48d2f430ff
* null, undefined, and holes in arrays are interpreted as an empty
string by Array.prototype.join. This commit fixes various issues when
compressing them, or values that can be null or undefined.
* Compress [foo+"str","123"+bar].join("-") -> foo+"str-123"+bar
102 lines
3.2 KiB
JavaScript
102 lines
3.2 KiB
JavaScript
holes_and_undefined: {
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input: {
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w = [1,,];
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x = [1, 2, undefined];
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y = [1, , 2, ];
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z = [1, undefined, 3];
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}
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expect: {
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w=[1,,];
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x=[1,2,void 0];
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y=[1,,2];
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z=[1,void 0,3];
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}
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}
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constant_join: {
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options = {
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unsafe : true,
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evaluate : true
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};
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input: {
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var a = [ "foo", "bar", "baz" ].join("");
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var a1 = [ "foo", "bar", "baz" ].join();
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var b = [ "foo", 1, 2, 3, "bar" ].join("");
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var c = [ boo(), "foo", 1, 2, 3, "bar", bar() ].join("");
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var c1 = [ boo() + bar() + "boo", "foo", 1, 2, 3, "bar", bar() + "foo" ].join("");
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var c2 = [ 1, 2, null, , undefined, "foo", "bar", baz() ].join();
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var d = [ "foo", 1 + 2 + "bar", "baz" ].join("-");
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var e = [].join(foo + bar);
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var f = [].join("");
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var g = [].join("foo");
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}
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expect: {
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var a = "foobarbaz";
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var a1 = "foo,bar,baz";
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var b = "foo123bar";
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var c = [ boo(), "foo123bar", bar() ].join("");
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var c1 = boo() + bar() + "boofoo123bar" + (bar() + "foo");
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var c2 = ["1,2,,,,foo,bar", baz()].join();
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var d = "foo-3bar-baz";
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var e = [].join(foo + bar);
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var f = "";
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var g = "";
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}
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}
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constant_join_2: {
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options = {
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unsafe : true,
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evaluate : true
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};
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input: {
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var a = [ "foo", "bar", boo(), "baz", "x", "y" ].join("");
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var b = [ "foo", "bar", boo(), "baz", "x", "y" ].join("-");
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var c = [ "foo", "bar", boo(), "baz", "x", "y" ].join("really-long-separator");
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var d = [ "foo", "bar", boo(),
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[ "foo", 1, 2, 3, "bar" ].join("+"),
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"baz", "x", "y" ].join("-");
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var e = [ "foo", "bar", boo(),
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[ "foo", 1, 2, 3, "bar" ].join("+"),
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"baz", "x", "y" ].join("really-long-separator");
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var f = [ "str", "str" + variable, "foo", "bar", "moo" + foo ].join("");
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}
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expect: {
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var a = [ "foobar", boo(), "bazxy" ].join("");
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var b = [ "foo-bar", boo(), "baz-x-y" ].join("-");
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var c = [ "foo", "bar", boo(), "baz", "x", "y" ].join("really-long-separator");
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var d = [ "foo-bar", boo(), "foo+1+2+3+bar-baz-x-y" ].join("-");
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var e = [ "foo", "bar", boo(),
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"foo+1+2+3+bar",
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"baz", "x", "y" ].join("really-long-separator");
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var f = "strstr" + variable + "foobarmoo" + foo;
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}
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}
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constant_join_3: {
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options = {
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unsafe : true,
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evaluate : true
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};
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input: {
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var a = [ null ].join();
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var b = [ , ].join();
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var c = [ foo ].join();
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var d = [ foo, null, undefined, boo ].join("-");
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var e = [ foo, boo ].join("");
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var f = [ null, "foo", null, foo + "boo" ].join("");
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var g = [ null, "foo", null, foo + "boo" ].join("-");
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var h = [ "foo" + bar, null, baz + "boo" ].join("");
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}
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expect: {
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var a = "";
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var b = "";
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var c = [ foo ].join();
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var d = [ foo, "-", boo].join("-");
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var e = [ foo, boo ].join("");
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var f = "foo" + (foo + "boo");
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var g = "-foo--" + (foo + "boo");
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var h = "foo" + bar + (baz + "boo");
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}
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}
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