Struct muse_lang::runtime::value::RustFunctionTable

pub struct RustFunctionTable<T> { /* private fields */ }

A table containing Rust-defined functions for various names and arities.

Implementations

impl<T> RustFunctionTable<T>

where T: CustomType + Trace,

pub const fn new() -> Self

Returns an empty function table.

pub fn with_fn<F>( self, name: impl SymbolList, arity: impl Into<Arity>, func: F, ) -> Self

where F: Fn(&mut VmContext<'_, '_>, &Rooted<T>) -> Result<Value, Fault> + Send + Sync + 'static,

Adds a function with name and arity to this table, and returns self.q

pub fn invoke( &self, vm: &mut VmContext<'_, '_>, name: &SymbolRef, arity: Arity, this: &Rooted<T>, ) -> Result<Value, Fault>

Invokes a function named name with arity arguments.

Errors

• Fault::UnknownSymbol: Returned if this table has no functions with the given name.
• Fault::IncorrectNumberOfArguments: Returned if no functions with the given name accept the given number of arguments.