pub trait Value {
    type Artichoke;
    type Arg;
    type Value: Value;
    type Block;
    type Error;

    fn funcall(
        &self,
        interp: &mut Self::Artichoke,
        func: &str,
        args: &[Self::Arg],
        block: Option<Self::Block>
    ) -> Result<Self::Value, Self::Error>; fn freeze(&mut self, interp: &mut Self::Artichoke) -> Result<(), Self::Error>; fn is_frozen(&self, interp: &mut Self::Artichoke) -> bool; fn is_nil(&self) -> bool; fn respond_to(
        &self,
        interp: &mut Self::Artichoke,
        method: &str
    ) -> Result<bool, Self::Error>; fn inspect(&self, interp: &mut Self::Artichoke) -> Vec<u8, Global> ; fn to_s(&self, interp: &mut Self::Artichoke) -> Vec<u8, Global> ; fn ruby_type(&self) -> Ruby; fn try_convert_into<T>(
        self,
        interp: &Self::Artichoke
    ) -> Result<T, Self::Error>
    where
        Self: Sized,
        Self::Artichoke: TryConvert<Self, T, Error = Self::Error>
, { ... } fn try_convert_into_mut<T>(
        self,
        interp: &mut Self::Artichoke
    ) -> Result<T, Self::Error>
    where
        Self: Sized,
        Self::Artichoke: TryConvertMut<Self, T, Error = Self::Error>
, { ... } }
Expand description

A boxed Ruby value owned by the interpreter.

Value is equivalent to an RValue in MRI or mrb_value in mruby.

Required Associated Types§

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type Artichoke

Concrete type for Artichoke interpreter.

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type Arg

Concrete type for arguments passed to funcall.

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type Value: Value

Concrete type for results from funcall.

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type Block

Concrete type for blocks passed to funcall.

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type Error

Concrete error type for funcall errors.

Required Methods§

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fn funcall(
    &self,
    interp: &mut Self::Artichoke,
    func: &str,
    args: &[Self::Arg],
    block: Option<Self::Block>
) -> Result<Self::Value, Self::Error>

Call a method on this Value with arguments and an optional block.

Errors

If an exception is raised on the interpreter, then an error is returned.

If a TryConvert conversion fails, then an error is returned.

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fn freeze(&mut self, interp: &mut Self::Artichoke) -> Result<(), Self::Error>

Call #freeze on this Value.

Errors

If an exception is raised on the interpreter, then an error is returned.

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fn is_frozen(&self, interp: &mut Self::Artichoke) -> bool

Call #frozen? on this Value.

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fn is_nil(&self) -> bool

Whether self is nil

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fn respond_to(
    &self,
    interp: &mut Self::Artichoke,
    method: &str
) -> Result<bool, Self::Error>

Whether self responds to a method.

Equivalent to invoking #respond_to? on this Value.

Errors

If an exception is raised on the interpreter, then an error is returned.

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fn inspect(&self, interp: &mut Self::Artichoke) -> Vec<u8, Global>

Call #inspect on this Value.

This function can never fail.

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fn to_s(&self, interp: &mut Self::Artichoke) -> Vec<u8, Global>

Call #to_s on this Value.

This function can never fail.

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fn ruby_type(&self) -> Ruby

Return this values Rust-mapped type tag.

Provided Methods§

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fn try_convert_into<T>(self, interp: &Self::Artichoke) -> Result<T, Self::Error>where
    Self: Sized,
    Self::Artichoke: TryConvert<Self, T, Error = Self::Error>,

Consume self and try to convert self to type T using a TryConvert conversion.

Errors

If a TryConvert conversion fails, then an error is returned.

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fn try_convert_into_mut<T>(
    self,
    interp: &mut Self::Artichoke
) -> Result<T, Self::Error>where
    Self: Sized,
    Self::Artichoke: TryConvertMut<Self, T, Error = Self::Error>,

Consume self and try to convert self to type T using a TryConvertMut conversion.

Errors

If a TryConvertMut conversion fails, then an error is returned.

Implementors§