static Expression CompileLocalAssignment(Ast.LocalAssignment assign, Expression Context)
{
var variable = Expression.Parameter(typeof(LuaArguments), "vars");
var stats = new List <Expression>();
stats.Add(Expression.Assign(variable, Expression.New(LuaArguments_New_void)));
foreach (IExpression expr in assign.Values)
{
var ret = CompileExpression(expr, Context);
stats.Add(Expression.Call(variable, LuaArguments_Concat, ret));
}
int i = 0;
foreach (string var in assign.Names)
{
var arg = GetArgument(variable, i);
stats.Add(Expression.Call(Context, LuaContext_SetLocal, Expression.Constant(var), arg));
i++;
}
return(Expression.Block(new[] { variable }, stats.ToArray()));
}
Ast.LocalAssignment ParseLocalAssign(ParseTreeNode node)
{
if (node.Term.Name == "LocalAssignment")
{
Ast.LocalAssignment assign = new Ast.LocalAssignment();
var child = node.ChildNodes[1];
if (child.ChildNodes[0].Term.Name == "LocalFunction")
{
child = child.ChildNodes[0];
var argsNode = child.ChildNodes[2];
var blockNode = child.ChildNodes[3];
assign.Names.Add(child.ChildNodes[1].Token.ValueString);
var func = new Ast.FunctionDefinition();
if (argsNode.ChildNodes.Count > 0)
{
argsNode = argsNode.ChildNodes[0];
while (argsNode.ChildNodes.Count > 0)
{
string ident = argsNode.ChildNodes[0].Token.ValueString;
func.Arguments.Add(new Ast.Argument()
{
Name = ident
});
if (argsNode.ChildNodes.Count == 1)
{
break;
}
argsNode = argsNode.ChildNodes[1];
}
}
func.Body = ParseBlock(blockNode);
assign.Values.Add(func);
return(assign);
}
var left = child.ChildNodes[0];
var right = child.ChildNodes[1];
assign.Names.Add(left.ChildNodes[0].Token.ValueString);
left = left.ChildNodes[1];
while (left.ChildNodes.Count > 0)
{
left = left.ChildNodes[0];
assign.Names.Add(left.ChildNodes[0].Token.ValueString);
left = left.ChildNodes[1];
}
while (right.ChildNodes.Count > 0)
{
right = right.ChildNodes[0];
assign.Values.Add(ParseExpression(right.ChildNodes[0]));
right = right.ChildNodes[1];
}
return(assign);
}
throw new Exception("Invalid LocalAssignment node");
}
Ast.LocalAssignment ParseLocalAssign(ParseTreeNode node)
{
if (node.Term.Name == "LocalAssignment")
{
Ast.LocalAssignment assign = new Ast.LocalAssignment();
var child = node.ChildNodes[1];
if (child.ChildNodes[0].Term.Name == "LocalFunction")
{
child = child.ChildNodes[0];
var argsNode = child.ChildNodes[2];
var blockNode = child.ChildNodes[3];
assign.Names.Add(child.ChildNodes[1].Token.ValueString);
var func = new Ast.FunctionDefinition();
if (argsNode.ChildNodes.Count > 0)
{
argsNode = argsNode.ChildNodes[0];
while (argsNode.ChildNodes.Count > 0)
{
string ident = argsNode.ChildNodes[0].Token.ValueString;
func.Arguments.Add(new Ast.Argument() { Name = ident });
if (argsNode.ChildNodes.Count == 1)
break;
argsNode = argsNode.ChildNodes[1];
}
}
func.Body = ParseBlock(blockNode);
assign.Values.Add(func);
return assign;
}
var left = child.ChildNodes[0];
var right = child.ChildNodes[1];
assign.Names.Add(left.ChildNodes[0].Token.ValueString);
left = left.ChildNodes[1];
while (left.ChildNodes.Count > 0)
{
left = left.ChildNodes[0];
assign.Names.Add(left.ChildNodes[0].Token.ValueString);
left = left.ChildNodes[1];
}
while (right.ChildNodes.Count > 0)
{
right = right.ChildNodes[0];
assign.Values.Add(ParseExpression(right.ChildNodes[0]));
right = right.ChildNodes[1];
}
return assign;
}
throw new Exception("Invalid LocalAssignment node");
}
