[commit: ghc] master: Refactor extension-bitmap in Lexer (b80d573)

[git at git.haskell.org]

Repository : ssh://git@git.haskell.org/ghc

On branch  : master
Link       : http://ghc.haskell.org/trac/ghc/changeset/b80d5739361b5879a25de8497ae08dd0bfdbf627/ghc

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commit b80d5739361b5879a25de8497ae08dd0bfdbf627
Author: Herbert Valerio Riedel <hvr at gnu.org>
Date:   Sat Jun 21 17:04:32 2014 +0200

    Refactor extension-bitmap in Lexer
    
    This introduces an Enum type `ExtBits` for the currently used 32 flags
    and introduces a type-synonym `ExtsBitmap` for representing a set over
    `ExtBits`. While at it, the current `Int` was replaced by `Word` to
    have the compiler catch any missed use-sites.
    
    This will make it easy to swap the `Word`-representation of `ExtsBitmap`
    by something different, such as e.g. a `Word64`
    
    Test Plan: successful validate
    
    Differential Revision: https://phabricator.haskell.org/D23


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b80d5739361b5879a25de8497ae08dd0bfdbf627
 compiler/parser/Lexer.x | 369 +++++++++++++++++++++++-------------------------
 1 file changed, 173 insertions(+), 196 deletions(-)

Diff suppressed because of size. To see it, use:

    git diff-tree --root --patch-with-stat --no-color --find-copies-harder --ignore-space-at-eol --cc b80d5739361b5879a25de8497ae08dd0bfdbf627