Trait ExprExtension

pub trait ExprExtension {
    // Required method
    fn get_self(&self) -> &Expr;

    // Provided methods
    fn as_unsigned_integer<T>(&self) -> Result<T>
       where T: FromStr,
             T::Err: Display { ... }
    fn as_signed_integer<T>(&self) -> Result<T>
       where T: FromStr + Neg<Output = T>,
             T::Err: Display { ... }
    fn as_unsigned_float<T>(&self) -> Result<T>
       where T: FromStr,
             T::Err: Display { ... }
    fn as_float<T>(&self) -> Result<T>
       where T: FromStr + Neg<Output = T>,
             T::Err: Display { ... }
    fn as_string(&self) -> Result<String> { ... }
    fn as_bool(&self) -> Result<bool> { ... }
    fn as_path(&self) -> Result<&Path> { ... }
}

Required Methods

fn get_self(&self) -> &Expr

Provided Methods

fn as_unsigned_integer<T>(&self) -> Result<T>

where T: FromStr, T::Err: Display,

Returns the integer value of the expression if it is a literal unsigned integer.

fn as_signed_integer<T>(&self) -> Result<T>

where T: FromStr + Neg<Output = T>, T::Err: Display,

Returns the integer value of the expression if it is a literal signed integer.

fn as_unsigned_float<T>(&self) -> Result<T>

where T: FromStr, T::Err: Display,

fn as_float<T>(&self) -> Result<T>

where T: FromStr + Neg<Output = T>, T::Err: Display,

fn as_string(&self) -> Result<String>

Returns the string value of the expression if it is a literal string.

fn as_bool(&self) -> Result<bool>

Returns the boolean value of the expression if it is a literal bool.

fn as_path(&self) -> Result<&Path>

Returns the path of the expression if it is a path.

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 ExprExtension for Expr

fn get_self(&self) -> &Expr

Implementors