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);
}
}
/**
* Updates the entry associated with name. If it is not contained yet it gets added, otherwise the
* current value will be overridden.
*
* @param entry
*/
public void updateEntry(EntryType entry) throws SemanticException {
try {
entries.set(lookupIndex(entry.getId()), entry);
} catch (SemanticException e) {
insertEntry(entry);
}
}
/**
* Find value for a specific key. If multiple instances of this node exist, the first one is
* taken.
*
* @param name Key
* @return Value, may be null
*/
public EntryType lookup(String name) {
for (EntryType entry : entries) {
if (entry.getId().equals(name)) {
return entry;
}
}
return null;
}
@Override
public String toString() {
String ret = "";
for (EntryType entry : entries) {
ret += entry.getId() + ", ";
}
return ret;
}
/**
* 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;
}
