pub(crate) enum ParseResult<T> {
    Success(T),
    Failure(Token, &'static str),
    Error(SpanString),
    ErrorReported,
}
Expand description

Represents the possible results of an attempted parse.

Variants

Success(T)

Parsed successfully.

Failure(Token, &'static str)

Arm failed to match. If the second parameter is token::Eof, it indicates an unexpected end of macro invocation. Otherwise, it indicates that no rules expected the given token.

Error(SpanString)

Fatal error (malformed macro?). Abort compilation.

ErrorReported

Auto Trait Implementations

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Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.

Layout

Note: Unable to compute type layout, possibly due to this type having generic parameters. Layout can only be computed for concrete, fully-instantiated types.