[cfe-dev] Should we build semantically invalid nodes?
akyrtzi at gmail.com
Thu Oct 23 10:47:43 PDT 2008
Sebastian Redl wrote:
> From a purely practical standpoint, and possibly a minor issue,
> disallowing the construction of AST elements for invalid code means
> that for EXTENSION-diagnostics I also have to check for
> -pedantic-errors myself and prevent AST construction in this case.
> I don't know how widespread use of those is. There's one in
This is an excellent example for that the syntax tree and the semantic
checks are somewhat orthogonal. The fact that a syntactic construct is
semantically valid or invalid based on a compiler flag, does not affect
the ability of Sema to handle it later on.
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