[Pkg-javascript-commits] [node-sha.js] 89/237: fake buffer, based on DataView

[Bastien Roucariès]

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rouca pushed a commit to branch master
in repository node-sha.js.

commit 71a31b642d3212076dbd9e54cf6b6072b03c61ad
Author: Dominic Tarr <dominic.tarr at gmail.com>
Date:   Sat Jan 11 23:13:21 2014 +0700

    fake buffer, based on DataView
---
 fakebuffer.js | 42 ++++++++++++++++++++++++++++++++++++++++++
 sha1.js       |  2 +-
 2 files changed, 43 insertions(+), 1 deletion(-)

diff --git a/fakebuffer.js b/fakebuffer.js
new file mode 100644
index 0000000..2d90b01
--- /dev/null
+++ b/fakebuffer.js
@@ -0,0 +1,42 @@
+
+//return module.exports = require('buffer').Buffer
+
+module.exports = function (len) {
+
+  var dv = new DataView(new ArrayBuffer(len))
+
+  dv.writeUInt32BE = function (value, i) {
+    return dv.setUint32(i, value, false)
+  }
+  dv.writeUInt32LE = function (value, i) {
+    return dv.setUint32(i, value, true)
+  }
+
+  dv.readUInt32BE = function (value, i) {
+    return dv.getUint32(i, false)
+  }
+  dv.readUInt32LE = function (value, i) {
+    return dv.getUint32(i, true)
+  }
+
+  dv.writeInt32BE = function (value, i) {
+    return dv.setInt32(i, value, false)
+  }
+  dv.writeInt32LE = function (value, i) {
+    return dv.setInt32(i, value, true)
+  }
+
+  dv.readInt32BE = function (value, i) {
+    return dv.getInt32(i, false)
+  }
+  dv.readInt32LE = function (value, i) {
+    return dv.getInt32(i, true)
+  }
+
+  dv.isBuffer = function (e) {
+    return e instanceof DataView && e.writeUInt32BE
+  }
+
+  return dv
+
+}
diff --git a/sha1.js b/sha1.js
index d003e73..b9aec0c 100644
--- a/sha1.js
+++ b/sha1.js
@@ -12,7 +12,7 @@ var inherits = require('util').inherits
 var Hash = require('./hash')
 
 var hexpp = require('./hexpp')
-
+var Buffer = require('./fakebuffer')
 inherits(Sha1, Hash)
 
 var A = 0|0

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