Struct ion_binary_rs::IonEncoder

pub struct IonEncoder { /* fields omitted */ }

Allows to binary encode one or multiple IonValue.

Given how Ion format works there are two methods in order to use this utility.

• add allows to add IonValue to the buffer to later encoding.
• encode takes all biffered values and encodes them, generating the symbol’s table and the ion header. It returns a Vec.

use ion_binary_rs::{IonEncoder, IonParser, IonValue};
use std::collections::HashMap;

let mut ion_struct = HashMap::new();

ion_struct.insert("Model".to_string(), IonValue::String("CLK 350".to_string()));
ion_struct.insert("Type".to_string(), IonValue::String("Sedan".to_string()));
ion_struct.insert("Color".to_string(), IonValue::String("White".to_string()));
ion_struct.insert(
    "VIN".to_string(),
    IonValue::String("1C4RJFAG0FC625797".to_string()),
);
ion_struct.insert("Make".to_string(), IonValue::String("Mercedes".to_string()));
ion_struct.insert("Year".to_string(), IonValue::Integer(2019));

let ion_value = IonValue::Struct(ion_struct);

let mut encoder = IonEncoder::new();

encoder.add(ion_value.clone());
let bytes = encoder.encode();

let resulting_ion_value = IonParser::new(&bytes[..]).consume_value().unwrap().0;

assert_eq!(ion_value, resulting_ion_value);

Implementations

impl IonEncoder

pub fn new() -> IonEncoder

pub fn add(&mut self, value: IonValue)

pub fn encode(&mut self) -> Vec<u8>

Trait Implementations

impl Debug for IonEncoder

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for IonEncoder

fn default() -> Self

Returns the “default value” for a type.