Nice/src/bossa/syntax niceMethod.nice,1.20,1.21

Update of /cvsroot/nice/Nice/src/bossa/syntax
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv5461/src/bossa/syntax

Modified Files:
	niceMethod.nice 
Log Message:
Factored checkOverride out to simplify the logics of findSpecializedMethods.


Index: niceMethod.nice
===================================================================
RCS file: /cvsroot/nice/Nice/src/bossa/syntax/niceMethod.nice,v
retrieving revision 1.20
retrieving revision 1.21
diff -C2 -d -r1.20 -r1.21
*** niceMethod.nice	6 Mar 2005 01:34:26 -0000	1.20
--- niceMethod.nice	8 Mar 2005 09:48:54 -0000	1.21
***************
*** 136,168 ****
  
          // In a compiled package, we don't need checking.
!         if (module.compiled())
!           {
!             this.addSpecializedMethod(d);
              continue;
-           }
- 
-         if (! nice.tools.typing.Types.covariantSpecialization(this.getType(), s.getType()))
-           {
-             User.error
-               (returnTypeLocation != null ? returnTypeLocation : this.location(), 
- "The return type is less precise than the original return type of method\n" +
- d + "\ndefined in:\n" +
-                d.location());
-           }
- 
-         // Check if we are a proper specialization, or if we actually have
-         // the same domain.
-         if (mlsub.typing.Typing.smaller(itsDomain, ourDomain))
-           {
-             if (module == d.module)
-               User.error(this, "This method has a domain identical to " +
-                          d + ", which is defined at " + d.location());
-             else
-               // Methods with identical domains in different packages are
-               // accepted, but they do not specialize each other.
-               // They can be refered to unambiguously by using their
-               // fully qualified name.
-               continue;
-           }
  
          this.addSpecializedMethod(d);
--- 136,143 ----
  
          // In a compiled package, we don't need checking.
!         if (! module.compiled())
! 	  if (! this.checkOverride(s, d, ourDomain, itsDomain))
! 	    // Ignore. Errors are reported by checkOverride.
              continue;
  
          this.addSpecializedMethod(d);
***************
*** 172,175 ****
--- 147,184 ----
    }
  
+   /** Return true if the override of d by this is OK.
+       Return false if the override should be ignored.
+   */
+   private boolean checkOverride
+     (VarSymbol s, MethodDeclaration d,
+      mlsub.typing.Domain ourDomain, mlsub.typing.Domain itsDomain)
+   {
+     if (! nice.tools.typing.Types.covariantSpecialization(this.getType(), s.getType()))
+       {
+ 	User.error
+ 	(returnTypeLocation != null ? returnTypeLocation : this.location(),
+ "The return type is less precise than the original return type of method\n" +
+ 	 d + "\ndefined in:\n" +
+ 	 d.location());
+       }
+ 
+     // Check if we are a proper specialization, or if we actually have
+     // the same domain.
+     if (mlsub.typing.Typing.smaller(itsDomain, ourDomain))
+       {
+ 	if (module == d.module)
+ 	  User.error(this, "This method has a domain identical to " +
+ 		     d + ", which is defined at " + d.location());
+ 	else
+ 	  // Methods with identical domains in different packages are
+ 	  // accepted, but they do not specialize each other.
+ 	  // They can be refered to unambiguously by using their
+ 	  // fully qualified name.
+ 	  return false;
+       }
+ 
+     return true;
+   }
+ 
    private void addSpecializedMethod(MethodDeclaration method)
    {



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