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| author |  Adam Chlipala <adamc@hcoop.net> | 2008-08-03 09:26:49 -0400 |
|---|---|---|
| committer | Adam Chlipala <adamc@hcoop.net> | 2008-08-03 09:26:49 -0400 |
| commit | 5e0563d3b00303d5053827e46811c93077455208 (patch) | |
| tree | 84de1a0972562b31942273587987b2a27f615d8b /src/mono_env.sml | |
| parent | 49c123050b2bc8a24f250fcc0d55e49484bc604c (diff) | |
First part of getting cases through monoize
Diffstat (limited to 'src/mono_env.sml')
| -rw-r--r-- | src/mono_env.sml | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/src/mono_env.sml b/src/mono_env.sml index 3a6a20ba..58544726 100644 --- a/src/mono_env.sml +++ b/src/mono_env.sml @@ -37,6 +37,7 @@ exception UnboundNamed of int type env = { datatypes : (string * (string * int * typ option) list) IM.map, + constructors : (string * typ option * int) IM.map, relE : (string * typ) list, namedE : (string * typ * exp option * string) IM.map @@ -44,6 +45,7 @@ type env = { val empty = { datatypes = IM.empty, + constructors = IM.empty, relE = [], namedE = IM.empty @@ -51,6 +53,9 @@ val empty = { fun pushDatatype (env : env) x n xncs = {datatypes = IM.insert (#datatypes env, n, (x, xncs)), + constructors = foldl (fn ((x, n, to), constructors) => + IM.insert (constructors, n, (x, to, n))) + (#constructors env) xncs, relE = #relE env, namedE = #namedE env} @@ -60,8 +65,14 @@ fun lookupDatatype (env : env) n = NONE => raise UnboundNamed n | SOME x => x +fun lookupConstructor (env : env) n = + case IM.find (#constructors env, n) of + NONE => raise UnboundNamed n + | SOME x => x + fun pushERel (env : env) x t = {datatypes = #datatypes env, + constructors = #constructors env, relE = (x, t) :: #relE env, namedE = #namedE env} @@ -72,6 +83,7 @@ fun lookupERel (env : env) n = fun pushENamed (env : env) x n t eo s = {datatypes = #datatypes env, + constructors = #constructors env, relE = #relE env, namedE = IM.insert (#namedE env, n, (x, t, eo, s))} |