public SilverFunction(string name, List<FunctionArgument> arguments, BlockExpression body, SilverScope context)
{
Name = name;
Arguments = arguments;
Body = body;
Context = context;
}
public override object Run(Scope scope)
{
var body = (Body as BlockExpression);
body.Scope.MergeWithScope(Silver.Globals);
body.Scope.MergeWithScope(scope);
var visitor = new VariableNameVisitor();
visitor.Visit(body);
body.SetChildrenScopes(body.Scope);
dynamic block = CompilerServices.CreateLambdaForExpression(body);
dynamic res = block();
if (res is Symbol) {
var symval = new BlockExpression(new List<Expression> {new VariableExpression(res)}, body.Scope);
res = CompilerServices.CreateLambdaForExpression(symval)();
}
else if (res is SilverInstance) {
var so = (SilverInstance) res;
if (so is SilverBoxedInstance) {
res = ((SilverBoxedInstance) so).BoxedObject;
}
}
else if (res is SilverNumber)
{
res = SilverNumber.Convert(res);
}
else if (res is SilverString) {
res = (string) res;
}
else if (res is SilverArray) {
res = ConvertElements((SilverArray)res);
}
else if (res is SilverDictionary) {
res = ConvertElements((SilverDictionary)res);
}
body.Scope.MergeIntoScope(scope);
return res;
}
internal object Run(SilverScope scope)
{
var body = (BlockExpression) Body;
body.SetScope(scope);
body.SetChildrenScopes(body.Scope);
dynamic block = CompilerServices.CreateLambdaForExpression(Expression.Block(body));
dynamic res = block();
if (res is Symbol) {
var symval = new BlockExpression(new List<Expression> {new VariableExpression(res)}, body.Scope);
res = CompilerServices.CreateLambdaForExpression(symval)();
}
return res;
}
protected virtual Expression VisitBlock(BlockExpression node)
{
node.Body.ForEach(arg => Visit(arg));
return node;
}
