Method peek_char

src/program/serde.rs:92–97

Look at the first character in the input without consuming it.

(&self)

impl<'de> Deserializer<'de> {
    // Look at the first character in the input without consuming it.
    pub fn peek_char(&self) -> Result<char> {
        self.input
            .chars()
            .next()
            .ok_or_else(|| eyre::eyre!("end of input"))
    }

    // Consume the first character in the input.
    pub fn next_char(&mut self) -> Result<char> {