! Copyright (C) 2008, 2009 Jose Antonio Ortega Ruiz.
! See http://factorcode.org/license.txt for BSD license.
-USING: assocs compiler.units fuel.eval fuel.help fuel.remote fuel.xref
-help.topics io.pathnames kernel namespaces parser sequences
-tools.scaffold vocabs.loader ;
+USING: accessors assocs compiler.units continuations fuel.eval fuel.help
+fuel.remote fuel.xref help.topics io.pathnames kernel math namespaces parser
+sequences tools.scaffold vocabs.loader ;
IN: fuel
<PRIVATE
SYMBOL: :uses
+SYMBOL: :uses-suggestions
+
+: is-use-restart ( restart -- ? )
+ name>> [ "Use the " head? ] [ " vocabulary" tail? ] bi and ;
+
+: get-restart-vocab ( restart -- vocab )
+ [ "Use the " length ] dip
+ name>> [ length " vocabulary" length - ] keep
+ subseq ;
+
+: is-suggested-restart ( restart -- ? )
+ dup is-use-restart [
+ get-restart-vocab :uses-suggestions get member?
+ ] [ drop f ] if ;
+
+: try-suggested-restarts ( -- )
+ restarts get [ is-suggested-restart ] filter
+ dup length 1 = [ first restart ] [ drop ] if ;
: fuel-set-use-hook ( -- )
[ amended-use get clone :uses prefix fuel-eval-set-result ]
PRIVATE>
+: fuel-use-suggested-vocabs ( ... suggestions quot: ( ... -- ... ) -- ... )
+ [ :uses-suggestions set ] dip
+ [ try-suggested-restarts rethrow ] recover ;
+
: fuel-run-file ( path -- )
[ fuel-set-use-hook run-file ] curry with-scope ; inline