Function format_int

compiler/src/modules/vm/handlers/format.rs:181–198

(v: Val, s: &Spec, heap: &HeapPool)

}

fn format_int(v: Val, s: &Spec, heap: &HeapPool) -> Result<String, &'static str> {
    let (neg, mag) = int_to_decimal_parts(v, heap)?;
    let (digits, prefix): (String, &'static str) = match s.ty {
        b'd' => (mag, ""),
        b'b' => (decimal_to_radix(&mag, 2), if s.alt { "0b" } else { "" }),
        b'o' => (decimal_to_radix(&mag, 8), if s.alt { "0o" } else { "" }),
        b'x' => (decimal_to_radix(&mag, 16), if s.alt { "0x" } else { "" }),
        b'X' => (decimal_to_radix(&mag, 16).to_uppercase(), if s.alt { "0X" } else { "" }),
        _ => unreachable!(),
    };
    let body = if s.sep != 0 { add_grouped(&digits, group_size(s.ty, s.sep), s.sep) } else { digits };
    let sign_ch = sign_char(neg, s.sign);
    let mut left = String::new();
    if let Some(c) = sign_ch { left.push(c); }
    left.push_str(prefix);
    left.push_str(&body);
    Ok(pad_aligned(s, &left, sign_ch.map(|_| 1).unwrap_or(0) + prefix.len()))
}

fn format_float(v: Val, s: &Spec, ty: u8, heap: &HeapPool) -> Result<String, &'static str> {
    let f = require_float(v, heap)?;