Trait WasmtimeOptionValue

pub trait WasmtimeOptionValue: Sized {
    const VAL_HELP: &'static str;

    // Required methods
    fn parse(val: Option<&str>) -> Result<Self>;
    fn display(&self, f: &mut Formatter<'_>) -> Result;
}

A helper trait for all types of options that can be parsed. This is what actually parses the =val in key=val

Required Associated Constants

const VAL_HELP: &'static str

Help text for the value to be specified.

Required Methods

fn parse(val: Option<&str>) -> Result<Self>

Parses the provided value, if given, returning an error on failure.

fn display(&self, f: &mut Formatter<'_>) -> Result

Write the value to f that would parse to 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 WasmtimeOptionValue for bool

const VAL_HELP: &'static str = "[=y|n]"

fn parse(val: Option<&str>) -> Result<Self>

fn display(&self, f: &mut Formatter<'_>) -> Result

impl WasmtimeOptionValue for u32

const VAL_HELP: &'static str = "=N"

fn parse(val: Option<&str>) -> Result<Self>

fn display(&self, f: &mut Formatter<'_>) -> Result

impl WasmtimeOptionValue for u64

const VAL_HELP: &'static str = "=N"

fn parse(val: Option<&str>) -> Result<Self>

fn display(&self, f: &mut Formatter<'_>) -> Result

impl WasmtimeOptionValue for usize

const VAL_HELP: &'static str = "=N"

fn parse(val: Option<&str>) -> Result<Self>

fn display(&self, f: &mut Formatter<'_>) -> Result

impl WasmtimeOptionValue for String

const VAL_HELP: &'static str = "=val"

fn parse(val: Option<&str>) -> Result<Self>

fn display(&self, f: &mut Formatter<'_>) -> Result

impl WasmtimeOptionValue for Duration

const VAL_HELP: &'static str = "=N|Ns|Nms|.."

fn parse(val: Option<&str>) -> Result<Duration>

fn display(&self, f: &mut Formatter<'_>) -> Result

impl WasmtimeOptionValue for Collector

const VAL_HELP: &'static str = "=drc|null"

fn parse(val: Option<&str>) -> Result<Self>

fn display(&self, f: &mut Formatter<'_>) -> Result

impl WasmtimeOptionValue for MpkEnabled

const VAL_HELP: &'static str = "[=y|n|auto]"

fn parse(val: Option<&str>) -> Result<Self>

fn display(&self, f: &mut Formatter<'_>) -> Result

impl WasmtimeOptionValue for OptLevel

const VAL_HELP: &'static str = "=0|1|2|s"

fn parse(val: Option<&str>) -> Result<Self>

fn display(&self, f: &mut Formatter<'_>) -> Result

impl WasmtimeOptionValue for RegallocAlgorithm

const VAL_HELP: &'static str = "=backtracking|single-pass"

fn parse(val: Option<&str>) -> Result<Self>

fn display(&self, f: &mut Formatter<'_>) -> Result

impl WasmtimeOptionValue for Strategy

const VAL_HELP: &'static str = "=winch|cranelift"

fn parse(val: Option<&str>) -> Result<Self>

fn display(&self, f: &mut Formatter<'_>) -> Result

Implementors

impl WasmtimeOptionValue for KeyValuePair

const VAL_HELP: &'static str = "=<name>=<val>"

impl WasmtimeOptionValue for WasiNnGraph

const VAL_HELP: &'static str = "=<format>::<dir>"