while_becomes_for: {
    options = {
        loops: true,
    }
    input: {
        while (foo()) bar();
    }
    expect: {
        for (;foo();) bar();
    }
}

drop_if_break_1: {
    options = {
        loops: true,
    }
    input: {
        for (;;)
            if (foo()) break;
    }
    expect: {
        for (;!foo(););
    }
}

drop_if_break_2: {
    options = {
        loops: true,
    }
    input: {
        for (;bar();)
            if (foo()) break;
    }
    expect: {
        for (;bar() && !foo(););
    }
}

drop_if_break_3: {
    options = {
        loops: true,
    }
    input: {
        for (;bar();) {
            if (foo()) break;
            stuff1();
            stuff2();
        }
    }
    expect: {
        for (; bar() && !foo();) {
            stuff1();
            stuff2();
        }
    }
}

drop_if_break_4: {
    options = {
        loops: true,
        sequences: true,
    }
    input: {
        for (;bar();) {
            x();
            y();
            if (foo()) break;
            z();
            k();
        }
    }
    expect: {
        for (;bar() && (x(), y(), !foo());) z(), k();
    }
}

drop_if_else_break_1: {
    options = {
</td></tr></table>
<table class='tabs'><tr><td>
<a href='/tracifyjs/about/'>about</a><a href='/tracifyjs/'>summary</a><a href='/tracifyjs/refs/?id=4e49302916fe395f5c63992aa28c33392208fb27'>refs</a><a href='/tracifyjs/log/test/compress/issue-1041.js'>log</a><a href='/tracifyjs/tree/test/compress/issue-1041.js?id=4e49302916fe395f5c63992aa28c33392208fb27'>tree</a><a href='/tracifyjs/commit/test/compress/issue-1041.js?id=4e49302916fe395f5c63992aa28c33392208fb27'>commit</a><a class='active' href='/tracifyjs/diff/test/compress/issue-1041.js?id=4e49302916fe395f5c63992aa28c33392208fb27'>diff</a></td><td class='form'><form class='right' method='get' action='/tracifyjs/log/test/compress/issue-1041.js'>
<input type='hidden' name='id' value='4e49302916fe395f5c63992aa28c33392208fb27'/><select name='qt'>
<option value='grep'>log msg</option>
<option value='author'>author</option>
<option value='committer'>committer</option>
<option value='range'>range</option>
</select>
<input class='txt' type='search' size='10' name='q' value=''/>
<input type='submit' value='search'/>
</form>
</td></tr></table>
<div class='path'>path: <a href='/tracifyjs/diff/?id=4e49302916fe395f5c63992aa28c33392208fb27'>root</a>/<a href='/tracifyjs/diff/test?id=4e49302916fe395f5c63992aa28c33392208fb27'>test</a>/<a href='/tracifyjs/diff/test/compress?id=4e49302916fe395f5c63992aa28c33392208fb27'>compress</a>/<a href='/tracifyjs/diff/test/compress/issue-1041.js?id=4e49302916fe395f5c63992aa28c33392208fb27'>issue-1041.js</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='4e49302916fe395f5c63992aa28c33392208fb27'/><table><tr><td colspan='2'/></tr><tr><td class='label'>context:</td><td class='ctrl'><select name='context' onchange='this.form.submit();'><option value='1'>1</option><option value='2'>2</option><option value='3' selected='selected'>3</option><option value='4'>4</option><option value='5'>5</option><option value='6'>6</option><option value='7'>7</option><option value='8'>8</option><option value='9'>9</option><option value='10'>10</option><option value='15'>15</option><option value='20'>20</option><option value='25'>25</option><option value='30'>30</option><option value='35'>35</option><option value='40'>40</option></select></td></tr><tr><td class='label'>space:</td><td class='ctrl'><select name='ignorews' onchange='this.form.submit();'><option value='0' selected='selected'>include</option><option value='1'>ignore</option></select></td></tr><tr><td class='label'>mode:</td><td class='ctrl'><select name='dt' onchange='this.form.submit();'><option value='0' selected='selected'>unified</option><option value='1'>ssdiff</option><option value='2'>stat only</option></select></td></tr><tr><td/><td class='ctrl'><noscript><input type='submit' value='reload'/></noscript></td></tr></table></form></div><div class='diffstat-header'><a href='/tracifyjs/diff/?id=4e49302916fe395f5c63992aa28c33392208fb27'>Diffstat</a> (limited to 'test/compress/issue-1041.js')</div><table summary='diffstat' class='diffstat'><tr><td class='mode'>-rw-r--r--</td><td class='upd'><a href='/tracifyjs/diff/test/compress/issue-1041.js?id=4e49302916fe395f5c63992aa28c33392208fb27'>test/compress/issue-1041.js</a></td><td class='right'>6</td><td class='graph'><table summary='file diffstat' width='6%'><tr><td class='add' style='width: 66.7%;'/><td class='rem' style='width: 33.3%;'/><td class='none' style='width: 0.0%;'/></tr></table></td></tr>
</table><div class='diffstat-summary'>1 files changed, 4 insertions, 2 deletions</div><table summary='diff' class='diff'><tr><td><div class='head'>diff --git a/test/compress/issue-1041.js b/test/compress/issue-1041.js<br/>index 9dd176fd..cdbc22cc 100644<br/>--- a/<a href='/tracifyjs/tree/test/compress/issue-1041.js?id=1e51586996ae4fdac68a8ea597c20ab170809c43'>test/compress/issue-1041.js</a><br/>+++ b/<a href='/tracifyjs/tree/test/compress/issue-1041.js?id=4e49302916fe395f5c63992aa28c33392208fb27'>test/compress/issue-1041.js</a></div><div class='hunk'>@@ -13,7 +13,8 @@ const_declaration: {</div><div class='ctx'> </div><div class='ctx'> const_pragma: {</div><div class='ctx'>     options = {</div><div class='del'>-        evaluate: true</div><div class='add'>+        evaluate: true,</div><div class='add'>+        reduce_vars: true,</div><div class='ctx'>     };</div><div class='ctx'> </div><div class='ctx'>     input: {</div><div class='hunk'>@@ -27,7 +28,8 @@ const_pragma: {</div><div class='ctx'> // for completeness' sake</div><div class='ctx'> not_const: {</div><div class='ctx'>     options = {</div><div class='del'>-        evaluate: true</div><div class='add'>+        evaluate: true,</div><div class='add'>+        reduce_vars: true,</div><div class='ctx'>     };</div><div class='ctx'> </div><div class='ctx'>     input: {</div></td></tr></table></div> <!-- class=content -->
                         <div class=footer>generated by
                             <a href="https://git.zx2c4.com/cgit/about/">
                                 cgit
                             </a>
                         </div>
                        </div> <!-- id=cgit -->
</body>
</html>
                   alert(x);
                while (--x);
            while (x);
        else
            bar();
    }
    expect_exact: [
        'var x = 3;',
        '',
        'if (foo()) {',
        '    do {',
        '        do {',
        '            alert(x);',
        '        } while (--x);',
        '    } while (x);',
        '} else {',
        '    bar();',
        '}',
    ]
}

