Trait FromMetaExpr

pub trait FromMetaExpr: Sized {
    // Required method
    fn try_from_expr(expr: Expr) -> Result<Self>;
}

Required Methods

fn try_from_expr(expr: Expr) -> Result<Self>

Dyn Compatibility

This trait is not dyn compatible.

In older versions of Rust, dyn compatibility was called "object safety", so this trait is not object safe.

Implementations on Foreign Types

impl FromMetaExpr for Expr

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for Lit

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for Type

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for bool

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for f64

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for i64

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for u64

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for String

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for Ident

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for LitBool

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for LitFloat

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for LitInt

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for LitStr

fn try_from_expr(expr: Expr) -> Result<Self>

impl FromMetaExpr for Path

fn try_from_expr(expr: Expr) -> Result<Self>

impl<T: FromMetaExpr + Eq + Hash> FromMetaExpr for HashSet<T>

fn try_from_expr(expr: Expr) -> Result<Self>

impl<T: FromMetaExpr> FromMetaExpr for Option<T>

fn try_from_expr(expr: Expr) -> Result<Self>

impl<T: FromMetaExpr> FromMetaExpr for Vec<T>

fn try_from_expr(expr: Expr) -> Result<Self>

Implementors