public void insertEntry(EntryType entry) {
if (lookup(entry.getId(), entry.getParams()) == null) {
entries.add(entry);
} else {
throw new SemanticException(
entry.getId()
+ " is already registered in this symbolTable. "
+ "You may want to update instead. 3"
+ lookup(entry.getId(), entry.getParams())
+ ":"
+ entry);
}
}
/**
* This is basically the method to look for function definitions.
*
* @param name function name
* @param params function parameter
* @return The Entry for this method
*/
public EntryType lookup(String name, List<EntryType> params) {
EntryType ret = null;
for (EntryType entry : entries) {
if (entry.getId().equals(name)) {
boolean found = true;
if (entry.getParams().size() == params.size()) {
for (int i = 0; i < params.size(); i++) {
if (!entry.getParams().get(i).equals(params.get(i))) {
found = false;
}
}
} else {
found = false;
}
if (found) ret = entry;
}
}
return ret;
}