issue_186_beautify_braces_ie8: {
    beautify = {
        beautify: true,
        braces: true,
        ie8: true,
    }
    input: {
        var x = 3;
        if (foo())
            do
                do
                    alert(x);
                while (--x);
            while (x);
        else
            bar();
    }
    expect_exact: [
        'var x = 3;',
        '',
        'if (foo()) {',
        '    do {',
        '        do {',
        '            alert(x);',
        '        } while (--x);',
        '    } while (x);',
        '} else {',
        '    bar();',
        '}',
    ]
}

issue_1648: {
    options = {
        join_vars: true,
        loops: true,
        passes: 2,
        sequences: true,
        unused: true,
    }
    input: {
        function f() {
            x();
            var b = 1;
            while (1);
        }
    }
    expect_exact: "function f(){for(x();1;);}"
}

do_switch: {
    options = {
        evaluate: true,
        loops: true,
    }
    input: {
        do {
            switch (a) {
              case b:
                continue;
            }
        } while (false);
    }
    expect: {
        do {
            switch (a) {
              case b:
                continue;
            }
        } while (false);
    }
}

in_parenthesis_1: {
    input: {
        for (("foo" in {});0;);
    }
    expect_exact: 'for(("foo"in{});0;);'
}

in_parenthesis_2: {
    input: {
        for ((function(){ "foo" in {}; });0;);
    }
    expect_exact: 'for(function(){"foo"in{}};0;);'
}

