deps: upgrade npm to 6.1.0

PR-URL: https://github.com/nodejs/node/pull/20190
Reviewed-By: Rich Trott <rtrott@gmail.com>
Reviewed-By: Ruben Bridgewater <ruben@bridgewater.de>
Reviewed-By: Tiancheng "Timothy" Gu <timothygu99@gmail.com>
Reviewed-By: Benjamin Gruenbaum <benjamingr@gmail.com>
Reviewed-By: Michaël Zasso <targos@protonmail.com>

1 files changed, 1095 insertions, 0 deletions

diff --git a/deps/npm/node_modules/smart-buffer/build/smartbuffer.js b/deps/npm/node_modules/smart-buffer/build/smartbuffer.js
new file mode 100644
index 0000000000..3e1b95f308
--- /dev/null
+++ b/deps/npm/node_modules/smart-buffer/build/smartbuffer.js
@@ -0,0 +1,1095 @@
+"use strict";
+Object.defineProperty(exports, "__esModule", { value: true });
+const utils_1 = require("./utils");
+// The default Buffer size if one is not provided.
+const DEFAULT_SMARTBUFFER_SIZE = 4096;
+// The default string encoding to use for reading/writing strings.
+const DEFAULT_SMARTBUFFER_ENCODING = 'utf8';
+class SmartBuffer {
+    /**
+       * Creates a new SmartBuffer instance.
+       *
+       * @param options { SmartBufferOptions } The SmartBufferOptions to apply to this instance.
+       */
+    constructor(options) {
+        this.length = 0;
+        this._encoding = DEFAULT_SMARTBUFFER_ENCODING;
+        this._writeOffset = 0;
+        this._readOffset = 0;
+        if (SmartBuffer.isSmartBufferOptions(options)) {
+            // Checks for encoding
+            if (options.encoding) {
+                utils_1.checkEncoding(options.encoding);
+                this._encoding = options.encoding;
+            }
+            // Checks for initial size length
+            if (options.size) {
+                if (utils_1.isFiniteInteger(options.size) && options.size > 0) {
+                    this._buff = Buffer.allocUnsafe(options.size);
+                }
+                else {
+                    throw new Error(utils_1.ERRORS.INVALID_SMARTBUFFER_SIZE);
+                }
+                // Check for initial Buffer
+            }
+            else if (options.buff) {
+                if (options.buff instanceof Buffer) {
+                    this._buff = options.buff;
+                    this.length = options.buff.length;
+                }
+                else {
+                    throw new Error(utils_1.ERRORS.INVALID_SMARTBUFFER_BUFFER);
+                }
+            }
+            else {
+                this._buff = Buffer.allocUnsafe(DEFAULT_SMARTBUFFER_SIZE);
+            }
+        }
+        else {
+            // If something was passed but it's not a SmartBufferOptions object
+            if (typeof options !== 'undefined') {
+                throw new Error(utils_1.ERRORS.INVALID_SMARTBUFFER_OBJECT);
+            }
+            // Otherwise default to sane options
+            this._buff = Buffer.allocUnsafe(DEFAULT_SMARTBUFFER_SIZE);
+        }
+    }
+    /**
+       * Creates a new SmartBuffer instance with the provided internal Buffer size and optional encoding.
+       *
+       * @param size { Number } The size of the internal Buffer.
+       * @param encoding { String } The BufferEncoding to use for strings.
+       *
+       * @return { SmartBuffer }
+       */
+    static fromSize(size, encoding) {
+        return new this({
+            size: size,
+            encoding: encoding
+        });
+    }
+    /**
+       * Creates a new SmartBuffer instance with the provided Buffer and optional encoding.
+       *
+       * @param buffer { Buffer } The Buffer to use as the internal Buffer value.
+       * @param encoding { String } The BufferEncoding to use for strings.
+       *
+       * @return { SmartBuffer }
+       */
+    static fromBuffer(buff, encoding) {
+        return new this({
+            buff: buff,
+            encoding: encoding
+        });
+    }
+    /**
+       * Creates a new SmartBuffer instance with the provided SmartBufferOptions options.
+       *
+       * @param options { SmartBufferOptions } The options to use when creating the SmartBuffer instance.
+       */
+    static fromOptions(options) {
+        return new this(options);
+    }
+    /**
+       * Type checking function that determines if an object is a SmartBufferOptions object.
