diff options
Diffstat (limited to 'txr.1')
| -rw-r--r-- | txr.1 | 36 |
1 files changed, 36 insertions, 0 deletions
@@ -32183,6 +32183,42 @@ form terminates without evaluating the remaining forms, and yields .codn nil . +.coNP Macro @ ignwarn +.synb +.mets (ignwarn << form *) +.syne +.desc +The +.code ignwarn +macro resembles +.codn ignerr . +It arranges for the evaluation of each +.meta form +in left-to-right order. If all the forms are evaluated, then the +value of the last one is returned. If no forms are present, then +.code nil +is returned. + +If any +.meta form +throws an exception of type +.code warning +then this exception is intercepted by a handler established by +.codn ignwarn . +This handler reacts by throwing an exception of type +.codn continue . + +The effect is that the warning is ignored, since the handler +doesn't issue any diagnostic, and passes control to the warning's +continue point. + +Note: all sites within \*(TX which throw a +.code warning +also provide a nearby catch for a +.code continue +exception, for resuming evaluation at the point where the warning +was issued. + .coNP Operator @ handler-bind .synb .mets (handler-bind < function-form < symbol-list << body-form *) |