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Implemented typed arrays support

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This commit is contained in:
Vitaly Puzrin 2014-02-13 21:27:08 +04:00
parent 6676906303
commit 2d697f6910
1 changed files with 23 additions and 0 deletions
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23
lib/zlib/utils.js
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@ -22,6 +22,23 @@ exports.assign = function(obj /*from1, from2, from3, ...*/) {
exports.arraySet = function(dest, src, src_offs, len, dest_offs) {
// Suppose, that with typed array support destination is
// always typed - don't check it
if ((typeof Uint8Array !== 'undefined') &&
(!Array.isArray(src))) {
// optimize full copy
//if ((src_offs === 0) && (src.length === len)) {
// dest.set(src, dest_offs);
// return;
//}
dest.set(src.subarray(src_offs, src_offs+len), dest_offs);
return;
}
// Fallback to ordinary array
for(var i=0; i<len; i++) {
dest[dest_offs + i] = src[src_offs + i];
}
@ -29,5 +46,11 @@ exports.arraySet = function(dest, src, src_offs, len, dest_offs) {
exports.arrayCreate = function(length) {
if ((typeof Uint8Array !== 'undefined')) {
return new Uint8Array(length);
}
// Fallback to ordinary array
return new Array(length);
};