juggle添加c#版本

juggle添加c#版本

此前做过一个c++版的网络层dsl：http://www.cnblogs.com/qianqians/p/4255034.html

现在给这个dsl加入c#的支持，并且对代码的结构做了优化,将语法解析和代码生成做了解耦

语法解析部分

class func(object):

    def __init__(self):

        self.keyworld = ''

        self.func = []

        self.argvtuple = None

    def clear(self):

        self.keyworld = ''

        self.func = []

        self.argvtuple = None

    def push(self, ch):

        if ch == ' ' or ch == '\0':

            self.keyworld = deleteNoneSpacelstrip(self.keyworld)

            if self.keyworld != '':

                if self.argvtuple is None:

                    self.func.append(deleteNoneSpacelstrip(self.keyworld))

                else:

                    if self.keyworld in ['table', 'array', 'int', 'string', 'float', 'bool']:

                        self.argvtuple.append(deleteNoneSpacelstrip(self.keyworld))

                self.keyworld = ''

            return False

        if ch == ',':

            if self.keyworld != '' and self.keyworld in ['table', 'array', 'int', 'string', 'float', 'bool']:

                self.argvtuple.append(deleteNoneSpacelstrip(self.keyworld))

                self.keyworld = ''

            return False

        if ch == '(':

            self.keyworld = deleteNoneSpacelstrip(self.keyworld)

            if self.keyworld != '':

                self.func.append(deleteNoneSpacelstrip(self.keyworld))

            self.argvtuple = []

            self.keyworld = ''

            return False

        if ch == ')':

            if self.keyworld != '' and self.keyworld in ['table', 'array', 'int', 'string', 'float', 'bool']:

                self.argvtuple.append(deleteNoneSpacelstrip(self.keyworld))

            if self.argvtuple is None:

                self.func.append([])

            else:

                self.func.append(self.argvtuple)

            self.keyworld = ''

            return False

        if ch == ';':

            return True

        self.keyworld += ch

        return False

class module(object):

    def __init__(self):

        self.keyworld = ''

        self.name = ''

        self.module = []

        self.machine = None

    def push(self, ch):

        if ch == '}':

            self.machine = None

            return True

        if self.machine is not None:

            if self.machine.push(ch):

                self.module.append(self.machine.func)

                self.machine.clear()

        else:

            if ch == '{':

                self.name = deleteNoneSpacelstrip(self.keyworld)

                self.keyworld = ''

                self.machine = func()

                return False

            self.keyworld += ch

        return False

class statemachine(object):

    def __init__(self):

        self.keyworld = ''

        self.module = {}

        self.machine = None

    def push(self, ch):

        if self.machine is not None:

            if self.machine.push(ch):

                if isinstance(self.machine, module):

                    self.module[self.machine.name] = self.machine.module

                    self.machine = None

        else:

            if ch == ' ' or ch == '\0':

                if deleteNoneSpacelstrip(self.keyworld) == 'module':

                    self.machine = module()

                    self.keyworld = ''

            else:

                self.keyworld += ch

    def getmodule(self):

        return self.module

    def syntaxanalysis(self, genfilestr):

        for str in genfilestr:

            for ch in str:

                self.push(ch)

解析采用状态机机制，逐字符读取代码在读取到关键字符则跳转状态，并且保持读取到的关键字。

读取的关键字采用table方式保持

module：[funcinfo, ...]

在代码生成部分，按解析获取的语法table生成module和caller代码，分别是事件的响应和调用端。

def gencaller(module_name, funcs):

        code = "/*this caller file is codegen by juggle*/\n"

        code += "using System;\n"

        code += "using System.Collections;\n"

        code += "using System.IO;\n"

        code += "using MsgPack;\n"

        code += "using MsgPack.Serialization;\n\n"

        code += "namespace caller\n"

        code += "{\n"

        code += "    public class " + module_name + " : Icaller \n"

        code += "    {\n"

        code += "        public " + module_name + "(Ichannel _ch) : base(_ch)\n"

        code += "        {\n"

        code += "            module_name = \"" + module_name + "\";\n"

        code += "        }\n\n"

        for i in funcs:

                code += "        public void " + i[1] + "("

                count = 0

                for item in i[2]:

                        code += tools.gentypetocsharp(item) + " argv" + str(count)

                        count = count + 1

                        if count < len(i[2]):

                                code += ","

                code += ")\n"

                code += "        {\n"

                code += "            ArrayList _argv = new ArrayList();\n"

                for n in range(len(i[2])):

                        code += "            _argv.Add(argv" + str(n) + ");\n"

                code += "            call_module_method(\"" + i[1] + "\", _argv);\n"

                code += "        }\n\n"

        code += "    }\n"

        code += "}\n"

        return code

def genmodule(module_name, funcs):

    code = "/*this module file is codegen by juggle*/\n"

    code += "using System;\n"

    code += "using System.Collections;\n\n"

    code += "namespace module\n{\n"

    code += "    public class " + module_name + " : Imodule \n    {\n"

    code += "        public " + module_name + "()\n        {\n"

    code += "            module_name = \"" + module_name + "\";\n"

    code += "        }\n\n"

    for i in funcs:

        code += "        public abstract void " + i[1] + "("

        count = 0

        for item in i[2]:

            code += tools.gentypetocsharp(item) + " argv" + str(count)

            count = count + 1

        code += ");\n\n"

    code += "    }\n"

    code += "}\n"

    return code

和juggle的上个版本不同，为了简洁的用于开发游戏服务器，这个版本删除了同步调用功能，只保留异步调用，对同步调用感兴趣的 可以阅读darckforce里面的代码:https://github.com/qianqians/darkforce/tree/master/juggle

这个版本的代码地址在:https://github.com/qianqians/abelkhan

我将基于这个版本的juggle开发一个开源的游戏服务器框架，欢迎大家在论坛或博客给我留言提出意见