[cfe-dev] invoking clang lexer + parser only

[Richard Smith]

On Tue, Aug 28, 2012 at 6:13 AM, Ali Javadi <aj14889 at yahoo.com> wrote:

> I am writing a syntax checker for a new language using the clang
> front-end. I have added some keywords and some grammar rules, but I don't
> know how to invoke the tools down to the level of parsing only. I am merely
> interested in checking the correctness of syntax at the moment.
>
> I tried ParseAST(), but that returns a NULL pointer for the new type
> definitions, since their semantics are not defined. What other option do I
> have?
>

You could use clang's -fsyntax-only command-line argument to perform only
syntactic and semantic analysis steps. There are some other tips here:

http://clang.llvm.org/docs/InternalsManual.html#AddingExprStmt
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