211288 - void nsTemplateMap::Init doesn't check the return value of PL_DHashTableInit

Status: RESOLVED DUPLICATE of bug 911246

(Core :: XUL, defect)

Description

[timeless]

This is a code inspection bug.

QA:
To verify that this bug is fixed, make sure that all callers in of 
PL_DHashTableInit in the indicated class/file check and handle a failure return 
result.
To verify that this bug is invalid, simply verify (e.g. with lxr) that 
PL_DHashTableInit is no longer used by the indicated class/file.

PL_DHashTableInit returns a PRBool indicating whether it succeeded. 
PL_DHashTableInit *can* fail. Code can not assume that table->ops or table-
>data will be null (in fact it probably will not be), although in all 
likelyhood table->entryStore will be null it probably isn't safe to assume this.

Code at time of bug filing:

  55     void
  56     Init() { PL_DHashTableInit(&mTable, PL_DHashGetStubOps(), nsnull, 
sizeof(Entry), PL_DHASH_MIN_SIZE); }

Comment 1

[timeless]

Attachment: patch

Comment 2

[David Baron :dbaron: (⌚️UTC-4, no longer working on Mozilla)]

Comment on attachment 128530 [details] [diff] [review]
patch

You can't return an nsresult from a void function.

You're also changing the semantics of the assertion in |Remove|.

While you're here, |Entry| ought to inherit from PLDHashEntryHdr so you can use
NS_STATIC_CAST rather than NS_REINTERPRET_CAST.

sr-

Comment 3

[Andrew McCreight [:mccr8] (PTO until 12-2)]

The init method is infallible now.