cafe-grader-web Files · node_modules/falafel/example/prompt.js

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                    node_modules/falafel/example/prompt.js
                
             | 49 lines
             | 1.2 KiB
             | application/javascript 
             | JavascriptLexer
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      var falafel = require('../');

      var vm = require('vm');

      var termExps = [

          'Identifier',

          'CallExpression',

          'BinaryExpression',

          'UpdateExpression',

          'UnaryExpression'

      ].reduce(function (acc, key) { acc[key] = true; return acc }, {});

      function terminated (node) {

          for (var p = node; p.parent; p = p.parent) {

              if (termExps[p.type]) return true;

          }

          return false;

      }

      var src = '{"a":[2,~9,prompt(":d")],"b":4,"c":prompt("beep"),"d":6}';

      var offsets = [];

      var output = falafel('(' + src + ')', function (node) {

          var isLeaf = node.parent

              && !terminated(node.parent) && terminated(node)

          ;

          if (isLeaf) {

              var s = node.source();

              var prompted = false;

              var res = vm.runInNewContext('(' + s + ')', {

                  prompt : function (x) {

                      setTimeout(function () {

                          node.update(x.toUpperCase());

                      }, Math.random() * 50);

                      prompted = true;

                  }

              });

              if (!prompted) {

                  var s_ = JSON.stringify(res);

                  node.update(s_);

              }

          }

      });

      setTimeout(function () {

          console.log(src);

          console.log('---');

          console.log(output);

      }, 200);

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				var falafel = require('../');
				var vm = require('vm');

				var termExps = [
				'Identifier',
				'CallExpression',
				'BinaryExpression',
				'UpdateExpression',
				'UnaryExpression'
				].reduce(function (acc, key) { acc[key] = true; return acc }, {});

				function terminated (node) {
				for (var p = node; p.parent; p = p.parent) {
				if (termExps[p.type]) return true;
				}
				return false;
				}

				var src = '{"a":[2,~9,prompt(":d")],"b":4,"c":prompt("beep"),"d":6}';

				var offsets = [];
				var output = falafel('(' + src + ')', function (node) {
				var isLeaf = node.parent
				&& !terminated(node.parent) && terminated(node)
				;

				if (isLeaf) {
				var s = node.source();
				var prompted = false;
				var res = vm.runInNewContext('(' + s + ')', {
				prompt : function (x) {
				setTimeout(function () {
				node.update(x.toUpperCase());
				}, Math.random() * 50);
				prompted = true;
				}
				});
				if (!prompted) {
				var s_ = JSON.stringify(res);
				node.update(s_);
				}
				}
				});

				setTimeout(function () {
				console.log(src);
				console.log('---');
				console.log(output);
				}, 200);