mirror of
https://github.com/RGBCube/serenity
synced 2025-07-27 04:27:45 +00:00
LibJS: Implement unary plus / minus
This commit is contained in:
parent
5e6e1fd482
commit
a62230770b
9 changed files with 73 additions and 25 deletions
|
@ -2,7 +2,7 @@ function assert(x) { if (!x) throw 1; }
|
|||
|
||||
try {
|
||||
assert(Math.abs('-1') === 1);
|
||||
assert(Math.abs(0 - 2) === 2);
|
||||
assert(Math.abs(-2) === 2);
|
||||
assert(Math.abs(null) === 0);
|
||||
assert(Math.abs('') === 0);
|
||||
assert(Math.abs([]) === 0);
|
||||
|
|
|
@ -22,7 +22,7 @@ try {
|
|||
assert(s.startsWith("foo", false) === true);
|
||||
assert(s.startsWith("foo", true) === false);
|
||||
assert(s.startsWith("foo", "foo") === true);
|
||||
assert(s.startsWith("foo", 0 - 1) === true);
|
||||
assert(s.startsWith("foo", -1) === true);
|
||||
assert(s.startsWith("foo", 42) === false);
|
||||
assert(s.startsWith("bar", 3) === true);
|
||||
assert(s.startsWith("bar", "3") === true);
|
||||
|
@ -31,7 +31,7 @@ try {
|
|||
assert(s.startsWith("") === true);
|
||||
assert(s.startsWith("", 0) === true);
|
||||
assert(s.startsWith("", 1) === true);
|
||||
assert(s.startsWith("", 0 - 1) === true);
|
||||
assert(s.startsWith("", -1) === true);
|
||||
assert(s.startsWith("", 42) === true);
|
||||
|
||||
console.log("PASS");
|
||||
|
|
|
@ -8,6 +8,8 @@ try {
|
|||
assert(!o.a === false);
|
||||
assert(!o.a === !(o.a));
|
||||
assert(~o.a === ~(o.a));
|
||||
assert(+o.a === +(o.a));
|
||||
assert(-o.a === -(o.a));
|
||||
|
||||
assert((typeof "x" === "string") === true);
|
||||
assert(!(typeof "x" === "string") === false);
|
||||
|
|
|
@ -1,31 +1,43 @@
|
|||
function assert(x) { if (!x) throw 1; }
|
||||
|
||||
// FIXME: Just "+x" doesn't parse currently,
|
||||
// so we use "x - 0", which is effectively the same.
|
||||
// "0 + x" would _not_ work in all cases.
|
||||
function n(x) { return x - 0; }
|
||||
|
||||
try {
|
||||
assert(n(false) === 0);
|
||||
assert(n(true) === 1);
|
||||
assert(n(null) === 0);
|
||||
assert(n([]) === 0);
|
||||
assert(n([[[[[]]]]]) === 0);
|
||||
assert(n([[[[[42]]]]]) === 42);
|
||||
assert(n("") === 0);
|
||||
assert(n("42") === 42);
|
||||
assert(n(42) === 42);
|
||||
assert(+false === 0);
|
||||
assert(-false === 0);
|
||||
assert(+true === 1);
|
||||
assert(-true === -1);
|
||||
assert(+null === 0);
|
||||
assert(-null === 0);
|
||||
assert(+[] === 0);
|
||||
assert(-[] === 0);
|
||||
assert(+[[[[[]]]]] === 0);
|
||||
assert(-[[[[[]]]]] === 0);
|
||||
assert(+[[[[[42]]]]] === 42);
|
||||
assert(-[[[[[42]]]]] === -42);
|
||||
assert(+"" === 0);
|
||||
assert(-"" === 0);
|
||||
assert(+"42" === 42);
|
||||
assert(-"42" === -42);
|
||||
assert(+42 === 42);
|
||||
assert(-42 === -42);
|
||||
// FIXME: returns NaN
|
||||
// assert(n("1.23") === 1.23)
|
||||
// assert(+"1.23" === 1.23)
|
||||
// assert(-"1.23" === -1.23)
|
||||
// FIXME: chokes on ASSERT
|
||||
// assert(n(1.23) === 1.23);
|
||||
// assert(+1.23 === 1.23);
|
||||
// assert(-1.23 === -1.23);
|
||||
|
||||
assert(isNaN(n(undefined)));
|
||||
assert(isNaN(n({})));
|
||||
assert(isNaN(n({a: 1})));
|
||||
assert(isNaN(n([1, 2, 3])));
|
||||
assert(isNaN(n([[[["foo"]]]])));
|
||||
assert(isNaN(n("foo")));
|
||||
assert(isNaN(+undefined));
|
||||
assert(isNaN(-undefined));
|
||||
assert(isNaN(+{}));
|
||||
assert(isNaN(-{}));
|
||||
assert(isNaN(+{a: 1}));
|
||||
assert(isNaN(-{a: 1}));
|
||||
assert(isNaN(+[1, 2, 3]));
|
||||
assert(isNaN(-[1, 2, 3]));
|
||||
assert(isNaN(+[[[["foo"]]]]));
|
||||
assert(isNaN(-[[[["foo"]]]]));
|
||||
assert(isNaN(+"foo"));
|
||||
assert(isNaN(-"foo"));
|
||||
|
||||
console.log("PASS");
|
||||
} catch (e) {
|
||||
|
|
Loading…
Add table
Add a link
Reference in a new issue