diff options
Diffstat (limited to 'frontend-old/node_modules/protobufjs/src/writer_buffer.js')
| -rw-r--r-- | frontend-old/node_modules/protobufjs/src/writer_buffer.js | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/frontend-old/node_modules/protobufjs/src/writer_buffer.js b/frontend-old/node_modules/protobufjs/src/writer_buffer.js new file mode 100644 index 0000000..09a4a91 --- /dev/null +++ b/frontend-old/node_modules/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(); |
