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use std::fmt;
use crate::gen::rust::ident_with_path::RustIdentWithPath;
use crate::gen::rust::keywords::is_rust_keyword;
use crate::gen::rust::rel_path::RustRelativePath;
/// Valid Rust identifier
#[derive(Eq, PartialEq, Debug, Clone, Hash)]
pub(crate) struct RustIdent(String);
impl RustIdent {
pub fn new(s: &str) -> RustIdent {
assert!(!s.is_empty());
assert!(!s.contains("/"), "{}", s);
assert!(!s.contains("."), "{}", s);
assert!(!s.contains(":"), "{}", s);
assert!(!s.contains(" "), "{}", s);
assert!(!s.contains("#"), "{}", s);
RustIdent(s.to_owned())
}
pub(crate) fn get(&self) -> &str {
&self.0
}
pub fn into_string(self) -> String {
self.0
}
pub fn to_path(&self) -> RustIdentWithPath {
RustIdentWithPath::from(&self.0)
}
pub(crate) fn into_rel_path(self) -> RustRelativePath {
RustRelativePath::from_idents([self])
}
}
impl fmt::Display for RustIdent {
fn fmt(&self, f: &mut fmt::Formatter) -> fmt::Result {
// Rust-protobuf uses `_` suffix to escape identifiers instead of raw identifiers
// because some identifiers cannot be escaped as raw identifiers,
// e.g. `r#self` is not a valid raw identifier.
if is_rust_keyword(&self.0) {
write!(f, "{}_", self.0)
} else {
write!(f, "{}", self.0)
}
}
}
impl From<&'_ str> for RustIdent {
fn from(s: &str) -> Self {
RustIdent::new(s)
}
}
impl From<String> for RustIdent {
fn from(s: String) -> Self {
RustIdent::new(&s)
}
}
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