@Override
public void visitMethodCallExpression(@NotNull PsiMethodCallExpression expression) {
super.visitMethodCallExpression(expression);
final PsiExpressionList argumentList = expression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length == 0) {
return;
}
final PsiExpression xpathArgument = arguments[0];
if (!ExpressionUtils.hasStringType(xpathArgument)) {
return;
}
if (!PsiUtil.isConstantExpression(xpathArgument)) {
return;
}
final PsiType type = xpathArgument.getType();
if (type == null) {
return;
}
final String value = (String) ConstantExpressionUtil.computeCastTo(xpathArgument, type);
if (value == null) {
return;
}
if (!callTakesXPathExpression(expression)) {
return;
}
final XPathFactory xpathFactory = XPathFactory.newInstance();
final XPath xpath = xpathFactory.newXPath();
//noinspection UnusedCatchParameter,ProhibitedExceptionCaught
try {
xpath.compile(value);
} catch (XPathExpressionException ignore) {
registerError(xpathArgument);
}
}
@Override
public void visitMethodCallExpression(@NotNull PsiMethodCallExpression expression) {
super.visitMethodCallExpression(expression);
final PsiReferenceExpression methodExpression = expression.getMethodExpression();
@NonNls final String methodName = methodExpression.getReferenceName();
if (methodName == null) {
return;
}
if (!methodName.startsWith("get") && !methodName.startsWith("update")) {
return;
}
final PsiExpressionList argumentList = expression.getArgumentList();
final PsiExpression[] arguments = argumentList.getExpressions();
if (arguments.length == 0) {
return;
}
final PsiExpression argument = arguments[0];
if (!TypeUtils.expressionHasType(argument, PsiKeyword.INT)) {
return;
}
if (!PsiUtil.isConstantExpression(argument)) {
return;
}
final Integer val = (Integer) ConstantExpressionUtil.computeCastTo(argument, PsiType.INT);
if (val == null || val.intValue() != 0) {
return;
}
final PsiExpression qualifier = methodExpression.getQualifierExpression();
if (!TypeUtils.expressionHasTypeOrSubtype(qualifier, "java.sql.ResultSet")) {
return;
}
registerError(argument);
}
