生成跨语言的类型声明和接口绑定的工具（Djinni ）

Djinni 是一个用来生成跨语言的类型声明和接口绑定的工具，主要用于 C++ 和 Java 以及 Objective-C 间的互通。

示例接口定义文件：

 # Multi-line comments can be added here. This comment will be propagated
 # to each generated definition.
 my_enum = enum {
     option1;
     option2;
     option3;
 }

 my_record = record {
     id: i32;
     info: string;
     store: set<string>;
     hash: map<string, i32>;

     values: list<another_record>;

     # Comments can also be put here

     # Constants can be included
     const string_const: string = "Constants can be put here";
     const min_value: another_record = {
         key1 = ,
         key2 = ""
     };
 }

 another_record = record {
     key1: i32;
     key2: string;
 } deriving (eq, ord)

 # This interface will be implemented in C++ and can be called from any language.
 my_cpp_interface = interface +c {
     method_returning_nothing(value: i32);
     method_returning_some_type(key: string): another_record;
     static get_version(): i32;

     # Interfaces can also have constants
     const version: i32 = ;
 }

 # This interface will be implemented in Java and ObjC and can be called from C++.
 my_client_interface = interface +j +o {
     log_string(str: string): bool;
 }

使用方法：

 @import "relative/path/to/filename.djinni"

github地址：https://github.com/dropbox/djinni