/**
* @brief Add new variable to the dictionary.
*/
public bool AddEntry(TokenDeclVar var)
{
if (isFrozen)
{
throw new Exception("var dict is frozen");
}
// Make sure we have a sub-dictionary based on the bare name (ie, no signature)
Dictionary <ArgTypes, TDVEntry> typedic;
if (!master.TryGetValue(var.name.val, out typedic))
{
typedic = new Dictionary <ArgTypes, TDVEntry>();
master.Add(var.name.val, typedic);
}
// See if there is an entry in the sub-dictionary that matches the argument signature.
// Note that fields have null argument lists.
// Methods always have a non-null argument list, even if only 0 entries long.
ArgTypes types;
types.argTypes = (var.argDecl == null) ? null : KeyTypesToStringTypes(var.argDecl.types);
if (typedic.ContainsKey(types))
{
return(false);
}
// It is unique, add to its name-specific sub-dictionary.
TDVEntry entry;
entry.count = ++count;
entry.var = var;
typedic.Add(types, entry);
return(true);
}
public TokenDeclVar[] FindCallables(string name, TokenType[] argTypes)
{
argTypes = KeyTypesToStringTypes(argTypes);
TokenDeclVar var = FindExact(name, argTypes);
if (var != null)
{
return new TokenDeclVar[] { var }
}
;
Dictionary <ArgTypes, TDVEntry> typedic;
if (!master.TryGetValue(name, out typedic))
{
return(null);
}
found.Clear();
foreach (KeyValuePair <ArgTypes, TDVEntry> kvp in typedic)
{
if ((kvp.Value.count <= this.count) && kvp.Key.CanBeCalledBy(argTypes))
{
found.Add(kvp.Value.var);
}
}
return((found.Count > 0) ? found.ToArray() : null);
}
/**
* @brief build dictionary of internal functions from an interface.
* @param iface = interface with function definitions
* @param inclSig = true: catalog by name with arg sig, eg, llSay(integer,string)
* false: catalog by simple name only, eg, state_entry
* @returns dictionary of function definition tokens
*/
public InternalFuncDict(Type iface, bool inclSig)
: base(false)
{
/*
* Loop through list of all methods declared in the interface.
*/
System.Reflection.MethodInfo[] ifaceMethods = iface.GetMethods();
foreach (System.Reflection.MethodInfo ifaceMethod in ifaceMethods)
{
string key = ifaceMethod.Name;
/*
* Only do ones that begin with lower-case letters...
* as any others can't be referenced by scripts
*/
if ((key[0] < 'a') || (key[0] > 'z'))
{
continue;
}
try {
/*
* Create a corresponding TokenDeclVar struct.
*/
System.Reflection.ParameterInfo[] parameters = ifaceMethod.GetParameters();
TokenArgDecl argDecl = new TokenArgDecl(null);
for (int i = 0; i < parameters.Length; i++)
{
System.Reflection.ParameterInfo param = parameters[i];
TokenType type = TokenType.FromSysType(null, param.ParameterType);
TokenName name = new TokenName(null, param.Name);
argDecl.AddArg(type, name);
}
TokenDeclVar declFunc = new TokenDeclVar(null, null, null);
declFunc.name = new TokenName(null, key);
declFunc.retType = TokenType.FromSysType(null, ifaceMethod.ReturnType);
declFunc.argDecl = argDecl;
/*
* Add the TokenDeclVar struct to the dictionary.
*/
this.AddEntry(declFunc);
} catch (Exception except) {
string msg = except.ToString();
int i = msg.IndexOf("\n");
if (i > 0)
{
msg = msg.Substring(0, i);
}
Console.WriteLine("InternalFuncDict*: {0}: {1}", key, msg);
///??? IGNORE ANY THAT FAIL - LIKE UNRECOGNIZED TYPE ???///
}
}
}
/**
* @brief Find exact matching function/variable
* @param name = name of function to look for
* @param argTypes = argument types the function was declared with
* null to look for a variable
* @returns null: no matching function/variable found
* else: the matching function/variable
*/
public TokenDeclVar FindExact(string name, TokenType[] argTypes)
{
// Look for list of stuff that matches the given name.
Dictionary <ArgTypes, TDVEntry> typedic;
if (!master.TryGetValue(name, out typedic))
{
return(null);
}
// Loop through all fields/methods declared by that name, regardless of arg signature.
foreach (TDVEntry entry in typedic.Values)
{
if (entry.count > this.count)
{
continue;
}
TokenDeclVar var = entry.var;
// Get argument types of declaration.
// fields are always null
// methods are always non-null, though may be zero-length
TokenType[] declArgs = (var.argDecl == null) ? null : var.argDecl.types;
// Convert any key args to string args.
declArgs = KeyTypesToStringTypes(declArgs);
// If both are null, they are signature-less (ie, both are fields), and so match.
if ((declArgs == null) && (argTypes == null))
{
return(var);
}
// If calling a delegate, it is a match, regardless of delegate arg types.
// If it turns out the arg types do not match, the compiler will give an error
// trying to cast the arguments to the delegate arg types.
// We don't allow overloading same field name with different delegate types.
if ((declArgs == null) && (argTypes != null))
{
TokenType fieldType = var.type;
if (fieldType is TokenTypeSDTypeDelegate)
{
return(var);
}
}
// If not both null, no match, keep looking.
if ((declArgs == null) || (argTypes == null))
{
continue;
}
// Both not null, match argument types to make sure we have correct overload.
int i = declArgs.Length;
if (i != argTypes.Length)
{
continue;
}
while (--i >= 0)
{
string da = declArgs[i].ToString();
string ga = argTypes[i].ToString();
if (da == "key")
{
da = "string";
}
if (ga == "key")
{
ga = "string";
}
if (da != ga)
{
break;
}
}
if (i < 0)
{
return(var);
}
}
// No match.
return(null);
}
