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| author | dos-reis <gdr@axiomatics.org> | 2009-07-14 02:30:28 +0000 |
|---|---|---|
| committer | dos-reis <gdr@axiomatics.org> | 2009-07-14 02:30:28 +0000 |
| commit | 4f065a4bf2b814ffde4ef743cb89b384156e691d (patch) | |
| tree | 75feeee33912cc9ba28573872e1710e9ce02ee9c /src/interp | |
| parent | c6efaa6ac903c17bd85eb51e672f80e9baa0ebc4 (diff) | |
| download | open-axiom-4f065a4bf2b814ffde4ef743cb89b384156e691d.tar.gz | |
* interp/g-opt.boot (optCatch): Lift nested functions.
Diffstat (limited to 'src/interp')
| -rw-r--r-- | src/interp/g-opt.boot | 50 |
1 files changed, 27 insertions, 23 deletions
diff --git a/src/interp/g-opt.boot b/src/interp/g-opt.boot index f3a29f81..9e08d9a8 100644 --- a/src/interp/g-opt.boot +++ b/src/interp/g-opt.boot @@ -114,36 +114,40 @@ subrname u == COMPILED_-FUNCTION_-P u or MBPIP u => BPINAME u nil +changeThrowToExit(s,g) == + atom s or MEMQ(first s,'(QUOTE SEQ REPEAT COLLECT)) => nil + s is ["THROW", =g,:u] => (rplac(first s,"EXIT"); rplac(rest s,u)) + changeThrowToExit(first s,g) + changeThrowToExit(rest s,g) + +hasNoThrows(a,g) == + a is ["THROW", =g,:.] => false + atom a => true + hasNoThrows(first a,g) and hasNoThrows(rest a,g) + +changeThrowToGo(s,g) == + atom s or first s='QUOTE => nil + s is ["THROW", =g,u] => + changeThrowToGo(u,g) + rplac(first s,"PROGN") + rplac(rest s,[["%LET",second g,u],["GO",second g]]) + changeThrowToGo(first s,g) + changeThrowToGo(rest s,g) + optCatch (x is ["CATCH",g,a]) == $InteractiveMode => x atom a => a if a is ["SEQ",:s,["THROW", =g,u]] then - changeThrowToExit(s,g) where - changeThrowToExit(s,g) == - atom s or MEMQ(first s,'(QUOTE SEQ REPEAT COLLECT)) => nil - s is ["THROW", =g,:u] => (rplac(first s,"EXIT"); rplac(rest s,u)) - changeThrowToExit(first s,g) - changeThrowToExit(rest s,g) + changeThrowToExit(s,g) rplac(rest a,[:s,["EXIT",u]]) ["CATCH",y,a]:= optimize x - if hasNoThrows(a,g) where - hasNoThrows(a,g) == - a is ["THROW", =g,:.] => false - atom a => true - hasNoThrows(first a,g) and hasNoThrows(rest a,g) - then (rplac(first x,first a); rplac(rest x,rest a)) - else - changeThrowToGo(a,g) where - changeThrowToGo(s,g) == - atom s or first s='QUOTE => nil - s is ["THROW", =g,u] => - changeThrowToGo(u,g) - rplac(first s,"PROGN") - rplac(rest s,[["%LET",CADR g,u],["GO",CADR g]]) - changeThrowToGo(first s,g) - changeThrowToGo(rest s,g) + if hasNoThrows(a,g) then + rplac(first x,first a) + rplac(rest x,rest a) + else + changeThrowToGo(a,g) rplac(first x,"SEQ") - rplac(rest x,[["EXIT",a],CADR g,["EXIT",CADR g]]) + rplac(rest x,[["EXIT",a],second g,["EXIT",second g]]) x optSPADCALL(form is ['SPADCALL,:argl]) == |