From: Lemmih <lemmih@gmail.com>
Date: Fri, 10 Mar 2006 01:10:35 +0000 (+0000)
Subject: Parse OPTIONS properly and cache the result.
X-Git-Url: http://git.megacz.com/?a=commitdiff_plain;h=d700953c29ffe78d6530f734f2820c796e5ec6e0;hp=d700953c29ffe78d6530f734f2820c796e5ec6e0;p=ghc-hetmet.git

Parse OPTIONS properly and cache the result.

Use the lexer to parse OPTIONS, LANGUAGE and INCLUDE pragmas.
This gives us greater flexibility and far better error
messages. However, I had to make a few quirks:
  * The token parser is written manually since Happy doesn't
    like lexer errors (we need to extract options before the
    buffer is passed through 'cpp'). Still better than
    manually parsing a String, though.
  * The StringBuffer API has been extended so files can be
    read in blocks.
I also made a new field in ModSummary called ms_hspp_opts
which stores the updated DynFlags. Oh, and I took the liberty
of moving 'getImports' into HeaderInfo together with
'getOptions'.
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