546669204 / javascript-interpreter

用js实现js的解释器。

Javascript-Interpreter

用js实现js的解释器。

demo: https://546669204.github.io/javascript-interpreter/

Expression

• ArrayExpression [1,2,3,...]
• AssignmentExpression a = 1
• BinaryExpression a>b
• CallExpression x()
• ConditionalExpression x?a:b
• FunctionExpression var x = function(){}
• LogicalExpression a || b
• MemberExpression a.b.c
• NewExpression new x
• ObjectExpression {a:"1",...}
• SequenceExpression expression1,expression2,...
• ThisExpression this
• UnaryExpression !x/~x/...
• UpdateExpression x++/x--/...

Statement

• BlockStatement {}
• BreakStatement break
• ContinueStatement continue
• DoWhileStatement do while
• EmptyStatement ;
• ExpressionStatement exp;
• ForInStatement for in
• ForStatement for
• FunctionDeclaration function
• IfStatement if else
• LabeledStatement label:
• ReturnStatement return
• SwitchStatement switch
• ThrowStatement throw
• TryStatement try catch
• VariableDeclaration var let const
• WhileStatement while
• WithStatement with

TEST

# 安装依赖
yarn
# 构建成果
yarn build
# 运行jest测试
yarn test

TODO

• 递归转循环
• 效率升级
• jest test262 测试用例

dep

https://github.com/facebook/jest
https://github.com/acornjs/acorn
https://github.com/babel/babel

https://262.ecma-international.org/5.1/#sec-12.1
https://developer.mozilla.org/
https://astexplorer.net/
https://github.com/tc39/test262