(guile.info.gz) Evaluator trap options

(guile.info.gz) Examples of option use

 
 33.3.6 Evaluator trap options
 -----------------------------
 
 [FIXME: These flags, together with their corresponding handlers, are not
 user level options.  Probably this entire section should be moved to the
 documentation about the low-level programmer debugging interface.]
 
    Here is the list of evaluator trap options generated by typing
 `(traps 'full)' in Guile.  You can also see the default values.
 
      exit-frame      no      Trap when exiting eval or apply.
      apply-frame     no      Trap when entering apply.
      enter-frame     no      Trap when eval enters new frame.
      traps		yes	Enable evaluator traps.
 
  -- apply-frame-handler: key cont tailp
      Called when a procedure is being applied.
 
      Called if:
 
         * evaluator traps are enabled [traps interface], and
 
         * either
              - `apply-frame' is enabled [traps interface], or
 
              - trace mode is on [debug-options interface], and the
                procedure being called has the trace property enabled.
 
      If cheap traps are enabled [debug-options interface], CONT is a
      debug object, otherwise it is a restartable continuation.
 
      TAILP is true if this is a tail call
 
  -- exit-frame-handler: key cont retval
      Called when a value is returned from a procedure.
 
      Called if:
 
         * evaluator traps are enabled [traps interface], and
 
         * either
              -  `exit-frame' is enabled [traps interface], or
 
              - trace mode is on [debug-options interface], and the
                procedure being called has the trace property enabled.
 
      If cheap traps are enabled [debug-options interface], CONT is a
      debug object, otherwise it is a restartable continuation.
 
      RETVAL is the return value.

Info Catalog

(guile.info.gz) Evaluator options

(guile.info.gz) Runtime Options

(guile.info.gz) Examples of option use

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