编程语言的执行
解释执行 https://github.com/coffee-js/languages/wiki/简化的解释器入门和编程语言了解
Machine Code http://en./wiki/Compiled_language
中间语言
JVM http://en./wiki/List_of_JVM_languages
CLI http://en./wiki/List_of_CLI_languages
Parrot http://trac./parrot/wiki/Languages
JavaScript https://github.com/jashkenas/coffeescript/wiki/List-of-languages-that-...
LLVM(个人收集) http://segmentfault.com/a/1190000002639770
解释执行
代码 -> 语法树 -> 遍历语法树
(define a 1)
(print a)
(define (f a)
(set a (+ a 1)))
(return a)
(print (f a))
解析成 JSON:
[
["define", "a", "1"],
["print", "a"],
["define",
["f", "a"],
["set", "a", ["+", "a", "1"]],
["return", "a"]
],
["print", ["f", "a"]]
]
递归执行过程: eval(ast, env)
编译执行
类似解释执行, 但是输出结果是代码
对比生成 HTML, 动态生成 DOM, 静态编译 js 模版
Assembly
JVM Bytecode
LLVM IR (Intermediate Representation) http://www./llvm/#llvm-introduction
Parrot VM
JavaScript
C
Cirru
直接生成(编辑)语法树, 没有明确语法
Parser: https://github.com/Cirru/cirru-parser
Editor: https://github.com/Cirru/cirru-editor
Writer: http://github.com/Cirru/cirru-writer
https://github.com/Cirru/cirru-mustache
https://github.com/Cirru/cirru-html
https://github.com/Cirru/cirru-html-js
https://github.com/Cirru/cirru-json
https://github.com/Cirru/cirru-script
CirruScript
用 Cirru 语法生成 JavaScript
http://repo./script/index.html
https://github.com/Cirru/script-console
--- JavaScript as IR
Mozilla JavaScript AST
https://github.com/estree/estree/blob/master/spec.md
https:///constellation/escodegen-and-esmangle-using-moz...
http:///demo/parse.html
CoffeeScript2 -> CoffeeScript AST -> JavaScript AST -> JavaScript
Scirpus: Cirru -> ES6
Cirru AST -> ES6 AST -> ES5 AST -> JavaScript
https://github.com/babel/babel
