PoolByteArray

A pooled Array of bytes.

Description

An Array specifically designed to hold bytes. Optimized for memory usage, does not fragment the memory.

Note: This type is passed by value and not by reference.

Methods

PoolByteArrayPoolByteArray ( Array from )
voidappend ( int byte )
voidappend_array ( PoolByteArray array )
PoolByteArraycompress ( int compression_mode=0 )
PoolByteArraydecompress ( int buffer_size, int compression_mode=0 )
boolempty ( )
Stringget_string_from_ascii ( )
Stringget_string_from_utf8 ( )
Stringhex_encode ( )
intinsert ( int idx, int byte )
voidinvert ( )
voidpush_back ( int byte )
voidremove ( int idx )
voidresize ( int idx )
voidset ( int idx, int byte )
intsize ( )
PoolByteArraysubarray ( int from, int to )

Method Descriptions

Constructs a new PoolByteArray. Optionally, you can pass in a generic Array that will be converted.


  • void append ( int byte )

Appends an element at the end of the array (alias of push_back).


Appends a PoolByteArray at the end of this array.


Returns a new PoolByteArray with the data compressed. Set the compression mode using one of CompressionMode’s constants.


Returns a new PoolByteArray with the data decompressed. Set buffer_size to the size of the uncompressed data. Set the compression mode using one of CompressionMode’s constants.


Returns true if the array is empty.


  • String get_string_from_ascii ( )

Returns a copy of the array’s contents as String. Fast alternative to get_string_from_utf8 if the content is ASCII-only. Unlike the UTF-8 function this function maps every byte to a character in the array. Multibyte sequences will not be interpreted correctly. For parsing user input always use get_string_from_utf8.


  • String get_string_from_utf8 ( )

Returns a copy of the array’s contents as String. Slower than get_string_from_ascii but supports UTF-8 encoded data. Use this function if you are unsure about the source of the data. For user input this function should always be preferred.


Returns a hexadecimal representation of this array as a String.

var array = PoolByteArray([11, 46, 255])
print(array.hex_encode()) # Prints: 0b2eff

Inserts a new element at a given position in the array. The position must be valid, or at the end of the array (idx == size()).


  • void invert ( )

Reverses the order of the elements in the array.


  • void push_back ( int byte )

Appends an element at the end of the array.


  • void remove ( int idx )

Removes an element from the array by index.


  • void resize ( int idx )

Sets the size of the array. If the array is grown, reserves elements at the end of the array. If the array is shrunk, truncates the array to the new size.


  • void set ( int idx, int byte )

Changes the byte at the given index.


Returns the size of the array.


Returns the slice of the PoolByteArray between indices (inclusive) as a new PoolByteArray. Any negative index is considered to be from the end of the array.

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