aboutsummaryrefslogtreecommitdiff
path: root/node_modules/stream-http/ie8-polyfill.js
diff options
context:
space:
mode:
authorFlorian Dold <florian.dold@gmail.com>2017-05-03 15:35:00 +0200
committerFlorian Dold <florian.dold@gmail.com>2017-05-03 15:35:00 +0200
commitde98e0b232509d5f40c135d540a70e415272ff85 (patch)
treea79222a5b58484ab3b80d18efcaaa7ccc4769b33 /node_modules/stream-http/ie8-polyfill.js
parente0c9d480a73fa629c1e4a47d3e721f1d2d345406 (diff)
downloadwallet-core-de98e0b232509d5f40c135d540a70e415272ff85.tar.xz
node_modules
Diffstat (limited to 'node_modules/stream-http/ie8-polyfill.js')
-rw-r--r--node_modules/stream-http/ie8-polyfill.js168
1 files changed, 168 insertions, 0 deletions
diff --git a/node_modules/stream-http/ie8-polyfill.js b/node_modules/stream-http/ie8-polyfill.js
new file mode 100644
index 000000000..adea0fa0c
--- /dev/null
+++ b/node_modules/stream-http/ie8-polyfill.js
@@ -0,0 +1,168 @@
+// These polyfills taken from MDN (developer.mozilla.org)
+
+// From https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Object/keys
+if (!Object.keys) {
+ Object.keys = (function() {
+ 'use strict';
+ var hasOwnProperty = Object.prototype.hasOwnProperty,
+ hasDontEnumBug = !({ toString: null }).propertyIsEnumerable('toString'),
+ dontEnums = [
+ 'toString',
+ 'toLocaleString',
+ 'valueOf',
+ 'hasOwnProperty',
+ 'isPrototypeOf',
+ 'propertyIsEnumerable',
+ 'constructor'
+ ],
+ dontEnumsLength = dontEnums.length;
+
+ return function(obj) {
+ if (typeof obj !== 'object' && (typeof obj !== 'function' || obj === null)) {
+ throw new TypeError('Object.keys called on non-object');
+ }
+
+ var result = [], prop, i;
+
+ for (prop in obj) {
+ if (hasOwnProperty.call(obj, prop)) {
+ result.push(prop);
+ }
+ }
+
+ if (hasDontEnumBug) {
+ for (i = 0; i < dontEnumsLength; i++) {
+ if (hasOwnProperty.call(obj, dontEnums[i])) {
+ result.push(dontEnums[i]);
+ }
+ }
+ }
+ return result;
+ };
+ }());
+}
+
+// Production steps of ECMA-262, Edition 5, 15.4.4.18
+// Reference: http://es5.github.io/#x15.4.4.18
+if (!Array.prototype.forEach) {
+
+ Array.prototype.forEach = function(callback, thisArg) {
+
+ var T, k;
+
+ if (this == null) {
+ throw new TypeError(' this is null or not defined');
+ }
+
+ // 1. Let O be the result of calling ToObject passing the |this| value as the argument.
+ var O = Object(this);
+
+ // 2. Let lenValue be the result of calling the Get internal method of O with the argument "length".
+ // 3. Let len be ToUint32(lenValue).
+ var len = O.length >>> 0;
+
+ // 4. If IsCallable(callback) is false, throw a TypeError exception.
+ // See: http://es5.github.com/#x9.11
+ if (typeof callback !== "function") {
+ throw new TypeError(callback + ' is not a function');
+ }
+
+ // 5. If thisArg was supplied, let T be thisArg; else let T be undefined.
+ if (arguments.length > 1) {
+ T = thisArg;
+ }
+
+ // 6. Let k be 0
+ k = 0;
+
+ // 7. Repeat, while k < len
+ while (k < len) {
+
+ var kValue;
+
+ // a. Let Pk be ToString(k).
+ // This is implicit for LHS operands of the in operator
+ // b. Let kPresent be the result of calling the HasProperty internal method of O with argument Pk.
+ // This step can be combined with c
+ // c. If kPresent is true, then
+ if (k in O) {
+
+ // i. Let kValue be the result of calling the Get internal method of O with argument Pk.
+ kValue = O[k];
+
+ // ii. Call the Call internal method of callback with T as the this value and
+ // argument list containing kValue, k, and O.
+ callback.call(T, kValue, k, O);
+ }
+ // d. Increase k by 1.
+ k++;
+ }
+ // 8. return undefined
+ };
+}
+
+// Production steps of ECMA-262, Edition 5, 15.4.4.14
+// Reference: http://es5.github.io/#x15.4.4.14
+if (!Array.prototype.indexOf) {
+ Array.prototype.indexOf = function(searchElement, fromIndex) {
+
+ var k;
+
+ // 1. Let O be the result of calling ToObject passing
+ // the this value as the argument.
+ if (this == null) {
+ throw new TypeError('"this" is null or not defined');
+ }
+
+ var O = Object(this);
+
+ // 2. Let lenValue be the result of calling the Get
+ // internal method of O with the argument "length".
+ // 3. Let len be ToUint32(lenValue).
+ var len = O.length >>> 0;
+
+ // 4. If len is 0, return -1.
+ if (len === 0) {
+ return -1;
+ }
+
+ // 5. If argument fromIndex was passed let n be
+ // ToInteger(fromIndex); else let n be 0.
+ var n = +fromIndex || 0;
+
+ if (Math.abs(n) === Infinity) {
+ n = 0;
+ }
+
+ // 6. If n >= len, return -1.
+ if (n >= len) {
+ return -1;
+ }
+
+ // 7. If n >= 0, then Let k be n.
+ // 8. Else, n<0, Let k be len - abs(n).
+ // If k is less than 0, then let k be 0.
+ k = Math.max(n >= 0 ? n : len - Math.abs(n), 0);
+
+ // 9. Repeat, while k < len
+ while (k < len) {
+ // a. Let Pk be ToString(k).
+ // This is implicit for LHS operands of the in operator
+ // b. Let kPresent be the result of calling the
+ // HasProperty internal method of O with argument Pk.
+ // This step can be combined with c
+ // c. If kPresent is true, then
+ // i. Let elementK be the result of calling the Get
+ // internal method of O with the argument ToString(k).
+ // ii. Let same be the result of applying the
+ // Strict Equality Comparison Algorithm to
+ // searchElement and elementK.
+ // iii. If same is true, return k.
+ if (k in O && O[k] === searchElement) {
+ return k;
+ }
+ k++;
+ }
+ return -1;
+ };
+} \ No newline at end of file