Colang是一种编程语言，旨在创造一种动态语法的静态编译语言

./colang [options] file
    run   file  ast -> asm       编译为汇编-链接生成可执行程序自动执行
    -s    file  ast -> asm       编译为汇编
    -llvm file  ast -> ir -> asm 基于llvm生成汇编

• compiler
  • run 采用gcc进行汇编和链接glibc
  • -s 生成.s汇编文件
  • llvm
• asmer 自举汇编编译器，翻译机器指令
• linker 自举链接器,生成可执行二进制文件

env & install

> uname -a
Linux ubuntu 4.4.0-157-generic #185-Ubuntu SMP Tue Jul 23 09:17:01 UTC 2019 x86_64 x86_64 x86_64 GNU/Linux
> gcc -v
gcc version 7.5.0 (Ubuntu 7.5.0-3ubuntu1~18.04) 
> git clone https://github.com/brewlin/colang.git
> cd colang/tests
> export CO_SRC=/path/to/colang/runtime
> cmake .. & make
> dos2unix auto_tests.sh & sh auto_tests.sh

@progress

更多语法测试用例在/tests目录下，包含了各种数据结构、运算、gc、demo测试

@GC

• 完成python的内存分配器+标记清除式GC
• 优化 > 256 bytes的大内存gc
• 优化采用 golang的多线程内存分配 + 增量式三色标记gc

@data struct

• long int
• double
• string
• bool
• map
• array
• object

package main
import fmt

class http{
    # member
    request
    # func
    func handler(){
        fmt.println("hello world!")
        fmt.println(this.request)
    }
}
func main(){
    a = "this is a string"
    fmt.println(a)
    a = 1000
    fmt.println(a)
    a = ["1",2,"33",4,"some string word"]
    fmt.print(a[0],a[1],a[2],a[3],a[4])
    //or fmt.print(a)
    b = {"sdfds":"sdfsd",1:2,"sdfds":3,"a":a}
    fmt.print(b["a"],b["sdfds"])
    obj = new http()
    obj.request = {"method":"POST"}
    obj.handler()
    
}

@keywords

• func
• return
• package,import
• if
• while
• continue,break

package main
func main(){
    a = "str"
    if(a == "str"){
    }
    b = 10
    while(b){
        if(b == 5){
            continue
        }
        if(b == 2){
            break
        }
        b -= 1
    }
}

@operators

• + and +=
• - and -=
• * and *=
• \ and \=
• << and <<=
• >> and >>=
• & and &=
• | and |=
• || and &&
• > and >=
• < and <=
• == and !=