Enum poco_scheme::Value

pub enum Value {
    Fixnum(isize),
    String(Box<String>),
    Bool(bool),
    Null,
    Unspecified,
    Cons(Gc<[Value; 2]>),
    Symbol(Box<String>),
    PrimOp(&'static PrimOp),
    Closure(Box<Closure>),
    Exception(Box<Exception>),
}

Variants

Fixnum(isize)String(Box<String>)Bool(bool)NullUnspecifiedCons(Gc<[Value; 2]>)Symbol(Box<String>)PrimOp(&'static PrimOp)Closure(Box<Closure>)Exception(Box<Exception>)

Methods

impl Value

pub fn into_result(self) -> Result<Value, Box<Exception>>

pub fn list<I>(_elts: I) -> Self where
    I: IntoIterator,
    I::Item: Into<Value>, 

pub fn number<T>(n: T) -> Self where
    T: Into<isize>, 

pub fn as_fixnum(&self) -> Option<isize>

pub fn is_true(&self) -> bool

pub fn to_datum(&self) -> Option<Value>

Trait Implementations

impl Clone for Value

fn clone(&self) -> Value

Returns a copy of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl PartialEq<Value> for Value

fn eq(&self, other: &Value) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Value) -> bool

This method tests for !=.

impl From<bool> for Value

fn from(b: bool) -> Self

Performs the conversion.

impl<'a> From<&'a str> for Value

fn from(s: &'a str) -> Self

Performs the conversion.

impl From<Box<Exception>> for Value

fn from(e: Box<Exception>) -> Self

Performs the conversion.

impl<'_> From<&'_ Value> for Value

fn from(v: &Value) -> Self

Performs the conversion.

impl Display for Value

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Debug for Value

fn fmt(&self, f: &mut Formatter) -> Result

Formats the value using the given formatter.

impl Trace for Value

unsafe fn trace(&self)

Marks all contained Gcs.

unsafe fn root(&self)

Increments the root-count of all contained Gcs.

unsafe fn unroot(&self)

Decrements the root-count of all contained Gcs.

fn finalize_glue(&self)

Runs Finalize::finalize() on this object and all contained subobjects

impl Finalize for Value

fn finalize(&self)