/// <summary>
/// important interface
/// </summary>
/// <param name="name"></param>
/// <param name="scope"></param>
/// <param name="type"></param>
/// <param name="lineno"></param>
/// <param name="memloc"></param>
/// <param name="isArr"></param>
public void Insert( string name, string scope, TokenType type, int lineno, long memloc, bool isArr)
{
int h = Hash(name);
BucketList l = hashTable[h];
while (l!=null && ((l.Name != name) || (l.Scope != scope))) l = l.next;
if (l == null) // not found in table,
{
l = new BucketList();
l.Name = name;
l.Scope = scope;
l.Type = type;
l.memloc = (int)memloc;
l.isArr = isArr;
l.Lines = new LineList();
l.Lines.lineno = lineno;
l.next = hashTable[h];
hashTable[h] = l; // dot worry,
}
else
{ // if found in table, just add lineno,
LineList t = l.Lines;
while (t.next != null) t = t.next;
t.next = new LineList();
t.next.lineno = lineno;
}
}
/// <summary>
/// return the varible is or not is a array ?
/// </summary>
/// <param name="name"></param>
/// <param name="scope"></param>
/// <returns></returns>
public bool SearchArray(string name, string scope)
{
int h = Hash(name);
BucketList l = hashTable[h];
while (l != null && (l.Name != name || l.Scope != scope))
{
l = l.next;
}
return((l == null) ? false : l.isArr);
}
/// <summary>
/// return the varible memory location
/// </summary>
/// <param name="name"></param>
/// <param name="scope"></param>
/// <returns></returns>
public long LookUp(string name, string scope)
{
int h = Hash(name);
BucketList l = hashTable[h];
while (l != null && !(l.Name == name && l.Scope == scope))
{
l = l.next;
}
return((l == null) ? -1 : l.memloc);
}
/// <summary>
/// main important interface
/// </summary>
/// <param name="name"></param>
/// <param name="scope"></param>
/// <returns></returns>
public TokenType SearchType(string name, string scope)
{
int h = Hash(name);
BucketList l = hashTable[h];
while ((l != null) && (l.Name == name) && (l.Scope == name))
{
l = l.next;
}
if (l == null)
{
return(TokenType.ERROR);
}
else
{
return(l.Type);
}
}
/// <summary>
/// important interface
/// </summary>
/// <param name="name"></param>
/// <param name="scope"></param>
/// <param name="type"></param>
/// <param name="lineno"></param>
/// <param name="memloc"></param>
/// <param name="isArr"></param>
public void Insert(string name, string scope, TokenType type, int lineno, long memloc, bool isArr)
{
int h = Hash(name);
BucketList l = hashTable[h];
while (l != null && ((l.Name != name) || (l.Scope != scope)))
{
l = l.next;
}
if (l == null) // not found in table,
{
l = new BucketList();
l.Name = name;
l.Scope = scope;
l.Type = type;
l.memloc = (int)memloc;
l.isArr = isArr;
l.Lines = new LineList();
l.Lines.lineno = lineno;
l.next = hashTable[h];
hashTable[h] = l; // dot worry,
}
else
{ // if found in table, just add lineno,
LineList t = l.Lines;
while (t.next != null)
{
t = t.next;
}
t.next = new LineList();
t.next.lineno = lineno;
}
}