Minor generic word optimization

TODO.FACTOR.txt

@@ -22,7 +22,6 @@
 - amd64 crash
 - get factor running on mac intel
 - constant branch folding
-- new objc syntax
 
 + refactor style stack code so that nested styles are handled at a lower-level
   - in HTML, we can nest div tags, etc

library/generic/standard-combination.factor

@@ -76,12 +76,16 @@ TUPLE: no-method object generic ;
 : big-generic ( dispatch# word n dispatcher -- def )
     [ >r pick picker % r> , <vtable> , \ dispatch , ] [ ] make ;
 
-: tag-generic? ( word -- ? )
-    "methods" word-prop hash-keys [ types ] map concat
-    [ tag-mask < ] all? ;
+: generic-tags ( word -- seq )
+    "methods" word-prop hash-keys [ types ] map concat prune ;
 
-: small-generic? ( word -- ? )
-    "methods" word-prop hash-size 3 <= ;
+: tag-generic? ( word -- ? )
+    #! If all the types we dispatch upon can be identified
+    #! based on tag alone, we change the dispatcher primitive
+    #! from 'type' to 'tag'.
+    generic-tags [ tag-mask < ] all? ;
+
+: small-generic? ( word -- ? ) generic-tags length 3 <= ;
 
 : standard-combination ( word dispatch# -- quot )
     swap {

library/ui/cocoa/utilities.factor

@@ -91,9 +91,6 @@ H{ } clone objc-methods set-global
 : infer-send ( super? -- )
     pop-literal rot make-objc-send infer-quot-value ;
 
-: compile-send-error
-    "Objective C message sends must be compiled" throw ;
-
 : (send) ( ... selector super? -- ... )
     make-objc-send dup peek compile call ;