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use proc_macro2::Span;
use syn::Ident;
pub fn is_local_metric(metric_type: Ident) -> bool {
metric_type.to_string().starts_with("Local")
}
pub fn to_non_local_metric_type(metric_type: Ident) -> Ident {
let metric_type_str = metric_type.to_string();
if metric_type_str.starts_with("Local") {
Ident::new(&metric_type_str[5..], Span::call_site())
} else {
metric_type
}
}
pub fn get_metric_vec_type(metric_type: Ident) -> Ident {
Ident::new(&format!("{}Vec", metric_type), Span::call_site())
}
pub fn get_label_struct_name(struct_name: Ident, label_index: usize) -> Ident {
let mut struct_name = struct_name.to_string();
if label_index > 0 {
struct_name.push_str(&(label_index + 1).to_string());
}
Ident::new(&struct_name, Span::call_site())
}
pub fn get_member_type(
struct_name: Ident,
label_index: usize,
metric_type: Ident,
is_last_label: bool,
) -> Ident {
if is_last_label {
metric_type
} else {
get_label_struct_name(struct_name, label_index + 1)
}
}
pub fn get_inner_member_type(
struct_name: Ident,
label_index: usize,
metric_type: Ident,
is_last_label: bool,
) -> Ident {
if is_last_label {
metric_type
} else {
Ident::new(
&format!(
"{}Inner",
get_label_struct_name(struct_name, label_index + 1)
),
Span::call_site(),
)
}
}
pub fn get_delegator_member_type(
struct_name: Ident,
label_index: usize,
is_last_label: bool,
) -> Ident {
if is_last_label {
Ident::new("usize", Span::call_site())
} else {
Ident::new(
&format!(
"{}{}",
get_label_struct_name(struct_name, label_index + 1),
"Delegator"
),
Span::call_site(),
)
}
}