62 lines
1.5 KiB
JavaScript
62 lines
1.5 KiB
JavaScript
var vm = require('vm');
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function createContext() {
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var context = {
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// required by browserify
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XMLHttpRequest: function() { throw new Error('not implemented'); },
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localStorage: {
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// used by `debug` module
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debug: process.env.DEBUG
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},
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// used by DataSource.prototype.ready
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setTimeout: setTimeout,
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// used by `debug` module
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document: { documentElement: { style: {} } },
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// used by `debug` module
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navigator: { userAgent: 'sandbox' },
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// used by crypto-browserify & friends
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Int32Array: Int32Array,
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DataView: DataView,
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// allow the browserified code to log messages
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// call `printContextLogs(context)` to print the accumulated messages
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console: {
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log: function() {
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this._logs.log.push(Array.prototype.slice.call(arguments));
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},
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warn: function() {
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this._logs.warn.push(Array.prototype.slice.call(arguments));
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},
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error: function() {
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this._logs.error.push(Array.prototype.slice.call(arguments));
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},
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_logs: {
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log: [],
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warn: [],
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error: []
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},
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}
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};
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// `window` is used by loopback to detect browser runtime
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context.window = context;
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return vm.createContext(context);
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}
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exports.createContext = createContext;
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function printContextLogs(context) {
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for (var k in context.console._logs) {
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var items = context.console._logs[k];
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for (var ix in items) {
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console[k].apply(console, items[ix]);
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}
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}
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}
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exports.printContextLogs = printContextLogs;
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