Struct ffishim::types::Result

pub struct Result;

The std lib's Result type behavior.

Implementations

impl Behavior

pub fn try_or_return(&self, expr: Expr) -> Expr

Returns an expression that tries to unpack an FFIResult.

Upon failure, returns directly an error-full FFIResult. Can be used to unpack arguments in a ffi wrapper that returns an FFIResult.

pub fn wrap_success(&self, sty: &Type, expr: Expr) -> Expr

Returns an expression that wraps the given expr into a Result that is always successful.

Trait Implementations

impl Behavior for Behavior

fn is(&self, sty: &Type) -> bool

Returns true if this behavior is fit to handle the given sty.

fn fold(&self, sty: Type) -> Type

Transforms the given Type into its shim equivalent. For example: - String -> *mut libc::c_char - u32 -> libc::c_uint - ...

fn try_into(&self, _: &Type, _: Expr) -> Expr

Returns an Expression that mutates the shim type into the original one.

fn from(&self, sty: &Type, expr: Expr) -> Expr

Returns an Expression that mutates the original type into its shim equivalent.

fn free(&self, _: &Type, expr: Expr) -> Option<Expr>

Returns an Expression that frees an expression of the given type.