X-Git-Url: https://thelambdalab.xyz/gitweb/index.cgi?a=blobdiff_plain;f=src%2Fscheme-primitives.4th;h=dbb68bc63aa56f57386a9b9d7c96eadcd4558cff;hb=c775ab2562b213ac96fe1803d4e7001a73e874a8;hp=bce895de851ff01d71b04134fbe1e9457d3e1ac9;hpb=3f60507c407dc22a19b4539d08cc926c54141653;p=scheme.forth.jl.git

diff --git a/src/scheme-primitives.4th b/src/scheme-primitives.4th
index bce895d..dbb68bc 100644
--- a/src/scheme-primitives.4th
+++ b/src/scheme-primitives.4th
@@ -607,6 +607,26 @@ defer display
     2swap apply
 ; make-primitive apply 
 
+:noname ( proc -- result )
+    make-continuation
+
+    ( Note that we get to this point either when
+    make-continuation is originally called or when
+    restore-continuation is called.  Since we don't
+    want to call proc again following a restore,
+    we use the boolean values placed on the parameter
+    stack by make-continuation and restore-continuation
+    to detect which call got us here and act accordingly. )
+
+    drop if
+        nil cons
+        2swap apply
+    else
+        2swap 2drop
+    then
+
+; 1 make-fa-primitive call-with-current-continuation
+
 \ }}}
 
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