Objective-C Class instance variable list

[mjdecker]

After looking at some grammar specs for Objective-C, I noticed some additional items for the instance variables. Here is the grammar:

instance-variable-declaration:
  visibility-specification
  struct-declaration-list instance-variables
  instance-variable-declaration visibility-specification
  instance-variable-declaration struct-declaration-list instance-variables

visibility-specification:
  @private
  @protected
  @public

[mjdecker]

Ok. It looks like the visibility works like in C++, except the default seems to be protected (which I kind of like honestly).

[mjdecker]

Should have visibility specification working.
Need to test struct-declaration-list. Not completely sure what it is grammar wise, it does not say in what I found.

Slightly unrelated, I forgot this as part of the grammar.

instance-variables:
{ instance-variable-declaration }

[mjdecker]

It looks from the grammar though that you can have a block in the block with its own visibilities.

Not completely sure how it works (It think it should work like variable scopes with visibility) i.e. the following would be correct (except not having the struct-declaration-list whatever that is):

<class>@interface <name>class</name <block>{<protected type="default">
<decl_stmt><decl><type><name>foo</name></type> <name>bar</name></decl>;</decl_stmt>
<block>{<protected type="default">
</protected><private>@private
<decl_stmt><decl><type><name>int</name></type> <name>a</name></decl>;</decl_stmt>
</private>}</block>
</protected>}</block>
@end</class>

The additional default does not yet work (except when only whitespace between opening blocks, block is optional so I made it ()*, so it randomly works. If there is no new default scope then this will need to be removed).

[mjdecker]

Reading further a struct-declaration-list is a reference to the C language specification, which looks like just about any declaration.

[mjdecker]

I can not seem to get Xcode to have an inner block and since the grammar file I found is rather old, I am going to skip this for now. I will keep the issue open, but probably pull my current code.

[mjdecker]

Done with pull request #639.

[hmm34]

It sounds like this has been fixed, so I am closing in order to clean-up old bugs. Please re-open/re-create if needed.

[mjdecker]

All open Objective-C is waiting markup approval by @mlcollard.