replace_index: {
    options = {
        arguments: true,
        evaluate: true,
        properties: true,
    }
    input: {
        var arguments = [];
        console.log(arguments[0]);
        (function() {
            console.log(arguments[1], arguments["1"], arguments["foo"]);
        })("bar", 42);
        (function(a, b) {
            console.log(arguments[1], arguments["1"], arguments["foo"]);
        })("bar", 42);
        (function(arguments) {
            console.log(arguments[1], arguments["1"], arguments["foo"]);
        })("bar", 42);
        (function() {
            var arguments;
            console.log(arguments[1], arguments["1"], arguments["foo"]);
        })("bar", 42);
    }
    expect: {
        var arguments = [];
        console.log(arguments[0]);
        (function() {
            console.log(arguments[1], arguments[1], arguments.foo);
        })("bar", 42);
        (function(a, b) {
            console.log(b, b, arguments.foo);
        })("bar", 42);
        (function(arguments) {
            console.log(arguments[1], arguments[1], arguments.foo);
        </td></tr></table>
<table class='tabs'><tr><td>
<a href='/guix/about/'>about</a><a href='/guix/'>summary</a><a href='/guix/refs/?id=cc45017211888b2ee245a06dcc22494d526bdcaf'>refs</a><a href='/guix/log/gnu'>log</a><a href='/guix/tree/gnu?id=cc45017211888b2ee245a06dcc22494d526bdcaf'>tree</a><a href='/guix/commit/gnu?id=cc45017211888b2ee245a06dcc22494d526bdcaf'>commit</a><a class='active' href='/guix/diff/gnu?id=cc45017211888b2ee245a06dcc22494d526bdcaf&amp;id2=f3a9c701ac18ba9023f6d96629f9d8bb2df67a40'>diff</a></td><td class='form'><form class='right' method='get' action='/guix/log/gnu'>
<input type='hidden' name='id' value='cc45017211888b2ee245a06dcc22494d526bdcaf'/><input type='hidden' name='id2' value='f3a9c701ac18ba9023f6d96629f9d8bb2df67a40'/><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='/guix/diff/?id=cc45017211888b2ee245a06dcc22494d526bdcaf&amp;id2=f3a9c701ac18ba9023f6d96629f9d8bb2df67a40'>root</a>/<a href='/guix/diff/gnu?id=cc45017211888b2ee245a06dcc22494d526bdcaf&amp;id2=f3a9c701ac18ba9023f6d96629f9d8bb2df67a40'>gnu</a></div><div class='content'><div class='cgit-panel'><b>diff options</b><form method='get'><input type='hidden' name='id' value='cc45017211888b2ee245a06dcc22494d526bdcaf'/><input type='hidden' name='id2' value='f3a9c701ac18ba9023f6d96629f9d8bb2df67a40'/><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='/guix/diff/?id=cc45017211888b2ee245a06dcc22494d526bdcaf&amp;id2=f3a9c701ac18ba9023f6d96629f9d8bb2df67a40'>Diffstat</a> (limited to 'gnu')</div><table summary='diffstat' class='diffstat'> expect: {
        "use strict";
        (function(argument_0, argument_1) {
            console.log(argument_1, argument_1, arguments.foo);
        })("bar", 42);
        (function(a, b) {
            console.log(b, b, arguments.foo);
        })("bar", 42);
    }
    expect_stdout: [
        "42 42 undefined",
        "42 42 undefined",
    ]
}

modified: {
    options = {
        arguments: true,
    }
    input: {
        (function(a, b) {
            var c = arguments[0];
            var d = arguments[1];
            var a = "foo";
            b++;
            arguments[0] = "moo";
            arguments[1] *= 2;
            console.log(a, b, c, d, arguments[0], arguments[1]);
        })("bar", 42);
    }
    expect: {
        (function(a, b) {
            var c = a;
            var d = b;
            var a = "foo";
            b++;
            a = "moo";
            b *= 2;
            console.log(a, b, c, d, a, b);
        })("bar", 42);
    }
    expect_stdout: "moo 86 bar 42 moo 86"
}

modified_strict: {
    options = {
        arguments: true,
        reduce_vars: true,
    }
    input: {
        "use strict";
        (function(a, b) {
            var c = arguments[0];
            var d = arguments[1];
            var a = "foo";
            b++;
            arguments[0] = "moo";
            arguments[1] *= 2;
            console.log(a, b, c, d, arguments[0], arguments[1]);
        })("bar", 42);
    }
    expect: {
        "use strict";
        (function(a, b) {
            var c = arguments[0];
            var d = arguments[1];
            var a = "foo";
            b++;
            arguments[0] = "moo";
            arguments[1] *= 2;
            console.log(a, b, c, d, arguments[0], arguments[1]);
        })("bar", 42);
    }
    expect_stdout: "foo 43 bar 42 moo 84"
}

