// Constructor.
internal FunctionScope(ScriptObject parent, JFormalParams fparams,
Object thisObject, Object[] args)
: base(parent, new JSObject())
{
this.thisObject = thisObject;
if(fparams != null)
{
JExprListElem param = fparams.first;
int posn = 0;
while(param != null && posn < args.Length)
{
((IVariableAccess)this).SetVariable
(Convert.ToString(param.name), args[posn++]);
param = param.next;
}
while(param != null)
{
((IVariableAccess)this).SetVariable
(Convert.ToString(param.name), null);
param = param.next;
}
}
}
// Parse a function declaration or expression.
private JNode Function(bool needIdentifier)
{
Context save = tokenInfo.MakeCopy();
String name = null;
JFormalParams fparams;
JNode body;
// Skip the "function" keyword.
NextToken();
// Get the function name.
if(token == JSToken.Identifier)
{
name = scanner.GetIdentifierName();
NextToken();
}
else if(needIdentifier)
{
SyntaxError("function name expected");
}
// Parse the formal parameter list.
fparams = new JFormalParams(tokenInfo.MakeCopy());
Expect(JSToken.LeftParen, "`(' expected");
while(token == JSToken.Identifier)
{
Support.AddExprToList
(fparams, scanner.GetIdentifierName(), null);
NextToken();
if(token == JSToken.Comma)
{
NextToken();
}
else if(token != JSToken.RightParen)
{
SyntaxError("`)' or ',' expected");
}
}
fparams.context = Context.BuildRange
(fparams.context, tokenInfo);
Expect(JSToken.RightParen, "`)' expected");
// Parse the function body.
body = Block();
// Build the final function definition node.
return new JFunction(Context.BuildRange(save, body.context),
name, fparams, body);
}
public JFunction(Context context, String name, JFormalParams fparams, JNode body)
: base(context)
{
this.kind__ = KIND;
this.name = name;
this.fparams = fparams;
this.body = body;
}