Enum MacroError

pub enum MacroError {
    InvalidItemKind {
        kind: ItemKind,
    },
    InvalidArgument {
        arg: FnArg,
    },
    UnhandledArgumentType {
        ty: Ty,
    },
    UnhandledRetType {
        ty: Ty,
    },
    UnexpectedMultiTokenMacro {
        tokens: Vec<TokenTree>,
    },
    UnexpectedSingleToken {
        token: Token,
    },
    UnexpectedEndOfMacroInvocation {
        tokens: Tokens,
    },
    UnexpectedReparseFailure {
        err_msg: String,
    },
}

Variants

InvalidItemKind

Fields

kind: ItemKind

InvalidArgument

Fields

arg: FnArg

UnhandledArgumentType

Fields

ty: Ty

UnhandledRetType

Fields

ty: Ty

UnexpectedMultiTokenMacro

Fields

tokens: Vec<TokenTree>

UnexpectedSingleToken

Fields

token: Token

UnexpectedEndOfMacroInvocation

Fields

tokens: Tokens

UnexpectedReparseFailure

Fields

err_msg: String

Trait Implementations

impl Debug for MacroError

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

Formats the value using the given formatter.

impl Display for MacroError

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

Formats the value using the given formatter.

impl Fail for MacroError

fn name(&self) -> Option<&str>

Returns the “name” of the error.

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

Returns a reference to the underlying cause of this failure, if it is an error that wraps other errors.

fn backtrace(&self) -> Option<&Backtrace>

Returns a reference to the Backtrace carried by this failure, if it carries one.

fn context<D>(self, context: D) -> Context<D>

where D: Display + Send + Sync + 'static, Self: Sized,

Provides context for this failure.

fn compat(self) -> Compat<Self>

where Self: Sized,

Wraps this failure in a compatibility wrapper that implements std::error::Error.