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authordos-reis <gdr@axiomatics.org>2010-12-07 02:13:06 +0000
committerdos-reis <gdr@axiomatics.org>2010-12-07 02:13:06 +0000
commit871ae5f27191cd50a4629143243312da1be7ca94 (patch)
tree3f1fb2417bf23ca38b2af02e9bda143e710993f3 /src/interp/g-error.boot
parentd14fd317bc282ba83762209a48632087e5036ebf (diff)
downloadopen-axiom-871ae5f27191cd50a4629143243312da1be7ca94.tar.gz
Add support for exception handling.
* interp/parsing.lisp (TEST-LEXING): Remove. (RTRACE): Likewise. (RUNTRACE): Likewise. (MATCH-ADVANCE-KEYWORD): New. (MATCH-ADVANCE-GLYPH): Likewise. (MATCH-ADVANCE-SPECIAL): Likewise. (MATCH-SPECIAL): Likewise. (MATCH-KEYWORD-NEXT): Likewise. * interp/newaux.lisp: Make try and throw prefix operators. * interp/metalex.lisp (KEYWORDS): Include finally, catch and throw. * interp/fnewmeta.lisp (PARSE-Throw): New. Parse throw-expressions. (PARSE-Catch): New. Parse catch-expressions. (PARSE-Finally): New. Parse finally-expressions. (PARSE-Try): New. Parse try-expressions. * interp/compiler.boot (compThrow): New. Register to compile throw-expressions. (compTry): New. Register to compiler try-expressions. (compCatch): New. Compile catch-handler expression. * interp/g-opt.boot (optTry): New. Simplify simple expressions in the try operand. * interp/g-util.boot (expandThrow): New. Expand %throw forms. (domainMatchCode): New. (expandTry): New. Expand %try forms. * doc/msgs/s2-us.msgs: Add new message with key S2GE0020. * interp/g-error.boot (systemErrorHandler): Handle possible uncaucght expression condition.
Diffstat (limited to 'src/interp/g-error.boot')
-rw-r--r--src/interp/g-error.boot1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/interp/g-error.boot b/src/interp/g-error.boot
index b88206b8..4964e4da 100644
--- a/src/interp/g-error.boot
+++ b/src/interp/g-error.boot
@@ -188,6 +188,7 @@ systemErrorHandler c ==
$BreakMode = "validate" =>
systemError ERROR_-FORMAT('"~a",[c])
not $inLispVM and $BreakMode in '(nobreak query resume) =>
+ TYPEP(c,'CONTROL_-ERROR) => keyedSystemError('S2GE0020,nil)
LET(($inLispVM true)(), systemError ERROR_-FORMAT('"~a",[c]))
$BreakMode = "letPrint2" =>
$BreakMode := nil