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//! Version of `mod beta` for when the cargo feature is disabled
//!
//! See `beta.rs` for dev documentation.
use super::prelude::*;
#[derive(Debug, Copy, Clone, Eq, PartialEq)]
pub enum Enabled {}
pub type MaybeEnabled = Result<Enabled, ErrorGenerator<'static>>;
pub fn with_maybe_enabled<R>(_: MaybeEnabled, f: impl FnOnce() -> R) -> R {
f()
}
impl Enabled {
pub fn new_for_dd_option(span: Span) -> syn::Result<Self> {
Err(span.error(
"derive-deftly's `beta_deftly` template option is only available when the `beta` cargo feature is also enabled"
))
}
pub fn new_for_modules_feature(span: Span) -> syn::Result<Self> {
Err(span.error(
"reuseable define_derive_deftly modules are a beta feature, so only available when the `beta` cargo feature is also enabled"
))
}
pub fn new_for_imported_definitions() -> MaybeEnabled {
Err(error_generator!(
"module containing beta template features (defined using derive-deftly with beta cargo feature enabled)imported into template using derive-deftly with beta cargo feature disabled!"
))
}
#[allow(dead_code)] // sometimes we might not have any beta features
pub fn new_for_syntax(span: Span) -> syn::Result<Self> {
Err(span.error(
"beta derive-deftly feature used, which requires both the `beta` cargo feature and the `beta_deftly` template option"
))
}
}
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