[GSLL-devel] gsd/grid: cannot convert #(...doubles...) to #m(...doubles...)

[Mirko Vukovic]

I can go from foreign arrays to cl-arrays:

(grid:copy-to #m(1.0d0 2.0d0)  'grid::array)

(although the use of the *internal* symbol `array' puzzles me)

but I cannot do the converse:

(grid:copy-to #(1.0d0 2.0d0) 'grid:foreign-array)

There is no class named GRID::VECTOR-T.
   [Condition of type SIMPLE-ERROR]

Restarts:
 0: [RETRY] Retry SLIME REPL evaluation request.
 1: [*ABORT] Return to SLIME's top level.
 2: [TERMINATE-THREAD] Terminate this thread (#<THREAD "repl-thread"
RUNNING {BD57319}>)

Backtrace:
  0: (SB-PCL::FIND-CLASS-FROM-CELL GRID::VECTOR-T NIL T)
  1: ((SB-PCL::FAST-METHOD MAKE-INSTANCE (SYMBOL)) #<unavailable
argument> #<unavailable argument> GRID::VECTOR-T)[:EXTERNAL]
  2: ((SB-PCL::FAST-METHOD GRID::MAKE-GRID-DATA ((EQL
'GRID:FOREIGN-ARRAY) T T)) #<unavailable argument> #<unavailable
argument> #<unavailable argument> (2) (T))[:EXTERNAL]
  3: (GRID:MAP-N-GRIDS)[:EXTERNAL]
  4: (SB-INT:SIMPLE-EVAL-IN-LEXENV (GRID:COPY-TO #(1.0d0 2.0d0)
'GRID:FOREIGN-ARRAY) #<NULL-LEXENV>)


I get the same results with the function `copy-to'

I get the same problem if I am in the package :grid.

>From tracing the call tree, I think that the `T' vector-T stems from a
call to `array-element-type' which under SBCL gives the following:

GRID> (array-element-type #(1.0 2.0))
T

Thanks,

Mirko