init_side_effects: {
    options = {
        loops: true,
        side_effects: true,
    }
    input: {
        for (function() {}(), i = 0; i < 5; i++) console.log(i);
        for (function() {}(); i < 10; i++) console.log(i);
    }
    expect: {
        for (i = 0; i < 5; i++) console.log(i);
        for (; i < 10; i++) console.log(i);
    }
    expect_stdout: true
}

dead_code_condition: {
    options = {
        dead_code: true,
        evaluate: true,
        loops: true,
        sequences: true,
    }
    input: {
        for (var a = 0, b = 5; (a += 1, 3) - 3 && b > 0; b--) {
            var c = function() {
                b--;
            }(a++);
        }
        console.log(a);
    }
    expect: {
        var c;
        var a = 0, b = 5;
        a += 1, 0,
        console.log(a);
    }
    expect_stdout: "1"
}

issue_2740_1: {
    options = {
        dead_code: true,
        loops: true,
    }
    input: {
        for (;;) break;
        for (a();;) break;
        for (;b();) break;
        for (c(); d();) break;
        for (;;e()) break;
        for (f();; g()) break;
        for (;h(); i()) break;
        for (j(); k(); l()) break;
    }
    expect: {
        a();
        b();
        c();
        d();
        f();
        h();
        j();
        k();
    }
}

issue_2740_2: {
    options = {
        dead_code: true,
        loops: true,
        passes: 2,
        unused: true,
    }
    input: {
        L1: while (x()) {
            break L1;
        }
    }
    expect: {
        x();
    }
}

issue_2740_3: {
    options = {
        dead_code: true,
        loops: true,
        unused: true,
    }
    input: {
        L1: for (var x = 0; x < 3; x++) {
            L2: for (var y = 0; y < 2; y++) {
                break L1;
            }
        }
        console.log(x, y);
    }
    expect: {
        L1: for (var x = 0; x < 3; x++) {
            var y = 0;
            if (y < 2)
                break L1;
        }
        console.log(x, y);
    }
    expect_stdout: "0 0"
}

issue_2740_4: {
    options = {
        dead_code: true,
        loops: true,
        passes: 2,
        unused: true,
    }
    input: {
        L1: for (var x = 0; x < 3; x++) {
            L2: for (var y = 0; y < 2; y++) {
                break L2;
            }
        }
        console.log(x, y);
    }
    expect: {
        for (var x = 0; x < 3; x++) {
            var y = 0;
            y < 2;
        }
        console.log(x, y);
    }
    expect_stdout: "3 0"
}

issue_2740_5: {
    options = {
        dead_code: true,
        loops: true,
        passes: 2,
        unused: true,
    }
    input: {
        L1: for (var x = 0; x < 3; x++) {
            break L1;
            L2: for (var y = 0; y < 2; y++) {
                break L2;
            }
        }
        console.log(x, y);
    }
    expect: {
        var x = 0;
        x < 3;
        var y;
        console.log(x,y);
    }
    expect_stdout: "0 undefined"
}

issue_2904: {
    options = {
        join_vars: true,
        loops: true,
    }
    input: {
        var a = 1;
        do {
            console.log(a);
        } while (--a);
    }
    expect: {
        for (var a = 1; console.log(a), --a;);
    }
    expect_stdout: "1"
}

issue_3371: {
    options = {
        functions: true,
        join_vars: true,
        loops: true,
        reduce_vars: true,
        unused: true,
    }
    input: {
        (function() {
            var a = function() {
                console.log("PASS");
            };
            while (a());
        })();
    }
    expect: {
        (function() {
            function a() {
                console.log("PASS");
            }
            for (;a(););
        })();
    }
    expect_stdout: "PASS"
}

step: {
    options = {
        loops: true,
        side_effects: true,
    }
    input: {
        for (var i = 0; i < 42; "foo", i++, "bar");
        console.log(i);
    }
    expect: {
        for (var i = 0; i < 42; i++);
        console.log(i);
    }
    expect_stdout: "42"
}

empty_for_in: {
    options = {
        loops: true,
        toplevel: true,
        unused: true,
    }
    input: {
        for (var a in [ 1, 2, 3 ]) {
            var b = a + 1;
        }
    }
    expect: {}
    expect_warnings: [
        "WARN: Dropping unused variable b [test/compress/loops.js:2,16]",
        "INFO: Dropping unused loop variable a [test/compress/loops.js:1,17]",
    ]
}