+       */
+    static isSmartBufferOptions(options) {
+        const castOptions = options;
+        return castOptions && (castOptions.encoding !== undefined || castOptions.size !== undefined || castOptions.buff !== undefined);
+    }
+    // Signed integers
+    /**
+       * Reads an Int8 value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readInt8(offset) {
+        return this._readNumberValue(Buffer.prototype.readInt8, 1, offset);
+    }
+    /**
+       * Reads an Int16BE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readInt16BE(offset) {
+        return this._readNumberValue(Buffer.prototype.readInt16BE, 2, offset);
+    }
+    /**
+       * Reads an Int16LE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readInt16LE(offset) {
+        return this._readNumberValue(Buffer.prototype.readInt16LE, 2, offset);
+    }
+    /**
+       * Reads an Int32BE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readInt32BE(offset) {
+        return this._readNumberValue(Buffer.prototype.readInt32BE, 4, offset);
+    }
+    /**
+       * Reads an Int32LE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readInt32LE(offset) {
+        return this._readNumberValue(Buffer.prototype.readInt32LE, 4, offset);
+    }
+    /**
+       * Writes an Int8 value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeInt8(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeInt8, 1, value, offset);
+        return this;
+    }
+    /**
+       * Inserts an Int8 value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertInt8(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeInt8, 1, value, offset);
+        return this;
+    }
+    /**
+       * Writes an Int16BE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeInt16BE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeInt16BE, 2, value, offset);
+        return this;
+    }
+    /**
+       * Inserts an Int16BE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertInt16BE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeInt16BE, 2, value, offset);
+        return this;
+    }
+    /**
+       * Writes an Int16LE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeInt16LE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeInt16LE, 2, value, offset);
+        return this;
+    }
+    /**
+       * Inserts an Int16LE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertInt16LE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeInt16LE, 2, value, offset);
+        return this;
+    }
+    /**
+       * Writes an Int32BE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeInt32BE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeInt32BE, 4, value, offset);
+        return this;
+    }
+    /**
+       * Inserts an Int32BE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertInt32BE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeInt32BE, 4, value, offset);
+        return this;
+    }
+    /**
+       * Writes an Int32LE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeInt32LE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeInt32LE, 4, value, offset);
+        return this;
+    }
+    /**
+       * Inserts an Int32LE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertInt32LE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeInt32LE, 4, value, offset);
+        return this;
+    }
+    // Unsigned Integers
+    /**
+       * Reads an UInt8 value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readUInt8(offset) {
+        return this._readNumberValue(Buffer.prototype.readUInt8, 1, offset);
+    }
+    /**
+       * Reads an UInt16BE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readUInt16BE(offset) {
+        return this._readNumberValue(Buffer.prototype.readUInt16BE, 2, offset);
+    }
+    /**
+       * Reads an UInt16LE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readUInt16LE(offset) {
+        return this._readNumberValue(Buffer.prototype.readUInt16LE, 2, offset);
+    }
+    /**
+       * Reads an UInt32BE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readUInt32BE(offset) {
+        return this._readNumberValue(Buffer.prototype.readUInt32BE, 4, offset);
+    }
+    /**
+       * Reads an UInt32LE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readUInt32LE(offset) {
+        return this._readNumberValue(Buffer.prototype.readUInt32LE, 4, offset);
+    }
+    /**
+       * Writes an UInt8 value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeUInt8(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeUInt8, 1, value, offset);
+        return this;
+    }
+    /**
+       * Inserts an UInt8 value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertUInt8(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeUInt8, 1, value, offset);
+        return this;
+    }
+    /**
+       * Writes an UInt16BE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeUInt16BE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeUInt16BE, 2, value, offset);
+        return this;
+    }
+    /**
+       * Inserts an UInt16BE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertUInt16BE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeUInt16BE, 2, value, offset);
+        return this;
+    }
+    /**
+       * Writes an UInt16LE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeUInt16LE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeUInt16LE, 2, value, offset);
+        return this;
+    }
+    /**
+       * Inserts an UInt16LE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertUInt16LE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeUInt16LE, 2, value, offset);
+        return this;
+    }
+    /**
