statements: {
    options = {
        hoist_funs: false,
        hoist_vars: true,
    }
    input: {
        function f() {
            var a = 1;
            var b = 2;
            var c = 3;
            function g() {}
            return g(a, b, c);
        }
    }
    expect: {
        function f() {
            var a = 1, b = 2, c = 3;
            function g() {}
            return g(a, b, c);
        }
    }
}

statements_funs: {
    options = {
        hoist_funs: true,
        hoist_vars: true,
    }
    input: {
        function f() {
            var a = 1;
            var b = 2;
            var c = 3;
            function g() {}
            return g(a, b, c);
        }
    }
    expect: {
        function f() {
            function g() {}
            var a = 1, b = 2, c = 3;
            return g(a, b, c);
        }
    }
}

sequences: {
    options = {
        hoist_funs: false,
        hoist_vars: true,
    }
    input: {
        function f() {
            var a = 1, b = 2;
            function g() {}
            var c = 3;
            return g(a, b, c);
        }
    }
    expect: {
        function f() {
            var c, a = 1, b = 2;
            function g() {}
            c = 3;
            return g(a, b, c);
        }
    }
}

sequences_funs: {
    options = {
        hoist_funs: true,
        hoist_vars: true,
    }
    input: {
        function f() {
            var a = 1, b = 2;
            function g() {}
            var c = 3;
            return g(a, b, c);
        }
    }
    expect: {
        function f() {
            function g() {}
            var a = 1, b = 2, c = 3;
            return g(a, b, c);
        }
    }
}

catch_var: {
    options = {
        dead_code: true,
        hoist_vars: true,
        side_effects: true,
        toplevel: true,
        unused: true,
    }
    input: {
        var a = "PASS";
        try {
            a;
        } catch (a) {
            var a = 0;
            a;
        }
        console.log(a);
    }
    expect: {
        var a = "PASS";
        console.log(a);
    }
    expect_stdout: "PASS"
}

issue_2295: {
    options = {
        collapse_vars: true,
        hoist_vars: true,
    }
    input: {
        function foo(o) {
            var a = o.a;
            if (a) return a;
            var a = 1;
        }
    }
    expect: {
        function foo(o) {
            var a = o.a;
            if (a) return a;
            a = 1;
        }
    }
}

issue_4487: {
    options = {
        functions: true,
        hoist_vars: true,
        keep_fnames: true,
        reduce_vars: true,
        toplevel: true,
        unused: true,
    }
    input: {
        var a = function f() {
            var f = console.log(typeof f);
        };
        var b = a();
    }
    expect: {
        function a() {
            var a = console.log(typeof a);
        }
        a();
    }
    expect_stdout: "undefined"
}

issue_4489: {
    options = {
        collapse_vars: true,
        evaluate: true,
        hoist_vars: true,
        reduce_vars: true,
        toplevel: true,
        unused: true,
    }
    input: {
        A = 0;
        var o = !0 || null;
        for (var k in o);
        console.log(k);
    }
    expect: {
        !(A = 0);
        for (var k in true);
        console.log(k);
    }
    expect_stdout: "undefined"
}

issue_4517: {
    options = {
        collapse_vars: true,
        hoist_vars: true,
        join_vars: true,
        reduce_vars: true,
        unused: true,
    }
    input: {
        console.log(function() {
            var a = 2;
            A = a;
            var b = typeof !1;
            return A + b;
        }());
    }
    expect: {
        console.log(function() {
            var a = 2;
            A = a;
            return A + typeof !1;
        }());
    }
    expect_stdout: "2boolean"
}