question: private boolean rContainsRMInstruction ( ProgramBlock pb , String varName ) { if ( pb instanceof WhileProgramBlock ) { WhileProgramBlock tmp = ( WhileProgramBlock ) pb ; for ( ProgramBlock c : tmp . getChildBlocks ( ) ) if ( rContainsRMInstruction ( c , varName ) ) return true ; } else if ( pb instanceof IfProgramBlock ) { IfProgramBlock tmp = ( IfProgramBlock ) pb ; for ( ProgramBlock c : tmp . getChildBlocksIfBody ( ) ) if ( rContainsRMInstruction ( c , varName ) ) return true ; for ( ProgramBlock c : tmp . getChildBlocksElseBody ( ) ) if ( rContainsRMInstruction ( c , varName ) ) return true ; } else if ( pb instanceof ForProgramBlock ) { ForProgramBlock tmp = ( ForProgramBlock ) pb ; for ( ProgramBlock c : tmp . getChildBlocks ( ) ) if ( rContainsRMInstruction ( c , varName ) ) return true ; } else if ( pb instanceof FunctionProgramBlock ) { } else { for ( Instruction inst : pb . getInstructions ( ) ) { String instStr = inst . toString ( ) ; if ( instStr . contains ( "rmfilevar" + Lop . OPERAND_DELIMITOR + varName ) || instStr . contains ( "rmvar" + Lop . OPERAND_DELIMITOR + varName ) ) { return true ; } } } return false ; }
target:  Determines if the given program block includes a RMVAR or RMFILEVAR instruction for the given varName.