private static AssignmentTestable.TestResult matchAguments(
String keyspace,
Function fun,
List<? extends AssignmentTestable> providedArgs,
String receiverKs,
String receiverCf) {
if (providedArgs.size() != fun.argTypes().size())
return AssignmentTestable.TestResult.NOT_ASSIGNABLE;
// It's an exact match if all are exact match, but is not assignable as soon as any is non
// assignable.
AssignmentTestable.TestResult res = AssignmentTestable.TestResult.EXACT_MATCH;
for (int i = 0; i < providedArgs.size(); i++) {
AssignmentTestable provided = providedArgs.get(i);
if (provided == null) {
res = AssignmentTestable.TestResult.WEAKLY_ASSIGNABLE;
continue;
}
ColumnSpecification expected = makeArgSpec(receiverKs, receiverCf, fun, i);
AssignmentTestable.TestResult argRes = provided.testAssignment(keyspace, expected);
if (argRes == AssignmentTestable.TestResult.NOT_ASSIGNABLE)
return AssignmentTestable.TestResult.NOT_ASSIGNABLE;
if (argRes == AssignmentTestable.TestResult.WEAKLY_ASSIGNABLE)
res = AssignmentTestable.TestResult.WEAKLY_ASSIGNABLE;
}
return res;
}
// This method and matchArguments are somewhat duplicate, but this method allows us to provide
// more precise errors in the common
// case where there is no override for a given function. This is thus probably worth the minor
// code duplication.
private static void validateTypes(
String keyspace,
Function fun,
List<? extends AssignmentTestable> providedArgs,
String receiverKs,
String receiverCf)
throws InvalidRequestException {
if (providedArgs.size() != fun.argTypes().size())
throw new InvalidRequestException(
String.format(
"Invalid number of arguments in call to function %s: %d required but %d provided",
fun.name(), fun.argTypes().size(), providedArgs.size()));
for (int i = 0; i < providedArgs.size(); i++) {
AssignmentTestable provided = providedArgs.get(i);
// If the concrete argument is a bind variables, it can have any type.
// We'll validate the actually provided value at execution time.
if (provided == null) continue;
ColumnSpecification expected = makeArgSpec(receiverKs, receiverCf, fun, i);
if (!provided.testAssignment(keyspace, expected).isAssignable())
throw new InvalidRequestException(
String.format(
"Type error: %s cannot be passed as argument %d of function %s of type %s",
provided, i, fun.name(), expected.type.asCQL3Type()));
}
}