_fnames: {
}
drop_assign: {
options = { unused: true };
options = {
unused: true,
}
input: {
function f1() {
var a;
@@ -200,7 +202,7 @@ drop_assign: {
var a;
return function() {
a = 1;
}
};
}
}
expect: {
@@ -217,16 +219,17 @@ drop_assign: {
return 1;
}
function f5() {
var a;
return function() {
a = 1;
}
1;
};
}
}
}
keep_assign: {
options = { unused: "keep_assign" };
options = {
unused: "keep_assign",
}
input: {
function f1() {
var a;
@@ -247,7 +250,7 @@ keep_assign: {
var a;
return function() {
a = 1;
}
};
}
}
expect: {
@@ -270,19 +273,22 @@ keep_assign: {
var a;
return function() {
a = 1;
}
};
}
}
}
drop_toplevel_funcs: {
options = { toplevel: "funcs", unused: true };
options = {
toplevel: "funcs",
unused: true,
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -298,13 +304,16 @@ drop_toplevel_funcs: {
}
drop_toplevel_vars: {
options = { toplevel: "vars", unused: true };
options = {
toplevel: "vars",
unused: true,
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -312,11 +321,10 @@ drop_toplevel_vars: {
console.log(b = 3);
}
expect: {
var c = g;
function f(d) {
return function() {
c = 2;
}
2;
};
}
2;
function g() {}
@@ -326,13 +334,17 @@ drop_toplevel_vars: {
}
drop_toplevel_vars_fargs: {
options = { keep_fargs: false, toplevel: "vars", unused: true };
options = {
keep_fargs: false,
toplevel: "vars",
unused: true,
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -340,11 +352,10 @@ drop_toplevel_vars_fargs: {
console.log(b = 3);
}
expect: {
var c = g;
function f() {
return function() {
c = 2;
}
2;
};
}
2;
function g() {}
@@ -354,13 +365,16 @@ drop_toplevel_vars_fargs: {
}
drop_toplevel_all: {
options = { toplevel: true, unused: true };
options = {
toplevel: true,
unused: true
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -374,13 +388,16 @@ drop_toplevel_all: {
}
drop_toplevel_retain: {
options = { top_retain: "f,a,o", unused: true };
options = {
top_retain: "f,a,o",
unused: true,
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -388,26 +405,28 @@ drop_toplevel_retain: {
console.log(b = 3);
}
expect: {
var a, c = g;
var a;
function f(d) {
return function() {
c = 2;
}
2;
};
}
a = 2;
function g() {}
console.log(3);
}
}
drop_toplevel_retain_array: {
options = { top_retain: [ "f", "a", "o" ], unused: true };
options = {
top_retain: [ "f", "a", "o" ],
unused: true,
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -415,26 +434,28 @@ drop_toplevel_retain_array: {
console.log(b = 3);
}
expect: {
var a, c = g;
var a;
function f(d) {
return function() {
c = 2;
}
2;
};
}
a = 2;
function g() {}
console.log(3);
}
}
drop_toplevel_retain_regex: {
options = { top_retain: /^[fao]$/, unused: true };
options = {
top_retain: /^[fao]$/,
unused: true,
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -442,26 +463,29 @@ drop_toplevel_retain_regex: {
console.log(b = 3);
}
expect: {
var a, c = g;
var a;
function f(d) {
return function() {
c = 2;
}
2;
};
}
a = 2;
function g() {}
console.log(3);
}
}
drop_toplevel_all_retain: {
options = { toplevel: true, top_retain: "f,a,o", unused: true };
options = {
toplevel: true,
top_retain: "f,a,o",
unused: true,
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -469,26 +493,29 @@ drop_toplevel_all_retain: {
console.log(b = 3);
}
expect: {
var a, c = g;
var a;
function f(d) {
return function() {
c = 2;
}
2;
};
}
a = 2;
function g() {}
console.log(3);
}
}
drop_toplevel_funcs_retain: {
options = { toplevel: "funcs", top_retain: "f,a,o", unused: true };
options = {
toplevel: "funcs",
top_retain: "f,a,o",
unused: true,
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -500,7 +527,7 @@ drop_toplevel_funcs_retain: {
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -509,13 +536,17 @@ drop_toplevel_funcs_retain: {
}
drop_toplevel_vars_retain: {
options = { toplevel: "vars", top_retain: "f,a,o", unused: true };
options = {
toplevel: "vars",
top_retain: "f,a,o",
unused: true,
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -523,11 +554,11 @@ drop_toplevel_vars_retain: {
console.log(b = 3);
}
expect: {
var a, c = g;
var a;
function f(d) {
return function() {
c = 2;
}
2;
};
}
a = 2;
function g() {}
@@ -537,13 +568,16 @@ drop_toplevel_vars_retain: {
}
drop_toplevel_keep_assign: {
options = { toplevel: true, unused: "keep_assign" };
options = {
toplevel: true,
unused: "keep_assign",
}
input: {
var a, b = 1, c = g;
function f(d) {
return function() {
c = 2;
}
};
}
a = 2;
function g() {}
@@ -753,11 +787,11 @@ issue_1583: {
expect: {
function m(t) {
(function(e) {
t = function() {
(function() {
return (function(a) {
return function(a) {};
})();
}();
})();
})();
}
}