* interp/category.boot (SigOpsubsume): Remove as unused.

	(SourceLevelSubsume): Remove.
	(SourceLevelSubset): Likewise.
	* interp/sys-globals.boot: Likewise.
	* interp/define.boot: Tidy.
	* interp/functor.boot: Likewise.
	* interp/info.boot: Likewise.
	* algebra/si.spad.pamphlet: Don't set $noSubsets. 
	* algebra/fortpak.spad.pamphlet: Don't set $noSubsumption.
	* algebra/fortran.spad.pamphlet: Likewise.
	* algebra/gdirprod.spad.pamphlet: Likewise.
	* algebra/mkfunc.spad.pamphlet: Likewise.
	* algebra/oct.spad.pamphlet: Likewise.
	* algebra/vector.spad.pamphlet: Likewise.

5 files changed, 3 insertions, 32 deletions

diff --git a/src/interp/category.boot b/src/interp/category.boot
index dbdf9919..77b45dfe 100644
--- a/src/interp/category.boot
+++ b/src/interp/category.boot
@@ -300,28 +300,10 @@ SigListOpSubsume([[name1,sig1,:.],:.],list) ==
   lsig1 := #sig1
   ans:=[]
   for (n:=[[name2,sig2,:.],:.]) in list repeat
-    name1=name2 and lsig1 = #sig2 and SourceLevelSubsume(sig1,sig2) =>
+    name1=name2 and lsig1 = #sig2 and sig1 = sig2 =>
       ans:=[n,:ans]
   return ans
  
-SigOpsubsume([[name1,sig1,:flag1],pred1,:.],[[name2,sig2,:flag2],pred2,:.]) ==
-                    --flag1 = flag2 and :this really should be checked
-  name1=name2 and LENGTH sig1=LENGTH sig2 and SourceLevelSubsume(sig1,sig2)
- 
-SourceLevelSubsume([out1,:in1],[out2,:in2]) ==
-  -- Checks for source-level subsumption in the sense of SYSTEM SCRIPT
-  --   true if the first signature subsumes the second
-  SourceLevelSubset(out1,out2) and
-    (and/[SourceLevelSubset(inarg2,inarg1) for inarg1 in in1 for inarg2 in in2])
- 
-SourceLevelSubset(a,b) ==
-  --true if a is a source-level subset of b
-  a=b => true
-  $noSubsumption=true => false
-  b is ["Union",:blist] and member(a,blist) => true
-  BOUNDP '$noSubsets and $noSubsets => false
-  not null isSubDomain(a,b)
- 
 MachineLevelSubsume([name1,[out1,:in1],:flag1],[name2,[out2,:in2],:flag2]) ==
   -- Checks for machine-level subsumption in the sense of SYSTEM SCRIPT
   --  true if the first signature subsumes the second
diff --git a/src/interp/define.boot b/src/interp/define.boot
index 8a188026..f0d9cb16 100644
--- a/src/interp/define.boot
+++ b/src/interp/define.boot
@@ -1127,13 +1127,6 @@ getSignature(op,argModeList,$e) ==
        else for [[dc,:sig],:.] in mmList repeat printSignature("     ",op,sig)
     printSignature("NEED ",op,["?",:argModeList])
     nil
-  for u in sigl repeat
-    for v in sigl | not (u=v) repeat
-      if SourceLevelSubsume(u,v) then sigl:= delete(v,sigl)
-              --before we complain about duplicate signatures, we should
-              --check that we do not have for example, a partial - as
-              --well as a total one.  SourceLevelSubsume (from CATEGORY BOOT)
-              --should do this
   1=#sigl => first sigl
   stackSemanticError(["duplicate signatures for ",op,": ",argModeList],nil)
  
diff --git a/src/interp/functor.boot b/src/interp/functor.boot
index b792ff7e..0a1a700c 100644
--- a/src/interp/functor.boot
+++ b/src/interp/functor.boot
@@ -734,8 +734,7 @@ SigSlotsMatch(sig,pattern,implem) ==
   sig'=pat' => true
   --If we don't have this next test, then we'll recurse in SetFunctionSlots
   implem is ['Subsumed,:.] => nil
-  SourceLevelSubsume(sig',pat') => true
-  nil
+  sig' = pat'
  
 CheckVector(vec,name,catvecListMaker) ==
   code:= nil
diff --git a/src/interp/info.boot b/src/interp/info.boot
index 1e9cb6ef..2e168e03 100644
--- a/src/interp/info.boot
+++ b/src/interp/info.boot
@@ -200,7 +200,7 @@ knownInfo pred ==
     v:= get(op,"modemap",$e)
     for w in v repeat
       ww:= CDAR w  --the actual signature part
-      #ww = #sig and SourceLevelSubsume(ww,sig) =>
+      ww = sig =>
         CAADR w  = true => return true
         false
         --error '"knownInfo"
diff --git a/src/interp/sys-globals.boot b/src/interp/sys-globals.boot
index c90028e7..d73e5234 100644
--- a/src/interp/sys-globals.boot
+++ b/src/interp/sys-globals.boot
@@ -374,9 +374,6 @@ $constructorLineNumber := 0
 ++
 $maxSignatureLineNumber := 0
 
-++
-$noSubsumption :=true
-
 SPADERRORSTREAM := _*ERROR_-OUTPUT_*
 
 ++