A fine-grain control of inlining at functor application via priority levels

  As said in CHANGES:

<<
  The inlining done during application of functors can now be controlled
  more precisely. In addition to the "!F G" syntax preventing any inlining,
  we can now use a priority level to select parameters to inline :
  "<30>F G" means "only inline in F the parameters whose levels are <= 30".
  The level of a parameter can be fixed by "Parameter Inline(30) foo".
  When levels aren't given, the default value is 100. One can also use
  the flag "Set Inline Level ..." to set a level.
>>

  Nota : the syntax "Parameter Inline(30) foo" is equivalent to
  "Set Inline Level 30. Parameter Inline foo.",
  and "Include <30>F G" is equivalent to "Set Inline Level 30. Include F G."

  For instance, in ZBinary, eq is @Logic.eq and should rather be inlined,
  while in BigZ, eq is (fun x y => [x]=[y]) and should rather not be inlined.
  We could achieve this behavior by setting a level such as 30 to the
  parameter eq, and then tweaking the current level when applying functors.

  This idea of levels might be too restrictive, we'll see, but at least
  the implementation of this change was quite simple. There might be
  situation where parameters cannot be linearly ordered according to their
  "inlinablility". For these cases, we would need to mention names to inline
  or not at a functor application, and this is a bit more tricky
  (and might be a pain to use if there are many names).

  No documentation for the moment, since this feature is experimental
  and might still evolve.

git-svn-id: svn+ssh://scm.gforge.inria.fr/svn/coq/trunk@13807 85f007b7-540e-0410-9357-904b9bb8a0f7

1 files changed, 5 insertions, 4 deletions

diff --git a/kernel/mod_subst.mli b/kernel/mod_subst.mli
index 7164d1162..91139985b 100644
--- a/kernel/mod_subst.mli
+++ b/kernel/mod_subst.mli
@@ -19,10 +19,11 @@ type substitution
 
 val empty_delta_resolver : delta_resolver
 
-val add_inline_delta_resolver : constant -> delta_resolver -> delta_resolver
+val add_inline_delta_resolver :
+  constant -> int -> delta_resolver -> delta_resolver
 
-val add_inline_constr_delta_resolver :  constant -> constr -> delta_resolver 
-  -> delta_resolver
+val add_inline_constr_delta_resolver :
+  constant -> int -> constr -> delta_resolver -> delta_resolver
 
 val add_constant_delta_resolver : constant -> delta_resolver -> delta_resolver
 
@@ -50,7 +51,7 @@ val mind_of_delta : delta_resolver -> mutual_inductive -> mutual_inductive
 val delta_of_mp : delta_resolver -> module_path -> module_path
 
 (** Extract the set of inlined constant in the resolver *)
-val inline_of_delta : delta_resolver -> kernel_name list
+val inline_of_delta : int option -> delta_resolver -> (int * kernel_name) list
 
 (** remove_mp is used for the computation of a resolver induced by Include P *)
 val remove_mp_delta_resolver : delta_resolver -> module_path -> delta_resolver