1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24

use std::marker::PhantomData;

use crate::error::*;
use crate::writer::{
    attributes::{AttributeWriter, AttributeWriterState},
    cpool::{self, Insertable},
    encoding::*,
};

impl<Ctx: EncoderContext> AttributeWriter<Ctx, AttributeWriterState::Start> {
    pub fn constant_value<I>(mut self, value: I) -> Result<AttributeWriter<Ctx, AttributeWriterState::End>, EncodeError>
    where
        I: Insertable<cpool::Item>,
    {
        let length_writer = self.attribute_writer("ConstantValue")?;
        let value_index = value.insert(&mut self.context)?;
        self.context.encoder().write(value_index)?;
        length_writer.finish(&mut self.context)?;
        Ok(AttributeWriter {
            context: self.context,
            _marker: PhantomData,
        })
    }
}