+       * Writes an UInt32BE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeUInt32BE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeUInt32BE, 4, value, offset);
+        return this;
+    }
+    /**
+       * Inserts an UInt32BE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertUInt32BE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeUInt32BE, 4, value, offset);
+        return this;
+    }
+    /**
+       * Writes an UInt32LE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeUInt32LE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeUInt32LE, 4, value, offset);
+        return this;
+    }
+    /**
+       * Inserts an UInt32LE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertUInt32LE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeUInt32LE, 4, value, offset);
+        return this;
+    }
+    // Floating Point
+    /**
+       * Reads an FloatBE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readFloatBE(offset) {
+        return this._readNumberValue(Buffer.prototype.readFloatBE, 4, offset);
+    }
+    /**
+       * Reads an FloatLE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readFloatLE(offset) {
+        return this._readNumberValue(Buffer.prototype.readFloatLE, 4, offset);
+    }
+    /**
+       * Writes a FloatBE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeFloatBE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeFloatBE, 4, value, offset);
+        return this;
+    }
+    /**
+       * Inserts a FloatBE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertFloatBE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeFloatBE, 4, value, offset);
+        return this;
+    }
+    /**
+       * Writes a FloatLE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeFloatLE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeFloatLE, 4, value, offset);
+        return this;
+    }
+    /**
+       * Inserts a FloatLE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertFloatLE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeFloatLE, 4, value, offset);
+        return this;
+    }
+    // Double Floating Point
+    /**
+       * Reads an DoublEBE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readDoubleBE(offset) {
+        return this._readNumberValue(Buffer.prototype.readDoubleBE, 8, offset);
+    }
+    /**
+       * Reads an DoubleLE value from the current read position or an optionally provided offset.
+       *
+       * @param offset { Number } The offset to read data from (optional)
+       * @return { Number }
+       */
+    readDoubleLE(offset) {
+        return this._readNumberValue(Buffer.prototype.readDoubleLE, 8, offset);
+    }
+    /**
+       * Writes a DoubleBE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeDoubleBE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeDoubleBE, 8, value, offset);
+        return this;
+    }
+    /**
+       * Inserts a DoubleBE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertDoubleBE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeDoubleBE, 8, value, offset);
+        return this;
+    }
+    /**
+       * Writes a DoubleLE value to the current write position (or at optional offset).
+       *
+       * @param value { Number } The value to write.
+       * @param offset { Number } The offset to write the value at.
+       *
+       * @return this
+       */
+    writeDoubleLE(value, offset) {
+        this._writeNumberValue(Buffer.prototype.writeDoubleLE, 8, value, offset);
+        return this;
+    }
+    /**
+       * Inserts a DoubleLE value at the given offset value.
+       *
+       * @param value { Number } The value to insert.
+       * @param offset { Number } The offset to insert the value at.
+       *
+       * @return this
+       */
+    insertDoubleLE(value, offset) {
+        this._insertNumberValue(Buffer.prototype.writeDoubleLE, 8, value, offset);
+        return this;
+    }
+    // Strings
+    /**
+       * Reads a String from the current read position.
+       *
+       * @param arg1 { Number | String } The number of bytes to read as a String, or the BufferEncoding to use for
+       *             the string (Defaults to instance level encoding).
+       * @param encoding { String } The BufferEncoding to use for the string (Defaults to instance level encoding).
+       *
+       * @return { String }
+       */
+    readString(arg1, encoding) {
+        let lengthVal;
+        // Length provided
+        if (typeof arg1 === 'number') {
+            utils_1.checkLengthValue(arg1);
+            lengthVal = Math.min(arg1, this.length - this._readOffset);
+        }
+        else {
+            encoding = arg1;
+            lengthVal = this.length - this._readOffset;
+        }
+        // Check encoding
+        if (typeof encoding !== 'undefined') {
+            utils_1.checkEncoding(encoding);
+        }
+        const value = this._buff.slice(this._readOffset, this._readOffset + lengthVal).toString(encoding || this._encoding);
+        this._readOffset += lengthVal;
+        return value;
+    }
+    /**
+       * Inserts a String
+       *
+       * @param value { String } The String value to insert.
+       * @param offset { Number } The offset to insert the string at.
+       * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+       */
+    insertString(value, offset, encoding) {
+        utils_1.checkOffsetValue(offset);
+        return this._handleString(value, true, offset, encoding);
+    }
+    /**
+       * Writes a String
+       *
+       * @param value { String } The String value to write.
+       * @param arg2 { Number | String } The offset to write the string at, or the BufferEncoding to use.