duplicate_argname: {
    options = {
        arguments: true,
    }
    input: {
        (function(a, b, a) {
            console.log(a, b, arguments[0], arguments[1], arguments[2]);
        })("foo", 42, "bar");
    }
    expect: {
        (function(a, b, a) {
            console.log(a, b, arguments[0], b, a);
        })("foo", 42, "bar");
    }
    expect_stdout: "bar 42 foo 42 bar"
}

issue_3273: {
    options = {
        arguments: true,
    }
    input: {
        function f(a) {
            console.log(arguments[0], a);
            arguments[0]++;
            console.log(arguments[0], a);
        }
        f(0);
    }
    expect: {
        function f(a) {
            console.log(a, a);
            a++;
            console.log(a, a);
        }
        f(0);
    }
    expect_stdout: [
        "0 0",
        "1 1",
    ]
}

issue_3273_reduce_vars: {
    options = {
        arguments: true,
        reduce_vars: true,
    }
    input: {
        function f(a) {
            console.log(arguments[0], a);
            arguments[0]++;
            console.log(arguments[0], a);
        }
        f(0);
    }
    expect: {
        function f(a) {
            console.log(a, a);
            a++;
            console.log(a, a);
        }
        f(0);
    }
    expect_stdout: [
        "0 0",
        "1 1",
    ]
}

issue_3273_local_strict: {
    options = {
        arguments: true,
    }
    input: {
        function f(a) {
            "use strict";
            console.log(arguments[0], a);
            arguments[0]++;
            console.log(arguments[0], a);
        }
        f(0);
    }
    expect: {
        function f(a) {
            "use strict";
            console.log(arguments[0], a);
            arguments[0]++;
            console.log(arguments[0], a);
        }
        f(0);
    }
    expect_stdout: [
        "0 0",
        "1 0",
    ]
}

issue_3273_local_strict_reduce_vars: {
    options = {
        arguments: true,
        reduce_vars: true,
    }
    input: {
        function f(a) {
            "use strict";
            console.log(arguments[0], a);
            arguments[0]++;
            console.log(arguments[0], a);
        }
        f(0);
    }
    expect: {
        function f(a) {
            "use strict";
            console.log(arguments[0], a);
            arguments[0]++;
            console.log(arguments[0], a);
        }
        f(0);
    }
    expect_stdout: [
        "0 0",
        "1 0",
    ]
}

issue_3273_global_strict: {
    options = {
        arguments: true,
    }
    input: {
        "use strict";
        function f(a) {
            console.log(arguments[0], a);
            arguments[0]++;
            console.log(arguments[0], a);
        }
        f(0);
    }
    expect: {
        "use strict";
        function f(a) {
            console.log(arguments[0], a);
            arguments[0]++;
            console.log(arguments[0], a);
        }
        f(0);
    }
    expect_stdout: [
        "0 0",
        "1 0",
    ]
}

issue_3273_global_strict_reduce_vars: {
    options = {
        arguments: true,
        reduce_vars: true,
    }
    input: {
        "use strict";
        function f(a) {
            console.log(arguments[0], a);
            arguments[0]++;
            console.log(arguments[0], a);
        }
        f(0);
    }
    expect: {
        "use strict";
        function f(a) {
            console.log(arguments[0], a);
            arguments[0]++;
            console.log(arguments[0], a);
        }
        f(0);
    }
    expect_stdout: [
        "0 0",
        "1 0",
    ]
}

issue_3273_keep_fargs_false: {
    options = {
        arguments: true,
        keep_fargs: false,
        reduce_vars: true,
    }
    input: {
        (function() {
            "use strict";
            arguments[0]++;
            console.log(arguments[0]);
        })(0);
    }
    expect: {
        (function(argument_0) {
            "use strict";
            argument_0++;
            console.log(argument_0);
        })(0);
    }
    expect_stdout: "1"
}

issue_3273_keep_fargs_strict: {
    options = {
        arguments: true,
        keep_fargs: "strict",
        reduce_vars: true,
    }
    input: {
        (function() {
            "use strict";
            arguments[0]++;
            console.log(arguments[0]);
        })(0);
    }
    expect: {
        (function(argument_0) {
            "use strict";
            argument_0++;
            console.log(argument_0);
        })(0);
    }
    expect_stdout: "1"
}

issue_3282_1: {
    options = {
        arguments: true,
        reduce_funcs: true,
        reduce_vars: true,
        keep_fargs: false,
        unused: true,
    }
    input: {
        (function(t) {
            return function() {
                t();
            };
        })(function() {
            'use strict';
            function e() {
                return arguments[0];
            }
            e();
            e();
        })();
    }
    expect: {
        (function() {
            return function() {
                (function() {
                    "use strict";
                    function e() {
                        return arguments[0];
                    }
                    e();
                    e();
                })();
            };
        })()();
    }
    expect_stdout: true
}

