acorn-es7-plugin

acorn-es7-plugin

acorn-es7-plugin is a plugin for the Acorn parser that generates ESTrees following the 'experimental' specification for asynchronous functions.

npm install --save acorn-es7-plugin

Usage

Adding the plugin

// Require acorn as usual
var acorn = require("acorn");
// Add the es7-plugin
require('./acorn-es7-plugin')(acorn) ;

Using the plugin

var code = "async function x(){ return ; }\n";
code += "await x(1);" ;

var ast = acorn.parse(code,{
// Specify use of the plugin
	plugins:{asyncawait:true},
// Specify the ecmaVersion
	ecmaVersion:7
}) ;
// Show the AST
console.log(JSON.stringify(ast,null,2)) ;