Arthur Ralfs <[email protected]> writes:
| Hi Gaby,
|
| The panserver.spad file seems to compile with latest trunk but now I get:
|
| ; /mnt/sdb3/arthur-home1/openaxiom/panserver/SOCKLIB.NRLIB/code.fasl written
| ; compilation finished in 0:00:00.105
|
| >> System error:
| Compilation of generated Lisp failed
Hi Arthur,
This problem is separate from the FFI interface code per se.
The errors are caused by mixing Lisp variables/instructions with Spad
variables/instructions in way that the Spad compiler does not
understand. This is a problem common to all AXIOM compilers; older
versions may let it pass by, but only to lead to random `memory may be
damaged' errors.
For example, in sendCommand(), we have
SETQ(tmpmathml$Lisp, MAKE_-STRING_-OUTPUT_-STREAM()$Lisp)$Lisp
SETQ(tmpalgebra$Lisp, MAKE_-STRING_-OUTPUT_-STREAM()$Lisp)$Lisp
SETQ(savemathml$Lisp, _$texOutputStream$Lisp)$Lisp
SETQ(savealgebra$Lisp, _$algebraOutputStream$Lisp)$Lisp
As currently written, the variables `tmpmathml', `tmpalgebra', etc.,
appear to be intended to Lisp-level special variables, not Spad
variables. However the Spad compiler does not know that. So it
generates code that does not tell the Lisp compiler that they are
special variables. The way we tell the Spad compiler that a Lisp
variable is special, is that its name starts with a dollar --
e.g. _$algebraOutputStream.
On the other hand, I am not too sure you wanted `tmpmathml' or `tmpalgebra'
to be Lisp-level special variables. So, my question is: are they
reasons why you don't say
tmpmathml := MAKE_-STRING_-OUTPUT_-STREAM()$Lisp
tmpalgebra := MAKE_-STRING_-OUTPUT_-STREAM()$Lisp
savemathml := _$texOutputStream$Lisp
savealgebra := _$algebraOutputStream$Lisp
-- Gaby
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