+       * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+       */
+    writeString(value, arg2, encoding) {
+        return this._handleString(value, false, arg2, encoding);
+    }
+    /**
+       * Reads a null-terminated String from the current read position.
+       *
+       * @param encoding { String } The BufferEncoding to use for the string (Defaults to instance level encoding).
+       *
+       * @return { String }
+       */
+    readStringNT(encoding) {
+        if (typeof encoding !== 'undefined') {
+            utils_1.checkEncoding(encoding);
+        }
+        // Set null character position to the end SmartBuffer instance.
+        let nullPos = this.length;
+        // Find next null character (if one is not found, default from above is used)
+        for (let i = this._readOffset; i < this.length; i++) {
+            if (this._buff[i] === 0x00) {
+                nullPos = i;
+                break;
+            }
+        }
+        // Read string value
+        const value = this._buff.slice(this._readOffset, nullPos);
+        // Increment internal Buffer read offset
+        this._readOffset = nullPos + 1;
+        return value.toString(encoding || this._encoding);
+    }
+    /**
+       * Inserts a null-terminated String.
+       *
+       * @param value { String } The String value to write.
+       * @param arg2 { Number | String } The offset to write the string to, or the BufferEncoding to use.
+       * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+       */
+    insertStringNT(value, offset, encoding) {
+        utils_1.checkOffsetValue(offset);
+        // Write Values
+        this.insertString(value, offset, encoding);
+        this.insertUInt8(0x00, offset + value.length);
+    }
+    /**
+       * Writes a null-terminated String.
+       *
+       * @param value { String } The String value to write.
+       * @param arg2 { Number | String } The offset to write the string to, or the BufferEncoding to use.
+       * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+       */
+    writeStringNT(value, arg2, encoding) {
+        // Write Values
+        this.writeString(value, arg2, encoding);
+        this.writeUInt8(0x00, typeof arg2 === 'number' ? arg2 + value.length : this.writeOffset);
+    }
+    // Buffers
+    /**
+       * Reads a Buffer from the internal read position.
+       *
+       * @param length { Number } The length of data to read as a Buffer.
+       *
+       * @return { Buffer }
+       */
+    readBuffer(length) {
+        if (typeof length !== 'undefined') {
+            utils_1.checkLengthValue(length);
+        }
+        const lengthVal = typeof length === 'number' ? length : this.length;
+        const endPoint = Math.min(this.length, this._readOffset + lengthVal);
+        // Read buffer value
+        const value = this._buff.slice(this._readOffset, endPoint);
+        // Increment internal Buffer read offset
+        this._readOffset = endPoint;
+        return value;
+    }
+    /**
+       * Writes a Buffer to the current write position.
+       *
+       * @param value { Buffer } The Buffer to write.
+       * @param offset { Number } The offset to write the Buffer to.
+       */
+    insertBuffer(value, offset) {
+        utils_1.checkOffsetValue(offset);
+        return this._handleBuffer(value, true, offset);
+    }
+    /**
+       * Writes a Buffer to the current write position.
+       *
+       * @param value { Buffer } The Buffer to write.
+       * @param offset { Number } The offset to write the Buffer to.
+       */
+    writeBuffer(value, offset) {
+        return this._handleBuffer(value, false, offset);
+    }
+    /**
+       * Reads a null-terminated Buffer from the current read poisiton.
+       *
+       * @return { Buffer }
+       */
+    readBufferNT() {
+        // Set null character position to the end SmartBuffer instance.
+        let nullPos = this.length;
+        // Find next null character (if one is not found, default from above is used)
+        for (let i = this._readOffset; i < this.length; i++) {
+            if (this._buff[i] === 0x00) {
+                nullPos = i;
+                break;
+            }
+        }
+        // Read value
+        const value = this._buff.slice(this._readOffset, nullPos);
+        // Increment internal Buffer read offset
+        this._readOffset = nullPos + 1;
+        return value;
+    }
+    /**
+       * Inserts a null-terminated Buffer.
+       *
+       * @param value { Buffer } The Buffer to write.
+       * @param offset { Number } The offset to write the Buffer to.
+       */
+    insertBufferNT(value, offset) {
+        utils_1.checkOffsetValue(offset);
+        // Write Values
+        this.insertBuffer(value, offset);
+        this.insertUInt8(0x00, offset + value.length);
+        return this;
+    }
+    /**
+       * Writes a null-terminated Buffer.