issue_3282_1_passes: {
    options = {
        arguments: true,
        passes: 2,
        reduce_funcs: true,
        reduce_vars: true,
        keep_fargs: false,
        unused: true,
    }
    input: {
        (function(t) {
            return function() {
                t();
            };
        })(function() {
            'use strict';
            function e() {
                return arguments[0];
            }
            e();
            e();
        })();
    }
    expect: {
        (function() {
            return function() {
                (function() {
                    "use strict";
                    function e(argument_0) {
                        return argument_0;
                    }
                    e();
                    e();
                })();
            };
        })()();
    }
    expect_stdout: true
}

issue_3282_2: {
    options = {
        arguments: true,
        reduce_vars: true,
        keep_fargs: false,
        unused: true,
    }
    input: {
        (function(f) {
            f();
        })(function() {
            return (function(t) {
                return function() {
                    t();
                };
            })(function() {
                'use strict';
                function e() {
                    return arguments[0];
                }
                e();
                e();
            })();
        });
    }
    expect: {
        (function() {
            (function() {
                return function(t) {
                    return function() {
                        t();
                    };
                }(function() {
                    "use strict";
                    function e() {
                        return arguments[0];
                    }
                    e();
                    e();
                })();
            })();
        })();
    }
    expect_stdout: true
}

issue_3282_2_passes: {
    options = {
        arguments: true,
        passes: 2,
        reduce_vars: true,
        keep_fargs: false,
        unused: true,
    }
    input: {
        (function(f) {
            f();
        })(function() {
            return (function(t) {
                return function() {
                    t();
                };
            })(function() {
                'use strict';
                function e() {
                    return arguments[0];
                }
                e();
                e();
            })();
        });
    }
    expect: {
        (function() {
            (function() {
                return function(t) {
                    return function() {
                        t();
                    };
                }(function() {
                    "use strict";
                    function e(argument_0) {
                        return argument_0;
                    }
                    e();
                    e();
                })();
            })();
        })();
    }
    expect_stdout: true
}

issue_3420_1: {
    options = {
        arguments: true,
        keep_fargs: "strict",
    }
    input: {
        console.log(function() {
            return function() {
                return arguments[0];
            };
        }().length);
    }
    expect: {
        console.log(function() {
            return function() {
                return arguments[0];
            };
        }().length);
    }
    expect_stdout: "0"
}

issue_3420_2: {
    options = {
        arguments: true,
        keep_fargs: "strict",
    }
    input: {
        var foo = function() {
            delete arguments[0];
        };
        foo();
    }
    expect: {
        var foo = function() {
            delete arguments[0];
        };
        foo();
    }
    expect_stdout: true
}

issue_3420_3: {
    options = {
        arguments: true,
        keep_fargs: "strict",
    }
    input: {
        "use strict";
        var foo = function() {
            delete arguments[0];
        };
        foo();
    }
    expect: {
        "use strict";
        var foo = function() {
            delete arguments[0];
        };
        foo();
    }
    expect_stdout: true
}

issue_3420_4: {
    options = {
        arguments: true,
        keep_fargs: "strict",
    }
    input: {
        !function() {
            console.log(arguments[0]);
            delete arguments[0];
            console.log(arguments[0]);
        }(42);
    }
    expect: {
        !function(argument_0) {
            console.log(argument_0);
            delete arguments[0];
            console.log(arguments[0]);
        }(42);
    }
    expect_stdout: [
        "42",
        "undefined",
    ]
}

issue_3420_5: {
    options = {
        arguments: true,
        keep_fargs: "strict",
    }
    input: {
        "use strict";
        !function() {
            console.log(arguments[0]);
            delete arguments[0];
            console.log(arguments[0]);
        }(42);
    }
    expect: {
        "use strict";
        !function(argument_0) {
            console.log(argument_0);
            delete arguments[0];
            console.log(arguments[0]);
        }(42);
    }
    expect_stdout: [
        "42",
        "undefined",
    ]
}

issue_3420_6: {
    options = {
        arguments: true,
        keep_fargs: "strict",
    }
    input: {
        console.log(function() {
            return delete arguments[0];
        }());
    }
    expect: {
        console.log(function() {
            return delete arguments[0];
        }());
    }
    expect_stdout: "true"
}

issue_3420_7: {
    options = {
        arguments: true,
        keep_fargs: "strict",
    }
    input: {
        "use strict";
        console.log(function() {
            return delete arguments[0];
        }());
    }
    expect: {
        "use strict";
        console.log(function() {
            return delete arguments[0];
        }());
    }
    expect_stdout: "true"
}