www.aleph1.co.uk Git - yaffs-website/blob - node_modules/bluebird/js/release/catch_filter.js

   1 "use strict";
   2 module.exports = function(NEXT_FILTER) {
   3 var util = require("./util");
   4 var getKeys = require("./es5").keys;
   5 var tryCatch = util.tryCatch;
   6 var errorObj = util.errorObj;
   7
   8 function catchFilter(instances, cb, promise) {
   9     return function(e) {
  10         var boundTo = promise._boundValue();
  11         predicateLoop: for (var i = 0; i < instances.length; ++i) {
  12             var item = instances[i];
  13
  14             if (item === Error ||
  15                 (item != null && item.prototype instanceof Error)) {
  16                 if (e instanceof item) {
  17                     return tryCatch(cb).call(boundTo, e);
  18                 }
  19             } else if (typeof item === "function") {
  20                 var matchesPredicate = tryCatch(item).call(boundTo, e);
  21                 if (matchesPredicate === errorObj) {
  22                     return matchesPredicate;
  23                 } else if (matchesPredicate) {
  24                     return tryCatch(cb).call(boundTo, e);
  25                 }
  26             } else if (util.isObject(e)) {
  27                 var keys = getKeys(item);
  28                 for (var j = 0; j < keys.length; ++j) {
  29                     var key = keys[j];
  30                     if (item[key] != e[key]) {
  31                         continue predicateLoop;
  32                     }
  33                 }
  34                 return tryCatch(cb).call(boundTo, e);
  35             }
  36         }
  37         return NEXT_FILTER;
  38     };
  39 }
  40
  41 return catchFilter;
  42 };