+       *
+       * @param value { Buffer } The Buffer to write.
+       * @param offset { Number } The offset to write the Buffer to.
+       */
+    writeBufferNT(value, offset) {
+        // Checks for valid numberic value;
+        if (typeof offset !== 'undefined') {
+            utils_1.checkOffsetValue(offset);
+        }
+        // Write Values
+        this.writeBuffer(value, offset);
+        this.writeUInt8(0x00, typeof offset === 'number' ? offset + value.length : this._writeOffset);
+        return this;
+    }
+    /**
+       * Clears the SmartBuffer instance to its original empty state.
+       */
+    clear() {
+        this._writeOffset = 0;
+        this._readOffset = 0;
+        this.length = 0;
+        return this;
+    }
+    /**
+       * Gets the remaining data left to be read from the SmartBuffer instance.
+       *
+       * @return { Number }
+       */
+    remaining() {
+        return this.length - this._readOffset;
+    }
+    /**
+       * Gets the current read offset value of the SmartBuffer instance.
+       *
+       * @return { Number }
+       */
+    get readOffset() {
+        return this._readOffset;
+    }
+    /**
+       * Sets the read offset value of the SmartBuffer instance.
+       *
+       * @param offset { Number } - The offset value to set.
+       */
+    set readOffset(offset) {
+        utils_1.checkOffsetValue(offset);
+        // Check for bounds.
+        utils_1.checkTargetOffset(offset, this);
+        this._readOffset = offset;
+    }
+    /**
+       * Gets the current write offset value of the SmartBuffer instance.
+       *
+       * @return { Number }
+       */
+    get writeOffset() {
+        return this._writeOffset;
+    }
+    /**
+       * Sets the write offset value of the SmartBuffer instance.
+       *
+       * @param offset { Number } - The offset value to set.
+       */
+    set writeOffset(offset) {
+        utils_1.checkOffsetValue(offset);
+        // Check for bounds.
+        utils_1.checkTargetOffset(offset, this);
+        this._writeOffset = offset;
+    }
+    /**
+       * Gets the currently set string encoding of the SmartBuffer instance.
+       *
+       * @return { BufferEncoding } The string Buffer encoding currently set.
+       */
+    get encoding() {
+        return this._encoding;
+    }
+    /**
+       * Sets the string encoding of the SmartBuffer instance.
+       *
+       * @param encoding { BufferEncoding } The string Buffer encoding to set.
+       */
+    set encoding(encoding) {
+        utils_1.checkEncoding(encoding);
+        this._encoding = encoding;
+    }
+    /**
+       * Gets the underlying internal Buffer. (This includes unmanaged data in the Buffer)
+       *
+       * @return { Buffer } The Buffer value.
+       */
+    get internalBuffer() {
+        return this._buff;
+    }
+    /**
+       * Gets the value of the internal managed Buffer (Includes managed data only)
+       *
+       * @param { Buffer }
+       */
+    toBuffer() {
+        return this._buff.slice(0, this.length);
+    }
+    /**
+       * Gets the String value of the internal managed Buffer
+       *
+       * @param encoding { String } The BufferEncoding to display the Buffer as (defaults to instance level encoding).
+       */
+    toString(encoding) {
+        const encodingVal = typeof encoding === 'string' ? encoding : this._encoding;
+        // Check for invalid encoding.
+        utils_1.checkEncoding(encodingVal);
+        return this._buff.toString(encodingVal, 0, this.length);
+    }
+    /**
+       * Destroys the SmartBuffer instance.
+       */
+    destroy() {
+        this.clear();
+        return this;
+    }
+    /**
+       * Handles inserting and writing strings.
+       *
+       * @param value { String } The String value to insert.
+       * @param isInsert { Boolean } True if inserting a string, false if writing.
+       * @param arg2 { Number | String } The offset to insert the string at, or the BufferEncoding to use.
+       * @param encoding { String } The BufferEncoding to use for writing strings (defaults to instance encoding).
+       */
+    _handleString(value, isInsert, arg3, encoding) {
+        let offsetVal = this._writeOffset;
+        let encodingVal = this._encoding;
+        // Check for offset
+        if (typeof arg3 === 'number') {
+            offsetVal = arg3;
+            // Check for encoding
+        }
+        else if (typeof arg3 === 'string') {
+            utils_1.checkEncoding(arg3);
+            encodingVal = arg3;
+        }
+        // Check for encoding (third param)
+        if (typeof encoding === 'string') {
+            utils_1.checkEncoding(encoding);
+            encodingVal = encoding;
+        }
+        // Calculate bytelength of string.
