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| author |  Adam Chlipala <adamc@hcoop.net> | 2008-08-08 10:28:32 -0400 |
|---|---|---|
| committer | Adam Chlipala <adamc@hcoop.net> | 2008-08-08 10:28:32 -0400 |
| commit | baf22271ef6e646c97ddfa1e4193a8857816c67d (patch) | |
| tree | 1d34bf6404d3e94e6862c5fedbc4e53ed6bab883 /src/expl_env.sml | |
| parent | 51fd5b1af6b2af7706c0c8604129d99e504a2d36 (diff) | |
Parametrized datatypes through explify
Diffstat (limited to 'src/expl_env.sml')
| -rw-r--r-- | src/expl_env.sml | 73 |
1 files changed, 56 insertions, 17 deletions
diff --git a/src/expl_env.sml b/src/expl_env.sml index 359c92a3..9d715c1b 100644 --- a/src/expl_env.sml +++ b/src/expl_env.sml @@ -239,24 +239,42 @@ fun lookupStrNamed (env : env) n = fun declBinds env (d, loc) = case d of DCon (x, n, k, c) => pushCNamed env x n k (SOME c) - | DDatatype (x, n, xncs) => + | DDatatype (x, n, xs, xncs) => let val env = pushCNamed env x n (KType, loc) NONE in - foldl (fn ((x', n', NONE), env) => pushENamed env x' n' (CNamed n, loc) - | ((x', n', SOME t), env) => pushENamed env x' n' (TFun (t, (CNamed n, loc)), loc)) - env xncs + foldl (fn ((x', n', to), env) => + let + val t = + case to of + NONE => (CNamed n, loc) + | SOME t => (TFun (t, (CNamed n, loc)), loc) + val k = (KType, loc) + val t = foldr (fn (x, t) => (TCFun (x, k, t), loc)) t xs + in + pushENamed env x' n' t + end) + env xncs end - | DDatatypeImp (x, n, m, ms, x', xncs) => + | DDatatypeImp (x, n, m, ms, x', xs, xncs) => let val t = (CModProj (m, ms, x'), loc) val env = pushCNamed env x n (KType, loc) (SOME t) val t = (CNamed n, loc) in - foldl (fn ((x', n', NONE), env) => pushENamed env x' n' t - | ((x', n', SOME t'), env) => pushENamed env x' n' (TFun (t', t), loc)) - env xncs + foldl (fn ((x', n', to), env) => + let + val t = + case to of + NONE => (CNamed n, loc) + | SOME t => (TFun (t, (CNamed n, loc)), loc) + val k = (KType, loc) + val t = foldr (fn (x, t) => (TCFun (x, k, t), loc)) t xs + in + pushENamed env x' n' t + end) + env xncs end | DVal (x, n, t, _) => pushENamed env x n t | DValRec vis => foldl (fn ((x, n, t, _), env) => pushENamed env x n t) env vis @@ -269,21 +287,42 @@ fun sgiBinds env (sgi, loc) = case sgi of SgiConAbs (x, n, k) => pushCNamed env x n k NONE | SgiCon (x, n, k, c) => pushCNamed env x n k (SOME c) - | SgiDatatype (x, n, xncs) => + | SgiDatatype (x, n, xs, xncs) => let val env = pushCNamed env x n (KType, loc) NONE in - foldl (fn ((x', n', NONE), env) => pushENamed env x' n' (CNamed n, loc) - | ((x', n', SOME t), env) => pushENamed env x' n' (TFun (t, (CNamed n, loc)), loc)) - env xncs + foldl (fn ((x', n', to), env) => + let + val t = + case to of + NONE => (CNamed n, loc) + | SOME t => (TFun (t, (CNamed n, loc)), loc) + val k = (KType, loc) + val t = foldr (fn (x, t) => (TCFun (x, k, t), loc)) t xs + in + pushENamed env x' n' t + end) + env xncs end - | SgiDatatypeImp (x, n, m1, ms, x', xncs) => + | SgiDatatypeImp (x, n, m1, ms, x', xs, xncs) => let - val env = pushCNamed env x n (KType, loc) (SOME (CModProj (m1, ms, x'), loc)) + val t = (CModProj (m1, ms, x'), loc) + val env = pushCNamed env x n (KType, loc) (SOME t) + + val t = (CNamed n, loc) in - foldl (fn ((x', n', NONE), env) => pushENamed env x' n' (CNamed n, loc) - | ((x', n', SOME t), env) => pushENamed env x' n' (TFun (t, (CNamed n, loc)), loc)) - env xncs + foldl (fn ((x', n', to), env) => + let + val t = + case to of + NONE => (CNamed n, loc) + | SOME t => (TFun (t, (CNamed n, loc)), loc) + val k = (KType, loc) + val t = foldr (fn (x, t) => (TCFun (x, k, t), loc)) t xs + in + pushENamed env x' n' t + end) + env xncs end | SgiVal (x, n, t) => pushENamed env x n t | SgiSgn (x, n, sgn) => pushSgnNamed env x n sgn |