Enum disque_cli::Value
[−]
[src]
pub enum Value {
Null,
NullArray,
String(String),
Error(String),
Integer(i64),
Bulk(String),
BufBulk(Vec<u8>),
Array(Vec<Value>),
}Represents a RESP value, see Redis Protocol specification.
Variants
NullNull bulk reply, $-1\r\n
NullArrayNull array reply, *-1\r\n
String(String)For Simple Strings the first byte of the reply is "+".
Error(String)For Errors the first byte of the reply is "-".
Integer(i64)For Integers the first byte of the reply is ":".
Bulk(String)For Bulk Strings the first byte of the reply is "$".
BufBulk(Vec<u8>)For Bulk
Array(Vec<Value>)For Arrays the first byte of the reply is "*".
Methods
impl Value
fn is_null(&self) -> bool
Returns true if the value is a Null or NullArray. Returns false otherwise.
Examples
assert_eq!(Value::Null.is_null(), true); assert_eq!(Value::NullArray.is_null(), true); assert_eq!(Value::Integer(123).is_null(), false);
fn is_error(&self) -> bool
Returns true if the value is a Error. Returns false otherwise.
Examples
assert_eq!(Value::Null.is_error(), false); assert_eq!(Value::Error("".to_string()).is_error(), true);
fn encode(&self) -> Vec<u8>
Encode the value to RESP binary buffer.
Examples
let val = Value::String("OK正".to_string()); assert_eq!(val.encode(), vec![43, 79, 75, 230, 173, 163, 13, 10]);
fn to_encoded_string(&self) -> Result<String, Error>
Encode the value to RESP string.
Examples
let val = Value::String("OK正".to_string()); assert_eq!(val.to_encoded_string().unwrap(), "+OK正\r\n");
fn to_beautify_string(&self) -> String
Encode the value to beautify formated string.
Examples
assert_eq!(Value::Null.to_beautify_string(), "(Null)"); assert_eq!(Value::NullArray.to_beautify_string(), "(Null Array)"); assert_eq!(Value::String("OK".to_string()).to_beautify_string(), "OK"); assert_eq!(Value::Error("Err".to_string()).to_beautify_string(), "(Error) Err"); assert_eq!(Value::Integer(123).to_beautify_string(), "(Integer) 123"); assert_eq!(Value::Bulk("Bulk String".to_string()).to_beautify_string(), "\"Bulk String\""); assert_eq!(Value::BufBulk(vec![]).to_beautify_string(), "(Empty Buffer)"); assert_eq!(Value::BufBulk(vec![0, 100]).to_beautify_string(), "(Buffer) 00 64"); assert_eq!(Value::Array(vec![]).to_beautify_string(), "(Empty Array)");
A full formated example:
1) (Null)
2) (Null Array)
3) OK
4) (Error) Err
5) (Integer) 123
6) \"Bulk String\"
7) (Empty Array)
8) (Buffer) 00 64
9) 1) (Empty Array)
2) (Integer) 123
3) \"Bulk String\"
10) 1) (Null)
2) (Null Array)
3) OK
4) (Error) Err
5) (Integer) 123
6) \"Bulk String\"
7) (Empty Array)
8) (Buffer) 00 64
9) 1) (Empty Array)
2) (Integer) 123
3) \"Bulk String\"
11) (Null)
12) 1) (Null)
2) (Null Array)
3) OK
4) (Error) Err
5) (Integer) 123
6) \"Bulk String\"
7) (Empty Array)
8) (Buffer) 00 64
9) 1) (Empty Array)
2) (Integer) 123
3) \"Bulk String\"
10) 1) (Null)
2) (Null Array)
3) OK
4) (Error) Err
5) (Integer) 123
6) \"Bulk String\"
7) (Empty Array)
8) (Buffer) 00 64
9) 1) (Empty Array)
2) (Integer) 123
3) \"Bulk String\"
11) (Null)
13) (Null)