Difference between revisions of "ATL Language Troubleshooter"

Revision as of 07:39, 16 May 2006

Trouble Cause Solution(s)

ATL Virtual Machine Troubles

• Trouble: NativeOperation public static org.atl.engine.vm.nativelib.ASMNumber org.atl.engine.vm.nativelib.ASMInteger.operatorMinus(org.atl.engine.vm.StackFrame,org.atl.engine.vm.nativelib.ASMInteger,org.atl.engine.vm.nativelib.ASMNumber)
  

  Cause: You use negative integer to compare

  e.g. if self.upper = -1 ...
  

  Solutions: Use (0-x) operation

  e.g. if self.upper = (0-1) ... or change your comparaison if it is possible: e.g. if self.upper < 0 ...

ATL Called Rules Troubles

• Trouble: ERROR: could not find operation including on Module having supertypes: [OclAny]) on a called rule
  

  Cause: Your called rule doesn't return the good type (problably any)
  

  Solution: Add a return type on your called rule by adding the do clause

  e.g.

rule myCalledRule() {
 to
   out : XML!Element -- ...
 do {
   out;
 }
}