testing esprima/escodegen

strip console

#!/usr/local/bin/node

var parse = require('esprima').parse;
var generate = require('escodegen').generate;

// MULTI ARGS ====================================
var code = "console.log('a', 'b', 'c');";
console.log(code);
console.log( '====' );
var ast = parse(code);
var args = ast.body[0].expression.arguments;
ast.body[0].expression = {
	type: 'SequenceExpression',
	expressions: args
};
console.log( JSON.stringify( ast, null, 2) );
console.log( '====' );
console.log( generate(ast) );
console.log( '====' );

// SINGLE ARG ====================================
var code = "console.log('a');";
console.log(code);
console.log( '====' );
var ast = parse(code);
if (2 > ast.body[0].expression.arguments.length) {
	var args = ast.body[0].expression.arguments;
	ast.body[0].expression = args[0];
}
console.log( JSON.stringify( ast, null, 2) );
console.log( '====' );
console.log( generate(ast) );
console.log( '====' );

// ZERO ARGS ====================================
var code = "console.log();";
console.log(code);
console.log( '====' );
var ast = parse(code);
if (0 === ast.body[0].expression.arguments.length) {
	ast.body.splice(0, 1);
}
console.log( JSON.stringify( ast, null, 2) );
console.log( '====' );
console.log( generate(ast) );