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improve synergy between collapse_vars & unused (#2521)

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This commit is contained in:
Alex Lam S.L
2017-11-28 14:02:39 +08:00
committed by GitHub
parent ecc9f6b770
commit 32def5ebf5
4 changed files with 48 additions and 49 deletions
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47
test/compress/collapse_vars.js
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@@ -2013,7 +2013,8 @@ chained_3: {
}
expect: {
console.log(function(a, b) {
var c = 1, c = b;
var c = 1;
c = b;
b++;
return c;
}(0, 2));
@@ -2081,7 +2082,7 @@ inner_lvalues: {
expect_stdout: true
}
double_def: {
double_def_1: {
options = {
collapse_vars: true,
unused: true,
@@ -2091,8 +2092,23 @@ double_def: {
a();
}
expect: {
var a = x;
(a = a && y)();
var a;
(a = (a = x) && y)();
}
}
double_def_2: {
options = {
collapse_vars: true,
toplevel: true,
unused: true,
}
input: {
var a = x, a = a && y;
a();
}
expect: {
(x && y)();
}
}
@@ -2201,7 +2217,7 @@ lvalues_def: {
}
expect: {
var a = 0, b = 1;
var a = b++, b = +void 0;
a = b++, b = +void 0;
a && a[a++];
console.log(a, b);
}
@@ -3074,10 +3090,9 @@ issue_2437: {
var result = !!req.onreadystatechange;
Object.defineProperty(XMLHttpRequest.prototype, 'onreadystatechange', xhrDesc || {});
return result;
}
else {
} else {
var req = new XMLHttpRequest();
var detectFunc = function () { };
var detectFunc = function () {};
req.onreadystatechange = detectFunc;
var result = req[SYMBOL_FAKE_ONREADYSTATECHANGE_1] === detectFunc;
req.onreadystatechange = null;
@@ -3093,9 +3108,9 @@ issue_2437: {
return Object.defineProperty(XMLHttpRequest.prototype, "onreadystatechange", xhrDesc || {}),
result;
}
var req = new XMLHttpRequest(), detectFunc = function() {};
req.onreadystatechange = detectFunc,
result = req[SYMBOL_FAKE_ONREADYSTATECHANGE_1] === detectFunc,
var req, detectFunc = function() {};
(req = new XMLHttpRequest()).onreadystatechange = detectFunc;
result = req[SYMBOL_FAKE_ONREADYSTATECHANGE_1] === detectFunc;
req.onreadystatechange = null;
}();
}
@@ -3609,15 +3624,15 @@ issue_2497: {
expect: {
function sample() {
if (true)
for (i = 0; i < 1; ++i)
for (k = 0; k < 1; ++k) {
for (var i = 0; i < 1; ++i)
for (var k = 0; k < 1; ++k) {
value = 1;
value = value ? value + 1 : 0;
}
else
for (var i = 0; i < 1; ++i)
for (var k = 0; k < 1; ++k)
var value=1;
for (i = 0; i < 1; ++i)
for (k = 0; k < 1; ++k)
var value = 1;
}
}
}