982c8d0af9
* Add suggestion diagnostics for unused label and unreachable code * Always error on unused left hand side of comma
54 lines
986 B
TypeScript
54 lines
986 B
TypeScript
// @allowUnreachableCode: false
|
|
var xx: any;
|
|
var yy: any;
|
|
|
|
function fn() {
|
|
let arr: any[] = [];
|
|
switch(arr.length) {
|
|
// Should error
|
|
case 0, 1:
|
|
return 'zero or one';
|
|
default:
|
|
return 'more than one';
|
|
}
|
|
}
|
|
|
|
// Should error
|
|
let x = Math.pow((3, 5), 2);
|
|
|
|
// Should error
|
|
let a = [(3 + 4), ((1 + 1, 8) * 4)];
|
|
|
|
// Error cases
|
|
xx = (1, 2);
|
|
xx = ('', xx);
|
|
xx = (/323/, 5);
|
|
xx = (`wat`, 'ok'),
|
|
xx = (true, false);
|
|
xx = (false, true);
|
|
xx = (null, xx);
|
|
xx = (undefined, 10);
|
|
xx = (() => {}, 'no');
|
|
xx = (function() { }, 100);
|
|
xx = ({}, {});
|
|
xx = (typeof xx, 'unused');
|
|
xx = ([1, 2, x++], xx);
|
|
xx = (xx!, xx);
|
|
xx = (xx ? 3 : 4, 10);
|
|
xx = (3 + 4, 10);
|
|
xx = (!xx, 10);
|
|
xx = (~xx, 10);
|
|
xx = (-xx, 10);
|
|
xx = (+xx, 10);
|
|
|
|
// OK cases
|
|
xx = (xx ? x++ : 4, 10);
|
|
xx = (--xx, 3);
|
|
xx = (xx = 3, 1);
|
|
xx = ((xx = 3), 5);
|
|
xx = (xx+= 4, xx);
|
|
xx = ((xx+= 4), xx);
|
|
xx = (Math.pow(3, 2), 4);
|
|
xx = (void xx, 10);
|
|
xx = (xx as any, 100);
|