Enum Error 

pub enum Error {
    Unwritten {
        mnemonic: String,
        args: Vec<Kind>,
    },
    Immediate {
        mnemonic: String,
        imm: i64,
    },
    Crowded {
        mnemonic: String,
    },
    Scale {
        scale: u8,
    },
    Index,
    Argument {
        mnemonic: String,
        at: u8,
    },
}

Why an instruction could not be encoded.

Every one of these is a bug in the compiler rather than anything a program could ask for, so they carry enough to say which instruction it was and nothing more.

Variants

Unwritten

Nothing here encodes that mnemonic with those arguments.

Fields

mnemonic: String

The mnemonic that was asked for.

args: Vec<Kind>

What its arguments were.

Immediate

An immediate no form of that instruction can carry, which the machine cannot write and which would be a different number if it were cut down to fit.

Fields

mnemonic: String

The mnemonic that was asked for.

imm: i64

The number that would not fit.

Crowded

An instruction naming ah and also a register that cannot be named without a REX byte, which is a pair the encoding has no way to write.

Fields

mnemonic: String

The mnemonic that was asked for.

Scale

A scale that is not one of the four the machine has.

Fields

scale: u8

What was asked for.

Index

The stack pointer as an index, which is the one register that cannot be one, because its number is what the encoding uses to say there is no index.

Argument

An argument that is not the kind the row said it was, which cannot happen through encode and can through a row that disagrees with itself.

Fields

mnemonic: String

The mnemonic that was asked for.

at: u8

Which argument it was.

Trait Implementations

impl Clone for Error

fn clone(&self) -> Error

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for Error

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

Formats the value using the given formatter.

impl Display for Error

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

Formats the value using the given formatter.

impl Eq for Error

impl Error for Error

fn source(&self) -> Option<&(dyn Error + 'static)>

Returns the lower-level source of this error, if any.

fn description(&self) -> &str

👎Deprecated since 1.42.0:

use the Display impl or to_string()

fn cause(&self) -> Option<&dyn Error>

👎Deprecated since 1.33.0:

replaced by Error::source, which can support downcasting

fn provide<'a>(&'a self, request: &mut Request<'a>)

🔬This is a nightly-only experimental API. (error_generic_member_access)

Provides type-based access to context intended for error reports.

impl PartialEq for Error

fn eq(&self, other: &Error) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for Error