bug-2043302-1.js - mozsearch

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load(libdir + "asserts.js");

registerModule('b', parseModule(`export const x = 1;`));

registerModule('d', parseModule(`export const x = 2;`));

registerModule('a', parseModule(`export * from 'b';\nexport * from 'd';`));

// c's star export of 'a' is at line 3 (two blank lines above)

registerModule('c', parseModule(`\n\nexport * from 'a';`));

// entry's import is at line 1

registerModule('entry', parseModule(`import { x } from 'c';`));

let caught = false;

import("entry").then(

  () => {

    assertEq(false, true, "expected import to fail");

},

  e => {

    caught = true;

    assertEq(e instanceof SyntaxError, true);

    assertEq(String(e.message).includes("ambiguous"), true);

    // Error must point to the import in 'entry' (line 1),

    // not to the star export in 'c' (line 3).

    assertEq(e.lineNumber, 1);

);

drainJobQueue();

assertEq(caught, true);