You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: syndrome.rs
    path of file: ./repos/rCore/kernel/src/arch/aarch64/interrupt
    
    the code of the file until where you have to start completion: //! Exception syndrome from ESR

#[derive(Debug, PartialEq, Copy, Clone)]
pub enum Fault {
    AddressSize,
    Translation,
    AccessFlag,
    Permission,
    Alignment,
    TlbConflict,
    Other(u8),
}

impl From<u32> for Fault {
    fn from(val: u32) -> Fault {
        use self::Fault::*;

        // IFSC or DFSC bits (ref: D10.2.39, Page 2457~2464).
        match val & 0b111100 {
            0b000000 => AddressSize,
            0b000100 => Translation,
            0b001000 => AccessFlag,
            0b001100 => Permission,
            0b100000 => Alignment,
            0b110000 => TlbConflict,
            _ => Other((val & 0b111111) as u8),
        }
    }
}

#[derive(Debug, PartialEq, Copy, Clone)]
pub enum Syndrome {
    Unknown,
    WfiWfe,
    McrMrc,
    McrrMrrc,
    LdcStc,
    SimdFp,
    Vmrs,
    Mrrc,
    IllegalExecutionState,
    Svc(u16),
    Hvc(u16),
    Smc(u16),
    MsrMrsSystem,
    InstructionAbort { kind: Fault, level: u8 },
    P
    
    fn from(esr: u32) -> Syndrome {
        use self::Syndrome::*;

        let ec = esr >> 26;
        let iss = esr & 0xFFFFFF;

        match ec {
            0b000000 => Unknown,
            0b000001 => WfiWfe,
            0b000011 => McrMrc,
            0b000100 => McrrMrrc,
            0b000101 => McrMrc,
            0b000110 => LdcStc,
            0b000111 => SimdFp,
            0b001000 => Vmrs,
            0b001100 => Mrrc,
            0b001110 => IllegalExecutionState,
            0b010001 => Svc((iss & 0xFFFF) as u16),
            0b010010 => Hvc((iss & 0xFFFF) as u16),
            0b010011 => Smc((iss & 0xFFFF) as u16),
            0b010101 => Svc((iss & 0xFFFF) as u16),
            0b010110 => Hvc((iss & 0xFFFF) as u16),
            0b010111 => Smc((iss & 0xFFFF) as u16),
            0b011000 => MsrMrsSystem,
            0b100000 | 0b100001 => InstructionAbort {
                kind: Fault::from(iss),
                level: (iss & 0b11) as u8,
            },
            0b100010 => PCAlignmentFault,
            0b100100 | 0b100101 => DataAbort {
                kind: Fault::from(iss),
                level: (iss & 0b11) as u8,
            },
            0b100110 => SpAlignmentFault,
            0b101000 => TrappedFpu,
            0b101100 => TrappedFpu,
            0b101111 => SError,
            0b110000 => Breakpoint,
            0b110001 => Breakpoint,
            0b110010 => Step,
            0b110011 => Step,
            0b110100 => Watchpoint,
            0b110101 => Watchpoint,
            0b111100 => Brk((iss & 0xFFFF) as u16),
            other => Other(other),
        }
    }