duplicate-exports.js (1493B)
1 // Test errors due to duplicate exports 2 load(libdir + "asserts.js"); 3 4 function testSyntaxError(source) { 5 assertThrowsInstanceOf(function () { 6 parseModule(source); 7 }, SyntaxError); 8 } 9 10 // SyntexError due to duplicate exports 11 testSyntaxError("export var v; export var v;"); 12 testSyntaxError("export var x, y, z; export var y;"); 13 testSyntaxError("export let v; var w; export {w as v};"); 14 testSyntaxError("export const v; var w; export {w as v};"); 15 testSyntaxError("export var v; let w; export {w as v};"); 16 testSyntaxError("export var v; const w; export {w as v};"); 17 testSyntaxError("export default 1; export default 2;"); 18 testSyntaxError("export default 1; export default function() {};"); 19 testSyntaxError("export default 1; export default function foo() {};"); 20 testSyntaxError("var v; export {v}; export {v};"); 21 testSyntaxError("var v, x; export {v}; export {x as v};"); 22 testSyntaxError("export default 1; export default export class { constructor() {} };"); 23 testSyntaxError("export default 1; export default export class foo { constructor() {} };"); 24 25 // SyntaxError due to redeclared binding 26 testSyntaxError("export let v; export let v;"); 27 testSyntaxError("export let x, y, z; export let y;"); 28 testSyntaxError("export const v = 0; export const v = 0;"); 29 testSyntaxError("export const x = 0, y = 0, z = 0; export const y = 0;"); 30 testSyntaxError("export var v; export let v;"); 31 testSyntaxError("export var v; export const v = 0;"); 32 testSyntaxError("export let v; export const v;");