Friendly ping.
> On 4 feb 2017, at 14:26, Marcwell Helpdesk <helpd...@marcwell.se> wrote:
>
> Many plugins/tools could benefit from having a generic way for communicating
> control directives directly from the source code to itself (via the AST) when
> acting, for example, as source code transformers, generators, collectors and
> the like. Attributes are a suitable way of doing this but most available
> attributes have predefined functionality and modifying the compiler for every
> plugin/tool is obviously not an option. There is however one undocumented but
> existing attribute that could be used for a generic solution if it was
> slightly modified and expanded - the annotate attribute.
>
> The current functionality of the annotate attribute encompass annotating
> declarations with arbitrary strings using the GNU spelling. The attached
> patch expands on this functionality by adding annotation of statements, C++11
> spelling and documentation. With the patch applied most of the code could be
> annotated for the use by any Clang plugin or tool. For a more detailed
> description of the updated attribute, see patch for "AttrDocs.td".
>
> An example demonstratiing the use and syntax of the updated attribute:
>
> class [[annotate("plain")]] Object
> { . . . };
>
> int main(int argc, char* argv[]) __attribute((annotate("entry-point")))
> {
> [[annotate("local_var")]] // Decl annotation
> int n = 1 ;
>
> // Multiple Stmt annotations
> [[annotate("group-A"), annotate("opt-1:2")]]
> switch(n)
> { . . . }
> return 0;
> }
>
> Cheers,
> Chris
>
> Modified:
> include/clang/Basic/Attr.td
> include/clang/Basic/AttrDocs.td
> lib/Sema/SemaStmtAttr.cpp
> Added:
> test/SemaCXX/attr-annotate.cpp
> <attrib-annotate.patch>
attrib-annotate.patch
Description: Binary data
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