Yeah, I saw there are also checks in SymbolFileDWARF.cpp for "id",
"Class" and "SEL" but at least those are behind ObjC language checks.
The platform we're running on doesn't support ObjC. From what I can see
these checks in ClangASTSource do no language checking so are applied to
everything regardless.
Colin
On 06/03/2014 23:07, Greg Clayton wrote:
What Jim said was true, but I believe it goes a bit further. If we are asked to lookup "id" or
"Class", we will find something in the DWARF which will cause a type to be created which isn't compatible
with the internally defined "id" and "Class" that the compiler knows about for Objective C. Then
this causes problems evaluating expressions...
What platform are you running your expressions on? We might be able to disable objective C for
platforms that don't support it (ObjC should be enabled for anything that is
"*-apple-macosx" or "*-apple-ios").
Greg
On Mar 6, 2014, at 8:41 AM, Colin Riley <[email protected]> wrote:
Hey folks,
I'm interested in the following code in ClangASTSource.cpp -
ClangASTSource::FindExternalVisibleDecls(), around line 605.
...
static ConstString id_name("id");
static ConstString Class_name("Class");
if (name == id_name || name == Class_name)
return;
...
Is this a legacy bit of ObjC early exit magic? I've been wondering why
expression evaluation was failing only ever on variables called 'id' ;) I don't
have the ability to validate implications of removal of the code on ObjC. Any
opinions on whether this is actually still needed?
Colin
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