src/Pure/axclass.ML

--- a/src/Pure/axclass.ML	Tue May 25 20:23:30 1999 +0200
+++ b/src/Pure/axclass.ML	Tue May 25 20:24:10 1999 +0200
@@ -30,10 +30,12 @@
     -> tactic option -> thm
   val goal_subclass: theory -> xclass * xclass -> thm list
   val goal_arity: theory -> xstring * xsort list * xclass -> thm list
-  val instance_subclass_proof: xclass * xclass -> bool -> theory -> ProofHistory.T
-  val instance_subclass_proof_i: class * class -> bool -> theory -> ProofHistory.T
-  val instance_arity_proof: xstring * xsort list * xclass -> bool -> theory -> ProofHistory.T
-  val instance_arity_proof_i: string * sort list * class -> bool -> theory -> ProofHistory.T
+  val instance_subclass_proof: (xclass * xclass) * Comment.text -> bool -> theory -> ProofHistory.T
+  val instance_subclass_proof_i: (class * class) * Comment.text -> bool -> theory -> ProofHistory.T
+  val instance_arity_proof: (xstring * xsort list * xclass) * Comment.text
+    -> bool -> theory -> ProofHistory.T
+  val instance_arity_proof_i: (string * sort list * class) * Comment.text
+    -> bool -> theory -> ProofHistory.T
   val setup: (theory -> theory) list
 end;
 
@@ -403,10 +405,10 @@
 
 fun inst_attribute add_thms (thy, thm) = (add_thms [thm] thy, thm);
 
-fun inst_proof mk_prop add_thms sig_prop int thy =
+fun inst_proof mk_prop add_thms (sig_prop, comment) int thy =
   thy
-  |> IsarThy.theorem_i "" [inst_attribute add_thms]
-    (mk_prop (Theory.sign_of thy) sig_prop, []) int;
+  |> IsarThy.theorem_i (("", [inst_attribute add_thms],
+    (mk_prop (Theory.sign_of thy) sig_prop, [])), comment) int;
 
 val instance_subclass_proof = inst_proof (mk_classrel oo intrn_classrel) add_classrel_thms;
 val instance_subclass_proof_i = inst_proof (K mk_classrel) add_classrel_thms;
@@ -430,13 +432,15 @@
 
 val axclassP =
   OuterSyntax.command "axclass" "define axiomatic type class" K.thy_decl
-    (P.name -- Scan.optional (P.$$$ "<" |-- P.!!! (P.list1 P.xname)) [] -- Scan.repeat P.spec_name
+    (((P.name -- Scan.optional (P.$$$ "<" |-- P.!!! (P.list1 P.xname)) []) --| P.marg_comment)
+      -- Scan.repeat (P.spec_name --| P.marg_comment)
       >> (fn (cls, axs) => Toplevel.theory (#1 o add_axclass cls axs)));
 
 val instanceP =
   OuterSyntax.command "instance" "prove type arity or subclass relation" K.thy_goal
-    ((P.xname -- (P.$$$ "<" |-- P.xname) >> instance_subclass_proof ||
-      P.xname -- (P.$$$ "::" |-- P.simple_arity) >> (instance_arity_proof o P.triple2))
+    ((P.xname -- (P.$$$ "<" |-- P.xname) -- P.marg_comment >> instance_subclass_proof ||
+      (P.xname -- (P.$$$ "::" |-- P.simple_arity) >> P.triple2) -- P.marg_comment
+        >> instance_arity_proof)
       >> (Toplevel.print oo Toplevel.theory_to_proof));
 
 val _ = OuterSyntax.add_parsers [axclassP, instanceP];