Built motion from commit 6a09e18b.|2.6.11

[motion2.git] / legacy-libs / protobufjs / src / writer_buffer.js

diff --git a/legacy-libs/protobufjs/src/writer_buffer.js b/legacy-libs/protobufjs/src/writer_buffer.js
new file mode 100644 (file)
index 0000000..09a4a91
--- /dev/null
+++ b/legacy-libs/protobufjs/src/writer_buffer.js
@@ -0,0 +1,85 @@
+"use strict";
+module.exports = BufferWriter;
+
+// extends Writer
+var Writer = require("./writer");
+(BufferWriter.prototype = Object.create(Writer.prototype)).constructor = BufferWriter;
+
+var util = require("./util/minimal");
+
+/**
+ * Constructs a new buffer writer instance.
+ * @classdesc Wire format writer using node buffers.
+ * @extends Writer
+ * @constructor
+ */
+function BufferWriter() {
+    Writer.call(this);
+}
+
+BufferWriter._configure = function () {
+    /**
+     * Allocates a buffer of the specified size.
+     * @function
+     * @param {number} size Buffer size
+     * @returns {Buffer} Buffer
+     */
+    BufferWriter.alloc = util._Buffer_allocUnsafe;
+
+    BufferWriter.writeBytesBuffer = util.Buffer && util.Buffer.prototype instanceof Uint8Array && util.Buffer.prototype.set.name === "set"
+        ? function writeBytesBuffer_set(val, buf, pos) {
+          buf.set(val, pos); // faster than copy (requires node >= 4 where Buffers extend Uint8Array and set is properly inherited)
+          // also works for plain array values
+        }
+        /* istanbul ignore next */
+        : function writeBytesBuffer_copy(val, buf, pos) {
+          if (val.copy) // Buffer values
+            val.copy(buf, pos, 0, val.length);
+          else for (var i = 0; i < val.length;) // plain array values
+            buf[pos++] = val[i++];
+        };
+};
+
+
+/**
+ * @override
+ */
+BufferWriter.prototype.bytes = function write_bytes_buffer(value) {
+    if (util.isString(value))
+        value = util._Buffer_from(value, "base64");
+    var len = value.length >>> 0;
+    this.uint32(len);
+    if (len)
+        this._push(BufferWriter.writeBytesBuffer, len, value);
+    return this;
+};
+
+function writeStringBuffer(val, buf, pos) {
+    if (val.length < 40) // plain js is faster for short strings (probably due to redundant assertions)
+        util.utf8.write(val, buf, pos);
+    else if (buf.utf8Write)
+        buf.utf8Write(val, pos);
+    else
+        buf.write(val, pos);
+}
+
+/**
+ * @override
+ */
+BufferWriter.prototype.string = function write_string_buffer(value) {
+    var len = util.Buffer.byteLength(value);
+    this.uint32(len);
+    if (len)
+        this._push(writeStringBuffer, len, value);
+    return this;
+};
+
+
+/**
+ * Finishes the write operation.
+ * @name BufferWriter#finish
+ * @function
+ * @returns {Buffer} Finished buffer
+ */
+
+BufferWriter._configure();