internal static MemberAccessExpr Bound(Binder b, Expr expr, Expr member, BindAffinity affinity)
{
expr.RequireValue();
var e = new MemberAccessExpr(expr, Token.None, member);
e.Symbol = b.BindMemberAccess(ref e.Expr, ref e.Member, affinity);
e.Datatype = e.Symbol.Type();
return(e);
}
internal static MethodCallExpr Bound(Binder b, Expr e, Symbol sym, Expr self, ArgList args)
{
Expr boundSelf;
Expr writeBack;
if (self != null)
{
e = new MemberAccessExpr(self, null, null);
}
var m = b.BindMethodCall(e, sym, args, out boundSelf, out writeBack);
return(new MethodCallExpr(e, args)
{
Symbol = m, Datatype = m.Type(), Self = boundSelf, WriteBack = writeBack
});
}
internal static MethodCallExpr Bound(Binder b, Expr e, string name, ArgList args)
{
Expr m = new IdExpr(name);
Expr self;
Expr writeBack;
var ms = b.BindMemberAccess(ref e, ref m, BindAffinity.Invoke);
if (!(ms is MethodSymbol))
{
throw e.Error(ErrorCode.Internal);
}
var expr = new MemberAccessExpr(e, e.Token, m)
{
Symbol = ms
};
var sym = b.BindMethodCall(expr, ms, ArgList.Empty, out self, out writeBack);
return(Bound(e, sym, self, ArgList.Empty, writeBack));
}
internal override Node Bind(Binder b)
{
b.Bind(ref Expr, BindAffinity.Type);
var s = Expr.Symbol.UniqueTypeOrNamespace();
if (s is TypeSymbol t)
{
Expr.Symbol = t;
Symbol = b.Lookup(t, Member.LookupName) ?? ThrowError(Binder.LookupError(Expr, this));
Datatype = Symbol.Type();
}
else if (s is NamespaceSymbol ns)
{
Expr.Symbol = ns;
Symbol = b.Lookup(ns, Member.LookupName) ?? ThrowError(Binder.LookupError(Expr, this));
Datatype = Symbol.Type();
}
if (Symbol == null)
{
if (b.Options.AllowDotAccess)
{
if (b.Options.UndeclaredVariableResolution != VariableResolution.TreatAsField)
{
Expr.Symbol = null; // re-bind Expr -- this is a hack!!!
b.Bind(ref Expr, Affinity);
}
if (Expr.Symbol.UniqueIdent() != null)
{
return(MemberAccessExpr.Bound(b, Expr, Member, Affinity));
}
if (Expr is NameExpr aname && Member is NameExpr fname)
{
return(AliasExpr.Bound(aname.LookupName, fname.LookupName));
}
Expr.RequireValue();
}
else
{
Expr.RequireType();
}
}
return(null);
}