esprima.js
712 Bytes
"use strict";
// This module is suitable for passing as options.parser when calling
// recast.parse to process ECMAScript code with Esprima:
//
// const ast = recast.parse(source, {
// parser: require("recast/parsers/esprima")
// });
//
const getOption = require("../lib/util.js").getOption;
exports.parse = function (source, options) {
const comments = [];
const ast = require("esprima").parse(source, {
loc: true,
locations: true,
comment: true,
onComment: comments,
range: getOption(options, "range", false),
tolerant: getOption(options, "tolerant", true),
tokens: true
});
if (! Array.isArray(ast.comments)) {
ast.comments = comments;
}
return ast;
};