private static void reportCastMayFail(ProblemsHolder holder, TypeCastInstruction instruction) {
PsiTypeCastExpression typeCast = instruction.getCastExpression();
PsiExpression operand = typeCast.getOperand();
PsiTypeElement castType = typeCast.getCastType();
assert castType != null;
assert operand != null;
holder.registerProblem(
castType, InspectionsBundle.message("dataflow.message.cce", operand.getText()));
}
@Override
public DfaInstructionState[] visitTypeCast(
TypeCastInstruction instruction, DataFlowRunner runner, DfaMemoryState memState) {
final DfaValueFactory factory = runner.getFactory();
DfaValue dfaExpr = factory.createValue(instruction.getCasted());
if (dfaExpr != null) {
DfaTypeValue dfaType =
(DfaTypeValue) factory.createTypeValue(instruction.getCastTo(), Nullness.UNKNOWN);
DfaRelationValue dfaInstanceof =
factory.getRelationFactory().createRelation(dfaExpr, dfaType, INSTANCEOF_KEYWORD, false);
if (dfaInstanceof != null && !memState.applyInstanceofOrNull(dfaInstanceof)) {
onInstructionProducesCCE(instruction);
}
}
if (instruction.getCastTo() instanceof PsiPrimitiveType) {
memState.push(runner.getFactory().getBoxedFactory().createUnboxed(memState.pop()));
}
return nextInstruction(instruction, runner, memState);
}