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a major refactoring in the C and the Haskell runtimes. Note incompatible change in the PGF format!!!

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The following are the outcomes:

   - Predef.nonExist is fully supported by both the Haskell and the C runtimes

   - Predef.BIND is now an internal compiler defined token. For now
     it behaves just as usual for the Haskell runtime, i.e. it generates &+.
     However, the special treatment will let us to handle it properly in 
     the C runtime.

   - This required a major change in the PGF format since both 
     nonExist and BIND may appear inside 'pre' and this was not supported
     before.
This commit is contained in:
kr.angelov
2013-09-27 15:09:48 +00:00
parent 3f65253f0e
commit efa4bc4d62
30 changed files with 332 additions and 372 deletions
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6
src/compiler/GF/Compile/PGFtoPython.hs
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@@ -75,9 +75,9 @@ pySymbol :: Symbol -> String
pySymbol (SymCat n l) = pyTuple 0 show [n, l]
pySymbol (SymLit n l) = pyDict 0 pyStr id [("lit", pyTuple 0 show [n, l])]
pySymbol (SymVar n l) = pyDict 0 pyStr id [("var", pyTuple 0 show [n, l])]
pySymbol (SymKS ts) = prTList "," (map pyStr ts)
pySymbol (SymKP ts alts) = pyDict 0 pyStr id [("pre", pyList 0 pyStr ts), ("alts", pyList 0 alt2py alts)]
where alt2py (Alt ps ts) = pyTuple 0 (pyList 0 pyStr) [ps, ts]
pySymbol (SymKS t) = pyStr t
pySymbol (SymKP ts alts) = pyDict 0 pyStr id [("pre", pyList 0 pySymbol ts), ("alts", pyList 0 alt2py alts)]
where alt2py (ps,ts) = pyTuple 0 (pyList 0 pyStr) [map pySymbol ps, ts]
----------------------------------------------------------------------
-- python helpers