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improve string concatenation

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shuffle associative operations to minimise parentheses and aid other uglification efforts

closes #1454
This commit is contained in:
alexlamsl
2017-02-18 19:07:52 +08:00
parent f584ca8d07
commit 6b3c49e458
3 changed files with 152 additions and 5 deletions
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8
test/compress/arrays.js
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@@ -51,7 +51,7 @@ constant_join: {
var c = boo() + "foo123bar" + bar();
var c1 = "" + boo() + bar() + "foo123bar" + bar();
var c2 = "12foobar" + baz();
var c3 = boo() + bar() + "foo123bar" + (bar() + "foo");
var c3 = boo() + bar() + "foo123bar" + bar() + "foo";
var c4 = "12foobar" + baz();
var c5 = [ boo() + bar() + "foo", 1, 2, 3, "bar", bar() + "foo" ].join();
var c6 = [ "1,2,,,foo,bar", baz() ].join();
@@ -117,11 +117,11 @@ constant_join_3: {
var d = "" + foo;
var e = [ foo, "-", bar ].join("-");
var f = "" + foo + bar;
var g = "foo" + (bar + "baz");
var g = "foo" + bar + "baz";
var h = [ "-foo-", bar + "baz" ].join("-");
var i = "foo" + bar + (baz + "moo");
var i = "foo" + bar + baz + "moo";
var j = foo + "bar" + baz;
var k = foo + ("bar" + baz);
var k = foo + "bar" + baz;
var l = foo + (bar + "baz");
}
}