Once again I’m struggling with NativeBoost. I’m trying to use
optCoerceNilToNull with this function:
^self call: #(LGitReturnCodeEnum git_commit_create(
LGitId * theCommitId,
LGitRepository repo,
String update_ref,
LGitSignature * theAuthor,
LGitSignature * theCommitter,
String message_encoding,
String theMessage,
LGitTree theTree,
int parent_count,
LGitCommit * parentsPointer)) options: #( optCoerceNilToNull )
The last argument can be NULL, per documentation, (no parents).
LGitCommit is a subclass of NBExternalObject and apparently
NBExternalObjctType>>pushAsPointer: does *not* use the optCoerceNilToNull
option (the super implementation in NBExternalType>>pushAsPointer: however
does). The upshot of course is that the call fails with “an instance of
LGitCommit expected”.
My questions:
- The documentation says:
"#optCoerceNilToNull"
"passing nil as a pointer-type argument, converts it to C NULL “
but apparently this doesn’t apply to every pointer type. Should the
documentation be updated?
- Why does NBExternlObjectType not use optCoerceNilToNull? I don’t want to use
tricks to pass null if I don’t have to.
- Related: there are instances where even non-pointer arguments are allowed to
be NULL. Why does optCoerceNilToNull only work for pointer types?
Igor! Help! :)
Cheers,
Max
