Trait CoerceArg 

pub trait CoerceArg: Sized {
    // Required method
    fn coerce(val: &RValue, param_name: &str) -> Result<Self, RError>;
}

Coerce an RValue to a Rust type. Implemented for common R parameter types.

Required Methods

fn coerce(val: &RValue, param_name: &str) -> Result<Self, RError>

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 CoerceArg for bool

fn coerce(val: &RValue, param_name: &str) -> Result<Self, RError>

impl CoerceArg for f64

fn coerce(val: &RValue, param_name: &str) -> Result<Self, RError>

impl CoerceArg for i64

fn coerce(val: &RValue, param_name: &str) -> Result<Self, RError>

impl CoerceArg for usize

fn coerce(val: &RValue, param_name: &str) -> Result<Self, RError>

impl CoerceArg for String

fn coerce(val: &RValue, param_name: &str) -> Result<Self, RError>

impl<T: CoerceArg> CoerceArg for Option<T>

Option<T> coerces the value if present, but returns None for NULL. Missing args are handled by the derive (never reach CoerceArg).

fn coerce(val: &RValue, param_name: &str) -> Result<Self, RError>

Implementors

impl CoerceArg for RValue

impl CoerceArg for Vector

impl CoerceArg for Environment