static Expression CompileReturnStat(Ast.ReturnStat ret, LabelTarget returnTarget, Expression Context)
{
var variable = Expression.Parameter(LuaArguments_Type);
var body = new List <Expression>();
var ctor = Expression.New(LuaArguments_New_void);
body.Add(Expression.Assign(variable, ctor));
int i = 0;
foreach (IExpression expr in ret.Expressions)
{
if (i == ret.Expressions.Count - 1)
{
var exp = CompileExpression(expr, Context);
body.Add(Expression.Call(variable, LuaArguments_Concat, exp));
}
else
{
var exp = CompileSingleExpression(expr, Context);
body.Add(Expression.Call(variable, LuaArguments_Add, exp));
}
}
body.Add(Expression.Return(returnTarget, variable));
return(Expression.Block(new[] { variable }, body.ToArray()));
}
Ast.ReturnStat ParseReturnStat(ParseTreeNode node)
{
if (node.Term.Name == "ReturnStat")
{
Ast.ReturnStat ret = new Ast.ReturnStat();
var child = node.ChildNodes[1];
while (child.ChildNodes.Count > 0)
{
child = child.ChildNodes[0];
ret.Expressions.Add(ParseExpression(child.ChildNodes[0]));
child = child.ChildNodes[1];
}
return(ret);
}
throw new Exception("Invalid ReturnStat node");
}
Ast.ReturnStat ParseReturnStat(ParseTreeNode node)
{
if (node.Term.Name == "ReturnStat")
{
Ast.ReturnStat ret = new Ast.ReturnStat();
var child = node.ChildNodes[1];
while (child.ChildNodes.Count > 0)
{
child = child.ChildNodes[0];
ret.Expressions.Add(ParseExpression(child.ChildNodes[0]));
child = child.ChildNodes[1];
}
return ret;
}
throw new Exception("Invalid ReturnStat node");
}