[armedbear-devel] DEFUN (SETF ...)s

[logicmoo at gmail.com]

Help me out!

I made a class called:  TestClass

------------------------src/dmiles/TestClass.java---------------------
package dmiles

public class TestClass {
   static public String StaticField = "fresh";
}

-------------------------------------------------------------------------

Now in the REPL everything works fine.


Armed Bear Common Lisp 0.18.0-dev (built Mon Nov 23 2009 06:46:01 PST)
Java 1.6.0_10 Sun Microsystems Inc.
Java HotSpot(TM) 64-Bit Server VM
Low-level initialization completed in 0.658 seconds.
Startup completed in 1.877 seconds.
Type ":help" for a list of available commands.
CL-USER(1):  (defun (setf jfield)         
   (newvalue class-ref-or-field field-or-instance &optional ( instance :noinst) unused-value)
   (declare (ignorable unused-value))
   (if (eq instance :noinst) 
     (jfield class-ref-or-field field-or-instance newvalue) 
     (jfield class-ref-or-field field-or-instance instance newvalue))) 
(SETF JFIELD)
CL-USER(2): (jfield "dmiles.TestClass" "StaticField")
"fresh"
CL-USER(3):  (define-symbol-macro %TESTSYM (jfield "dmiles.TestClass" "StaticField"))  
%TESTSYM
CL-USER(4): CL-USER(4): %TESTSYM
"fresh"
CL-USER(5): (setf %TESTSYM "flithy")
"flithy"
CL-USER(6):  %TESTSYM
"flithy"
CL-USER(7): (jfield "dmiles.TestClass" "StaticField")
"flithy"
CL-USER(8): 

---------------------------------------------------------------------------------


Question:  locally I added this to the bottem of java.lisp

(defun (setf jfield)  (newvalue class-ref-or-field field-or-instance &optional ( instance :noinst) unused-value)
   (declare (ignorable unused-value))
  (if (eq instance :noinst)
   (jfield class-ref-or-field field-or-instance newvalue)
   (jfield class-ref-or-field field-or-instance instance newvalue)))


Cleaned and rebuilt the system..


 
To test it:

Armed Bear Common Lisp 0.18.0-dev (built Mon Nov 23 2009 12:07:35 PST)
Java 1.6.0_10 Sun Microsystems Inc.
Java HotSpot(TM) 64-Bit Server VM
Low-level initialization completed in 0.564 seconds.
Startup completed in 1.651 seconds.
Type ":help" for a list of available commands.
CL-USER(1): (jfield "dmiles.TestClass" "StaticField")
"fresh"
CL-USER(2):   (define-symbol-macro %TESTSYM (jfield "dmiles.TestClass" "StaticField"))  
%TESTSYM
CL-USER(3): %TESTSYM
"fresh"
CL-USER(4):  (setf %TESTSYM "flithy")
Debugger invoked on condition of type UNDEFINED-FUNCTION:
  The function (SETF JFIELD) is undefined.
Restarts:
  0: TOP-LEVEL Return to top level.
[1] CL-USER(5): :bt
  0: (SYSTEM:BACKTRACE)
  1: (INVOKE-DEBUGGER #<UNDEFINED-FUNCTION {50E26AE7}>)
  2: org.armedbear.lisp.Lisp.error(Lisp.java:365)
  3: org.armedbear.lisp.SpecialOperators$14.execute(SpecialOperators.java:493)
  4: org.armedbear.lisp.Lisp.eval(Lisp.java:461)
  5: org.armedbear.lisp.Lisp.evalCall(Lisp.java:501)
  6: org.armedbear.lisp.Lisp.eval(Lisp.java:471)
  7: org.armedbear.lisp.Lisp.progn(Lisp.java:640)
[1] CL-USER(6): 



Hw do a add a new  (defun (setf ..) .. .) to the library?