47 lines
1.6 KiB
OCaml
47 lines
1.6 KiB
OCaml
(**************************************************************************)
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(* *)
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(* Lucid Synchrone *)
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(* *)
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(* Author : Marc Pouzet *)
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(* Organization : Demons, LRI, University of Paris-Sud, Orsay *)
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(* *)
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(**************************************************************************)
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(* $Id: cenvironment.ml,v 1.1 2006-03-18 08:04:25 pouzet Exp $ *)
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open Misc
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open Declarative
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(** Environment with static link **)
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type cblock =
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{ c_block: block; (* table of free names *)
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c_state: name; (* the name of the internal state *)
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c_write: name; (* temporary values *)
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}
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type env = cblock list
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let empty_env = []
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let current env = List.hd env
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let cblock env = (current env).c_block
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let statename env = (current env).c_state
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let push_block block env =
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{ c_block = block;
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c_state = symbol#name;
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c_write = symbol#name } :: env
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let push block env =
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if env = empty_env
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then push_block block env
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else let cblock = current env in
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{ cblock with c_block = block } :: env
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let rec findall env i =
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match env with
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[] -> raise Not_found
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| { c_block = b; c_state = st; c_write = wt } :: env ->
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try
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Hashtbl.find b.b_env i, st, wt
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with
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Not_found -> findall env i
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let find env i =
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let id, _, _ = findall env i in
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id
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