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27 lines
636 B
JavaScript

"use strict";
/**
* `eval` the given source, using properties found in `context` as top-level variables.
*
* Based on `vm.runInContext` found in Node.js, this is a cross-env solution.
*/
function runInContext( source, context ) {
const argumentKeys = Object.keys( context );
const argumentValues = argumentKeys.map( argument => context[ argument ] );
const object = {};
argumentKeys.push( "_peg$object", `_peg$object.result = ${ source };` );
argumentValues.push( object );
Function( ...argumentKeys )( ...argumentValues );
return object.result;
}
// Exports
module.exports = { runInContext };