@Override
public DfaInstructionState[] visitPush(
PushInstruction instruction, DataFlowRunner runner, DfaMemoryState memState) {
if (myContext == instruction.getPlace()) {
final Map<DfaVariableValue, DfaVariableState> map =
((ValuableDataFlowRunner.MyDfaMemoryState) memState).getVariableStates();
for (Map.Entry<DfaVariableValue, DfaVariableState> entry : map.entrySet()) {
ValuableDataFlowRunner.ValuableDfaVariableState state =
(ValuableDataFlowRunner.ValuableDfaVariableState) entry.getValue();
DfaVariableValue variableValue = entry.getKey();
final PsiExpression psiExpression = state.myExpression;
if (psiExpression != null && variableValue.getQualifier() == null) {
myValues.put(variableValue.getPsiVariable(), psiExpression);
}
}
DfaValue value = instruction.getValue();
if (value instanceof DfaVariableValue
&& ((DfaVariableValue) value).getQualifier() == null) {
if (memState.isNotNull((DfaVariableValue) value)) {
myNotNulls.add(((DfaVariableValue) value).getPsiVariable());
}
if (memState.isNull(value)) {
myNulls.add(((DfaVariableValue) value).getPsiVariable());
}
}
}
return super.visitPush(instruction, runner, memState);
}
public DfaInstructionState[] visitPush(
PushInstruction instruction, DataFlowRunner runner, DfaMemoryState memState) {
if (instruction.isFieldReference()) {
memState.fieldReferenced();
}
memState.push(instruction.getValue());
return nextInstruction(instruction, runner, memState);
}
public List<Pair<PsiReferenceExpression, DfaConstValue>> getConstantReferenceValues() {
List<Pair<PsiReferenceExpression, DfaConstValue>> result = ContainerUtil.newArrayList();
for (PushInstruction instruction : myPossibleVariableValues.keySet()) {
Collection<Object> values = myPossibleVariableValues.get(instruction);
if (values.size() == 1) {
Object singleValue = values.iterator().next();
if (singleValue != ANY_VALUE) {
result.add(
Pair.create(
(PsiReferenceExpression) instruction.getPlace(), (DfaConstValue) singleValue));
}
}
}
return result;
}
@Override
public DfaInstructionState[] visitPush(
PushInstruction instruction, DataFlowRunner runner, DfaMemoryState memState) {
if (instruction.isReferenceRead()) {
DfaValue dfaValue = instruction.getValue();
if (dfaValue instanceof DfaVariableValue) {
DfaConstValue constValue = memState.getConstantValue((DfaVariableValue) dfaValue);
myPossibleVariableValues.putValue(
instruction,
constValue != null
&& (constValue.getValue() == null || constValue.getValue() instanceof Boolean)
? constValue
: ANY_VALUE);
}
}
return super.visitPush(instruction, runner, memState);
}
@Override
public DfaInstructionState[] visitPush(
PushInstruction instruction, DataFlowRunner runner, DfaMemoryState memState) {
if (myForPlace == instruction.getPlace()) {
addToResult(((ExpressionTypeMemoryState) memState).getStates());
}
return super.visitPush(instruction, runner, memState);
}