void setVariableState(DfaVariableValue dfaVar, DfaVariableState state) {
assert !myUnknownVariables.contains(dfaVar);
if (state.equals(myDefaultVariableStates.get(dfaVar))) {
myVariableStates.remove(dfaVar);
} else {
myVariableStates.put(dfaVar, state);
}
myCachedHash = null;
}
DfaVariableState getVariableState(DfaVariableValue dfaVar) {
DfaVariableState state = myVariableStates.get(dfaVar);
if (state == null) {
state = myDefaultVariableStates.get(dfaVar);
if (state == null) {
state = createVariableState(dfaVar);
DfaTypeValue initialType = dfaVar.getTypeValue();
if (initialType != null) {
state = state.withInstanceofValue(initialType);
assert state != null;
}
myDefaultVariableStates.put(dfaVar, state);
}
if (isUnknownState(dfaVar)) {
return state.withNullable(false);
}
}
return state;
}