empty_for_in_used: {
    options = {
        loops: true,
        toplevel: true,
        unused: true,
    }
    input: {
        for (var a in [ 1, 2, 3 ]) {
            var b = a + 1;
        }
        console.log(a);
    }
    expect: {
        for (var a in [ 1, 2, 3 ]);
        console.log(a);
    }
    expect_stdout: "2"
    expect_warnings: [
        "WARN: Dropping unused variable b [test/compress/loops.js:2,16]",
    ]
}

empty_for_in_side_effects: {
    options = {
        loops: true,
        toplevel: true,
        unused: true,
    }
    input: {
        for (var a in {
            foo: console.log("PASS")
        }) {
            var b = a + "bar";
        }
    }
    expect: {
        console.log("PASS");
    }
    expect_stdout: "PASS"
    expect_warnings: [
        "WARN: Dropping unused variable b [test/compress/loops.js:4,16]",
        "INFO: Dropping unused loop variable a [test/compress/loops.js:1,17]",
        "WARN: Side effects in object of for-in loop [test/compress/loops.js:1,17]",
    ]
}

issue_3631_1: {
    options = {
        dead_code: true,
        evaluate: true,
        loops: true,
        reduce_vars: true,
        toplevel: true,
        unused: true,
    }
    input: {
        var c = 0;
        L: do {
            for (;;) continue L;
            var b = 1;
        } while (b && c++);
        console.log(c);
    }
    expect: {
        var c = 0;
        do {
            var b;
        } while (b && c++);
        console.log(c);
    }
    expect_stdout: "0"
}

issue_3631_2: {
    options = {
        dead_code: true,
        evaluate: true,
        loops: true,
        reduce_vars: true,
        toplevel: true,
        unused: true,
    }
    input: {
        L: for (var a = 1; a--; console.log(b)) {
            for (;;) continue L;
            var b = "FAIL";
        }
    }
    expect: {
        for (var a = 1; a--; console.log(b))
            var b;
    }
    expect_stdout: "undefined"
}

loop_if_break: {
    options = {
        dead_code: true,
        loops: true,
    }
    input: {
        function f(a, b) {
            try {
                while (a) {
                    if (b) {
                        break;
                        var c = 42;
                        console.log(c);
                    } else {
                        var d = false;
                        throw d;
                    }
                }
            } catch (e) {
                console.log("E:", e);
            }
            console.log(a, b, c, d);
        }
        f(0, 0);
        f(0, 1);
        f(1, 0);
        f(1, 1);
    }
    expect: {
        function f(a, b) {
            try {
                for (;a && !b;) {
                    var d = false;
                    throw d;
                    var c;
                }
            } catch (e) {
                console.log("E:", e);
            }
            console.log(a, b, c, d);
        }
        f(0, 0);
        f(0, 1);
        f(1, 0);
        f(1, 1);
    }
    expect_stdout: [
        "0 0 undefined undefined",
        "0 1 undefined undefined",
        "E: false",
        "1 0 undefined false",
        "1 1 undefined undefined",
    ]
}

loop_return: {
    options = {
        dead_code: true,
        loops: true,
    }
    input: {
        function f(a) {
            while (a) return 42;
            return "foo";
        }
        console.log(f(0), f(1));
    }
    expect: {
        function f(a) {
            if (a) return 42;
            return "foo";
        }
        console.log(f(0), f(1));
    }
    expect_stdout: "foo 42"
}

issue_3634_1: {
    options = {
        loops: true,
    }
    input: {
        var b = 0;
        L: while (++b < 2)
            while (1)
                if (b) break L;
        console.log(b);
    }
    expect: {
        var b = 0;
        L: for (;++b < 2;)
            for (;1;)
                if (b) break L;
        console.log(b);
    }
    expect_stdout: "1"
}

issue_3634_2: {
    options = {
        loops: true,
    }
    input: {
        var b = 0;
        L: while (++b < 2)
            while (1)
                if (!b)
                    continue L;
                else
                    break L;
        console.log(b);
    }
    expect: {
        var b = 0;
        L: for (;++b < 2;)
            for (;1;)
                if (!b)
                    continue L;
                else
                    break L;
        console.log(b);
    }
    expect_stdout: "1"
}