+        const byteLength = Buffer.byteLength(value, encodingVal);
+        // Ensure there is enough internal Buffer capacity.
+        if (isInsert) {
+            this.ensureInsertable(byteLength, offsetVal);
+        }
+        else {
+            this._ensureWriteable(byteLength, offsetVal);
+        }
+        // Write value
+        this._buff.write(value, offsetVal, byteLength, encodingVal);
+        // Increment internal Buffer write offset;
+        if (isInsert) {
+            this._writeOffset += byteLength;
+        }
+        else {
+            // If an offset was given, check to see if we wrote beyond the current writeOffset.
+            if (typeof arg3 === 'number') {
+                this._writeOffset = Math.max(this._writeOffset, offsetVal + byteLength);
+            }
+            else {
+                // If no offset was given, we wrote to the end of the SmartBuffer so increment writeOffset.
+                this._writeOffset += byteLength;
+            }
+        }
+        return this;
+    }
+    /**
+       * Handles writing or insert of a Buffer.
+       *
+       * @param value { Buffer } The Buffer to write.
+       * @param offset { Number } The offset to write the Buffer to.
+       */
+    _handleBuffer(value, isInsert, offset) {
+        const offsetVal = typeof offset === 'number' ? offset : this._writeOffset;
+        // Ensure there is enough internal Buffer capacity.
+        if (isInsert) {
+            this.ensureInsertable(value.length, offsetVal);
+        }
+        else {
+            this._ensureWriteable(value.length, offsetVal);
+        }
+        // Write buffer value
+        value.copy(this._buff, offsetVal);
+        // Increment internal Buffer write offset;
+        if (isInsert) {
+            this._writeOffset += value.length;
+        }
+        else {
+            // If an offset was given, check to see if we wrote beyond the current writeOffset.
+            if (typeof offset === 'number') {
+                this._writeOffset = Math.max(this._writeOffset, offsetVal + value.length);
+            }
+            else {
+                // If no offset was given, we wrote to the end of the SmartBuffer so increment writeOffset.
+                this._writeOffset += value.length;
+            }
+        }
+        return this;
+    }
+    /**
+       * Ensures that the internal Buffer is large enough to read data.
+       *
+       * @param length { Number } The length of the data that needs to be read.
+       * @param offset { Number } The offset of the data that needs to be read.
+       */
+    ensureReadable(length, offset) {
+        // Offset value defaults to managed read offset.
+        let offsetVal = this._readOffset;
+        // If an offset was provided, use it.
+        if (typeof offset !== 'undefined') {
+            // Checks for valid numberic value;
+            utils_1.checkOffsetValue(offset);
+            // Overide with custom offset.
+            offsetVal = offset;
+        }
+        // Checks if offset is below zero, or the offset+length offset is beyond the total length of the managed data.
+        if (offsetVal < 0 || offsetVal + length > this.length) {
+            throw new Error(utils_1.ERRORS.INVALID_READ_BEYOND_BOUNDS);
+        }
+    }
+    /**
+       * Ensures that the internal Buffer is large enough to insert data.
+       *
+       * @param dataLength { Number } The length of the data that needs to be written.
+       * @param offset { Number } The offset of the data to be written.
+       */
+    ensureInsertable(dataLength, offset) {
+        // Checks for valid numberic value;
+        utils_1.checkOffsetValue(offset);
+        // Ensure there is enough internal Buffer capacity.
+        this._ensureCapacity(this.length + dataLength);
+        // If an offset was provided and its not the very end of the buffer, copy data into appropriate location in regards to the offset.
+        if (offset < this.length) {
+            this._buff.copy(this._buff, offset + dataLength, offset, this._buff.length);
+        }
+        // Adjust tracked smart buffer length
+        if (offset + dataLength > this.length) {
+            this.length = offset + dataLength;
+        }
+        else {
+            this.length += dataLength;
+        }
+    }
+    /**
+       * Ensures that the internal Buffer is large enough to write data.
+       *
+       * @param dataLength { Number } The length of the data that needs to be written.
