public static IExpression BuildBinaryExpression(List <Token> tokens, ref int index, IExpression leftExpr, Stack <int?> precedenceStack)
{
IBinaryExpressionCreator bxc = binaryExpressionCreators[tokens[index++].Value];
IBinaryExpression bx = bxc.Create();
bx.Left = leftExpr;
precedenceStack.Push(bx.Precedence);
bx.BuildExpression(tokens, ref index, precedenceStack);
precedenceStack.Pop();
return(bx);
}
public static IExpression BuildBinaryExpression(TokenList tokens, IExpression leftExpr, Stack <int?> precedenceStack)
{
IBinaryExpressionCreator bxc = binaryExpressionCreators[tokens.Current.Value];
IBinaryExpression bx = bxc.Create();
bx.Left = leftExpr;
precedenceStack.Push(bx.Precedence);
bx.PrepareExpression(tokens, precedenceStack);
precedenceStack.Pop();
return(bx);
}
static TokenParser()
{
instructionCreators = new Dictionary <string, IInstructionCreator>();
binaryExpressionCreators = new Dictionary <string, IBinaryExpressionCreator>();
expressionCreators = new Dictionary <string, IExpressionCreator>();
foreach (Type t in Core.Modules.GetInterfaceImplementations(typeof(IInstructionCreator)))
{
IInstructionCreator ic = (IInstructionCreator)Activator.CreateInstance(t);
instructionCreators.Add(ic.Keyword.ToLower(), ic);
}
foreach (Type t in Core.Modules.GetInterfaceImplementations(typeof(IBinaryExpressionCreator)))
{
IBinaryExpressionCreator bxc = (IBinaryExpressionCreator)Activator.CreateInstance(t);
binaryExpressionCreators.Add(bxc.Keyword.ToLower(), bxc);
}
foreach (Type t in Core.Modules.GetInterfaceImplementations(typeof(IExpressionCreator)))
{
IExpressionCreator xc = (IExpressionCreator)Activator.CreateInstance(t);
expressionCreators.Add(xc.Keyword.ToLower(), xc);
}
}
