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|
use std::{
sync::Arc,
hash::{Hash, Hasher},
fmt,
};
use relative_path::RelativePath;
use crate::input::FileId;
pub trait FileResolver: fmt::Debug + Send + Sync + 'static {
fn file_stem(&self, file_id: FileId) -> String;
fn resolve(&self, file_id: FileId, path: &RelativePath) -> Option<FileId>;
fn debug_path(&self, _1file_id: FileId) -> Option<std::path::PathBuf> {
None
}
}
#[derive(Clone, Debug)]
pub struct FileResolverImp {
inner: Arc<FileResolver>,
}
impl PartialEq for FileResolverImp {
fn eq(&self, other: &FileResolverImp) -> bool {
self.inner() == other.inner()
}
}
impl Eq for FileResolverImp {}
impl Hash for FileResolverImp {
fn hash<H: Hasher>(&self, hasher: &mut H) {
self.inner().hash(hasher);
}
}
impl FileResolverImp {
pub fn new(inner: Arc<FileResolver>) -> FileResolverImp {
FileResolverImp { inner }
}
pub fn file_stem(&self, file_id: FileId) -> String {
self.inner.file_stem(file_id)
}
pub fn resolve(&self, file_id: FileId, path: &RelativePath) -> Option<FileId> {
self.inner.resolve(file_id, path)
}
pub fn debug_path(&self, file_id: FileId) -> Option<std::path::PathBuf> {
self.inner.debug_path(file_id)
}
fn inner(&self) -> *const FileResolver {
&*self.inner
}
}
impl Default for FileResolverImp {
fn default() -> FileResolverImp {
#[derive(Debug)]
struct DummyResolver;
impl FileResolver for DummyResolver {
fn file_stem(&self, _file_: FileId) -> String {
panic!("file resolver not set")
}
fn resolve(
&self,
_file_id: FileId,
_path: &::relative_path::RelativePath,
) -> Option<FileId> {
panic!("file resolver not set")
}
}
FileResolverImp {
inner: Arc::new(DummyResolver),
}
}
}
|
