Method first

core/src/compiler/syms.rs:517–521

Returns the first register available for this scope.

(&mut self)

impl TempScope {
    /// Returns the first register available for this scope.
    pub(crate) fn first(&mut self) -> Result<Register> {
        let reg = u8::try_from(usize::from(self.nlocals) + usize::from(self.base_temp))
            .map_err(|_| Error::OutOfRegisters(RegisterScope::Temp))?;
        Register::local(reg).map_err(|_| Error::OutOfRegisters(RegisterScope::Temp))
    }

    /// Allocates a new temporary register.
    pub(crate) fn alloc(&mut self) -> Result<Register> {