[Projects] XRM 50: Fix static_rand.

https://svn.lrde.epita.fr/svn/xrm/trunk Index: ChangeLog from SIGOURE Benoit &lt;sigoure.benoit(a)lrde.epita.fr&gt; Fix static_rand. * src/str/xrm-to-prism.str: Evaluate static_rand calls at the end of the transformation pipeline (that is, after meta-code evaluation). * src/str/prism-desugar.str: Evaluate static_rand in prism-desugar. * src/str/builtin-rand.str: Introduce EvalStaticRand. * TODO: Add something to do. TODO | 3 +++ src/str/builtin-rand.str | 2 +- src/str/prism-desugar.str | 2 ++ src/str/xrm-to-prism.str | 2 +- 4 files changed, 7 insertions(+), 2 deletions(-) Index: src/str/xrm-to-prism.str --- src/str/xrm-to-prism.str (revision 49) +++ src/str/xrm-to-prism.str (working copy) @@ -78,7 +78,7 @@ * This must come AFTER collect-static-const-decl since we might need * to expand an arrays which rely on static const variables. */ - ; topdown(try(array-decl-desugar)) + ; topdown(try(array-decl-desugar); try(EvalStaticRand)) ; notice-msg(|"xrm-to-prism: array declarations desugared") /* flatten nested lists */ Index: src/str/prism-desugar.str --- src/str/prism-desugar.str (revision 49) +++ src/str/prism-desugar.str (working copy) @@ -2,6 +2,7 @@ imports PRISM reals + builtin-rand strategies @@ -25,6 +26,7 @@ <+ EvalLt <+ EvalLtEq <+ EvalGt <+ EvalGtEq <+ EvalEq <+ EvalNotEq <+ EvalAnd <+ EvalOr <+ EvalMin <+ EvalMax <+ EvalFloor <+ EvalCeil <+ EvalPow <+ EvalMod + <+ (EvalStaticRand; IntToDouble) ) ; topdown(try(SimplifyDoubles <+ TruncateDouble)) Index: src/str/builtin-rand.str --- src/str/builtin-rand.str (revision 49) +++ src/str/builtin-rand.str (working copy) @@ -66,7 +66,7 @@ /* save this module in a DR for later retrieval */ ; rules(RandGenModules:+ _ -> rand-gen-module) - EvalRand: + EvalStaticRand: StaticRand(args) -> Int(rand-val) where check-rand-args(|"static_rand", args) => (from, to) ; rand(|<string-to-int> from, <string-to-int> to) Index: TODO --- TODO (revision 49) +++ TODO (working copy) @@ -30,6 +30,9 @@ static const int N = -1; will issue an error such as "undeclared meta variable N" whereas the real problem is that array[N] couldn't be expanded. + * Rewrite src/lib/native/rand.c in Stratego. (This has been written in C + because I failed to make it work properly in Stratego :|) + ## ---------- ## ## Extensions ## ## ---------- ##