void (ReadVariableInstruction instruction, int offset, int nextOffset) { CopyOnWriteList readVars = readVariables[Math.min(nextOffset, myFlow.getSize())]; final PsiVariable variable = instruction.variable; if (!localVariablesOnly || !isImplicitlyInitialized(variable)) { final PsiReferenceExpression expression = getEnclosingReferenceExpression(myFlow.getElement(offset), variable); if (expression != null) { readVars = CopyOnWriteList.add(readVars, new VariableInfo(variable, expression)); } } merge(offset, readVars, readVariables); }