Enum join_impl::expr_chain::expr::ErrExpr

pub enum ErrExpr {
    Or(Expr),
    OrElse(Expr),
    MapErr(Expr),
}

ErrExpr used to define types of expression which will be evaluated in case of Err or None.

Variants

Or(Expr)

.or(Expr)

OrElse(Expr)

.or_else(Expr)

MapErr(Expr)

.map_err(Expr)

Trait Implementations

impl InnerExpr for ErrExpr

fn extract_inner(&self) -> Option<Vec<&Expr>>

Extracts Expr(s) from given value if applicable.

fn replace_inner(&self, exprs: Vec<Expr>) -> Option<Self>

Replaces current expr by given Expr if it's possible, returning Some(Self) with given Expr(s), otherwise returns None.

fn is_replaceable(&self) -> bool

Can expr be replaced or not.

impl Clone for ErrExpr

fn clone(&self) -> ErrExpr

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Eq for ErrExpr

impl PartialEq<ErrExpr> for ErrExpr

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

This method tests for self and other values to be equal, and is used by ==.

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

This method tests for !=.

impl Debug for ErrExpr

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

Formats the value using the given formatter.

impl StructuralPartialEq for ErrExpr

impl StructuralEq for ErrExpr

impl ToTokens for ErrExpr

fn to_tokens(&self, output: &mut TokenStream)

Write self to the given TokenStream.

fn into_token_stream(self) -> TokenStream

Convert self directly into a TokenStream object.

fn to_token_stream(&self) -> TokenStream

Convert self directly into a TokenStream object.