Method validate_arg_len

src/sql/src/func.rs:626–631

Validates that the number of input elements are viable for `self`.

(&self, input_len: usize)

    /// Validates that the number of input elements are viable for `self`.
    fn validate_arg_len(&self, input_len: usize) -> bool {
        match self {
            Self::Exact(p) => p.len() == input_len,
            Self::Variadic { leading, .. } => input_len > leading.len(),
        }
    }

    /// Matches a `&[SqlScalarType]` derived from the user's function argument
    /// against this `ParamList`'s permitted arguments.