TypeError: Cannot read property 'declarations' of undefined

[andy-hanson]

The following code (in file Foo.ts) causes the compiler to crash:

import Foo From './Foo'
export default Foo

(Yes, that's a capitalized From and it tries to export itself.)

The error is:

TypeError: Cannot read property 'declarations' of undefined
    at /home/andy/git/TYPESCRIPT/node_modules/typescript/lib/tsc.js:13033:58
    at Object.forEach (/home/andy/git/TYPESCRIPT/node_modules/typescript/lib/tsc.js:98:30)
    at buildVisibleNodeList (/home/andy/git/TYPESCRIPT/node_modules/typescript/lib/tsc.js:13023:20)
    at Object.collectLinkedAliases (/home/andy/git/TYPESCRIPT/node_modules/typescript/lib/tsc.js:13019:17)
    at emitExportAssignment (/home/andy/git/TYPESCRIPT/node_modules/typescript/lib/tsc.js:24594:38)
    at emitNode (/home/andy/git/TYPESCRIPT/node_modules/typescript/lib/tsc.js:25513:28)
    at emitLines (/home/andy/git/TYPESCRIPT/node_modules/typescript/lib/tsc.js:24406:17)
    at emitSourceFile (/home/andy/git/TYPESCRIPT/node_modules/typescript/lib/tsc.js:24558:13)
    at /home/andy/git/TYPESCRIPT/node_modules/typescript/lib/tsc.js:24242:17
    at Object.forEach (/home/andy/git/TYPESCRIPT/node_modules/typescript/lib/tsc.js:98:30)

Tested on typescript 1.8.0-dev.20160109.

[vladima]

good catch, thanks!
repro without syntax errors (compile with -d)

// a.ts
import Foo = SomeNonExistingName
export {Foo}