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authorGravatar Stephane Glondu <steph@glondu.net>2011-12-25 13:19:42 +0100
committerGravatar Stephane Glondu <steph@glondu.net>2011-12-25 13:19:42 +0100
commit300293c119981054c95182a90c829058530a6b6f (patch)
treed7303613741c5796b58ced7db24ec7203327dbb2 /checker/environ.ml
parent9d27ae09786866b6e3d7b79d1fa7667e5e2aa309 (diff)
Imported Upstream version 8.3.pl3upstream/8.3.pl3
Diffstat (limited to 'checker/environ.ml')
-rw-r--r--checker/environ.ml21
1 files changed, 21 insertions, 0 deletions
diff --git a/checker/environ.ml b/checker/environ.ml
index a72aae91..f7dd46f8 100644
--- a/checker/environ.ml
+++ b/checker/environ.ml
@@ -111,6 +111,9 @@ let lookup_constant kn env =
Cmap_env.find kn env.env_globals.env_constants
let add_constant kn cs env =
+ if Cmap_env.mem kn env.env_globals.env_constants then
+ Printf.ksprintf anomaly "Constant %s is already defined"
+ (string_of_con kn);
let new_constants =
Cmap_env.add kn cs env.env_globals.env_constants in
let new_globals =
@@ -159,6 +162,9 @@ let lookup_mind kn env =
Mindmap_env.find kn env.env_globals.env_inductives
let add_mind kn mib env =
+ if Mindmap_env.mem kn env.env_globals.env_inductives then
+ Printf.ksprintf anomaly "Inductive %s is already defined"
+ (string_of_mind kn);
let new_inds = Mindmap_env.add kn mib env.env_globals.env_inductives in
let kn1,kn2 = user_mind kn,canonical_mind kn in
let new_inds_eq = if kn1=kn2 then
@@ -175,6 +181,9 @@ let add_mind kn mib env =
(* Modules *)
let add_modtype ln mtb env =
+ if MPmap.mem ln env.env_globals.env_modtypes then
+ Printf.ksprintf anomaly "Module type %s is already defined"
+ (string_of_mp ln);
let new_modtypes = MPmap.add ln mtb env.env_globals.env_modtypes in
let new_globals =
{ env.env_globals with
@@ -182,12 +191,24 @@ let add_modtype ln mtb env =
{ env with env_globals = new_globals }
let shallow_add_module mp mb env =
+ if MPmap.mem mp env.env_globals.env_modules then
+ Printf.ksprintf anomaly "Module %s is already defined"
+ (string_of_mp mp);
let new_mods = MPmap.add mp mb env.env_globals.env_modules in
let new_globals =
{ env.env_globals with
env_modules = new_mods } in
{ env with env_globals = new_globals }
+let shallow_remove_module mp env =
+ if not (MPmap.mem mp env.env_globals.env_modules) then
+ Printf.ksprintf anomaly "Module %s is unknown"
+ (string_of_mp mp);
+ let new_mods = MPmap.remove mp env.env_globals.env_modules in
+ let new_globals =
+ { env.env_globals with
+ env_modules = new_mods } in
+ { env with env_globals = new_globals }
let lookup_module mp env =
MPmap.find mp env.env_globals.env_modules