+       * @param offset { Number } The offset of the data to be written (defaults to writeOffset).
+       */
+    _ensureWriteable(dataLength, offset) {
+        const offsetVal = typeof offset === 'number' ? offset : this._writeOffset;
+        // Ensure enough capacity to write data.
+        this._ensureCapacity(offsetVal + dataLength);
+        // Adjust SmartBuffer length (if offset + length is larger than managed length, adjust length)
+        if (offsetVal + dataLength > this.length) {
+            this.length = offsetVal + dataLength;
+        }
+    }
+    /**
+       * Ensures that the internal Buffer is large enough to write at least the given amount of data.
+       *
+       * @param minLength { Number } The minimum length of the data needs to be written.
+       */
+    _ensureCapacity(minLength) {
+        const oldLength = this._buff.length;
+        if (minLength > oldLength) {
+            let data = this._buff;
+            let newLength = oldLength * 3 / 2 + 1;
+            if (newLength < minLength) {
+                newLength = minLength;
+            }
+            this._buff = Buffer.allocUnsafe(newLength);
+            data.copy(this._buff, 0, 0, oldLength);
+        }
+    }
+    /**
+       * Reads a numeric number value using the provided function.
+       *
+       * @param func { Function(offset: number) => number } The function to read data on the internal Buffer with.
+       * @param byteSize { Number } The number of bytes read.
+       * @param offset { Number } The offset to read from (optional). When this is not provided, the managed readOffset is used instead.
+       *
+       * @param { Number }
+       */
+    _readNumberValue(func, byteSize, offset) {
+        this.ensureReadable(byteSize, offset);
+        // Call Buffer.readXXXX();
+        const value = func.call(this._buff, typeof offset === 'number' ? offset : this._readOffset);
+        // Adjust internal read offset if an optional read offset was not provided.
+        if (typeof offset === 'undefined') {
+            this._readOffset += byteSize;
+        }
+        return value;
+    }
+    /**
+       * Inserts a numeric number value based on the given offset and value.
+       *
+       * @param func { Function(offset: number, offset?) => number} The function to write data on the internal Buffer with.
+       * @param byteSize { Number } The number of bytes written.
+       * @param value { Number } The number value to write.
+       * @param offset { Number } the offset to write the number at (REQUIRED).
+       *
+       */
+    _insertNumberValue(func, byteSize, value, offset) {
+        // Check for invalid offset values.
+        utils_1.checkOffsetValue(offset);
+        // Ensure there is enough internal Buffer capacity. (raw offset is passed)
+        this.ensureInsertable(byteSize, offset);
+        // Call buffer.writeXXXX();
+        func.call(this._buff, value, offset);
+        // Adjusts internally managed write offset.
+        this._writeOffset += byteSize;
+    }
+    /**
+       * Writes a numeric number value based on the given offset and value.
+       *
+       * @param func { Function(offset: number, offset?) => number} The function to write data on the internal Buffer with.
+       * @param byteSize { Number } The number of bytes written.
+       * @param value { Number } The number value to write.
+       * @param offset { Number } the offset to write the number at (REQUIRED).
+       *
+       */
+    _writeNumberValue(func, byteSize, value, offset) {
+        // If an offset was provided, validate it.
+        if (typeof offset === 'number') {
+            // Check if we're writing beyond the bounds of the managed data.
+            if (offset < 0) {
+                throw new Error(utils_1.ERRORS.INVALID_WRITE_BEYOND_BOUNDS);
+            }
+            utils_1.checkOffsetValue(offset);
+        }
+        // Default to writeOffset if no offset value was given.
+        const offsetVal = typeof offset === 'number' ? offset : this._writeOffset;
+        // Ensure there is enough internal Buffer capacity. (raw offset is passed)
+        this._ensureWriteable(byteSize, offsetVal);
+        func.call(this._buff, value, offsetVal);
+        // If an offset was given, check to see if we wrote beyond the current writeOffset.
+        if (typeof offset === 'number') {
+            this._writeOffset = Math.max(this._writeOffset, offsetVal + byteSize);
+        }
+        else {
+            // If no numeric offset was given, we wrote to the end of the SmartBuffer so increment writeOffset.
+            this._writeOffset += byteSize;
+        }
+    }
+}
+exports.SmartBuffer = SmartBuffer;
+//# sourceMappingURL=smartbuffer.js.map
\ No newline at end of file