public FunctionGroupInstance(FunctionGroup template, GenericInstance instance, ScopeMember factory)
: base(template.GetName(), (Scope)factory)
{
// Instance all of the functions.
foreach(FunctionGroupName gname in template.GetFunctions())
{
// Instance the function.
Function tmplFunction = gname.GetFunction();
Function function = (Function)tmplFunction.InstanceMember(factory, instance);
// Create the new group name.
FunctionGroupName groupName = new FunctionGroupName(function.GetFunctionType(), gname.IsStatic());
groupName.SetFunction(function);
// Store the group name.
functions.Add(groupName);
}
}
public FunctionGroupInstance(FunctionGroup template, GenericInstance instance, ScopeMember factory)
: base(template.GetName(), (Scope)factory)
{
// Instance all of the functions.
foreach (FunctionGroupName gname in template.GetFunctions())
{
// Instance the function.
Function tmplFunction = gname.GetFunction();
Function function = (Function)tmplFunction.InstanceMember(factory, instance);
// Create the new group name.
FunctionGroupName groupName = new FunctionGroupName(function.GetFunctionType(), gname.IsStatic());
groupName.SetFunction(function);
// Store the group name.
functions.Add(groupName);
}
}
public override AstNode Visit(FunctionPrototype node)
{
// Get the name expression.
Expression nameExpression = node.GetNameExpression();
if (nameExpression == null)
{
return(node);
}
// Visit the name expression.
nameExpression.SetHints(Expression.MemberHint);
nameExpression.Accept(this);
// Get the function and his type.
Function function = node.GetFunction();
FunctionType functionType = function.GetFunctionType();
if (!function.IsMethod())
{
Error(node, "expected a method prototype.");
}
Method method = (Method)function;
// It must be a function selector.
IChelaType nameType = nameExpression.GetNodeType();
if (!nameType.IsFunctionGroup())
{
Error(nameExpression, "expected a function group.");
}
FunctionGroupSelector selector = (FunctionGroupSelector)nameExpression.GetNodeValue();
FunctionGroup group = selector.GetFunctionGroup();
// Find a matching function in the group.
Function match = null;
foreach (FunctionGroupName gname in group.GetFunctions())
{
// Ignore static functions.
if (gname.IsStatic())
{
continue;
}
// Check for match.
FunctionType candidate = gname.GetFunctionType();
// Found a match?.
if (MatchFunction(candidate, functionType, 1))
{
match = (Function)gname.GetFunction();
break;
}
}
// Raise an error.
if (match == null)
{
Error(nameExpression, "couldn't find matching interface member for {0}", functionType.GetName());
}
// TODO: Rename the method.
// Bind the contract.
method.SetExplicitContract(match);
return(node);
}
