public override DynamicMetaObject FallbackSetIndex(DynamicMetaObject target, DynamicMetaObject[] indexes, DynamicMetaObject value, DynamicMetaObject errorSuggestion)
{
try
{
return(new DynamicMetaObject(
YacqExpression.Function(this._symbols, "=",
YacqExpression.Function(this._symbols, ".",
target.Expression.Reduce(this._symbols).TryConvert(target.RuntimeType),
YacqExpression.Vector(this._symbols,
indexes.SelectAll(o => o.Expression.Reduce(this._symbols).TryConvert(target.RuntimeType))
)
),
value.Expression.Reduce(this._symbols).TryConvert(target.RuntimeType)
).Reduce(this._symbols).TryConvert(typeof(Object)),
target.Restrictions
));
}
catch (Exception ex)
{
return(errorSuggestion
?? new DynamicMetaObject(
Expression.Throw(Expression.Constant(ex), typeof(Object)),
BindingRestrictions.Empty
));
}
}
public override DynamicMetaObject FallbackUnaryOperation(DynamicMetaObject target, DynamicMetaObject errorSuggestion)
{
try
{
return(new DynamicMetaObject(
YacqExpression.Function(this._symbols, GetSymbolName(this.Operation),
target.Expression.Reduce(_symbols).TryConvert(target.RuntimeType)
).Reduce(this._symbols).TryConvert(typeof(Object)),
target.Restrictions
));
}
catch (Exception ex)
{
return(errorSuggestion
?? new DynamicMetaObject(
Expression.Throw(Expression.Constant(ex), typeof(Object)),
BindingRestrictions.Empty
));
}
}
public static Expression Tab(DispatchExpression e, SymbolTable s, Type t)
{
return(YacqExpression.TypeCandidate(typeof(Setting))
.Member(s, "Instance")
.Member(s, "StateProperty")
.Member(s, "TabInformations")
.Method(s, "SelectMany",
YacqExpression.Function(s, "\\",
YacqExpression.Vector(s, YacqExpression.Identifier(s, "e")),
YacqExpression.Identifier(s, "e")
)
)
.Method(s, "First",
YacqExpression.LambdaList(s,
YacqExpression.Identifier(s, "=="),
YacqExpression.Identifier(s, "$0").Member(s, "Name"),
e.Arguments[0]
)
)
.Member(s, "TweetSources")
.Method(s, "Single"));
}
public override DynamicMetaObject FallbackSetMember(DynamicMetaObject target, DynamicMetaObject value, DynamicMetaObject errorSuggestion)
{
try
{
return(new DynamicMetaObject(
YacqExpression.Function(this._symbols, "=",
(Static.GetTargetType(target.Value)
.Null(t => YacqExpression.TypeCandidate(this._symbols, t))
?? target.Expression.Reduce(this._symbols).TryConvert(target.RuntimeType)
).Member(this._symbols, this.Name),
value.Expression.Reduce(this._symbols).TryConvert(target.RuntimeType)
).Reduce(this._symbols).TryConvert(typeof(Object)),
target.Restrictions
));
}
catch (Exception ex)
{
return(errorSuggestion
?? new DynamicMetaObject(
Expression.Throw(Expression.Constant(ex), typeof(Object)),
BindingRestrictions.Empty
));
}
}
