{"version":3,"file":"global.min.js","sources":["../../src/extras/global.js"],"sourcesContent":["/*\n * SystemJS global script loading support\n * Extra for the s.js build only\n * (Included by default in system.js build)\n */\n(function (global) {\n  var systemJSPrototype = global.System.constructor.prototype;\n\n  // safari unpredictably lists some new globals first or second in object order\n  var firstGlobalProp, secondGlobalProp, lastGlobalProp;\n  function getGlobalProp (useFirstGlobalProp) {\n    var cnt = 0;\n    var foundLastProp, result;\n    for (var p in global) {\n      // do not check frames cause it could be removed during import\n      if (shouldSkipProperty(p))\n        continue;\n      if (cnt === 0 && p !== firstGlobalProp || cnt === 1 && p !== secondGlobalProp)\n        return p;\n      if (foundLastProp) {\n        lastGlobalProp = p;\n        result = useFirstGlobalProp && result || p;\n      }\n      else {\n        foundLastProp = p === lastGlobalProp;\n      }\n      cnt++;\n    }\n    return result;\n  }\n\n  function noteGlobalProps () {\n    // alternatively Object.keys(global).pop()\n    // but this may be faster (pending benchmarks)\n    firstGlobalProp = secondGlobalProp = undefined;\n    for (var p in global) {\n      // do not check frames cause it could be removed during import\n      if (shouldSkipProperty(p))\n        continue;\n      if (!firstGlobalProp)\n        firstGlobalProp = p;\n      else if (!secondGlobalProp)\n        secondGlobalProp = p;\n      lastGlobalProp = p;\n    }\n    return lastGlobalProp;\n  }\n\n  var impt = systemJSPrototype.import;\n  systemJSPrototype.import = function (id, parentUrl) {\n    noteGlobalProps();\n    return impt.call(this, id, parentUrl);\n  };\n\n  var emptyInstantiation = [[], function () { return {} }];\n\n  var getRegister = systemJSPrototype.getRegister;\n  systemJSPrototype.getRegister = function () {\n    var lastRegister = getRegister.call(this);\n    if (lastRegister)\n      return lastRegister;\n\n    // no registration -> attempt a global detection as difference from snapshot\n    // when multiple globals, we take the global value to be the last defined new global object property\n    // for performance, this will not support multi-version / global collisions as previous SystemJS versions did\n    // note in Edge, deleting and re-adding a global does not change its ordering\n    var globalProp = getGlobalProp(this.firstGlobalProp);\n    if (!globalProp)\n      return emptyInstantiation;\n\n    var globalExport;\n    try {\n      globalExport = global[globalProp];\n    }\n    catch (e) {\n      return emptyInstantiation;\n    }\n\n    return [[], function (_export) {\n      return {\n        execute: function () {\n          _export(globalExport);\n          _export({ default: globalExport, __useDefault: true });\n        }\n      };\n    }];\n  };\n\n  var isIE11 = typeof navigator !== 'undefined' && navigator.userAgent.indexOf('Trident') !== -1;\n\n  function shouldSkipProperty(p) {\n    return !global.hasOwnProperty(p)\n      || !isNaN(p) && p < global.length\n      || isIE11 && global[p] && typeof window !== 'undefined' && global[p].parent === window;\n  }\n})(typeof self !== 'undefined' ? self : global);\n"],"names":["global","shouldSkipProperty","p","hasOwnProperty","isNaN","length","isIE11","window","parent","firstGlobalProp","secondGlobalProp","lastGlobalProp","systemJSPrototype","System","constructor","prototype","impt","import","id","parentUrl","undefined","noteGlobalProps","call","this","emptyInstantiation","getRegister","lastRegister","globalExport","globalProp","useFirstGlobalProp","foundLastProp","result","cnt","getGlobalProp","e","_export","execute","default","__useDefault","navigator","userAgent","indexOf","self"],"mappings":"CAKA,SAAWA,GAqFT,SAASC,EAAmBC,GAC1B,OAAQF,EAAOG,eAAeD,KACxBE,MAAMF,IAAUF,EAAOK,OAAXH,GACbI,GAAUN,EAAOE,IAAwB,oBAAXK,QAA0BP,EAAOE,GAAGM,SAAWD,OAvFpF,IAGIE,EAAiBC,EAAkBC,EAHnCC,EAAoBZ,EAAOa,OAAOC,YAAYC,UA0C9CC,EAAOJ,EAAkBK,OAC7BL,EAAkBK,OAAS,SAAUC,EAAIC,GAEvC,OApBF,WAIE,IAAK,IAAIjB,KADTO,EAAkBC,OAAmBU,EACvBpB,EAERC,EAAmBC,KAElBO,EAEKC,IACRA,EAAmBR,GAFnBO,EAAkBP,EAGpBS,EAAiBT,GAOnBmB,GACOL,EAAKM,KAAKC,KAAML,EAAIC,IAG7B,IAAIK,EAAqB,CAAC,GAAI,WAAc,MAAO,KAE/CC,EAAcb,EAAkBa,YACpCb,EAAkBa,YAAc,WAC9B,IAAIC,EAAeD,EAAYH,KAAKC,MACpC,GAAIG,EACF,OAAOA,EAMT,IAIIC,EAJAC,EAxDN,SAAwBC,GACtB,IACIC,EAAeC,EADfC,EAAM,EAEV,IAAK,IAAI9B,KAAKF,EAEZ,IAAIC,EAAmBC,GAAvB,CAEA,GAAY,IAAR8B,GAAa9B,IAAMO,GAA2B,IAARuB,GAAa9B,IAAMQ,EAC3D,OAAOR,EACL4B,GACFnB,EAAiBT,EACjB6B,EAASF,GAAsBE,GAAU7B,GAGzC4B,EAAgB5B,IAAMS,EAExBqB,IAEF,OAAOD,EAsCUE,CAAcV,KAAKd,iBACpC,IAAKmB,EACH,OAAOJ,EAGT,IACEG,EAAe3B,EAAO4B,GAExB,MAAOM,GACL,OAAOV,EAGT,MAAO,CAAC,GAAI,SAAUW,GACpB,MAAO,CACLC,QAAS,WACPD,EAAQR,GACRQ,EAAQ,CAAEE,QAASV,EAAcW,cAAc,SAMvD,IAAIhC,EAA8B,oBAAdiC,YAAyE,IAA5CA,UAAUC,UAAUC,QAAQ,WAnF/E,CA0FmB,oBAATC,KAAuBA,KAAO1C"}