496531 - Error message changed from "is not a function" to "is not defined"

Status: RESOLVED INVALID

(Core :: JavaScript Engine, defect)

Description

[Gary Kwong [:gkw] [:nth10sd] (NOT official MoCo now)]

$ cat ~/Desktop/s2.js 
let print; 
delete print; 
print(1);

This testcase outputs 

$ 21500/js-dbg-tm-intelmac ~/Desktop/s2.js 
/Users/skywalker/Desktop/s2.js:3: TypeError: print is not a function

with changeset 21500 (Nov 2008 dbg js shell build without -j) http://hg.mozilla.org/tracemonkey/rev/04c360f123e5

but outputs

$ 28939/js-dbg-tm-intelmac ~/Desktop/s2.js
/Users/skywalker/Desktop/s2.js:3: ReferenceError: print is not defined

with changeset 28939 (latest dbg js shell build without -j) http://hg.mozilla.org/tracemonkey/rev/6afc57314e74


Was the change from "is not a function" to "is not defined" intentional?

Comment 1

[Gary Kwong [:gkw] [:nth10sd] (NOT official MoCo now)]

(In reply to comment #0)
> Was the change from "is not a function" to "is not defined" intentional?

[12:40]  jorendorf> nth10sd: I think the semantics of global let changed intentionally.
[12:40]  jorendorf> nth10sd: That would explain it.

-> invalid, not a bug.