C# (CSharp) cslox Stmt.Return示例

示例#1

文件： Interpreter.cs 项目： rlipscombe/cslox

        public Unit VisitReturn(Stmt.Return stmt)
        {
            object result = null;

            if (stmt.Value != null)
            {
                result = Evaluate(stmt.Value);
            }

            throw new Return(result);
        }

示例#2

        public object VisitReturnStmt(Stmt.Return stmt)
        {
            object value = null;

            if (stmt.Value != null)
            {
                value = Evaluate(stmt.Value);
            }

            throw new Return(value);
        }

示例#3

文件： Interpreter.cs 项目： andrewl33/cslox

        object Stmt.IVisitor <object> .VisitReturnStmt(Stmt.Return stmt)
        {
            object value = null;

            if (stmt.value != null)
            {
                value = Evaluate(stmt.value);
            }

            throw new Return(value);
        }

示例#4

        public Unit VisitReturn(Stmt.Return stmt)
        {
            if (_currentFunction == FunctionType.None)
            {
                _errors.AddResolverError(stmt.Keyword, "Cannot return from top-level code");
            }

            if (stmt.Value != null)
            {
                Resolve(stmt.Value);
            }

            return(Unit.Default);
        }

示例#5

        public object VisitReturnStmt(Stmt.Return stmt)
        {
            if (currentFunction == FunctionType.NONE)
            {
                Lox.Error(stmt.Keyword, "Cannot return from top-level code.");
            }
            else if (currentFunction == FunctionType.INITIALIZER)
            {
                Lox.Error(stmt.Keyword, "cannot return a value from an initializer.");
            }
            if (stmt.Value != null)
            {
                Resolve(stmt.Value);
            }

            return(null);
        }

示例#6

文件： Resolver.cs 项目： leddt/cslox

        public Void Visit(Stmt.Return stmt)
        {
            if (currentFunction == FunctionType.None)
            {
                Lox.Error(stmt.Keyword, "Cannot return from top-level code.");
            }

            if (stmt.Value != null)
            {
                if (currentFunction == FunctionType.Initializer)
                {
                    Lox.Error(stmt.Keyword, "Cannot return a value from an initializer.");
                }

                Resolve(stmt.Value);
            }

            return(Void.Instance);
        }

示例#7

        object Stmt.IVisitor <object> .VisitReturnStmt(Stmt.Return stmt)
        {
            if (currentFunction == FunctionType.NONE)
            {
                Lox.Error(stmt.keyword, "Cannot return from top-level code.");
            }

            if (stmt.value != null)
            {
                if (currentFunction == FunctionType.INITIALIZER)
                {
                    Lox.Error(stmt.keyword, "Cannot return a value from an initializer.");
                }

                Resolve(stmt.value);
            }

            return(null);
        }

示例#8

文件： ProgramPrinter.cs 项目： rlipscombe/cslox

 public string VisitReturn(Stmt.Return stmt)
 {
     return(Parenthesize("return", stmt.Value));
 }

示例#9

文件： Interpreter.cs 项目： leddt/cslox

        public Void Visit(Stmt.Return stmt)
        {
            var value = stmt.Value != null?Evaluate(stmt.Value) : null;

            throw new ReturnException(value);
        }