Struct opcua_types::UAString

pub struct UAString {
    pub value: Option<String>,
}

A UTF-8 encoded sequence of Unicode characters.

A string can hold a null value, so the string value is optional. When there is no string, the value is treated as null

To avoid naming conflict hell, the String type is named UAString.

Data type ID 12

Fields

value: Option<String>

Methods

impl UAString

fn from_str(value: &str) -> UAString

Create a string from a string slice

fn len(&self) -> isize

Returns the length of the string or -1 for null

fn null() -> UAString

Create a null string (not the same as an empty string)

fn is_null(&self) -> bool

Test if the string is null

Trait Implementations

impl Eq for UAString

impl PartialEq for UAString

fn eq(&self, __arg_0: &UAString) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, __arg_0: &UAString) -> bool

This method tests for !=.

impl Debug for UAString

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Clone for UAString

fn clone(&self) -> UAString

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Hash for UAString

fn hash<__H: Hasher>(&self, __arg_0: &mut __H)

Feeds this value into the given [Hasher].

fn hash_slice<H>(data: &[Self], state: &mut H) where
    H: Hasher, 

Feeds a slice of this type into the given [Hasher].

impl BinaryEncoder<UAString> for UAString

fn byte_len(&self) -> usize

Returns the byte length of the structure. This calculation should be exact and as efficient as possible.

fn encode<S: Write>(&self, stream: &mut S) -> EncodingResult<usize>

Encodes the instance to the write stream.

fn decode<S: Read>(stream: &mut S) -> EncodingResult<Self>

Decodes an instance from the read stream.

impl AsRef<str> for UAString

fn as_ref(&self) -> &str

Performs the conversion.