Exemple #1
0
 private static Object.Object EvalIdentifier(Ast.Identifier node, Object.Environment env)
 {
     if (env.Exist(node.Value))
     {
         return(env.Get(node.Value));
     }
     if (builtins.ContainsKey(node.Value))
     {
         return(builtins[node.Value]);
     }
     return(new Object.Error {
         Message = $"identifier not found: {node.Value}"
     });
 }
Exemple #2
0
        static Object.Object evalIdentifier(ast.Identifier node, Object.Environment env)
        {
            Object.Object val = env.Get(node.Value);
            if (val != null)
            {
                return(val);
            }

            Object.Builtin builtin;
            if (evaluator_builtins.builtins.TryGetValue(node.Value, out builtin))
            {
                return(builtin);
            }

            return(newError("identifier not found: " + node.Value));;
        }
Exemple #3
0
        private static MonkeyObject evalIdentifier(Identifier id, Object.Environment environment)
        {
            if (environment.Get(id.Value, out var value))
            {
                return(value);
            }

            if (Builtins.builtins.TryGetValue(id.Value, out var builtin))
            {
                return(builtin);
            }

            return(new MonkeyError {
                Message = $"identifier not found: {id.Value}"
            });
        }
        static Object.Macro isMacroCall(ast.CallExpression exp, Object.Environment env)
        {
            if (!(exp.Function is ast.Identifier))
            {
                return(null);
            }
            ast.Identifier identifier = (ast.Identifier)exp.Function;

            Object.Object obj = env.Get(identifier.Value);
            if (obj == null)
            {
                return(null);
            }

            if (!(obj is Object.Macro))
            {
                return(null);
            }
            Object.Macro macro = (Object.Macro)obj;

            return(macro);
        }